Hello Tom, I've posted above a link to the exact date I was comparing: https://www.wunderground.com/dashboard/pws/I5302/table/2023-09-16/2023-09-16/daily
You can see there on September 16, 2023 the total precipitation is 9.14 mm whereas WeeWx is showing "Today's Rain: 59,2mm" Here's also the PWS link for the same date: https://www.pwsweather.com/station/pws/dolniokol?timespan=day&date=2023-09-16 It's showing a total of 9.1mm If we look for the month of December: PWS shows total of 41.7mm https://www.pwsweather.com/station/pws/dolniokol?timespan=month&date=2023-12-01 WU shows a total of 41.67mm https://www.wunderground.com/dashboard/pws/I5302/graph/2023-12-7/2023-12-7/monthly However if I look at the weewx report it's over 100mm: MONTHLY CLIMATOLOGICAL SUMMARY for Dec 2023 NAME: Dolni Okol ELEV: 1010 meters LAT: 42-29.40 N LONG: 023-29.70 E TEMPERATURE (C), RAIN (mm), WIND SPEED (m/s) HEAT COOL AVG MEAN DEG DEG WIND DOM DAY TEMP HIGH TIME LOW TIME DAYS DAYS RAIN SPEED HIGH TIME DIR ---------------------------------------------------------------------------------------- 01 9.4 14.7 13:30 -1.1 00:18 8.6 0.0 0.0 0.6 6.6 11:58 326 02 7.6 17.5 15:23 2.7 20:58 10.4 0.0 0.0 0.1 3.3 14:38 325 03 4.9 12.0 00:26 -2.0 23:56 13.1 0.0 13.2 0.1 3.3 13:02 33 04 -2.3 11.7 15:39 -6.3 07:48 20.3 0.0 0.0 0.0 2.3 03:53 117 05 -0.8 1.4 14:51 -2.5 07:23 18.8 0.0 0.0 0.0 1.4 11:35 303 06 0.7 1.3 14:03 -0.1 00:00 17.3 0.0 0.4 0.0 0.6 02:03 307 07 0.3 3.7 11:02 -2.0 23:16 17.7 0.0 0.0 0.1 3.0 13:48 56 08 -2.3 -0.9 13:18 -3.8 22:07 20.3 0.0 0.0 0.0 0.0 00:00 90 09 -2.1 1.0 14:38 -4.4 05:04 20.1 0.0 0.0 0.0 0.9 14:42 161 10 -0.8 10.6 15:17 -4.0 05:44 18.8 0.0 4.0 0.0 2.3 13:02 316 11 0.3 7.2 14:56 -3.6 07:52 17.7 0.0 0.8 0.0 2.0 12:04 138 12 3.8 13.6 15:35 0.1 21:58 14.2 0.0 0.8 0.0 3.0 05:10 14 13 3.2 11.1 14:28 0.4 04:02 14.8 0.0 0.0 0.0 1.2 15:36 302 14 5.7 11.7 10:36 0.6 02:20 12.3 0.0 7.2 0.1 3.1 04:20 41 15 1.1 2.1 03:06 -0.7 23:56 16.9 0.0 42.0 0.0 2.8 05:17 56 16 -2.0 -0.5 13:54 -3.7 23:59 20.0 0.0 0.0 0.0 0.0 00:00 90 17 -5.7 0.5 13:58 -10.5 07:32 23.7 0.0 0.0 0.0 0.0 00:00 90 18 -3.0 9.9 15:34 -8.1 01:40 21.0 0.0 18.8 0.0 0.0 00:00 90 19 -0.9 12.1 15:20 -4.6 07:04 18.9 0.0 4.8 0.0 0.0 00:00 90 20 1.4 9.2 15:04 -5.2 06:31 16.6 0.0 5.2 0.1 2.6 16:48 315 21 1.0 10.6 15:13 -3.5 20:04 17.0 0.0 0.8 0.1 2.5 22:09 47 22 1.9 3.7 03:57 0.1 23:01 16.1 0.0 4.0 0.2 4.4 00:41 320 23 2.4 5.3 11:23 -0.5 17:43 15.6 0.0 0.8 0.3 4.5 21:58 348 24 6.4 13.5 15:33 3.1 06:08 11.6 0.0 0.0 0.2 4.2 16:06 337 25 8.7 17.6 15:33 2.6 23:45 9.3 0.0 0.0 0.2 3.2 14:08 331 26 6.8 16.6 15:18 -0.3 05:13 11.2 0.0 0.0 0.1 2.2 09:18 330 27 4.3 16.0 15:26 -1.4 23:57 13.7 0.0 0.0 0.0 2.8 01:21 51 28 2.6 18.6 15:55 -2.7 07:19 15.4 0.0 0.0 0.1 2.3 14:41 169 29 2.7 15.1 15:49 -2.0 05:40 15.3 0.0 0.0 0.0 2.0 13:05 162 30 1.9 8.7 13:26 -2.4 04:34 16.1 0.0 0.0 0.1 2.7 14:40 35 31 2.3 15.5 15:20 -1.2 08:30 15.7 0.0 0.0 0.0 1.8 11:30 177 ---------------------------------------------------------------------------------------- 2.0 18.6 28 -10.5 17 498.6 0.0 102.8 0.1 6.6 01 342 Even though I know nothing I have the gut feeling the WS6in1 driver for Bresser doesn't handle well buffered data or the station itself passes on buffered data wrongly (but in either case PWS and WU discard those values)?! Also so sorry for the late reply here as well. Thanks, Ivo On Thursday, September 21, 2023 at 2:45:20 AM UTC+3 Tom Keffer wrote: No. That's not enough clues to narrow it down. But, you say the "spike" is in the database, but not being uploaded to PWS or Wunderground? Can you post your station ID for either/both? -- 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 weewx-user+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/weewx-user/ff31b148-8915-4284-8585-b4e0cfdcf1c8n%40googlegroups.com.