Best year time to visit Walla Walla

General weather information about Walla Walla

Average annual temperature is 12.8 °C

Absolute maximum temperature: 39.9 °C

Absolute minimum temperature: -10.4 °C

Number of sunny days: 216

Number of rainy days: 144

Number of snow days: 5

Average annual precipitation: 373 mm

Look at detailed online map of Walla Walla

* Weather data for Walla Walla United States is based on climate observations for 2023 year

Walla Walla air temperature forecast for each month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Absolute maximum temperature (°C) 15.1 14.1 16.4 27.4 33.3 35.5 39.1 39.9 33 25.1 18.5 17.2
Average daytime temperature (°C) 8 8.5 11.4 15.8 25.8 29 34.7 32.1 25.9 18 8.7 7
Average temperature (°C) 3.5 2.9 5.8 10 18.5 21.7 26.7 24.7 18.6 12.2 4.4 3.5
Average night temperature (°C) 0.1 -0.8 1.9 5.3 12.6 15.3 19.1 18.6 13.2 7.9 1.5 1.1
Absolute minimum temperature (°C) -9.9 -10.4 -3.1 -0.2 6.1 9.4 14.9 11.1 6.3 -3.4 -5.6 -4.6

Walla Walla monthly weather indicators

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Daylight maximum duration (h) 9.7 11.1 12.7 14.3 15.5 15.8 15.7 14.8 13.3 11.7 10.1 8.9
Daylight mean duration (h) 9.1 10.4 11.9 13.6 15 15.7 15.4 14.1 12.6 10.9 9.5 8.7
Daylight minimum duration (h) 8.7 9.7 11.1 12.8 14.3 15.5 14.9 13.4 11.8 10.2 9 8.6
Sunshine mean duration (h) 5.5 6.2 7.6 9.3 12.9 13.3 14 11 9.2 8 4.7 3.2
Precipitation (mm) 26 45 46 53 11 3 0 17 36 29 49 58
Sunny days 15 11 8 13 23 27 30 24 18 19 15 13
Rainy days 15 13 23 17 8 3 1 7 12 12 15 18
Snow days 1 4

Walla Walla - weather forecast by months

January February March April May June July August September October November December

Best time to visit Walla Walla:

The best time to visit Walla Walla during the most sunny months:

  • May — 12.9(h)
  • June — 13.3(h)
  • July — 14(h)

Months with the longest average daylight duration in Walla Walla:

  • June — 15.7(h)
  • July — 15.4(h)

The largest precipitation sum in Walla Walla is at

  • February — 45(mm)
  • March — 46(mm)
  • April — 53(mm)
  • November — 49(mm)
  • December — 58(mm)

Weather forecast in the closest to Walla Walla admin centers