Wheaton Weather Year-Round — Best Time to Visit
Wheaton, United States has cool weather year-round. The best time to visit is September (score: 85/100). Annual average high: 14.6°C, total rainfall: 954mm.
When is the best time to visit Wheaton?
85
September is the best month to visit Wheaton with a travel score of 85/100 (Excellent).
Expect highs of 23.5°C, 8 rain days, and 9.8 hours of daily sunshine.
View September weather details →Travel Score by Month
39
Jan
48
Feb
57
Mar
64
Apr
74
May
82
Jun
83
Jul
83
Aug
85
Sep
69
Oct
56
Nov
44
Dec
Excellent (80+)
Good (60-79)
Mixed (40-59)
Poor (<40)
What are the average temperatures in Wheaton each month?
14.6°C
Avg High
5.7°C
Avg Low
954mm
Annual Rain
How much rain does Wheaton get?
Wheaton receives 954mm of rain annually. The wettest month is typically May with 116mm, while February is the driest.
What is the weather like each month in Wheaton?
January
39
-1°C
Low: -9°C
8 rain days
Poor
February
48
2°C
Low: -7°C
7 rain days
Mixed
March
57
8°C
Low: -2°C
10 rain days
Mixed
April
64
14°C
Low: 4°C
11 rain days
Good
May
74
21°C
Low: 10°C
12 rain days
Good
June
82
26°C
Low: 16°C
12 rain days
Excellent
July
83
28°C
Low: 19°C
11 rain days
Excellent
August
83
27°C
Low: 18°C
11 rain days
Excellent
September
Best time to visit85
24°C
Low: 14°C
8 rain days
Excellent
October
69
16°C
Low: 8°C
9 rain days
Good
November
56
9°C
Low: 1°C
8 rain days
Mixed
December
44
2°C
Low: -5°C
8 rain days
Mixed
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Data based on 1994–2024 averages · Last updated: 2024-12-31