Mendon Weather in December
Average highs run from 44°F on December 1 to 35°F on December 31, and lows from 28°F to 20°F. Normal precipitation for the month is 1.80 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
- 39°F
- Average low
- 24°F
- Precipitation
- 1.80 in
- Snowfall
- 5.2 in
- Record high
- 75°FDec 15, 2021
- Record low
- -22°FDec 22, 1989
- Chance of a freeze
- 100%
- Daylight
- 9 h 32 min to 9 h 22 min
- Cloud cover
- 66%
- Humidity
- 83%
- Dew point
- 26°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 | 44°F | 28°F | 65°F 1970 | 7°F 1985 | 26% | 6% |
| Dec 2 | 44°F | 28°F | 67°F 1962 | 5°F 1985 | 26% | 6% |
| Dec 3 | 44°F | 27°F | 74°F 2012 | 3°F 2006 | 25% | 6% |
| Dec 4 | 43°F | 27°F | 69°F 1998 | 2°F 2006 | 25% | 7% |
| Dec 5 | 43°F | 27°F | 68°F 2001 | 6°F 2005 | 25% | 7% |
| Dec 6 | 42°F | 26°F | 69°F 1951 | 0°F 1976 | 25% | 7% |
| Dec 7 | 42°F | 26°F | 65°F 2023 | -8°F 1976 | 25% | 7% |
| Dec 8 | 42°F | 26°F | 70°F 1991 | -2°F 1976 | 25% | 7% |
| Dec 9 | 41°F | 26°F | 61°F 2020 | -5°F 1977 | 25% | 8% |
| Dec 10 | 41°F | 25°F | 63°F 1979 | -6°F 1977 | 25% | 8% |
| Dec 11 | 41°F | 25°F | 69°F 1949 | -3°F 1962 | 25% | 8% |
| Dec 12 | 40°F | 25°F | 69°F 2015 | -10°F 1962 | 25% | 8% |
| Dec 13 | 40°F | 25°F | 67°F 1948 | -3°F 1961 | 25% | 8% |
| Dec 14 | 40°F | 24°F | 68°F 1975 | -5°F 2025 | 25% | 9% |
| Dec 15 | 39°F | 24°F | 75°F 2021 | -14°F 1951 | 25% | 9% |
| Dec 16 | 39°F | 24°F | 65°F 2006 | -10°F 1951 | 25% | 9% |
| Dec 17 | 39°F | 24°F | 58°F 2002 | -4°F 1950 | 24% | 9% |
| Dec 18 | 38°F | 23°F | 63°F 1957 | -10°F 1983 | 24% | 9% |
| Dec 19 | 38°F | 23°F | 60°F 1988 | -14°F 1983 | 24% | 10% |
| Dec 20 | 38°F | 23°F | 66°F 1949 | -14°F 1989 | 24% | 10% |
| Dec 21 | 38°F | 23°F | 60°F 1967 | -18°F 1989 | 24% | 10% |
| Dec 22 | 37°F | 22°F | 61°F 1957 | -22°F 1989 | 24% | 10% |
| Dec 23 | 37°F | 22°F | 63°F 1982 | -21°F 1989 | 24% | 10% |
| Dec 24 | 37°F | 22°F | 69°F 2021 | -15°F 1983 | 24% | 10% |
| Dec 25 | 37°F | 22°F | 66°F 2019 | -16°F 1983 | 24% | 11% |
| Dec 26 | 36°F | 21°F | 62°F 2008 | -8°F 1983 | 24% | 11% |
| Dec 27 | 36°F | 21°F | 65°F 2008 | -9°F 1951 | 24% | 11% |
| Dec 28 | 36°F | 21°F | 70°F 1984 | -6°F 1961 | 24% | 11% |
| Dec 29 | 36°F | 21°F | 70°F 2022 | -8°F 1983 | 24% | 11% |
| Dec 30 | 36°F | 21°F | 67°F 1965 | -8°F 1983 | 24% | 11% |
| Dec 31 | 35°F | 20°F | 64°F 1951 | -10°F 1976 | 24% | 12% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (CST).
- December 1
- sunrise 7:08 AM, sunset 4:40 PM
- December 31
- sunrise 7:27 AM, sunset 4:49 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USW00093989 (Quincy Rgnl AP), public domain. Records: NOAA GHCN-Daily, station USW00093989, 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.