Dublin / New River Valley (KPSK) *Lat: *37.13°N*Lon: *80.68°W*Elev: *
2106ft. 

Fair

58°F

14°C

*Humidity* 
72% 
*Wind Speed* 
Calm 
*Barometer* 
30.18 in 
*Dewpoint* 
49°F (9°C) 
*Visibility* 
10.00 mi 
*Last update* 
26 Aug 8:35 am EDT 

*More Information:*

Local Forecast Office <https://www.weather.gov/rnk>More Local Wx 
<http://forecast.weather.gov/obslocal.php?warnzone=VAZ013&local_place=2%20Miles%20N%20Dublin%20VA&zoneid=EDT&offset=14400>3
 
Day History <http://forecast.weather.gov/data/obhistory/KPSK.html>Hourly 
Weather 
Forecast 
<https://forecast.weather.gov/MapClick.php?lat=37.1333&lon=-80.6833&unit=0&lg=english&FcstType=graphical>


On Tuesday, August 26, 2025 at 8:53:11 AM UTC-4 kufuu wrote:

> Care to help me calibrate a lacrosse ws2315 barometer for the same 
> location ?
> @1865 ft 
>
> LOOP:   2025-08-26 08:50:36 EDT (1756212636) 'altimeter': 
> '30.164197911340803', 'appTemp': '51.38368578493353', 'barometer': 
> '30.182147019224704', 'cloudbase': '2309.6401397103373', 'dateTime': 
> '1756212636', 'dewpoint': '49.424', 'ET': 'None', 'heatindex': '50.655', 
> 'humidex': '53.50448395157409', 'inHumidity': '63.0', 'inTemp': '68.0', 
> 'maxSolarRad': '313.0360228722064', 'outHumidity': '93.0', 'outTemp': 
> '51.44', 'pressure': '28.18637306875', 'rain': '0.0', 'rainRate': '0.0', 
> 'rainTotal': '2.123', 'usUnits': '1', 'windchill': '51.44', 'windDir': 
> 'None', 'windGust': 'None', 'windGustDir': 'None', 'windrun': 'None', 
> 'windSpeed': '0.0'
> REC:    2025-08-26 08:50:00 EDT (1756212600) 'altimeter': 
> '30.165237851863115', 'appTemp': '51.156335502157674', 'barometer': 
> '30.183928516712175', 'cloudbase': '2309.283134427261', 'dateTime': 
> '1756212600', 'dewpoint': '49.244', 'ET': 'None', 'heatindex': '50.457', 
> 'humidex': '53.243755294635065', 'inHumidity': '63.0', 'inTemp': '68.0', 
> 'interval': '5.0', 'maxSolarRad': '306.82044187271407', 'outHumidity': 
> '93.0', 'outTemp': '51.26', 'pressure': '28.18735740166667', 'rain': '0.0', 
> 'rainRate': '0.0', 'rainTotal': '2.123', 'usUnits': '1', 'windchill': 
> '51.26', 'windDir': 'None', 'windGust': '0.0', 'windGustDir': 'None', 
> 'windrun': '0.0', 'windSpeed': '0.0'
>
> On Sunday, August 24, 2025 at 9:55:39 AM UTC-4 kufuu wrote:
>
>> Thank You very much !!
>>
>> On Sunday, August 24, 2025 at 9:39:57 AM UTC-4 [email protected] wrote:
>>
>>> WeeWX:
>>> altimeter': '30.029
>>> barometer': '29.98
>>> pressure': '28.058
>>>
>>> KPSK 2025-08-24 08:35:00 altimeter = 30.02 inHg
>>>
>>> KPSK 2025-08-24 08:35:00 SLP =1014.22 = 29.95 inHg
>>>
>>> You are spot on with altimeter!
>>> KPSK does not publish SLP in its METAR so I had to hunt around for it. 
>>> You can us your NWS Time series Viewer to get SLP.. WeeWX refers to SLP as 
>>> "barometer".
>>>
>>> I'd say you are now calibrated.
>>>
>>> On Sunday, August 24, 2025 at 9:06:51 AM UTC-4 kufuu wrote:
>>>
>>>>
>>>> *Current conditions at* Dublin / New River Valley (KPSK) *Lat: *37.13°N
>>>> *Lon: *80.68°W*Elev: *2106ft. 
