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
The advent of September brings a slight shift in average high-temperature, moving from a warm 75.9°F (24.4°C) in August to a pleasant 69.1°F (20.6°C). During September, Graytown experiences a consistent low-temperature average of 50.4°F (10.2°C).Humidity
In September, the average relative humidity in Graytown, Wisconsin, is 79%.Rainfall
In September, the rain falls for 12.4 days. Throughout September, 1.93" (49mm) of precipitation is accumulated. Throughout the year, there are 128.1 rainfall days, and 23.46" (596mm) of precipitation is accumulated.Snowfall
In Graytown, snow does not fall in June through September.Daylight
In Graytown, the average length of the day in September is 12h and 31min.On the first day of September in Graytown, sunrise is at 6:31 am and sunset at 7:45 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 6:50 pm CDT.
Sunshine
In Graytown, Wisconsin, the average sunshine in September is 8.5h.UV index
The average daily maximum UV index in September in Graytown is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: A typical high UV index of 4 in September suggests the following recommendations:
Take precautions. Light skin individuals may get burned in less than 30 minutes. To protect against the Sun's most potent rays, avoid direct exposure around midday. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Frequently asked questions
What is the temperature in September in Graytown?
What is the average humidity in September in Graytown?
How much does it rain in Graytown in September?
When it does not snow in Graytown?
Does it snow in Graytown in September?
How many hours of daylight does Graytown have in September?
When are sunrise and sunset in September in Graytown?
How long on average sun shines in September in Graytown?
How high is the UV index in September in Graytown?
Average temperature in September
Graytown, WI
- Average high temperature in September: 69.1°F
The warmest month (with the highest average high temperature) is July (78.3°F).
The month with the lowest average high temperature is January (18°F).
- Average low temperature in September: 50.4°F
The month with the highest average low temperature is July (59.9°F).
The coldest month (with the lowest average low temperature) is January (5°F).
Average pressure in September
Graytown, WI
- Average pressure in September: 30"Hg
The month with the highest atmospheric pressure is February (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in September
Graytown, WI
- Average wind speed in September: 8mph
The windiest month (with the highest average wind speed) is April (9.6mph).
The calmest month (with the lowest average wind speed) is July (6.8mph).
Average humidity in September
Graytown, WI
- Average humidity in September: 79%
The month with the highest relative humidity is January (92%).
The month with the lowest relative humidity is April (76%).
Average rainfall in September
Graytown, WI
- Average rainfall in September: 1.93"
The wettest month (with the highest rainfall) is June (3.86").
The driest month (with the least rainfall) is January (0.67").
Average rainfall days in September
Graytown, WI
- Average rainfall days in September: 12.4 days
The month with the highest number of rainy days is June (18 days).
The month with the least rainy days is January (2.7 days).
Average snowfall in September
Graytown, WI
- Average snowfall in September: 0"
The month with the highest snowfall is December (4.8").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Graytown, WI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (16.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Graytown, WI
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in September: 8h and 3min
The month with the most sunshine is July (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 2h and 42min).
Average sunshine days in September
Graytown, WI
- Average sunshine days in September: 15 days
The month with the most sunshine days is October (15.9 days).
The month with the least sunshine days is June (9.3 days).
Average UV index in September
Graytown, WI
- Average UV index in September: 4
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
Graytown, WI
- Average cloud cover in September: 38
The month with the most cloud cover is January (Cloud cover 72).
The months with the least cloud cover are July and August (Cloud cover 34).
Average visibility in September
Graytown, WI
- Average visibility in September: 6mi
The months with the highest visibility are April, May, June, July, September, October and November (6mi).
The months with the lowest visibility are January and February (4mi).
Graytown, Wisconsin, USA
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