Thompson Falls Weather in December
Average highs run from 36°F on December 1 to 32°F on December 31, and lows from 27°F to 24°F. Normal precipitation for the month is 2.31 in over about 17 wet days.
December day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
December at a glance
- Average high
- 33°F
- Average low
- 25°F
- Precipitation
- 2.31 in
- Snowfall
- 7.5 in
- Record high
- 46°FDec 10, 2014
- Record low
- -21°FDec 22, 2022
- Chance of a freeze
- 100%
- Daylight
- 8 h 43 min to 8 h 30 min
- Cloud cover
- 74%
- Humidity
- 97%
- Dew point
- 19°F
- Wind
- 4.7 mph
Every day of the month
A wet day has at least 0.01 inch of precipitation; snow means at least 0.1 inch of snowfall.
| Date | Normal high | Normal low | Record high | Record low | Chance wet | Chance of snow |
|---|---|---|---|---|---|---|
| Dec 1 | 36°F | 27°F | 44°F 2021 | 4°F 2014 | 57% | 9% |
| Dec 2 | 35°F | 26°F | 43°F 2021 | 7°F 2013 | 57% | 10% |
| Dec 3 | 35°F | 26°F | 40°F 1941 | -3°F 2013 | 56% | 10% |
| Dec 4 | 35°F | 26°F | 39°F 2024 | -3°F 2013 | 56% | 10% |
| Dec 5 | 34°F | 26°F | 42°F 2020 | -8°F 1956 | 56% | 10% |
| Dec 6 | 34°F | 26°F | 40°F 2023 | -12°F 2009 | 56% | 10% |
| Dec 7 | 34°F | 25°F | 39°F 1938 | -13°F 2009 | 56% | 10% |
| Dec 8 | 34°F | 25°F | 45°F 2020 | -12°F 2009 | 56% | 10% |
| Dec 9 | 34°F | 25°F | 42°F 1957 | -9°F 2009 | 56% | 10% |
| Dec 10 | 33°F | 25°F | 46°F 2014 | 2°F 2009 | 56% | 11% |
| Dec 11 | 33°F | 25°F | 46°F 2017 | 1°F 2000 | 56% | 11% |
| Dec 12 | 33°F | 25°F | 42°F 2014 | -1°F 2000 | 56% | 11% |
| Dec 13 | 33°F | 25°F | 40°F 1952 | -11°F 2008 | 56% | 11% |
| Dec 14 | 33°F | 24°F | 45°F 1952 | -14°F 2008 | 56% | 11% |
| Dec 15 | 33°F | 24°F | 41°F 1952 | -13°F 2008 | 56% | 11% |
| Dec 16 | 32°F | 24°F | 38°F 1941 | -8°F 2008 | 56% | 11% |
| Dec 17 | 32°F | 24°F | 38°F 1943 | -8°F 2016 | 56% | 11% |
| Dec 18 | 32°F | 24°F | 41°F 1954 | -9°F 1998 | 56% | 11% |
| Dec 19 | 32°F | 24°F | 40°F 1954 | -17°F 1998 | 56% | 11% |
| Dec 20 | 32°F | 24°F | 40°F 2003 | -20°F 1998 | 56% | 11% |
| Dec 21 | 32°F | 24°F | 41°F 2024 | -17°F 2022 | 56% | 11% |
| Dec 22 | 32°F | 24°F | 41°F 1940 | -21°F 2022 | 56% | 11% |
| Dec 23 | 32°F | 24°F | 38°F 1950 | -13°F 2022 | 56% | 11% |
| Dec 24 | 32°F | 24°F | 40°F 1950 | -6°F 1948 | 56% | 11% |
| Dec 25 | 32°F | 24°F | 42°F 1947 | 1°F 1996 | 56% | 12% |
| Dec 26 | 32°F | 24°F | 43°F 1947 | -1°F 1996 | 56% | 12% |
| Dec 27 | 32°F | 24°F | 43°F 1999 | 1°F 2025 | 56% | 12% |
| Dec 28 | 32°F | 24°F | 44°F 1956 | 0°F 1946 | 56% | 12% |
| Dec 29 | 32°F | 24°F | 46°F 1956 | -5°F 2014 | 57% | 12% |
| Dec 30 | 32°F | 24°F | 45°F 2023 | -8°F 2014 | 57% | 12% |
| Dec 31 | 32°F | 24°F | 38°F 1996 | -14°F 1941 | 57% | 12% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (MST).
- December 1
- sunrise 8:09 AM, sunset 4:52 PM
- December 31
- sunrise 8:30 AM, sunset 5:00 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00248211 (Thompson Falls Ph), public domain. Records: NOAA GHCN-Daily, station USW00024154, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-25. Sun and moon: computed with the NOAA solar equations and Meeus.