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
With the onset of September, the average high-temperature subtly recedes from August's moderately hot 77.2°F (25.1°C) to a pleasant 69.6°F (20.9°C). During September, the temperature in Plainfield tends to dip to an average of 51.6°F (10.9°C) at night.Humidity
In Plainfield, the average relative humidity in September is 80%.Rainfall
In September, in Plainfield, the rain falls for 12 days. Throughout September, 2.01" (51mm) of precipitation is accumulated. Throughout the year, in Plainfield, there are 131 rainfall days, and 26.42" (671mm) of precipitation is accumulated.Snowfall
In Plainfield, snow does not fall in June through September.Daylight
In September, the average length of the day in Plainfield, Wisconsin, is 12h and 30min.On the first day of September, sunrise is at 6:21 am and sunset at 7:33 pm. On the last day of the month, sunrise is at 6:55 am and sunset at 6:39 pm CDT.
Sunshine
The average sunshine in September in Plainfield is 8.6h.UV index
In Plainfield, the average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the ordinary person.Note: In September, a regular UV index of 3 translates into these guidelines:
Act with care - The need to guard against sun damage is communicated. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. During bright days, sunglasses that offer UVA and UVB defense are recommended.
Frequently asked questions
What are the temperatures in Plainfield in September?
What is the average humidity in September in Plainfield?
How many days does it rain in September in Plainfield?
When it does not snow in Plainfield?
Does it snow in Plainfield in September?
What is the average length of the day in September in Plainfield?
When are sunrise and sunset in September in Plainfield?
How long on average sun shines in September in Plainfield?
How high is the UV index in September in Plainfield?
Average temperature in September
Plainfield, WI
- Average high temperature in September: 69.6°F
The warmest month (with the highest average high temperature) is July (78.3°F).
The month with the lowest average high temperature is January (21.7°F).
- Average low temperature in September: 51.6°F
The month with the highest average low temperature is July (60.6°F).
The coldest month (with the lowest average low temperature) is January (10.4°F).
Average pressure in September
Plainfield, WI
- Average pressure in September: 30.02"Hg
The months with the highest atmospheric pressure are January and February (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in September
Plainfield, WI
- Average wind speed in September: 7.7mph
The windiest month (with the highest average wind speed) is April (10mph).
The calmest month (with the lowest average wind speed) is August (6.9mph).
Average humidity in September
Plainfield, WI
- Average humidity in September: 80%
The months with the highest relative humidity are January and February (89%).
The month with the lowest relative humidity is April (75%).
Average rainfall in September
Plainfield, WI
- Average rainfall in September: 2.01"
The wettest month (with the highest rainfall) is May (3.43").
The driest months (with the least rainfall) are January and February (1.22").
Average rainfall days in September
Plainfield, WI
- Average rainfall days in September: 12 days
The month with the highest number of rainy days is May (16.4 days).
The month with the least rainy days is February (4 days).
Average snowfall in September
Plainfield, WI
- Average snowfall in September: 0"
The month with the highest snowfall is January (5.87").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Plainfield, WI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (13.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Plainfield, 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 4min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).
Average sunshine days in September
Plainfield, WI
- Average sunshine days in September: 16.1 days
The month with the most sunshine days is November (16.6 days).
The months with the least sunshine days are April and June (11.9 days).
Average UV index in September
Plainfield, WI
- Average UV index in September: 3
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover in September
Plainfield, WI
- Average cloud cover in September: 35
The month with the most cloud cover is January (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in September
Plainfield, WI
- Average visibility in September: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (5mi).
Plainfield, Wisconsin, USA
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