Contents
- Weather in August
- Frequently asked questions
- Average temperature in August
- Average pressure in August
- Average wind speed in August
- Average humidity in August
- Average rainfall in August
- Average rainfall days in August
- Average snowfall in August
- Average snowfall days in August
- Average daylight in August
- Average sunshine in August
- Average sunshine days in August
- Average UV index in August
- Average cloud cover in August
- Average visibility in August
Weather in August
Temperature
In Union Gap, the peak temperatures are generally noted in August, averaging a high of 86.5°F (30.3°C) and a low of 60.3°F (15.7°C).Humidity
The months with the lowest humidity are July and August, with an average relative humidity of 39%.Rainfall
In Union Gap, in August, during 2 rainfall days, 0.16" (4mm) of precipitation is typically accumulated. Throughout the year, in Union Gap, there are 82.2 rainfall days, and 5.43" (138mm) of precipitation is accumulated.Snowfall
April through August and October are months without snowfall in Union Gap.Daylight
In Union Gap, the average length of the day in August is 14h and 8min.On the first day of the month, sunrise is at 5:43 am and sunset at 8:32 pm. On the last day of August, sunrise is at 6:21 am and sunset at 7:42 pm PDT.
Sunshine
The months with the most sunshine are July and August, with an average of 12.1h of sunshine.UV index
The average daily maximum UV index in August in Union Gap is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum daily UV index of 5 in August interprets into the following recommendations:
Exercise prevention - Protecting skin and eyes from harm is required. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What part of the year is the hottest?
How hot does it get in August?
What are the least humid months?
What is the average humidity in August?
How many days does it rain in August?
When it does not snow?
Does it snow in August?
How many hours of daylight does Union Gap have in August?
When is the sunrise / sunset in August?
What is the month with the most sunshine in Union Gap?
How long on average sun shines in August?
What is the UV index intensity in August?
Average temperature in August
Union Gap, WA
- Average high temperature in August: 86.5°F
The warmest month (with the highest average high temperature) is August (86.5°F).
The month with the lowest average high temperature is December (36.9°F).
- Average low temperature in August: 60.3°F
The month with the highest average low temperature is August (60.3°F).
The coldest month (with the lowest average low temperature) is December (25.5°F).
Average pressure in August
Union Gap, WA
- Average pressure in August: 29.93"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is August (29.93"Hg).
Average wind speed in August
Union Gap, WA
- Average wind speed in August: 6.5mph
The windiest month (with the highest average wind speed) is June (7.1mph).
The calmest month (with the lowest average wind speed) is December (4.4mph).
Average humidity in August
Union Gap, WA
- Average humidity in August: 39%
The month with the highest relative humidity is January (81%).
The months with the lowest relative humidity are July and August (39%).
Average rainfall in August
Union Gap, WA
- Average rainfall in August: 0.16"
The wettest month (with the highest rainfall) is January (0.87").
The driest month (with the least rainfall) is July (0.08").
Average rainfall days in August
Union Gap, WA
- Average rainfall days in August: 2 days
The month with the highest number of rainy days is March (10.8 days).
The month with the least rainy days is August (2 days).
Average snowfall in August
Union Gap, WA
- Average snowfall in August: 0"
The month with the highest snowfall is December (2.76").
The months with the least snowfall are April, May, June, July, August and October (0").
Average snowfall days in August
Union Gap, WA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is December (5.4 days).
The months with the least snowfall days are May, June, July, August and October (0 days).
Average daylight in August /
Average sunshine in August
Union Gap, WA
- Average daylight in August: 14h and 1min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in August: 12h and 1min
The months with the most sunshine are July and August (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 5h and 36min).
Average sunshine days in August
Union Gap, WA
- Average sunshine days in August: 27.4 days
The month with the most sunshine days is July (27.5 days).
The month with the least sunshine days is February (15.8 days).
Average UV index in August
Union Gap, WA
- Average UV index in August: 5
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in August
Union Gap, WA
- Average cloud cover in August: 9
The month with the most cloud cover is January (Cloud cover 40).
The months with the least cloud cover are July and August (Cloud cover 9).
Average visibility in August
Union Gap, WA
- Average visibility in August: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
Union Gap, Washington, USA
Weather forecast for your location
2. Allow the app to use your location