June weather forecastActon, CA
June
Weather in June
The first month of the summer, June, is still a warm month in Acton, California, with an average temperature varying between 83.3°F (28.5°C) and 56.5°F (13.6°C).Temperature
The beginning of June signals a rise in the average high-temperature, moving from a warm 74.1°F (23.4°C) in May to a still moderately hot 83.3°F (28.5°C). A steep decline to a moderate 56.5°F (13.6°C) characterizes the June nights.Heat index
The heat index value for June is appraised at 84.2°F (29°C). Enduring exposure and continuous activity might cause a feeling of tiredness and induce heat cramps.Metrics for the heat index primarily focus on shaded spots and light wind conditions. Heat index values might soar by up to 15 Fahrenheit (8 Celsius) degrees with exposure to direct sunshine.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is found by incorporating humidity levels into the air temperature measurement. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. With the sun shining directly, it's crucial to understand that it can increase the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Kids are generally in more danger than adults because they perspire less. Their large skin surface area compared to their small bodies and the excessive heat due to their actions raises their risk.
Humidity
The average relative humidity in June is 46%.Rainfall
The month with the least rainfall in Acton, California, is June, when the rain falls for 1.2 days and typically collects 0.04" (1mm) of precipitation.Snowfall
May through October are months without snowfall.Daylight
The month with the longest days is June, with an average of 14h and 24min of daylight.On the first day of June, sunrise is at 5:41 am and sunset at 8:00 pm. On the last day of the month, sunrise is at 5:43 am and sunset at 8:09 pm PDT.
Sunshine
In June, the average sunshine in Acton is 12h.UV index
The months with the highest UV index in Acton are June through September, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum UV index of 6 during June leads to these instructions:
Steer clear of overexposure. Fair-skinned individuals can be scorched in less than 20 minutes. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in June
Acton, CA
- Average high temperature in June: 83.3°F
The warmest month (with the highest average high temperature) is August (89.2°F).
The month with the lowest average high temperature is December (55.6°F).
- Average low temperature in June: 56.5°F
The month with the highest average low temperature is August (63.1°F).
The coldest month (with the lowest average low temperature) is December (39.2°F).
Average pressure in June
Acton, CA
- Average pressure in June: 29.87"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in June
Acton, CA
- Average wind speed in June: 6.8mph
The windiest month (with the highest average wind speed) is April (7.6mph).
The calmest month (with the lowest average wind speed) is September (5.7mph).
Average humidity in June
Acton, CA
- Average humidity in June: 46%
The months with the highest relative humidity are February, March and December (54%).
The month with the lowest relative humidity is August (38%).
Average rainfall in June
Acton, CA
- Average rainfall in June: 0.04"
The wettest month (with the highest rainfall) is December (1.65").
The driest month (with the least rainfall) is June (0.04").
Average rainfall days in June
Acton, CA
- Average rainfall days in June: 1.2 days
The month with the highest number of rainy days is March (7.4 days).
The month with the least rainy days is June (1.2 days).
Average snowfall in June
Acton, CA
- Average snowfall in June: 0"
The month with the highest snowfall is December (3.23").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in June
Acton, CA
- Average snowfall days in June: 0 days
The month with the highest number of snowfall days is February (0.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in June /
Average sunshine in June
Acton, 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: 12h and 0min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 6h and 42min).
Average sunshine days in June
Acton, CA
- Average sunshine days in June: 28.3 days
The month with the most sunshine days is June (28.3 days).
The month with the least sunshine days is February (21.3 days).
Average UV index in June
Acton, 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 3).
Average cloud cover in June
Acton, CA
- Average cloud cover in June: 7
The months with the most cloud cover are March and December (Cloud cover 24).
The month with the least cloud cover is August (Cloud cover 5).
Average visibility in June
Acton, 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).
