Muir Weather in December
Average highs run from 38°F on December 1 to 31°F on December 31, and lows from 26°F to 19°F. Normal precipitation for the month is 2.22 in over about 14 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
- 34°F
- Average low
- 22°F
- Precipitation
- 2.22 in
- Snowfall
- 14.1 in
- Record high
- 68°FDec 6, 2001
- Record low
- -14°FDec 24, 1896
- Chance of a freeze
- 100%
- Daylight
- 9 h 15 min to 9 h 04 min
- Cloud cover
- 74%
- Humidity
- 88%
- Dew point
- 24°F
- Wind
- 11.4 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 | 38°F | 26°F | 65°F 1970 | 3°F 1976 | 43% | 27% |
| Dec 2 | 38°F | 25°F | 63°F 1982 | 1°F 1966 | 43% | 28% |
| Dec 3 | 38°F | 25°F | 66°F 1982 | -10°F 1976 | 44% | 29% |
| Dec 4 | 37°F | 25°F | 66°F 1982 | -2°F 2002 | 44% | 30% |
| Dec 5 | 37°F | 25°F | 59°F 1975 | 7°F 1964 | 44% | 30% |
| Dec 6 | 37°F | 24°F | 68°F 2001 | 0°F 1964 | 44% | 31% |
| Dec 7 | 36°F | 24°F | 64°F 1951 | 1°F 1972 | 44% | 32% |
| Dec 8 | 36°F | 24°F | 63°F 1966 | 0°F 1976 | 44% | 32% |
| Dec 9 | 36°F | 24°F | 62°F 1946 | -5°F 1958 | 44% | 33% |
| Dec 10 | 35°F | 23°F | 62°F 1971 | -2°F 1977 | 45% | 33% |
| Dec 11 | 35°F | 23°F | 57°F 1899 | -2°F 1988 | 45% | 34% |
| Dec 12 | 35°F | 23°F | 61°F 1949 | -6°F 1958 | 45% | 34% |
| Dec 13 | 34°F | 23°F | 58°F 1975 | -4°F 1958 | 45% | 35% |
| Dec 14 | 34°F | 22°F | 58°F 1975 | -3°F 1898 | 45% | 35% |
| Dec 15 | 34°F | 22°F | 61°F 1971 | -9°F 1963 | 45% | 36% |
| Dec 16 | 34°F | 22°F | 61°F 1984 | -10°F 1963 | 45% | 36% |
| Dec 17 | 33°F | 22°F | 53°F 2006 | -8°F 1963 | 45% | 37% |
| Dec 18 | 33°F | 22°F | 51°F 1939 | -8°F 1989 | 46% | 37% |
| Dec 19 | 33°F | 21°F | 53°F 1957 | -12°F 1983 | 46% | 38% |
| Dec 20 | 33°F | 21°F | 59°F 1957 | -12°F 1983 | 46% | 38% |
| Dec 21 | 32°F | 21°F | 61°F 1967 | -10°F 1901 | 46% | 39% |
| Dec 22 | 32°F | 21°F | 59°F 1967 | -7°F 2000 | 46% | 39% |
| Dec 23 | 32°F | 21°F | 56°F 1957 | -7°F 2000 | 46% | 40% |
| Dec 24 | 32°F | 20°F | 55°F 1982 | -14°F 1896 | 46% | 40% |
| Dec 25 | 32°F | 20°F | 58°F 1982 | -8°F 1983 | 46% | 40% |
| Dec 26 | 32°F | 20°F | 66°F 1982 | -9°F 1983 | 46% | 41% |
| Dec 27 | 31°F | 20°F | 55°F 1984 | -9°F 1993 | 47% | 41% |
| Dec 28 | 31°F | 19°F | 60°F 1982 | -10°F 2000 | 47% | 41% |
| Dec 29 | 31°F | 19°F | 57°F 1982 | -11°F 2000 | 47% | 41% |
| Dec 30 | 31°F | 19°F | 47°F 1965 | -12°F 1963 | 47% | 41% |
| Dec 31 | 31°F | 19°F | 61°F 1965 | -14°F 1976 | 47% | 42% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (EST).
- December 1
- sunrise 7:51 AM, sunset 5:06 PM
- December 31
- sunrise 8:11 AM, sunset 5:15 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00204078 (Ionia 2SSW), public domain. Records: NOAA GHCN-Daily, station USC00204078, 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.