What is the hottest month in Tucson?

June — average highs around 102° with lows near 74°.

What is the coldest month in Tucson?

January, when nights typically drop to 41° and days top out near 65°.

What is the rainiest month in Tucson?

September, averaging about 2.0 in of precipitation; the driest is May at roughly 0.1 in.

How warm is Tucson over the year?

The annual mean is 72°, with about 15 in of precipitation in a typical year (1991-2020 normals).

Tucson Climate — Monthly Normals 1991-2020

Climate in Tucson

The typical year in Tucson (Arizona), from 1991-2020 normals. For what's happening now, see the current forecast; a month ahead — the 30-day outlook.

Annual mean temp

22.2°C

average across 12 months

Annual precipitation

369 mm

yearly total

Warmest month

Jun

⌀ max 38°C

Coldest month

Jan

⌀ min 4°C

Temperatures by month

typical high (orange) · typical low (blue)

Jan

41° … 65°

Feb

43° … 69°

Mar

48° … 75°

Apr

56° … 86°

May

64° … 93°

Jun

74° … 102°

Jul

79° … 101°

Aug

77° … 100°

Sep

72° … 96°

Oct

61° … 87°

Nov

50° … 76°

Dec

44° … 68°

Precipitation by month

monthly totals across the year

Jan

39 mm

Feb

41 mm

Mar

37 mm

Apr

7 mm

May

3 mm

Jun

7 mm

Jul

42 mm

Aug

41 mm

Sep

51 mm

Oct

36 mm

Nov

27 mm

Dec

38 mm

The short version

RegionArizona

Latitude32.2217°N

Annual mean22.2°C

Annual precipitation369 mm

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Weather map — Tucson

Tucson →

Source · 1991-2020 normals

Tucson, AZ Climate