Average data for 10 years
1 May
Wednesday
+19°
+15°
2 May
Thursday
+20°
+15°
3 May
Friday
+21°
+15°
4 May
Saturday
+19°
+14°
5 May
Sunday
+19°
+14°
6 May
Monday
+21°
+15°
7 May
Tuesday
+21°
+16°
8 May
Wednesday
+22°
+16°
9 May
Thursday
+21°
+16°
10 May
Friday
+22°
+15°
11 May
Saturday
+20°
+14°
12 May
Sunday
+21°
+15°
13 May
Monday
+23°
+17°
14 May
Tuesday
+23°
+18°
15 May
Wednesday
+23°
+16°
16 May
Thursday
+24°
+18°
17 May
Friday
+24°
+18°
18 May
Saturday
+24°
+17°
19 May
Sunday
+23°
+17°
20 May
Monday
+22°
+16°
21 May
Tuesday
+21°
+16°
22 May
Wednesday
+22°
+16°
23 May
Thursday
+21°
+16°
24 May
Friday
+21°
+17°
25 May
Saturday
+22°
+17°
26 May
Sunday
+22°
+17°
27 May
Monday
+23°
+17°
28 May
Tuesday
+24°
+18°
29 May
Wednesday
+25°
+19°
30 May
Thursday
+25°
+20°
31 May
Friday
+26°
+19°
In May, the weather in Kennewick is typically warm. Average daily high temperature in May is about 22 degrees above zero. On average, Kennewick has 15 partly cloudy, 11 sunny, 3 cloudy, and 2 rainy days in May. The rains are usually light. May as well as June and September is considered the most comfortable time to visit Kennewick.