July weather forecast
Thornton, CA

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Weather in July

July, the same as June, in Thornton, California, is another hot summer month, with an average temperature varying between 93.9°F (34.4°C) and 58.6°F (14.8°C).

Temperature

July, noted for its average high-temperature of 93.9°F (34.4°C) and an average low-temperature of 58.6°F (14.8°C), is considered the warmest month.

Heat index

Throughout July, the heat index is estimated at a sweltering 100.4°F (38°C). Emphasize additional safety, risk of heat cramps and heat exhaustion is high. Continuous activity might result in heatstroke.
Keep in mind the heat index values are meant for areas in shade and with light wind. Direct sunlight exposure may result in a rise of the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', reflects the blend of air temperature and relative humidity to give a temperature impression. This impact is subjective, influenced by the person's physical activity and individual heat perception, affected by factors including wind, attire, and metabolic differences. Given the impact of direct sunlight, it's noteworthy that the felt temperature can rise by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Children frequently underestimate the necessity to rest and hydrate. Thirst is a late sign of dehydration - thus, it is vital to stay hydrated, particularly during lengthy physical exercises.
To achieve cooling, the human body employs perspiration, relying on the subsequent evaporation of sweat. When the level of relative humidity is elevated, evaporation diminishes, causing more warmth to be retained in the body than in dry air. When heat surpasses the body's release mechanisms, dehydration and overheating risks become pronounced.

Humidity

With an average relative humidity of 45%, July is the least humid month.

Rainfall

July and August are months with the least rain in Thornton, California, when the rain falls for 1.4 days and typically aggregates up to 0.04" (1mm) of rain.

Snowfall

In Thornton, snow does not fall in January through November.

Daylight

In Thornton, the average length of the day in July is 14h and 31min.
On the first day of July, sunrise is at 5:46 am and sunset at 8:32 pm. On the last day of the month, sunrise is at 6:08 am and sunset at 8:15 pm PDT.

Sunshine

July has the most sunshine of the year, with an average of 12.1h of sunshine.

UV index

In July, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: The daily high UV index of 6 in July translates into this advice:
Stay clear of intense sun exposure. Solar protection is of utmost significance. 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. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
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Frequently asked questions

What month is the hottest in Thornton?

Thornton's July weather, with an average high temperature of 93.9°F (34.4°C) and an average low temperature of 58.6°F (14.8°C), tends to be the warmest of the year.

How hot does it get in Thornton in July?

In Thornton, 93.9°F (34.4°C) is the average high-temperature and 58.6°F (14.8°C) is the average low-temperature during July. The average heat index (a.k.a. 'real feel', 'feels like'), which represents the influence of relative humidity on air temperature, in July is estimated at 100.4°F (38°C).

What is the least humid month in Thornton?

July is the least humid month in Thornton, California, with an average relative humidity of 45%.

What is the average humidity in July in Thornton?

In Thornton, California, the average relative humidity in July is 45%.

What is the driest month in Thornton?

July and August are months with the least rain when the rain falls for 1.4 days and typically aggregates up to 0.04" (1mm) of rain.

How much does it rain in Thornton in July?

In Thornton, during July, the rain falls for 1.4 days and regularly aggregates up to 0.04" (1mm) of precipitation.

When it does not snow in Thornton?

In Thornton, California, snow does not fall in January through November.

How many hours of daylight does Thornton have in July?

In Thornton, California, the average day length in July is 14h and 31min.

When is the sunrise / sunset in July in Thornton?

On the first day of July, sunrise is at 5:46 am and sunset at 8:32 pm. On the last day of the month, sunrise is at 6:08 am and sunset at 8:15 pm PDT.

What month has the most sunshine in Thornton?

With an average of 12.1h of sunshine, July has the most sunshine of the year.

How long on average sun shines in July in Thornton?

In Thornton, California, the average sunshine duration in July is 12.1h.

What is the UV index reading in July in Thornton?

The average daily maximum UV index in July in Thornton is 6. A UV Index reading of 6 to 7 represents a high health threat from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in July
Thornton, CA

Average temperature in July - Thornton, CA
  • Average high temperature in July: 93.9°F

The warmest month (with the highest average high temperature) is July (93.9°F).
The month with the lowest average high temperature is December (55°F).

  • Average low temperature in July: 58.6°F

The month with the highest average low temperature is August (58.8°F).
The coldest month (with the lowest average low temperature) is December (41°F).

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Average pressure in July
Thornton, CA

Average pressure in July - Thornton, CA
  • Average pressure in July: 29.92"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

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Average wind speed in July
Thornton, CA

Average wind speed in July - Thornton, CA
  • Average wind speed in July: 5.6mph

The windiest months (with the highest average wind speed) are February and June (5.8mph).
The calmest month (with the lowest average wind speed) is November (4.4mph).

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Average humidity in July
Thornton, CA

Average humidity in July - Thornton, CA
  • Average humidity in July: 45%

The month with the highest relative humidity is March (75%).
The month with the lowest relative humidity is July (45%).

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Average rainfall in July
Thornton, CA

Average rainfall in July - Thornton, CA
  • Average rainfall in July: 0.04"

The wettest month (with the highest rainfall) is February (2.4").
The driest months (with the least rainfall) are July and August (0.04").

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Average rainfall days in July
Thornton, CA

Average rainfall days in July - Thornton, CA
  • Average rainfall days in July: 1.4 days

The month with the highest number of rainy days is March (12.4 days).
The month with the least rainy days is June (0.9 days).

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Average snowfall days in July
Thornton, CA

Average snowfall days in July - Thornton, CA
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is December (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, July, August, September, October and November (0 days).

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

Average daylight in July / Average sunshine in July - Thornton, CA
  • Average daylight in July: 14h and 3min

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in July: 12h and 1min

The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 54min).

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Average sunshine days in July
Thornton, CA

Average sunshine days in July - Thornton, CA
  • Average sunshine days in July: 28.9 days

The month with the most sunshine days is August (29.3 days).
The month with the least sunshine days is March (17.8 days).

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Average UV index in July
Thornton, CA

Average UV index in July - Thornton, CA
  • Average UV index in July: 6

The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).

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Average cloud cover in July
Thornton, CA

Average cloud cover in July - Thornton, CA
  • Average cloud cover in July: 4

The month with the most cloud cover is March (Cloud cover 35).
The month with the least cloud cover is July (Cloud cover 4).

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Average visibility in July
Thornton, CA

Average visibility in July - Thornton, CA
  • 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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Thornton, California, USA

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