Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
With September's onset, the average high-temperature recedes from August's warm 79.9°F (26.6°C) to an agreeable 69.3°F (20.7°C). In Stephen, the average nighttime temperature during September is a cool 51.1°F (10.6°C).Humidity
In Stephen, Minnesota, the average relative humidity in September is 64%.Rainfall
In Stephen, in September, it is raining for 9.3 days, with typically 1.89" (48mm) of accumulated precipitation. Throughout the year, in Stephen, there are 101.5 rainfall days, and 18.23" (463mm) of precipitation is accumulated.Snowfall
In Stephen, snow does not fall in June through September.Daylight
In Stephen, the average length of the day in September is 12h and 34min.On the first day of the month, sunrise is at 6:46 am and sunset at 8:08 pm. On the last day of September, in Stephen, sunrise is at 7:26 am and sunset at 7:07 pm CDT.
Sunshine
In September, the average sunshine in Stephen is 8.6h.UV index
In Stephen, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: In September, the maximum UV index of 4 transforms into these recommendations:
Adopt protective measures - It is advised to guard against sun damage. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Frequently asked questions
What is the temperature in September in Stephen?
What is the average humidity in September in Stephen?
How many days does it rain in September in Stephen?
When it does not snow in Stephen?
Does it snow in Stephen in September?
How many hours of daylight does Stephen have in September?
When is the sunrise / sunset in September in Stephen?
How long on average sun shines in September in Stephen?
What is the UV index intensity in September in Stephen?
Average temperature in September
Stephen, MN
- Average high temperature in September: 69.3°F
The warmest month (with the highest average high temperature) is August (79.9°F).
The month with the lowest average high temperature is January (14°F).
- Average low temperature in September: 51.1°F
The month with the highest average low temperature is July (59.9°F).
The coldest month (with the lowest average low temperature) is January (-0.2°F).
Average pressure in September
Stephen, MN
- Average pressure in September: 29.96"Hg
The month with the highest atmospheric pressure is February (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in September
Stephen, MN
- Average wind speed in September: 9.8mph
The windiest month (with the highest average wind speed) is October (10.5mph).
The calmest months (with the lowest average wind speed) are July and August (8.1mph).
Average humidity in September
Stephen, MN
- Average humidity in September: 64%
The months with the highest relative humidity are January and February (92%).
The month with the lowest relative humidity is August (62%).
Average rainfall in September
Stephen, MN
- Average rainfall in September: 1.89"
The wettest month (with the highest rainfall) is June (3.15").
The driest months (with the least rainfall) are January and February (0.55").
Average rainfall days in September
Stephen, MN
- Average rainfall days in September: 9.3 days
The month with the highest number of rainy days is June (16.7 days).
The month with the least rainy days is January (1.6 days).
Average snowfall in September
Stephen, MN
- Average snowfall in September: 0"
The month with the highest snowfall is December (4.61").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Stephen, MN
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and December (14.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Stephen, MN
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 24min).
- Average sunshine in September: 8h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is January (Average sunshine: 2h and 42min).
Average sunshine days in September
Stephen, MN
- Average sunshine days in September: 19.2 days
The month with the most sunshine days is August (19.3 days).
The month with the least sunshine days is June (10.5 days).
Average UV index in September
Stephen, MN
- Average UV index in September: 4
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in September
Stephen, MN
- Average cloud cover in September: 31
The months with the most cloud cover are January and February (Cloud cover 70).
The month with the least cloud cover is August (Cloud cover 25).
Average visibility in September
Stephen, MN
- Average visibility in September: 6mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is January (4mi).
Stephen, Minnesota, USA
Weather forecast for your location
2. Allow the app to use your location
