Sierra County Weather in December
Average highs run from 59°F on December 1 to 54°F on December 31, and lows from 33°F to 29°F. Normal precipitation for the month is 0.64 in over about 3 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
- 56°F
- Average low
- 30°F
- Precipitation
- 0.64 in
- Snowfall
- 0.3 in
- Record high
- 77°FDec 20, 2025
- Record low
- 2°FDec 24, 1953
- Chance of a freeze
- 100%
- Daylight
- 10 h 08 min to 10 h 00 min
- Cloud cover
- 44%
- Humidity
- 54%
- Dew point
- 22°F
- Wind
- 7.6 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 | 59°F | 33°F | 71°F 2012 | 15°F 1957 | 9% | 0% |
| Dec 2 | 59°F | 33°F | 74°F 2008 | 19°F 1976 | 9% | 0% |
| Dec 3 | 58°F | 33°F | 72°F 2017 | 19°F 1976 | 9% | 0% |
| Dec 4 | 58°F | 32°F | 75°F 1958 | 13°F 2009 | 10% | 0% |
| Dec 5 | 58°F | 32°F | 73°F 1958 | 17°F 2011 | 10% | 0% |
| Dec 6 | 57°F | 32°F | 70°F 2007 | 11°F 2011 | 10% | 0% |
| Dec 7 | 57°F | 32°F | 71°F 2003 | 12°F 1953 | 10% | 0% |
| Dec 8 | 57°F | 31°F | 72°F 1977 | 6°F 1978 | 10% | 0% |
| Dec 9 | 56°F | 31°F | 70°F 1950 | 6°F 1978 | 10% | 0% |
| Dec 10 | 56°F | 31°F | 70°F 1979 | 9°F 1960 | 10% | 0% |
| Dec 11 | 56°F | 31°F | 68°F 1950 | 4°F 1960 | 10% | 0% |
| Dec 12 | 56°F | 31°F | 74°F 1958 | 12°F 1953 | 10% | 0% |
| Dec 13 | 56°F | 31°F | 69°F 2019 | 16°F 1960 | 10% | 0% |
| Dec 14 | 55°F | 30°F | 70°F 1950 | 8°F 1964 | 10% | 0% |
| Dec 15 | 55°F | 30°F | 71°F 2016 | 6°F 1960 | 10% | 0% |
| Dec 16 | 55°F | 30°F | 68°F 2016 | 7°F 1960 | 10% | 0% |
| Dec 17 | 55°F | 30°F | 67°F 2025 | 14°F 1960 | 10% | 0% |
| Dec 18 | 55°F | 30°F | 68°F 1998 | 13°F 1960 | 10% | 0% |
| Dec 19 | 55°F | 30°F | 71°F 2025 | 16°F 1968 | 10% | 0% |
| Dec 20 | 55°F | 30°F | 77°F 2025 | 15°F 1973 | 10% | 0% |
| Dec 21 | 54°F | 30°F | 72°F 2025 | 13°F 1977 | 10% | 0% |
| Dec 22 | 54°F | 29°F | 73°F 2025 | 13°F 1989 | 10% | 1% |
| Dec 23 | 54°F | 29°F | 72°F 1955 | 10°F 1953 | 10% | 1% |
| Dec 24 | 54°F | 29°F | 70°F 1955 | 2°F 1953 | 10% | 1% |
| Dec 25 | 54°F | 29°F | 70°F 2025 | 8°F 1953 | 10% | 1% |
| Dec 26 | 54°F | 29°F | 71°F 2025 | 12°F 1974 | 10% | 1% |
| Dec 27 | 54°F | 29°F | 65°F 1964 | 7°F 1974 | 10% | 1% |
| Dec 28 | 54°F | 29°F | 69°F 1955 | 8°F 1974 | 10% | 1% |
| Dec 29 | 54°F | 29°F | 69°F 1955 | 6°F 1954 | 10% | 1% |
| Dec 30 | 54°F | 29°F | 71°F 1951 | 10°F 1954 | 10% | 1% |
| Dec 31 | 54°F | 29°F | 67°F 2024 | 12°F 1958 | 10% | 1% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (MST).
- December 1
- sunrise 6:54 AM, sunset 5:02 PM
- December 31
- sunrise 7:12 AM, sunset 5:12 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00292848 (Elephant Butte Dam), public domain. Records: NOAA GHCN-Daily, station USW00093045, 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 2026-09-25. Sun and moon: computed with the NOAA solar equations and Meeus.