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 indicates a minor shift in the average high-temperature, from August's moderately hot 78.6°F (25.9°C) to an agreeable 72.3°F (22.4°C). Platteville anticipates an average minimum temperature of 52.7°F (11.5°C) in the month of September.Humidity
In September, the average relative humidity is 80%.Rainfall
In September, the rain falls for 12 days. Throughout September, 2.68" (68mm) of precipitation is accumulated. In Platteville, during the entire year, the rain falls for 140.6 days and collects up to 28.66" (728mm) of precipitation.Snowfall
In Platteville, snow does not fall in May through September.Daylight
In Platteville, the average length of the day in September is 12h and 29min.On the first day of September, sunrise is at 6:27 am and sunset at 7:35 pm. On the last day of the month, sunrise is at 6:58 am and sunset at 6:44 pm CDT.
Sunshine
In September, the average sunshine is 8.9h.UV index
The average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: In September, the maximum UV index of 4 suggests these recommendations:
Guard yourself - An obligation to protect skin and eyes from harm exists. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Platteville in September?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
Does it snow in September?
What is the average length of the day in September in Platteville?
When are sunrise and sunset in September?
How many hours of sunshine does Platteville have in September?
What is the UV index intensity in September?
Average temperature in September
Platteville, WI
- Average high temperature in September: 72.3°F
The warmest month (with the highest average high temperature) is July (79.5°F).
The month with the lowest average high temperature is January (24.1°F).
- Average low temperature in September: 52.7°F
The month with the highest average low temperature is July (62.6°F).
The coldest month (with the lowest average low temperature) is January (11.7°F).
Average pressure in September
Platteville, WI
- Average pressure in September: 30.02"Hg
The months with the highest atmospheric pressure are January and February (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in September
Platteville, WI
- Average wind speed in September: 7.6mph
The windiest month (with the highest average wind speed) is April (10.1mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).
Average humidity in September
Platteville, WI
- Average humidity in September: 80%
The months with the highest relative humidity are January and February (88%).
The months with the lowest relative humidity are April and October (77%).
Average rainfall in September
Platteville, WI
- Average rainfall in September: 2.68"
The wettest month (with the highest rainfall) is June (4.02").
The driest month (with the least rainfall) is February (1.14").
Average rainfall days in September
Platteville, WI
- Average rainfall days in September: 12 days
The month with the highest number of rainy days is May (18.8 days).
The month with the least rainy days is February (4 days).
Average snowfall in September
Platteville, WI
- Average snowfall in September: 0"
The month with the highest snowfall is January (4.88").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Platteville, WI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (13.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Platteville, WI
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in September: 8h and 5min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in September
Platteville, WI
- Average sunshine days in September: 16.1 days
The month with the most sunshine days is December (17.2 days).
The month with the least sunshine days is June (9.7 days).
Average UV index in September
Platteville, WI
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover in September
Platteville, WI
- Average cloud cover in September: 33
The month with the most cloud cover is January (Cloud cover 64).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in September
Platteville, WI
- Average visibility in September: 6mi
The months with the highest visibility are March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, February, July and August (5mi).
Platteville, Wisconsin, USA
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