Westminster Weather in December
Average highs run from 66°F on December 1 to 61°F on December 31, and lows from 44°F to 41°F. Normal precipitation for the month is 5.19 in over about 10 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
- 63°F
- Average low
- 42°F
- Precipitation
- 5.19 in
- Snowfall
- 0.2 in
- Record high
- 85°FDec 2, 1982
- Record low
- 8°FDec 23, 1989
- Chance of a freeze
- 85%
- Daylight
- 10 h 19 min to 10 h 13 min
- Cloud cover
- 62%
- Humidity
- 84%
- Dew point
- 47°F
- Wind
- 7.4 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 | 66°F | 44°F | 83°F 1991 | 24°F 1976 | 30% | 0% |
| Dec 2 | 66°F | 44°F | 85°F 1982 | 22°F 1960 | 30% | 0% |
| Dec 3 | 66°F | 44°F | 82°F 1942 | 26°F 1960 | 30% | 0% |
| Dec 4 | 65°F | 44°F | 82°F 1995 | 27°F 1979 | 30% | 0% |
| Dec 5 | 65°F | 44°F | 84°F 2013 | 23°F 2006 | 31% | 0% |
| Dec 6 | 65°F | 44°F | 84°F 2022 | 25°F 1945 | 31% | 0% |
| Dec 7 | 65°F | 43°F | 84°F 2022 | 20°F 1950 | 31% | 0% |
| Dec 8 | 65°F | 43°F | 83°F 2007 | 24°F 2006 | 31% | 0% |
| Dec 9 | 64°F | 43°F | 84°F 2023 | 22°F 2006 | 31% | 0% |
| Dec 10 | 64°F | 43°F | 83°F 2021 | 23°F 1937 | 32% | 0% |
| Dec 11 | 64°F | 43°F | 83°F 2007 | 23°F 1995 | 32% | 0% |
| Dec 12 | 64°F | 43°F | 83°F 1971 | 15°F 1962 | 32% | 0% |
| Dec 13 | 64°F | 43°F | 82°F 1933 | 11°F 1962 | 32% | 0% |
| Dec 14 | 63°F | 43°F | 82°F 1987 | 24°F 1962 | 33% | 0% |
| Dec 15 | 63°F | 42°F | 81°F 2007 | 23°F 1985 | 33% | 0% |
| Dec 16 | 63°F | 42°F | 82°F 1933 | 20°F 1943 | 33% | 0% |
| Dec 17 | 63°F | 42°F | 83°F 1933 | 22°F 1960 | 33% | 0% |
| Dec 18 | 63°F | 42°F | 82°F 2025 | 20°F 1979 | 34% | 0% |
| Dec 19 | 63°F | 42°F | 82°F 2008 | 20°F 1975 | 34% | 0% |
| Dec 20 | 62°F | 42°F | 81°F 1967 | 18°F 1996 | 34% | 0% |
| Dec 21 | 62°F | 42°F | 81°F 1967 | 24°F 1980 | 34% | 0% |
| Dec 22 | 62°F | 42°F | 81°F 2017 | 13°F 1989 | 35% | 0% |
| Dec 23 | 62°F | 41°F | 83°F 1931 | 8°F 1989 | 35% | 0% |
| Dec 24 | 62°F | 41°F | 83°F 2015 | 10°F 1989 | 35% | 0% |
| Dec 25 | 62°F | 41°F | 83°F 2015 | 11°F 1983 | 35% | 0% |
| Dec 26 | 62°F | 41°F | 84°F 2015 | 15°F 1983 | 35% | 0% |
| Dec 27 | 61°F | 41°F | 82°F 2008 | 22°F 1935 | 36% | 0% |
| Dec 28 | 61°F | 41°F | 81°F 2025 | 25°F 2010 | 36% | 0% |
| Dec 29 | 61°F | 41°F | 83°F 2021 | 21°F 1983 | 36% | 0% |
| Dec 30 | 61°F | 41°F | 82°F 2021 | 15°F 1983 | 36% | 0% |
| Dec 31 | 61°F | 41°F | 84°F 2021 | 14°F 1983 | 36% | 0% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (CST).
- December 1
- sunrise 6:44 AM, sunset 5:03 PM
- December 31
- sunrise 7:01 AM, sunset 5:14 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00165620 (Lsu Ben-Hur Farm), public domain. Records: NOAA GHCN-Daily, station USW00013970, 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.