Thief River Falls Weather in December
Average highs run from 27°F on December 1 to 15°F on December 31, and lows from 11°F to -1°F.
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
- 20°F
- Average low
- 5°F
- Snowfall
- 12.4 in
- Record high
- 56°FDec 1, 1962
- Record low
- -43°FDec 19, 1955
- Chance of a freeze
- 100%
- Daylight
- 8 h 39 min to 8 h 26 min
- Cloud cover
- 67%
- Humidity
- 90%
- Dew point
- 10°F
- Wind
- 11.2 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 | 27°F | 11°F | 56°F 1962 | -24°F 1919 | 22% | |
| Dec 2 | 26°F | 10°F | 55°F 1982 | -25°F 1978 | 23% | |
| Dec 3 | 26°F | 10°F | 56°F 1941 | -22°F 1940 | 23% | |
| Dec 4 | 25°F | 10°F | 55°F 1941 | -19°F 1991 | 24% | |
| Dec 5 | 25°F | 9°F | 49°F 1988 | -23°F 1955 | 24% | |
| Dec 6 | 24°F | 9°F | 52°F 1939 | -28°F 1972 | 25% | |
| Dec 7 | 24°F | 8°F | 52°F 1939 | -27°F 1936 | 25% | |
| Dec 8 | 23°F | 8°F | 53°F 2023 | -30°F 1922 | 25% | |
| Dec 9 | 23°F | 7°F | 52°F 1990 | -26°F 1927 | 26% | |
| Dec 10 | 23°F | 7°F | 45°F 1939 | -30°F 1977 | 26% | |
| Dec 11 | 22°F | 6°F | 51°F 1928 | -27°F 1945 | 26% | |
| Dec 12 | 22°F | 6°F | 49°F 1939 | -24°F 1917 | 26% | |
| Dec 13 | 21°F | 6°F | 42°F 1959 | -31°F 1917 | 27% | |
| Dec 14 | 21°F | 5°F | 45°F 2002 | -31°F 1916 | 27% | |
| Dec 15 | 20°F | 5°F | 42°F 1939 | -33°F 1919 | 27% | |
| Dec 16 | 20°F | 4°F | 51°F 1939 | -32°F 1953 | 27% | |
| Dec 17 | 20°F | 4°F | 46°F 1939 | -28°F 1916 | 28% | |
| Dec 18 | 19°F | 4°F | 48°F 1923 | -38°F 1929 | 28% | |
| Dec 19 | 19°F | 3°F | 47°F 1923 | -43°F 1955 | 28% | |
| Dec 20 | 18°F | 3°F | 48°F 1923 | -39°F 1924 | 28% | |
| Dec 21 | 18°F | 3°F | 44°F 1923 | -33°F 1963 | 28% | |
| Dec 22 | 18°F | 2°F | 41°F 2003 | -30°F 1945 | 28% | |
| Dec 23 | 17°F | 2°F | 53°F 2023 | -32°F 1951 | 28% | |
| Dec 24 | 17°F | 1°F | 46°F 1957 | -29°F 1914 | 28% | |
| Dec 25 | 17°F | 1°F | 41°F 1928 | -36°F 1933 | 28% | |
| Dec 26 | 16°F | 1°F | 43°F 1994 | -38°F 1933 | 29% | |
| Dec 27 | 16°F | 1°F | 47°F 2011 | -31°F 1924 | 29% | |
| Dec 28 | 16°F | 0°F | 38°F 1931 | -39°F 1933 | 29% | |
| Dec 29 | 15°F | 0°F | 39°F 1929 | -34°F 1917 | 29% | |
| Dec 30 | 15°F | 0°F | 42°F 1999 | -35°F 1976 | 28% | |
| Dec 31 | 15°F | -1°F | 38°F 1929 | -37°F 1967 | 28% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (CST).
- December 1
- sunrise 7:54 AM, sunset 4:33 PM
- December 31
- sunrise 8:15 AM, sunset 4:41 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00218247 (Thief Rvr Falls 2), public domain. Records: NOAA GHCN-Daily, station USC00216787, 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.