June weather forecastCharlestown, MA
June
Weather in June
June, the first month of the summer in Charlestown, is a moderately hot month, with an average temperature ranging between max 74.5°F (23.6°C) and min 57.4°F (14.1°C).Temperature
In June, the average high-temperature marginally rises from an enjoyable 66.7°F (19.3°C) in May to a moderately hot 74.5°F (23.6°C). Charlestown, during the month of June, experiences an average low-temperature of 57.4°F (14.1°C).Humidity
In June, the average relative humidity is 74%.Rainfall
In Charlestown, in June, during 4.2 rainfall days, 0.35" (9mm) of precipitation is typically accumulated. Throughout the year, in Charlestown, there are 47.8 rainfall days, and 4.13" (105mm) of precipitation is accumulated.Snowfall
In Charlestown, snow does not fall in June through October.Daylight
With an average of 15h and 12min of daylight, June has the longest days of the year.On the first day of the month, sunrise is at 5:09 am and sunset at 8:14 pm. On the last day of June, in Charlestown, sunrise is at 5:11 am and sunset at 8:25 pm EDT.
Sunshine
In Charlestown, the average sunshine in June is 9.2h.UV index
The months with the highest UV index in Charlestown are June through August, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for average individuals.Note: In June, the average maximum UV index of 6 translates into the following recommendations:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in June
Charlestown, MA
- Average high temperature in June: 74.5°F
The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is January (33.8°F).
- Average low temperature in June: 57.4°F
The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (22.5°F).
Average pressure in June
Charlestown, MA
- Average pressure in June: 29.93"Hg
The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in June
Charlestown, MA
- Average wind speed in June: 6.6mph
The windiest month (with the highest average wind speed) is January (9.6mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity in June
Charlestown, MA
- Average humidity in June: 74%
The month with the highest relative humidity is February (78%).
The month with the lowest relative humidity is April (69%).
Average rainfall in June
Charlestown, MA
- Average rainfall in June: 0.35"
The wettest month (with the highest rainfall) is November (0.55").
The driest month (with the least rainfall) is September (0.12").
Average rainfall days in June
Charlestown, MA
- Average rainfall days in June: 4.2 days
The month with the highest number of rainy days is April (5.9 days).
The months with the least rainy days are January and September (2.9 days).
Average snowfall in June
Charlestown, MA
- Average snowfall in June: 0"
The month with the highest snowfall is December (0.71").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in June
Charlestown, MA
- Average snowfall days in June: 0 days
The month with the highest number of snowfall days is January (3.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in June /
Average sunshine in June
Charlestown, MA
- Average daylight in June: 15h and 12min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in June: 9h and 12min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in June
Charlestown, MA
- Average sunshine days in June: 23.4 days
The month with the most sunshine days is December (25.5 days).
The month with the least sunshine days is July (22.8 days).
Average UV index in June
Charlestown, MA
- Average UV index in June: 6
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in June
Charlestown, MA
- Average cloud cover in June: 41
The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in June
Charlestown, MA
- 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).





