June weather forecastChester, PA
June
Weather in June
The arrival of June marks the beginning of summer in Chester, Pennsylvania. The weather is reliably warm, with the longest daylight hours throughout the year. However, this month sees the most amounts of rainfall at 2.28" (58mm), but it comes with an increased amount of sunshine per day. With the lush landscapes and consistent weather, June sets the stage for the peak of summer activities.Temperature
The shift into June in Chester is characterized by a subtle rise in the average high-temperature, transitioning from May's agreeable 72°F (22.2°C) to a warm 79.7°F (26.5°C). Nighttime temperature experiences an average drop to a refreshing 63.1°F (17.3°C) in June.Humidity
In June, the average relative humidity is 75%.Rainfall
In Chester, in June, it is raining for 15.4 days, with typically 2.28" (58mm) of accumulated precipitation. Throughout the year, there are 148.4 rainfall days, and 25.94" (659mm) of precipitation is accumulated.Snowfall
June through October are months without snowfall.Daylight
With an average of 15h and 0min of daylight, June has the longest days of the year in Chester.On the first day of the month, sunrise is at 5:34 am and sunset at 8:24 pm. On the last day of June, sunrise is at 5:36 am and sunset at 8:33 pm EDT.
Sunshine
In June, the average sunshine in Chester is 10.1h.UV index
The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for the average person.Note: The UV index of 6 during June leads to these advisories:
Sidestep overexposure. Individuals with fair complexions risk burning in fewer than 20 minutes. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in June
Chester, PA
- Average high temperature in June: 79.7°F
The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (37.4°F).
- Average low temperature in June: 63.1°F
The month with the highest average low temperature is July (68.7°F).
The coldest month (with the lowest average low temperature) is January (25.7°F).
Average pressure in June
Chester, 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
Chester, PA
- Average wind speed in June: 6.3mph
The windiest month (with the highest average wind speed) is March (8.6mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).
Average humidity in June
Chester, PA
- Average humidity in June: 75%
The months with the highest relative humidity are February, October and December (77%).
The month with the lowest relative humidity is April (71%).
Average rainfall in June
Chester, PA
- Average rainfall in June: 2.28"
The wettest month (with the highest rainfall) is August (3.11").
The driest month (with the least rainfall) is January (1.61").
Average rainfall days in June
Chester, PA
- Average rainfall days in June: 15.4 days
The month with the highest number of rainy days is July (17 days).
The month with the least rainy days is January (7.1 days).
Average snowfall in June
Chester, PA
- Average snowfall in June: 0"
The month with the highest snowfall is March (2.32").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in June
Chester, PA
- Average snowfall days in June: 0 days
The month with the highest number of snowfall days is February (3.8 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in June /
Average sunshine in June
Chester, 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: 10h and 6min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).
Average sunshine days in June
Chester, PA
- Average sunshine days in June: 12.5 days
The month with the most sunshine days is January (20.8 days).
The month with the least sunshine days is July (11.3 days).
Average UV index in June
Chester, 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, November and December (UV index 2).
Average cloud cover in June
Chester, PA
- Average cloud cover in June: 36
The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility in June
Chester, PA
- 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).





