June weather forecastExton, PA
June
Weather in June
June's arrival marks the official commencement of summer in Exton, elevating temperature levels up to 79°F (26.1°C) from a base of 61.5°F (16.4°C). Coupled with the year's lengthiest days, the month also brings one of the highest rainfall averages at 1.46" (37mm). The advent of summer implies longer days, extended sunshine hours, and infrequent summer showers. Contributing to an enjoyable mild climate, the month exhibits relatively low cloudiness levels. On the whole, June is suitable for outdoor activities, although occasional thunderstorms may warrant precaution.Temperature
The start of June brings a subtle shift in the average high-temperature, edging up from May's agreeable 71.1°F (21.7°C) to a moderately hot 79°F (26.1°C). June nights experience a consistent temperature drop to a comfortable 61.5°F (16.4°C).Humidity
In Exton, the average relative humidity in June is 76%.Rainfall
In Exton, in June, it is raining for 14.3 days, with typically 1.46" (37mm) of accumulated precipitation. In Exton, during the entire year, the rain falls for 124.6 days and collects up to 14.25" (362mm) of precipitation.Snowfall
In Exton, snow does not fall in June through October.Daylight
With an average of 15h and 0min of daylight, June has the longest days of the year.On the first day of June, sunrise is at 5:35 am and sunset at 8:25 pm. On the last day of the month, sunrise is at 5:37 am and sunset at 8:35 pm EDT.
Sunshine
The average sunshine in June is 9.5h.UV index
The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: In June, the average maximum UV index of 6 translates into the following recommendations:
Dodge overexposure. Fair-skinned people can get singed in less than 20 minutes. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in June
Exton, PA
- Average high temperature in June: 79°F
The warmest month (with the highest average high temperature) is July (84.9°F).
The month with the lowest average high temperature is January (36.1°F).
- Average low temperature in June: 61.5°F
The month with the highest average low temperature is July (67.5°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).
Average pressure in June
Exton, PA
- Average pressure in June: 29.94"Hg
The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in June
Exton, PA
- Average wind speed in June: 6.2mph
The windiest month (with the highest average wind speed) is March (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in June
Exton, PA
- Average humidity in June: 76%
The months with the highest relative humidity are February and October (79%).
The months with the lowest relative humidity are April and July (73%).
Average rainfall in June
Exton, PA
- Average rainfall in June: 1.46"
The wettest month (with the highest rainfall) is August (1.89").
The driest month (with the least rainfall) is January (0.79").
Average rainfall days in June
Exton, PA
- Average rainfall days in June: 14.3 days
The month with the highest number of rainy days is July (15.1 days).
The month with the least rainy days is January (5 days).
Average snowfall in June
Exton, PA
- Average snowfall in June: 0"
The month with the highest snowfall is March (1.57").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in June
Exton, PA
- Average snowfall days in June: 0 days
The month with the highest number of snowfall days is January (5.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in June /
Average sunshine in June
Exton, PA
- Average daylight in June: 15h and 0min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in June: 9h and 30min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days in June
Exton, PA
- Average sunshine days in June: 13.3 days
The month with the most sunshine days is November (21.7 days).
The month with the least sunshine days is June (13.3 days).
Average UV index in June
Exton, PA
- Average UV index in June: 6
The months with the highest UV index are May, 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
Exton, PA
- Average cloud cover in June: 38
The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is July (Cloud cover 33).
Average visibility in June
Exton, PA
- Average visibility in June: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are May and September (5mi).