>>>>
>>>> Overcast
>>>>
>>>> 67°F
>>>>
>>>> 19°C
>>>>
>>>> *Humidity* 
>>>> 88% 
>>>> *Wind Speed* 
>>>> SW 3 mph 
>>>> *Barometer* 
>>>> 30.02 in 
>>>> *Dewpoint* 
>>>> 64°F (18°C) 
>>>> *Visibility* 
>>>> 10.00 mi 
>>>> *Last update* 
>>>> 24 Aug 8:35 am EDT 
>>>>
>>>> On Sunday, August 24, 2025 at 8:56:35 AM UTC-4 kufuu wrote:
>>>>
>>>>> REC:    2025-08-24 08:50:00 EDT (1756039800) 'altimeter': 
>>>>> '30.029532326429237', 'appTemp': '72.57562147734592', 'barometer': 
>>>>> '29.981221699640386', 'cloudbase': '2929.6889799923492', 'dateTime': 
>>>>> '1756039800', 'dewpoint': '63.31536848803366', 'ET': 'None', 'heatindex': 
>>>>> '68.495', 'humidex': '78.03578397157159', 'inDewpoint': 
>>>>> '54.71694388930514', 'inHumidity': '61', 'inTemp': '68.72', 'interval': 
>>>>> '5', 'maxSolarRad': '315.9994602721425', 'outHumidity': '85', 'outTemp': 
>>>>> '68.0', 'pressure': '28.058911365', 'rain': '0.0', 'rainRate': '0.0', 
>>>>> 'usUnits': '1', 'windchill': '68.0', 'windDir': 'None', 'windGust': 
>>>>> '0.0', 
>>>>> 'windGustDir': 'None', 'windrun': '0.0', 'windSpeed': '0.0'
>>>>> LOOP:   2025-08-24 08:51:41 EDT (1756039901) 'altimeter': 
>>>>> '30.029532326429237', 'appTemp': '72.82860931324616', 'barometer': 
>>>>> '29.98054422916703', 'cloudbase': '2930.511265697056', 'dateTime': 
>>>>> '1756039901', 'dewpoint': '63.49175043093296', 'ET': 'None', 'heatindex': 
>>>>> '68.69300000000001', 'humidex': '78.34213268284668', 'inDewpoint': 
>>>>> '54.71694388930514', 'inHumidity': '61', 'inTemp': '68.72', 
>>>>> 'inTempBatteryStatus': '0', 'maxSolarRad': '322.44979536500733', 
>>>>> 'outHumidity': '85', 'outTemp': '68.18', 'outTempBatteryStatus': '0', 
>>>>> 'pressure': '28.058911365', 'rain': 'None', 'rainBatteryStatus': '0', 
>>>>> 'rainRate': '0.0', 'rxCheckPercent': '100', 'usUnits': '1', 
>>>>> 'windBatteryStatus': '0', 'windchill': '68.18', 'windDir': 'None', 
>>>>> 'windGust': '0.0', 'windGustDir': 'None', 'windrun': 'None', 'windSpeed': 
>>>>> '0.0'
>>>>>
>>>>>
>>>>> On Saturday, August 23, 2025 at 7:11:17 PM UTC-4 [email protected] 
>>>>> wrote:
>>>>>
>>>>>> Unfortunately your LaCrosse model has been "retired" and from looking 
>>>>>> at a number of posts at wxforum.net it appears that your absolute 
>>>>>> pressure value is not user adjustable. Therefore, we can try using WeeWX 
>>>>>> to 
>>>>>> modify/re-calibrate your absolute pressure/pressure.
>>>>>>
>>>>>> Restore the station altitude back to 1865 ft  Try putting in a 
>>>>>> calibration offset of -1.79 inHg. in your weewx.conf file (see below). 
>>>>>> Restart WeeWX then run another LOOP to obtain the three pressures; 
>>>>>> "pressure", "altimeter" and "barometer" to see iif barometer and 
>>>>>> altimeter 
>>>>>> seem to be more accurate.  When you are comparing pressure values from 
>>>>>> your 
>>>>>> weather station  to an airport you must ensure tht both you and the 
>>>>>> airport  you are comparing with is in the same pressure system, i.e, the 
>>>>>> same high pressure or low pressure system, KPSK is considered to be a 
>>>>>> close-by airport 15 miles/25 km so chances are you should be in the same 
>>>>>> pressure system. Any other airport farther away gets a bit trickier.
