August weather forecastEighteenmile, ID
August
Weather in August
The last month of the summer, August, is also a moderately hot month in Eighteenmile, Idaho, with an average temperature fluctuating between 75.7°F (24.3°C) and 46.6°F (8.1°C).Temperature
Welcoming August, Eighteenmile notes an average high-temperature of a still warm 75.7°F (24.3°C), nearly consistent with July's 77.4°F (25.2°C). Eighteenmile's August nights bring a significant temperature shift, averaging at a frosty 46.6°F (8.1°C).Humidity
The least humid month is August, with an average relative humidity of 47%.Rainfall
In Eighteenmile, in August, it is raining for 8 days, with typically 0.71" (18mm) of accumulated precipitation. In Eighteenmile, during the entire year, the rain falls for 106.1 days and collects up to 20.83" (529mm) of precipitation.Snowfall
August is the only month when snow does not fall.Daylight
In August, the average length of the day is 13h and 58min.On the first day of August, sunrise is at 6:15 am and sunset at 8:51 pm. On the last day of the month, sunrise is at 6:50 am and sunset at 8:05 pm MDT.
Sunshine
In August, the average sunshine is 11.6h.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 unsafe exposure to UV radiation for the average person.Note: In August, the maximum UV index of 4 suggests this advice:
Put precautions into practice - Protective measures against sun-induced damage are advised. When the Sun is at its strongest around midday, find shade and limit exposure. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Eighteenmile, ID
- Average high temperature in August: 75.7°F
The warmest month (with the highest average high temperature) is July (77.4°F).
The month with the lowest average high temperature is December (22.3°F).
- Average low temperature in August: 46.6°F
The month with the highest average low temperature is August (46.6°F).
The coldest months (with the lowest average low temperature) are January and December (6.8°F).
Average pressure in August
Eighteenmile, ID
- Average pressure in August: 29.98"Hg
The month with the highest atmospheric pressure is January (30.26"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in August
Eighteenmile, ID
- Average wind speed in August: 5.6mph
The windiest month (with the highest average wind speed) is June (6.3mph).
The calmest month (with the lowest average wind speed) is January (4.4mph).
Average humidity in August
Eighteenmile, ID
- Average humidity in August: 47%
The months with the highest relative humidity are January and February (94%).
The month with the lowest relative humidity is August (47%).
Average rainfall in August
Eighteenmile, ID
- Average rainfall in August: 0.71"
The wettest month (with the highest rainfall) is February (2.64").
The driest month (with the least rainfall) is July (0.47").
Average rainfall days in August
Eighteenmile, ID
- Average rainfall days in August: 8 days
The month with the highest number of rainy days is May (17 days).
The month with the least rainy days is January (3.8 days).
Average snowfall in August
Eighteenmile, ID
- Average snowfall in August: 0"
The month with the highest snowfall is January (19.84").
The month with the least snowfall is August (0").
Average snowfall days in August
Eighteenmile, ID
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is December (23 days).
The month with the least snowfall days is August (0 days).
Average daylight in August /
Average sunshine in August
Eighteenmile, ID
- Average daylight in August: 14h and 0min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in August: 11h and 36min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in August
Eighteenmile, ID
- Average sunshine days in August: 20.3 days
The month with the most sunshine days is July (21.2 days).
The month with the least sunshine days is February (5.9 days).
Average UV index in August
Eighteenmile, 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, February, November and December (UV index 1).
Average cloud cover in August
Eighteenmile, ID
- Average cloud cover in August: 14
The month with the most cloud cover is February (Cloud cover 67).
The month with the least cloud cover is July (Cloud cover 13).
Average visibility in August
Eighteenmile, 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).
