Watertown Weather in December
Average highs run from 32°F on December 1 to 22°F on December 31, and lows from 14°F to 5°F. Normal precipitation for the month is 0.68 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
- 26°F
- Average low
- 9°F
- Precipitation
- 0.68 in
- Snowfall
- 8.9 in
- Record high
- 69°FDec 6, 1939
- Record low
- -37°FDec 18, 2016
- Chance of a freeze
- 100%
- Daylight
- 9 h 03 min to 8 h 51 min
- Cloud cover
- 65%
- Humidity
- 86%
- Dew point
- 15°F
- Wind
- 12.5 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 | 32°F | 14°F | 59°F 1998 | -22°F 1893 | 19% | 14% |
| Dec 2 | 32°F | 14°F | 58°F 1907 | -16°F 1940 | 19% | 14% |
| Dec 3 | 31°F | 14°F | 64°F 1941 | -16°F 1985 | 19% | 15% |
| Dec 4 | 31°F | 13°F | 57°F 1916 | -18°F 1927 | 19% | 15% |
| Dec 5 | 30°F | 13°F | 59°F 1939 | -17°F 2005 | 19% | 15% |
| Dec 6 | 30°F | 12°F | 69°F 1939 | -25°F 1972 | 19% | 16% |
| Dec 7 | 29°F | 12°F | 61°F 2023 | -23°F 2013 | 19% | 16% |
| Dec 8 | 29°F | 12°F | 57°F 1990 | -27°F 1927 | 19% | 16% |
| Dec 9 | 29°F | 11°F | 59°F 1939 | -24°F 1927 | 19% | 16% |
| Dec 10 | 28°F | 11°F | 53°F 1928 | -20°F 1917 | 19% | 17% |
| Dec 11 | 28°F | 11°F | 55°F 1939 | -20°F 1917 | 19% | 17% |
| Dec 12 | 27°F | 10°F | 57°F 1913 | -24°F 1932 | 19% | 17% |
| Dec 13 | 27°F | 10°F | 57°F 1913 | -32°F 1917 | 19% | 17% |
| Dec 14 | 27°F | 10°F | 57°F 1913 | -33°F 1917 | 19% | 18% |
| Dec 15 | 26°F | 9°F | 56°F 1939 | -24°F 1917 | 19% | 18% |
| Dec 16 | 26°F | 9°F | 58°F 1939 | -24°F 1914 | 19% | 18% |
| Dec 17 | 26°F | 9°F | 58°F 1939 | -29°F 2016 | 19% | 18% |
| Dec 18 | 25°F | 8°F | 56°F 1923 | -37°F 2016 | 19% | 18% |
| Dec 19 | 25°F | 8°F | 52°F 1894 | -28°F 1955 | 19% | 18% |
| Dec 20 | 25°F | 8°F | 55°F 1941 | -30°F 1916 | 19% | 19% |
| Dec 21 | 24°F | 8°F | 55°F 1900 | -31°F 1916 | 20% | 19% |
| Dec 22 | 24°F | 7°F | 55°F 2020 | -29°F 1916 | 20% | 19% |
| Dec 23 | 24°F | 7°F | 51°F 1899 | -30°F 1983 | 20% | 19% |
| Dec 24 | 24°F | 7°F | 46°F 2023 | -28°F 1983 | 20% | 19% |
| Dec 25 | 23°F | 7°F | 49°F 1943 | -24°F 1902 | 20% | 19% |
| Dec 26 | 23°F | 6°F | 50°F 2011 | -28°F 1996 | 20% | 19% |
| Dec 27 | 23°F | 6°F | 50°F 1928 | -27°F 1924 | 20% | 19% |
| Dec 28 | 23°F | 6°F | 48°F 2024 | -24°F 1924 | 20% | 19% |
| Dec 29 | 23°F | 6°F | 53°F 1999 | -32°F 1917 | 20% | 20% |
| Dec 30 | 22°F | 5°F | 49°F 2004 | -29°F 1990 | 20% | 20% |
| Dec 31 | 22°F | 5°F | 51°F 1904 | -33°F 1967 | 20% | 20% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (CST).
- December 1
- sunrise 7:46 AM, sunset 4:49 PM
- December 31
- sunrise 8:06 AM, sunset 4:57 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USW00014946 (Watertown Rgnl AP), public domain. Records: NOAA GHCN-Daily, station USW00014946, 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.