Julian Weather in December
Average highs run from 55°F on December 1 to 52°F on December 31, and lows from 40°F to 38°F. Normal precipitation for the month is 3.47 in over about 6 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
- 52°F
- Average low
- 38°F
- Precipitation
- 3.47 in
- Snowfall
- 0.2 in
- Record high
- 88°FDec 10, 2025
- Record low
- 20°FDec 5, 2011
- Chance of a freeze
- 94%
- Daylight
- 10 h 07 min to 10 h 01 min
- Cloud cover
- 39%
- Humidity
- 52%
- Dew point
- 31°F
- Wind
- 6.7 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 | 40°F | 86°F 2021 | 21°F 2004 | 18% | 0% |
| Dec 2 | 54°F | 39°F | 79°F 2017 | 24°F 2004 | 18% | 0% |
| Dec 3 | 54°F | 39°F | 80°F 2007 | 28°F 1999 | 19% | 0% |
| Dec 4 | 54°F | 39°F | 83°F 2007 | 23°F 2011 | 19% | 0% |
| Dec 5 | 54°F | 39°F | 83°F 2023 | 20°F 2011 | 19% | 0% |
| Dec 6 | 53°F | 39°F | 81°F 2015 | 24°F 2006 | 19% | 0% |
| Dec 7 | 53°F | 38°F | 82°F 2024 | 25°F 1998 | 19% | 0% |
| Dec 8 | 53°F | 38°F | 83°F 2025 | 23°F 2011 | 19% | 0% |
| Dec 9 | 53°F | 38°F | 84°F 2025 | 23°F 2013 | 19% | 0% |
| Dec 10 | 53°F | 38°F | 88°F 2025 | 27°F 2011 | 20% | 0% |
| Dec 11 | 52°F | 38°F | 82°F 2017 | 24°F 2011 | 20% | 0% |
| Dec 12 | 52°F | 38°F | 86°F 2010 | 27°F 1998 | 20% | 0% |
| Dec 13 | 52°F | 38°F | 82°F 2010 | 25°F 1999 | 20% | 0% |
| Dec 14 | 52°F | 38°F | 81°F 2004 | 27°F 2003 | 20% | 0% |
| Dec 15 | 52°F | 38°F | 80°F 2017 | 26°F 2003 | 20% | 1% |
| Dec 16 | 52°F | 38°F | 86°F 2013 | 26°F 2021 | 20% | 1% |
| Dec 17 | 52°F | 38°F | 82°F 2013 | 24°F 2015 | 21% | 1% |
| Dec 18 | 52°F | 38°F | 85°F 2024 | 26°F 2001 | 21% | 1% |
| Dec 19 | 51°F | 38°F | 85°F 2024 | 23°F 2006 | 21% | 1% |
| Dec 20 | 51°F | 38°F | 83°F 2005 | 22°F 2021 | 21% | 1% |
| Dec 21 | 51°F | 38°F | 84°F 2005 | 24°F 2012 | 21% | 1% |
| Dec 22 | 51°F | 38°F | 81°F 2025 | 23°F 1998 | 21% | 1% |
| Dec 23 | 51°F | 38°F | 77°F 2007 | 22°F 1998 | 21% | 1% |
| Dec 24 | 51°F | 38°F | 85°F 2005 | 21°F 1998 | 21% | 1% |
| Dec 25 | 51°F | 38°F | 85°F 2022 | 22°F 1998 | 21% | 1% |
| Dec 26 | 51°F | 38°F | 82°F 2022 | 26°F 2001 | 20% | 1% |
| Dec 27 | 51°F | 38°F | 80°F 2017 | 24°F 2003 | 20% | 1% |
| Dec 28 | 51°F | 38°F | 88°F 2017 | 24°F 2014 | 20% | 1% |
| Dec 29 | 52°F | 38°F | 86°F 2017 | 25°F 2003 | 20% | 1% |
| Dec 30 | 52°F | 38°F | 81°F 2017 | 25°F 2006 | 20% | 1% |
| Dec 31 | 52°F | 38°F | 82°F 2011 | 24°F 2003 | 20% | 1% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (PST).
- December 1
- sunrise 6:32 AM, sunset 4:39 PM
- December 31
- sunrise 6:49 AM, sunset 4:50 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00044412 (Julian Cdf), public domain. Records: NOAA GHCN-Daily, station USW00053120, 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.