September weather forecastWilmot, SD
September
Weather in September
September, the first month of the autumn in Wilmot, is still a pleasant month, with temperature in the range of an average low of 52.7°F (11.5°C) and an average high of 72.5°F (22.5°C).Temperature
The advent of September brings a slight shift in average high-temperature, moving from a moderately hot 80.8°F (27.1°C) in August to an agreeable 72.5°F (22.5°C). Throughout the nights in September, Wilmot experiences an average low-temperature of 52.7°F (11.5°C).Humidity
In Wilmot, the average relative humidity in September is 67%.Rainfall
In Wilmot, South Dakota, during September, the rain falls for 10 days and regularly aggregates up to 1.61" (41mm) of precipitation. In Wilmot, during the entire year, the rain falls for 115.2 days and collects up to 19.88" (505mm) of precipitation.Snowfall
June through September are months without snowfall in Wilmot, South Dakota.Daylight
In Wilmot, the average length of the day in September is 12h and 31min.On the first day of the month, sunrise is at 6:49 am and sunset at 8:04 pm. On the last day of September, in Wilmot, sunrise is at 7:25 am and sunset at 7:08 pm CDT.
Sunshine
In Wilmot, South Dakota, the average sunshine in September is 9h.UV index
In Wilmot, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for the average person.Note: A maximum daily UV index of 4 during September morphs into the following directions:
Be vigilant - Preventing sunburn is recommended. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Wilmot, SD
- Average high temperature in September: 72.5°F
The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (19.6°F).
- Average low temperature in September: 52.7°F
The month with the highest average low temperature is July (61.9°F).
The coldest month (with the lowest average low temperature) is January (6.1°F).
Average pressure in September
Wilmot, SD
- Average pressure in September: 29.97"Hg
The months with the highest atmospheric pressure are January and February (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).
Average wind speed in September
Wilmot, SD
- Average wind speed in September: 9.3mph
The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest month (with the lowest average wind speed) is July (8mph).
Average humidity in September
Wilmot, SD
- Average humidity in September: 67%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is October (66%).
Average rainfall in September
Wilmot, SD
- Average rainfall in September: 1.61"
The wettest month (with the highest rainfall) is June (3.11").
The driest months (with the least rainfall) are January and February (0.63").
Average rainfall days in September
Wilmot, SD
- Average rainfall days in September: 10 days
The month with the highest number of rainy days is June (17.8 days).
The month with the least rainy days is February (2.3 days).
Average snowfall in September
Wilmot, SD
- Average snowfall in September: 0"
The month with the highest snowfall is December (4.49").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Wilmot, SD
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (13.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Wilmot, SD
- 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: 9h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in September
Wilmot, SD
- Average sunshine days in September: 18 days
The month with the most sunshine days is October (18.5 days).
The month with the least sunshine days is June (9.6 days).
Average UV index in September
Wilmot, SD
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in September
Wilmot, SD
- Average cloud cover in September: 28
The month with the most cloud cover is January (Cloud cover 58).
The months with the least cloud cover are July and August (Cloud cover 25).
Average visibility in September
Wilmot, SD
- 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).
