Climate
Mesa weather by month
Average highs, lows, rain and snow for every month, from 30 years of weather records.
Average temperatures
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
Best time to visit: January, November, December, when highs are mild and rain is lightest.
Month by month
| Month | High | Low | Rain | Wet days |
|---|---|---|---|---|
| January | 71°F | 39°F | 1.0 in | 4 |
| February | 74°F | 41°F | 1.1 in | 5 |
| March | 80°F | 46°F | 1.0 in | 3 |
| April | 87°F | 51°F | 0.20 in | 1 |
| May | 95°F | 59°F | 0.20 in | 1 |
| June | 104°F | 67°F | 0.10 in | 1 |
| July | 106°F | 76°F | 1.0 in | 4 |
| August | 105°F | 75°F | 1.3 in | 5 |
| September | 101°F | 69°F | 0.70 in | 3 |
| October | 91°F | 56°F | 0.60 in | 2 |
| November | 79°F | 45°F | 0.70 in | 2 |
| December | 69°F | 38°F | 0.90 in | 4 |
NOAA U.S. Climate Normals 1991–2020, Tempe Asu, Az Us (5.7 mi away, 1,167 ft). Wet days: days with at least 0.01 in of precipitation.
Questions
What is the hottest month in Mesa?
July, with an average high of 106°F and low of 76°F.
What is the coldest month in Mesa?
December, with an average low of 38°F and high of 69°F.
When does it rain most in Mesa?
August is the wettest month, averaging 1.3 in of precipitation; the year totals about 8.8 inches.
What is the best time to visit Mesa?
For mild weather (highs between 65°F and 85°F) with the least rain, January, November, December.
Where do these numbers come from?
NOAA’s 1991–2020 U.S. Climate Normals for the Tempe Asu weather station, 5.7 miles from downtown: 30-year averages, not a forecast.