August weather forecastSaint Charles, ID
August
Weather in August
August, the last month of the summer in Saint Charles, is also a moderately hot month, with an average temperature fluctuating between 49.8°F (9.9°C) and 77.5°F (25.3°C).Temperature
August denotes a minimal variation in the average high-temperature to a still moderately hot 77.5°F (25.3°C) from July's 79.2°F (26.2°C). A noteworthy thermal contrast characterizes Saint Charles's August nights, with temperatures averaging at a chilly 49.8°F (9.9°C).Humidity
August is the least humid month, with an average relative humidity of 42%.Rainfall
In Saint Charles, in August, during 8.9 rainfall days, 1.02" (26mm) of precipitation is typically accumulated. Throughout the year, there are 105.7 rainfall days, and 16.69" (424mm) of precipitation is accumulated.Snowfall
July and August are months without snowfall.Daylight
The average length of the day in August is 13h and 50min.On the first day of the month, sunrise is at 6:19 am and sunset at 8:44 pm. On the last day of August, sunrise is at 6:50 am and sunset at 8:00 pm MDT.
Sunshine
July and August, with an average of 11.8h of sunshine, are months with the most sunshine.UV index
The average daily maximum UV index in August is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for average individuals.Note: An average UV index of 4 in August transforms into this advice:
Take precautions - Protection against skin and eye damage is obliged. The Sun's radiation is especially intense around midday; try to stay in shade during this period. 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
Saint Charles, ID
- Average high temperature in August: 77.5°F
The warmest month (with the highest average high temperature) is July (79.2°F).
The month with the lowest average high temperature is December (25.5°F).
- Average low temperature in August: 49.8°F
The month with the highest average low temperature is August (49.8°F).
The coldest month (with the lowest average low temperature) is January (8.4°F).
Average pressure in August
Saint Charles, ID
- Average pressure in August: 29.94"Hg
The month with the highest atmospheric pressure is January (30.29"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in August
Saint Charles, ID
- Average wind speed in August: 5.6mph
The windiest month (with the highest average wind speed) is June (6mph).
The calmest month (with the lowest average wind speed) is January (4.3mph).
Average humidity in August
Saint Charles, ID
- Average humidity in August: 42%
The month with the highest relative humidity is January (92%).
The month with the lowest relative humidity is August (42%).
Average rainfall in August
Saint Charles, ID
- Average rainfall in August: 1.02"
The wettest month (with the highest rainfall) is May (2.28").
The driest month (with the least rainfall) is July (0.91").
Average rainfall days in August
Saint Charles, ID
- Average rainfall days in August: 8.9 days
The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is January (4.3 days).
Average snowfall in August
Saint Charles, ID
- Average snowfall in August: 0"
The month with the highest snowfall is March (12.17").
The months with the least snowfall are July and August (0").
Average snowfall days in August
Saint Charles, ID
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (20 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in August /
Average sunshine in August
Saint Charles, ID
- Average daylight in August: 13h and 48min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in August: 11h and 48min
The months with the most sunshine are July and August (Average sunshine: 11h and 48min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).
Average sunshine days in August
Saint Charles, ID
- Average sunshine days in August: 17.2 days
The month with the most sunshine days is July (18.4 days).
The month with the least sunshine days is February (8.6 days).
Average UV index in August
Saint Charles, ID
- Average UV index in August: 4
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover in August
Saint Charles, ID
- Average cloud cover in August: 13
The month with the most cloud cover is February (Cloud cover 63).
The months with the least cloud cover are July and August (Cloud cover 13).
Average visibility in August
Saint Charles, ID
- Average visibility in August: 6mi
The months with the highest visibility are May, June, July, August, September and October (6mi).
The months with the lowest visibility are January and February (3mi).
