August weather forecastWinona, MN
August
Weather in August
In August, the summer warmth persists, although there is a slight drop in maximum temperatures compared to July. The town experiences relatively clear skies with a reduction in cloud coverage. Winona's landscapes become more alluring as rainfall decreases to a smaller 2.52" (64mm), much lower than summer peaks. Days remain somewhat longer, and the daylight still plentiful. The gentle wind combines with the warm temperature and creates the perfect weather for outdoor exploits.Temperature
Transitioning from July to August, Winona observes an average high-temperature of a still warm 77°F (25°C), differing subtly from the previous month. Throughout August, Winona encounters an average temperature drop to a refreshing 58.1°F (14.5°C).Humidity
In Winona, the average relative humidity in August is 81%.Rainfall
In Winona, in August, it is raining for 14 days, with typically 2.52" (64mm) of accumulated precipitation. Throughout the year, there are 132.9 rainfall days, and 24.88" (632mm) of precipitation is accumulated.Snowfall
In Winona, snow does not fall in June through September.Daylight
In Winona, the average length of the day in August is 13h and 57min.On the first day of the month, sunrise is at 5:55 am and sunset at 8:30 pm. On the last day of August, in Winona, sunrise is at 6:29 am and sunset at 7:43 pm CDT.
Sunshine
In Winona, the average sunshine in August is 9.6h.UV index
The average daily maximum UV index in August is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the average person.Note: A daily maximum UV index of 5 in August translates into the following instructions:
Guard yourself - Avoiding sunburn is suggested. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Winona, MN
- 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 (20.8°F).
- Average low temperature in August: 58.1°F
The month with the highest average low temperature is July (60.8°F).
The coldest month (with the lowest average low temperature) is January (7.9°F).
Average pressure in August
Winona, MN
- Average pressure in August: 29.95"Hg
The months with the highest atmospheric pressure are January and February (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in August
Winona, MN
- Average wind speed in August: 6.5mph
The windiest month (with the highest average wind speed) is April (9.5mph).
The calmest months (with the lowest average wind speed) are July and August (6.5mph).
Average humidity in August
Winona, MN
- Average humidity in August: 81%
The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is October (76%).
Average rainfall in August
Winona, MN
- Average rainfall in August: 2.52"
The wettest month (with the highest rainfall) is June (4.49").
The driest month (with the least rainfall) is January (0.67").
Average rainfall days in August
Winona, MN
- Average rainfall days in August: 14 days
The month with the highest number of rainy days is June (18.7 days).
The month with the least rainy days is February (2.3 days).
Average snowfall in August
Winona, MN
- Average snowfall in August: 0"
The month with the highest snowfall is February (5.55").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Winona, MN
- Average snowfall days in August: 0 days
The months with the highest number of snowfall days are January and February (11.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Winona, MN
- Average daylight in August: 14h and 0min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in August: 9h and 36min
The month with the most sunshine is July (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).
Average sunshine days in August
Winona, MN
- Average sunshine days in August: 13.5 days
The month with the most sunshine days is December (18.4 days).
The month with the least sunshine days is June (9.4 days).
Average UV index in August
Winona, MN
- Average UV index in August: 5
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 August
Winona, MN
- Average cloud cover in August: 33
The month with the most cloud cover is January (Cloud cover 66).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in August
Winona, MN
- Average visibility in August: 5mi
The months with the highest visibility are April, May, June, October and November (6mi).
The months with the lowest visibility are January, February, March, July, August, September and December (5mi).
