Oak Lawn Weather Year-Round — Best Time to Visit
Oak Lawn, United States has cool weather year-round. The best time to visit is September (score: 84/100). Annual average high: 14.8°C, total rainfall: 996mm.
When is the best time to visit Oak Lawn?
84
September is the best month to visit Oak Lawn with a travel score of 84/100 (Excellent).
Expect highs of 23.7°C, 8 rain days, and 9.9 hours of daily sunshine.
View September weather details →Travel Score by Month
39
Jan
47
Feb
56
Mar
64
Apr
74
May
81
Jun
82
Jul
82
Aug
84
Sep
69
Oct
56
Nov
44
Dec
Excellent (80+)
Good (60-79)
Mixed (40-59)
Poor (<40)
What are the average temperatures in Oak Lawn each month?
14.8°C
Avg High
6.3°C
Avg Low
996mm
Annual Rain
How much rain does Oak Lawn get?
Oak Lawn receives 996mm of rain annually. The wettest month is typically May with 115mm, while February is the driest.
What is the weather like each month in Oak Lawn?
January
39
0°C
Low: -8°C
9 rain days
Poor
February
47
2°C
Low: -7°C
7 rain days
Mixed
March
56
8°C
Low: -1°C
10 rain days
Mixed
April
64
14°C
Low: 5°C
12 rain days
Good
May
74
21°C
Low: 11°C
12 rain days
Good
June
81
26°C
Low: 17°C
12 rain days
Excellent
July
82
28°C
Low: 19°C
11 rain days
Excellent
August
82
27°C
Low: 19°C
11 rain days
Excellent
September
Best time to visit84
24°C
Low: 15°C
8 rain days
Excellent
October
69
17°C
Low: 9°C
10 rain days
Good
November
56
9°C
Low: 2°C
8 rain days
Mixed
December
44
3°C
Low: -4°C
8 rain days
Mixed
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Data based on 1994–2024 averages · Last updated: 2024-12-31