Crestline Weather in December
Average highs run from 45°F on December 1 to 43°F on December 31, and lows from 30°F to 29°F. Normal precipitation for the month is 5.17 in over about 4 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
- 43°F
- Average low
- 29°F
- Precipitation
- 5.17 in
- Snowfall
- 3.5 in
- Record high
- 90°FDec 3, 1958
- Record low
- 23°FDec 8, 1978
- Chance of a freeze
- 100%
- Daylight
- 10 h 02 min to 9 h 55 min
- Cloud cover
- 43%
- Humidity
- 54%
- Dew point
- 30°F
- Wind
- 6.9 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 | 30°F | 85°F 2008 | 30°F 1906 | 11% | 1% |
| Dec 2 | 45°F | 30°F | 87°F 1958 | 31°F 2004 | 11% | 2% |
| Dec 3 | 45°F | 30°F | 90°F 1958 | 30°F 1934 | 11% | 2% |
| Dec 4 | 44°F | 30°F | 87°F 1979 | 26°F 1909 | 12% | 2% |
| Dec 5 | 44°F | 30°F | 89°F 1979 | 25°F 1983 | 12% | 2% |
| Dec 6 | 44°F | 30°F | 86°F 1938 | 27°F 1983 | 12% | 2% |
| Dec 7 | 44°F | 30°F | 86°F 2006 | 25°F 1978 | 12% | 2% |
| Dec 8 | 43°F | 30°F | 85°F 1938 | 23°F 1978 | 13% | 2% |
| Dec 9 | 43°F | 29°F | 84°F 1975 | 26°F 1951 | 13% | 2% |
| Dec 10 | 43°F | 29°F | 85°F 1950 | 31°F 1916 | 13% | 2% |
| Dec 11 | 43°F | 29°F | 87°F 1958 | 27°F 1972 | 13% | 2% |
| Dec 12 | 43°F | 29°F | 85°F 1988 | 25°F 1972 | 14% | 2% |
| Dec 13 | 43°F | 29°F | 86°F 1998 | 27°F 1931 | 14% | 2% |
| Dec 14 | 43°F | 29°F | 84°F 1929 | 23°F 1967 | 14% | 2% |
| Dec 15 | 42°F | 29°F | 83°F 1980 | 27°F 1972 | 15% | 2% |
| Dec 16 | 42°F | 29°F | 85°F 1980 | 28°F 1971 | 15% | 2% |
| Dec 17 | 42°F | 29°F | 84°F 1958 | 29°F 1928 | 15% | 2% |
| Dec 18 | 42°F | 29°F | 84°F 1917 | 25°F 1908 | 15% | 2% |
| Dec 19 | 42°F | 29°F | 85°F 1917 | 27°F 1909 | 16% | 2% |
| Dec 20 | 42°F | 29°F | 85°F 1917 | 29°F 1924 | 16% | 2% |
| Dec 21 | 42°F | 29°F | 85°F 1917 | 24°F 1968 | 16% | 2% |
| Dec 22 | 42°F | 29°F | 80°F 1933 | 26°F 1930 | 16% | 2% |
| Dec 23 | 42°F | 29°F | 83°F 1915 | 24°F 1908 | 17% | 2% |
| Dec 24 | 42°F | 29°F | 86°F 2005 | 26°F 1948 | 17% | 2% |
| Dec 25 | 42°F | 29°F | 84°F 1985 | 24°F 1924 | 17% | 2% |
| Dec 26 | 43°F | 29°F | 85°F 1980 | 24°F 1911 | 17% | 2% |
| Dec 27 | 43°F | 29°F | 82°F 1980 | 27°F 1924 | 17% | 2% |
| Dec 28 | 43°F | 29°F | 82°F 1917 | 25°F 1954 | 18% | 2% |
| Dec 29 | 43°F | 29°F | 85°F 1917 | 27°F 1954 | 18% | 3% |
| Dec 30 | 43°F | 29°F | 84°F 1980 | 28°F 1971 | 18% | 3% |
| Dec 31 | 43°F | 29°F | 86°F 1917 | 27°F 1915 | 18% | 3% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (PST).
- December 1
- sunrise 6:37 AM, sunset 4:39 PM
- December 31
- sunrise 6:55 AM, sunset 4:50 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00044671 (Lake Arrowhead), public domain. Records: NOAA GHCN-Daily, station USC00047306, 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.