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
The transition into September is accompanied by a slight temperature decrease, with the average high-temperature shifting from a moderately hot 77°F (25°C) in August to an agreeable 70°F (21.1°C). Downsville, in September, observes a steady average low-temperature of 50.7°F (10.4°C).Humidity
The average relative humidity in September in Downsville is 79%.Rainfall
In Downsville, in September, it is raining for 13.6 days, with typically 2.28" (58mm) of accumulated precipitation. Throughout the year, in Downsville, Wisconsin, there are 139.8 rainfall days, and 27.52" (699mm) of precipitation is accumulated.Snowfall
In Downsville, snow does not fall in June through September.Daylight
In Downsville, the average length of the day in September is 12h and 31min.On the first day of the month, sunrise is at 6:30 am and sunset at 7:43 pm. On the last day of September, sunrise is at 7:05 am and sunset at 6:49 pm CDT.
Sunshine
In Downsville, the average sunshine in September is 8.5h.UV index
The average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: A typical high UV index of 4 in September suggests the following recommendations:
Put precautions into practice - Protective measures against sun-induced damage are advised. It's recommended to limit sun exposure when its radiation is at its peak during midday. Boost your sun resistance with garments that are densely woven yet spacious.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Downsville in September?
What is the average humidity in September in Downsville?
How much does it rain in Downsville in September?
When it does not snow in Downsville?
Does it snow in Downsville in September?
What is the average length of the day in September in Downsville?
When is the sunrise / sunset in September in Downsville?
How long on average sun shines in September in Downsville?
What is the UV index reading in September in Downsville?
Average temperature in September
Downsville, WI
- Average high temperature in September: 70°F
The warmest month (with the highest average high temperature) is July (78.8°F).
The month with the lowest average high temperature is January (19°F).
- Average low temperature in September: 50.7°F
The month with the highest average low temperature is July (60.1°F).
The coldest month (with the lowest average low temperature) is January (5.9°F).
Average pressure in September
Downsville, WI
- Average pressure in September: 30.01"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in September
Downsville, WI
- Average wind speed in September: 7.4mph
The windiest month (with the highest average wind speed) is April (9.1mph).
The calmest month (with the lowest average wind speed) is July (6.5mph).
Average humidity in September
Downsville, WI
- Average humidity in September: 79%
The months with the highest relative humidity are January and February (91%).
The month with the lowest relative humidity is April (76%).
Average rainfall in September
Downsville, WI
- Average rainfall in September: 2.28"
The wettest month (with the highest rainfall) is June (4.65").
The driest month (with the least rainfall) is January (0.83").
Average rainfall days in September
Downsville, WI
- Average rainfall days in September: 13.6 days
The month with the highest number of rainy days is June (19.3 days).
The month with the least rainy days is January (3 days).
Average snowfall in September
Downsville, WI
- Average snowfall in September: 0"
The month with the highest snowfall is February (7.2").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Downsville, WI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (16 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Downsville, WI
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in September: 8h and 3min
The month with the most sunshine is July (Average sunshine: 9h and 42min).
The months with the least sunshine are January and February (Average sunshine: 3h and 12min).
Average sunshine days in September
Downsville, WI
- Average sunshine days in September: 14.1 days
The month with the most sunshine days is November (15.9 days).
The month with the least sunshine days is June (8.2 days).
Average UV index in September
Downsville, WI
- 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
Downsville, WI
- Average cloud cover in September: 37
The month with the most cloud cover is January (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in September
Downsville, WI
- Average visibility in September: 5mi
The months with the highest visibility are April, May, June, October and November (6mi).
The months with the lowest visibility are January and February (4mi).
Downsville, Wisconsin, USA
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