June weather forecastCornwall, PA
June
Weather in June
June, the first month of the summer in Cornwall, is a moderately hot month, with an average temperature fluctuating between 76.6°F (24.8°C) and 58.6°F (14.8°C).Temperature
Cornwall's transition into June sees a mild rise in the average high-temperature, edging from an agreeable 68.7°F (20.4°C) in May to a moderately hot 76.6°F (24.8°C). The low-temperature average for Cornwall during June stands at a moderate 58.6°F (14.8°C).Humidity
In Cornwall, the average relative humidity in June is 80%.Rainfall
In June, the rain falls for 14.8 days. Throughout June, 1.38" (35mm) of precipitation is accumulated. Throughout the year, there are 137.4 rainfall days, and 16.26" (413mm) of precipitation is accumulated.Snowfall
In Cornwall, snow does not fall in June through September.Daylight
The month with the longest days is June, with an average of 15h and 0min of daylight.On the first day of the month, sunrise is at 5:37 am and sunset at 8:29 pm. On the last day of June, sunrise is at 5:39 am and sunset at 8:39 pm EDT.
Sunshine
In Cornwall, the average sunshine in June is 9.8h.UV index
May through July, with an average maximum UV index of 6, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: The average daily UV index of 6 in June transforms into the following instructions:
Shun overexposure. Protection from sun ravages is indispensable. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in June
Cornwall, PA
- Average high temperature in June: 76.6°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (33.8°F).
- Average low temperature in June: 58.6°F
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).
Average pressure in June
Cornwall, PA
- Average pressure in June: 29.94"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in June
Cornwall, PA
- Average wind speed in June: 6.1mph
The windiest month (with the highest average wind speed) is March (8.8mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in June
Cornwall, PA
- Average humidity in June: 80%
The months with the highest relative humidity are February, May and October (81%).
The month with the lowest relative humidity is April (76%).
Average rainfall in June
Cornwall, PA
- Average rainfall in June: 1.38"
The wettest month (with the highest rainfall) is August (2.13").
The driest month (with the least rainfall) is February (0.94").
Average rainfall days in June
Cornwall, PA
- Average rainfall days in June: 14.8 days
The month with the highest number of rainy days is May (15.9 days).
The month with the least rainy days is January (6.7 days).
Average snowfall in June
Cornwall, PA
- Average snowfall in June: 0"
The month with the highest snowfall is January (1.97").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in June
Cornwall, PA
- Average snowfall days in June: 0 days
The month with the highest number of snowfall days is January (5.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in June /
Average sunshine in June
Cornwall, 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 48min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days in June
Cornwall, PA
- Average sunshine days in June: 12.3 days
The month with the most sunshine days is January (20.3 days).
The month with the least sunshine days is May (11.5 days).
Average UV index in June
Cornwall, PA
- Average UV index in June: 6
The months with the highest UV index are May, June and July (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
Cornwall, PA
- Average cloud cover in June: 36
The months with the most cloud cover are February and December (Cloud cover 51).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in June
Cornwall, PA
- Average visibility in June: 6mi
The months with the highest visibility are January, February, March, April, June, July, November and December (6mi).
The months with the lowest visibility are May, August, September and October (5mi).





