September weather forecastBoscobel, WI
September
Weather in September
September, the first month of the autumn in Boscobel, is still a pleasant month, with an average temperature varying between 71.8°F (22.1°C) and 51.4°F (10.8°C).Temperature
September brings a minor shift in the average high-temperature, adjusting from a moderately hot 79.2°F (26.2°C) in August to a pleasant 71.8°F (22.1°C). During the month of September, Boscobel experiences a steady low-temperature average of 51.4°F (10.8°C).Humidity
The average relative humidity in September in Boscobel is 80%.Rainfall
In Boscobel, in September, during 11.8 rainfall days, 2.56" (65mm) of precipitation is typically accumulated. Throughout the year, there are 142.4 rainfall days, and 28.66" (728mm) of precipitation is accumulated.Snowfall
May through September are months without snowfall.Daylight
In Boscobel, the average length of the day in September is 12h and 29min.On the first day of September, sunrise is at 6:27 am and sunset at 7:37 pm. On the last day of the month, sunrise is at 6:59 am and sunset at 6:45 pm CDT.
Sunshine
The average sunshine in September is 8.9h.UV index
In Boscobel, the average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum UV index of 3 during September translates into these guidelines:
Prioritize safety - Recommendations to avert sunburn are shared. The Sun's radiation is especially intense around midday; try to stay in shade during this period. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Boscobel, WI
- Average high temperature in September: 71.8°F
The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (23.4°F).
- Average low temperature in September: 51.4°F
The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (9.9°F).
Average pressure in September
Boscobel, WI
- Average pressure in September: 30.02"Hg
The months with the highest atmospheric pressure are January and February (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in September
Boscobel, WI
- Average wind speed in September: 7.3mph
The windiest month (with the highest average wind speed) is April (9.4mph).
The calmest month (with the lowest average wind speed) is August (6.4mph).
Average humidity in September
Boscobel, WI
- Average humidity in September: 80%
The month with the highest relative humidity is January (89%).
The months with the lowest relative humidity are April and October (77%).
Average rainfall in September
Boscobel, WI
- Average rainfall in September: 2.56"
The wettest month (with the highest rainfall) is June (4.17").
The driest month (with the least rainfall) is January (1.14").
Average rainfall days in September
Boscobel, WI
- Average rainfall days in September: 11.8 days
The month with the highest number of rainy days is May (19.2 days).
The month with the least rainy days is February (4.3 days).
Average snowfall in September
Boscobel, WI
- Average snowfall in September: 0"
The month with the highest snowfall is February (5.98").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Boscobel, WI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (15.7 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Boscobel, WI
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in September: 8h and 54min
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 24min).
Average sunshine days in September
Boscobel, WI
- Average sunshine days in September: 16.4 days
The month with the most sunshine days is November (16.7 days).
The month with the least sunshine days is June (9.2 days).
Average UV index in September
Boscobel, WI
- Average UV index in September: 3
The months with the highest UV index are May, 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
Boscobel, WI
- Average cloud cover in September: 34
The month with the most cloud cover is January (Cloud cover 66).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in September
Boscobel, WI
- Average visibility in September: 5mi
The months with the highest visibility are April, May, June, October and November (6mi).
The month with the lowest visibility is January (4mi).





