September weather forecastOak Grove, MI
September
Weather in September
September, the first month of the autumn in Oak Grove, is still a pleasant month, with an average temperature fluctuating between 71.2°F (21.8°C) and 53.1°F (11.7°C).Temperature
The average high-temperature slightly decreases in September, shifting from a warm 77.5°F (25.3°C) in August to a pleasant 71.2°F (21.8°C). Oak Grove, in September, witnesses an average low-temperature of 53.1°F (11.7°C).Humidity
In Oak Grove, the average relative humidity in September is 80%.Rainfall
In Oak Grove, in September, during 12.7 rainfall days, 1.69" (43mm) of precipitation is typically accumulated. In Oak Grove, during the entire year, the rain falls for 148.5 days and collects up to 23.39" (594mm) of precipitation.Snowfall
In Oak Grove, snow does not fall in June through September.Daylight
The average length of the day in September is 12h and 29min.On the first day of September, sunrise is at 7:01 am and sunset at 8:09 pm. On the last day of the month, sunrise is at 7:32 am and sunset at 7:18 pm EDT.
Sunshine
In Oak Grove, the average sunshine in September is 7.8h.UV index
In September, the average daily maximum UV index is 3. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: The daily high UV index of 3 during September translates into the following recommendations:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. The Sun's radiation is especially intense around midday; try to stay in shade during this period. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Oak Grove, MI
- Average high temperature in September: 71.2°F
The warmest month (with the highest average high temperature) is July (79.2°F).
The month with the lowest average high temperature is January (27.7°F).
- Average low temperature in September: 53.1°F
The month with the highest average low temperature is July (61.2°F).
The coldest month (with the lowest average low temperature) is January (17.1°F).
Average pressure in September
Oak Grove, MI
- Average pressure in September: 30.03"Hg
The months with the highest atmospheric pressure are March and November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Oak Grove, MI
- Average wind speed in September: 7.2mph
The windiest months (with the highest average wind speed) are January and February (10.1mph).
The calmest month (with the lowest average wind speed) is July (6.5mph).
Average humidity in September
Oak Grove, MI
- Average humidity in September: 80%
The months with the highest relative humidity are January and February (87%).
The month with the lowest relative humidity is April (77%).
Average rainfall in September
Oak Grove, MI
- Average rainfall in September: 1.69"
The wettest month (with the highest rainfall) is May (2.91").
The driest month (with the least rainfall) is December (1.3").
Average rainfall days in September
Oak Grove, MI
- Average rainfall days in September: 12.7 days
The month with the highest number of rainy days is May (17.6 days).
The month with the least rainy days is February (5.6 days).
Average snowfall in September
Oak Grove, MI
- Average snowfall in September: 0"
The month with the highest snowfall is February (4.57").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Oak Grove, MI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (16 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Oak Grove, MI
- Average daylight in September: 12h and 30min
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: 7h and 48min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 2h and 48min).
Average sunshine days in September
Oak Grove, MI
- Average sunshine days in September: 15 days
The month with the most sunshine days is September (15 days).
The month with the least sunshine days is February (9.9 days).
Average UV index in September
Oak Grove, MI
- Average UV index in September: 3
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in September
Oak Grove, MI
- Average cloud cover in September: 37
The month with the most cloud cover is January (Cloud cover 71).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in September
Oak Grove, MI
- Average visibility in September: 5mi
The months with the highest visibility are March, April, May, June, July, August, October and November (6mi).
The months with the lowest visibility are January, February, September and December (5mi).





