Monthly Climatological Summary — Windham, Maine
Month
December
Year
2025
Station ID / Name
Windham
Observer / Organization
WO1J
Monthly Summary — Temperatures
All values entered manually each month
Metric Value Unit Departure from normal Date / Notes
Mean Maximum Temperature 31.3 °F — Entry
Mean Minimum Temperature 15.5 °F — Entry
Mean Temperature 24.1 °F Above / -4.1 Entry
Highest Temperature 53.6 °F — Date: Dec. 19
Lowest Temperature -2.5 °F — Date: Dec. 9
Monthly Summary — Precipitation
Totals and Departures entered manually
Metric Value Unit Departure from normal Date / Notes
Total Precipitation 3.93 in Above / -0.66 Normal reference: NWS/GYX
Maximum Daily Precipitation 1.64 in — Date: Dec. 29
Total Snow Accumulation 18.7 in —
Maximum Daily Snowfall 9.5 in — Date: Dec. 24
Monthly Summary — Wind
Speeds and direction entered manually
Metric Value Unit Prevailing direction Date / Notes
Average Wind Speed 3.5 mph NW Direction reference period: [Enter]
Maximum Wind Speed 44.0 mph Date: Dec. 4
Year-To-Date Summary (cumulative)
Enter values manually; use same references for normals
Metric Value Unit Departure from normal Notes
Mean Maximum Temperature (YTD) 56.8 °F — Normal reference: Station Data
Mean Minimum Temperature (YTD) 38.1 °F — Normal reference: Station Data
Mean Temperature (YTD) 47.0 °F +0.5 / Below Normal reference: NWS/GYX
Total Precipitation (YTD) 39.55 in Above / -10.59 Normal reference: NWS/GYX
Average Wind Speed (YTD) 2.9 mph — Prevailing direction (YTD): NW
Maximum Wind Speed (YTD) 45.0 mph — Date & direction: Jan. 09 & Nov. 04
Observer notes
Events, instrumentation remarks, outages, adjustments