July weather forecastChinook, WA
July
Weather in July
July in Chinook, Washington, is an enjoyable summer month, with an average temperature fluctuating between 63.1°F (17.3°C) and 54.7°F (12.6°C).Temperature
Chinook notes an average high-temperature of an enjoyable 63.1°F (17.3°C) in July, hardly diverging from June. Nighttime temperature reflects an average dip to a cool 54.7°F (12.6°C) in July, subtly cooler than its daytime highs.Humidity
In Chinook, Washington, the average relative humidity in July is 84%.Rainfall
July is the month with the least rainfall. Rain falls for 7.8 days and accumulates 0.35" (9mm) of precipitation.Snowfall
In Chinook, snow does not fall in March through August, October through December.Daylight
In July, the average length of the day is 15h and 21min.On the first day of July, sunrise is at 5:28 am and sunset at 9:11 pm. On the last day of the month, sunrise is at 5:57 am and sunset at 8:46 pm PDT.
Sunshine
July has the most sunshine of the year, with an average of 9.7h of sunshine.UV index
The months with the highest UV index are May through September, with an average maximum UV index of 4. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for average individuals.Note: A daily maximum UV index of 4 in July translates into the following instructions:
Make use of precautions - It is urged to ward off sun damage. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Chinook, WA
- Average high temperature in July: 63.1°F
The warmest month (with the highest average high temperature) is August (63.9°F).
The month with the lowest average high temperature is December (46.8°F).
- Average low temperature in July: 54.7°F
The month with the highest average low temperature is August (55.9°F).
The coldest month (with the lowest average low temperature) is December (41.5°F).
Average pressure in July
Chinook, WA
- Average pressure in July: 30.08"Hg
The month with the highest atmospheric pressure is July (30.08"Hg).
The month with the lowest atmospheric pressure is March (30.01"Hg).
Average wind speed in July
Chinook, WA
- Average wind speed in July: 7.8mph
The windiest month (with the highest average wind speed) is January (11.9mph).
The calmest month (with the lowest average wind speed) is August (7.1mph).
Average humidity in July
Chinook, WA
- Average humidity in July: 84%
The month with the highest relative humidity is August (86%).
The month with the lowest relative humidity is April (80%).
Average rainfall in July
Chinook, WA
- Average rainfall in July: 0.35"
The wettest month (with the highest rainfall) is December (3.31").
The driest month (with the least rainfall) is July (0.35").
Average rainfall days in July
Chinook, WA
- Average rainfall days in July: 7.8 days
The month with the highest number of rainy days is November (18.5 days).
The month with the least rainy days is August (6.7 days).
Average snowfall in July
Chinook, WA
- Average snowfall in July: 0"
The month with the highest snowfall is February (0.31").
The months with the least snowfall are March, April, May, June, July, August, October, November and December (0").
Average snowfall days in July
Chinook, WA
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is February (0.8 days).
The months with the least snowfall days are April, May, June, July, August and October (0 days).
Average daylight in July /
Average sunshine in July
Chinook, WA
- Average daylight in July: 15h and 24min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in July: 9h and 42min
The month with the most sunshine is July (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in July
Chinook, WA
- Average sunshine days in July: 19 days
The month with the most sunshine days is August (20.3 days).
The month with the least sunshine days is November (8.9 days).
Average UV index in July
Chinook, WA
- Average UV index in July: 4
The months with the highest UV index are May, June, July, August and September (UV index 4).
The months with the lowest UV index are February, November and December (UV index 2).
Average cloud cover in July
Chinook, WA
- Average cloud cover in July: 38
The month with the most cloud cover is January (Cloud cover 60).
The months with the least cloud cover are August and September (Cloud cover 37).
Average visibility in July
Chinook, WA
- Average visibility in July: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).





