Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
September signifies a gentle decline in Glenn's average high-temperature, easing from a warm 75.7°F (24.3°C) in August to a pleasant 70.3°F (21.3°C). In September, Glenn encounters an average low-temperature of 58.3°F (14.6°C) during the night.Humidity
In Glenn, the average relative humidity in September is 77%.Rainfall
In Glenn, during September, the rain falls for 14.3 days and regularly aggregates up to 2.28" (58mm) of precipitation. Throughout the year, in Glenn, Michigan, there are 151.7 rainfall days, and 26.18" (665mm) of precipitation is accumulated.Snowfall
June through October are months without snowfall.Daylight
The average length of the day in September in Glenn is 12h and 28min.On the first day of the month, sunrise is at 7:10 am and sunset at 8:18 pm. On the last day of September, sunrise is at 7:41 am and sunset at 7:27 pm EDT.
Sunshine
In Glenn, the average sunshine in September is 8.5h.UV index
In September, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: In September, the average maximum UV index of 4 translates into the following recommendations:
Act with care - Obligation to protect against skin and eye damage is highlighted. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
Frequently asked questions
What is the usual temperature for Glenn in September?
What is the average humidity in September in Glenn?
How many days does it rain in September in Glenn?
When it does not snow in Glenn?
How many hours of daylight does Glenn have in September?
When are sunrise and sunset in September in Glenn?
How many hours of sunshine does Glenn have in September?
How high is the UV index in September in Glenn?
Average temperature in September
Glenn, MI
- Average high temperature in September: 70.3°F
The warmest months (with the highest average high temperature) are July and August (75.7°F).
The month with the lowest average high temperature is January (29.7°F).
- Average low temperature in September: 58.3°F
The months with the highest average low temperature are July and August (64.6°F).
The coldest month (with the lowest average low temperature) is January (21.9°F).
Average pressure in September
Glenn, MI
- Average pressure in September: 30.03"Hg
The month with the highest atmospheric pressure is March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in September
Glenn, MI
- Average wind speed in September: 9.6mph
The windiest month (with the highest average wind speed) is January (12.8mph).
The calmest month (with the lowest average wind speed) is July (7.9mph).
Average humidity in September
Glenn, MI
- Average humidity in September: 77%
The month with the highest relative humidity is January (84%).
The months with the lowest relative humidity are October and November (76%).
Average rainfall in September
Glenn, MI
- Average rainfall in September: 2.28"
The wettest month (with the highest rainfall) is October (3.19").
The driest month (with the least rainfall) is February (1.46").
Average rainfall days in September
Glenn, MI
- Average rainfall days in September: 14.3 days
The month with the highest number of rainy days is October (17 days).
The month with the least rainy days is February (5.8 days).
Average snowfall in September
Glenn, MI
- Average snowfall in September: 0"
The month with the highest snowfall is February (4.06").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in September
Glenn, MI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (16.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Glenn, MI
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in September: 8h and 3min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is January (Average sunshine: 2h and 30min).
Average sunshine days in September
Glenn, MI
- Average sunshine days in September: 13.5 days
The month with the most sunshine days is March (14.7 days).
The month with the least sunshine days is January (7.2 days).
Average UV index in September
Glenn, MI
- Average UV index in September: 4
The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in September
Glenn, MI
- Average cloud cover in September: 29
The month with the most cloud cover is January (Cloud cover 75).
The months with the least cloud cover are July and August (Cloud cover 25).
Average visibility in September
Glenn, MI
- Average visibility in September: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).
Glenn, Michigan, USA
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