Monthly normals · Rain · Snow Sunshine · Freeze dates · Records · Best time to visit
What is the weather like in Tucson, AZ?
Tucson, AZ gets 10.6 in of precipitation a year over about 47 rainy days. June is the warmest month (average high 101°F) and January the coldest (average low 40°F).
Station: TUCSON INTL AP, 10 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.
Desert climate
Tucson, AZ has hot summers and mild winters. Daytime highs range from about 66°F in December to 101°F in June. July is usually the wettest month, and snow falls in winter. The most comfortable time to visit is typically January to March and November to December, when daytime highs sit near 71°F.
Season
Months
Avg low
Avg high
Winter
Dec–Feb
41°
67°
Spring
Mar–May
54°
84°
Summer
Jun–Aug
73°
100°
Autumn
Sep–Nov
58°
86°
How much rain does Tucson get?
Tucson gets 10.6 in of precipitation in an average year, spread over about 47 days with measurable rain. That is fewer rainy days than 84% of the US.
July is the wettest month, with 2.2 in. May is the driest, with 0.2 in. July has the most rainy days, about 9.
The longest dry spell in the last five years lasted 86 days, to January 28, 2025.
From September 2025 to August 2026 Tucson got 11.6 in of rain, against a normal of 10.6 in for those months. August 2026 had the most, with 3.1 in.
Monthly rainfall, September 2025 to August 2026, in inches. The dash on each month marks its 1991–2020 normal.
In January, Tucson averages a high of 67°F and a low of 40°F. It gets 0.8 in of precipitation over about 4 rainy days. Estimated sunshine is 66% of daylight hours, derived from ERA5 cloud cover. The January record high is 87°F (1999) and the record low is 17°F (1971). January is one of the most comfortable months to visit.
Tucson weather in February
In February, Tucson averages a high of 70°F and a low of 43°F. It gets 0.8 in of precipitation over about 4 rainy days. Estimated sunshine is 70% of daylight hours, derived from ERA5 cloud cover. The February record high is 91°F (2009) and the record low is 18°F (2011). February is one of the most comfortable months to visit.
Tucson weather in March
In March, Tucson averages a high of 76°F and a low of 47°F. It gets 0.6 in of precipitation over about 3 rainy days. Estimated sunshine is 66% of daylight hours, derived from ERA5 cloud cover. The March record high is 102°F (2026) and the record low is 22°F (1971). March is one of the most comfortable months to visit.
Tucson weather in April
In April, Tucson averages a high of 83°F and a low of 53°F. It gets 0.2 in of precipitation over about 2 rainy days. Estimated sunshine is 82% of daylight hours, derived from ERA5 cloud cover. The April record high is 104°F (1989) and the record low is 32°F (2023).
Tucson weather in May
In May, Tucson averages a high of 92°F and a low of 61°F. It gets 0.2 in of precipitation over about 1 rainy days. Estimated sunshine is 88% of daylight hours, derived from ERA5 cloud cover. The May record high is 109°F (2005) and the record low is 40°F (1988).
Tucson weather in June
In June, Tucson averages a high of 101°F and a low of 70°F. It gets 0.2 in of precipitation over about 2 rainy days. Estimated sunshine is 75% of daylight hours, derived from ERA5 cloud cover. The June record high is 117°F (1990) and the record low is 50°F (1971).
Tucson weather in July
In July, Tucson averages a high of 101°F and a low of 76°F. It gets 2.2 in of precipitation over about 9 rainy days. Estimated sunshine is 52% of daylight hours, derived from ERA5 cloud cover. The July record high is 114°F (1989) and the record low is 59°F (1992).
Tucson weather in August
In August, Tucson averages a high of 99°F and a low of 74°F. It gets 2.0 in of precipitation over about 9 rainy days. Estimated sunshine is 55% of daylight hours, derived from ERA5 cloud cover. The August record high is 112°F (1993) and the record low is 63°F (1979).
