Delta County Weather in December
Average highs run from 35°F on December 1 to 27°F on December 31, and lows from 21°F to 11°F. Normal precipitation for the month is 1.77 in.
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
- 30°F
- Average low
- 16°F
- Precipitation
- 1.77 in
- Snowfall
- 10.2 in
- Record high
- 58°FDec 6, 2001
- Record low
- -23°FDec 28, 1880
- Chance of a freeze
- 100%
- Daylight
- 8 h 57 min to 8 h 44 min
- Cloud cover
- 80%
- Humidity
- 91%
- Dew point
- 21°F
- Wind
- 7.6 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 | 35°F | 21°F | 55°F 1998 | -7°F 1896 | 9% | |
| Dec 2 | 34°F | 20°F | 53°F 1982 | -5°F 1893 | 9% | |
| Dec 3 | 34°F | 20°F | 52°F 1982 | -9°F 1919 | 9% | |
| Dec 4 | 33°F | 20°F | 57°F 1961 | -5°F 1893 | 9% | |
| Dec 5 | 33°F | 19°F | 56°F 2001 | 0°F 1958 | 9% | |
| Dec 6 | 33°F | 19°F | 58°F 2001 | -6°F 1885 | 10% | |
| Dec 7 | 32°F | 19°F | 48°F 1905 | -13°F 1972 | 10% | |
| Dec 8 | 32°F | 18°F | 46°F 1923 | -12°F 1882 | 10% | |
| Dec 9 | 32°F | 18°F | 56°F 1939 | -20°F 1927 | 10% | |
| Dec 10 | 32°F | 18°F | 44°F 1896 | -10°F 1919 | 10% | |
| Dec 11 | 31°F | 17°F | 50°F 1949 | -8°F 1972 | 11% | |
| Dec 12 | 31°F | 17°F | 54°F 1891 | -8°F 1995 | 11% | |
| Dec 13 | 31°F | 17°F | 49°F 1920 | -15°F 1903 | 11% | |
| Dec 14 | 31°F | 16°F | 48°F 1920 | -13°F 1903 | 11% | |
| Dec 15 | 30°F | 16°F | 46°F 1998 | -17°F 1926 | 12% | |
| Dec 16 | 30°F | 16°F | 50°F 1913 | -13°F 1901 | 12% | |
| Dec 17 | 30°F | 16°F | 47°F 1997 | -12°F 1884 | 12% | |
| Dec 18 | 30°F | 15°F | 50°F 1931 | -13°F 1983 | 13% | |
| Dec 19 | 29°F | 15°F | 43°F 1997 | -15°F 1983 | 13% | |
| Dec 20 | 29°F | 15°F | 46°F 1923 | -14°F 1989 | 13% | |
| Dec 21 | 29°F | 14°F | 48°F 1875 | -14°F 1989 | 14% | |
| Dec 22 | 29°F | 14°F | 47°F 1890 | -14°F 1924 | 14% | |
| Dec 23 | 29°F | 14°F | 45°F 1877 | -18°F 1983 | 14% | |
| Dec 24 | 28°F | 14°F | 44°F 1877 | -10°F 1983 | 15% | |
| Dec 25 | 28°F | 13°F | 45°F 1889 | -15°F 1933 | 15% | |
| Dec 26 | 28°F | 13°F | 47°F 1889 | -14°F 1879 | 15% | |
| Dec 27 | 28°F | 13°F | 46°F 1936 | -17°F 1933 | 16% | |
| Dec 28 | 28°F | 12°F | 41°F 1881 | -23°F 1880 | 16% | |
| Dec 29 | 27°F | 12°F | 41°F 1884 | -20°F 1880 | 16% | |
| Dec 30 | 27°F | 12°F | 45°F 1936 | -23°F 1976 | 17% | |
| Dec 31 | 27°F | 11°F | 49°F 1965 | -15°F 1967 | 17% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (EST).
- December 1
- sunrise 8:08 AM, sunset 5:05 PM
- December 31
- sunrise 8:29 AM, sunset 5:13 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00206840 (Rapid Rvr 4SSE), public domain. Records: NOAA GHCN-Daily, station USW00014824, 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.