June weather forecast
Westmont, CA

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Weather in June

The first month of the summer, June, is a moderately hot month in Westmont, California, with temperature in the range of an average low of 59.4°F (15.2°C) and an average high of 73.4°F (23°C).

Temperature

June notes an average high-temperature of a warm 73.4°F (23°C), subtly differing from May's 70.3°F (21.3°C). An average nighttime temperature of 59.4°F (15.2°C) is observed during June.

Humidity

With an average relative humidity of 70%, June is the most humid month.

Rainfall

June is the month with the least rainfall in Westmont, California. Rain falls for 1.7 days and accumulates 0.08" (2mm) of precipitation.

Daylight

June has the longest days of the year, with an average of 14h and 24min of daylight.
On the first day of June, sunrise is at 5:42 am and sunset at 7:59 pm. On the last day of the month, sunrise is at 5:45 am and sunset at 8:08 pm PDT.

Sunshine

The average sunshine in June is 11.6h.

UV index

The months with the highest UV index are June through September, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for the average person.
Note: In June, the UV index of 6 transforms into the following advice:
Resist extreme sun exposure. Guarding against solar damage is essential. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.
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Frequently asked questions

What is the usual temperature for Westmont in June?

An average high-temperature, in June, in Westmont, is 73.4°F (23°C) and the average low-temperature is 59.4°F (15.2°C).

What is the most humid month in Westmont?

With an average relative humidity of 70%, June is the most humid month in Westmont, California.

What is the average humidity in June in Westmont?

The average relative humidity in June in Westmont, California, is 70%.

What is the driest month in Westmont?

The month with the least rainfall is June, when the rain falls for 1.7 days and typically collects 0.08" (2mm) of precipitation.

How many days does it rain in June in Westmont?

In Westmont, California, in June, it is raining for 1.7 days, with typically 0.08" (2mm) of accumulated precipitation.

When are the longest days in Westmont?

The month with the longest days is June, with an average of 14h and 24min of daylight.

How many hours of daylight does Westmont have in June?

The average day length in June is 14h and 23min.

What time are sunrise and sunset in June in Westmont?

In June, on the first day of the month, sunrise is at 5:42 am and sunset at 7:59 pm. On the last day of the month, in Westmont, sunrise is at 5:45 am and sunset at 8:08 pm PDT.

How long on average sun shines in June in Westmont?

In June, the average sunshine duration in Westmont is 11.6h.

What are the months with the highest UV index in Westmont?

The months with the highest UV index in Westmont, California, are June through September, with an average maximum UV index of 6.

What is the UV index reading in June in Westmont?

The average daily maximum UV index in June in Westmont, California, is 6. A UV Index estimate of 6 to 7 represents a high health threat from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in June
Westmont, CA

Average temperature in June - Westmont, CA
  • Average high temperature in June: 73.4°F

The warmest month (with the highest average high temperature) is August (80.2°F).
The month with the lowest average high temperature is December (64°F).

  • Average low temperature in June: 59.4°F

The month with the highest average low temperature is August (64.9°F).
The coldest month (with the lowest average low temperature) is February (51.1°F).

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Average pressure in June
Westmont, CA

Average pressure in June - Westmont, CA
  • Average pressure in June: 29.89"Hg

The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).

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Average wind speed in June
Westmont, CA

Average wind speed in June - Westmont, CA
  • Average wind speed in June: 5.4mph

The windiest month (with the highest average wind speed) is April (6.4mph).
The calmest month (with the lowest average wind speed) is September (4.9mph).

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Average humidity in June
Westmont, CA

Average humidity in June - Westmont, CA
  • Average humidity in June: 70%

The month with the highest relative humidity is June (70%).
The month with the lowest relative humidity is November (54%).

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Average rainfall in June
Westmont, CA

Average rainfall in June - Westmont, CA
  • Average rainfall in June: 0.08"

The wettest month (with the highest rainfall) is January (1.42").
The driest month (with the least rainfall) is June (0.08").

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Average rainfall days in June
Westmont, CA

Average rainfall days in June - Westmont, CA
  • Average rainfall days in June: 1.7 days

The month with the highest number of rainy days is March (6.5 days).
The month with the least rainy days is June (1.7 days).

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Average daylight in June /
Average sunshine in June
Westmont, CA

Average daylight in June / Average sunshine in June - Westmont, CA
  • Average daylight in June: 14h and 2min

The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).

  • Average sunshine in June: 11h and 4min

The months with the most sunshine are July and August (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).

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Average sunshine days in June
Westmont, CA

Average sunshine days in June - Westmont, CA
  • Average sunshine days in June: 21.4 days

The month with the most sunshine days is October (25.5 days).
The month with the least sunshine days is June (21.4 days).

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Average UV index in June
Westmont, CA

Average UV index in June - Westmont, CA
  • Average UV index in June: 6

The months with the highest UV index are June, July, August and September (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 4).

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Average cloud cover in June
Westmont, CA

Average cloud cover in June - Westmont, CA
  • Average cloud cover in June: 16

The months with the most cloud cover are March and December (Cloud cover 22).
The month with the least cloud cover is August (Cloud cover 7).

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Average visibility in June
Westmont, CA

Average visibility in June - Westmont, 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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Westmont, California, USA

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