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 warm 78.1°F (25.6°C) to an agreeable 71.2°F (21.8°C). West Salem, in September, observes a steady average low-temperature of 50.9°F (10.5°C).Humidity
The average relative humidity in September is 80%.Rainfall
In West Salem, during September, the rain falls for 12.2 days and regularly aggregates up to 2.36" (60mm) of precipitation. In West Salem, during the entire year, the rain falls for 133.6 days and collects up to 27.36" (695mm) of precipitation.Snowfall
In West Salem, snow does not fall in June through September.Daylight
In September, the average length of the day is 12h and 29min.On the first day of September, sunrise is at 6:28 am and sunset at 7:39 pm. On the last day of the month, sunrise is at 7:01 am and sunset at 6:46 pm CDT.
Sunshine
The average sunshine in September is 8.6h.UV index
The average daily maximum UV index in September in West Salem is 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for average individuals.Note: In September, the maximum UV index of 3 suggests this advice:
Guard yourself - Precautionary measures against sun damage are advocated. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September?
What is the average humidity in September?
How much does it rain in September?
When it does not snow in West Salem?
Does it snow in September?
What is the average length of the day in September?
When is the sunrise / sunset in September in West Salem?
How long on average sun shines in September?
How high is the UV index in September?
Average temperature in September
West Salem, WI
- Average high temperature in September: 71.2°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 (21.6°F).
- Average low temperature in September: 50.9°F
The month with the highest average low temperature is July (60.8°F).
The coldest month (with the lowest average low temperature) is January (8.2°F).
Average pressure in September
West Salem, WI
- Average pressure in September: 30.02"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in September
West Salem, WI
- Average wind speed in September: 7.1mph
The windiest month (with the highest average wind speed) is April (9.3mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).
Average humidity in September
West Salem, WI
- Average humidity in September: 80%
The month with the highest relative humidity is January (90%).
The months with the lowest relative humidity are April and October (77%).
Average rainfall in September
West Salem, WI
- Average rainfall in September: 2.36"
The wettest month (with the highest rainfall) is June (4.61").
The driest month (with the least rainfall) is January (1.02").
Average rainfall days in September
West Salem, WI
- Average rainfall days in September: 12.2 days
The month with the highest number of rainy days is June (18.2 days).
The month with the least rainy days is February (3.8 days).
Average snowfall in September
West Salem, WI
- Average snowfall in September: 0"
The month with the highest snowfall is February (5.47").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
West Salem, WI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (14.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
West Salem, 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: 8h and 4min
The months with the most sunshine are July and August (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 6min).
Average sunshine days in September
West Salem, WI
- Average sunshine days in September: 15.5 days
The months with the most sunshine days are October and November (16.5 days).
The month with the least sunshine days is June (9.4 days).
Average UV index in September
West Salem, 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, February, November and December (UV index 1).
Average cloud cover in September
West Salem, WI
- Average cloud cover in September: 36
The month with the most cloud cover is January (Cloud cover 67).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in September
West Salem, WI
- Average visibility in September: 5mi
The months with the highest visibility are April, May, June, October and November (6mi).
The month with the lowest visibility is January (4mi).
West Salem, Wisconsin, USA
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