Flood Advisory
* WHAT...Flooding caused by excessive rainfall is expected.
* WHERE...Northeastern Pima County in southeastern Arizona...
* WHEN...Until 845 AM MST Thursday.
* IMPACTS...Rises in small streams and normally dry washes. Some
low-water crossings may become impassable.
* ADDITION…
Flood Advisory
* WHAT...Flooding caused by excessive rainfall is expected.
* WHERE...East Central Pima County in southeastern Arizona...
* WHEN...Until 600 AM MST.
* IMPACTS...Minor flooding in low-lying and poor drainage areas.
* ADDITIONAL DETAILS...
- At 1208 AM MST, Between 1.5 and 2.7 …
Flash Flood Warning
FFWTWC
The National Weather Service in Tucson has issued a
* Flash Flood Warning for...
North Central Pima County in southeastern Arizona...
* Until 100 PM MST.
* At 807 AM MST, local law enforcement reported cars stuck along
Brawley Wash and the Brawley Wash stream gauge nea…
Tomorrow in Tucson looks
sunny, with a high of 102°
and an overnight low of 84°.
There is a 57% chance of rain - plan accordingly.
Winds top out near 14 mph,
and the UV index reaches 11 (very high).
Tucson has a semi-arid climate, marked by big day-to-night temperature swings and modest rainfall. Average daytime highs range from about 64°F (18°C) in January to around 100°F (38°C) in July, and the city records roughly 45 days of measurable precipitation a year.
Tucson weather: quick facts
Hottest month: July - highs near 100°F (38°C)
Coldest month: January - highs near 64°F (18°C)
Record high: 113°F (45°C) · Record low: 26°F (-3°C) (2015–2024)
Wettest month: July (8 rainy days) · Sunniest: May (12.9 h sun/day)
Climate type:semi-arid - big day-to-night temperature swings and modest rainfall
Snow: about 1 days a year
Temperatures through the year
The warmest stretch of the year centers on July. Highs average 100°F (38°C) and overnight lows stay near 78°F (26°C). The coolest month is January, with typical highs of 64°F (18°C) and lows around 41°F (5°C). Based on 2015–2024 weather data, temperatures have reached as high as 113°F (45°C) and dropped as low as 26°F (-3°C).
Rain, sun and snow
July is usually the wettest month. It brings about 2.0 inches (52 mm) of rain over 8 days, while May is the driest. May brings the most sunshine, averaging 12.9 hours of sun a day. Snowfall is rare but not unheard of.
Season by season
Spring (March through May)
Spring in Tucson is hot, with daytime highs averaging 83°F (28°C) and nights around 56°F (13°C); precipitation is infrequent.
Summer (June through August)
Summer in Tucson is intensely hot, with daytime highs averaging 100°F (38°C) and nights around 76°F (25°C); rain falls on about 15 days over the three months.
Fall (September through November)
Fall in Tucson runs hot, with daytime highs averaging 85°F (30°C) and nights around 61°F (16°C); rain falls on about 10 days over the three months.
Winter (December through February)
Winter in Tucson is mild, with daytime highs averaging 66°F (19°C) and nights around 42°F (6°C); rain falls on about 14 days over the three months.
Average temperatures in Tucson by month
Monthly averages for Tucson based on 2015–2024 weather data.
July is the hottest month in Tucson, with average highs of 100°F (38°C) and overnight lows near 78°F (26°C). In the past decade the temperature has peaked at 113°F (45°C).
What is the coldest month in Tucson?
January is the coldest month, with highs averaging 64°F (18°C) and lows around 41°F (5°C). The lowest reading in recent years was 26°F (-3°C).
What is the rainiest month in Tucson?
July is typically the wettest month, averaging 2.0 inches (52 mm) of precipitation across about 8 days. May is usually the driest.
Does it snow in Tucson?
Yes. Tucson averages about 1 days of snowfall a year.
What is the best time to visit Tucson?
The best time to visit Tucson is generally November to April, when temperatures are at their most comfortable before or after the peak heat. Daytime temperatures in that window typically sit near 72°F (22°C).
How sunny is Tucson?
Tucson averages 11.0 hours of sunshine per day across the year. May is the sunniest month at about 12.9 hours of sun a day.
Is Tucson humid?
Relative humidity in Tucson averages about 36% over the year, which feels dry. The most comfortable months tend to fall in the drier part of the year.