July weather forecastThornton, WA
July
Weather in July
July in Thornton, Washington, is a warm summer month, with an average temperature fluctuating between 83.3°F (28.5°C) and 57°F (13.9°C).Temperature
As Thornton, Washington, welcomes July, the average high-temperature sees a rise, transitioning from a pleasant 71.1°F (21.7°C) in June to a moderately hot 83.3°F (28.5°C). Thornton witnesses a consistent, sharp contrast from the daytime highs, with an average low-temperature of 57°F (13.9°C) throughout July.Heat index
For July, the heat index is appraised at 82.4°F (28°C). When exposure and activity are sustained, they could induce fatigue, with a chance of heat cramps.When referencing the heat index, its values are suitable for shady environments and light breezes. The heat index can potentially augment by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'real feel', evaluates the perceived heat by adding the effect of moisture in the air. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. It is important to note that direct sunlight can intensify the weather impact, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Youths are typically more endangered than adults since they usually sweat less. Their larger skin surface concerning their smaller bodies and higher heat production due to activity further adds to their vulnerability.
Humidity
The average relative humidity in July is 42%.Rainfall
The month with the least rainfall is July, when the rain falls for 4.5 days and typically collects 0.28" (7mm) of precipitation.Snowfall
June through August are months without snowfall.Daylight
In July, the average length of the day is 15h and 28min.On the first day of the month, sunrise is at 4:58 am and sunset at 8:48 pm. On the last day of July, sunrise is at 5:28 am and sunset at 8:23 pm PDT.
Sunshine
July and August, with an average of 12h 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 7. A UV Index of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for average individuals.Note: In July, the maximum UV index of 7 suggests these recommendations:
Steer clear of overexposure. Fair-skinned individuals can be scorched in less than 20 minutes. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. Opt for tightly woven and loose clothing to enhance protection from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Thornton, WA
- Average high temperature in July: 83.3°F
The warmest month (with the highest average high temperature) is August (83.5°F).
The month with the lowest average high temperature is December (34.7°F).
- Average low temperature in July: 57°F
The month with the highest average low temperature is August (60.4°F).
The coldest month (with the lowest average low temperature) is December (24.6°F).
Average pressure in July
Thornton, WA
- Average pressure in July: 29.92"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is August (29.91"Hg).
Average wind speed in July
Thornton, WA
- Average wind speed in July: 6mph
The windiest month (with the highest average wind speed) is March (8mph).
The calmest month (with the lowest average wind speed) is August (5.9mph).
Average humidity in July
Thornton, WA
- Average humidity in July: 42%
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is August (37%).
Average rainfall in July
Thornton, WA
- Average rainfall in July: 0.28"
The wettest month (with the highest rainfall) is December (1.93").
The driest month (with the least rainfall) is July (0.28").
Average rainfall days in July
Thornton, WA
- Average rainfall days in July: 4.5 days
The month with the highest number of rainy days is April (14.6 days).
The month with the least rainy days is July (4.5 days).
Average snowfall in July
Thornton, WA
- Average snowfall in July: 0"
The month with the highest snowfall is February (6.69").
The months with the least snowfall are June, July and August (0").
Average snowfall days in July
Thornton, WA
- Average snowfall days in July: 0 days
The months with the highest number of snowfall days are February and December (9.6 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in July /
Average sunshine in July
Thornton, WA
- Average daylight in July: 15h and 30min
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: 12h and 0min
The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The months with the least sunshine are January and December (Average sunshine: 4h and 36min).
Average sunshine days in July
Thornton, WA
- Average sunshine days in July: 24.6 days
The month with the most sunshine days is July (24.6 days).
The month with the least sunshine days is February (12.2 days).
Average UV index in July
Thornton, WA
- Average UV index in July: 7
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in July
Thornton, WA
- Average cloud cover in July: 11
The months with the most cloud cover are January and December (Cloud cover 53).
The month with the least cloud cover is July (Cloud cover 11).
Average visibility in July
Thornton, WA
- Average visibility in July: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (5mi).
