September weather forecastGrand View, WI
September
Weather in September
September, the first month of the autumn in Grand View, is also an agreeable month, with an average temperature fluctuating between 49.6°F (9.8°C) and 68.2°F (20.1°C).Temperature
The arrival of September correlates with a minor temperature reduction, down from August's warm 76.5°F (24.7°C) to a pleasant 68.2°F (20.1°C). Nighttime temperatures in Grand View hover around an average low of 49.6°F (9.8°C) in September.Humidity
In Grand View, the average relative humidity in September is 78%.Rainfall
In Grand View, during September, the rain falls for 13.6 days and regularly aggregates up to 1.5" (38mm) of precipitation. In Grand View, during the entire year, the rain falls for 124.9 days and collects up to 21.85" (555mm) of precipitation.Snowfall
In Grand View, Wisconsin, snow does not fall in June through September.Daylight
In September, the average length of the day is 12h and 32min.On the first day of September, sunrise is at 6:25 am and sunset at 7:42 pm. On the last day of the month, sunrise is at 7:02 am and sunset at 6:45 pm CDT.
Sunshine
In Grand View, the average sunshine in September is 8.3h.UV index
The average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for average individuals.Note: The maximum daily UV index, 3 in September, converts into the following recommendations:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. 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
Average temperature in September
Grand View, WI
- Average high temperature in September: 68.2°F
The warmest month (with the highest average high temperature) is July (79°F).
The month with the lowest average high temperature is January (17.6°F).
- Average low temperature in September: 49.6°F
The month with the highest average low temperature is July (57.7°F).
The coldest month (with the lowest average low temperature) is January (5.5°F).
Average pressure in September
Grand View, WI
- Average pressure in September: 30"Hg
The month with the highest atmospheric pressure is February (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in September
Grand View, WI
- Average wind speed in September: 7.4mph
The windiest months (with the highest average wind speed) are April and November (8.3mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).
Average humidity in September
Grand View, WI
- Average humidity in September: 78%
The month with the highest relative humidity is January (93%).
The month with the lowest relative humidity is May (72%).
Average rainfall in September
Grand View, WI
- Average rainfall in September: 1.5"
The wettest month (with the highest rainfall) is July (2.64").
The driest month (with the least rainfall) is January (0.91").
Average rainfall days in September
Grand View, WI
- Average rainfall days in September: 13.6 days
The month with the highest number of rainy days is June (16.3 days).
The month with the least rainy days is January (2.4 days).
Average snowfall in September
Grand View, WI
- Average snowfall in September: 0"
The month with the highest snowfall is December (9.09").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Grand View, WI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (23.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Grand View, WI
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in September: 8h and 18min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 2h and 12min).
Average sunshine days in September
Grand View, WI
- Average sunshine days in September: 14.1 days
The month with the most sunshine days is September (14.1 days).
The month with the least sunshine days is December (8.9 days).
Average UV index in September
Grand View, 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, February, November and December (UV index 1).
Average cloud cover in September
Grand View, WI
- Average cloud cover in September: 40
The month with the most cloud cover is January (Cloud cover 80).
The month with the least cloud cover is July (Cloud cover 35).
Average visibility in September
Grand View, WI
- Average visibility in September: 5mi
The months with the highest visibility are May, June, July and October (6mi).
The months with the lowest visibility are January, February, March and December (4mi).
