June weather forecastCornwell, PA
June
Weather in June
The first month of the summer, June, is a warm month in Cornwell, Pennsylvania, with an average temperature ranging between min 62.8°F (17.1°C) and max 80.2°F (26.8°C).Temperature
With the onset of June, Cornwell's average high-temperature sees a modest rise, moving from May's agreeable 71.8°F (22.1°C) to a warm 80.2°F (26.8°C). In Cornwell, the average low-temperature during the month of June is a comfortable 62.8°F (17.1°C).Humidity
In Cornwell, the average relative humidity in June is 74%.Rainfall
In Cornwell, Pennsylvania, during June, the rain falls for 17.2 days and regularly aggregates up to 2.68" (68mm) of precipitation. In Cornwell, during the entire year, the rain falls for 153.8 days and collects up to 30.94" (786mm) of precipitation.Snowfall
June through October are months without snowfall.Daylight
June has the longest days of the year in Cornwell, with an average of 15h and 0min of daylight.On the first day of June, sunrise is at 5:32 am and sunset at 8:23 pm. On the last day of the month, sunrise is at 5:34 am and sunset at 8:33 pm EDT.
Sunshine
The average sunshine in June is 9.8h.UV index
May through August, with an average maximum UV index of 6, are months with the highest UV index in Cornwell. A UV Index of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: The maximum UV index of 6 during June leads to these instructions:
Evade overexposure. Individuals with fair skin risk burning in under 20 minutes. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in June
Cornwell, PA
- Average high temperature in June: 80.2°F
The warmest month (with the highest average high temperature) is July (86.4°F).
The month with the lowest average high temperature is January (37.4°F).
- Average low temperature in June: 62.8°F
The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (25.2°F).
Average pressure in June
Cornwell, PA
- Average pressure in June: 29.93"Hg
The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in June
Cornwell, PA
- Average wind speed in June: 6.4mph
The windiest months (with the highest average wind speed) are March and April (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).
Average humidity in June
Cornwell, PA
- Average humidity in June: 74%
The months with the highest relative humidity are February and October (77%).
The months with the lowest relative humidity are April, July and August (71%).
Average rainfall in June
Cornwell, PA
- Average rainfall in June: 2.68"
The wettest month (with the highest rainfall) is July (3.39").
The driest month (with the least rainfall) is January (1.89").
Average rainfall days in June
Cornwell, PA
- Average rainfall days in June: 17.2 days
The month with the highest number of rainy days is July (18.5 days).
The month with the least rainy days is November (7.5 days).
Average snowfall in June
Cornwell, PA
- Average snowfall in June: 0"
The month with the highest snowfall is March (2.76").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in June
Cornwell, 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, September and October (0 days).
Average daylight in June /
Average sunshine in June
Cornwell, 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 30min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in June
Cornwell, PA
- Average sunshine days in June: 11.4 days
The month with the most sunshine days is November (21.2 days).
The month with the least sunshine days is July (10.4 days).
Average UV index in June
Cornwell, 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
Cornwell, PA
- Average cloud cover in June: 37
The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 33).
Average visibility in June
Cornwell, 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).





