Williams Weather in December
Average highs run from 50°F on December 1 to 46°F on December 31, and lows from 23°F to 20°F. Normal precipitation for the month is 1.94 in over about 6 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
- 47°F
- Average low
- 21°F
- Precipitation
- 1.94 in
- Snowfall
- 13.5 in
- Record high
- 74°FDec 27, 1980
- Record low
- -17°FDec 13, 1931
- Chance of a freeze
- 100%
- Daylight
- 9 h 57 min to 9 h 50 min
- Cloud cover
- 47%
- Humidity
- 63%
- Dew point
- 18°F
- Wind
- 8.5 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 | 50°F | 23°F | 70°F 1903 | -1°F 1931 | 16% | 9% |
| Dec 2 | 49°F | 23°F | 69°F 1911 | 3°F 1913 | 16% | 9% |
| Dec 3 | 49°F | 23°F | 68°F 1903 | -2°F 1931 | 16% | 9% |
| Dec 4 | 49°F | 22°F | 69°F 2007 | 0°F 1931 | 16% | 9% |
| Dec 5 | 49°F | 22°F | 67°F 1939 | 5°F 1931 | 17% | 9% |
| Dec 6 | 48°F | 22°F | 63°F 2021 | -1°F 2013 | 17% | 9% |
| Dec 7 | 48°F | 22°F | 64°F 1923 | -5°F 1978 | 17% | 10% |
| Dec 8 | 48°F | 21°F | 65°F 1940 | -7°F 1978 | 17% | 10% |
| Dec 9 | 48°F | 21°F | 66°F 1950 | -4°F 1947 | 17% | 10% |
| Dec 10 | 47°F | 21°F | 69°F 1921 | -5°F 1947 | 18% | 10% |
| Dec 11 | 47°F | 21°F | 69°F 1921 | 1°F 1898 | 18% | 10% |
| Dec 12 | 47°F | 21°F | 67°F 1921 | -3°F 1949 | 18% | 10% |
| Dec 13 | 47°F | 21°F | 67°F 1921 | -17°F 1931 | 18% | 11% |
| Dec 14 | 47°F | 21°F | 64°F 1946 | -10°F 1945 | 19% | 11% |
| Dec 15 | 47°F | 20°F | 70°F 1912 | -12°F 1940 | 19% | 11% |
| Dec 16 | 46°F | 20°F | 68°F 1939 | -9°F 1928 | 19% | 11% |
| Dec 17 | 46°F | 20°F | 67°F 1980 | -3°F 1927 | 19% | 11% |
| Dec 18 | 46°F | 20°F | 65°F 1912 | -7°F 1927 | 20% | 11% |
| Dec 19 | 46°F | 20°F | 66°F 2024 | -8°F 1924 | 20% | 11% |
| Dec 20 | 46°F | 20°F | 68°F 1917 | -7°F 1924 | 20% | 11% |
| Dec 21 | 46°F | 20°F | 70°F 1980 | -12°F 1897 | 20% | 11% |
| Dec 22 | 46°F | 20°F | 65°F 1917 | -10°F 1990 | 20% | 11% |
| Dec 23 | 46°F | 20°F | 64°F 1917 | -14°F 1926 | 20% | 12% |
| Dec 24 | 46°F | 20°F | 65°F 1933 | -15°F 1926 | 20% | 12% |
| Dec 25 | 46°F | 20°F | 65°F 1912 | -10°F 1926 | 20% | 12% |
| Dec 26 | 46°F | 20°F | 69°F 1929 | -10°F 1926 | 20% | 12% |
| Dec 27 | 46°F | 20°F | 74°F 1980 | -10°F 1926 | 20% | 12% |
| Dec 28 | 46°F | 20°F | 68°F 1925 | -8°F 1926 | 20% | 12% |
| Dec 29 | 46°F | 20°F | 68°F 1929 | -9°F 1932 | 21% | 12% |
| Dec 30 | 46°F | 20°F | 71°F 1929 | -12°F 1911 | 21% | 12% |
| Dec 31 | 46°F | 20°F | 69°F 1929 | -11°F 1911 | 21% | 12% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (MST).
- December 1
- sunrise 7:19 AM, sunset 5:16 PM
- December 31
- sunrise 7:37 AM, sunset 5:27 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00029359 (Williams), public domain. Records: NOAA GHCN-Daily, station USC00029359, 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.