September weather forecastStephenson, MI
September
Weather in September
September, the first month of the autumn in Stephenson, is also an agreeable month, with temperature in the range of an average high of 68°F (20°C) and an average low of 49.5°F (9.7°C).Temperature
September implies a soft temperature shift, with average high-temperatures reducing from August's warm 76.1°F (24.5°C) to a pleasant 68°F (20°C). An average low-temperature of 49.5°F (9.7°C) is noted during the nights in September.Humidity
In September, the average relative humidity in Stephenson is 80%.Rainfall
In Stephenson, Michigan, in September, during 11.7 rainfall days, 1.81" (46mm) of precipitation is typically accumulated. In Stephenson, during the entire year, the rain falls for 133.3 days and collects up to 22.87" (581mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
The average length of the day in September is 12h and 31min.On the first day of the month, sunrise is at 6:12 am and sunset at 7:27 pm. On the last day of September, sunrise is at 6:48 am and sunset at 6:32 pm CDT.
Sunshine
In September, the average sunshine in Stephenson is 8h.UV index
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 average individuals.Note: The maximum daily UV index of 3 during September translates into the following directions:
Adopt protective measures - Suggestions to resist sunburn are offered. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Stephenson, MI
- Average high temperature in September: 68°F
The warmest month (with the highest average high temperature) is July (78.1°F).
The month with the lowest average high temperature is January (21.6°F).
- Average low temperature in September: 49.5°F
The month with the highest average low temperature is July (57.7°F).
The coldest month (with the lowest average low temperature) is January (10.8°F).
Average pressure in September
Stephenson, 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
Stephenson, MI
- Average wind speed in September: 7mph
The windiest month (with the highest average wind speed) is April (8.5mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).
Average humidity in September
Stephenson, MI
- Average humidity in September: 80%
The months with the highest relative humidity are January and February (89%).
The month with the lowest relative humidity is May (73%).
Average rainfall in September
Stephenson, MI
- Average rainfall in September: 1.81"
The wettest months (with the highest rainfall) are June and July (2.64").
The driest month (with the least rainfall) is January (1.1").
Average rainfall days in September
Stephenson, MI
- Average rainfall days in September: 11.7 days
The month with the highest number of rainy days is May (15.9 days).
The month with the least rainy days is February (4.3 days).
Average snowfall in September
Stephenson, MI
- Average snowfall in September: 0"
The month with the highest snowfall is February (8.11").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Stephenson, MI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (19.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Stephenson, MI
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in September: 8h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is February (Average sunshine: 2h and 54min).
Average sunshine days in September
Stephenson, MI
- Average sunshine days in September: 15.7 days
The month with the most sunshine days is September (15.7 days).
The month with the least sunshine days is February (10.4 days).
Average UV index in September
Stephenson, 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 and March (UV index 1).
Average cloud cover in September
Stephenson, MI
- Average cloud cover in September: 40
The month with the most cloud cover is February (Cloud cover 68).
The month with the least cloud cover is July (Cloud cover 34).
Average visibility in September
Stephenson, MI
- Average visibility in September: 5mi
The months with the highest visibility are May, June, October and November (6mi).
The months with the lowest visibility are January, February, March, April, July, August, September and December (5mi).
