July weather forecastSummit, WA
July
Weather in July
July in Summit, Washington, is a moderately hot summer month, with an average temperature ranging between max 76.3°F (24.6°C) and min 50.2°F (10.1°C).Temperature
Summit's transition into July is marked by a minor temperature shift, moving from an agreeable 68.5°F (20.3°C) in June to a moderately hot 76.3°F (24.6°C). In July, the temperature in Summit, Washington, sees a substantial plunge from daytime highs to a low average of 50.2°F (10.1°C).Humidity
The least humid month in Summit is July, with an average relative humidity of 69%.Rainfall
The month with the least rainfall in Summit, Washington, is July, when the rain falls for 7 days and typically collects 0.43" (11mm) of precipitation.Snowfall
In Summit, snow does not fall in April through October.Daylight
In Summit, the average length of the day in July is 15h and 28min.On the first day of July in Summit, sunrise is at 5:18 am and sunset at 9:08 pm. On the last day of the month, sunrise is at 5:48 am and sunset at 8:43 pm PDT.
Sunshine
The average sunshine in July in Summit is 10.7h.UV index
July is the month with the highest UV index, with an average maximum UV index of 5. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the ordinary person.Note: In July, the maximum UV index of 5 suggests this advice:
Guard yourself - Precautionary measures against sun damage are advocated. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Summit, WA
- Average high temperature in July: 76.3°F
The warmest month (with the highest average high temperature) is August (76.5°F).
The month with the lowest average high temperature is December (42.8°F).
- Average low temperature in July: 50.2°F
The month with the highest average low temperature is August (51.6°F).
The coldest month (with the lowest average low temperature) is December (32.7°F).
Average pressure in July
Summit, WA
- Average pressure in July: 30.03"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is August (30"Hg).
Average wind speed in July
Summit, WA
- Average wind speed in July: 3.7mph
The windiest month (with the highest average wind speed) is March (4.9mph).
The calmest month (with the lowest average wind speed) is August (3.5mph).
Average humidity in July
Summit, WA
- Average humidity in July: 69%
The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is July (69%).
Average rainfall in July
Summit, WA
- Average rainfall in July: 0.43"
The wettest month (with the highest rainfall) is December (4.92").
The driest month (with the least rainfall) is July (0.43").
Average rainfall days in July
Summit, WA
- Average rainfall days in July: 7 days
The month with the highest number of rainy days is March (21 days).
The month with the least rainy days is August (6.2 days).
Average snowfall in July
Summit, WA
- Average snowfall in July: 0"
The month with the highest snowfall is February (1.42").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in July
Summit, WA
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is February (2.7 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in July /
Average sunshine in July
Summit, WA
- Average daylight in July: 15h and 30min
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 36min).
- Average sunshine in July: 10h and 42min
The month with the most sunshine is August (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 4h and 12min).
Average sunshine days in July
Summit, WA
- Average sunshine days in July: 22.2 days
The month with the most sunshine days is August (22.3 days).
The month with the least sunshine days is February (8.2 days).
Average UV index in July
Summit, WA
- Average UV index in July: 5
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, October, November and December (UV index 2).
Average cloud cover in July
Summit, WA
- Average cloud cover in July: 26
The months with the most cloud cover are January and December (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 25).
Average visibility in July
Summit, WA
- Average visibility in July: 6mi
The months with the highest visibility are July and August (6mi).
The months with the lowest visibility are January, February, March, April, May, June, September, October, November and December (5mi).





