Maricopa County · Arizona
Mesa, AZ weather averages
NOAA climate normals for 1991-2020, measured at Phoenix Ap, 14.5 km from the city centre — month by month temperature, rain and snow.
Quick answer
Mesa averages a daily high of 86.7°F and a daily low of 63.5°F across the year, with 8.03 inches of precipitation. July is the warmest month at 106.1°F and December the coldest at 44.8°F.
- Average annual high
- 86.7°FWarmest month July
- Average annual low
- 63.5°FColdest month December
- Precipitation per year
- 8.03 inWettest month July
- Snowfall per year
- —0.4 days at or below 32°F
Mesa weather month by month
Normal daily high and low, precipitation and snowfall for each month, 1991-2020.
| Month | High °F | Low °F | Precip in | Snow in | Range |
|---|---|---|---|---|---|
| January | 67.2 | 45.6 | 0.91 | 0 | 45.6 to 67.2 degrees |
| February | 70.7 | 48.7 | 0.92 | 0 | 48.7 to 70.7 degrees |
| March | 76.9 | 53.5 | 0.99 | 0 | 53.5 to 76.9 degrees |
| April | 85.2 | 60.2 | 0.28 | 0 | 60.2 to 85.2 degrees |
| May | 94.8 | 69.4 | 0.11 | 0 | 69.4 to 94.8 degrees |
| June | 103.9 | 77.7 | 0.02 | 0 | 77.7 to 103.9 degrees |
| July | 106.1 | 83.5 | 1.05 | 0 | 83.5 to 106.1 degrees |
| August | 104.4 | 82.7 | 1 | 0 | 82.7 to 104.4 degrees |
| September | 99.8 | 76.9 | 0.64 | 0 | 76.9 to 99.8 degrees |
| October | 88.5 | 64.8 | 0.58 | 0 | 64.8 to 88.5 degrees |
| November | 75.5 | 52.7 | 0.65 | 0 | 52.7 to 75.5 degrees |
| December | 66 | 44.8 | 0.88 | 0 | 44.8 to 66 degrees |
Source: NOAA NCEI, U.S. Climate Normals 1991-2020 — station USW00023183, Phoenix Ap · rates as published for 1991-2020 normals
How to read Mesa climate normals
What a climate normal is, and what it is not.
A normal is the average of thirty years of daily observations at one station — here Phoenix Ap, 14.5 km from the centre of Mesa. It describes a typical year, so any single year will run warmer, cooler, wetter or drier. Readings taken at an airport on the edge of town usually sit a degree or two below a dense downtown on summer nights. Mesa sees about 168.8 days a year at or above 90°F and about 18.7 days with a tenth of an inch of precipitation or more.
Keep going
Other Mesa data on this site.