June weather forecastAtherton, CA
June
Weather in June
The first month of the summer, June, is an agreeable month in Atherton, California, with temperature in the range of an average high of 70.3°F (21.3°C) and an average low of 53.2°F (11.8°C).Temperature
Atherton transitions into June recording an average high-temperature of a pleasant 70.3°F (21.3°C), closely aligning with the preceding month's temperature. Nighttime temperature dips to a mean of 53.2°F (11.8°C) during June.Humidity
In Atherton, the average relative humidity in June is 71%.Rainfall
In Atherton, in June, during 1.8 rainfall days, 0.12" (3mm) of precipitation is typically accumulated. Throughout the year, there are 73.4 rainfall days, and 11.89" (302mm) of precipitation is accumulated.Daylight
The month with the longest days is June, with an average of 14h and 42min of daylight.On the first day of June, sunrise is at 5:49 am and sunset at 8:24 pm. On the last day of the month, sunrise is at 5:51 am and sunset at 8:33 pm PDT.
Sunshine
In June, the average sunshine is 11.7h.UV index
The months with the highest UV index are June through September, with an average maximum UV index of 5. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the average person.Note: In June, the average maximum UV index of 5 translates into the following recommendations:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in June
Atherton, CA
- Average high temperature in June: 70.3°F
The warmest months (with the highest average high temperature) are July and August (73°F).
The month with the lowest average high temperature is December (55.9°F).
- Average low temperature in June: 53.2°F
The month with the highest average low temperature is September (56.7°F).
The coldest month (with the lowest average low temperature) is February (46°F).
Average pressure in June
Atherton, CA
- Average pressure in June: 29.93"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is September (29.92"Hg).
Average wind speed in June
Atherton, CA
- Average wind speed in June: 6.8mph
The windiest month (with the highest average wind speed) is April (7.5mph).
The calmest months (with the lowest average wind speed) are August, September and October (5.5mph).
Average humidity in June
Atherton, CA
- Average humidity in June: 71%
The month with the highest relative humidity is March (75%).
The month with the lowest relative humidity is October (68%).
Average rainfall in June
Atherton, CA
- Average rainfall in June: 0.12"
The wettest month (with the highest rainfall) is February (2.36").
The driest months (with the least rainfall) are July and August (0.04").
Average rainfall days in June
Atherton, CA
- Average rainfall days in June: 1.8 days
The month with the highest number of rainy days is March (12.8 days).
The month with the least rainy days is August (0.8 days).
Average daylight in June /
Average sunshine in June
Atherton, CA
- Average daylight in June: 14h and 42min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in June: 11h and 42min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 48min).
Average sunshine days in June
Atherton, CA
- Average sunshine days in June: 26.3 days
The month with the most sunshine days is August (27.6 days).
The month with the least sunshine days is March (17.5 days).
Average UV index in June
Atherton, CA
- Average UV index in June: 5
The months with the highest UV index are June, July, August and September (UV index 5).
The months with the lowest UV index are November and December (UV index 3).
Average cloud cover in June
Atherton, CA
- Average cloud cover in June: 14
The month with the most cloud cover is March (Cloud cover 35).
The month with the least cloud cover is July (Cloud cover 9).
Average visibility in June
Atherton, 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).
