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Mesa, AZ Weather by Month and Climate Averages
Monthly normals · Rain · Snow
Sunshine · Freeze dates · Records · Best time to visit
What is the weather like in Mesa, AZ?
Mesa, AZ gets 8.8 in of precipitation a year over about 34 rainy days. July is the warmest month (average high 105°F) and December the coldest (average low 40°F).
Desert climate
Mesa, AZ has hot summers and warm winters. Daytime highs range from about 69°F in December to 105°F in July. August is usually the wettest month. The most comfortable time to visit is typically January to March and November to December, when daytime highs sit near 74°F.
| Season | Months | Avg low | Avg high |
|---|---|---|---|
| Winter | Dec–Feb | 41° | 71° |
| Spring | Mar–May | 55° | 87° |
| Summer | Jun–Aug | 75° | 104° |
| Autumn | Sep–Nov | 59° | 90° |
How much rain does Mesa get?
Mesa gets 8.8 in of precipitation in an average year, spread over about 34 days with measurable rain. That is fewer rainy days than 91% of the US.
August is the wettest month, with 1.3 in. June is the driest, with 0.1 in. February has the most rainy days, about 5.
The longest dry spell in the last five years lasted 59 days, to June 20, 2024.
From September 2025 to August 2026 Mesa got 9.8 in of rain, against a normal of 8.8 in for those months. October 2025 had the most, with 3.3 in.
See where Mesa ranks: rainiest cities in the US, US cities with the most rainy days, rainiest cities in Arizona.
Mesa weather by month
Mesa weather in January
In January, Mesa averages a high of 70°F and a low of 41°F. It gets 1.0 in of precipitation over about 4 rainy days. Estimated sunshine is 62% of daylight hours, derived from ERA5 cloud cover. The January record high is 87°F (1971) and the record low is 18°F (2013). January is one of the most comfortable months to visit.
Mesa weather in February
In February, Mesa averages a high of 73°F and a low of 43°F. It gets 1.1 in of precipitation over about 5 rainy days. Estimated sunshine is 69% of daylight hours, derived from ERA5 cloud cover. The February record high is 94°F (2026) and the record low is 21°F (2011). February is one of the most comfortable months to visit.
Mesa weather in March
In March, Mesa averages a high of 80°F and a low of 48°F. It gets 1.0 in of precipitation over about 3 rainy days. Estimated sunshine is 65% of daylight hours, derived from ERA5 cloud cover. The March record high is 105°F (2026) and the record low is 24°F (1971). March is one of the most comfortable months to visit.
Mesa weather in April
In April, Mesa averages a high of 86°F and a low of 54°F. It gets 0.2 in of precipitation over about 1 rainy days. Estimated sunshine is 82% of daylight hours, derived from ERA5 cloud cover. The April record high is 105°F (1989) and the record low is 30°F (1977).
Mesa weather in May
In May, Mesa averages a high of 94°F and a low of 62°F. It gets 0.2 in of precipitation over about 1 rainy days. Estimated sunshine is 87% of daylight hours, derived from ERA5 cloud cover. The May record high is 112°F (1974) and the record low is 35°F (1975).
Mesa weather in June
In June, Mesa averages a high of 103°F and a low of 70°F. It gets 0.1 in of precipitation over about 1 rainy days. Estimated sunshine is 79% of daylight hours, derived from ERA5 cloud cover. The June record high is 119°F (1970) and the record low is 45°F (1971).
Mesa weather in July
In July, Mesa averages a high of 105°F and a low of 78°F. It gets 1.0 in of precipitation over about 4 rainy days. Estimated sunshine is 58% of daylight hours, derived from ERA5 cloud cover. The July record high is 118°F (1970) and the record low is 58°F (1978).
Mesa weather in August
In August, Mesa averages a high of 104°F and a low of 77°F. It gets 1.3 in of precipitation over about 4 rainy days. Estimated sunshine is 60% of daylight hours, derived from ERA5 cloud cover. The August record high is 119°F (1972) and the record low is 54°F (1978).
Mesa weather in September
In September, Mesa averages a high of 100°F and a low of 71°F. It gets 0.7 in of precipitation over about 3 rainy days. Estimated sunshine is 79% of daylight hours, derived from ERA5 cloud cover. The September record high is 115°F (2024) and the record low is 47°F (1978).
Mesa weather in October
In October, Mesa averages a high of 90°F and a low of 59°F. It gets 0.6 in of precipitation over about 2 rainy days. Estimated sunshine is 82% of daylight hours, derived from ERA5 cloud cover. The October record high is 112°F (2024) and the record low is 26°F (1971).
Mesa weather in November
In November, Mesa averages a high of 78°F and a low of 47°F. It gets 0.7 in of precipitation over about 2 rainy days. Estimated sunshine is 74% of daylight hours, derived from ERA5 cloud cover. The November record high is 98°F (2020) and the record low is 26°F (1979). November is one of the most comfortable months to visit.
