June weather forecastSylvester, PA
June
Weather in June
June, the first month of the summer in Sylvester, is a warm month, with an average temperature varying between 74.1°F (23.4°C) and 52.2°F (11.2°C).Temperature
As Sylvester, Pennsylvania, transitions into June, the average high-temperature is observed to slightly rise from a comfortable 66.7°F (19.3°C) in May to a moderately hot 74.1°F (23.4°C). Sylvester sees a large disparity in day to night temperatures in June, with the night temperature dropping to an average of 52.2°F (11.2°C).Humidity
The months with the lowest humidity are April through June, with an average relative humidity of 78%.Rainfall
In Sylvester, during June, the rain falls for 17.4 days and regularly aggregates up to 2.48" (63mm) of precipitation. Throughout the year, there are 168.3 rainfall days, and 28.19" (716mm) of precipitation is accumulated.Snowfall
In Sylvester, snow does not fall in June through September.Daylight
June has the longest days of the year, with an average of 15h and 12min of daylight.On the first day of the month, sunrise is at 5:36 am and sunset at 8:39 pm. On the last day of June, sunrise is at 5:38 am and sunset at 8:49 pm EDT.
Sunshine
In June, the average sunshine is 9.1h.UV index
May through August, with an average maximum UV index of 5, are months with the highest UV index in Sylvester. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the average person.Note: In June, the UV index of 5 transforms into the following advice:
Take necessary precautions - Suggestions to elude sunburn are provided. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in June
Sylvester, PA
- Average high temperature in June: 74.1°F
The warmest month (with the highest average high temperature) is July (79.2°F).
The month with the lowest average high temperature is January (28.2°F).
- Average low temperature in June: 52.2°F
The month with the highest average low temperature is July (57°F).
The coldest month (with the lowest average low temperature) is January (16.9°F).
Average pressure in June
Sylvester, 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
Sylvester, PA
- Average wind speed in June: 7mph
The windiest month (with the highest average wind speed) is January (9.6mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity in June
Sylvester, PA
- Average humidity in June: 78%
The month with the highest relative humidity is February (86%).
The months with the lowest relative humidity are April, May and June (78%).
Average rainfall in June
Sylvester, PA
- Average rainfall in June: 2.48"
The wettest month (with the highest rainfall) is April (2.95").
The driest month (with the least rainfall) is November (1.81").
Average rainfall days in June
Sylvester, PA
- Average rainfall days in June: 17.4 days
The month with the highest number of rainy days is July (18.9 days).
The month with the least rainy days is February (7.2 days).
Average snowfall in June
Sylvester, PA
- Average snowfall in June: 0"
The month with the highest snowfall is February (7.76").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in June
Sylvester, PA
- Average snowfall days in June: 0 days
The month with the highest number of snowfall days is January (18.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in June /
Average sunshine in June
Sylvester, PA
- Average daylight in June: 15h and 12min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in June: 9h and 6min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The months with the least sunshine are January, February and December (Average sunshine: 3h and 6min).
Average sunshine days in June
Sylvester, PA
- Average sunshine days in June: 9.8 days
The month with the most sunshine days is September (14.9 days).
The month with the least sunshine days is February (7.1 days).
Average UV index in June
Sylvester, PA
- Average UV index in June: 5
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in June
Sylvester, PA
- Average cloud cover in June: 43
The month with the most cloud cover is January (Cloud cover 71).
The month with the least cloud cover is August (Cloud cover 39).
Average visibility in June
Sylvester, 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).





