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 sea temperature 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
The arrival of September is marked by a minor reduction in average high-temperature, sliding from a warm 73.6°F (23.1°C) in August to a comfortable 67.5°F (19.7°C). In Greilickville, the average temperature during the nights of September drops to a cool 54°F (12.2°C).Humidity
In Greilickville, the average relative humidity in September is 78%.Rainfall
In Greilickville, Michigan, in September, it is raining for 8.9 days, with typically 0.51" (13mm) of accumulated precipitation. Throughout the year, there are 94.8 rainfall days, and 8.35" (212mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall.Ocean temperature
In Greilickville, the average seawater temperature in September is 65.8°F (18.8°C).Note: Swimming is not a pleasant activity for most individuals in 65.8°F (18.8°C). Breathing becomes increasingly challenging to control as the water temperature dips from 69.8°F (21°C) to 59°F (15°C).
Daylight
In September, the average length of the day is 12h and 31min.On the first day of September, sunrise is at 7:05 am and sunset at 8:18 pm. On the last day of the month, sunrise is at 7:40 am and sunset at 7:24 pm EDT.
Sunshine
In September, the average sunshine in Greilickville is 8.1h.UV index
In September, the average daily maximum UV index is 3. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the average person.Note: The maximum daily UV index of 3 in September interprets into the following recommendations:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Frequently asked questions
What is the usual temperature for Greilickville in September?
What is the average humidity in September in Greilickville?
How many days does it rain in September in Greilickville?
When it does not snow in Greilickville?
Does it snow in Greilickville in September?
What is the ocean temperature in September in Greilickville?
How many hours of daylight does Greilickville have in September?
What time are sunrise and sunset in September in Greilickville?
How long on average sun shines in September in Greilickville?
What is the UV index reading in September in Greilickville?
Average temperature in September
Greilickville, MI
- Average high temperature in September: 67.5°F
The warmest month (with the highest average high temperature) is August (73.6°F).
The month with the lowest average high temperature is January (25.7°F).
- Average low temperature in September: 54°F
The month with the highest average low temperature is August (59.5°F).
The coldest months (with the lowest average low temperature) are January and February (18.1°F).
Average pressure in September
Greilickville, MI
- Average pressure in September: 30.02"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
Greilickville, MI
- Average wind speed in September: 8.9mph
The windiest months (with the highest average wind speed) are January and December (12mph).
The calmest month (with the lowest average wind speed) is July (7.4mph).
Average humidity in September
Greilickville, MI
- Average humidity in September: 78%
The month with the highest relative humidity is January (87%).
The months with the lowest relative humidity are April and May (77%).
Average rainfall in September
Greilickville, MI
- Average rainfall in September: 0.51"
The wettest month (with the highest rainfall) is May (0.98").
The driest month (with the least rainfall) is February (0.47").
Average rainfall days in September
Greilickville, MI
- Average rainfall days in September: 8.9 days
The month with the highest number of rainy days is May (11.5 days).
The month with the least rainy days is February (2.1 days).
Average snowfall in September
Greilickville, MI
- Average snowfall in September: 0"
The months with the highest snowfall are January and November (2.2").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Greilickville, MI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (15.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in September
Greilickville, MI
- Average sea temperature in September: 65.8°F
The best month for swimming (with the highest average sea temperature) is August (69.7°F).
The coldest month (with the lowest average sea temperature) is March (35.4°F).
Average daylight in September /
Average sunshine in September
Greilickville, MI
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in September: 8h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 1h and 48min).
Average sunshine days in September
Greilickville, MI
- Average sunshine days in September: 18.2 days
The month with the most sunshine days is March (18.8 days).
The month with the least sunshine days is February (14.6 days).
Average UV index in September
Greilickville, MI
- Average UV index in September: 3
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 1).
Average cloud cover in September
Greilickville, MI
- Average cloud cover in September: 33
The month with the most cloud cover is January (Cloud cover 82).
The month with the least cloud cover is July (Cloud cover 29).
Average visibility in September
Greilickville, MI
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Greilickville, Michigan, USA
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