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's arrival subtly correlates with a reduction in the average high-temperature, down from a warm 75.7°F (24.3°C) in August to an agreeable 68.9°F (20.5°C). Nighttime temperatures consistently average a fresh 54.7°F (12.6°C) during September.Humidity
The average relative humidity in September is 80%.Rainfall
In September, the rain falls for 10.3 days. Throughout September, 1.18" (30mm) of precipitation is accumulated. Throughout the year, there are 111.2 rainfall days, and 13.62" (346mm) of precipitation is accumulated.Snowfall
May through September are months without snowfall.Daylight
The average length of the day in September is 12h and 29min.On the first day of September, sunrise is at 6:16 am and sunset at 7:26 pm. On the last day of the month, sunrise is at 6:49 am and sunset at 6:34 pm CDT.
Sunshine
In September, the average sunshine is 9h.UV index
In Random Lake, the average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for the average person.Note: The UV index of 3 during September leads to these advisories:
Preventative actions are necessary - Recommendations to ward off sunburn are given. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. 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 much 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?
What time are sunrise and sunset in September?
How many hours of sunshine does Random Lake have in September?
What is the UV index reading in September?
Average temperature in September
Random Lake, WI
- Average high temperature in September: 68.9°F
The warmest month (with the highest average high temperature) is July (76.1°F).
The month with the lowest average high temperature is January (25°F).
- Average low temperature in September: 54.7°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 (14.9°F).
Average pressure in September
Random Lake, WI
- Average pressure in September: 30.03"Hg
The months with the highest atmospheric pressure are January, February and March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in September
Random Lake, WI
- Average wind speed in September: 8.7mph
The windiest month (with the highest average wind speed) is January (11.8mph).
The calmest month (with the lowest average wind speed) is July (7.5mph).
Average humidity in September
Random Lake, WI
- Average humidity in September: 80%
The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is October (77%).
Average rainfall in September
Random Lake, WI
- Average rainfall in September: 1.18"
The wettest month (with the highest rainfall) is July (1.81").
The driest month (with the least rainfall) is December (0.51").
Average rainfall days in September
Random Lake, WI
- Average rainfall days in September: 10.3 days
The month with the highest number of rainy days is July (13.4 days).
The month with the least rainy days is February (3.2 days).
Average snowfall in September
Random Lake, WI
- Average snowfall in September: 0"
The month with the highest snowfall is January (1.85").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Random Lake, WI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (12.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Random Lake, 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: 9h and 0min).
- Average sunshine in September: 9h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in September
Random Lake, WI
- Average sunshine days in September: 17.5 days
The months with the most sunshine days are November and December (18.5 days).
The month with the least sunshine days is April (14.7 days).
Average UV index in September
Random Lake, 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
Random Lake, WI
- Average cloud cover in September: 31
The month with the most cloud cover is January (Cloud cover 63).
The months with the least cloud cover are July and August (Cloud cover 29).
Average visibility in September
Random Lake, WI
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Random Lake, Wisconsin, USA
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