Portales Weather in December
Average highs run from 58°F on December 1 to 53°F on December 31, and lows from 29°F to 25°F. Normal precipitation for the month is 0.66 in over about 4 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
- 55°F
- Average low
- 26°F
- Precipitation
- 0.66 in
- Snowfall
- 2.8 in
- Record high
- 91°FDec 25, 1919
- Record low
- -9°FDec 25, 1918
- Chance of a freeze
- 100%
- Daylight
- 10 h 03 min to 9 h 55 min
- Cloud cover
- 50%
- Humidity
- 56%
- Dew point
- 22°F
- Wind
- 10.1 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 | 58°F | 29°F | 77°F 2003 | 9°F 1985 | 12% | 2% |
| Dec 2 | 57°F | 28°F | 77°F 1942 | 8°F 1985 | 12% | 2% |
| Dec 3 | 57°F | 28°F | 74°F 1995 | 9°F 1985 | 12% | 2% |
| Dec 4 | 57°F | 28°F | 79°F 1917 | 16°F 1964 | 12% | 2% |
| Dec 5 | 57°F | 28°F | 78°F 2007 | 1°F 1972 | 12% | 2% |
| Dec 6 | 56°F | 27°F | 71°F 1946 | -4°F 1950 | 12% | 3% |
| Dec 7 | 56°F | 27°F | 75°F 1940 | 6°F 1927 | 12% | 3% |
| Dec 8 | 56°F | 27°F | 74°F 1933 | -1°F 2005 | 12% | 3% |
| Dec 9 | 56°F | 27°F | 78°F 1933 | -7°F 1978 | 12% | 3% |
| Dec 10 | 55°F | 27°F | 74°F 1939 | -4°F 1978 | 12% | 3% |
| Dec 11 | 55°F | 26°F | 78°F 1925 | 5°F 1917 | 12% | 3% |
| Dec 12 | 55°F | 26°F | 77°F 1921 | -4°F 1961 | 12% | 3% |
| Dec 13 | 55°F | 26°F | 78°F 1948 | -1°F 1985 | 12% | 3% |
| Dec 14 | 55°F | 26°F | 72°F 1929 | 5°F 1917 | 12% | 3% |
| Dec 15 | 54°F | 26°F | 74°F 1939 | -4°F 1987 | 12% | 3% |
| Dec 16 | 54°F | 26°F | 74°F 1939 | 4°F 1987 | 12% | 3% |
| Dec 17 | 54°F | 26°F | 76°F 1929 | 0°F 1913 | 12% | 3% |
| Dec 18 | 54°F | 25°F | 75°F 1980 | -3°F 1924 | 12% | 4% |
| Dec 19 | 54°F | 25°F | 76°F 1980 | -1°F 1924 | 12% | 4% |
| Dec 20 | 54°F | 25°F | 75°F 1933 | 3°F 1913 | 12% | 4% |
| Dec 21 | 54°F | 25°F | 78°F 1933 | -5°F 1913 | 12% | 4% |
| Dec 22 | 53°F | 25°F | 73°F 1981 | -8°F 1913 | 12% | 4% |
| Dec 23 | 53°F | 25°F | 73°F 1955 | -5°F 1990 | 12% | 4% |
| Dec 24 | 53°F | 25°F | 74°F 1955 | -5°F 1918 | 12% | 4% |
| Dec 25 | 53°F | 25°F | 91°F 1919 | -9°F 1918 | 12% | 4% |
| Dec 26 | 53°F | 25°F | 74°F 1955 | 2°F 1939 | 12% | 4% |
| Dec 27 | 53°F | 25°F | 72°F 1971 | -3°F 1987 | 12% | 4% |
| Dec 28 | 53°F | 25°F | 70°F 1955 | 4°F 1987 | 12% | 4% |
| Dec 29 | 53°F | 25°F | 73°F 1921 | -5°F 1913 | 12% | 4% |
| Dec 30 | 53°F | 25°F | 70°F 1965 | 0°F 1983 | 12% | 4% |
| Dec 31 | 53°F | 25°F | 73°F 1998 | -6°F 1918 | 12% | 4% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (MST).
- December 1
- sunrise 6:41 AM, sunset 4:44 PM
- December 31
- sunrise 6:59 AM, sunset 4:54 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00297008 (Portales), public domain. Records: NOAA GHCN-Daily, station USC00291939, 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 2026-09-25. Sun and moon: computed with the NOAA solar equations and Meeus.