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
A modest decline in the average high-temperature is seen during September, decreasing from a warm 77.7°F (25.4°C) in August to a pleasant 70°F (21.1°C). Gresham's average low-temperature for the month of September records at a cool 50.7°F (10.4°C).Humidity
In September, the average relative humidity in Gresham is 79%.Rainfall
In Gresham, during September, the rain falls for 11.7 days and regularly aggregates up to 1.61" (41mm) of precipitation. In Gresham, during the entire year, the rain falls for 126.9 days and collects up to 23.03" (585mm) of precipitation.Snowfall
In Gresham, snow does not fall in June through September.Daylight
The average length of the day in September in Gresham is 12h and 31min.On the first day of the month, sunrise is at 6:18 am and sunset at 7:31 pm. On the last day of September, sunrise is at 6:52 am and sunset at 6:36 pm CDT.
Sunshine
The average sunshine in September in Gresham is 8.4h.UV index
The average daily maximum UV index in September in Gresham is 3. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In September, a regular UV index of 3 translates into these guidelines:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.
Frequently asked questions
What is the average September temperature in Gresham?
What is the average humidity in September in Gresham?
How much does it rain in Gresham in September?
When it does not snow in Gresham?
Does it snow in Gresham in September?
What is the average length of the day in September in Gresham?
What time are sunrise and sunset in September in Gresham?
How long on average sun shines in September in Gresham?
What is the UV index intensity in September in Gresham?
Average temperature in September
Gresham, WI
- Average high temperature in September: 70°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (22.3°F).
- Average low temperature in September: 50.7°F
The month with the highest average low temperature is July (59°F).
The coldest month (with the lowest average low temperature) is January (11.5°F).
Average pressure in September
Gresham, WI
- Average pressure in September: 30.02"Hg
The months with the highest atmospheric pressure are February and March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in September
Gresham, WI
- Average wind speed in September: 7.3mph
The windiest month (with the highest average wind speed) is April (9.1mph).
The calmest month (with the lowest average wind speed) is August (6.7mph).
Average humidity in September
Gresham, WI
- Average humidity in September: 79%
The months with the highest relative humidity are January and February (88%).
The months with the lowest relative humidity are April and May (75%).
Average rainfall in September
Gresham, WI
- Average rainfall in September: 1.61"
The wettest month (with the highest rainfall) is May (3.19").
The driest months (with the least rainfall) are January and February (1.02").
Average rainfall days in September
Gresham, WI
- Average rainfall days in September: 11.7 days
The month with the highest number of rainy days is May (15.1 days).
The months with the least rainy days are January and February (4.3 days).
Average snowfall in September
Gresham, WI
- Average snowfall in September: 0"
The month with the highest snowfall is January (5.28").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Gresham, WI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (15.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Gresham, 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 2min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 3h and 30min).
Average sunshine days in September
Gresham, WI
- Average sunshine days in September: 16 days
The month with the most sunshine days is November (16.6 days).
The month with the least sunshine days is April (12.7 days).
Average UV index in September
Gresham, 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
Gresham, WI
- Average cloud cover in September: 37
The months with the most cloud cover are January and February (Cloud cover 63).
The month with the least cloud cover is July (Cloud cover 33).
Average visibility in September
Gresham, WI
- Average visibility in September: 5mi
The months with the highest visibility are March, April, May, June, July, October, November and December (6mi).
The months with the lowest visibility are January, February, August and September (5mi).
Gresham, Wisconsin, USA
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