June weather forecastRockville, CT
June
Weather in June
June, the first month of the summer in Rockville, is a moderately hot month, with an average temperature varying between 55.6°F (13.1°C) and 75.7°F (24.3°C).Temperature
In June, the meteorological conditions subtly change with the average high-temperature edging from a pleasant 68.4°F (20.2°C) in May to a warm 75.7°F (24.3°C). The temperature dips to an average of 55.6°F (13.1°C) during June nights.Humidity
The average relative humidity in June in Rockville is 76%.Rainfall
The wettest months are May through July, with an average 1.1" (28mm) of rainfall.Snowfall
In Rockville, 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 5:16 am and sunset at 8:18 pm. On the last day of June, in Rockville, sunrise is at 5:18 am and sunset at 8:28 pm EDT.
Sunshine
In June, the average sunshine is 9.2h.UV index
June through August, with an average maximum UV index of 6, are months with the highest UV index in Rockville. A UV Index estimate of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for the average person.Note: The daily high UV index of 6 in June translates into this advice:
Guard against overexposure. Protection from sun-induced harm is essential. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in June
Rockville, CT
- Average high temperature in June: 75.7°F
The warmest month (with the highest average high temperature) is July (82.2°F).
The month with the lowest average high temperature is January (32.4°F).
- Average low temperature in June: 55.6°F
The month with the highest average low temperature is July (62.6°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).
Average pressure in June
Rockville, CT
- Average pressure in June: 29.93"Hg
The month with the highest atmospheric pressure is November (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in June
Rockville, CT
- Average wind speed in June: 5.8mph
The windiest months (with the highest average wind speed) are January and March (8.2mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in June
Rockville, CT
- Average humidity in June: 76%
The month with the highest relative humidity is February (80%).
The month with the lowest relative humidity is April (71%).
Average rainfall in June
Rockville, CT
- Average rainfall in June: 1.1"
The wettest months (with the highest rainfall) are May, June and July (1.1").
The driest month (with the least rainfall) is September (0.39").
Average rainfall days in June
Rockville, CT
- Average rainfall days in June: 12.1 days
The month with the highest number of rainy days is June (12.1 days).
The months with the least rainy days are January and February (5.5 days).
Average snowfall in June
Rockville, CT
- Average snowfall in June: 0"
The month with the highest snowfall is February (1.5").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in June
Rockville, CT
- Average snowfall days in June: 0 days
The month with the highest number of snowfall days is February (6.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in June /
Average sunshine in June
Rockville, CT
- 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 12min).
- Average sunshine in June: 9h and 12min
The months with the most sunshine are July and August (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in June
Rockville, CT
- Average sunshine days in June: 15.7 days
The month with the most sunshine days is January (21.9 days).
The month with the least sunshine days is June (15.7 days).
Average UV index in June
Rockville, CT
- 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
Rockville, CT
- Average cloud cover in June: 42
The months with the most cloud cover are February and March (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in June
Rockville, CT
- Average visibility in June: 5mi
The months with the highest visibility are January, March, April, October, November and December (6mi).
The months with the lowest visibility are February, May, June, July, August and September (5mi).





