July weather forecast
Thornton, WA

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Weather in July

July is a moderately hot summer month in Thornton, Washington, with an average temperature varying between 83.3°F (28.5°C) and 57°F (13.9°C).

Temperature

July's onset brings a temperature rise, moving from a pleasant 71.1°F (21.7°C) in June to a moderately hot 83.3°F (28.5°C). Despite drastic daily temperature oscillations, Thornton cools down to an average low-temperature of 57°F (13.9°C) in July.

Heat index

The average heat index in July is calculated to be 82.4°F (28°C). A sense of exhaustion might occur with extended exposure and activity, potentially causing heat cramps.
Note that heat index values are valued for light wind and location in the shade. Exposure to unobstructed sunshine could lead to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', provides an understanding of perceived warmth by combining temperature and relative humidity. Metabolic differences, pregnancy status, and the level of physical activity are additional factors influencing an individual's weather perception. Remember, direct sunlight exposure can heighten the heat impact and might increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Young ones often do not realize the necessity to rest and replenish their fluids. Thirst is a delayed indication of dehydration - keeping hydrated, particularly in prolonged physical activity, is crucial.

Humidity

In Thornton, the average relative humidity in July is 42%.

Rainfall

July is the month with the least rainfall in Thornton. Rain falls for 4.5 days and accumulates 0.28" (7mm) of precipitation.

Snowfall

In Thornton, snow does not fall in June through August.

Daylight

In Thornton, the average length of the day in July is 15h and 28min.
On the first day of July in Thornton, Washington, sunrise is at 4:58 am and sunset at 8:48 pm. On the last day of the month, sunrise is at 5:28 am and sunset at 8:23 pm PDT.

Sunshine

The months with the most sunshine in Thornton, Washington, are July and August, with an average of 12h of sunshine.

UV index

The month with the highest UV index in Thornton, Washington, is July, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: In July, the maximum UV index of 7 transforms into these recommendations:
Embrace precautions and observe sun safety norms. Evasion of sunburn is a necessity. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
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Frequently asked questions

Is it hot in Thornton during July?

July temperatures in Thornton vary between a high-temperature of 83.3°F (28.5°C) and a low-temperature of 57°F (13.9°C). In July, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, is calculated to be 82.4°F (28°C).

What is the average humidity in July in Thornton?

In July, the average relative humidity in Thornton, Washington, is 42%.

What is the driest month in Thornton?

July is the month with the least rainfall in Thornton, Washington. Rain falls for 4.5 days and accumulates 0.28" (7mm) of precipitation.

How many days does it rain in July in Thornton?

In Thornton, Washington, in July, it is raining for 4.5 days, with typically 0.28" (7mm) of accumulated precipitation.

When it does not snow in Thornton?

In Thornton, snow does not fall in June through August.

How many hours of daylight does Thornton have in July?

The average day length in July in Thornton is 15h and 28min.

When are sunrise and sunset in July in Thornton?

In July, on the first day of the month, sunrise is at 4:58 am and sunset at 8:48 pm. On the last day of the month, sunrise is at 5:28 am and sunset at 8:23 pm PDT.

What are the months with the most sunshine in Thornton?

The months with the most sunshine in Thornton, Washington, are July and August, with an average of 12h of sunshine.

How long on average sun shines in July in Thornton?

The average sunshine duration in July in Thornton, Washington, is 12h.

When is the highest UV index in Thornton?

With an average maximum UV index of 7, July is the month with the highest UV index in Thornton, Washington.

How high is the UV index in July in Thornton?

In July, the average daily maximum UV index is 7. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in July
Thornton, WA

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).

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Average pressure in July
Thornton, WA

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).

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Average wind speed in July
Thornton, WA

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).

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Average humidity in July
Thornton, WA

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%).

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Average rainfall in July
Thornton, WA

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").

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Average rainfall days in July
Thornton, WA

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).

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Average snowfall in July
Thornton, WA

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").

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Average snowfall days in July
Thornton, WA

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).

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Average daylight in July /
Average sunshine in July
Thornton, WA

Average daylight in July / Average sunshine in July - Thornton, WA
  • Average daylight in July: 15h and 3min

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).

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Average sunshine days in July
Thornton, WA

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).

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Average UV index in July
Thornton, WA

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).

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Average cloud cover in July
Thornton, WA

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).

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Average visibility in July
Thornton, WA

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).

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Thornton, Washington, USA

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