Riddle Weather in December
Average highs run from 53°F on December 1 to 50°F on December 31, and lows from 39°F to 36°F. Normal precipitation for the month is 6.17 in over about 20 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
- 37°F
- Precipitation
- 6.17 in
- Snowfall
- 0.6 in
- Record high
- 70°FDec 21, 1940
- Record low
- 5°FDec 11, 1932
- Chance of a freeze
- 87%
- Daylight
- 9 h 15 min to 9 h 04 min
- Cloud cover
- 77%
- Humidity
- 93%
- Dew point
- 38°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 | 53°F | 39°F | 68°F 1958 | 27°F 1931 | 67% | 1% |
| Dec 2 | 52°F | 38°F | 69°F 1958 | 30°F 2011 | 67% | 1% |
| Dec 3 | 52°F | 38°F | 66°F 1958 | 28°F 1936 | 67% | 1% |
| Dec 4 | 52°F | 38°F | 69°F 1949 | 23°F 2013 | 67% | 1% |
| Dec 5 | 52°F | 38°F | 67°F 2023 | 20°F 2013 | 67% | 1% |
| Dec 6 | 52°F | 38°F | 64°F 1962 | 25°F 2009 | 67% | 1% |
| Dec 7 | 51°F | 38°F | 64°F 1939 | 17°F 2009 | 67% | 1% |
| Dec 8 | 51°F | 37°F | 66°F 2015 | 14°F 2009 | 67% | 1% |
| Dec 9 | 51°F | 37°F | 66°F 1933 | 9°F 1932 | 67% | 1% |
| Dec 10 | 51°F | 37°F | 67°F 2025 | 8°F 1932 | 67% | 1% |
| Dec 11 | 51°F | 37°F | 66°F 1955 | 5°F 1932 | 67% | 1% |
| Dec 12 | 51°F | 37°F | 65°F 1952 | 8°F 1932 | 66% | 1% |
| Dec 13 | 50°F | 37°F | 64°F 2004 | 9°F 1932 | 66% | 1% |
| Dec 14 | 50°F | 37°F | 68°F 1962 | 9°F 1932 | 66% | 1% |
| Dec 15 | 50°F | 36°F | 66°F 1941 | 12°F 1932 | 66% | 1% |
| Dec 16 | 50°F | 36°F | 62°F 1939 | 19°F 2008 | 66% | 1% |
| Dec 17 | 50°F | 36°F | 61°F 2024 | 17°F 1964 | 66% | 1% |
| Dec 18 | 50°F | 36°F | 65°F 2024 | 25°F 1964 | 66% | 1% |
| Dec 19 | 50°F | 36°F | 63°F 1940 | 24°F 1998 | 66% | 1% |
| Dec 20 | 50°F | 36°F | 64°F 2005 | 12°F 1998 | 66% | 1% |
| Dec 21 | 50°F | 36°F | 70°F 1940 | 9°F 1998 | 66% | 1% |
| Dec 22 | 50°F | 36°F | 64°F 1964 | 12°F 1998 | 66% | 1% |
| Dec 23 | 50°F | 36°F | 65°F 1947 | 12°F 1998 | 66% | 1% |
| Dec 24 | 50°F | 36°F | 62°F 2006 | 22°F 1948 | 66% | 1% |
| Dec 25 | 50°F | 36°F | 61°F 2005 | 18°F 1962 | 65% | 1% |
| Dec 26 | 50°F | 36°F | 64°F 2022 | 19°F 1962 | 65% | 1% |
| Dec 27 | 50°F | 36°F | 60°F 1961 | 22°F 1962 | 65% | 1% |
| Dec 28 | 50°F | 36°F | 64°F 1937 | 24°F 1962 | 65% | 1% |
| Dec 29 | 50°F | 36°F | 63°F 1937 | 24°F 1962 | 65% | 1% |
| Dec 30 | 50°F | 36°F | 63°F 1963 | 23°F 1955 | 65% | 1% |
| Dec 31 | 50°F | 36°F | 63°F 1963 | 21°F 2014 | 65% | 1% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (PST).
- December 1
- sunrise 7:25 AM, sunset 4:40 PM
- December 31
- sunrise 7:45 AM, sunset 4:49 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00357169 (Riddle), public domain. Records: NOAA GHCN-Daily, station USW00024231, 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.