Willmar Weather in December
Average highs run from 32°F on December 1 to 22°F on December 31, and lows from 16°F to 6°F. Normal precipitation for the month is 0.84 in over about 7 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
- 26°F
- Average low
- 10°F
- Precipitation
- 0.84 in
- Snowfall
- 10.1 in
- Record high
- 64°FDec 6, 1939
- Record low
- -35°FDec 13, 1917
- Chance of a freeze
- 100%
- Daylight
- 9 h 01 min to 8 h 49 min
- Cloud cover
- 65%
- Humidity
- 87%
- Dew point
- 15°F
- Wind
- 11.4 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 | 32°F | 16°F | 58°F 1962 | -19°F 1893 | 19% | 15% |
| Dec 2 | 32°F | 16°F | 61°F 1998 | -16°F 1976 | 20% | 15% |
| Dec 3 | 31°F | 15°F | 59°F 1941 | -23°F 1940 | 20% | 15% |
| Dec 4 | 31°F | 15°F | 60°F 1998 | -16°F 1978 | 20% | 15% |
| Dec 5 | 30°F | 14°F | 48°F 1939 | -15°F 1991 | 20% | 16% |
| Dec 6 | 30°F | 14°F | 64°F 1939 | -20°F 1972 | 20% | 16% |
| Dec 7 | 30°F | 13°F | 53°F 1939 | -22°F 1936 | 20% | 16% |
| Dec 8 | 29°F | 13°F | 56°F 1939 | -23°F 1976 | 20% | 16% |
| Dec 9 | 29°F | 12°F | 59°F 1939 | -17°F 1927 | 20% | 16% |
| Dec 10 | 28°F | 12°F | 53°F 2006 | -20°F 1917 | 20% | 17% |
| Dec 11 | 28°F | 12°F | 49°F 2002 | -24°F 1936 | 20% | 17% |
| Dec 12 | 28°F | 11°F | 50°F 1939 | -17°F 1893 | 20% | 17% |
| Dec 13 | 27°F | 11°F | 49°F 1921 | -35°F 1917 | 20% | 17% |
| Dec 14 | 27°F | 10°F | 49°F 1894 | -33°F 1901 | 21% | 17% |
| Dec 15 | 26°F | 10°F | 55°F 1998 | -26°F 1901 | 21% | 18% |
| Dec 16 | 26°F | 10°F | 57°F 1939 | -20°F 1932 | 21% | 18% |
| Dec 17 | 26°F | 9°F | 49°F 1939 | -26°F 1953 | 21% | 18% |
| Dec 18 | 25°F | 9°F | 48°F 1962 | -24°F 1916 | 21% | 18% |
| Dec 19 | 25°F | 9°F | 45°F 1894 | -34°F 1983 | 21% | 18% |
| Dec 20 | 25°F | 8°F | 47°F 1956 | -31°F 1916 | 21% | 18% |
| Dec 21 | 25°F | 8°F | 45°F 1979 | -34°F 1916 | 21% | 19% |
| Dec 22 | 24°F | 8°F | 45°F 1979 | -25°F 1989 | 21% | 19% |
| Dec 23 | 24°F | 8°F | 44°F 1986 | -29°F 1983 | 21% | 19% |
| Dec 24 | 24°F | 7°F | 43°F 1928 | -27°F 1983 | 21% | 19% |
| Dec 25 | 23°F | 7°F | 47°F 1922 | -21°F 1996 | 21% | 19% |
| Dec 26 | 23°F | 7°F | 46°F 1959 | -27°F 1996 | 21% | 19% |
| Dec 27 | 23°F | 7°F | 48°F 1928 | -26°F 1924 | 21% | 19% |
| Dec 28 | 23°F | 6°F | 46°F 1898 | -28°F 1924 | 21% | 19% |
| Dec 29 | 22°F | 6°F | 43°F 1897 | -29°F 1917 | 21% | 19% |
| Dec 30 | 22°F | 6°F | 55°F 1999 | -26°F 1976 | 21% | 19% |
| Dec 31 | 22°F | 6°F | 50°F 2004 | -27°F 1976 | 21% | 19% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (CST).
- December 1
- sunrise 7:39 AM, sunset 4:40 PM
- December 31
- sunrise 7:59 AM, sunset 4:48 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00219004 (Willmar Wwtp), public domain. Records: NOAA GHCN-Daily, station USC00219004, 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 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.