Tucson weather in September
In September, Tucson averages a high of 95°F and a low of 70°F. It gets 1.3 in of precipitation over about 4 rainy days. Estimated sunshine is 77% of daylight hours, derived from ERA5 cloud cover. The September record high is 111°F (2023) and the record low is 53°F (1988).
Tucson weather in October
In October, Tucson averages a high of 87°F and a low of 58°F. It gets 0.7 in of precipitation over about 3 rainy days. Estimated sunshine is 82% of daylight hours, derived from ERA5 cloud cover. The October record high is 106°F (2024) and the record low is 26°F (1971).
Tucson weather in November
In November, Tucson averages a high of 75°F and a low of 47°F. It gets 0.6 in of precipitation over about 3 rainy days. Estimated sunshine is 73% of daylight hours, derived from ERA5 cloud cover. The November record high is 94°F (2020) and the record low is 23°F (2010). November is one of the most comfortable months to visit.
Tucson weather in December
In December, Tucson averages a high of 66°F and a low of 40°F. It gets 1.0 in of precipitation over about 4 rainy days. Estimated sunshine is 70% of daylight hours, derived from ERA5 cloud cover. The December record high is 85°F (2021) and the record low is 16°F (1974). December is one of the most comfortable months to visit.
Sunshine, humidity and wind in Tucson
May is the sunniest month in Tucson, with estimated sunshine of 88% of daylight hours from ERA5 cloud cover. July is the cloudiest, at 52%. The annual cloud-cover estimate is 71% of daylight hours; it is not a measurement of sunshine duration. Tucson is sunnier than 99% of the US.
Humidity peaks in January at 44% and is lowest in May at 16%.
Wind averages 7 mph over the year, and April is the windiest month at 8 mph.
Tucson has about 151 days a year above 90°F. Tucson is hotter than 99% of the US.
The first fall freeze in Tucson typically comes around November 30, and the last spring freeze around February 15. That leaves a frost-free growing season of about 288 days.
Tucson weather records
These records cover TUCSON INTL AP during 1970–2026. Earlier records or other stations in the city may differ.
The hottest temperature on record at the Tucson station is 117°F, on June 26, 1990. The coldest is 16°F, on December 24, 1974.
The wettest day in the available station history brought 3.0 in of precipitation, on October 1, 1983.
34 all-time records have been set at the station since 1970.
The annual mean temperature has changed by +0.9°F per decade since 1970.
The best time to visit Tucson
The most comfortable time to visit is typically January to March and November to December, when daytime highs sit near 71°F.
Winter (December–February) is mild, with average highs around 67°F and lows near 41°F. Snow is possible.
Spring (March–May) is hot, with average highs around 84°F and lows near 54°F.
Summer (June–August) is hot, with average highs around 100°F and lows near 73°F.
Autumn (September–November) is hot, with average highs around 86°F and lows near 58°F.
Tucson climate questions
How much rain does Tucson get?
Tucson gets 10.6 in of precipitation in an average year, over about 47 rainy days.
What is the wettest month in Tucson?
July is the wettest month in Tucson, with 2.2 in. May is the driest, with 0.2 in.
How many rainy days does Tucson have a year?
Tucson has about 47 days with measurable rain in an average year. July has the most, about 9.
Does it snow in Tucson?
Rarely. The reporting station for Tucson averages under 0.5 in of snow a season. The snowiest winter on record is 1971–72, with 6.8 in.
What is the hottest month in Tucson?
June is the warmest month in Tucson, with an average high of 101°F.
What is the coldest month in Tucson?
January is the coldest month in Tucson, with an average low of 40°F.
What is the record high temperature in Tucson?
Within the available 1970–2026 station history, the record high at the Tucson station is 117°F, set on June 26, 1990. The record low is 16°F, on December 24, 1974.
What is the sunniest month in Tucson?
May is the sunniest month in Tucson, with estimated sunshine of 88% of daylight hours from ERA5 cloud cover. July is the cloudiest.
When is the first frost in Tucson?
The first fall freeze in Tucson typically comes around November 30. The last spring freeze is around February 15.
What is the best time to visit Tucson?
The most comfortable time to visit is typically January to March and November to December, when daytime highs sit near 71°F.
