Mesa Climate by Month
Mesa, Arizona, United States
Very hot summers and mild winters, with little rain.
Very hot summers and mild winters, with little rain: that's Mesa's climate in short. July is the warmest month, with highs around 106°F (41°C); December is the coolest at 69°F (21°C), and nights dip to 42°F (5°C). It gets only 8.1 in (205 mm) of rain a year. April to June are almost completely dry. The air is dry, averaging 31% relative humidity.
- Warmest month
- 106°F(41°C)
- Average high, July
- Coldest nights
- 42°F(5°C)
- Average low, December
- Rain per year
- 8.1 in(205 mm)
- No clear rainy season
- Humidity
- 31%
- Sunniest: June
Best and worst months in Mesa
Best for weatherFebruary, March and November are the best time for weather in Mesa: highs near 76°F (25°C) and about 0.8 in (21 mm) of rain a month.
Least pleasantJuly and August are the least pleasant; July is the hottest, with highs of 106°F (41°C).
Comfort combines how close the afternoon high is to 75°F (24°C) with how much rain falls and how humid it is. See where the weather is best in November.
Temperature and rain through the year
Highs and lows (°F)
Average highAverage low
Rain (in per month)
Mesa weather by month
| Month | High | Low | Rain | Humidity | Sun |
|---|---|---|---|---|---|
| JanJanuary | 70°F(21°C) | 42°F(6°C) | 0.9 in(24 mm) | 39% | 3.2 |
| FebFebruaryBest | 72°F(22°C) | 44°F(7°C) | 0.9 in(24 mm) | 42% | 3.9 |
| MarMarchBest | 79°F(26°C) | 49°F(9°C) | 0.9 in(22 mm) | 35% | 5.5 |
| AprApril | 87°F(30°C) | 54°F(12°C) | 0.2 in(6 mm) | 24% | 6.8 |
| MayMay | 95°F(35°C) | 63°F(17°C) | 0.2 in(4 mm) | 21% | 7.7 |
| JunJune | 104°F(40°C) | 71°F(22°C) | 0.1 in(2 mm) | 18% | 8.0 |
| JulJuly | 106°F(41°C) | 78°F(26°C) | 0.9 in(23 mm) | 29% | 7.1 |
| AugAugust | 105°F(41°C) | 78°F(26°C) | 0.9 in(24 mm) | 34% | 6.4 |
| SepSeptember | 101°F(38°C) | 72°F(22°C) | 0.7 in(17 mm) | 30% | 5.8 |
| OctOctober | 91°F(33°C) | 60°F(16°C) | 0.7 in(18 mm) | 30% | 4.8 |
| NovNovemberBest | 78°F(26°C) | 48°F(9°C) | 0.6 in(16 mm) | 30% | 3.6 |
| DecDecember | 69°F(21°C) | 42°F(5°C) | 1.0 in(25 mm) | 40% | 3.0 |
1991–2020 averages. Sun is solar radiation in kWh/m² per day. Highlighted: the most comfortable months.
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