Mountain View Weather in December
Average highs run from 55°F on December 1 to 47°F on December 31, and lows from 34°F to 29°F. Normal precipitation for the month is 4.30 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
- 51°F
- Average low
- 31°F
- Precipitation
- 4.30 in
- Snowfall
- 0.8 in
- Record high
- 80°FDec 1, 1970
- Record low
- -13°FDec 22, 1989
- Chance of a freeze
- 100%
- Daylight
- 9 h 55 min to 9 h 46 min
- Cloud cover
- 62%
- Humidity
- 82%
- Dew point
- 33°F
- Wind
- 4.9 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 | 55°F | 34°F | 80°F 1970 | 10°F 1965 | 24% | 1% |
| Dec 2 | 54°F | 34°F | 76°F 1970 | 11°F 1924 | 24% | 1% |
| Dec 3 | 54°F | 34°F | 79°F 1970 | 12°F 1989 | 24% | 1% |
| Dec 4 | 54°F | 34°F | 78°F 1970 | 12°F 1989 | 24% | 1% |
| Dec 5 | 53°F | 33°F | 78°F 2001 | 12°F 2009 | 24% | 1% |
| Dec 6 | 53°F | 33°F | 78°F 1998 | 12°F 1984 | 24% | 1% |
| Dec 7 | 53°F | 33°F | 77°F 1924 | 5°F 1984 | 24% | 1% |
| Dec 8 | 53°F | 33°F | 77°F 1923 | 6°F 2006 | 24% | 1% |
| Dec 9 | 52°F | 32°F | 72°F 1923 | 7°F 1995 | 24% | 1% |
| Dec 10 | 52°F | 32°F | 72°F 1970 | 5°F 1995 | 24% | 1% |
| Dec 11 | 52°F | 32°F | 78°F 1996 | 8°F 1978 | 24% | 1% |
| Dec 12 | 51°F | 32°F | 77°F 1924 | 7°F 2013 | 24% | 2% |
| Dec 13 | 51°F | 31°F | 73°F 2015 | 1°F 1989 | 24% | 2% |
| Dec 14 | 51°F | 31°F | 72°F 1995 | 1°F 1985 | 24% | 2% |
| Dec 15 | 51°F | 31°F | 69°F 1995 | 9°F 1989 | 24% | 2% |
| Dec 16 | 50°F | 31°F | 75°F 1924 | -4°F 1989 | 24% | 2% |
| Dec 17 | 50°F | 31°F | 73°F 1924 | 6°F 1989 | 24% | 2% |
| Dec 18 | 50°F | 31°F | 78°F 1978 | -1°F 1989 | 24% | 2% |
| Dec 19 | 50°F | 30°F | 70°F 1966 | -1°F 1985 | 24% | 2% |
| Dec 20 | 49°F | 30°F | 69°F 1967 | -3°F 1989 | 24% | 2% |
| Dec 21 | 49°F | 30°F | 70°F 1967 | -7°F 1989 | 24% | 2% |
| Dec 22 | 49°F | 30°F | 70°F 1970 | -13°F 1989 | 24% | 2% |
| Dec 23 | 49°F | 30°F | 68°F 1964 | -6°F 1989 | 24% | 2% |
| Dec 24 | 48°F | 30°F | 74°F 2025 | -4°F 2022 | 24% | 2% |
| Dec 25 | 48°F | 29°F | 77°F 2025 | -3°F 1983 | 24% | 2% |
| Dec 26 | 48°F | 29°F | 75°F 2021 | -6°F 1983 | 24% | 2% |
| Dec 27 | 48°F | 29°F | 79°F 2025 | 10°F 2010 | 24% | 2% |
| Dec 28 | 48°F | 29°F | 73°F 1923 | 3°F 1925 | 24% | 2% |
| Dec 29 | 48°F | 29°F | 75°F 1984 | -6°F 1983 | 24% | 2% |
| Dec 30 | 47°F | 29°F | 72°F 1923 | -9°F 1983 | 24% | 2% |
| Dec 31 | 47°F | 29°F | 68°F 1965 | -6°F 1983 | 24% | 2% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (CST).
- December 1
- sunrise 7:00 AM, sunset 4:55 PM
- December 31
- sunrise 7:19 AM, sunset 5:05 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00035046 (Mtn View), public domain. Records: NOAA GHCN-Daily, station USC00032366, 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.