October weather forecastBrookfield, WI
October
Weather in October
October marks the middle of fall in Brookfield, marked by a significant decline in temperatures and an uptick in rainfall to 1.89" (48mm). The landscape transitions into a vibrant mix of reds, oranges, and yellows, offering splendid sights for nature lovers. Despite shorter daylight hours, the autumn sun continues to shine, casting an unparalleled golden hue over the city. A significant drop in temperatures along with a mounting cloud cover herald the approaching winter season. The weather in October encapsulates Wisconsin's charismatic autumn and paves the way for the imminent winter months.Temperature
October brings a decrease in the average high-temperature, shifting from an agreeable 70.2°F (21.2°C) in September to a mild 57.2°F (14°C). Brookfield, during October, witnesses an average low-temperature of 44.6°F (7°C).Humidity
April, October and November, with an average relative humidity of 76%, are the least humid months.Rainfall
In Brookfield, in October, it is raining for 12.4 days, with typically 1.89" (48mm) of accumulated precipitation. Throughout the year, in Brookfield, there are 129.9 rainfall days, and 19.69" (500mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. October is the first month it typically snows. Throughout October, in the average 0.5 snowfall days, it receives 0.63" (16mm) of snow. Throughout the year, there are 47.4 snowfall days, and 12.48" (317mm) of snow is accumulated.Daylight
In October, the average length of the day in Brookfield is 11h and 1min.On the first day of the month, sunrise is at 6:50 am and sunset at 6:33 pm. On the last day of October, sunrise is at 7:26 am and sunset at 5:45 pm CDT.
Sunshine
The average sunshine in October in Brookfield is 5.4h.UV index
In October, the average daily maximum UV index is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: The UV index of 2 in October translates into these instructions:
Most people face no serious problems with extended sun exposure, but those with fair skin, infants, and children always need protection. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in October
Brookfield, WI
- Average high temperature in October: 57.2°F
The warmest month (with the highest average high temperature) is July (77.9°F).
The month with the lowest average high temperature is January (25.3°F).
- Average low temperature in October: 44.6°F
The month with the highest average low temperature is July (63.7°F).
The coldest month (with the lowest average low temperature) is January (15.3°F).
Average pressure in October
Brookfield, WI
- Average pressure in October: 29.99"Hg
The months with the highest atmospheric pressure are January, February and March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in October
Brookfield, WI
- Average wind speed in October: 9.8mph
The windiest month (with the highest average wind speed) is January (11mph).
The calmest month (with the lowest average wind speed) is July (6.9mph).
Average humidity in October
Brookfield, WI
- Average humidity in October: 76%
The month with the highest relative humidity is January (86%).
The months with the lowest relative humidity are April, October and November (76%).
Average rainfall in October
Brookfield, WI
- Average rainfall in October: 1.89"
The wettest month (with the highest rainfall) is July (2.6").
The driest month (with the least rainfall) is December (0.75").
Average rainfall days in October
Brookfield, WI
- Average rainfall days in October: 12.4 days
The month with the highest number of rainy days is July (16.3 days).
The month with the least rainy days is February (3.8 days).
Average snowfall in October
Brookfield, WI
- Average snowfall in October: 0.63"
The month with the highest snowfall is January (3.39").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in October
Brookfield, WI
- Average snowfall days in October: 0.5 days
The month with the highest number of snowfall days is January (12.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in October /
Average sunshine in October
Brookfield, WI
- Average daylight in October: 11h and 0min
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 October: 5h and 24min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in October
Brookfield, WI
- Average sunshine days in October: 16 days
The month with the most sunshine days is December (18.6 days).
The month with the least sunshine days is July (12.1 days).
Average UV index in October
Brookfield, WI
- Average UV index in October: 2
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in October
Brookfield, WI
- Average cloud cover in October: 44
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in October
Brookfield, WI
- Average visibility in October: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).





