September weather forecastSpruce, MI
September
Weather in September
The first month of the autumn, September, is still a refreshing month in Spruce, Michigan, with an average temperature ranging between min 54.3°F (12.4°C) and max 67.1°F (19.5°C).Temperature
September ushers in a minor alteration in Spruce's climate, with the average high-temperature moving from August's warm 73.9°F (23.3°C) to an enjoyable 67.1°F (19.5°C). In September, Spruce's temperature tends to fall to an average low of 54.3°F (12.4°C) during the night.Humidity
In Spruce, the average relative humidity in September is 77%.Rainfall
In September, the rain falls for 11.3 days. Throughout September, 0.98" (25mm) of precipitation is accumulated. In Spruce, Michigan, during the entire year, the rain falls for 119.4 days and collects up to 13.9" (353mm) of precipitation.Snowfall
In Spruce, Michigan, snow does not fall in June through September.Daylight
The average length of the day in September is 12h and 31min.On the first day of the month, sunrise is at 6:57 am and sunset at 8:10 pm. On the last day of September, sunrise is at 7:31 am and sunset at 7:15 pm EDT.
Sunshine
The average sunshine in September is 8h.UV index
In September, the average daily maximum UV index in Spruce is 3. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for average individuals.Note: In September, a regular UV index of 3 translates into these guidelines:
Guard yourself - An obligation to protect skin and eyes from harm exists. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Spruce, MI
- Average high temperature in September: 67.1°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 (25.9°F).
- Average low temperature in September: 54.3°F
The month with the highest average low temperature is August (60.3°F).
The coldest months (with the lowest average low temperature) are January and February (18°F).
Average pressure in September
Spruce, MI
- Average pressure in September: 30.02"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
Spruce, MI
- Average wind speed in September: 8.7mph
The windiest months (with the highest average wind speed) are January and December (11.1mph).
The calmest month (with the lowest average wind speed) is July (7.5mph).
Average humidity in September
Spruce, MI
- Average humidity in September: 77%
The months with the highest relative humidity are January and February (86%).
The month with the lowest relative humidity is May (73%).
Average rainfall in September
Spruce, MI
- Average rainfall in September: 0.98"
The wettest month (with the highest rainfall) is May (1.61").
The driest month (with the least rainfall) is February (0.71").
Average rainfall days in September
Spruce, MI
- Average rainfall days in September: 11.3 days
The month with the highest number of rainy days is October (14.3 days).
The month with the least rainy days is February (4.4 days).
Average snowfall in September
Spruce, MI
- Average snowfall in September: 0"
The month with the highest snowfall is January (3.58").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Spruce, MI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (20.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Spruce, MI
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in September: 8h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 1h and 48min).
Average sunshine days in September
Spruce, MI
- Average sunshine days in September: 15.5 days
The month with the most sunshine days is May (17.8 days).
The month with the least sunshine days is January (8.4 days).
Average UV index in September
Spruce, 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, November and December (UV index 1).
Average cloud cover in September
Spruce, MI
- Average cloud cover in September: 35
The month with the most cloud cover is January (Cloud cover 80).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility in September
Spruce, MI
- Average visibility in September: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).





