What is the hottest month in Tempe?

July — average highs around 108° with lows near 85°.

What is the coldest month in Tempe?

January, when nights typically drop to 43° and days top out near 67°.

What is the rainiest month in Tempe?

July, averaging about 1.7 in of precipitation; the driest is May at roughly 0.1 in.

How warm is Tempe over the year?

The annual mean is 75°, with about 12 in of precipitation in a typical year (1991-2020 normals).

Tempe Climate — Monthly Normals 1991-2020

Climate in Tempe

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

Annual mean temp

24.1°C

average across 12 months

Annual precipitation

311 mm

yearly total

Warmest month

Jul

⌀ max 42°C

Coldest month

Jan

⌀ min 6°C

Temperatures by month

typical high (orange) · typical low (blue)

Jan

43° … 67°

Feb

46° … 71°

Mar

51° … 76°

Apr

60° … 89°

May

68° … 96°

Jun

78° … 105°

Jul

85° … 108°

Aug

84° … 106°

Sep

78° … 101°

Oct

64° … 90°

Nov

53° … 77°

Dec

46° … 68°

Precipitation by month

monthly totals across the year

Jan

29 mm

Feb

31 mm

Mar

35 mm

Apr

3 mm

May

2 mm

Jun

5 mm

Jul

43 mm

Aug

33 mm

Sep

34 mm

Oct

36 mm

Nov

25 mm

Dec

35 mm

The short version

RegionArizona

Latitude33.4148°N

Annual mean24.1°C

Annual precipitation311 mm

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Weather map — Tempe

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Source · 1991-2020 normals

Tempe, AZ Climate