>>>>>>
>>>>>> If you wish to read a bit more about barometer set-up, configuration 
>>>>>> and troubleshooting, check out the barometer wiki at 
>>>>>> www.barometer-wiki.ca/barometer. 
>>>>>>
>>>>>> Good luck!
>>>>>>
>>>>>> [StdCalibrate]       
>>>>>>     [[Corrections]]  
>>>>>>       pressure = pressure - 1.79
>>>>>>
>>>>>> On Friday, August 22, 2025 at 9:18:07 AM UTC-4 kufuu wrote:
>>>>>>
>>>>>>> Thanks
>>>>>>>
>>>>>>> On Friday, August 22, 2025 at 8:22:25 AM UTC-4 [email protected] 
>>>>>>> wrote:
>>>>>>>
>>>>>>>> EDIT: Sorry. I meant to say station pressure calculator not station 
>>>>>>>> elevation calculator
>>>>>>>> You can use this station pressure calculator: 
>>>>>>>> https://www.sensorsone.com/elevation-station-qfe-sea-level-qnh-pressure-calculator/?ab=1&v0=1865&f0=ft&f1=inHg0C&f2=inHg0C
>>>>>>>>
>>>>>>>> Note: This calculator uses aviation terms. QFE = station pressure 
>>>>>>>> and QNH = altimeter setting. I've already entered in your elevation. 
>>>>>>>> All 
>>>>>>>> you have to do is enter in the altimeter setting of your airport in 
>>>>>>>> the QNH 
>>>>>>>> input field and the calculator will calculate your QFE (station 
>>>>>>>> pressure).
>>>>>>>> ---
>>>>>>>>
>>>>>>>> On Thursday, August 21, 2025 at 2:49:01 PM UTC-4 [email protected] 
>>>>>>>> wrote:
>>>>>>>>
>>>>>>>>> Given:
>>>>>>>>>
>>>>>>>>> Aug 20 6:35 pm
>>>>>>>>>
>>>>>>>>> Altitude (true) = 1865 ft
>>>>>>>>> WeeWX altitude = 70 ft
>>>>>>>>> WeeWX altimeter= 29.86 inHg (rounded))
>>>>>>>>> WeeWX barometer = 29.85 inHg (rounded)
>>>>>>>>> WeeWX pressure = 29.78 inHg (rounded)
>>>>>>>>>
>>>>>>>>> NOTE: at altitude = 70 ft we are very close to sea level (altitude 
>>>>>>>>> = 0). As mentioned in my previous post, all three pressures 
>>>>>>>>> hypothetically, 
>>>>>>>>> should be the same at sea level. We can see that clearly happening at 
>>>>>>>>> the 
>>>>>>>>> 70 ft altitude where the readings start getting closer together.
>>>>>>>>>
>>>>>>>>> Aug 20 18:35 (from mesowest):
>>>>>>>>>
>>>>>>>>> KPSK elevation = 2106 ft
>>>>>>>>> KPSK pressure = 27.74
>>>>>>>>> KPSK altimeter = 29.95
>>>>>>>>>
>>>>>>>>> EXAMPLE station elevation calculation:
>>>>>>>>>
>>>>>>>>> LaCrosse true altitude = 1865 ft
>>>>>>>>> KPSK altimeter= 29.95 inHg
>>>>>>>>>
>>>>>>>>> Solving for LaCrosse "pressure" = 27.99 inHg
>>>>>>>>>
>>>>>>>>> As reported LaCrosse "pressure" = 29.78 inHg
>>>>>>>>>
>>>>>>>>> It looks like your current pressure of 29.78 is much too high.
>>>>>>>>>
>>>>>>>>> In order to calculate altimeter, at a location with a 1865 ft 
>>>>>>>>> altitude, your relative pressure on your console should always be 
>>>>>>>>> reading 
>>>>>>>>> 1.96 Hg higher than your current live absolute pressure ("pressure"). 
>>>>>>>>>
>>>>>>>>> To re-calibrate your display console:
>>>>>>>>>
>>>>>>>>> 1. Calculate your station pressure (follow the example above) and 
>>>>>>>>> then add 1.96 to this number to get your corrected relative pressure. 
>>>>>>>>> Modify the existing relative pressure in your display console.
