June weather forecastWestmont, CA
June
Weather in June
The first month of the summer, June, is a moderately hot month in Westmont, California, with an average temperature varying between 73.4°F (23°C) and 59.4°F (15.2°C).Temperature
As May turns into June, the average high-temperatures rest at a moderately hot 73.4°F (23°C), showing a minor variation from the prior month. In the month of June, the average low-temperature usually rests at a mild 59.4°F (15.2°C).Humidity
June is the most humid month, with an average relative humidity of 70%.Rainfall
June is the month with the least rainfall. Rain falls for 1.7 days and accumulates 0.08" (2mm) of precipitation.Daylight
With an average of 14h and 24min of daylight, June has the longest days of the year.On the first day of June in Westmont, 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
In June, the average sunshine is 11.6h.UV index
June through September, with an average maximum UV index of 6, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for average individuals.Note: The daily maximum UV index of 6 in June interprets into the following advice:
Avert overexposure. Light-skinned people might experience burning in less than 20 minutes. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
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).
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).
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).
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%).
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").
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).
Average daylight in June /
Average sunshine in June
Westmont, CA
- Average daylight in June: 14h and 24min
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 36min
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).
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).
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).
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).
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).
