August weather forecast
Winona, MN

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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

The commencement of August in Winona brings an average high-temperature of a still moderately hot 77°F (25°C), marking an inconsequential divergence from July. Winona usually reports an average low-temperature of 58.1°F (14.5°C) during the month of August.

Humidity

In August, the average relative humidity in Winona is 81%.

Rainfall

In Winona, in August, it is raining for 14 days, with typically 2.52" (64mm) of accumulated precipitation. In Winona, during the entire year, the rain falls for 132.9 days and collects up to 24.88" (632mm) of precipitation.

Snowfall

In Winona, snow does not fall in June through September.

Daylight

In August, the average length of the day 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

In August, the average daily maximum UV index in Winona is 5. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the average person.
Note: The UV index of 5 during August translates into the following guidance:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
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Frequently asked questions

What is the usual temperature for Winona in August?

Winona in August has an average high-temperature of 77°F (25°C) and an average low-temperature of 58.1°F (14.5°C).

What is the average humidity in August in Winona?

In Winona, the average relative humidity in August is 81%.

How many days does it rain in August in Winona?

In Winona, Minnesota, during August, the rain falls for 14 days and regularly aggregates up to 2.52" (64mm) of precipitation.

When it does not snow in Winona?

In Winona, Minnesota, snow does not fall in June through September.

How many hours of daylight does Winona have in August?

In Winona, Minnesota, the average day length in August is 13h and 57min.

What time are sunrise and sunset in August in Winona?

On the first day of August, sunrise is at 5:55 am and sunset at 8:30 pm. On the last day of the month, sunrise is at 6:29 am and sunset at 7:43 pm CDT.

How many hours of sunshine does Winona have in August?

In Winona, Minnesota, the average sunshine duration in August is 9.6h.

How high is the UV index in August in Winona?

In August, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a medium health risk from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
Winona, MN

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).

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Average pressure in August
Winona, MN

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).

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Average wind speed in August
Winona, MN

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).

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Average humidity in August
Winona, MN

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%).

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Average rainfall in August
Winona, MN

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").

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Average rainfall days in August
Winona, MN

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).

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Average snowfall in August
Winona, MN

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").

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Average snowfall days in August
Winona, MN

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).

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Average daylight in August /
Average sunshine in August
Winona, MN

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 4min

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).

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Average sunshine days in August
Winona, MN

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).

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Average UV index in August
Winona, MN

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).

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Average cloud cover in August
Winona, MN

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).

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Average visibility in August
Winona, MN

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).

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Winona, Minnesota, USA

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