>>>>>>>>> 2. Your pressure is wrong and you will have to fix it. I was 
>>>>>>>>> unable to find a way to modify your absolute pressure from your 
>>>>>>>>> manual. You 
>>>>>>>>> may have to contact LaCrosse and see how this may be done.
>>>>>>>>> 3. Alternatively, I believe there is a way to add a pressure 
>>>>>>>>> calibration offset in the WeeWX config file.
>>>>>>>>> 4. Once you fixed your absolute pressure and relative pressure,, 
>>>>>>>>> don'forget to put back your correct station altitude of 1865 ft.
>>>>>>>>> ---
>>>>>>>>>
>>>>>>>>> On Wednesday, August 20, 2025 at 7:11:02 PM UTC+4 kufuu wrote:
>>>>>>>>>
>>>>>>>>>> Correction , I have weewx set at 70ft elevation to try and match 
>>>>>>>>>> another weather station, sorry about that.
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> On Wednesday, August 20, 2025 at 6:50:00 PM UTC-4 kufuu wrote:
>>>>>>>>>>
>>>>>>>>>>> Im about 15 miles away
>>>>>>>>>>>
>>>>>>>>>>> On Wednesday, August 20, 2025 at 6:47:42 PM UTC-4 kufuu wrote:
>>>>>>>>>>>
>>>>>>>>>>>> My actual elevation is 1865ft , weewx is set to 0
>>>>>>>>>>>>
>>>>>>>>>>>> Using configuration file /etc/weewx/weewx.conf
>>>>>>>>>>>> REC:    2025-08-20 18:35:00 EDT (1755729300) 'altimeter': 
>>>>>>>>>>>> '29.856197863702114', 'appTemp': '84.16620032955495', 'barometer': 
>>>>>>>>>>>> '29.850973617639387', 'cloudbase': '1750.7310847902036', 
>>>>>>>>>>>> 'dateTime': 
>>>>>>>>>>>> '1755729300', 'dewpoint': '69.42478322692313', 'ET': 'None', 
>>>>>>>>>>>> 'heatindex': 
>>>>>>>>>>>> '77.86800000000002', 'humidex': '91.66911741879971', 'inDewpoint': 
>>>>>>>>>>>> '56.232061622715676', 'inHumidity': '56', 'inTemp': 
>>>>>>>>>>>> '72.86000000000001', 
>>>>>>>>>>>> 'interval': '5', 'maxSolarRad': '192.36417227192797', 
>>>>>>>>>>>> 'outHumidity': '78', 
>>>>>>>>>>>> 'outTemp': '76.82000000000002', 'pressure': '29.778039395', 
>>>>>>>>>>>> 'rain': '0.0', 
>>>>>>>>>>>> 'rainRate': '0.0', 'usUnits': '1', 'windchill': 
>>>>>>>>>>>> '76.82000000000002', 
>>>>>>>>>>>> 'windDir': 'None', 'windGust': '0.0', 'windGustDir': 'None', 
>>>>>>>>>>>> 'windrun': 
>>>>>>>>>>>> '0.0', 'windSpeed': '0.0'
>>>>>>>>>>>>
>>>>>>>>>>>> LOOP:   2025-08-20 18:35:44 EDT (1755729344) 'altimeter': 
>>>>>>>>>>>> '29.856197863702114', 'appTemp': '84.16620032955495', 'barometer': 
>>>>>>>>>>>> '29.850973617639387', 'cloudbase': '1750.7310847902036', 
>>>>>>>>>>>> 'dateTime': 
>>>>>>>>>>>> '1755729344', 'dewpoint': '69.42478322692313', 'ET': 'None', 
>>>>>>>>>>>> 'heatindex': 
>>>>>>>>>>>> '77.86800000000002', 'humidex': '91.66911741879971', 'inDewpoint': 
>>>>>>>>>>>> '56.232061622715676', 'inHumidity': '56', 'inTemp': 
>>>>>>>>>>>> '72.86000000000001', 
>>>>>>>>>>>> 'inTempBatteryStatus': '0', 'maxSolarRad': '189.6877965534115', 
>>>>>>>>>>>> 'outHumidity': '78', 'outTemp': '76.82000000000002', 
>>>>>>>>>>>> 'outTempBatteryStatus': '0', 'pressure': '29.778039395', 'rain': 
>>>>>>>>>>>> 'None', 
>>>>>>>>>>>> 'rainBatteryStatus': '0', 'rainRate': '0.0', 'rxCheckPercent': 
>>>>>>>>>>>> '100', 
>>>>>>>>>>>> 'usUnits': '1', 'windBatteryStatus': '0', 'windchill': 
>>>>>>>>>>>> '76.82000000000002', 
>>>>>>>>>>>> 'windDir': 'None', 'windGust': '0.0', 'windGustDir': 'None', 
>>>>>>>>>>>> 'windrun': 
>>>>>>>>>>>> 'None', 'windSpeed': '0.0'
>>>>>>>>>>>>
>>>>>>>>>>>> KPSK dublin VA
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>> *Current conditions at* Dublin / New River Valley (KPSK) 
>>>>>>>>>>>> *Lat: *37.13°N*Lon: *80.68°W*Elev: *2106ft. 
