June weather forecast
Thornton, CA

Weather in June

The first month of the summer, June, is a hot month in Thornton, California, with temperature in the range of an average high of 88.2°F (31.2°C) and an average low of 56.7°F (13.7°C).

Temperature

In Thornton, the average high-temperature in June increases from a moderately hot 77.7°F (25.4°C) in May to a tropical 88.2°F (31.2°C). In June, the average low-temperature is 56.7°F (13.7°C).

Heat index

The average heat index in June is calculated to be a hot 90.7°F (32.6°C). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature', 'felt air temperature', 'real feel', or 'feels like', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. Additional factors like activity, differences in body mass, height, and shape, pregnancy, and clothing affect individual temperature impact. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.

Humidity

The average relative humidity in June is 48%.

Rainfall

In June, the rain falls for 0.9 days. Throughout June, 0.12" (3mm) of precipitation is accumulated. Throughout the year, in Thornton, there are 63.8 rainfall days, and 12.6" (320mm) of precipitation is accumulated.

Snowfall

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

Daylight

The month with the longest days in Thornton is June, with an average of 14h and 47min of daylight.
On the first day of June, sunrise is at 5:43 am and sunset at 8:23 pm. On the last day of the month, sunrise is at 5:45 am and sunset at 8:33 pm PDT.

Sunshine

In June, the average sunshine is 11.8h.

UV index

June is the month with the highest UV index, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for average individuals.
Note: In June, the average maximum UV index of 7 translate into the following recommendations:
Take precautions against overexposure. Protection against sun damage is needed. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. 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.
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FAQ

What is the temperature in June in Thornton?

In Thornton, in June, the average high-temperature is 88.2°F (31.2°C), and the average low-temperature is 56.7°F (13.7°C). The average heat index (a.k.a. 'apparent temperature', 'feels like'), which factors the actual air temperature with the relative humidity, in June is calculated to be 90.7°F (32.6°C).

What is the average humidity in June in Thornton?

In June, the average relative humidity in Thornton, California, is 48%.

How much does it rain in Thornton in June?

In Thornton, California, during June, the rain falls for 0.9 days and regularly aggregates up to 0.12" (3mm) of precipitation.

When it does not snow in Thornton?

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

When are the longest days in Thornton?

The month with the longest days in Thornton, California, is June, with an average of 14h and 47min of daylight.

What is the average length of the day in June in Thornton?

In Thornton, California, the average day length in June is 14h and 47min.

When is the sunrise / sunset in June in Thornton?

In June, on the first day of the month, sunrise is at 5:43 am and sunset at 8:23 pm. On the last day of the month, in Thornton, sunrise is at 5:45 am and sunset at 8:33 pm PDT.

How many hours of sunshine does Thornton have in June?

In June, the average sunshine duration in Thornton, California, is 11.8h.

When is the highest UV index in Thornton?

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

What is the UV index reading in June in Thornton?

In Thornton, the average daily maximum UV index in June is 7. A UV Index estimate of 6 to 7 represents a high hazard to health from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in June
Thornton, CA

Average temperature in June - Thornton, CA
  • Average high temperature in June: 88.2°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 June: 56.7°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 June
Thornton, CA

Average pressure in June - Thornton, CA
  • Average pressure in June: 29.91"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 June
Thornton, CA

Average wind speed in June - Thornton, CA
  • Average wind speed in June: 5.8mph

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 June
Thornton, CA

Average humidity in June - Thornton, CA
  • Average humidity in June: 48%

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 June
Thornton, CA

Average rainfall in June - Thornton, CA
  • Average rainfall in June: 0.12"

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 June
Thornton, CA

Average rainfall days in June - Thornton, CA
  • Average rainfall days in June: 0.9 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 June
Thornton, CA

Average snowfall days in June - Thornton, CA
  • Average snowfall days in June: 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 June /
Average sunshine in June
Thornton, CA

Average daylight in June / Average sunshine in June - Thornton, CA
  • Average daylight in June: 14h and 47min

The month with the longest days is June (Average daylight: 14h and 47min).
The month with the shortest days is December (Average daylight: 9h and 34min).

  • Average sunshine in June: 11h and 48min

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 June
Thornton, CA

Average sunshine days in June - Thornton, CA
  • Average sunshine days in June: 28.5 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 June
Thornton, CA

Average UV index in June - Thornton, CA
  • Average UV index in June: 7

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 June
Thornton, CA

Average cloud cover in June - Thornton, CA
  • Average cloud cover in June: 10

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 June
Thornton, CA

Average visibility in June - Thornton, CA
  • Average visibility in June: 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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