Pima County Weather in December
Average highs run from 53°F on December 1 to 50°F on December 31, and lows from 36°F to 33°F. Normal precipitation for the month is 1.88 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
- 50°F
- Average low
- 34°F
- Precipitation
- 1.88 in
- Snowfall
- 1.0 in
- Record high
- 85°FDec 22, 2025
- Record low
- 23°FDec 28, 2003
- Chance of a freeze
- 100%
- Daylight
- 10 h 12 min to 10 h 05 min
- Cloud cover
- 41%
- Humidity
- 47%
- Dew point
- 28°F
- Wind
- 7.8 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 | 53°F | 36°F | 83°F 2021 | 29°F 2015 | 13% | 2% |
| Dec 2 | 53°F | 36°F | 81°F 2021 | 29°F 2004 | 13% | 2% |
| Dec 3 | 52°F | 36°F | 79°F 2010 | 34°F 2004 | 14% | 2% |
| Dec 4 | 52°F | 35°F | 79°F 2015 | 32°F 2020 | 14% | 3% |
| Dec 5 | 52°F | 35°F | 81°F 2003 | 32°F 2011 | 14% | 3% |
| Dec 6 | 52°F | 35°F | 82°F 2023 | 27°F 2011 | 14% | 3% |
| Dec 7 | 51°F | 35°F | 77°F 2015 | 29°F 2011 | 14% | 3% |
| Dec 8 | 51°F | 34°F | 78°F 2010 | 28°F 2011 | 14% | 3% |
| Dec 9 | 51°F | 34°F | 79°F 2020 | 30°F 2011 | 14% | 3% |
| Dec 10 | 51°F | 34°F | 80°F 2015 | 31°F 2013 | 14% | 3% |
| Dec 11 | 51°F | 34°F | 79°F 2025 | 33°F 2012 | 14% | 3% |
| Dec 12 | 50°F | 34°F | 78°F 2004 | 35°F 2006 | 14% | 3% |
| Dec 13 | 50°F | 34°F | 82°F 2010 | 32°F 2003 | 14% | 3% |
| Dec 14 | 50°F | 33°F | 83°F 2025 | 30°F 2022 | 14% | 3% |
| Dec 15 | 50°F | 33°F | 81°F 2016 | 30°F 2015 | 14% | 3% |
| Dec 16 | 50°F | 33°F | 78°F 2024 | 26°F 2015 | 14% | 3% |
| Dec 17 | 50°F | 33°F | 81°F 2013 | 27°F 2015 | 14% | 3% |
| Dec 18 | 50°F | 33°F | 82°F 2023 | 30°F 2016 | 14% | 4% |
| Dec 19 | 50°F | 33°F | 82°F 2025 | 31°F 2006 | 14% | 4% |
| Dec 20 | 50°F | 33°F | 81°F 2025 | 26°F 2006 | 14% | 4% |
| Dec 21 | 50°F | 33°F | 82°F 2025 | 27°F 2006 | 14% | 4% |
| Dec 22 | 50°F | 33°F | 85°F 2025 | 26°F 2017 | 14% | 4% |
| Dec 23 | 50°F | 33°F | 83°F 2025 | 28°F 2007 | 14% | 4% |
| Dec 24 | 50°F | 33°F | 78°F 2024 | 30°F 2004 | 14% | 4% |
| Dec 25 | 50°F | 33°F | 78°F 2005 | 28°F 2009 | 14% | 4% |
| Dec 26 | 50°F | 33°F | 76°F 2022 | 28°F 2009 | 14% | 4% |
| Dec 27 | 50°F | 33°F | 78°F 2022 | 26°F 2015 | 14% | 4% |
| Dec 28 | 50°F | 33°F | 78°F 2017 | 23°F 2003 | 14% | 4% |
| Dec 29 | 50°F | 33°F | 80°F 2017 | 27°F 2003 | 14% | 4% |
| Dec 30 | 50°F | 33°F | 80°F 2017 | 28°F 2010 | 14% | 3% |
| Dec 31 | 50°F | 33°F | 77°F 2017 | 25°F 2010 | 14% | 3% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (MST).
- December 1
- sunrise 7:10 AM, sunset 5:22 PM
- December 31
- sunrise 7:28 AM, sunset 5:33 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00024675 (Kitt Peak), public domain. Records: NOAA GHCN-Daily, station USW00053131, 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.