September weather forecastSpring Arbor, MI
September
Weather in September
September, the first month of the autumn in Spring Arbor, is also an agreeable month, with temperature in the range of an average low of 53.4°F (11.9°C) and an average high of 71.6°F (22°C).Temperature
In September, the average high-temperature marginally drops from a warm 77.4°F (25.2°C) in August to a pleasant 71.6°F (22°C). The average low-temperature, in September, is a fresh 53.4°F (11.9°C).Humidity
The average relative humidity in September is 80%.Rainfall
In Spring Arbor, in September, it is raining for 13.8 days, with typically 1.69" (43mm) of accumulated precipitation. In Spring Arbor, Michigan, during the entire year, the rain falls for 155.4 days and collects up to 25.59" (650mm) of precipitation.Snowfall
In Spring Arbor, snow does not fall in June through September.Daylight
The average length of the day in September is 12h and 28min.On the first day of the month, sunrise is at 7:04 am and sunset at 8:11 pm. On the last day of September, sunrise is at 7:34 am and sunset at 7:20 pm EDT.
Sunshine
The average sunshine in September is 7.9h.UV index
In Spring Arbor, the average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.Note: In September, the UV index of 3 transforms into the following advice:
Undertake protective steps - Preventing sun damage is advised. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Spring Arbor, MI
- Average high temperature in September: 71.6°F
The warmest month (with the highest average high temperature) is July (78.6°F).
The month with the lowest average high temperature is January (27.9°F).
- Average low temperature in September: 53.4°F
The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (16.9°F).
Average pressure in September
Spring Arbor, 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
Spring Arbor, MI
- Average wind speed in September: 7.3mph
The windiest month (with the highest average wind speed) is January (10.5mph).
The calmest months (with the lowest average wind speed) are July and August (6.5mph).
Average humidity in September
Spring Arbor, MI
- Average humidity in September: 80%
The months with the highest relative humidity are January and February (87%).
The months with the lowest relative humidity are March, April and October (78%).
Average rainfall in September
Spring Arbor, MI
- Average rainfall in September: 1.69"
The wettest month (with the highest rainfall) is May (3.5").
The driest month (with the least rainfall) is December (1.18").
Average rainfall days in September
Spring Arbor, MI
- Average rainfall days in September: 13.8 days
The month with the highest number of rainy days is May (19.5 days).
The month with the least rainy days is February (5.3 days).
Average snowfall in September
Spring Arbor, MI
- Average snowfall in September: 0"
The month with the highest snowfall is February (5.24").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Spring Arbor, MI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (13.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Spring Arbor, MI
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in September: 7h and 54min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 2h and 48min).
Average sunshine days in September
Spring Arbor, MI
- Average sunshine days in September: 14.2 days
The month with the most sunshine days is November (15.8 days).
The month with the least sunshine days is May (9.3 days).
Average UV index in September
Spring Arbor, 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
Spring Arbor, MI
- Average cloud cover in September: 38
The month with the most cloud cover is January (Cloud cover 72).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in September
Spring Arbor, MI
- Average visibility in September: 5mi
The months with the highest visibility are March, April, May, June, July, October, November and December (6mi).
The months with the lowest visibility are January, February, August and September (5mi).
