Concrete Weather in December
Average highs run from 45°F on December 1 to 41°F on December 31, and lows from 35°F to 33°F. Normal precipitation for the month is 10.42 in over about 21 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
- 42°F
- Average low
- 34°F
- Precipitation
- 10.42 in
- Snowfall
- 7.6 in
- Record high
- 74°FDec 5, 1939
- Record low
- 1°FDec 28, 1968
- Chance of a freeze
- 99%
- Daylight
- 8 h 36 min to 8 h 22 min
- Cloud cover
- 72%
- Humidity
- 97%
- Dew point
- 21°F
- Wind
- 4.5 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 | 45°F | 35°F | 61°F 1903 | 13°F 1985 | 70% | 4% |
| Dec 2 | 44°F | 35°F | 62°F 1941 | 12°F 1985 | 70% | 4% |
| Dec 3 | 44°F | 35°F | 61°F 1896 | 18°F 1909 | 70% | 4% |
| Dec 4 | 44°F | 35°F | 72°F 1939 | 11°F 1919 | 69% | 4% |
| Dec 5 | 44°F | 35°F | 74°F 1939 | 18°F 1908 | 69% | 4% |
| Dec 6 | 43°F | 35°F | 61°F 1944 | 14°F 1956 | 69% | 5% |
| Dec 7 | 43°F | 34°F | 62°F 2024 | 12°F 1972 | 69% | 5% |
| Dec 8 | 43°F | 34°F | 65°F 1896 | 10°F 1972 | 69% | 5% |
| Dec 9 | 43°F | 34°F | 65°F 1896 | 8°F 1932 | 69% | 5% |
| Dec 10 | 43°F | 34°F | 67°F 1900 | 8°F 1972 | 69% | 6% |
| Dec 11 | 43°F | 34°F | 60°F 2004 | 9°F 1922 | 69% | 6% |
| Dec 12 | 42°F | 34°F | 62°F 1960 | 2°F 1922 | 69% | 6% |
| Dec 13 | 42°F | 34°F | 64°F 1900 | 9°F 1922 | 69% | 6% |
| Dec 14 | 42°F | 34°F | 63°F 2002 | 12°F 1932 | 69% | 7% |
| Dec 15 | 42°F | 34°F | 65°F 1900 | 13°F 1922 | 69% | 7% |
| Dec 16 | 42°F | 33°F | 62°F 1900 | 3°F 1964 | 69% | 7% |
| Dec 17 | 42°F | 33°F | 61°F 1923 | 6°F 1964 | 69% | 7% |
| Dec 18 | 42°F | 33°F | 60°F 1923 | 8°F 1924 | 68% | 7% |
| Dec 19 | 42°F | 33°F | 60°F 1959 | 10°F 1924 | 68% | 8% |
| Dec 20 | 41°F | 33°F | 62°F 1940 | 9°F 2008 | 68% | 8% |
| Dec 21 | 41°F | 33°F | 61°F 1950 | 11°F 1990 | 68% | 8% |
| Dec 22 | 41°F | 33°F | 60°F 1940 | 9°F 1998 | 68% | 8% |
| Dec 23 | 41°F | 33°F | 60°F 1963 | 9°F 1983 | 68% | 8% |
| Dec 24 | 41°F | 33°F | 65°F 1963 | 10°F 1924 | 68% | 8% |
| Dec 25 | 41°F | 33°F | 67°F 2005 | 8°F 1924 | 68% | 9% |
| Dec 26 | 41°F | 33°F | 62°F 1980 | 16°F 1948 | 68% | 9% |
| Dec 27 | 41°F | 33°F | 65°F 1980 | 7°F 2021 | 68% | 9% |
| Dec 28 | 41°F | 33°F | 59°F 1896 | 1°F 1968 | 68% | 9% |
| Dec 29 | 41°F | 33°F | 60°F 1917 | 1°F 1968 | 68% | 9% |
| Dec 30 | 41°F | 33°F | 62°F 1963 | 4°F 1968 | 68% | 9% |
| Dec 31 | 41°F | 33°F | 61°F 1917 | 4°F 1951 | 68% | 9% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (PST).
- December 1
- sunrise 7:38 AM, sunset 4:14 PM
- December 31
- sunrise 7:59 AM, sunset 4:21 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00451679 (Concrete Ppl Fish Stn), public domain. Records: NOAA GHCN-Daily, station USC00457507, 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.