September weather forecastFuller, MI
September
Weather in September
The first month of the autumn, September, is still a comfortable month in Fuller, Michigan, with an average temperature fluctuating between 66.6°F (19.2°C) and 47.8°F (8.8°C).Temperature
The arrival of September signals a subtle shift in temperature, down from a moderately hot 74.5°F (23.6°C) in August to a refreshing 66.6°F (19.2°C). Fuller's nighttime temperature in September drops to an average of 47.8°F (8.8°C).Humidity
In Fuller, the average relative humidity in September is 80%.Rainfall
In Fuller, during September, the rain falls for 12.5 days and regularly aggregates up to 1.69" (43mm) of precipitation. Throughout the year, there are 120.5 rainfall days, and 19.17" (487mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
The average length of the day in September is 12h and 32min.On the first day of September, sunrise is at 6:17 am and sunset at 7:34 pm. On the last day of the month, sunrise is at 6:54 am and sunset at 6:37 pm CDT.
Sunshine
The average sunshine in September in Fuller is 7.7h.UV index
In Fuller, the average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum daily UV index of 3 in September converts into the following recommendations:
Make use of precautions - Suggestions to resist sunburn are communicated. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Fuller, MI
- Average high temperature in September: 66.6°F
The warmest month (with the highest average high temperature) is July (77°F).
The month with the lowest average high temperature is January (19.6°F).
- Average low temperature in September: 47.8°F
The month with the highest average low temperature is July (56.1°F).
The coldest month (with the lowest average low temperature) is January (8.6°F).
Average pressure in September
Fuller, MI
- Average pressure in September: 30.01"Hg
The month with the highest atmospheric pressure is March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in September
Fuller, MI
- Average wind speed in September: 7.4mph
The windiest months (with the highest average wind speed) are January and November (8.5mph).
The calmest month (with the lowest average wind speed) is August (6.8mph).
Average humidity in September
Fuller, MI
- Average humidity in September: 80%
The months with the highest relative humidity are January and February (91%).
The month with the lowest relative humidity is May (71%).
Average rainfall in September
Fuller, MI
- Average rainfall in September: 1.69"
The wettest months (with the highest rainfall) are May and June (2.24").
The driest month (with the least rainfall) is January (0.91").
Average rainfall days in September
Fuller, MI
- Average rainfall days in September: 12.5 days
The month with the highest number of rainy days is May (15.8 days).
The month with the least rainy days is February (2.8 days).
Average snowfall in September
Fuller, MI
- Average snowfall in September: 0"
The month with the highest snowfall is December (7.32").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Fuller, MI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (23.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Fuller, MI
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in September: 7h and 42min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 2h and 0min).
Average sunshine days in September
Fuller, MI
- Average sunshine days in September: 14.5 days
The month with the most sunshine days is September (14.5 days).
The months with the least sunshine days are January and February (7.8 days).
Average UV index in September
Fuller, 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, November and December (UV index 1).
Average cloud cover in September
Fuller, MI
- Average cloud cover in September: 45
The months with the most cloud cover are January and February (Cloud cover 81).
The month with the least cloud cover is July (Cloud cover 37).
Average visibility in September
Fuller, MI
- Average visibility in September: 5mi
The months with the highest visibility are May and June (6mi).
The months with the lowest visibility are January and February (4mi).





