August weather forecastUnion Grove, WI
August
Weather in August
The last month of the summer, August, is also a moderately hot month in Union Grove, Wisconsin, with an average temperature ranging between min 62.6°F (17°C) and max 77°F (25°C).Temperature
Union Grove's average high-temperature in August is a still moderately hot 77°F (25°C), marking an insignificant difference from the 78.4°F (25.8°C) of July. In August, Union Grove encounters an average low-temperature of 62.6°F (17°C) during the night.Humidity
The average relative humidity in August is 80%.Rainfall
In Union Grove, during August, the rain falls for 17.1 days and regularly aggregates up to 3.15" (80mm) of precipitation. In Union Grove, during the entire year, the rain falls for 154.2 days and collects up to 30.67" (779mm) of precipitation.Snowfall
May through September are months without snowfall.Daylight
In August, the average length of the day is 13h and 52min.On the first day of August, sunrise is at 5:44 am and sunset at 8:12 pm. On the last day of the month, sunrise is at 6:16 am and sunset at 7:27 pm CDT.
Sunshine
The month with the most sunshine is August, with an average of 10.3h of sunshine.UV index
August is the month with the highest UV index, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for the ordinary person.Note: The maximum UV index of 6 during August translates into these guidelines:
Sustain precautions and conform to sun safety norms. Preventing sunburn is necessary. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Union Grove, WI
- Average high temperature in August: 77°F
The warmest month (with the highest average high temperature) is July (78.4°F).
The month with the lowest average high temperature is January (26.8°F).
- Average low temperature in August: 62.6°F
The month with the highest average low temperature is July (63.5°F).
The coldest month (with the lowest average low temperature) is January (16°F).
Average pressure in August
Union Grove, WI
- Average pressure in August: 29.97"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in August
Union Grove, WI
- Average wind speed in August: 6.7mph
The windiest month (with the highest average wind speed) is January (10.9mph).
The calmest month (with the lowest average wind speed) is August (6.7mph).
Average humidity in August
Union Grove, WI
- Average humidity in August: 80%
The month with the highest relative humidity is January (85%).
The months with the lowest relative humidity are October and November (76%).
Average rainfall in August
Union Grove, WI
- Average rainfall in August: 3.15"
The wettest month (with the highest rainfall) is June (3.78").
The driest month (with the least rainfall) is January (1.5").
Average rainfall days in August
Union Grove, WI
- Average rainfall days in August: 17.1 days
The months with the highest number of rainy days are May and July (19 days).
The month with the least rainy days is February (4.9 days).
Average snowfall in August
Union Grove, WI
- Average snowfall in August: 0"
The month with the highest snowfall is February (4.76").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in August
Union Grove, WI
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (12.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Union Grove, WI
- Average daylight in August: 13h and 54min
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 August: 10h and 18min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in August
Union Grove, WI
- Average sunshine days in August: 10.6 days
The month with the most sunshine days is November (16 days).
The month with the least sunshine days is July (9.3 days).
Average UV index in August
Union Grove, WI
- Average UV index in August: 6
The month with the highest UV index is August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in August
Union Grove, WI
- Average cloud cover in August: 29
The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in August
Union Grove, WI
- Average visibility in August: 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).
