Chester Weather in December
Average highs run from 44°F on December 1 to 41°F on December 31, and lows from 24°F to 21°F. Normal precipitation for the month is 6.54 in over about 12 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
- 41°F
- Average low
- 22°F
- Precipitation
- 6.54 in
- Snowfall
- 22.4 in
- Record high
- 62°FDec 1, 1959
- Record low
- -16°FDec 9, 1972
- Chance of a freeze
- 100%
- Daylight
- 9 h 30 min to 9 h 21 min
- Cloud cover
- 62%
- Humidity
- 84%
- Dew point
- 24°F
- Wind
- 6.0 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 | 24°F | 62°F 1959 | 13°F 1965 | 35% | 12% |
| Dec 2 | 44°F | 23°F | 62°F 1958 | 5°F 2022 | 35% | 12% |
| Dec 3 | 43°F | 23°F | 62°F 1979 | 4°F 2022 | 36% | 12% |
| Dec 4 | 43°F | 23°F | 60°F 1958 | 8°F 1968 | 36% | 12% |
| Dec 5 | 43°F | 23°F | 60°F 1979 | 0°F 1972 | 36% | 12% |
| Dec 6 | 42°F | 23°F | 60°F 1958 | 1°F 1998 | 36% | 13% |
| Dec 7 | 42°F | 23°F | 60°F 1962 | 2°F 1978 | 37% | 13% |
| Dec 8 | 42°F | 22°F | 61°F 1975 | -9°F 1972 | 37% | 13% |
| Dec 9 | 42°F | 22°F | 58°F 1957 | -16°F 1972 | 37% | 13% |
| Dec 10 | 41°F | 22°F | 60°F 1958 | -6°F 1972 | 37% | 14% |
| Dec 11 | 41°F | 22°F | 60°F 1958 | -13°F 1972 | 37% | 14% |
| Dec 12 | 41°F | 22°F | 59°F 1988 | 3°F 1985 | 38% | 14% |
| Dec 13 | 41°F | 22°F | 58°F 1988 | -6°F 1972 | 38% | 14% |
| Dec 14 | 41°F | 22°F | 54°F 1983 | -8°F 1972 | 38% | 14% |
| Dec 15 | 41°F | 22°F | 58°F 1976 | 3°F 1971 | 38% | 15% |
| Dec 16 | 41°F | 22°F | 60°F 1958 | 2°F 1971 | 38% | 15% |
| Dec 17 | 41°F | 22°F | 58°F 1983 | 1°F 2008 | 38% | 15% |
| Dec 18 | 40°F | 22°F | 57°F 1979 | 1°F 1992 | 38% | 15% |
| Dec 19 | 40°F | 21°F | 54°F 1960 | -1°F 1978 | 38% | 15% |
| Dec 20 | 40°F | 21°F | 54°F 1999 | -8°F 1990 | 38% | 15% |
| Dec 21 | 40°F | 21°F | 58°F 1960 | -16°F 1990 | 38% | 16% |
| Dec 22 | 40°F | 21°F | 55°F 1960 | -15°F 1990 | 38% | 16% |
| Dec 23 | 40°F | 21°F | 56°F 1985 | -8°F 1990 | 38% | 16% |
| Dec 24 | 40°F | 21°F | 56°F 1964 | -9°F 1990 | 38% | 16% |
| Dec 25 | 40°F | 21°F | 56°F 1972 | -3°F 1970 | 38% | 16% |
| Dec 26 | 40°F | 21°F | 57°F 1976 | -6°F 1988 | 38% | 16% |
| Dec 27 | 40°F | 21°F | 56°F 1967 | -2°F 1988 | 38% | 16% |
| Dec 28 | 41°F | 21°F | 61°F 1975 | 3°F 1971 | 39% | 16% |
| Dec 29 | 41°F | 21°F | 55°F 1975 | -3°F 1978 | 39% | 17% |
| Dec 30 | 41°F | 21°F | 58°F 1960 | -4°F 1978 | 39% | 17% |
| Dec 31 | 41°F | 21°F | 62°F 1960 | -4°F 1978 | 39% | 17% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (PST).
- December 1
- sunrise 7:09 AM, sunset 4:39 PM
- December 31
- sunrise 7:28 AM, sunset 4:49 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00041700 (Chester), public domain. Records: NOAA GHCN-Daily, station USC00041700, 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.