September weather forecastBirch, MI
September
Weather in September
September, the first month of the autumn in Birch, is still a refreshing month, with temperature in the range of an average low of 50°F (10°C) and an average high of 65.3°F (18.5°C).Temperature
Birch's September weather features a light decline in high-temperatures, reducing from an agreeable 72.1°F (22.3°C) in August to an enjoyable 65.3°F (18.5°C). Nighttime temperatures in September average to a fresh 50°F (10°C).Humidity
In Birch, the average relative humidity in September is 79%.Rainfall
In September, in Birch, the rain falls for 13.6 days. Throughout September, 2.13" (54mm) of precipitation is accumulated. Throughout the year, there are 117.1 rainfall days, and 23.35" (593mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
In September, the average length of the day is 12h and 32min.On the first day of September, sunrise is at 7:11 am and sunset at 8:29 pm. On the last day of the month, sunrise is at 7:48 am and sunset at 7:31 pm EDT.
Sunshine
In September, the average sunshine is 7.2h.UV index
The average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for the average person.Note: A daily high UV index of 3 in September leads to these guidelines:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Birch, MI
- Average high temperature in September: 65.3°F
The warmest month (with the highest average high temperature) is July (73.2°F).
The month with the lowest average high temperature is January (21.4°F).
- Average low temperature in September: 50°F
The month with the highest average low temperature is August (56.1°F).
The coldest month (with the lowest average low temperature) is January (12.7°F).
Average pressure in September
Birch, MI
- Average pressure in September: 30"Hg
The month with the highest atmospheric pressure is March (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in September
Birch, MI
- Average wind speed in September: 8.7mph
The windiest month (with the highest average wind speed) is January (10.6mph).
The calmest months (with the lowest average wind speed) are June, July and August (7.5mph).
Average humidity in September
Birch, MI
- Average humidity in September: 79%
The month with the highest relative humidity is February (89%).
The month with the lowest relative humidity is May (72%).
Average rainfall in September
Birch, MI
- Average rainfall in September: 2.13"
The wettest month (with the highest rainfall) is April (2.91").
The driest month (with the least rainfall) is January (1.26").
Average rainfall days in September
Birch, MI
- Average rainfall days in September: 13.6 days
The month with the highest number of rainy days is May (14.3 days).
The month with the least rainy days is February (2.3 days).
Average snowfall in September
Birch, MI
- Average snowfall in September: 0"
The month with the highest snowfall is December (9.8").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Birch, MI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (23.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Birch, 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 12min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 1h and 48min).
Average sunshine days in September
Birch, MI
- Average sunshine days in September: 14.6 days
The month with the most sunshine days is July (15.8 days).
The month with the least sunshine days is January (7.3 days).
Average UV index in September
Birch, 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
Birch, MI
- Average cloud cover in September: 41
The month with the most cloud cover is January (Cloud cover 82).
The month with the least cloud cover is July (Cloud cover 34).
Average visibility in September
Birch, MI
- Average visibility in September: 6mi
The months with the highest visibility are May, June, July, August, September and October (6mi).
The month with the lowest visibility is January (4mi).
