Crystal City Weather in December
Average highs run from 70°F on December 1 to 66°F on December 31, and lows from 48°F to 43°F. Normal precipitation for the month is 0.84 in over about 5 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
- 68°F
- Average low
- 45°F
- Precipitation
- 0.84 in
- Record high
- 98°FDec 7, 1951
- Record low
- 10°FDec 23, 1989
- Chance of a freeze
- 73%
- Daylight
- 10 h 27 min to 10 h 21 min
- Cloud cover
- 56%
- Humidity
- 64%
- Dew point
- 41°F
- Wind
- 7.8 mph
Every day of the month
A wet day has at least 0.01 inch of precipitation.
| Date | Normal high | Normal low | Record high | Record low | Chance wet |
|---|---|---|---|---|---|
| Dec 1 | 70°F | 48°F | 93°F 2019 | 22°F 1957 | 15% |
| Dec 2 | 70°F | 48°F | 85°F 1933 | 23°F 2010 | 15% |
| Dec 3 | 69°F | 47°F | 91°F 1942 | 26°F 2010 | 15% |
| Dec 4 | 69°F | 47°F | 88°F 1977 | 26°F 1929 | 16% |
| Dec 5 | 69°F | 47°F | 94°F 1977 | 24°F 2009 | 16% |
| Dec 6 | 69°F | 47°F | 90°F 1953 | 23°F 1999 | 16% |
| Dec 7 | 69°F | 47°F | 98°F 1951 | 21°F 1950 | 16% |
| Dec 8 | 69°F | 46°F | 86°F 2007 | 23°F 1950 | 16% |
| Dec 9 | 69°F | 46°F | 86°F 1952 | 20°F 1916 | 16% |
| Dec 10 | 68°F | 46°F | 88°F 2021 | 20°F 1978 | 16% |
| Dec 11 | 68°F | 46°F | 92°F 1987 | 20°F 1978 | 16% |
| Dec 12 | 68°F | 45°F | 88°F 1949 | 20°F 1966 | 16% |
| Dec 13 | 68°F | 45°F | 85°F 2004 | 23°F 2010 | 16% |
| Dec 14 | 68°F | 45°F | 84°F 1933 | 23°F 1966 | 16% |
| Dec 15 | 68°F | 45°F | 91°F 2019 | 23°F 1916 | 16% |
| Dec 16 | 68°F | 45°F | 92°F 2019 | 21°F 1989 | 16% |
| Dec 17 | 68°F | 45°F | 82°F 1936 | 22°F 1932 | 17% |
| Dec 18 | 67°F | 45°F | 87°F 2016 | 20°F 1996 | 17% |
| Dec 19 | 67°F | 44°F | 87°F 2012 | 21°F 2019 | 17% |
| Dec 20 | 67°F | 44°F | 86°F 2012 | 21°F 2019 | 17% |
| Dec 21 | 67°F | 44°F | 89°F 1990 | 27°F 1989 | 17% |
| Dec 22 | 67°F | 44°F | 85°F 1981 | 18°F 1989 | 17% |
| Dec 23 | 67°F | 44°F | 84°F 2025 | 10°F 1989 | 18% |
| Dec 24 | 67°F | 44°F | 87°F 1955 | 14°F 1989 | 18% |
| Dec 25 | 67°F | 44°F | 91°F 1955 | 13°F 1983 | 18% |
| Dec 26 | 67°F | 44°F | 92°F 1955 | 14°F 1983 | 18% |
| Dec 27 | 66°F | 44°F | 87°F 1946 | 16°F 1983 | 18% |
| Dec 28 | 66°F | 44°F | 88°F 1946 | 17°F 1983 | 19% |
| Dec 29 | 66°F | 44°F | 83°F 2024 | 15°F 1983 | 19% |
| Dec 30 | 66°F | 43°F | 90°F 1951 | 13°F 1983 | 19% |
| Dec 31 | 66°F | 43°F | 94°F 2024 | 14°F 1983 | 19% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (CST).
- December 1
- sunrise 7:15 AM, sunset 5:42 PM
- December 31
- sunrise 7:32 AM, sunset 5:53 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00412160 (Crystal City), public domain. Records: NOAA GHCN-Daily, station USC00411486, 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.