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
De Soto's transition into September involves a gentle shift in temperature, receding from a moderately hot 81.1°F (27.3°C) in August to a still warm 75.4°F (24.1°C). The nighttime temperature, during September, averages of 55.9°F (13.3°C).Humidity
The average relative humidity in September in De Soto is 76%.Rainfall
In De Soto, in September, it is raining for 10.5 days, with typically 1.73" (44mm) of accumulated precipitation. Throughout the year, in De Soto, there are 112.7 rainfall days, and 16.06" (408mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall in De Soto.Daylight
The average length of the day in September is 12h and 28min.On the first day of September in De Soto, sunrise is at 6:42 am and sunset at 7:48 pm. On the last day of the month, sunrise is at 7:12 am and sunset at 6:58 pm CDT.
Sunshine
The average sunshine in September in De Soto is 9.3h.UV index
The average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum daily UV index of 4 during September translates into the following directions:
Undertake precautions - Obligation exists to protect against skin and eye damage. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Frequently asked questions
What is the average September temperature in De Soto?
What is the average humidity in September in De Soto?
How many days does it rain in September in De Soto?
When it does not snow in De Soto?
Does it snow in De Soto in September?
What is the average length of the day in September in De Soto?
When is the sunrise / sunset in September in De Soto?
How long on average sun shines in September in De Soto?
How high is the UV index in September in De Soto?
Average temperature in September
De Soto, IA
- Average high temperature in September: 75.4°F
The warmest month (with the highest average high temperature) is July (82.8°F).
The month with the lowest average high temperature is January (28°F).
- Average low temperature in September: 55.9°F
The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (14.4°F).
Average pressure in September
De Soto, IA
- Average pressure in September: 30.01"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in September
De Soto, IA
- Average wind speed in September: 8.1mph
The windiest months (with the highest average wind speed) are January and April (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).
Average humidity in September
De Soto, IA
- Average humidity in September: 76%
The months with the highest relative humidity are January and February (82%).
The month with the lowest relative humidity is October (70%).
Average rainfall in September
De Soto, IA
- Average rainfall in September: 1.73"
The wettest month (with the highest rainfall) is June (2.68").
The driest month (with the least rainfall) is January (0.47").
Average rainfall days in September
De Soto, IA
- Average rainfall days in September: 10.5 days
The month with the highest number of rainy days is June (15.7 days).
The month with the least rainy days is February (2.8 days).
Average snowfall in September
De Soto, IA
- Average snowfall in September: 0"
The month with the highest snowfall is February (2.09").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
De Soto, IA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (8.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
De Soto, IA
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in September: 9h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).
Average sunshine days in September
De Soto, IA
- Average sunshine days in September: 17.5 days
The month with the most sunshine days is November (22.1 days).
The month with the least sunshine days is June (11.9 days).
Average UV index in September
De Soto, IA
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in September
De Soto, IA
- Average cloud cover in September: 30
The month with the most cloud cover is January (Cloud cover 53).
The month with the least cloud cover is July (Cloud cover 29).
Average visibility in September
De Soto, IA
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, September, October, November and December (6mi).
The month with the lowest visibility is August (5mi).
De Soto, Iowa, USA
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