Average annual temperature is 14.0 °C
Absolute maximum temperature: 43.6 °C
Absolute minimum temperature: -9.0 °C
Number of sunny days: 237 days
Number of rainy days: 125 days
Number of snow days: 3 days
Look at detailed online map of City of Kennewick
* Weather data for City of Kennewick United States is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 12.9 | 12.8 | 17.1 | 32.0 | 37.7 | 38.1 | 40.7 | 43.6 | 33.6 | 27.6 | 16.9 | 14.2 |
| Average daytime temperature (°C) | 6.5 | 8.6 | 12.6 | 18.2 | 29.3 | 31.7 | 36.6 | 34.9 | 27.2 | 19.3 | 9.4 | 6.8 |
| Average temperature (°C) | 2.0 | 3.3 | 6.4 | 11.9 | 21.7 | 24.3 | 28.8 | 27.1 | 20.0 | 13.1 | 5.3 | 3.7 |
| Average night temperature (°C) | -0.8 | -0.3 | 1.9 | 6.6 | 14.6 | 17.0 | 20.3 | 19.3 | 13.9 | 7.9 | 2.2 | 1.4 |
| Absolute minimum temperature (°C) | -9.0 | -8.1 | -1.8 | 1.9 | 9.1 | 9.9 | 15.9 | 14.7 | 8.7 | -3.1 | -3.5 | -2.6 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 15.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 8.0 |
| Daylight mean duration (h) | 9.1 | 10.3 | 11.9 | 13.6 | 15.0 | 15.7 | 15.4 | 14.1 | 12.6 | 10.9 | 9.5 | 8.7 |
| Daylight minimum duration (h) | 8.0 | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 8.0 | 8.0 |
| Sunshine mean duration (h) | 4.8 | 6.9 | 8.1 | 9.3 | 12.9 | 13.1 | 14.0 | 11.2 | 9.3 | 8.3 | 5.1 | 2.8 |
| Precipitation (mm) | 22 | 13 | 30 | 43 | 4 | 4 | 0 | 12 | 15 | 19 | 32 | 67 |
| Sunny days | 17 | 15 | 14 | 13 | 24 | 26 | 29 | 25 | 20 | 23 | 18 | 13 |
| Rainy days | 12 | 12 | 17 | 17 | 7 | 4 | 2 | 6 | 10 | 8 | 12 | 18 |
| Snow days | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit City of Kennewick during the most sunny months:
Months with the longest average daylight duration in City of Kennewick:
The largest precipitation sum in City of Kennewick is at