Mesa weather in December
In December, Mesa averages a high of 69°F and a low of 40°F. It gets 0.9 in of precipitation over about 4 rainy days. Estimated sunshine is 65% of daylight hours, derived from ERA5 cloud cover. The December record high is 88°F (2017) and the record low is 22°F (1993). December is one of the most comfortable months to visit.
Sunshine, humidity and wind in Mesa
May is the sunniest month in Mesa, with estimated sunshine of 87% of daylight hours from ERA5 cloud cover. July is the cloudiest, at 58%. The annual cloud-cover estimate is 72% of daylight hours; it is not a measurement of sunshine duration. Mesa is sunnier than 99% of the US.
Humidity peaks in January at 49% and is lowest in May at 15%.
Mesa has about 165 days a year above 90°F. Mesa is hotter than 99% of the US.
See where Mesa ranks: sunniest cities in the US, cloudiest cities in the US, hottest cities in the US.
First and last freeze in Mesa
The first fall freeze in Mesa typically comes around December 5, and the last spring freeze around February 9. That leaves a frost-free growing season of about 299 days.
Mesa weather records
These records cover TEMPE ASU during 1970–2026. Earlier records or other stations in the city may differ.
The hottest temperature on record at the Mesa station is 119°F, on June 26, 1970. The coldest is 18°F, on January 13, 2013.
The wettest day in the available station history brought 3.1 in of precipitation, on September 8, 2014.
40 all-time records have been set at the station since 1970.
The annual mean temperature has changed by +0.7°F per decade since 1970.
The best time to visit Mesa
The most comfortable time to visit is typically January to March and November to December, when daytime highs sit near 74°F.
Winter (December–February) is warm, with average highs around 71°F and lows near 41°F.
Spring (March–May) is hot, with average highs around 87°F and lows near 55°F.
Summer (June–August) is hot, with average highs around 104°F and lows near 75°F.
Autumn (September–November) is hot, with average highs around 90°F and lows near 59°F.
Monthly climate
| Month | Average low | Average high | Precip | Rain days | Humidity | Estimated sunshine | Record high | Record low |
|---|---|---|---|---|---|---|---|---|
| January | 41° | 70° | 1.0 in | 4 | 49% | 62% | 87° | 18° |
| February | 43° | 73° | 1.1 in | 5 | 39% | 69% | 94° | 21° |
| March | 48° | 80° | 0.96 in | 3 | 36% | 65% | 105° | 24° |
| April | 54° | 86° | 0.23 in | 1 | 19% | 82% | 105° | 30° |
| May | 62° | 94° | 0.18 in | 1 | 15% | 87% | 112° | 35° |
| June | 70° | 103° | 0.06 in | 1 | 15% | 79% | 119° | 45° |
| July | 78° | 105° | 0.99 in | 4 | 26% | 58% | 118° | 58° |
| August | 77° | 104° | 1.3 in | 4 | 32% | 60% | 119° | 54° |
| September | 71° | 100° | 0.71 in | 3 | 26% | 79% | 115° | 47° |
| October | 59° | 90° | 0.61 in | 2 | 25% | 82% | 112° | 26° |
| November | 47° | 78° | 0.65 in | 2 | 30% | 74% | 98° | 26° |
| December | 40° | 69° | 0.95 in | 4 | 41% | 65% | 88° | 22° |
Station: TEMPE ASU, 9 km from the city. Temperature normal baseline: 1991–2020, calculated from available NOAA GHCN-Daily observations. Available station history: 1970–2026; record values refer to this station and period, not the entire city’s history. Precipitation includes rain and the water equivalent of frozen precipitation; snowfall depth is shown separately when available. Sources and methods
From ERA5 reanalysis. Sunshine is estimated from cloud cover.
Mesa climate questions
How much rain does Mesa get?
Mesa gets 8.8 in of precipitation in an average year, over about 34 rainy days.
What is the wettest month in Mesa?
August is the wettest month in Mesa, with 1.3 in. June is the driest, with 0.1 in.
How many rainy days does Mesa have a year?
Mesa has about 34 days with measurable rain in an average year. February has the most, about 5.
What is the hottest month in Mesa?
July is the warmest month in Mesa, with an average high of 105°F.
What is the coldest month in Mesa?
December is the coldest month in Mesa, with an average low of 40°F.
What is the record high temperature in Mesa?
Within the available 1970–2026 station history, the record high at the Mesa station is 119°F, set on June 26, 1970. The record low is 18°F, on January 13, 2013.
What is the sunniest month in Mesa?
May is the sunniest month in Mesa, with estimated sunshine of 87% of daylight hours from ERA5 cloud cover. July is the cloudiest.
When is the first frost in Mesa?
The first fall freeze in Mesa typically comes around December 5. The last spring freeze is around February 9.
What is the best time to visit Mesa?
The most comfortable time to visit is typically January to March and November to December, when daytime highs sit near 74°F.