August weather forecastSwan Valley, ID
August
Weather in August
The last month of the summer, August, is another warm month in Swan Valley, Idaho, with temperature in the range of an average high of 76.5°F (24.7°C) and an average low of 45.3°F (7.4°C).Temperature
August's presence records an average high-temperature of a still moderately hot 76.5°F (24.7°C), closely mirroring July's climate. From the heights of the August heat, Swan Valley records a mean nighttime low of 45.3°F (7.4°C).Humidity
August is the least humid month, with an average relative humidity of 46%.Rainfall
In Swan Valley, during August, the rain falls for 10.6 days and regularly aggregates up to 0.94" (24mm) of precipitation. In Swan Valley, during the entire year, the rain falls for 127 days and collects up to 24.29" (617mm) of precipitation.Snowfall
July and August are months without snowfall.Daylight
In Swan Valley, the average length of the day in August is 13h and 55min.On the first day of the month, sunrise is at 6:15 am and sunset at 8:47 pm. On the last day of August, sunrise is at 6:49 am and sunset at 8:01 pm MDT.
Sunshine
The average sunshine in August is 11.7h.UV index
In August, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: In August, a daily UV index of 4 turns into the following recommendations:
Make use of precautions - Suggestions to resist sunburn are communicated. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Swan Valley, ID
- Average high temperature in August: 76.5°F
The warmest month (with the highest average high temperature) is July (77.5°F).
The month with the lowest average high temperature is December (24.3°F).
- Average low temperature in August: 45.3°F
The months with the highest average low temperature are July and August (45.3°F).
The coldest month (with the lowest average low temperature) is January (7.3°F).
Average pressure in August
Swan Valley, ID
- Average pressure in August: 29.97"Hg
The month with the highest atmospheric pressure is January (30.28"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in August
Swan Valley, ID
- Average wind speed in August: 5.4mph
The windiest month (with the highest average wind speed) is June (5.7mph).
The calmest month (with the lowest average wind speed) is January (4.3mph).
Average humidity in August
Swan Valley, ID
- Average humidity in August: 46%
The month with the highest relative humidity is February (94%).
The month with the lowest relative humidity is August (46%).
Average rainfall in August
Swan Valley, ID
- Average rainfall in August: 0.94"
The wettest month (with the highest rainfall) is February (2.91").
The driest month (with the least rainfall) is July (0.91").
Average rainfall days in August
Swan Valley, ID
- Average rainfall days in August: 10.6 days
The month with the highest number of rainy days is May (17.9 days).
The month with the least rainy days is January (4.6 days).
Average snowfall in August
Swan Valley, ID
- Average snowfall in August: 0"
The month with the highest snowfall is February (22.91").
The months with the least snowfall are July and August (0").
Average snowfall days in August
Swan Valley, ID
- Average snowfall days in August: 0 days
The months with the highest number of snowfall days are February and December (22.3 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in August /
Average sunshine in August
Swan Valley, ID
- Average daylight in August: 13h and 54min
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: 11h and 42min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is February (Average sunshine: 4h and 0min).
Average sunshine days in August
Swan Valley, ID
- Average sunshine days in August: 15.3 days
The month with the most sunshine days is September (16.2 days).
The month with the least sunshine days is April (5.3 days).
Average UV index in August
Swan Valley, ID
- Average UV index in August: 4
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 1).
Average cloud cover in August
Swan Valley, ID
- Average cloud cover in August: 13
The month with the most cloud cover is February (Cloud cover 67).
The months with the least cloud cover are July and August (Cloud cover 13).
Average visibility in August
Swan Valley, 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, February and December (3mi).





