What is the hottest month in Aurora?

July — average highs around 83° with lows near 66°.

What is the coldest month in Aurora?

January, when nights typically drop to 18° and days top out near 31°.

What is the rainiest month in Aurora?

July, averaging about 5.5 in of precipitation; the driest is February at roughly 2.2 in.

How warm is Aurora over the year?

The annual mean is 52°, with about 44 in of precipitation in a typical year (1991-2020 normals).

Aurora Climate — Monthly Normals 1991-2020

Climate in Aurora

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

Annual mean temp

10.9°C

average across 12 months

Annual precipitation

1126 mm

yearly total

Warmest month

Jul

⌀ max 28°C

Coldest month

Jan

⌀ min -7°C

Temperatures by month

typical high (orange) · typical low (blue)

Jan

18° … 31°

Feb

20° … 37°

Mar

31° … 49°

Apr

39° … 58°

May

51° … 71°

Jun

62° … 82°

Jul

66° … 83°

Aug

65° … 82°

Sep

59° … 77°

Oct

47° … 63°

Nov

34° … 48°

Dec

26° … 40°

Precipitation by month

monthly totals across the year

Jan

61 mm

Feb

56 mm

Mar

87 mm

Apr

97 mm

May

133 mm

Jun

120 mm

Jul

139 mm

Aug

105 mm

Sep

103 mm

Oct

103 mm

Nov

57 mm

Dec

65 mm

The short version

RegionIllinois

Latitude41.7606°N

Annual mean10.9°C

Annual precipitation1126 mm

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Weather map — Aurora

Aurora →

Source · 1991-2020 normals

Aurora, IL Climate