>>>>>>>>>>>>
>>>>>>>>>>>> Mostly Cloudy
>>>>>>>>>>>>
>>>>>>>>>>>> 76°F
>>>>>>>>>>>>
>>>>>>>>>>>> 24°C
>>>>>>>>>>>>
>>>>>>>>>>>> *Humidity* 
>>>>>>>>>>>> 76% 
>>>>>>>>>>>> *Wind Speed* 
>>>>>>>>>>>> E 7 mph 
>>>>>>>>>>>> *Barometer* 
>>>>>>>>>>>> 29.95 in 
>>>>>>>>>>>> *Dewpoint* 
>>>>>>>>>>>> 68°F (20°C) 
>>>>>>>>>>>> *Visibility* 
>>>>>>>>>>>> 10.00 mi 
>>>>>>>>>>>> *Heat Index*
>>>>>>>>>>>> 77°F (25°C) 
>>>>>>>>>>>> *Last update* 
>>>>>>>>>>>> 20 Aug 6:35 pm EDT 
>>>>>>>>>>>>
>>>>>>>>>>>> *More Information:*
>>>>>>>>>>>>
>>>>>>>>>>>> Local Forecast Office <https://www.weather.gov/rnk>More Local 
>>>>>>>>>>>> Wx 
>>>>>>>>>>>> <http://forecast.weather.gov/obslocal.php?warnzone=VAZ013&local_place=2%20Miles%20N%20Dublin%20VA&zoneid=EDT&offset=14400>3
>>>>>>>>>>>>  
>>>>>>>>>>>> Day History 
>>>>>>>>>>>> <http://forecast.weather.gov/data/obhistory/KPSK.html>Hourly 
>>>>>>>>>>>> Weather 
>>>>>>>>>>>> Forecast 
>>>>>>>>>>>> <https://forecast.weather.gov/MapClick.php?lat=37.1333&lon=-80.6833&unit=0&lg=english&FcstType=graphical>
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>> On Wednesday, August 20, 2025 at 6:00:53 PM UTC-4 
>>>>>>>>>>>> [email protected] wrote:
>>>>>>>>>>>>
>>>>>>>>>>>>> The three pressures on your LOOP was "altimeter", "barometer" 
>>>>>>>>>>>>> and "pressure".
>>>>>>>>>>>>> If you set station altitude = 0 then you are telling your 
>>>>>>>>>>>>> weather station's barometer that it is located at sea level.
>>>>>>>>>>>>> Therefore all three pressures shouldl read the same.
>>>>>>>>>>>>>
>>>>>>>>>>>>> "pressure" is just your local atmospheric pressure at your 
>>>>>>>>>>>>> location's altitude..
>>>>>>>>>>>>> "altimeter" is a sea level pressure that factors in your 
>>>>>>>>>>>>> altitude above sea level and "corrects" your local pressure 
>>>>>>>>>>>>> (station 
>>>>>>>>>>>>> pressure) and calculates an equivalent pressure at sea level.
>>>>>>>>>>>>> "barometer" is also a sea level pressure except it factors in 
>>>>>>>>>>>>> your station pressure "(pressure" in WeeWX) , local  temperature 
>>>>>>>>>>>>> and 
>>>>>>>>>>>>> humidity and "corrects" it to an equivalent pressure at sea 
>>>>>>>>>>>>> level. 
>>>>>>>>>>>>>
>>>>>>>>>>>>> I took a quick look at your weather station's manual and it 
>>>>>>>>>>>>> appears that your display console reads "relative pressure" only. 
