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
July's arrival coincides with a marginal rise in the average high-temperature, moving from June's pleasant 70.2°F (21.2°C) to a warm 78.4°F (25.8°C). Heisson reports a significant contrast between daytime and nighttime temperatures, with an average low of 50.2°F (10.1°C) in July.Humidity
In Heisson, the average relative humidity in July is 68%.Rainfall
The month with the least rainfall is July, when the rain falls for 5.6 days and typically collects 0.35" (9mm) of precipitation.Snowfall
In Heisson, snow does not fall in April through October.Daylight
In July, the average length of the day is 15h and 18min.On the first day of the month, sunrise is at 5:24 am and sunset at 9:03 pm. On the last day of July, sunrise is at 5:52 am and sunset at 8:39 pm PDT.
Sunshine
The average sunshine in July is 10.7h.UV index
With an average maximum UV index of 6, July is the month with the highest UV index. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: The average daily UV index of 6 in July transforms into the following instructions:
Avoid overexposure. Fair-skinned individuals can burn in under 20 minutes. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are July temperatures?
What is the average humidity in July?
What is the driest month?
How many days does it rain in July?
When it does not snow?
What is the average length of the day in July?
What time are sunrise and sunset in July?
How long on average sun shines in July?
What is the month with the highest UV index?
How high is the UV index in July?
Average temperature in July
Heisson, WA
- Average high temperature in July: 78.4°F
The warmest month (with the highest average high temperature) is August (79.3°F).
The month with the lowest average high temperature is December (42.6°F).
- Average low temperature in July: 50.2°F
The month with the highest average low temperature is August (52°F).
The coldest month (with the lowest average low temperature) is December (32.7°F).
Average pressure in July
Heisson, WA
- Average pressure in July: 30.03"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is August (30"Hg).
Average wind speed in July
Heisson, WA
- Average wind speed in July: 4.1mph
The windiest month (with the highest average wind speed) is January (6.1mph).
The calmest month (with the lowest average wind speed) is August (3.8mph).
Average humidity in July
Heisson, WA
- Average humidity in July: 68%
The month with the highest relative humidity is February (86%).
The month with the lowest relative humidity is August (67%).
Average rainfall in July
Heisson, WA
- Average rainfall in July: 0.35"
The wettest month (with the highest rainfall) is January (6.06").
The driest month (with the least rainfall) is July (0.35").
Average rainfall days in July
Heisson, WA
- Average rainfall days in July: 5.6 days
The month with the highest number of rainy days is March (20.3 days).
The month with the least rainy days is August (5.1 days).
Average snowfall in July
Heisson, WA
- Average snowfall in July: 0"
The month with the highest snowfall is February (2.76").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in July
Heisson, WA
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is February (3.7 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
Heisson, WA
- Average daylight in July: 15h and 2min
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: 10h and 4min
The month with the most sunshine is August (Average sunshine: 10h and 48min).
The months with the least sunshine are January and February (Average sunshine: 3h and 48min).
Average sunshine days in July
Heisson, WA
- Average sunshine days in July: 24.1 days
The month with the most sunshine days is July (24.1 days).
The month with the least sunshine days is February (8.2 days).
Average UV index in July
Heisson, 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
Heisson, WA
- Average cloud cover in July: 28
The month with the most cloud cover is February (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 26).
Average visibility in July
Heisson, WA
- Average visibility in July: 5mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
Heisson, Washington, USA
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