September weather forecastAssinins, MI
September
Weather in September
September, the first month of the autumn in Assinins, is still a comfortable month, with an average temperature varying between 65.8°F (18.8°C) and 49.3°F (9.6°C).Temperature
Transition into September subtly marks a drop in the average high-temperature, moderately moving from a pleasant 73°F (22.8°C) in August to an enjoyable 65.8°F (18.8°C). In September, the recorded average low-temperature is a frosty 49.3°F (9.6°C).Humidity
In Assinins, Michigan, the average relative humidity in September is 79%.Rainfall
In Assinins, in September, it is raining for 13.5 days, with typically 1.89" (48mm) of accumulated precipitation. In Assinins, Michigan, during the entire year, the rain falls for 125.7 days and collects up to 21.61" (549mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
In Assinins, the average length of the day in September is 12h and 32min.On the first day of the month, sunrise is at 7:14 am and sunset at 8:32 pm. On the last day of September, sunrise is at 7:52 am and sunset at 7:34 pm EDT.
Sunshine
The average sunshine in September is 7.5h.UV index
The average daily maximum UV index in September is 3. A UV Index estimate of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for the average person.Note: In September, an average UV index of 3 transforms into the following instructions:
Be vigilant - Preventing sunburn is recommended. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Assinins, MI
- Average high temperature in September: 65.8°F
The warmest month (with the highest average high temperature) is July (74.1°F).
The month with the lowest average high temperature is January (21.2°F).
- Average low temperature in September: 49.3°F
The months with the highest average low temperature are July and August (55.4°F).
The coldest month (with the lowest average low temperature) is January (12.4°F).
Average pressure in September
Assinins, MI
- Average pressure in September: 30"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
Assinins, MI
- Average wind speed in September: 7.9mph
The windiest months (with the highest average wind speed) are January, November and December (9.6mph).
The calmest months (with the lowest average wind speed) are June and July (7mph).
Average humidity in September
Assinins, MI
- Average humidity in September: 79%
The month with the highest relative humidity is February (90%).
The month with the lowest relative humidity is May (71%).
Average rainfall in September
Assinins, MI
- Average rainfall in September: 1.89"
The wettest month (with the highest rainfall) is April (2.52").
The driest month (with the least rainfall) is January (1.34").
Average rainfall days in September
Assinins, MI
- Average rainfall days in September: 13.5 days
The month with the highest number of rainy days is May (14.9 days).
The month with the least rainy days is February (2.9 days).
Average snowfall in September
Assinins, MI
- Average snowfall in September: 0"
The month with the highest snowfall is February (10").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Assinins, MI
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is January (25.4 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Assinins, MI
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in September: 7h and 30min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 1h and 36min).
Average sunshine days in September
Assinins, MI
- Average sunshine days in September: 14.2 days
The month with the most sunshine days is July (14.8 days).
The month with the least sunshine days is January (5.1 days).
Average UV index in September
Assinins, MI
- Average UV index in September: 3
The months with the highest UV index are July and August (UV index 5).
The months with the lowest UV index are January, February, October, November and December (UV index 1).
Average cloud cover in September
Assinins, MI
- Average cloud cover in September: 40
The month with the most cloud cover is January (Cloud cover 84).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in September
Assinins, MI
- Average visibility in September: 6mi
The months with the highest visibility are May, June, July, August, September and October (6mi).
The months with the lowest visibility are January and February (4mi).