>>>>>>>>>>>>> So in 
>>>>>>>>>>>>> your case if you set station altitude = 0 in WeeWX, WeeWX's SLP 
>>>>>>>>>>>>> correction 
>>>>>>>>>>>>> will calculate a correction = 0. It makes sense because you told 
>>>>>>>>>>>>> WeeWX you 
>>>>>>>>>>>>> are located at sea level so there is no need to correct your 
>>>>>>>>>>>>> "pressure" to 
>>>>>>>>>>>>> sea level - you are already at sea level! Therefore "pressure" = 
>>>>>>>>>>>>> "barometer" at sea level ( altitude = 0).
>>>>>>>>>>>>>
>>>>>>>>>>>>> I am not familiar with LaCrosse barometer operations- but I'll 
>>>>>>>>>>>>> try to help. Other LaCrosse owners can certainly jump in... 
>>>>>>>>>>>>>
>>>>>>>>>>>>> Things to check.
>>>>>>>>>>>>>
>>>>>>>>>>>>> 1. What have you entered as your station altitude in WeeWX? 
>>>>>>>>>>>>> Did you ensure that the station altitude you entered in WeeWX is 
>>>>>>>>>>>>> the 
>>>>>>>>>>>>> altitude of the barometric sensor (total height above sea level?) 
>>>>>>>>>>>>> How did 
>>>>>>>>>>>>> you calculate your station altitude?
>>>>>>>>>>>>>
>>>>>>>>>>>>> 2. Your weather station manual makes no mention of sea level 
>>>>>>>>>>>>> pressure calculations, entering an altitude or elevation in your 
>>>>>>>>>>>>> display 
>>>>>>>>>>>>> console.or using an offset. The manual implies that the console 
>>>>>>>>>>>>> only 
>>>>>>>>>>>>> displays relative pressure?  Can you confirm that?
>>>>>>>>>>>>>
>>>>>>>>>>>>> 3. How close are you to an official weather station at an 
>>>>>>>>>>>>> airport? Can you provide the ICAO code for it? Or the name of the 
>>>>>>>>>>>>> airport?
>>>>>>>>>>>>>
>>>>>>>>>>>>> 4. Your July 31 LOOP altimeter and barometer readings appear 
>>>>>>>>>>>>> to be unseasonably high for typical summertime weather. 
>>>>>>>>>>>>>
>>>>>>>>>>>>> 5. WeeWX is calculating altimeter correctly but WeeWX 
>>>>>>>>>>>>>  barometer seems high compared to the Starpath online SLP 
>>>>>>>>>>>>> calculator using 
>>>>>>>>>>>>> the same input parameters. WeeWX "barometer" should be close to 
>>>>>>>>>>>>> be the same 
>>>>>>>>>>>>> or less than "altimeter" at the temperatures you reported.
>>>>>>>>>>>>>
>>>>>>>>>>>>> 6. Does your weather station use PC software from the 
>>>>>>>>>>>>> manufacturer? If so, what is it reporting currently for absolute 
>>>>>>>>>>>>> pressure 
>>>>>>>>>>>>> and relative pressure? Can you adjust your absolute pressure?
>>>>>>>>>>>>>
>>>>>>>>>>>>> 7. Can you do another LOOP and give us the three pressures 
>>>>>>>>>>>>> (altimeter, barometer, and pressure)?
>>>>>>>>>>>>>
>>>>>>>>>>>>> At the same time you do a LOOP ,can you obtain the altimeter 
>>>>>>>>>>>>> setting of a close-by airport. And finally, can you obtain the 
>>>>>>>>>>>>> elevation of 
>>>>>>>>>>>>> that airport.
>>>>>>>>>>>>>
>>>>>>>>>>>>>  Summing up, we need: your station altitude, your weather 
>>>>>>>>>>>>> station's absolute pressure, relative pressure and the current 
>>>>>>>>>>>>> WeeWX LOOP 
>>>>>>>>>>>>> pressure values (altimeter, barometer, and pressure) and the LOOP 
>>>>>>>>>>>>> outside 
>>>>>>>>>>>>> temperature. In order to make some pressure comparisons and 
>>>>>>>>>>>>> accuracy 
>>>>>>>>>>>>> checks. We would also need , the name(s) of any close-by 
>>>>>>>>>>>>> airport(s) and how 
>>>>>>>>>>>>> close you are to these airports. lus we need the airport 
>>>>>>>>>>>>> altimeter setting 
>>>>>>>>>>>>> reading and elevation. As Tom mentioned in the wiki, you have to 
>>>>>>>>>>>>> be careful 
>>>>>>>>>>>>> about comparing your relative pressure on your display console 
>>>>>>>>>>>>> with the 
>>>>>>>>>>>>> WeeWX "barometer" calculation. They could be two different things.
