Kennewick Weather Year-Round — Best Time to Visit
Kennewick, United States has mild weather year-round. The best time to visit is August (score: 99/100). Annual average high: 19.2°C, total rainfall: 235mm.
When is the best time to visit Kennewick?
99
August is the best month to visit Kennewick with a travel score of 99/100 (Excellent).
Expect highs of 33.2°C, 1 rain days, and 13.2 hours of daily sunshine.
View August weather details →Travel Score by Month
49
Jan
61
Feb
73
Mar
83
Apr
91
May
96
Jun
98
Jul
99
Aug
98
Sep
81
Oct
58
Nov
48
Dec
Excellent (80+)
Good (60-79)
Mixed (40-59)
Poor (<40)
What are the average temperatures in Kennewick each month?
19.2°C
Avg High
7.9°C
Avg Low
235mm
Annual Rain
How much rain does Kennewick get?
Kennewick receives 235mm of rain annually. The wettest month is typically December with 38mm, while July is the driest.
What is the weather like each month in Kennewick?
January
49
6°C
Low: -1°C
8 rain days
Mixed
February
61
9°C
Low: 0°C
6 rain days
Good
March
73
14°C
Low: 3°C
6 rain days
Good
April
83
19°C
Low: 7°C
5 rain days
Excellent
May
91
25°C
Low: 11°C
4 rain days
Excellent
June
96
29°C
Low: 15°C
3 rain days
Excellent
July
98
35°C
Low: 19°C
1 rain days
Excellent
August
Best time to visit99
33°C
Low: 19°C
1 rain days
Excellent
September
98
27°C
Low: 14°C
2 rain days
Excellent
October
81
19°C
Low: 8°C
5 rain days
Excellent
November
58
10°C
Low: 2°C
8 rain days
Mixed
December
48
5°C
Low: -1°C
8 rain days
Mixed
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Data based on 1994–2024 averages · Last updated: 2024-12-31