September weather forecastHarshaw, WI
September
Weather in September
The first month of the autumn, September, is still a comfortable month in Harshaw, Wisconsin, with temperature in the range of an average high of 67.1°F (19.5°C) and an average low of 48.4°F (9.1°C).Temperature
The start of September signals a gentle decrease in the average high-temperature, transitioning from a moderately hot 75.2°F (24°C) in August to a comfortable 67.1°F (19.5°C). In Harshaw, September nights witness a steady temperature drop to a frosty 48.4°F (9.1°C).Humidity
In September, the average relative humidity is 80%.Rainfall
In Harshaw, in September, it is raining for 13.3 days, with typically 1.57" (40mm) of accumulated precipitation. In Harshaw, during the entire year, the rain falls for 125.3 days and collects up to 22.87" (581mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
In September, the average length of the day is 12h and 31min.On the first day of September in Harshaw, sunrise is at 6:20 am and sunset at 7:35 pm. On the last day of the month, sunrise is at 6:56 am and sunset at 6:40 pm CDT.
Sunshine
The average sunshine in September is 7.7h.UV index
In September, the average daily maximum UV index is 3. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: In September, the maximum UV index of 3 translates into these guidelines:
Undertake precautions - Obligation exists to protect against skin and eye damage. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Harshaw, WI
- Average high temperature in September: 67.1°F
The warmest month (with the highest average high temperature) is July (77.4°F).
The month with the lowest average high temperature is January (18.9°F).
- Average low temperature in September: 48.4°F
The month with the highest average low temperature is July (56.8°F).
The coldest month (with the lowest average low temperature) is January (7.7°F).
Average pressure in September
Harshaw, WI
- Average pressure in September: 30.01"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
Harshaw, WI
- Average wind speed in September: 7.3mph
The windiest months (with the highest average wind speed) are April and November (8.5mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).
Average humidity in September
Harshaw, WI
- Average humidity in September: 80%
The months with the highest relative humidity are January and February (91%).
The month with the lowest relative humidity is May (72%).
Average rainfall in September
Harshaw, WI
- Average rainfall in September: 1.57"
The wettest month (with the highest rainfall) is May (2.87").
The driest month (with the least rainfall) is January (1.02").
Average rainfall days in September
Harshaw, WI
- Average rainfall days in September: 13.3 days
The month with the highest number of rainy days is July (16.1 days).
The month with the least rainy days is February (2.3 days).
Average snowfall in September
Harshaw, WI
- Average snowfall in September: 0"
The month with the highest snowfall is December (8.58").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Harshaw, WI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (21.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Harshaw, WI
- Average daylight in September: 12h and 30min
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: 7h and 42min
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 6min).
Average sunshine days in September
Harshaw, WI
- Average sunshine days in September: 13.9 days
The month with the most sunshine days is October (14.3 days).
The month with the least sunshine days is February (10.3 days).
Average UV index in September
Harshaw, 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, February, November and December (UV index 1).
Average cloud cover in September
Harshaw, WI
- Average cloud cover in September: 45
The months with the most cloud cover are January and February (Cloud cover 81).
The month with the least cloud cover is July (Cloud cover 39).
Average visibility in September
Harshaw, WI
- Average visibility in September: 5mi
The months with the highest visibility are May and June (6mi).
The months with the lowest visibility are January and February (4mi).
