Cambridge Weather in December
Average highs run from 47°F on December 1 to 41°F on December 31, and lows from 17°F to 12°F. Normal precipitation for the month is 0.67 in over about 3 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
- 43°F
- Average low
- 14°F
- Precipitation
- 0.67 in
- Snowfall
- 5.2 in
- Record high
- 82°FDec 23, 1964
- Record low
- -35°FDec 23, 1989
- Chance of a freeze
- 100%
- Daylight
- 9 h 31 min to 9 h 21 min
- Cloud cover
- 59%
- Humidity
- 70%
- Dew point
- 20°F
- Wind
- 10.7 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 | 47°F | 17°F | 78°F 1995 | -4°F 1985 | 11% | 7% |
| Dec 2 | 47°F | 17°F | 71°F 2021 | -6°F 1991 | 11% | 7% |
| Dec 3 | 46°F | 17°F | 79°F 2021 | -6°F 1991 | 11% | 7% |
| Dec 4 | 46°F | 16°F | 70°F 1916 | -4°F 2005 | 11% | 8% |
| Dec 5 | 45°F | 16°F | 69°F 1989 | -8°F 1909 | 11% | 8% |
| Dec 6 | 45°F | 16°F | 69°F 1989 | -17°F 2011 | 11% | 8% |
| Dec 7 | 45°F | 15°F | 65°F 1970 | -17°F 2011 | 11% | 8% |
| Dec 8 | 44°F | 15°F | 73°F 1970 | -16°F 1909 | 11% | 8% |
| Dec 9 | 44°F | 15°F | 69°F 2020 | -14°F 2005 | 11% | 8% |
| Dec 10 | 43°F | 15°F | 69°F 2015 | -11°F 1914 | 11% | 8% |
| Dec 11 | 43°F | 14°F | 67°F 2017 | -11°F 2009 | 11% | 8% |
| Dec 12 | 43°F | 14°F | 72°F 2025 | -18°F 1961 | 11% | 8% |
| Dec 13 | 43°F | 14°F | 64°F 1988 | -17°F 1961 | 11% | 8% |
| Dec 14 | 42°F | 14°F | 71°F 1988 | -16°F 1961 | 11% | 8% |
| Dec 15 | 42°F | 14°F | 71°F 1977 | -22°F 1989 | 11% | 9% |
| Dec 16 | 42°F | 13°F | 68°F 2021 | -22°F 1989 | 11% | 9% |
| Dec 17 | 42°F | 13°F | 73°F 1980 | -16°F 1989 | 11% | 9% |
| Dec 18 | 41°F | 13°F | 69°F 1979 | -19°F 2016 | 11% | 9% |
| Dec 19 | 41°F | 13°F | 72°F 2013 | -22°F 1989 | 11% | 9% |
| Dec 20 | 41°F | 13°F | 65°F 1941 | -22°F 1989 | 11% | 9% |
| Dec 21 | 41°F | 13°F | 65°F 2003 | -20°F 1916 | 11% | 9% |
| Dec 22 | 41°F | 13°F | 72°F 2024 | -33°F 1989 | 11% | 9% |
| Dec 23 | 41°F | 13°F | 82°F 1964 | -35°F 1989 | 11% | 9% |
| Dec 24 | 41°F | 13°F | 65°F 1964 | -29°F 1989 | 11% | 9% |
| Dec 25 | 41°F | 12°F | 71°F 1950 | -14°F 1983 | 11% | 9% |
| Dec 26 | 41°F | 12°F | 66°F 1908 | -10°F 1962 | 11% | 9% |
| Dec 27 | 41°F | 12°F | 71°F 1980 | -12°F 1941 | 11% | 9% |
| Dec 28 | 41°F | 12°F | 66°F 2025 | -8°F 1916 | 11% | 9% |
| Dec 29 | 41°F | 12°F | 68°F 1999 | -13°F 1983 | 11% | 9% |
| Dec 30 | 41°F | 12°F | 69°F 1999 | -20°F 1983 | 11% | 9% |
| Dec 31 | 41°F | 12°F | 67°F 1903 | -22°F 1967 | 11% | 9% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (CST).
- December 1
- sunrise 7:44 AM, sunset 5:15 PM
- December 31
- sunrise 8:03 AM, sunset 5:24 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00251415 (Cambridge), public domain. Records: NOAA GHCN-Daily, station USC00251415, 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.