August weather forecastPorthill, ID
August
Weather in August
The last month of the summer, August, is another warm month in Porthill, Idaho, with an average temperature varying between 76.3°F (24.6°C) and 47.7°F (8.7°C).Temperature
The month of August, characterized by an average high of 76.3°F (24.6°C) and a low of 47.7°F (8.7°C), is recognized as the warmest.Humidity
August is the least humid month, with an average relative humidity of 55%.Rainfall
The month with the least rainfall is August, when the rain falls for 6.5 days and typically collects 0.43" (11mm) of precipitation.Snowfall
May through August are months without snowfall.Daylight
The average length of the day in August is 14h and 19min.On the first day of the month, sunrise is at 6:20 am and sunset at 9:24 pm. On the last day of August, in Porthill, sunrise is at 7:02 am and sunset at 8:29 pm MDT.
Sunshine
August has the most sunshine of the year in Porthill, Idaho, with an average of 11.9h of sunshine.UV index
In August, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the ordinary person.Note: A maximum UV index of 4 in August translates into the following recommendations:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Porthill, ID
- Average high temperature in August: 76.3°F
The warmest month (with the highest average high temperature) is August (76.3°F).
The month with the lowest average high temperature is December (27.3°F).
- Average low temperature in August: 47.7°F
The month with the highest average low temperature is August (47.7°F).
The coldest months (with the lowest average low temperature) are January and December (16.3°F).
Average pressure in August
Porthill, ID
- Average pressure in August: 29.93"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in August
Porthill, ID
- Average wind speed in August: 3.7mph
The windiest month (with the highest average wind speed) is June (4.3mph).
The calmest month (with the lowest average wind speed) is December (3.5mph).
Average humidity in August
Porthill, ID
- Average humidity in August: 55%
The month with the highest relative humidity is January (94%).
The month with the lowest relative humidity is August (55%).
Average rainfall in August
Porthill, ID
- Average rainfall in August: 0.43"
The wettest month (with the highest rainfall) is December (2.76").
The driest month (with the least rainfall) is August (0.43").
Average rainfall days in August
Porthill, ID
- Average rainfall days in August: 6.5 days
The month with the highest number of rainy days is April (19.7 days).
The month with the least rainy days is August (6.5 days).
Average snowfall in August
Porthill, ID
- Average snowfall in August: 0"
The month with the highest snowfall is January (11.02").
The months with the least snowfall are May, June, July and August (0").
Average snowfall days in August
Porthill, ID
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is December (17.4 days).
The months with the least snowfall days are May, June, July and August (0 days).
Average daylight in August /
Average sunshine in August
Porthill, ID
- Average daylight in August: 14h and 18min
The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 18min).
- Average sunshine in August: 11h and 54min
The month with the most sunshine is August (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in August
Porthill, ID
- Average sunshine days in August: 21.8 days
The month with the most sunshine days is August (21.8 days).
The month with the least sunshine days is March (7.7 days).
Average UV index in August
Porthill, 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, November and December (UV index 1).
Average cloud cover in August
Porthill, ID
- Average cloud cover in August: 15
The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 15).
Average visibility in August
Porthill, ID
- Average visibility in August: 6mi
The months with the highest visibility are May, June, July, August and September (6mi).
The month with the lowest visibility is January (2mi).
