Average Weather in March in Walla Walla Washington, United States
Daily high temperatures increase by 7°F, from 53°F to 60°F, rarely falling below 43°F or exceeding 70°F.
Daily low temperatures increase by 4°F, from 38°F to 42°F, rarely falling below 29°F or exceeding 49°F.
For reference, on July 31, the hottest day of the year, temperatures in Walla Walla typically range from 65°F to 93°F, while on December 29, the coldest day of the year, they range from 30°F to 40°F.
Average High and Low Temperature in March
The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on March. The horizontal axis is the day, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day.
Average Hourly Temperature in March
The month of March in Walla Walla experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 63% throughout the month.
The clearest day of the month is March 31, with clear, mostly clear, or partly cloudy conditions 39% of the time.
For reference, on January 16, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 68%, while on July 29, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 82%.
Cloud Cover Categories in March
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Walla Walla, the chance of a wet day over the course of March is gradually decreasing, starting the month at 28% and ending it at 24%.
For reference, the year's highest daily chance of a wet day is 37% on November 28, and its lowest chance is 7% on August 5.
Over the course of March in Walla Walla, the chance of a day with only rain remains an essentially constant 25% throughout, the chance of a day with mixed snow and rain remains an essentially constant 1% throughout, and the chance of a day with only snow remains an essentially constant 1% throughout.
Probability of Precipitation in March
The average sliding 31-day rainfall during March in Walla Walla is essentially constant, remaining about 1.4 inches throughout, and rarely exceeding 2.6 inches or falling below 0.4 inches.
The highest average 31-day accumulation is 1.5 inches on March 11.
Average Monthly Rainfall in March
Over the course of March in Walla Walla, the length of the day is rapidly increasing. From the start to the end of the month, the length of the day increases by 1 hour, 38 minutes, implying an average daily increase of 3 minutes, 16 seconds, and weekly increase of 22 minutes, 52 seconds.
The shortest day of the month is March 1, with 11 hours, 8 minutes of daylight and the longest day is March 31, with 12 hours, 46 minutes of daylight.
Hours of Daylight and Twilight in March
The earliest sunrise of the month in Walla Walla is 6:15 AM on March 10 and the latest sunrise is 58 minutes later at 7:13 AM on March 11.
The earliest sunset is 5:39 PM on March 1 and the latest sunset is 1 hour, 41 minutes later at 7:20 PM on March 31.
Daylight saving time (DST) starts at 3:00 AM on March 11, 2018, shifting sunrise and sunset to be an hour later.
For reference, on June 21, the longest day of the year, the Sun rises at 5:02 AM and sets 15 hours, 46 minutes later, at 8:48 PM, while on December 21, the shortest day of the year, it rises at 7:32 AM and sets 8 hours, 38 minutes later, at 4:10 PM.
Sunrise & Sunset with Twilight and Daylight Saving Time in March
The chance that a given day will be muggy in Walla Walla is essentially constant during March, remaining around 0% throughout.
For reference, on July 6, the muggiest day of the year, there are muggy conditions 0% of the time, while on January 1, the least muggy day of the year, there are muggy conditions 0% of the time.
Humidity Comfort Levels in March
The average hourly wind speed in Walla Walla is essentially constant during March, remaining within 0.2 miles per hour of 7.7 miles per hour throughout.
For reference, on November 19, the windiest day of the year, the daily average wind speed is 8.3 miles per hour, while on September 8, the calmest day of the year, the daily average wind speed is 6.6 miles per hour.
Average Wind Speed in March
Wind Direction in March
The growing season in Walla Walla typically lasts for 7.7 months (235 days), from around March 14 to around November 4, rarely starting before February 15 or after April 8, and rarely ending before October 13 or after November 26.
During March in Walla Walla, the chance that a given day is within the growing season is very rapidly increasing rising from 28% to 80% over the course of the month.
Time Spent in Various Temperature Bands and the Growing Season in March
The average accumulated growing degree days in Walla Walla are gradually increasing during March, increasing by 65°F, from 33°F to 98°F, over the course of the month.
Growing Degree Days in March
The average daily incident shortwave solar energy in Walla Walla is increasing during March, rising by 1.4 kWh, from 2.9 kWh to 4.3 kWh, over the course of the month.
Average Daily Incident Shortwave Solar Energy in March
For the purposes of this report, the geographical coordinates of Walla Walla are 46.065 deg latitude, -118.343 deg longitude, and 942 ft elevation.
The topography within 2 miles of Walla Walla contains only modest variations in elevation, with a maximum elevation change of 249 feet and an average elevation above sea level of 942 feet. Within 10 miles contains only modest variations in elevation (3,264 feet). Within 50 miles contains large variations in elevation (6,115 feet).
The area within 2 miles of Walla Walla is covered by artificial surfaces (69%) and cropland (25%), within 10 miles by cropland (78%) and grassland (10%), and within 50 miles by shrubs (39%) and cropland (30%).
This report illustrates the typical weather in Walla Walla year round, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.
Temperature and Dew Point
There are 4 weather stations near enough to contribute to our estimation of the temperature and dew point in Walla Walla.
For each station, the records are corrected for the elevation difference between that station and Walla Walla according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations.
The estimated value at Walla Walla is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Walla Walla and a given station.
The stations contributing to this reconstruction are: Walla Walla Regional Airport (89%, 5.5 kilometers, northeast); Eastern Oregon Regional Airport (5%, 57 kilometers, southwest); Meacham, Meacham (2.1%, 62 kilometers, south); and Tri-Cities Airport (4.3%, 64 kilometers, west).
Time zones for aiports and weather stations are provided by AskGeo.com .