August weather forecast
Saint Charles, MN

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Weather in August

The last month of the summer, August, is also a moderately hot month in Saint Charles, Minnesota, with temperature in the range of an average low of 58.6°F (14.8°C) and an average high of 76.6°F (24.8°C).

Temperature

Saint Charles's average high-temperature marks a still moderately hot 76.6°F (24.8°C) with the advent of August, closely mirroring that of the preceding month. Throughout the month of August, Saint Charles witnesses an average temperature of 58.6°F (14.8°C).

Humidity

The average relative humidity in August is 82%.

Rainfall

In Saint Charles, during August, the rain falls for 13.2 days and regularly aggregates up to 2.36" (60mm) of precipitation. In Saint Charles, during the entire year, the rain falls for 122.7 days and collects up to 24.06" (611mm) of precipitation.

Snowfall

June through September are months without snowfall.

Daylight

The average length of the day in August in Saint Charles is 13h and 57min.
On the first day of the month, sunrise is at 5:57 am and sunset at 8:31 pm. On the last day of August, sunrise is at 6:31 am and sunset at 7:45 pm CDT.

Sunshine

In August, the average sunshine is 9.5h.

UV index

The average daily maximum UV index in August is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for average individuals.
Note: In August, the maximum UV index of 5 transforms into these recommendations:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Updated: Jul 16, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average August temperature?

During August, Saint Charles experiences an average high-temperature of 76.6°F (24.8°C) and a low-temperature of 58.6°F (14.8°C).

What is the average humidity in August?

The average relative humidity in August is 82%.

How much does it rain in August?

In Saint Charles, during August, the rain falls for 13.2 days and regularly aggregates up to 2.36" (60mm) of precipitation.

When it does not snow?

June through September are months without snowfall.

How many hours of daylight does Saint Charles have in August?

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

What time are sunrise and sunset in August?

On the first day of August, sunrise is at 5:57 am and sunset at 8:31 pm. On the last day of the month, sunrise is at 6:31 am and sunset at 7:45 pm CDT.

How long on average sun shines in August?

In Saint Charles, the average sunshine duration in August is 9.5h.

How high is the UV index in August?

The average daily maximum UV index in August in Saint Charles is 5. A UV Index reading of 3 to 5 represents a moderate health threat from exposure to Sun's UV rays.
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
Saint Charles, MN

Average temperature in August - Saint Charles, MN
  • Average high temperature in August: 76.6°F

The warmest month (with the highest average high temperature) is July (78.3°F).
The month with the lowest average high temperature is January (20.7°F).

  • Average low temperature in August: 58.6°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 (7.5°F).

Average pressure in August
Saint Charles, MN

Average pressure in August - Saint Charles, MN
  • Average pressure in August: 29.96"Hg

The months with the highest atmospheric pressure are January and February (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

Average wind speed in August
Saint Charles, MN

Average wind speed in August - Saint Charles, MN
  • Average wind speed in August: 7mph

The windiest month (with the highest average wind speed) is April (10.1mph).
The calmest month (with the lowest average wind speed) is August (7mph).

Average humidity in August
Saint Charles, MN

Average humidity in August - Saint Charles, MN
  • Average humidity in August: 82%

The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is October (75%).

Average rainfall in August
Saint Charles, MN

Average rainfall in August - Saint Charles, MN
  • Average rainfall in August: 2.36"

The wettest month (with the highest rainfall) is June (4.33").
The driest month (with the least rainfall) is January (0.75").

Average rainfall days in August
Saint Charles, MN

Average rainfall days in August - Saint Charles, MN
  • Average rainfall days in August: 13.2 days

The month with the highest number of rainy days is June (18.2 days).
The month with the least rainy days is February (1.9 days).

Average snowfall in August
Saint Charles, MN

Average snowfall in August - Saint Charles, MN
  • Average snowfall in August: 0"

The month with the highest snowfall is February (5.94").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in August
Saint Charles, MN

Average snowfall days in August - Saint Charles, MN
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (14.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in August /
Average sunshine in August
Saint Charles, MN

Average daylight in August / Average sunshine in August - Saint Charles, MN
  • Average daylight in August: 13h and 5min

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 3min

The month with the most sunshine is July (Average sunshine: 9h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).

Average sunshine days in August
Saint Charles, MN

Average sunshine days in August - Saint Charles, MN
  • Average sunshine days in August: 14.2 days

The month with the most sunshine days is November (18 days).
The month with the least sunshine days is June (9.3 days).

Average UV index in August
Saint Charles, MN

Average UV index in August - Saint Charles, 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
Saint Charles, MN

Average cloud cover in August - Saint Charles, MN
  • Average cloud cover in August: 33

The month with the most cloud cover is January (Cloud cover 67).
The month with the least cloud cover is August (Cloud cover 33).

Average visibility in August
Saint Charles, MN

Average visibility in August - Saint Charles, MN
  • Average visibility in August: 6mi

The months with the highest visibility are April, May, June, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March, July and December (5mi).

Saint Charles, Minnesota, USA

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