Average Weather in March in Zillah Washington, United States
Daily low temperatures increase by 5°F, from 33°F to 37°F, rarely falling below 24°F or exceeding 46°F.
For reference, on July 30, the hottest day of the year, temperatures in Zillah typically range from 60°F to 92°F, while on December 23, the coldest day of the year, they range from 25°F to 36°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 Zillah experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 59% throughout the month.
The clearest day of the month is March 31, with clear, mostly clear, or partly cloudy conditions 42% of the time.
For reference, on January 16, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 65%, while on August 4, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 83%.
Cloud Cover Categories in March
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Zillah, the chance of a wet day over the course of March is rapidly decreasing, starting the month at 21% and ending it at 14%.
For reference, the year's highest daily chance of a wet day is 29% on November 28, and its lowest chance is 3% on August 16.
Over the course of March in Zillah, the chance of a day with only rain decreases from 19% to 14%, 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 Zillah is gradually decreasing, starting the month at 1.0 inches, when it rarely exceeds 1.9 inches or falls below 0.2 inches, and ending the month at 0.7 inches, when it rarely exceeds 1.4 inches or falls below 0.2 inches.
Average Monthly Rainfall in March
Over the course of March in Zillah, 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, 39 minutes, implying an average daily increase of 3 minutes, 18 seconds, and weekly increase of 23 minutes, 9 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, 47 minutes of daylight.
Hours of Daylight and Twilight in March
The earliest sunrise of the month in Zillah is 6:20 AM on March 11 and the latest sunrise is 58 minutes later at 7:18 AM on March 12.
The earliest sunset is 5:47 PM on March 1 and the latest sunset is 1 hour, 41 minutes later at 7:29 PM on March 31.
Daylight saving time (DST) starts at 3:00 AM on March 12, 2017, shifting sunrise and sunset to be an hour later.
For reference, on June 21, the longest day of the year, the Sun rises at 5:08 AM and sets 15 hours, 49 minutes later, at 8:57 PM, while on December 21, the shortest day of the year, it rises at 7:41 AM and sets 8 hours, 35 minutes later, at 4:17 PM.
Sunrise & Sunset with Twilight and Daylight Saving Time in March
The chance that a given day will be muggy in Zillah is essentially constant during March, remaining around 0% throughout.
For reference, on July 15, 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 Zillah is gradually increasing during March, increasing from 7.5 miles per hour to 8.0 miles per hour over the course of the month.
For reference, on March 31, the windiest day of the year, the daily average wind speed is 8.0 miles per hour, while on December 20, the calmest day of the year, the daily average wind speed is 6.7 miles per hour.
The highest daily average wind speed during March is 8.0 miles per hour on March 31.
Average Wind Speed in March
Wind Direction in March
The growing season in Zillah typically lasts for 5.9 months (180 days), from around April 18 to around October 16, rarely starting before March 31 or after May 7, and rarely ending before September 28 or after November 2.
The month of March in Zillah is very likely fully outside of the growing season, with the chance that a given day is in the growing season gradually increasing from 0% to 9% 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 Zillah are gradually increasing during March, increasing by 62°F, from 15°F to 77°F, over the course of the month.
Growing Degree Days in March
The average daily incident shortwave solar energy in Zillah is increasing during March, rising by 1.5 kWh, from 3.0 kWh to 4.5 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 Zillah are 46.402 deg latitude, -120.262 deg longitude, and 801 ft elevation.
The topography within 2 miles of Zillah contains only modest variations in elevation, with a maximum elevation change of 318 feet and an average elevation above sea level of 813 feet. Within 10 miles contains only modest variations in elevation (2,405 feet). Within 50 miles contains large variations in elevation (6,709 feet).
The area within 2 miles of Zillah is covered by cropland (76%) and artificial surfaces (22%), within 10 miles by cropland (59%) and shrubs (28%), and within 50 miles by shrubs (63%) and cropland (20%).
This report illustrates the typical weather in Zillah 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 Zillah.
For each station, the records are corrected for the elevation difference between that station and Zillah 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 Zillah is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Zillah and a given station.
The stations contributing to this reconstruction are: Yakima Air Terminal Airport (59%, 28 kilometers, northwest); Hanford (24%, 54 kilometers, east); Hermiston Municipal Airport (9%, 100 kilometers, southeast); and The Dalles Municipal Airport (8%, 112 kilometers, southwest).
Time zones for aiports and weather stations are provided by AskGeo.com .