July weather forecastRoy, WA
July
Weather in July
July in Roy, Washington, is a moderately hot summer month, with an average temperature fluctuating between 77.5°F (25.3°C) and 50.5°F (10.3°C).Temperature
In July, the meteorological conditions subtly change with the average high-temperature edging from a pleasant 70.2°F (21.2°C) in June to a warm 77.5°F (25.3°C). July nights bring a pronounced temperature shift, with averages hovering around a fresh 50.5°F (10.3°C).Humidity
With an average relative humidity of 69%, July is the least humid month in Roy.Rainfall
The month with the least rainfall is July, when the rain falls for 6 days and typically collects 0.35" (9mm) of precipitation.Snowfall
May through October are months without snowfall in Roy.Daylight
The average length of the day in July is 15h and 27min.On the first day of the month, sunrise is at 5:19 am and sunset at 9:08 pm. On the last day of July, sunrise is at 5:49 am and sunset at 8:43 pm PDT.
Sunshine
In July, the average sunshine is 10.4h.UV index
The month with the highest UV index in Roy is July, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for the ordinary person.Note: The maximum daily UV index of 6 during July translates into the following directions:
Fend off overexposure. Sun protection is vital. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. 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
Roy, WA
- Average high temperature in July: 77.5°F
The warmest month (with the highest average high temperature) is August (78.4°F).
The month with the lowest average high temperature is December (43.5°F).
- Average low temperature in July: 50.5°F
The month with the highest average low temperature is August (52.2°F).
The coldest month (with the lowest average low temperature) is February (34°F).
Average pressure in July
Roy, WA
- Average pressure in July: 30.04"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
Roy, WA
- Average wind speed in July: 3.9mph
The windiest month (with the highest average wind speed) is March (5mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).
Average humidity in July
Roy, WA
- Average humidity in July: 69%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is July (69%).
Average rainfall in July
Roy, WA
- Average rainfall in July: 0.35"
The wettest month (with the highest rainfall) is December (4.96").
The driest month (with the least rainfall) is July (0.35").
Average rainfall days in July
Roy, WA
- Average rainfall days in July: 6 days
The month with the highest number of rainy days is March (19.7 days).
The month with the least rainy days is August (5.2 days).
Average snowfall in July
Roy, WA
- Average snowfall in July: 0"
The month with the highest snowfall is February (1.73").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in July
Roy, WA
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is February (2.8 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
Roy, WA
- Average daylight in July: 15h and 24min
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 July: 10h and 24min
The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 3h and 54min).
Average sunshine days in July
Roy, WA
- Average sunshine days in July: 22.5 days
The month with the most sunshine days is August (22.9 days).
The month with the least sunshine days is November (9.1 days).
Average UV index in July
Roy, WA
- Average UV index in July: 6
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in July
Roy, WA
- Average cloud cover in July: 28
The months with the most cloud cover are January and December (Cloud cover 59).
The months with the least cloud cover are July and August (Cloud cover 28).
Average visibility in July
Roy, 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 and December (4mi).
