Average Weather in May in Jenison Michigan, United States
Daily low temperatures increase by 10°F, from 45°F to 54°F, rarely falling below 34°F or exceeding 66°F.
For reference, on July 19, the hottest day of the year, temperatures in Jenison typically range from 64°F to 82°F, while on January 29, the coldest day of the year, they range from 19°F to 30°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 Jenison experiences gradually decreasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy decreasing from 52% to 48%.
The clearest day of the month is May 31, with clear, mostly clear, or partly cloudy conditions 52% of the time.
For reference, on January 8, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 70%, while on August 26, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 67%.
Cloud Cover Categories in May
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Jenison, the chance of a wet day over the course of May is essentially constant, remaining around 31% throughout.
For reference, the year's highest daily chance of a wet day is 33% on September 21, and its lowest chance is 17% on February 8.
Probability of Precipitation in May
The average sliding 31-day rainfall during May in Jenison is essentially constant, remaining about 3.0 inches throughout, and rarely exceeding 5.4 inches or falling below 1.1 inches.
The highest average 31-day accumulation is 3.1 inches on May 30.
Average Monthly Rainfall in May
Over the course of May in Jenison, the length of the day is increasing. From the start to the end of the month, the length of the day increases by 60 minutes, implying an average daily increase of 1 minute, 60 seconds, and weekly increase of 13 minutes, 57 seconds.
The shortest day of the month is May 1, with 14 hours, 7 minutes of daylight and the longest day is May 31, with 15 hours, 7 minutes of daylight.
Hours of Daylight and Twilight in May
The latest sunrise of the month in Jenison is 6:36 AM on May 1 and the earliest sunrise is 29 minutes earlier at 6:07 AM on May 31.
The earliest sunset is 8:44 PM on May 1 and the latest sunset is 30 minutes later at 9:14 PM on May 31.
Daylight saving time is observed in Jenison during 2017, 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 6:04 AM and sets 15 hours, 21 minutes later, at 9:25 PM, while on December 21, the shortest day of the year, it rises at 8:11 AM and sets 9 hours, 1 minute later, at 5:11 PM.
Sunrise & Sunset with Twilight in May
The chance that a given day will be muggy in Jenison is increasing during May, rising from 1% to 8% over the course of the month.
For reference, on July 28, the muggiest day of the year, there are muggy conditions 37% 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 Jenison is decreasing during May, decreasing from 11.1 miles per hour to 9.5 miles per hour over the course of the month.
For reference, on January 12, the windiest day of the year, the daily average wind speed is 13.2 miles per hour, while on August 3, the calmest day of the year, the daily average wind speed is 8.1 miles per hour.
Average Wind Speed in May
Wind Direction in May
Jenison is located near a large body of water (e.g., ocean, sea, or large lake). This section reports on the wide-area average surface temperature of that water.
The average surface water temperature in Jenison is rapidly increasing during May, rising by 7°F, from 40°F to 47°F, over the course of the month.
Average Water Temperature in May
The growing season in Jenison typically lasts for 5.6 months (172 days), from around April 27 to around October 15, rarely starting before April 9 or after May 16, and rarely ending before September 27 or after November 4.
The month of May in Jenison 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 61% 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 Jenison are increasing during May, increasing by 311°F, from 158°F to 470°F, over the course of the month.
Growing Degree Days in May
The average daily incident shortwave solar energy in Jenison is gradually increasing during May, rising by 0.8 kWh, from 5.8 kWh to 6.7 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 Jenison are 42.907 deg latitude, -85.792 deg longitude, and 617 ft elevation.
The topography within 2 miles of Jenison contains only modest variations in elevation, with a maximum elevation change of 151 feet and an average elevation above sea level of 616 feet. Within 10 miles also contains only modest variations in elevation (348 feet). Within 50 miles contains only modest variations in elevation (656 feet).
The area within 2 miles of Jenison is covered by artificial surfaces (80%) and trees (13%), within 10 miles by artificial surfaces (48%) and cropland (43%), and within 50 miles by cropland (40%) and trees (29%).
This report illustrates the typical weather in Jenison 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 Jenison.
For each station, the records are corrected for the elevation difference between that station and Jenison 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 Jenison is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Jenison and a given station.
The stations contributing to this reconstruction are: Gerald R. Ford International Airport (51%, 22 kilometers, east); West Michigan Regional Airport (32%, 31 kilometers, southwest); and Muskegon County Airport (17%, 47 kilometers, northwest).
Time zones for aiports and weather stations are provided by AskGeo.com .