June weather forecastSouth Sterling, PA
June
Weather in June
The first month of the summer, June, is a moderately hot month in South Sterling, Pennsylvania, with an average temperature varying between 54.5°F (12.5°C) and 74.3°F (23.5°C).Temperature
June brings a slight elevation in the average high-temperature, transitioning from May's enjoyable 66.7°F (19.3°C) to a moderately hot 74.3°F (23.5°C). South Sterling's nighttime temperature during June is consistently averaged at a cool 54.5°F (12.5°C).Humidity
The average relative humidity in June is 78%.Rainfall
In June, the rain falls for 16.2 days. Throughout June, 2.76" (70mm) of precipitation is accumulated. In South Sterling, during the entire year, the rain falls for 154.8 days and collects up to 32.24" (819mm) of precipitation.Snowfall
June through September are months without snowfall in South Sterling, Pennsylvania.Daylight
June has the longest days of the year, with an average of 15h and 6min of daylight.On the first day of June, sunrise is at 5:30 am and sunset at 8:28 pm. On the last day of the month, sunrise is at 5:32 am and sunset at 8:38 pm EDT.
Sunshine
The average sunshine in June is 9.3h.UV index
May through August, with an average maximum UV index of 5, are months with the highest UV index. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for average individuals.Note: In June, a daily maximum UV index of 5 leads to the following instructions:
Put precautions into practice - Protective measures against sun-induced damage are advised. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. 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
South Sterling, PA
- Average high temperature in June: 74.3°F
The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (29.8°F).
- Average low temperature in June: 54.5°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°F).
Average pressure in June
South Sterling, PA
- Average pressure in June: 29.94"Hg
The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in June
South Sterling, PA
- Average wind speed in June: 6.3mph
The windiest months (with the highest average wind speed) are January and February (8.6mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).
Average humidity in June
South Sterling, PA
- Average humidity in June: 78%
The month with the highest relative humidity is February (85%).
The month with the lowest relative humidity is July (77%).
Average rainfall in June
South Sterling, PA
- Average rainfall in June: 2.76"
The wettest month (with the highest rainfall) is July (3.27").
The driest month (with the least rainfall) is September (1.85").
Average rainfall days in June
South Sterling, PA
- Average rainfall days in June: 16.2 days
The month with the highest number of rainy days is July (17.7 days).
The month with the least rainy days is January (7.1 days).
Average snowfall in June
South Sterling, PA
- Average snowfall in June: 0"
The month with the highest snowfall is February (8.03").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in June
South Sterling, PA
- Average snowfall days in June: 0 days
The month with the highest number of snowfall days is January (13.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in June /
Average sunshine in June
South Sterling, 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 18min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 3h and 48min).
Average sunshine days in June
South Sterling, PA
- Average sunshine days in June: 11.8 days
The month with the most sunshine days is November (16.5 days).
The month with the least sunshine days is May (10.9 days).
Average UV index in June
South Sterling, 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
South Sterling, PA
- Average cloud cover in June: 43
The months with the most cloud cover are February and December (Cloud cover 60).
The month with the least cloud cover is July (Cloud cover 37).
Average visibility in June
South Sterling, PA
- Average visibility in June: 5mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).





