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 signifies a minor drop in average high-temperature, transitioning from a moderately hot 77.4°F (25.2°C) in August to a pleasant 71.1°F (21.7°C). The mean low-temperature during September nights in Marcellon is a cool 51.3°F (10.7°C).Humidity
In September, the average relative humidity is 80%.Rainfall
In Marcellon, during September, the rain falls for 12.1 days and regularly aggregates up to 2.6" (66mm) of precipitation. In Marcellon, during the entire year, the rain falls for 134.5 days and collects up to 26.97" (685mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
In September, the average length of the day in Marcellon, Wisconsin, is 12h and 29min.On the first day of the month, sunrise is at 6:21 am and sunset at 7:31 pm. On the last day of September, in Marcellon, sunrise is at 6:54 am and sunset at 6:39 pm CDT.
Sunshine
In September, the average sunshine in Marcellon is 8.7h.UV index
In September, the average daily maximum UV index in Marcellon is 3. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for average individuals.Note: During September, 3 as the daily maximum UV index converts into the following advice:
Act with care - Obligation to protect against skin and eye damage is highlighted. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Marcellon in September?
What is the average humidity in September in Marcellon?
How much does it rain in Marcellon in September?
When it does not snow in Marcellon?
Does it snow in Marcellon in September?
What is the average length of the day in September in Marcellon?
When are sunrise and sunset in September in Marcellon?
How long on average sun shines in September in Marcellon?
What is the UV index intensity in September in Marcellon?
Average temperature in September
Marcellon, WI
- Average high temperature in September: 71.1°F
The warmest month (with the highest average high temperature) is July (78.6°F).
The month with the lowest average high temperature is January (22.6°F).
- Average low temperature in September: 51.3°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 (10.6°F).
Average pressure in September
Marcellon, WI
- Average pressure in September: 30.03"Hg
The months with the highest atmospheric pressure are January and February (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in September
Marcellon, WI
- Average wind speed in September: 7.6mph
The windiest month (with the highest average wind speed) is April (9.9mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).
Average humidity in September
Marcellon, WI
- Average humidity in September: 80%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is April (76%).
Average rainfall in September
Marcellon, WI
- Average rainfall in September: 2.6"
The wettest month (with the highest rainfall) is June (3.54").
The driest month (with the least rainfall) is February (1.1").
Average rainfall days in September
Marcellon, WI
- Average rainfall days in September: 12.1 days
The month with the highest number of rainy days is June (17.2 days).
The month with the least rainy days is February (4.2 days).
Average snowfall in September
Marcellon, WI
- Average snowfall in September: 0"
The month with the highest snowfall is January (5.16").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Marcellon, WI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (14.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Marcellon, 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 month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).
Average sunshine days in September
Marcellon, WI
- Average sunshine days in September: 16.5 days
The month with the most sunshine days is September (16.5 days).
The month with the least sunshine days is June (10.8 days).
Average UV index in September
Marcellon, WI
- Average UV index in September: 3
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover in September
Marcellon, WI
- Average cloud cover in September: 35
The month with the most cloud cover is January (Cloud cover 66).
The months with the least cloud cover are July and August (Cloud cover 34).
Average visibility in September
Marcellon, WI
- Average visibility in September: 5mi
The months with the highest visibility are March, April, May, June, October and November (6mi).
The months with the lowest visibility are January, February, July, August, September and December (5mi).
Marcellon, Wisconsin, USA
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