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, Whitelaw's climate undergoes a slight change as the average high-temperature moves from a warm 76.5°F (24.7°C) in August to an agreeable 69.3°F (20.7°C). An average temperature of 53.1°F (11.7°C) marks the nights in September.Humidity
In September, the average relative humidity is 80%.Rainfall
In Whitelaw, during September, the rain falls for 12.5 days and regularly aggregates up to 1.73" (44mm) of precipitation. Throughout the year, in Whitelaw, there are 141.9 rainfall days, and 25.83" (656mm) of precipitation is accumulated.Snowfall
In Whitelaw, snow does not fall in June through September.Daylight
In Whitelaw, the average length of the day in September is 12h and 30min.On the first day of September, sunrise is at 6:15 am and sunset at 7:26 pm. On the last day of the month, sunrise is at 6:48 am and sunset at 6:33 pm CDT.
Sunshine
In Whitelaw, the average sunshine in September is 8.7h.UV index
In September, the average daily maximum UV index is 3. A UV Index reading of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for average individuals.Note: In September, a regular UV index of 3 translates into these guidelines:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. The Sun's radiation is especially intense around midday; try to stay in shade during this period. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature?
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 Whitelaw?
What time are sunrise and sunset in September?
How long on average sun shines in September?
What is the UV index intensity in September?
Average temperature in September
Whitelaw, WI
- Average high temperature in September: 69.3°F
The warmest month (with the highest average high temperature) is July (77.5°F).
The month with the lowest average high temperature is January (23.5°F).
- Average low temperature in September: 53.1°F
The month with the highest average low temperature is July (61.2°F).
The coldest month (with the lowest average low temperature) is January (13.5°F).
Average pressure in September
Whitelaw, WI
- Average pressure in September: 30.02"Hg
The month with the highest atmospheric pressure is March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in September
Whitelaw, WI
- Average wind speed in September: 8.3mph
The windiest month (with the highest average wind speed) is January (10.8mph).
The calmest months (with the lowest average wind speed) are July and August (7.3mph).
Average humidity in September
Whitelaw, WI
- Average humidity in September: 80%
The months with the highest relative humidity are January and February (87%).
The month with the lowest relative humidity is April (76%).
Average rainfall in September
Whitelaw, WI
- Average rainfall in September: 1.73"
The wettest month (with the highest rainfall) is May (3.23").
The driest month (with the least rainfall) is February (1.34").
Average rainfall days in September
Whitelaw, WI
- Average rainfall days in September: 12.5 days
The month with the highest number of rainy days is July (16.7 days).
The month with the least rainy days is February (4.7 days).
Average snowfall in September
Whitelaw, WI
- Average snowfall in September: 0"
The month with the highest snowfall is February (5.12").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Whitelaw, WI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (15.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Whitelaw, WI
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 24min).
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 18min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).
Average sunshine days in September
Whitelaw, WI
- Average sunshine days in September: 16 days
The month with the most sunshine days is November (16.7 days).
The month with the least sunshine days is July (11.1 days).
Average UV index in September
Whitelaw, WI
- Average UV index in September: 3
The months with the highest UV index are 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
Whitelaw, WI
- Average cloud cover in September: 32
The month with the most cloud cover is January (Cloud cover 64).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility in September
Whitelaw, WI
- Average visibility in September: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).
Whitelaw, Wisconsin, USA
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