Average Weather in May in Marshall Minnesota, United States
Daily high temperatures increase by 10°F, from 65°F to 75°F, rarely falling below 49°F or exceeding 87°F.
Daily low temperatures increase by 11°F, from 43°F to 54°F, rarely falling below 33°F or exceeding 64°F.
For reference, on July 18, the hottest day of the year, temperatures in Marshall typically range from 63°F to 83°F, while on January 15, the coldest day of the year, they range from 8°F to 25°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 Marshall experiences gradually decreasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy decreasing from 49% to 44%.
The clearest day of the month is May 29, with clear, mostly clear, or partly cloudy conditions 56% of the time.
For reference, on February 5, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 58%, while on July 28, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 75%.
Cloud Cover Categories in May
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Marshall, the chance of a wet day over the course of May is rapidly increasing, starting the month at 30% and ending it at 37%.
For reference, the year's highest daily chance of a wet day is 41% on June 12, and its lowest chance is 6% on January 30.
Over the course of May in Marshall, the chance of a day with only rain increases from 29% to 37%, 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 0% throughout.
Probability of Precipitation in May
The average sliding 31-day rainfall during May in Marshall is increasing, starting the month at 2.5 inches, when it rarely exceeds 4.3 inches or falls below 1.1 inches, and ending the month at 3.3 inches, when it rarely exceeds 5.7 inches or falls below 1.4 inches.
Average Monthly Rainfall in May
Over the course of May in Marshall, 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, 4 minutes, implying an average daily increase of 2 minutes, 8 seconds, and weekly increase of 14 minutes, 53 seconds.
The shortest day of the month is May 1, with 14 hours, 14 minutes of daylight and the longest day is May 31, with 15 hours, 18 minutes of daylight.
Hours of Daylight and Twilight in May
The latest sunrise of the month in Marshall is 6:13 AM on May 1 and the earliest sunrise is 31 minutes earlier at 5:42 AM on May 31.
The earliest sunset is 8:27 PM on May 1 and the latest sunset is 32 minutes later at 8:59 PM on May 31.
Daylight saving time is observed in Marshall 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 5:38 AM and sets 15 hours, 33 minutes later, at 9:11 PM, while on December 21, the shortest day of the year, it rises at 7:56 AM and sets 8 hours, 50 minutes later, at 4:46 PM.
Sunrise & Sunset with Twilight in May
The chance that a given day will be muggy in Marshall is essentially constant during May, remaining within 1% of 1% throughout.
For reference, on July 20, the muggiest day of the year, there are muggy conditions 29% of the time, while on October 23, the least muggy day of the year, there are muggy conditions 0% of the time.
Humidity Comfort Levels in May
The average hourly wind speed in Marshall is decreasing during May, decreasing from 12.8 miles per hour to 11.2 miles per hour over the course of the month.
For reference, on April 9, the windiest day of the year, the daily average wind speed is 13.3 miles per hour, while on August 2, the calmest day of the year, the daily average wind speed is 8.9 miles per hour.
Average Wind Speed in May
Wind Direction in May
The growing season in Marshall typically lasts for 5.2 months (159 days), from around April 27 to around October 3, rarely starting before April 7 or after May 18, and rarely ending before September 16 or after October 23.
The month of May in Marshall is more likely than not fully within the growing season, with the chance that a given day is in the growing season rapidly increasing from 58% to 99% 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 Marshall are increasing during May, increasing by 300°F, from 135°F to 435°F, over the course of the month.
Growing Degree Days in May
The average daily incident shortwave solar energy in Marshall 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 Marshall are 44.447 deg latitude, -95.788 deg longitude, and 1,158 ft elevation.
The topography within 2 miles of Marshall is essentially flat, with a maximum elevation change of 52 feet and an average elevation above sea level of 1,157 feet. Within 10 miles is essentially flat (515 feet). Within 50 miles contains significant variations in elevation (1,230 feet).
The area within 2 miles of Marshall is covered by cropland (60%) and artificial surfaces (40%), within 10 miles by cropland (98%), and within 50 miles by cropland (96%).
This report illustrates the typical weather in Marshall 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 Marshall.
For each station, the records are corrected for the elevation difference between that station and Marshall 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 Marshall is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Marshall and a given station.
The stations contributing to this reconstruction are: Marshall, Southwest Minnesota Regional Airport - Marshall/Ryan Field (95%, 2.3 kilometers, west); Tracy Municipal Airport (2.5%, 26 kilometers, southeast); Granite Falls Municipal Airport/Lenzen-Roe Memorial Field (1.4%, 39 kilometers, northeast); and Redwood Falls Municipal Airport (0.8%, 57 kilometers, east).
Time zones for aiports and weather stations are provided by AskGeo.com .