Contents
- Weather in July
- Frequently asked questions
- Average temperature in July
- Average pressure in July
- Average wind speed in July
- Average humidity in July
- Average rainfall in July
- Average rainfall days in July
- Average snowfall in July
- Average snowfall days in July
- Average daylight in July
- Average sunshine in July
- Average sunshine days in July
- Average UV index in July
- Average cloud cover in July
- Average visibility in July
Weather in July
Temperature
The warmest months are July and August, with an average high-temperature of 68.4°F (20.2°C).Humidity
July is the least humid month in Mount Vernon, with an average relative humidity of 75%.Rainfall
The month with the least rainfall is July, when the rain falls for 7.9 days and typically collects 0.63" (16mm) of precipitation.Snowfall
In Mount Vernon, snow does not fall in May through October.Daylight
In July, the average length of the day in Mount Vernon is 15h and 38min.On the first day of July, sunrise is at 5:12 am and sunset at 9:14 pm. On the last day of the month, sunrise is at 5:43 am and sunset at 8:48 pm PDT.
Sunshine
July and August, with an average of 10.4h of sunshine, are months with the most sunshine.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 vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: The average daily UV index of 5 in July transform into the following instructions:
Take precautions - Protection against skin and eye damage is obliged. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
FAQ
What is the warmest month in Mount Vernon?
What is the temperature in July in Mount Vernon?
What is the least humid month in Mount Vernon?
What is the average humidity in July in Mount Vernon?
What is the driest month in Mount Vernon?
How much does it rain in Mount Vernon in July?
When it does not snow in Mount Vernon?
How many hours of daylight does Mount Vernon have in July?
When are sunrise and sunset in July in Mount Vernon?
What are the months with the most sunshine in Mount Vernon?
How long on average sun shines in July in Mount Vernon?
When is the highest UV index in Mount Vernon?
What is the UV index intensity in July in Mount Vernon?
Average temperature in July
Mount Vernon, WA
- Average high temperature in July: 68.4°F
The warmest months (with the highest average high temperature) are July and August (68.4°F).
The month with the lowest average high temperature is December (42.6°F).
- Average low temperature in July: 52.7°F
The month with the highest average low temperature is August (54.1°F).
The coldest month (with the lowest average low temperature) is February (36.1°F).
Average pressure in July
Mount Vernon, 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
Mount Vernon, WA
- Average wind speed in July: 3.9mph
The windiest month (with the highest average wind speed) is November (7.5mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).
Average humidity in July
Mount Vernon, WA
- Average humidity in July: 75%
The months with the highest relative humidity are January and February (83%).
The month with the lowest relative humidity is July (75%).
Average rainfall in July
Mount Vernon, WA
- Average rainfall in July: 0.63"
The wettest month (with the highest rainfall) is November (4.96").
The driest month (with the least rainfall) is July (0.63").
Average rainfall days in July
Mount Vernon, WA
- Average rainfall days in July: 7.9 days
The month with the highest number of rainy days is March (20.8 days).
The month with the least rainy days is August (7.2 days).
Average snowfall in July
Mount Vernon, WA
- Average snowfall in July: 0"
The month with the highest snowfall is February (3.54").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in July
Mount Vernon, WA
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is February (3.6 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
Mount Vernon, WA
- Average daylight in July: 15h and 38min
The month with the longest days is June (Average daylight: 16h and 2min).
The month with the shortest days is December (Average daylight: 8h and 23min).
- Average sunshine in July: 10h and 24min
The months with the most sunshine are July and August (Average sunshine: 10h and 24min).
The month with the least sunshine is December (Average sunshine: 3h and 54min).
Average sunshine days in July
Mount Vernon, WA
- Average sunshine days in July: 21.6 days
The month with the most sunshine days is August (22.3 days).
The month with the least sunshine days is November (8.1 days).
Average UV index in July
Mount Vernon, 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
Mount Vernon, WA
- Average cloud cover in July: 27
The month with the most cloud cover is December (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 26).
Average visibility in July
Mount Vernon, 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).
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