June weather forecastMercer, PA
June
Weather in June
The first month of the summer, June, is a moderately hot month in Mercer, Pennsylvania, with temperature in the range of an average high of 76.3°F (24.6°C) and an average low of 55.4°F (13°C).Temperature
June showcases a minor temperature ascent, adjusting from May's pleasant 69.4°F (20.8°C) to a warm 76.3°F (24.6°C). In June, the average low-temperature in Mercer, Pennsylvania, records at a moderate 55.4°F (13°C) during the nights.Humidity
The average relative humidity in June is 80%.Rainfall
The months with the most rainfall are April and June, with an average 3.74" (95mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
The month with the longest days is June, with an average of 15h and 6min of daylight.On the first day of the month, sunrise is at 5:49 am and sunset at 8:47 pm. On the last day of June, sunrise is at 5:51 am and sunset at 8:57 pm EDT.
Sunshine
The average sunshine in June is 9.2h.UV index
May through August, with an average maximum UV index of 5, are months with the highest UV index. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for the average person.Note: A maximum daily UV index of 5 during June morphs into the following directions:
Ensure safety - Sun damage prevention is strongly urged. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in June
Mercer, PA
- Average high temperature in June: 76.3°F
The warmest month (with the highest average high temperature) is July (80.4°F).
The month with the lowest average high temperature is January (30.6°F).
- Average low temperature in June: 55.4°F
The month with the highest average low temperature is July (59.5°F).
The coldest month (with the lowest average low temperature) is January (18.3°F).
Average pressure in June
Mercer, 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
Mercer, PA
- Average wind speed in June: 6mph
The windiest month (with the highest average wind speed) is January (8.3mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).
Average humidity in June
Mercer, PA
- Average humidity in June: 80%
The month with the highest relative humidity is February (89%).
The months with the lowest relative humidity are April, May and July (79%).
Average rainfall in June
Mercer, PA
- Average rainfall in June: 3.74"
The wettest months (with the highest rainfall) are April and June (3.74").
The driest month (with the least rainfall) is November (2.2").
Average rainfall days in June
Mercer, PA
- Average rainfall days in June: 18.1 days
The month with the highest number of rainy days is May (20.9 days).
The month with the least rainy days is January (8.3 days).
Average snowfall in June
Mercer, PA
- Average snowfall in June: 0"
The month with the highest snowfall is January (8.27").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in June
Mercer, PA
- Average snowfall days in June: 0 days
The month with the highest number of snowfall days is January (19.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in June /
Average sunshine in June
Mercer, PA
- Average daylight in June: 15h and 6min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in June: 9h and 12min
The months with the most sunshine are July and August (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 2h and 24min).
Average sunshine days in June
Mercer, PA
- Average sunshine days in June: 9.3 days
The month with the most sunshine days is September (14 days).
The month with the least sunshine days is February (6.2 days).
Average UV index in June
Mercer, PA
- Average UV index in June: 5
The months with the highest UV index are May, June, July and August (UV index 5).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in June
Mercer, PA
- Average cloud cover in June: 42
The month with the most cloud cover is January (Cloud cover 75).
The month with the least cloud cover is August (Cloud cover 36).
Average visibility in June
Mercer, PA
- Average visibility in June: 5mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (5mi).
The months with the lowest visibility are January, February and December (4mi).