>>>>>>>>>>>>>
>>>>>>>>>>>>> Michael's advice is I think, correct. You probably need to 
>>>>>>>>>>>>> re-calibrate or at least verify if your station pressure/absolute 
>>>>>>>>>>>>> value is 
>>>>>>>>>>>>> accurate.
>>>>>>>>>>>>>
>>>>>>>>>>>>> On Wednesday, August 20, 2025 at 1:33:38 AM UTC+4 
>>>>>>>>>>>>> [email protected] wrote:
>>>>>>>>>>>>>
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> Which obs_type "reads what is on the display", when altitude 
>>>>>>>>>>>>>> is set to 0? pressure, altimeter or barometer or all three? (It 
>>>>>>>>>>>>>> should be 
>>>>>>>>>>>>>> all three) When setting your altitude, pressure should always 
>>>>>>>>>>>>>> "read what is 
>>>>>>>>>>>>>> on the display", altimeter and barometer will change with the 
>>>>>>>>>>>>>> altitude you 
>>>>>>>>>>>>>> configure.
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> You should calibrate your station to the real pressure 
>>>>>>>>>>>>>> provided by a reliable station near you, which is located at the 
>>>>>>>>>>>>>> same 
>>>>>>>>>>>>>> altitude. Then configure the altitude of the station in weewx, 
>>>>>>>>>>>>>> then choose 
>>>>>>>>>>>>>> the obs_types you want to have displayed in your report. 
>>>>>>>>>>>>>> Depending on what 
>>>>>>>>>>>>>> you choose, the may or may not  "read what is on the display", 
>>>>>>>>>>>>>> which is 
>>>>>>>>>>>>>> perfectly fine for altimeter and barometer.
>>>>>>>>>>>>>> kufuu schrieb am Dienstag, 19. August 2025 um 21:09:21 UTC+2:
>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> If I put 0 altitude in weewx config then it reads what is on 
>>>>>>>>>>>>>>> the display, is there any way to correct or just leave it 0 ? 
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> On Thursday, July 31, 2025 at 9:29:40 AM UTC-4 kufuu wrote:
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> It can wait till then and good luck, 
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> On Thursday, July 31, 2025 at 9:06:30 AM UTC-4 kufuu wrote:
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>> Let me redo this and put the dates in order,
>>>>>>>>>>>>>>>>> LOOP:   2025-07-31 08:45:20 EDT (1753965920) 'altimeter': 
>>>>>>>>>>>>>>>>> '31.994965595814566', 'appTemp': '82.83203424777768', 
>>>>>>>>>>>>>>>>> 'barometer': 
>>>>>>>>>>>>>>>>> '31.942483641883886', 'cloudbase': '2805.6732703464695', 
>>>>>>>>>>>>>>>>> 'dateTime': 
>>>>>>>>>>>>>>>>> '1753965920', 'dewpoint': '70.70103761047554', 'ET': 'None', 
>>>>>>>>>>>>>>>>> 'heatindex': 
>>>>>>>>>>>>>>>>> '76.113', 'humidex': '90.81599237942409', 'inDewpoint': 
>>>>>>>>>>>>>>>>> '55.52280883736111', 'inHumidity': '58', 'inTemp': '71.06', 
>>>>>>>>>>>>>>>>> 'inTempBatteryStatus': '0', 'maxSolarRad': 
>>>>>>>>>>>>>>>>> '357.687499228319', 
>>>>>>>>>>>>>>>>> 'outHumidity': '87', 'outTemp': '74.84', 
>>>>>>>>>>>>>>>>> 'outTempBatteryStatus': '0', 
