Average Weather in May in Elgin Oregon, United States
Daily high temperatures increase by 7°F, from 61°F to 68°F, rarely falling below 49°F or exceeding 81°F.
Daily low temperatures increase by 6°F, from 38°F to 45°F, rarely falling below 31°F or exceeding 52°F.
For reference, on August 3, the hottest day of the year, temperatures in Elgin typically range from 52°F to 85°F, while on December 23, the coldest day of the year, they range from 25°F to 35°F.
Average High and Low Temperature in May
The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on May. 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 May
The month of May in Elgin experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 54% throughout the month.
The clearest day of the month is May 31, with clear, mostly clear, or partly cloudy conditions 47% of the time.
For reference, on November 30, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 67%, 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 May
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Elgin, the chance of a wet day over the course of May is increasing, starting the month at 24% and ending it at 29%.
For reference, the year's highest daily chance of a wet day is 36% on December 1, and its lowest chance is 7% on August 5.
Probability of Precipitation in May
The average sliding 31-day rainfall during May in Elgin is essentially constant, remaining about 1.7 inches throughout, and rarely exceeding 3.3 inches or falling below 0.6 inches.
The highest average 31-day accumulation is 1.8 inches on May 22.
Average Monthly Rainfall in May
Over the course of May in Elgin, 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, 7 minutes, implying an average daily increase of 2 minutes, 13 seconds, and weekly increase of 15 minutes, 34 seconds.
The shortest day of the month is May 1, with 14 hours, 19 minutes of daylight and the longest day is May 31, with 15 hours, 26 minutes of daylight.
Hours of Daylight and Twilight in May
The latest sunrise of the month in Elgin is 5:39 AM on May 1 and the earliest sunrise is 33 minutes earlier at 5:06 AM on May 31.
The earliest sunset is 7:58 PM on May 1 and the latest sunset is 34 minutes later at 8:32 PM on May 31.
Daylight saving time is observed in Elgin during 2018, but it neither starts nor ends during May, so the entire month is in daylight saving time.
For reference, on June 21, the longest day of the year, the Sun rises at 5:02 AM and sets 15 hours, 42 minutes later, at 8:44 PM, while on December 21, the shortest day of the year, it rises at 7:28 AM and sets 8 hours, 42 minutes later, at 4:10 PM.
Sunrise & Sunset with Twilight in May
The chance that a given day will be muggy in Elgin is essentially constant during May, remaining around 0% throughout.
Humidity Comfort Levels in May
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The average hourly wind speed in Elgin is essentially constant during May, remaining within 0.3 miles per hour of 5.8 miles per hour throughout.
For reference, on January 16, the windiest day of the year, the daily average wind speed is 8.4 miles per hour, while on August 12, the calmest day of the year, the daily average wind speed is 5.1 miles per hour.
Average Wind Speed in May
Wind Direction in May
The growing season in Elgin typically lasts for 4.5 months (139 days), from around May 10 to around September 26, rarely starting before April 22 or after May 31, and rarely ending before September 7 or after October 15.
During May in Elgin, the chance that a given day is within the growing season is very rapidly increasing rising from 28% to 90% over the course of the month.
Time Spent in Various Temperature Bands and the Growing Season in May
The average accumulated growing degree days in Elgin are gradually increasing during May, increasing by 164°F, from 92°F to 255°F, over the course of the month.
Growing Degree Days in May
The average daily incident shortwave solar energy in Elgin is gradually increasing during May, rising by 0.7 kWh, from 5.9 kWh to 6.6 kWh, over the course of the month.
Average Daily Incident Shortwave Solar Energy in May
For the purposes of this report, the geographical coordinates of Elgin are 45.565 deg latitude, -117.917 deg longitude, and 2,930 ft elevation.
The topography within 2 miles of Elgin contains very significant variations in elevation, with a maximum elevation change of 909 feet and an average elevation above sea level of 2,835 feet. Within 10 miles contains very significant variations in elevation (3,241 feet). Within 50 miles contains large variations in elevation (9,350 feet).
The area within 2 miles of Elgin is covered by shrubs (33%), cropland (32%), and grassland (30%), within 10 miles by shrubs (46%) and trees (24%), and within 50 miles by shrubs (42%) and trees (30%).
This report illustrates the typical weather in Elgin 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 Elgin.
For each station, the records are corrected for the elevation difference between that station and Elgin 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 Elgin is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Elgin and a given station.
The stations contributing to this reconstruction are: La Grande Municipal Airport (51%, 32 kilometers, south); Meacham, Meacham (30%, 40 kilometers, west); Walla Walla Regional Airport (12%, 66 kilometers, northwest); and Lewiston–Nez Perce County Airport (7%, 114 kilometers, northeast).
Time zones for aiports and weather stations are provided by AskGeo.com .