June weather forecast
Connecticut, USA

June marks the beginning of summer in Connecticut, with temperatures climbing and the state experiencing the full effect of the Bermuda High. The weather becomes hot, and the sun shines for longer durations, contributing to an average annual sunshine of 2500 hours.

Average high temperatures reach 85°F (29.4°C), especially in southern and coastal areas. Northern regions may experience slightly lower temperatures, but the warmth is felt across the state. Heatwaves occasionally push temperatures even higher, indicative of the peak summer season.

Rainfall remains within the annual range of 44" (1118mm) to 48" (1219mm), with thunderstorms becoming more common. These storms can be intense, often accompanied by lightning and thunder, but they are typically short-lived.

Humidity starts to rise, particularly in late June, though it is not yet at its highest levels. This increase in humidity adds to the overall sensation of warmth and can make the weather feel more oppressive, particularly during heatwaves.

June's weather in Connecticut reflects a definitive shift into summer, with consistently warm temperatures, increased sunshine, and the emergence of summer thunderstorms. The state's various regions experience more uniform weather, though slight variations may still be present. As the month progresses, the weather continues to heat up, leading into the peak summer conditions of July and August. The shift from the pleasant warmth of May to the more intense heat of June is notable, fully embracing the characteristics of a New England summer.

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• Hartford - June »
  The wettest months are June and July, with an average 1.06" (27mm) of rainfall. In Hartford, snow does not fall in June through October.
• New Haven - June »
  In New Haven in June, during 16.7 rainfall days, 2.95" (75mm) of precipitation is typically accumulated. In June, the meteorological conditions in New Haven subtly change with the average high-temperature edging from a comfortable 65.1°F (18.4°C) in May to a moderately hot 73.9°F (23.3°C).
• Stamford - June »
  In Stamford, during June, the rain falls for 17 days and regularly aggregates up to 3.27" (83mm) of precipitation. With an average of 15h and 6min of daylight, June has the longest days of the year in Stamford.
• Bridgeport - June »
  June through August, with an average maximum UV index of 6, are months with the highest UV index in Bridgeport, Connecticut. In Bridgeport the average seawater temperature in June is 63.1°F (17.3°C).
• Waterbury - June »
  The month with the longest days in Waterbury is June, with an average of 15h and 6min of daylight. In Waterbury, during June, the rain falls for 16.9 days and regularly aggregates up to 3.03" (77mm) of precipitation.
• Norwalk - June »
  In Norwalk, Connecticut, during June, the rain falls for 17.3 days and regularly aggregates up to 3.27" (83mm) of precipitation. June has the longest days of the year in Norwalk with an average of 15h and 6min of daylight.
• Danbury - June »
  In Danbury in June, during 14.2 rainfall days, 1.3" (33mm) of precipitation is typically accumulated. June has the longest days of the year in Danbury, with an average of 15h and 6min of daylight.
• New Britain - June »
  In New Britain in June, it is raining for 17.3 days, with typically 2.95" (75mm) of accumulated precipitation. June has the longest days of the year in New Britain with an average of 15h and 12min of daylight.
• Bristol - June »
  June welcomes summer in Bristol pushing temperatures further upward and bringing the maximum daylight hours of 15.2. With an average of 15h and 12min of daylight, June has the longest days of the year in Bristol, Connecticut.
• Meriden - June »
  In Meriden during June, the rain falls for 17.2 days and regularly aggregates up to 3.03" (77mm) of precipitation. June has the longest days of the year in Meriden, with an average of 15h and 6min of daylight.
• Milford - June »
  In Milford in June, during 17 rainfall days, 3.07" (78mm) of precipitation is typically accumulated. June has the longest days of the year in Milford, with an average of 15h and 6min of daylight.
• West Haven - June »
  The months with the highest humidity in West Haven, Connecticut, are February, May and June, with an average relative humidity of 76%. The month with the longest days in West Haven is June, with an average of 15h and 6min of daylight.