Pima County · Arizona
Tucson, AZ weather averages
NOAA climate normals for 1991-2020, measured at Tucson Intl Ap, 9.2 km from the city centre — month by month temperature, rain and snow.
Quick answer
Tucson averages a daily high of 83.1°F and a daily low of 55.8°F across the year, with 11.59 inches of precipitation. June is the warmest month at 100.3°F and December the coldest at 39.1°F.
- Average annual high
- 83.1°FWarmest month June
- Average annual low
- 55.8°FColdest month December
- Precipitation per year
- 11.59 inWettest month August
- Snowfall per year
- 0.6 in10.5 days at or below 32°F
Tucson weather month by month
Normal daily high and low, precipitation and snowfall for each month, 1991-2020.
| Month | High °F | Low °F | Precip in | Snow in | Range |
|---|---|---|---|---|---|
| January | 65.5 | 39.8 | 0.94 | 0.3 | 39.8 to 65.5 degrees |
| February | 68.5 | 42.2 | 0.86 | 0.2 | 42.2 to 68.5 degrees |
| March | 74.1 | 46.2 | 0.73 | 0 | 46.2 to 74.1 degrees |
| April | 82.1 | 52 | 0.31 | 0 | 52 to 82.1 degrees |
| May | 91.6 | 60.5 | 0.23 | 0 | 60.5 to 91.6 degrees |
| June | 100.3 | 69.3 | 0.2 | 0 | 69.3 to 100.3 degrees |
| July | 99.7 | 74.4 | 2.25 | 0 | 74.4 to 99.7 degrees |
| August | 97.4 | 73.3 | 2.39 | 0 | 73.3 to 97.4 degrees |
| September | 94.5 | 68.6 | 1.29 | 0 | 68.6 to 94.5 degrees |
| October | 84.8 | 57.3 | 0.89 | 0 | 57.3 to 84.8 degrees |
| November | 73.5 | 46.1 | 0.57 | 0 | 46.1 to 73.5 degrees |
| December | 64.8 | 39.1 | 0.93 | 0.1 | 39.1 to 64.8 degrees |
Source: NOAA NCEI, U.S. Climate Normals 1991-2020 — station USW00023160, Tucson Intl Ap · rates as published for 1991-2020 normals
How to read Tucson climate normals
What a climate normal is, and what it is not.
A normal is the average of thirty years of daily observations at one station — here Tucson Intl Ap, 9.2 km from the centre of Tucson. It describes a typical year, so any single year will run warmer, cooler, wetter or drier. Readings taken at an airport on the edge of town usually sit a degree or two below a dense downtown on summer nights. Tucson sees about 144.3 days a year at or above 90°F and about 27.9 days with a tenth of an inch of precipitation or more.
Keep going
Other Tucson data on this site.