Humboldt County Weather in December
Average highs run from 45°F on December 1 to 40°F on December 31, and lows from 20°F to 17°F. Normal precipitation for the month is 1.14 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
- 41°F
- Average low
- 18°F
- Precipitation
- 1.14 in
- Snowfall
- 4.0 in
- Record high
- 70°FDec 10, 1939
- Record low
- -37°FDec 22, 1990
- Chance of a freeze
- 100%
- Daylight
- 9 h 25 min to 9 h 14 min
- Cloud cover
- 64%
- Humidity
- 74%
- Dew point
- 20°F
- Wind
- 6.5 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 | 20°F | 65°F 1995 | -5°F 1905 | 20% | 4% |
| Dec 2 | 45°F | 20°F | 66°F 1977 | -2°F 1906 | 20% | 4% |
| Dec 3 | 44°F | 20°F | 67°F 2007 | -1°F 2006 | 20% | 5% |
| Dec 4 | 44°F | 20°F | 63°F 1979 | -5°F 2006 | 20% | 5% |
| Dec 5 | 44°F | 20°F | 61°F 1901 | -10°F 1972 | 20% | 5% |
| Dec 6 | 43°F | 19°F | 65°F 1977 | -6°F 1891 | 20% | 5% |
| Dec 7 | 43°F | 19°F | 63°F 1973 | -6°F 1956 | 21% | 5% |
| Dec 8 | 43°F | 19°F | 66°F 1976 | -25°F 1972 | 21% | 5% |
| Dec 9 | 42°F | 19°F | 65°F 1981 | -34°F 1972 | 21% | 5% |
| Dec 10 | 42°F | 19°F | 70°F 1939 | -30°F 1972 | 21% | 6% |
| Dec 11 | 42°F | 18°F | 64°F 1958 | -33°F 1972 | 21% | 6% |
| Dec 12 | 42°F | 18°F | 60°F 1921 | -24°F 1932 | 21% | 6% |
| Dec 13 | 41°F | 18°F | 61°F 1921 | -15°F 1972 | 21% | 6% |
| Dec 14 | 41°F | 18°F | 65°F 1929 | -20°F 1972 | 21% | 6% |
| Dec 15 | 41°F | 18°F | 62°F 1939 | -14°F 1932 | 21% | 6% |
| Dec 16 | 41°F | 18°F | 67°F 1939 | -8°F 2008 | 21% | 6% |
| Dec 17 | 41°F | 18°F | 61°F 2025 | -12°F 2008 | 21% | 6% |
| Dec 18 | 40°F | 18°F | 62°F 2025 | -22°F 1924 | 21% | 6% |
| Dec 19 | 40°F | 17°F | 65°F 1917 | -25°F 1924 | 21% | 6% |
| Dec 20 | 40°F | 17°F | 58°F 1933 | -19°F 1990 | 21% | 6% |
| Dec 21 | 40°F | 17°F | 65°F 2025 | -31°F 1990 | 21% | 6% |
| Dec 22 | 40°F | 17°F | 64°F 2019 | -37°F 1990 | 21% | 6% |
| Dec 23 | 40°F | 17°F | 62°F 2025 | -28°F 1990 | 21% | 6% |
| Dec 24 | 40°F | 17°F | 57°F 1902 | -27°F 1924 | 21% | 6% |
| Dec 25 | 40°F | 17°F | 62°F 1902 | -24°F 1924 | 21% | 6% |
| Dec 26 | 40°F | 17°F | 58°F 1928 | -26°F 1924 | 21% | 6% |
| Dec 27 | 40°F | 17°F | 67°F 1980 | -13°F 1954 | 21% | 6% |
| Dec 28 | 40°F | 17°F | 62°F 2011 | -14°F 1988 | 21% | 6% |
| Dec 29 | 40°F | 17°F | 60°F 1917 | -16°F 1988 | 21% | 6% |
| Dec 30 | 40°F | 17°F | 62°F 2011 | -17°F 1990 | 21% | 6% |
| Dec 31 | 40°F | 17°F | 55°F 1917 | -15°F 1974 | 21% | 6% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (PST).
- December 1
- sunrise 6:59 AM, sunset 4:24 PM
- December 31
- sunrise 7:19 AM, sunset 4:33 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00265818 (Orovada 3 W), public domain. Records: NOAA GHCN-Daily, station USW00024128, 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.