August weather forecastHartline, WA
August
Weather in August
The last month of the summer, August, is also a moderately hot month in Hartline, Washington, with temperature in the range of an average high of 84.2°F (29°C) and an average low of 61.3°F (16.3°C).Temperature
With the onset of August, a modest change to a still warm 84.2°F (29°C) from July's 84.9°F (29.4°C) is noted in high-temperature. Hartline logs a considerable temperature decrease from the daytime highs during the nights in August, with an average reading of 61.3°F (16.3°C).Humidity
With an average relative humidity of 36%, August is the least humid month.Rainfall
The months with the least rainfall in Hartline, Washington, are July and August Rain falls for 3.2 days and accumulates 0.2" (5mm) of rain.Snowfall
May through August are months without snowfall.Daylight
In August, the average length of the day is 14h and 13min.On the first day of August, sunrise is at 5:34 am and sunset at 8:30 pm. On the last day of the month, sunrise is at 6:14 am and sunset at 7:38 pm PDT.
Sunshine
With an average of 12.1h of sunshine, August has the most sunshine of the year.UV index
The average daily maximum UV index in August is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for the average person.Note: During August, 5 as the daily maximum UV index converts into the following advice:
Exercise prevention - Warding off sunburn is urged. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Enhance your sun protection with tightly woven, yet airy clothing.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Hartline, WA
- Average high temperature in August: 84.2°F
The warmest month (with the highest average high temperature) is July (84.9°F).
The month with the lowest average high temperature is December (31.6°F).
- Average low temperature in August: 61.3°F
The month with the highest average low temperature is August (61.3°F).
The coldest month (with the lowest average low temperature) is December (21.4°F).
Average pressure in August
Hartline, WA
- Average pressure in August: 29.91"Hg
The month with the highest atmospheric pressure is January (30.18"Hg).
The month with the lowest atmospheric pressure is August (29.91"Hg).
Average wind speed in August
Hartline, WA
- Average wind speed in August: 5.7mph
The windiest month (with the highest average wind speed) is April (7mph).
The calmest month (with the lowest average wind speed) is January (4.9mph).
Average humidity in August
Hartline, WA
- Average humidity in August: 36%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is August (36%).
Average rainfall in August
Hartline, WA
- Average rainfall in August: 0.2"
The wettest months (with the highest rainfall) are May and December (1.18").
The driest months (with the least rainfall) are July and August (0.2").
Average rainfall days in August
Hartline, WA
- Average rainfall days in August: 3.2 days
The month with the highest number of rainy days is March (12.1 days).
The month with the least rainy days is August (3.2 days).
Average snowfall in August
Hartline, WA
- Average snowfall in August: 0"
The month with the highest snowfall is January (4.41").
The months with the least snowfall are May, June, July and August (0").
Average snowfall days in August
Hartline, WA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is December (10.5 days).
The months with the least snowfall days are May, June, July and August (0 days).
Average daylight in August /
Average sunshine in August
Hartline, WA
- Average daylight in August: 14h and 12min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in August: 12h and 6min
The month with the most sunshine is August (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days in August
Hartline, WA
- Average sunshine days in August: 25.8 days
The month with the most sunshine days is August (25.8 days).
The month with the least sunshine days is March (14.7 days).
Average UV index in August
Hartline, WA
- Average UV index in August: 5
The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is November (UV index 1).
Average cloud cover in August
Hartline, WA
- Average cloud cover in August: 12
The month with the most cloud cover is January (Cloud cover 55).
The months with the least cloud cover are July and August (Cloud cover 12).
Average visibility in August
Hartline, WA
- 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 December (4mi).
