Fairfield Weather in December
Average highs run from 55°F on December 1 to 47°F on December 31, and lows from 34°F to 27°F.
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
- 50°F
- Average low
- 30°F
- Snowfall
- 0.9 in
- Record high
- 80°FDec 8, 1991
- Record low
- -14°FDec 23, 1989
- Chance of a freeze
- 100%
- Daylight
- 9 h 55 min to 9 h 47 min
- Cloud cover
- 60%
- Humidity
- 82%
- Dew point
- 32°F
- Wind
- 6.3 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 | 55°F | 34°F | 79°F 1982 | 13°F 1985 | 1% | |
| Dec 2 | 55°F | 34°F | 75°F 1970 | 9°F 1985 | 1% | |
| Dec 3 | 54°F | 33°F | 77°F 1933 | 8°F 1929 | 1% | |
| Dec 4 | 54°F | 33°F | 79°F 1933 | 13°F 2006 | 1% | |
| Dec 5 | 54°F | 33°F | 77°F 1956 | 12°F 1950 | 1% | |
| Dec 6 | 53°F | 33°F | 77°F 1939 | 1°F 1950 | 1% | |
| Dec 7 | 53°F | 32°F | 79°F 1966 | -5°F 1950 | 1% | |
| Dec 8 | 52°F | 32°F | 80°F 1991 | 0°F 1917 | 1% | |
| Dec 9 | 52°F | 32°F | 72°F 1939 | 0°F 1917 | 1% | |
| Dec 10 | 52°F | 32°F | 74°F 1939 | -3°F 1917 | 1% | |
| Dec 11 | 51°F | 31°F | 76°F 1929 | 10°F 1917 | 1% | |
| Dec 12 | 51°F | 31°F | 72°F 1929 | 2°F 1962 | 1% | |
| Dec 13 | 50°F | 31°F | 71°F 1926 | 7°F 1961 | 1% | |
| Dec 14 | 50°F | 31°F | 80°F 1948 | 1°F 1958 | 2% | |
| Dec 15 | 50°F | 30°F | 72°F 1984 | 0°F 1989 | 2% | |
| Dec 16 | 49°F | 30°F | 79°F 1948 | -3°F 1989 | 2% | |
| Dec 17 | 49°F | 30°F | 72°F 2006 | 5°F 1932 | 2% | |
| Dec 18 | 49°F | 30°F | 69°F 1939 | 4°F 1975 | 2% | |
| Dec 19 | 48°F | 29°F | 71°F 1933 | -1°F 1945 | 2% | |
| Dec 20 | 48°F | 29°F | 72°F 1933 | 1°F 1901 | 2% | |
| Dec 21 | 48°F | 29°F | 69°F 1949 | 4°F 1951 | 2% | |
| Dec 22 | 48°F | 29°F | 70°F 1974 | -9°F 1989 | 2% | |
| Dec 23 | 48°F | 28°F | 72°F 1982 | -14°F 1989 | 2% | |
| Dec 24 | 47°F | 28°F | 78°F 1955 | -3°F 1983 | 2% | |
| Dec 25 | 47°F | 28°F | 73°F 1971 | -7°F 1983 | 2% | |
| Dec 26 | 47°F | 28°F | 68°F 1946 | -1°F 1983 | 2% | |
| Dec 27 | 47°F | 28°F | 75°F 1971 | 10°F 1925 | 2% | |
| Dec 28 | 47°F | 28°F | 75°F 1928 | 5°F 1925 | 2% | |
| Dec 29 | 47°F | 27°F | 71°F 1964 | -4°F 1917 | 2% | |
| Dec 30 | 47°F | 27°F | 79°F 1951 | 2°F 1954 | 2% | |
| Dec 31 | 47°F | 27°F | 80°F 1951 | 2°F 1990 | 2% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (CST).
- December 1
- sunrise 7:10 AM, sunset 5:05 PM
- December 31
- sunrise 7:28 AM, sunset 5:15 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00348506 (Stilwell 5 Nnw), public domain. Records: NOAA GHCN-Daily, station USC00348677, 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.