Mesa weather in December: Mesa, Arizona: normal highs, lows, rain and records for December
Mesa in December has a normal high of 66°F and a normal low of 40°F, a daily mean of 53°F, falling from 69°F on the 1st to 66°F by the 31st. Measurable precipitation falls on 5 days in a normal December, 1.11 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 19°C and low of 5°C, 28 mm of precipitation in December.
- NOAA stationEast Mesa
- Station IDUSC00022782
- Location33.42°N 111.64°W
- Elevation1,518 ft (463 m)
- From the center4 miles
- Population517,151
- Jan 68° 41°
- Feb 70° 43°
- Mar 77° 48°
- Apr 85° 53°
- May 94° 62°
- Jun 104° 71°
- Jul 106° 79°
- Aug 105° 78°
- Sep 100° 71°
- Oct 90° 59°
- Nov 77° 48°
- Dec 66° 40°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Mesa in December?
The normal high is 66°F and the normal low 40°F, for a daily mean of 53.1°F. December is 9.1°F cooler than November and 1.1°F cooler than January. December is the 12th warmest month of the year in Mesa and the 7th wettest. Across the month the normal high falls 3°F, from 69°F on December 1 to 66°F on December 31. From one year to the next December's mean temperature typically moves about 2.0°F either way (NOAA's standard deviation), so roughly two Decembers in three average between 51°F and 55°F.
Bars above: each day's normal high to low. Columns below: the chance of 0.01 inch or more of precipitation that day, on a scale of 0 to 100% (highest 14%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| December 1 | 69°F | 42°F | 11% | 7% |
| December 8 | 67°F | 40°F | 13% | 8% |
| December 15 | 65°F | 40°F | 14% | 9% |
| December 22 | 65°F | 40°F | 14% | 9% |
| December 31 | 66°F | 40°F | 14% | 8% |
Every day of December: normal high, low and chance of precipitation (warmest afternoon December 1, coldest night December 16)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| December 1 | 69°F | 42°F | 11% | 7% | 10 h 10 min |
| December 2 | 69°F | 42°F | 12% | 7% | 10 h 10 min |
| December 3 | 69°F | 42°F | 12% | 7% | 10 h 10 min |
| December 4 | 68°F | 41°F | 12% | 7% | 10 h |
| December 5 | 68°F | 41°F | 12% | 8% | 10 h |
| December 6 | 67°F | 41°F | 13% | 8% | 10 h |
| December 7 | 67°F | 41°F | 13% | 8% | 10 h |
| December 8 | 67°F | 40°F | 13% | 8% | 10 h |
| December 9 | 67°F | 40°F | 13% | 8% | 10 h |
| December 10 | 66°F | 40°F | 13% | 8% | 10 h |
| December 11 | 66°F | 40°F | 14% | 9% | 10 h |
| December 12 | 66°F | 40°F | 14% | 9% | 10 h |
| December 13 | 66°F | 40°F | 14% | 9% | 10 h |
| December 14 | 66°F | 40°F | 14% | 9% | 10 h |
| December 15 | 65°F | 40°F | 14% | 9% | 10 h |
| December 16 | 65°F | 40°F | 14% | 9% | 10 h |
| December 17 | 65°F | 40°F | 14% | 9% | 10 h |
| December 18 | 65°F | 40°F | 14% | 9% | 10 h |
| December 19 | 65°F | 40°F | 14% | 9% | 10 h |
| December 20 | 65°F | 40°F | 14% | 9% | 10 h |
| December 21 | 65°F | 40°F | 14% | 9% | 10 h |
| December 22 | 65°F | 40°F | 14% | 9% | 10 h |
| December 23 | 65°F | 40°F | 14% | 9% | 10 h |
| December 24 | 65°F | 40°F | 14% | 9% | 10 h |
| December 25 | 65°F | 40°F | 14% | 9% | 10 h |
| December 26 | 65°F | 40°F | 14% | 9% | 10 h |
| December 27 | 65°F | 40°F | 14% | 9% | 10 h |
| December 28 | 65°F | 40°F | 14% | 9% | 10 h |
| December 29 | 66°F | 40°F | 14% | 8% | 10 h |
| December 30 | 66°F | 40°F | 14% | 8% | 10 h |
| December 31 | 66°F | 40°F | 14% | 8% | 10 h |
- Normal high
- 66°FDecember average
- Normal low
- 40°FDecember average
- Precipitation
- 1.11 inmonth total
- Days with precipitation
- 50.01 inch or more
- Nights at 32°F or colder
- 5
- Daylight
- 10 h 10 min to 10 hDecember 1 to December 31
- Days at 70°F or more
- 11
- Days at 80°F or more
- 1
- Sunshine
- 84%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USC00022782; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Mesa in December?
On a given December day the chance of 0.01 inch or more is 14% on average, highest around December 17 (14%). In all, 1.11 in falls on 5 days of a normal December.
In a normal December in Mesa, 5 nights fall to freezing.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USC00022782.
What are the records for December in Mesa?
The warmest December temperature on this station's record (since 2002) is 85°F, on December 2, 2017; the coldest is 24°F, on December 29, 2003. The wettest December brought 2.70 in (2021).
The December mean against the 1991-2020 normal of 53.1°F: 2021 56.9°F (+3.8), 2022 52.9°F (−0.2), 2023 56.9°F (+3.8), 2024 58.2°F (+5.1), 2025 59.9°F (+6.8). 4 of 5 ran warmer than normal.
| December | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 56.9°F | +3.8°F | 2.70 in |
| 2022 | 52.9°F | −0.2°F | 2.53 in |
| 2023 | 56.9°F | +3.8°F | 1.95 in |
| 2024 | 58.2°F | +5.1°F | 0.02 in |
| 2025 | 59.9°F | +6.8°F | 0.11 in |
Source: records: ACIS, station USC00022782; recent months: ACIS, station USC00022782. Records and recent months use complete months only.
How does December in Mesa compare across Arizona?
Across the 97 places PlainClimate covers in Arizona, December normal highs run from 41°F in Lukachukai to 70°F in Gila Bend; Mesa's is 66°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.