You didn't mention that you have an MQTT intermediary. Most likely whatever is receiving the MQTT packets is mapping type "barometer_inHg" to the WeeWX observation type "barometer." They both have roughly the same value.
So, either your console is, in fact, reading gauge pressure (not sea-level pressure), which would explain why it's lower, or whatever is generating your MQTT packets is mapping values to the wrong MQTT types. Are you POSITIVE that the console is showing sea-level pressure? Unless the LaCrosse knows something about altitude, it's probably showing gauge pressure (possibly with a correction value). If you are positive, then look at whatever is generating the MQTT packets. It's getting the values wrong. -tk On Friday, July 25, 2025 at 1:45:21 PM UTC-7 [email protected] wrote: > weewx script > > Jul 25 15:55:47 weewx-weather weewx[2911] DEBUG user.mqtt: data: > {'dateTime': '1753473300.0', 'inTemp_F': '73.58000000000001', 'inHumidity': > '54.0', 'outTemp_F': '87.07999999999998', 'outHumidity': '66.0', > 'pressure_inHg': '29.99951430125', 'rain_in': '0.0', 'windSpeed_mph': > '0.44738837038786095', 'windDir': '22.5', 'windGust_mph': > '1.3421651111635826', 'windGustDir': '22.5', 'interval_minute': '5.0', > 'usUnits': '1.0', 'altimeter_inHg': '32.08486850330134', 'appTemp_F': > '96.78463511145246', 'barometer_inHg': '31.986219029757965', > 'cloudbase_foot': '4771.9496637540215', 'dewpoint_F': '74.31142147948229', > 'heatindex_F': '95.85380134124786', 'humidex_F': '106.47314915297711', > 'inDewpoint_F': '55.89516079858936', 'rainRate_inch_per_hour': '0.0', > 'windchill_F': '87.07999999999998', 'windrun_mile': '0.037282364198988414', > 'hourRain_in': '0.0', 'rain24_in': '0.050787401574803145', 'dayRain_in': > '0.04062992125984252'} > > > On Friday, July 25, 2025 at 3:14:59 PM UTC-4 Tom Keffer wrote: > >> See the wiki article on atmospheric pressure >> <https://github.com/weewx/weewx/wiki/Barometer,-pressure,-and-altimeter>. >> It's possible that your station is reporting "gauge" temperature. WeeWX >> reports pressure corrected to sea level. >> >> If you're convinced that you're comparing the same type of pressure, then >> check the entry for altitude. >> >> -tk >> >> On Fri, Jul 25, 2025 at 11:21 AM kufuu <[email protected]> wrote: >> >>> I just purchased an old but never used La Crosse WS2813u-it weather >>> station with weewx 4.10.2 and the Barometric pressure is much higher on >>> weewx than on the console, any thoughts ? >>> >>> -- >>> You received this message because you are subscribed to the Google >>> Groups "weewx-user" group. >>> To unsubscribe from this group and stop receiving emails from it, send >>> an email to [email protected]. >>> To view this discussion visit >>> https://groups.google.com/d/msgid/weewx-user/fde00adc-8b99-4294-8cea-939e97b5a8a2n%40googlegroups.com >>> >>> <https://groups.google.com/d/msgid/weewx-user/fde00adc-8b99-4294-8cea-939e97b5a8a2n%40googlegroups.com?utm_medium=email&utm_source=footer> >>> . >>> >> -- You received this message because you are subscribed to the Google Groups "weewx-user" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion visit https://groups.google.com/d/msgid/weewx-user/d1b2dc3a-e791-4f07-8764-57d95020c27en%40googlegroups.com.
