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
September brings a minor decrease, with the average high-temperature reducing from a moderately hot 77.2°F (25.1°C) in August to an enjoyable 67.3°F (19.6°C). An average nighttime temperature of 48°F (8.9°C) is observed in Wilton during September.Humidity
In Wilton, the average relative humidity in September is 73%.Rainfall
In Wilton, in September, during 11.2 rainfall days, 1.73" (44mm) of precipitation is typically accumulated. Throughout the year, there are 105 rainfall days, and 19.72" (501mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall in Wilton.Daylight
The average length of the day in September is 12h and 33min.On the first day of September in Wilton, sunrise is at 6:39 am and sunset at 7:59 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 7:00 pm CDT.
Sunshine
In Wilton, the average sunshine in September is 8.1h.UV index
In Wilton, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for average individuals.Note: The daily maximum UV index of 4 in September interprets into the following advice:
Exercise prevention - Protecting skin and eyes from harm is required. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September?
What is the average humidity in September?
How much does it rain in Wilton in September?
When it does not snow in Wilton?
Does it snow in September?
What is the average length of the day in September in Wilton?
What time are sunrise and sunset in September?
How long on average sun shines in September?
What is the UV index reading in September?
Average temperature in September
Wilton, MN
- Average high temperature in September: 67.3°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (16.2°F).
- Average low temperature in September: 48°F
The month with the highest average low temperature is July (57.6°F).
The coldest month (with the lowest average low temperature) is January (1.6°F).
Average pressure in September
Wilton, MN
- Average pressure in September: 29.97"Hg
The month with the highest atmospheric pressure is February (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in September
Wilton, MN
- Average wind speed in September: 7.8mph
The windiest month (with the highest average wind speed) is October (8.2mph).
The calmest month (with the lowest average wind speed) is August (6.9mph).
Average humidity in September
Wilton, MN
- Average humidity in September: 73%
The months with the highest relative humidity are January and February (93%).
The month with the lowest relative humidity is May (70%).
Average rainfall in September
Wilton, MN
- Average rainfall in September: 1.73"
The wettest month (with the highest rainfall) is June (2.91").
The driest months (with the least rainfall) are January and February (0.75").
Average rainfall days in September
Wilton, MN
- Average rainfall days in September: 11.2 days
The month with the highest number of rainy days is June (16.5 days).
The month with the least rainy days is February (1.3 days).
Average snowfall in September
Wilton, MN
- Average snowfall in September: 0"
The month with the highest snowfall is December (7.28").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Wilton, MN
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is January (18.7 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Wilton, MN
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in September: 8h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 2h and 0min).
Average sunshine days in September
Wilton, MN
- Average sunshine days in September: 17.1 days
The month with the most sunshine days is August (17.2 days).
The month with the least sunshine days is June (11.7 days).
Average UV index in September
Wilton, 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
Wilton, MN
- Average cloud cover in September: 40
The month with the most cloud cover is January (Cloud cover 80).
The months with the least cloud cover are July and August (Cloud cover 34).
Average visibility in September
Wilton, MN
- Average visibility in September: 6mi
The months with the highest visibility are May, June, July, August and September (6mi).
The months with the lowest visibility are January, February, March and December (4mi).
Wilton, Minnesota, USA
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