Decatur Weather Year-Round — Best Time to Visit
Decatur, United States has mild weather year-round. The best time to visit is September (score: 89/100). Annual average high: 16.8°C, total rainfall: 995mm.
When is the best time to visit Decatur?
89
September is the best month to visit Decatur with a travel score of 89/100 (Excellent).
Expect highs of 25.2°C, 7 rain days, and 10.1 hours of daily sunshine.
View September weather details →Travel Score by Month
45
Jan
52
Feb
61
Mar
69
Apr
77
May
83
Jun
84
Jul
86
Aug
89
Sep
74
Oct
60
Nov
48
Dec
Excellent (80+)
Good (60-79)
Mixed (40-59)
Poor (<40)
What are the average temperatures in Decatur each month?
16.8°C
Avg High
7.6°C
Avg Low
995mm
Annual Rain
How much rain does Decatur get?
Decatur receives 995mm of rain annually. The wettest month is typically May with 114mm, while February is the driest.
What is the weather like each month in Decatur?
January
45
2°C
Low: -6°C
8 rain days
Mixed
February
52
5°C
Low: -5°C
7 rain days
Mixed
March
61
11°C
Low: 1°C
9 rain days
Good
April
69
17°C
Low: 7°C
11 rain days
Good
May
77
23°C
Low: 13°C
12 rain days
Good
June
83
27°C
Low: 18°C
10 rain days
Excellent
July
84
29°C
Low: 20°C
10 rain days
Excellent
August
86
28°C
Low: 19°C
9 rain days
Excellent
September
Best time to visit89
25°C
Low: 16°C
7 rain days
Excellent
October
74
18°C
Low: 9°C
8 rain days
Good
November
60
11°C
Low: 3°C
7 rain days
Good
December
48
5°C
Low: -3°C
8 rain days
Mixed
Compare Decatur
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What cities are near Decatur?
Data based on 1994–2024 averages · Last updated: 2024-12-31