July weather forecastMill Creek, WA
July
Weather in July
July in Mill Creek, Washington, is a pleasant summer month, with temperature in the range of an average low of 52.5°F (11.4°C) and an average high of 72.1°F (22.3°C).Temperature
July's onset brings a minor rise in the average high-temperature, moving from a refreshing 66.7°F (19.3°C) in June to an agreeable 72.1°F (22.3°C). Mill Creek's nighttime temperature in July drops to an average of 52.5°F (11.4°C).Humidity
With an average relative humidity of 72%, July is the least humid month.Rainfall
The month with the least rainfall is July, when the rain falls for 7.7 days and typically collects 0.43" (11mm) of precipitation.Snowfall
In Mill Creek, snow does not fall in May through October.Daylight
In July, the average length of the day is 15h and 34min.On the first day of July, sunrise is at 5:14 am and sunset at 9:11 pm. On the last day of the month, sunrise is at 5:45 am and sunset at 8:44 pm PDT.
Sunshine
In July, the average sunshine is 10.5h.UV index
With an average maximum UV index of 5, July is the month with the highest UV index in Mill Creek. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.Note: An average maximum UV index of 5 in July leads to these recommendations:
Exercise caution. Those with pale skin may experience burns in less than half an hour. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Mill Creek, WA
- Average high temperature in July: 72.1°F
The warmest month (with the highest average high temperature) is August (72.7°F).
The month with the lowest average high temperature is December (42.6°F).
- Average low temperature in July: 52.5°F
The month with the highest average low temperature is August (54°F).
The coldest month (with the lowest average low temperature) is December (35.4°F).
Average pressure in July
Mill Creek, WA
- Average pressure in July: 30.03"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The months with the lowest atmospheric pressure are March, August and September (30.01"Hg).
Average wind speed in July
Mill Creek, WA
- Average wind speed in July: 3.7mph
The windiest month (with the highest average wind speed) is November (6.2mph).
The calmest month (with the lowest average wind speed) is August (3.6mph).
Average humidity in July
Mill Creek, WA
- Average humidity in July: 72%
The months with the highest relative humidity are February and December (84%).
The month with the lowest relative humidity is July (72%).
Average rainfall in July
Mill Creek, WA
- Average rainfall in July: 0.43"
The wettest month (with the highest rainfall) is December (3.54").
The driest month (with the least rainfall) is July (0.43").
Average rainfall days in July
Mill Creek, WA
- Average rainfall days in July: 7.7 days
The month with the highest number of rainy days is March (19.8 days).
The month with the least rainy days is August (6.3 days).
Average snowfall in July
Mill Creek, WA
- Average snowfall in July: 0"
The month with the highest snowfall is February (4.61").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in July
Mill Creek, WA
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is February (5.2 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
Mill Creek, WA
- Average daylight in July: 15h and 36min
The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in July: 10h and 30min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).
Average sunshine days in July
Mill Creek, WA
- Average sunshine days in July: 21.8 days
The month with the most sunshine days is August (22.6 days).
The month with the least sunshine days is November (9.1 days).
Average UV index in July
Mill Creek, 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, November and December (UV index 2).
Average cloud cover in July
Mill Creek, WA
- Average cloud cover in July: 27
The month with the most cloud cover is December (Cloud cover 54).
The month with the least cloud cover is August (Cloud cover 25).
Average visibility in July
Mill Creek, WA
- Average visibility in July: 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).





