Climate & Temperature > Usa > Walla Walla, Washington

Walla Walla, Washington Climate Guide to the Average Weather & Temperatures with Graphs Elucidating Sunshine and Rainfall Data & Information about Wind Speeds & Humidity:

  • Walla Walla, Washington, Usa latitude & longitude; 46°2'N 118°20'W.
  • Altitude; 289 m (948 ft).
  • The average temperature in Walla Walla, Washington, Usa is 12.3 °C (54 °F).
  • The range of average monthly temperatures is 24 °C.
  • The warmest average max/ high temperature is 32 °C (90 °F) in July.
  • The coolest average min/ low temperature is -3 °C (27 °F) in January.
  • Walla Walla, Washington receives on average 393 mm (15.5 in) of precipitation annually or 33 mm (1.3 in) each month.
  • On balance there are 108 days annually on which greater than 0.1 mm (0.004 in) of precipitation (rain, sleet, snow or hail) occurrs or 9.0 days on an average month.
  • The month with the driest weather is July when on balance 5 mm (0.2 in) of rain, sleet, hail or snow falls across 3 days.
  • The month with the wettest weather is January & December when on balance 48 mm (1.9 in) of rainfall (precipitation) occurrs.
  • There is an average range of hours of sunshine in Walla Walla, Washington of between 1.7 hours per day in December and 13.7 hours per day in July.
  • On balance there are 2740 sunshine hours annually and approximately 7.5 sunlight hours for each day.

Walla Walla, Washington Climate Graph (Metric | Imperial units)

Walla Walla, Washington Climate Graph

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Walla Walla, Washington Weather Averages

  Average Minimum Temperatures in Walla Walla, Washington, Usa (°C) Average Maximum Temperature in Walla Walla, Washington, Usa (°C) Walla Walla, Washington Average Temperature (°C) Average Sea Temp (°C) Average Precipitation/ Rainfall (mm) Wet Days (>0.1 mm) Average Sunlight Hours/ Day Relative Humidity (%) Average Wind Speed in Walla Walla, Washington (Beaufort) Average Number of Days with Frost  
Weather in Walla Walla, Washington in January -3 4 0.5 - 48 14 2.1 - 2 - Average Temperature in Walla Walla, Washington in January
Weather in Walla Walla, Washington in February 0 7 3.5 - 38 11 3.9 - 2 - Average Temperature in Walla Walla, Washington in February
Weather in Walla Walla, Washington in March 3 12 8 - 41 12 6.1 - 2 - Average Temperature in Walla Walla, Washington in March
Weather in Walla Walla, Washington in April 7 18 13 - 36 9 8.7 - 2 - Average Temperature in Walla Walla, Washington in April
Weather in Walla Walla, Washington in May 10 22 16 - 38 9 10.3 - 2 - Average Temperature in Walla Walla, Washington in May
Weather in Walla Walla, Washington in June 13 26 20 - 30 8 11.5 - 2 - Average Temperature in Walla Walla, Washington in June
Weather in Walla Walla, Washington in July 17 32 25 - 5 3 13.7 - 2 - Average Temperature in Walla Walla, Washington in July
Weather in Walla Walla, Washington in August 16 30 23 - 8 3 11.9 - 2 - Average Temperature in Walla Walla, Washington in August
Weather in Walla Walla, Washington in September 12 26 19 - 20 5 9.8 - 2 - Average Temperature in Walla Walla, Washington in September
Weather in Walla Walla, Washington in October 8 18 13 - 38 9 6.7 - 2 - Average Temperature in Walla Walla, Washington in October
Weather in Walla Walla, Washington in November 2 9 6 - 43 11 3.3 - 2 - Average Temperature in Walla Walla, Washington in November
Weather in Walla Walla, Washington in December 0 7 3.5 - 48 14 1.7 - 2 - Average Temperature in Walla Walla, Washington in December

Walla Walla, Washington Climograph/ Climate Chart (imperial)

Walla Walla, Washington Temperature Chart

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Walla Walla, Washington Temperatures in Farenheit

  Average Minimum Temperatures in Walla Walla, Washington, Usa (°F) Average Maximum Temperature in Walla Walla, Washington, Usa (°F) Average Temperature (°F) Average Sea Temp (°F) Average Precipitation/ Rainfall (in) Wet Days (>0.004 in) Average Sunlight Hours/ Day Relative Humidity (%) Average Wind Speed (Beaufort) Average Number of Days with Frost  
Temperatures in Walla Walla, Washington in January 27 39 33 - 1.9 14 2.1 - 2 - Climate in Walla Walla, Washington in January
Temperatures in Walla Walla, Washington in February 32 45 38 - 1.5 11 3.9 - 2 - Climate in Walla Walla, Washington in February
Temperatures in Walla Walla, Washington in March 37 54 46 - 1.6 12 6.1 - 2 - Climate in Walla Walla, Washington in March
Temperatures in Walla Walla, Washington in April 45 64 55 - 1.4 9 8.7 - 2 - Climate in Walla Walla, Washington in April
Temperatures in Walla Walla, Washington in May 50 72 61 - 1.5 9 10.3 - 2 - Climate in Walla Walla, Washington in May
Temperatures in Walla Walla, Washington in June 55 79 67 - 1.2 8 11.5 - 2 - Climate in Walla Walla, Washington in June
Temperatures in Walla Walla, Washington in July 63 90 76 - 0.2 3 13.7 - 2 - Climate in Walla Walla, Washington in July
Temperatures in Walla Walla, Washington in August 61 86 73 - 0.3 3 11.9 - 2 - Climate in Walla Walla, Washington in August
Temperatures in Walla Walla, Washington in September 54 79 66 - 0.8 5 9.8 - 2 - Climate in Walla Walla, Washington in September
Temperatures in Walla Walla, Washington in October 46 64 55 - 1.5 9 6.7 - 2 - Climate in Walla Walla, Washington in October
Temperatures in Walla Walla, Washington in November 36 48 42 - 1.7 11 3.3 - 2 - Climate in Walla Walla, Washington in November
Temperatures in Walla Walla, Washington in December 32 45 38 - 1.9 14 1.7 - 2 - Climate in Walla Walla, Washington in December

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