>>>>>>>>>>>>>>>>> 'pressure': '29.919783335', 'rain': '0.0', 
>>>>>>>>>>>>>>>>> 'rainBatteryStatus': '0', 
>>>>>>>>>>>>>>>>> 'rainRate': '0.0', 'rxCheckPercent': '100', 'usUnits': '1', 
>>>>>>>>>>>>>>>>> 'windBatteryStatus': '0', 'windchill': '74.84', 'windDir': 
>>>>>>>>>>>>>>>>> 'None', 
>>>>>>>>>>>>>>>>> 'windGust': '0.0', 'windGustDir': 'None', 'windrun': 'None', 
>>>>>>>>>>>>>>>>> 'windSpeed': 
>>>>>>>>>>>>>>>>> '0.0'
>>>>>>>>>>>>>>>>> REC:    2025-07-31 08:45:00 EDT (1753965900) 'altimeter': 
>>>>>>>>>>>>>>>>> '31.994965595814566', 'appTemp': '82.83203424777768', 
>>>>>>>>>>>>>>>>> 'barometer': 
>>>>>>>>>>>>>>>>> '31.942483641883886', 'cloudbase': '2805.6732703464695', 
>>>>>>>>>>>>>>>>> 'dateTime': 
>>>>>>>>>>>>>>>>> '1753965900', 'dewpoint': '70.70103761047554', 'ET': 'None', 
>>>>>>>>>>>>>>>>> 'heatindex': 
>>>>>>>>>>>>>>>>> '76.113', 'humidex': '90.81599237942409', 'inDewpoint': 
>>>>>>>>>>>>>>>>> '55.52280883736111', 'inHumidity': '58.0', 'inTemp': '71.06', 
>>>>>>>>>>>>>>>>> 'inTempBatteryStatus': '0.0', 'interval': '5.0', 
>>>>>>>>>>>>>>>>> 'maxSolarRad': 
>>>>>>>>>>>>>>>>> '351.7781598061274', 'outHumidity': '87.0', 'outTemp': 
>>>>>>>>>>>>>>>>> '74.84', 
>>>>>>>>>>>>>>>>> 'outTempBatteryStatus': '0.0', 'pressure': '29.919783335', 
>>>>>>>>>>>>>>>>> 'rain': '0.0', 
>>>>>>>>>>>>>>>>> 'rainBatteryStatus': '0.0', 'rainRate': '0.0', 
>>>>>>>>>>>>>>>>> 'rxCheckPercent': '97.5', 
>>>>>>>>>>>>>>>>> 'usUnits': '1', 'windBatteryStatus': '0.0', 'windchill': 
>>>>>>>>>>>>>>>>> '74.84', 
>>>>>>>>>>>>>>>>> 'windDir': 'None', 'windGust': '0.0', 'windGustDir': 'None', 
>>>>>>>>>>>>>>>>> 'windrun': 
>>>>>>>>>>>>>>>>> '0.0', 'windSpeed': '0.0'
>>>>>>>>>>>>>>>>> Traceback (most recent call last):
>>>>>>>>>>>>>>>>>   File "/usr/share/weewx/weewx/reportengine.py", line 248, 
>>>>>>>>>>>>>>>>> in run
>>>>>>>>>>>>>>>>>     obj.start()
>>>>>>>>>>>>>>>>>   File "/usr/share/weewx/weewx/reportengine.py", line 465, 
>>>>>>>>>>>>>>>>> in start
>>>>>>>>>>>>>>>>>     self.run()
>>>>>>>>>>>>>>>>>   File "/usr/share/weewx/weewx/reportengine.py", line 621, 
>>>>>>>>>>>>>>>>> in run
>>>>>>>>>>>>>>>>>     ncopy += weeutil.weeutil.deep_copy_path(path, 
>>>>>>>>>>>>>>>>> html_dest_dir)
>>>>>>>>>>>>>>>>>   File "/usr/share/weewx/weeutil/weeutil.py", line 1811, 
>>>>>>>>>>>>>>>>> in deep_copy_path
>>>>>>>>>>>>>>>>>     shutil.copy(path, d)
>>>>>>>>>>>>>>>>>   File "/usr/lib/python3.9/shutil.py", line 418, in copy
>>>>>>>>>>>>>>>>>     copyfile(src, dst, follow_symlinks=follow_symlinks)
>>>>>>>>>>>>>>>>>   File "/usr/lib/python3.9/shutil.py", line 264, in 
>>>>>>>>>>>>>>>>> copyfile
>>>>>>>>>>>>>>>>>     with open(src, 'rb') as fsrc, open(dst, 'wb') as fdst:
>>>>>>>>>>>>>>>>> PermissionError: [Errno 13] Permission denied: 
>>>>>>>>>>>>>>>>> '/var/www/html/weewx/seasons.css'
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>

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