Decatur Weather Year-Round — Best Time to Visit
Decatur, United States has mild weather year-round. The best time to visit is September (score: 87/100). Annual average high: 21.6°C, total rainfall: 1277mm.
When is the best time to visit Decatur?
87
September is the best month to visit Decatur with a travel score of 87/100 (Excellent).
Expect highs of 28.3°C, 8 rain days, and 10.1 hours of daily sunshine.
View September weather details →Travel Score by Month
56
Jan
59
Feb
68
Mar
79
Apr
84
May
81
Jun
78
Jul
82
Aug
87
Sep
83
Oct
69
Nov
57
Dec
Excellent (80+)
Good (60-79)
Mixed (40-59)
Poor (<40)
What are the average temperatures in Decatur each month?
21.6°C
Avg High
12.2°C
Avg Low
1277mm
Annual Rain
How much rain does Decatur get?
Decatur receives 1277mm of rain annually. The wettest month is typically March with 138mm, while August is the driest.
What is the weather like each month in Decatur?
January
56
10°C
Low: 1°C
10 rain days
Mixed
February
59
13°C
Low: 3°C
10 rain days
Mixed
March
68
17°C
Low: 7°C
11 rain days
Good
April
79
22°C
Low: 11°C
10 rain days
Good
May
84
26°C
Low: 16°C
10 rain days
Excellent
June
81
30°C
Low: 21°C
12 rain days
Excellent
July
78
31°C
Low: 22°C
13 rain days
Good
August
82
31°C
Low: 22°C
11 rain days
Excellent
September
Best time to visit87
28°C
Low: 19°C
8 rain days
Excellent
October
83
23°C
Low: 13°C
7 rain days
Excellent
November
69
16°C
Low: 7°C
8 rain days
Good
December
57
12°C
Low: 3°C
10 rain days
Mixed
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What cities are near Decatur?
Data based on 1994–2024 averages · Last updated: 2024-12-31