Contents
- Weather in June
- Frequently asked questions
- Average temperature in June
- Average pressure in June
- Average wind speed in June
- Average humidity in June
- Average rainfall in June
- Average rainfall days in June
- Average snowfall in June
- Average snowfall days in June
- Average daylight in June
- Average sunshine in June
- Average sunshine days in June
- Average UV index in June
- Average cloud cover in June
- Average visibility in June
Weather in June
Temperature
June's onset brings a rise in the average high-temperature, moving from a moderate 60.6°F (15.9°C) in May to a pleasant 72.7°F (22.6°C). Portola records a consistent low-temperature average of 42.1°F (5.6°C) during June, indicating a significant difference from the daytime heat.Humidity
In Portola, the average relative humidity in June is 50%.Rainfall
In Portola, during June, the rain falls for 5.3 days and regularly aggregates up to 0.43" (11mm) of precipitation. Throughout the year, there are 80.1 rainfall days, and 22.95" (583mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through June, September through December. June is the last month it regularly snows. During 0.5 snowfall days, in June, Portola aggregates 0.28" (7mm) of snow. In Portola, during the entire year, snow falls for 69.3 days and aggregates up to 103.5" (2629mm) of snow.Daylight
June has the longest days of the year, with an average of 14h and 54min of daylight.On the first day of June, sunrise is at 5:35 am and sunset at 8:24 pm. On the last day of the month, sunrise is at 5:37 am and sunset at 8:34 pm PDT.
Sunshine
In Portola, the average sunshine in June is 11.7h.UV index
The months with the highest UV index are June through August, with an average maximum UV index of 5. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for average individuals.Note: The maximum daily UV index of 5 in June converts into the following recommendations:
Act with care - Obligation to protect against skin and eye damage is highlighted. Around midday, solar radiation is most harmful; hence, exposure should be limited. 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. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in June?
What is the average humidity in June?
How much does it rain in June?
What is the last month it snows?
When are the longest days?
How many hours of daylight does Portola have in June?
When is the sunrise / sunset in June?
How long on average sun shines in June?
What are the months with the highest UV index?
What is the UV index reading in June?
Average temperature in June
Portola, CA
- Average high temperature in June: 72.7°F
The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is December (37.2°F).
- Average low temperature in June: 42.1°F
The month with the highest average low temperature is July (47.5°F).
The coldest month (with the lowest average low temperature) is December (21.6°F).
Average pressure in June
Portola, CA
- Average pressure in June: 29.9"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in June
Portola, CA
- Average wind speed in June: 5.9mph
The windiest month (with the highest average wind speed) is March (6.6mph).
The calmest months (with the lowest average wind speed) are August and September (5.2mph).
Average humidity in June
Portola, CA
- Average humidity in June: 50%
The months with the highest relative humidity are January and March (81%).
The months with the lowest relative humidity are July and August (40%).
Average rainfall in June
Portola, CA
- Average rainfall in June: 0.43"
The wettest month (with the highest rainfall) is March (4.02").
The driest month (with the least rainfall) is August (0.2").
Average rainfall days in June
Portola, CA
- Average rainfall days in June: 5.3 days
The month with the highest number of rainy days is May (11.8 days).
The month with the least rainy days is July (3.3 days).
Average snowfall in June
Portola, CA
- Average snowfall in June: 0.28"
The month with the highest snowfall is December (22.52").
The months with the least snowfall are July and August (0").
Average snowfall days in June
Portola, CA
- Average snowfall days in June: 0.5 days
The month with the highest number of snowfall days is March (14.7 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in June /
Average sunshine in June
Portola, CA
- Average daylight in June: 14h and 5min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in June: 11h and 4min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 5h and 0min).
Average sunshine days in June
Portola, CA
- Average sunshine days in June: 23.7 days
The month with the most sunshine days is August (26 days).
The month with the least sunshine days is March (11.8 days).
Average UV index in June
Portola, CA
- Average UV index in June: 5
The months with the highest UV index are June, July and August (UV index 5).
The month with the lowest UV index is November (UV index 1).
Average cloud cover in June
Portola, CA
- Average cloud cover in June: 14
The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 7).
Average visibility in June
Portola, CA
- Average visibility in June: 6mi
The months with the highest visibility are May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and December (4mi).
Portola, California, USA
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