Ajo Weather in December
Average highs run from 70°F on December 1 to 66°F on December 31, and lows from 45°F to 44°F. Normal precipitation for the month is 0.62 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
- 67°F
- Average low
- 43°F
- Precipitation
- 0.62 in
- Record high
- 90°FDec 2, 1940
- Record low
- 15°FDec 26, 1911
- Chance of a freeze
- 53%
- Daylight
- 10 h 11 min to 10 h 04 min
- Cloud cover
- 38%
- Humidity
- 45%
- Dew point
- 29°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 | 70°F | 45°F | 87°F 1940 | 28°F 1911 | 6% | 0% |
| Dec 2 | 70°F | 45°F | 90°F 1940 | 28°F 1934 | 6% | 0% |
| Dec 3 | 70°F | 45°F | 90°F 1940 | 24°F 1934 | 6% | 0% |
| Dec 4 | 69°F | 44°F | 87°F 1979 | 29°F 1999 | 6% | 0% |
| Dec 5 | 69°F | 44°F | 89°F 1949 | 26°F 1934 | 6% | 0% |
| Dec 6 | 68°F | 44°F | 85°F 1949 | 26°F 2005 | 6% | 0% |
| Dec 7 | 68°F | 44°F | 85°F 1939 | 22°F 1960 | 7% | 0% |
| Dec 8 | 68°F | 44°F | 86°F 1939 | 22°F 1978 | 7% | 0% |
| Dec 9 | 67°F | 44°F | 86°F 1939 | 22°F 1960 | 7% | 0% |
| Dec 10 | 67°F | 43°F | 83°F 1938 | 22°F 1916 | 7% | 0% |
| Dec 11 | 67°F | 43°F | 87°F 1950 | 23°F 1916 | 7% | 0% |
| Dec 12 | 67°F | 43°F | 85°F 1950 | 23°F 1960 | 7% | 0% |
| Dec 13 | 66°F | 43°F | 83°F 1895 | 23°F 1968 | 7% | 0% |
| Dec 14 | 66°F | 43°F | 85°F 1925 | 23°F 1916 | 7% | 0% |
| Dec 15 | 66°F | 43°F | 82°F 1925 | 23°F 1911 | 7% | 0% |
| Dec 16 | 66°F | 43°F | 84°F 1925 | 20°F 1967 | 8% | 0% |
| Dec 17 | 66°F | 43°F | 83°F 1925 | 22°F 1892 | 8% | 0% |
| Dec 18 | 66°F | 43°F | 84°F 1925 | 23°F 1930 | 8% | 0% |
| Dec 19 | 65°F | 43°F | 84°F 1925 | 22°F 1968 | 8% | 0% |
| Dec 20 | 65°F | 43°F | 83°F 2024 | 22°F 1930 | 8% | 0% |
| Dec 21 | 65°F | 43°F | 81°F 2025 | 22°F 1928 | 8% | 0% |
| Dec 22 | 65°F | 43°F | 84°F 1917 | 22°F 1968 | 8% | 0% |
| Dec 23 | 65°F | 43°F | 79°F 1917 | 19°F 1990 | 8% | 0% |
| Dec 24 | 65°F | 43°F | 81°F 2005 | 23°F 1998 | 8% | 0% |
| Dec 25 | 65°F | 43°F | 80°F 1950 | 18°F 1911 | 8% | 0% |
| Dec 26 | 65°F | 43°F | 86°F 1955 | 15°F 1911 | 8% | 0% |
| Dec 27 | 65°F | 43°F | 84°F 1955 | 23°F 1911 | 8% | 0% |
| Dec 28 | 65°F | 43°F | 80°F 1917 | 21°F 1954 | 7% | 0% |
| Dec 29 | 65°F | 43°F | 83°F 1980 | 22°F 1988 | 7% | 0% |
| Dec 30 | 66°F | 43°F | 82°F 1980 | 22°F 1954 | 7% | 0% |
| Dec 31 | 66°F | 44°F | 83°F 1917 | 20°F 1911 | 7% | 0% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (MST).
- December 1
- sunrise 7:15 AM, sunset 5:26 PM
- December 31
- sunrise 7:33 AM, sunset 5:37 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00020080 (Ajo), public domain. Records: NOAA GHCN-Daily, station USC00023393, 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.