Boron Weather in December
Average highs run from 60°F on December 1 to 56°F on December 31, and lows from 37°F to 34°F. Normal precipitation for the month is 0.69 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
- 57°F
- Average low
- 35°F
- Precipitation
- 0.69 in
- Snowfall
- 0.8 in
- Record high
- 79°FDec 6, 1977
- Record low
- 8°FDec 23, 1990
- Chance of a freeze
- 100%
- Daylight
- 9 h 59 min to 9 h 51 min
- Cloud cover
- 40%
- Humidity
- 53%
- Dew point
- 25°F
- Wind
- 8.5 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 | 60°F | 37°F | 77°F 1995 | 25°F 1992 | 9% | 1% |
| Dec 2 | 60°F | 36°F | 75°F 1977 | 27°F 1978 | 9% | 1% |
| Dec 3 | 60°F | 36°F | 76°F 1972 | 20°F 1909 | 9% | 1% |
| Dec 4 | 59°F | 36°F | 76°F 1910 | 22°F 1909 | 9% | 1% |
| Dec 5 | 59°F | 36°F | 78°F 1910 | 20°F 1909 | 9% | 1% |
| Dec 6 | 59°F | 35°F | 79°F 1977 | 22°F 2013 | 9% | 1% |
| Dec 7 | 58°F | 35°F | 72°F 1908 | 17°F 1978 | 9% | 1% |
| Dec 8 | 58°F | 35°F | 75°F 1980 | 13°F 1978 | 10% | 1% |
| Dec 9 | 58°F | 35°F | 72°F 1989 | 17°F 1978 | 10% | 1% |
| Dec 10 | 58°F | 35°F | 73°F 1975 | 17°F 1978 | 10% | 1% |
| Dec 11 | 57°F | 35°F | 74°F 1975 | 12°F 1911 | 10% | 1% |
| Dec 12 | 57°F | 34°F | 74°F 1910 | 13°F 1972 | 10% | 1% |
| Dec 13 | 57°F | 34°F | 74°F 1988 | 15°F 1972 | 10% | 1% |
| Dec 14 | 57°F | 34°F | 74°F 1977 | 16°F 1972 | 11% | 1% |
| Dec 15 | 57°F | 34°F | 71°F 1980 | 17°F 1986 | 11% | 1% |
| Dec 16 | 56°F | 34°F | 76°F 1910 | 21°F 1971 | 11% | 1% |
| Dec 17 | 56°F | 34°F | 76°F 1910 | 22°F 1971 | 11% | 1% |
| Dec 18 | 56°F | 34°F | 74°F 1910 | 20°F 1911 | 11% | 1% |
| Dec 19 | 56°F | 34°F | 72°F 1908 | 22°F 1965 | 11% | 1% |
| Dec 20 | 56°F | 34°F | 72°F 1908 | 21°F 1911 | 11% | 1% |
| Dec 21 | 56°F | 34°F | 73°F 2000 | 19°F 1968 | 12% | 1% |
| Dec 22 | 56°F | 34°F | 72°F 1908 | 12°F 1990 | 12% | 1% |
| Dec 23 | 56°F | 34°F | 72°F 1908 | 8°F 1990 | 12% | 1% |
| Dec 24 | 56°F | 34°F | 71°F 1985 | 12°F 1990 | 12% | 1% |
| Dec 25 | 56°F | 34°F | 71°F 2005 | 13°F 1990 | 12% | 1% |
| Dec 26 | 56°F | 34°F | 75°F 1980 | 19°F 1987 | 12% | 1% |
| Dec 27 | 56°F | 34°F | 69°F 1980 | 19°F 1988 | 12% | 1% |
| Dec 28 | 56°F | 34°F | 75°F 1908 | 19°F 1911 | 12% | 1% |
| Dec 29 | 56°F | 34°F | 72°F 1985 | 20°F 1911 | 13% | 1% |
| Dec 30 | 56°F | 34°F | 72°F 1908 | 17°F 2015 | 13% | 1% |
| Dec 31 | 56°F | 34°F | 70°F 1908 | 20°F 1990 | 13% | 1% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (PST).
- December 1
- sunrise 6:40 AM, sunset 4:39 PM
- December 31
- sunrise 6:58 AM, sunset 4:49 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00047253 (Randsburg), public domain. Records: NOAA GHCN-Daily, station USC00045756, 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.