Average Weather in May in Royalton Minnesota, United States
Daily high temperatures increase by 10°F, from 63°F to 73°F, rarely falling below 48°F or exceeding 84°F.
Daily low temperatures increase by 10°F, from 40°F to 50°F, rarely falling below 29°F or exceeding 61°F.
For reference, on July 18, the hottest day of the year, temperatures in Royalton typically range from 60°F to 82°F, while on January 20, the coldest day of the year, they range from 4°F to 22°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
Samara, Russia (5,286 miles away); Sosnovka, Kyrgyzstan (6,288 miles); and Shitanjing, China (6,429 miles) are the far-away foreign places with temperatures most similar to Royalton (view comparison).
The month of May in Royalton experiences gradually decreasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy decreasing from 52% to 46%.
The clearest day of the month is May 30, with clear, mostly clear, or partly cloudy conditions 55% of the time.
For reference, on February 5, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 62%, while on July 31, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 73%.
Cloud Cover Categories in May
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Royalton, the chance of a wet day over the course of May is rapidly increasing, starting the month at 27% and ending it at 34%.
For reference, the year's highest daily chance of a wet day is 41% on June 25, and its lowest chance is 6% on February 3.
Over the course of May in Royalton, the chance of a day with only rain increases from 25% to 34%, 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 Royalton is increasing, starting the month at 2.5 inches, when it rarely exceeds 4.6 inches or falls below 0.8 inches, and ending the month at 3.4 inches, when it rarely exceeds 6.1 inches or falls below 1.3 inches.
Average Monthly Rainfall in May
Over the course of May in Royalton, 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, 15 seconds, and weekly increase of 15 minutes, 45 seconds.
The shortest day of the month is May 1, with 14 hours, 20 minutes of daylight and the longest day is May 31, with 15 hours, 28 minutes of daylight.
Hours of Daylight and Twilight in May
The latest sunrise of the month in Royalton is 6:04 AM on May 1 and the earliest sunrise is 33 minutes earlier at 5:31 AM on May 31.
The earliest sunset is 8:24 PM on May 1 and the latest sunset is 34 minutes later at 8:59 PM on May 31.
Daylight saving time is observed in Royalton 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 5:27 AM and sets 15 hours, 44 minutes later, at 9:10 PM, while on December 21, the shortest day of the year, it rises at 7:55 AM and sets 8 hours, 40 minutes later, at 4:35 PM.
Sunrise & Sunset with Twilight in May
The chance that a given day will be muggy in Royalton 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 23% 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 May
The average hourly wind speed in Royalton is decreasing during May, decreasing from 12.0 miles per hour to 10.5 miles per hour over the course of the month.
For reference, on April 2, the windiest day of the year, the daily average wind speed is 12.6 miles per hour, while on August 1, 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 Royalton typically lasts for 4.6 months (142 days), from around May 9 to around September 28, rarely starting before April 20 or after May 27, and rarely ending before September 11 or after October 15.
During May in Royalton, the chance that a given day is within the growing season is very rapidly increasing rising from 31% to 94% 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 Royalton are increasing during May, increasing by 250°F, from 101°F to 351°F, over the course of the month.
Growing Degree Days in May
The average daily incident shortwave solar energy in Royalton is gradually increasing during May, rising by 0.8 kWh, from 5.7 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 Royalton are 45.830 deg latitude, -94.294 deg longitude, and 1,079 ft elevation.
The topography within 2 miles of Royalton is essentially flat, with a maximum elevation change of 92 feet and an average elevation above sea level of 1,083 feet. Within 10 miles is essentially flat (295 feet). Within 50 miles contains only modest variations in elevation (679 feet).
The area within 2 miles of Royalton is covered by cropland (85%), within 10 miles by cropland (83%) and trees (11%), and within 50 miles by cropland (61%) and trees (29%).
This report illustrates the typical weather in Royalton 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 3 weather stations near enough to contribute to our estimation of the temperature and dew point in Royalton.
For each station, the records are corrected for the elevation difference between that station and Royalton 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 Royalton is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Royalton and a given station.
The stations contributing to this reconstruction are: Little Falls, Little Falls/Morrison County Airport-Lindbergh Field (75%, 14 kilometers, north); St. Cloud Regional Airport (17%, 37 kilometers, southeast); and Paynesville Municipal Airport (8%, 62 kilometers, southwest).
Time zones for aiports and weather stations are provided by AskGeo.com .