August weather forecastShelley, ID
August
Weather in August
In August, Shelley, Idaho continues to relish the summer heat, though the temperature subtly drops, hinting at the coming autumn. While the rainfall marginally increases from July, the total sunlight hours start to decrease. Daylight hours also begin to drop, yet the city still enjoys a fair amount of sunshine. The mild temperature swings coupled with breezy winds add to the overall comfortable condition of August. It's an appealing time for those who prefer a milder summer experience.Temperature
Shelley signifies an average high-temperature of a still moderately hot 83.3°F (28.5°C) in August, closely mirroring the 85.3°F (29.6°C) of July. A noteworthy thermal contrast characterizes Shelley's August nights, with temperatures averaging at a fresh 55°F (12.8°C).Humidity
The months with the lowest humidity are July and August, with an average relative humidity of 36%.Rainfall
In Shelley, in August, it is raining for 9.3 days, with typically 0.83" (21mm) of accumulated precipitation. In Shelley, during the entire year, the rain falls for 124.6 days and collects up to 12.24" (311mm) of precipitation.Snowfall
June through August are months without snowfall.Daylight
In August, the average length of the day is 13h and 55min.On the first day of August, sunrise is at 6:19 am and sunset at 8:50 pm. On the last day of the month, sunrise is at 6:52 am and sunset at 8:04 pm MDT.
Sunshine
The average sunshine in August is 11.8h.UV index
The average daily maximum UV index in August in Shelley is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: In August, a regular UV index of 5 translates into these guidelines:
Be vigilant - Preventing sunburn is recommended. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Shelley, ID
- Average high temperature in August: 83.3°F
The warmest month (with the highest average high temperature) is July (85.3°F).
The month with the lowest average high temperature is December (27.9°F).
- Average low temperature in August: 55°F
The month with the highest average low temperature is August (55°F).
The coldest month (with the lowest average low temperature) is January (14.7°F).
Average pressure in August
Shelley, ID
- Average pressure in August: 29.95"Hg
The month with the highest atmospheric pressure is January (30.3"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in August
Shelley, ID
- Average wind speed in August: 7.1mph
The windiest month (with the highest average wind speed) is April (8.9mph).
The calmest month (with the lowest average wind speed) is January (6mph).
Average humidity in August
Shelley, ID
- Average humidity in August: 36%
The month with the highest relative humidity is January (90%).
The months with the lowest relative humidity are July and August (36%).
Average rainfall in August
Shelley, ID
- Average rainfall in August: 0.83"
The wettest month (with the highest rainfall) is May (1.57").
The driest month (with the least rainfall) is July (0.51").
Average rainfall days in August
Shelley, ID
- Average rainfall days in August: 9.3 days
The month with the highest number of rainy days is May (15.9 days).
The month with the least rainy days is January (6.1 days).
Average snowfall in August
Shelley, ID
- Average snowfall in August: 0"
The month with the highest snowfall is January (7.44").
The months with the least snowfall are June, July and August (0").
Average snowfall days in August
Shelley, ID
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is December (16.7 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in August /
Average sunshine in August
Shelley, 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 48min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 4h and 48min).
Average sunshine days in August
Shelley, ID
- Average sunshine days in August: 16.9 days
The month with the most sunshine days is October (18.9 days).
The month with the least sunshine days is March (10 days).
Average UV index in August
Shelley, ID
- 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 and December (UV index 1).
Average cloud cover in August
Shelley, ID
- Average cloud cover in August: 11
The month with the most cloud cover is February (Cloud cover 51).
The months with the least cloud cover are July and August (Cloud cover 11).
Average visibility in August
Shelley, ID
- Average visibility in August: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and February (4mi).
