El Valle de Arroyo Seco Weather in December
Average highs run from 49°F on December 1 to 43°F on December 31, and lows from 18°F to 14°F. Normal precipitation for the month is 0.73 in over about 3 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
- 45°F
- Average low
- 15°F
- Precipitation
- 0.73 in
- Snowfall
- 3.3 in
- Record high
- 64°FDec 27, 1980
- Record low
- -13°FDec 9, 1978
- Chance of a freeze
- 100%
- Daylight
- 9 h 54 min to 9 h 46 min
- Cloud cover
- 49%
- Humidity
- 68%
- Dew point
- 16°F
- Wind
- 6.7 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 | 49°F | 18°F | 61°F 1926 | 5°F 1991 | 10% | 4% |
| Dec 2 | 48°F | 18°F | 61°F 2008 | 5°F 1991 | 10% | 4% |
| Dec 3 | 48°F | 17°F | 59°F 1977 | 1°F 2009 | 10% | 4% |
| Dec 4 | 47°F | 17°F | 60°F 1918 | -2°F 2009 | 10% | 4% |
| Dec 5 | 47°F | 17°F | 60°F 1939 | -1°F 2011 | 10% | 4% |
| Dec 6 | 47°F | 17°F | 58°F 1939 | -3°F 2011 | 10% | 4% |
| Dec 7 | 46°F | 17°F | 61°F 1981 | -2°F 1978 | 10% | 5% |
| Dec 8 | 46°F | 16°F | 60°F 1981 | -8°F 1978 | 10% | 5% |
| Dec 9 | 46°F | 16°F | 60°F 1981 | -13°F 1978 | 11% | 5% |
| Dec 10 | 45°F | 16°F | 58°F 1981 | -3°F 1951 | 11% | 5% |
| Dec 11 | 45°F | 16°F | 59°F 1939 | 2°F 1919 | 11% | 5% |
| Dec 12 | 45°F | 16°F | 62°F 1933 | -9°F 1961 | 11% | 5% |
| Dec 13 | 45°F | 15°F | 57°F 1942 | -4°F 1931 | 11% | 5% |
| Dec 14 | 44°F | 15°F | 56°F 1950 | 2°F 1931 | 11% | 5% |
| Dec 15 | 44°F | 15°F | 58°F 2016 | 2°F 1992 | 11% | 5% |
| Dec 16 | 44°F | 15°F | 57°F 1980 | 0°F 1927 | 11% | 6% |
| Dec 17 | 44°F | 15°F | 60°F 1980 | -3°F 1996 | 11% | 6% |
| Dec 18 | 44°F | 15°F | 59°F 1939 | -11°F 1996 | 11% | 6% |
| Dec 19 | 43°F | 14°F | 59°F 1942 | 0°F 1927 | 11% | 6% |
| Dec 20 | 43°F | 14°F | 59°F 1939 | 2°F 1928 | 11% | 6% |
| Dec 21 | 43°F | 14°F | 58°F 2025 | -1°F 1967 | 11% | 6% |
| Dec 22 | 43°F | 14°F | 59°F 2025 | -3°F 1989 | 11% | 6% |
| Dec 23 | 43°F | 14°F | 57°F 2025 | -10°F 1990 | 11% | 6% |
| Dec 24 | 43°F | 14°F | 58°F 2025 | -10°F 1924 | 11% | 6% |
| Dec 25 | 43°F | 14°F | 55°F 2025 | -9°F 1924 | 11% | 6% |
| Dec 26 | 43°F | 14°F | 61°F 1980 | 0°F 1918 | 11% | 6% |
| Dec 27 | 43°F | 14°F | 64°F 1980 | 0°F 1939 | 11% | 6% |
| Dec 28 | 43°F | 14°F | 58°F 1980 | 0°F 1983 | 11% | 6% |
| Dec 29 | 43°F | 14°F | 54°F 2024 | 0°F 1982 | 11% | 6% |
| Dec 30 | 43°F | 14°F | 55°F 2017 | 1°F 1990 | 11% | 6% |
| Dec 31 | 43°F | 14°F | 58°F 1980 | -4°F 2010 | 11% | 6% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (MST).
- December 1
- sunrise 6:56 AM, sunset 4:50 PM
- December 31
- sunrise 7:14 AM, sunset 5:00 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00290245 (Alcalde), public domain. Records: NOAA GHCN-Daily, station USC00295084, 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.