Average Weather in September in Elk Rapids Michigan, United States
Daily high temperatures decrease by 11°F, from 74°F to 63°F, rarely falling below 51°F or exceeding 83°F.
Daily low temperatures decrease by 9°F, from 56°F to 46°F, rarely falling below 36°F or exceeding 66°F.
For reference, on July 19, the hottest day of the year, temperatures in Elk Rapids typically range from 59°F to 79°F, while on January 29, the coldest day of the year, they range from 16°F to 28°F.
Average High and Low Temperature in September
The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on September. 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 September
The month of September in Elk Rapids experiences gradually increasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy increasing from 35% to 42%.
The clearest day of the month is September 2, with clear, mostly clear, or partly cloudy conditions 65% of the time.
For reference, on January 11, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 77%, while on August 3, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 68%.
Cloud Cover Categories in September
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 Elk Rapids, the chance of a wet day over the course of September is gradually increasing, starting the month at 31% and ending it at 34%.
For reference, the year's highest daily chance of a wet day is 35% on September 22, and its lowest chance is 16% on February 10.
Probability of Precipitation in September
The average sliding 31-day rainfall during September in Elk Rapids is gradually increasing, starting the month at 2.9 inches, when it rarely exceeds 4.5 inches or falls below 1.4 inches, and ending the month at 3.2 inches, when it rarely exceeds 4.9 inches or falls below 1.5 inches.
The highest average 31-day accumulation is 3.2 inches on September 21.
Average Monthly Rainfall in September
Over the course of September in Elk Rapids, the length of the day is rapidly decreasing. From the start to the end of the month, the length of the day decreases by 1 hour, 29 minutes, implying an average daily decrease of 3 minutes, 5 seconds, and weekly decrease of 21 minutes, 32 seconds.
The shortest day of the month is September 30, with 11 hours, 45 minutes of daylight and the longest day is September 1, with 13 hours, 15 minutes of daylight.
Hours of Daylight and Twilight in September
The earliest sunrise of the month in Elk Rapids is 7:03 AM on September 1 and the latest sunrise is 35 minutes later at 7:38 AM on September 30.
The latest sunset is 8:18 PM on September 1 and the earliest sunset is 55 minutes earlier at 7:23 PM on September 30.
Daylight saving time is observed in Elk Rapids during 2018, but it neither starts nor ends during September, so the entire month is in daylight saving time.
For reference, on June 21, the longest day of the year, the Sun rises at 5:55 AM and sets 15 hours, 36 minutes later, at 9:31 PM, while on December 21, the shortest day of the year, it rises at 8:16 AM and sets 8 hours, 47 minutes later, at 5:03 PM.
Sunrise & Sunset with Twilight in September
The chance that a given day will be muggy in Elk Rapids is rapidly decreasing during September, falling from 12% to 2% over the course of the month.
For reference, on July 30, the muggiest day of the year, there are muggy conditions 19% 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 September
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The average hourly wind speed in Elk Rapids is increasing during September, increasing from 10.1 miles per hour to 11.7 miles per hour over the course of the month.
For reference, on January 4, the windiest day of the year, the daily average wind speed is 14.3 miles per hour, while on July 22, the calmest day of the year, the daily average wind speed is 8.9 miles per hour.
Average Wind Speed in September
Wind Direction in September
Elk Rapids 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 Elk Rapids is decreasing during September, falling by 7°F, from 67°F to 60°F, over the course of the month.
Average Water Temperature in September
The growing season in Elk Rapids typically lasts for 4.9 months (149 days), from around May 16 to around October 12, rarely starting before April 28 or after June 2, and rarely ending before September 24 or after November 3.
The month of September in Elk Rapids is more likely than not fully within the growing season, with the chance that a given day is in the growing season rapidly decreasing from 100% to 79% over the course of the month.
Time Spent in Various Temperature Bands and the Growing Season in September
The average accumulated growing degree days in Elk Rapids are increasing during September, increasing by 315°F, from 1,825°F to 2,140°F, over the course of the month.
Growing Degree Days in September
The average daily incident shortwave solar energy in Elk Rapids is rapidly decreasing during September, falling by 1.5 kWh, from 5.3 kWh to 3.8 kWh, over the course of the month.
Average Daily Incident Shortwave Solar Energy in September
For the purposes of this report, the geographical coordinates of Elk Rapids are 44.896 deg latitude, -85.416 deg longitude, and 574 ft elevation.
The topography within 2 miles of Elk Rapids is essentially flat, with a maximum elevation change of 95 feet and an average elevation above sea level of 586 feet. Within 10 miles is essentially flat (430 feet). Within 50 miles contains only modest variations in elevation (1,234 feet).
The area within 2 miles of Elk Rapids is covered by water (67%) and artificial surfaces (12%), within 10 miles by water (54%) and trees (19%), and within 50 miles by trees (45%) and water (35%).
This report illustrates the typical weather in Elk Rapids 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 2 weather stations near enough to contribute to our estimation of the temperature and dew point in Elk Rapids.
For each station, the records are corrected for the elevation difference between that station and Elk Rapids 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 Elk Rapids is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Elk Rapids and a given station.
Time zones for aiports and weather stations are provided by AskGeo.com .