Siren Weather in December
Average highs run from 33°F on December 1 to 23°F on December 31, and lows from 15°F to 4°F. Normal precipitation for the month is 1.37 in over about 9 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
- 27°F
- Average low
- 10°F
- Precipitation
- 1.37 in
- Snowfall
- 11.9 in
- Record high
- 58°FDec 3, 1962
- Record low
- -44°FDec 19, 1955
- Chance of a freeze
- 100%
- Daylight
- 8 h 57 min to 8 h 44 min
- Cloud cover
- 67%
- Humidity
- 90%
- Dew point
- 13°F
- Wind
- 10.1 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 | 33°F | 15°F | 56°F 1962 | -18°F 1978 | 28% | 19% |
| Dec 2 | 32°F | 15°F | 57°F 1982 | -26°F 1976 | 28% | 20% |
| Dec 3 | 32°F | 15°F | 58°F 1962 | -29°F 1927 | 28% | 20% |
| Dec 4 | 31°F | 14°F | 58°F 1962 | -15°F 1950 | 28% | 21% |
| Dec 5 | 31°F | 14°F | 55°F 1948 | -24°F 1955 | 28% | 21% |
| Dec 6 | 31°F | 13°F | 57°F 2001 | -28°F 1926 | 28% | 21% |
| Dec 7 | 30°F | 13°F | 49°F 1939 | -32°F 1976 | 28% | 21% |
| Dec 8 | 30°F | 12°F | 48°F 1939 | -27°F 1976 | 28% | 22% |
| Dec 9 | 29°F | 12°F | 57°F 1939 | -35°F 1927 | 28% | 22% |
| Dec 10 | 29°F | 12°F | 50°F 1990 | -27°F 1927 | 28% | 22% |
| Dec 11 | 29°F | 11°F | 47°F 1946 | -35°F 1936 | 28% | 22% |
| Dec 12 | 28°F | 11°F | 52°F 1943 | -25°F 1955 | 29% | 22% |
| Dec 13 | 28°F | 11°F | 47°F 1998 | -24°F 1940 | 29% | 23% |
| Dec 14 | 28°F | 10°F | 47°F 1998 | -27°F 1926 | 29% | 23% |
| Dec 15 | 27°F | 10°F | 52°F 1998 | -25°F 1961 | 29% | 23% |
| Dec 16 | 27°F | 9°F | 48°F 1939 | -34°F 1932 | 29% | 23% |
| Dec 17 | 27°F | 9°F | 48°F 1939 | -25°F 1983 | 29% | 23% |
| Dec 18 | 26°F | 9°F | 50°F 1931 | -34°F 1983 | 29% | 24% |
| Dec 19 | 26°F | 8°F | 53°F 1923 | -44°F 1955 | 29% | 24% |
| Dec 20 | 26°F | 8°F | 45°F 1923 | -35°F 1983 | 29% | 24% |
| Dec 21 | 25°F | 8°F | 49°F 1967 | -27°F 1921 | 29% | 24% |
| Dec 22 | 25°F | 7°F | 46°F 1931 | -27°F 1945 | 29% | 24% |
| Dec 23 | 25°F | 7°F | 48°F 1931 | -31°F 1983 | 29% | 25% |
| Dec 24 | 25°F | 7°F | 51°F 1932 | -32°F 1951 | 29% | 25% |
| Dec 25 | 24°F | 6°F | 46°F 1994 | -39°F 1968 | 29% | 25% |
| Dec 26 | 24°F | 6°F | 44°F 1994 | -32°F 1990 | 29% | 25% |
| Dec 27 | 24°F | 6°F | 44°F 1947 | -35°F 1933 | 29% | 25% |
| Dec 28 | 24°F | 5°F | 42°F 2003 | -28°F 1933 | 29% | 25% |
| Dec 29 | 24°F | 5°F | 41°F 1929 | -24°F 1926 | 29% | 25% |
| Dec 30 | 23°F | 5°F | 48°F 1999 | -31°F 1976 | 29% | 25% |
| Dec 31 | 23°F | 4°F | 46°F 2004 | -42°F 1946 | 29% | 25% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (CST).
- December 1
- sunrise 7:30 AM, sunset 4:27 PM
- December 31
- sunrise 7:51 AM, sunset 4:35 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USW00014995 (Grantsburg), public domain. Records: NOAA GHCN-Daily, station USC00471978, 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.