June weather forecastNorristown, PA
June
Weather in June
The first month of the summer, June, is a warm month in Norristown, Pennsylvania, with an average temperature fluctuating between 61.5°F (16.4°C) and 79.5°F (26.4°C).Temperature
June's arrival signals a subtle increase in average high-temperatures, moving from May's agreeable 71.4°F (21.9°C) to a warm 79.5°F (26.4°C). In June, Norristown encounters an average low-temperature of 61.5°F (16.4°C) during the night.Humidity
In Norristown, the average relative humidity in June is 75%.Rainfall
In Norristown, in June, it is raining for 14.2 days, with typically 1.42" (36mm) of accumulated precipitation. Throughout the year, there are 138.2 rainfall days, and 15.59" (396mm) of precipitation is accumulated.Snowfall
In Norristown, snow does not fall in April, June through November.Daylight
With an average of 15h and 0min of daylight, June has the longest days of the year.On the first day of the month, sunrise is at 5:33 am and sunset at 8:24 pm. On the last day of June, sunrise is at 5:35 am and sunset at 8:34 pm EDT.
Sunshine
In June, the average sunshine is 9.8h.UV index
May through August, 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 risk from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum UV index of 6 during June translates into these guidelines:
Embrace precautions and observe sun safety norms. Evasion of sunburn is a necessity. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in June
Norristown, PA
- Average high temperature in June: 79.5°F
The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (36.7°F).
- Average low temperature in June: 61.5°F
The month with the highest average low temperature is July (67.5°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).
Average pressure in June
Norristown, 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
Norristown, PA
- Average wind speed in June: 6.2mph
The windiest month (with the highest average wind speed) is March (8.3mph).
The calmest months (with the lowest average wind speed) are July and August (5.3mph).
Average humidity in June
Norristown, PA
- Average humidity in June: 75%
The months with the highest relative humidity are February and October (79%).
The months with the lowest relative humidity are April and July (72%).
Average rainfall in June
Norristown, PA
- Average rainfall in June: 1.42"
The wettest month (with the highest rainfall) is July (1.89").
The driest month (with the least rainfall) is February (0.91").
Average rainfall days in June
Norristown, PA
- Average rainfall days in June: 14.2 days
The month with the highest number of rainy days is May (16 days).
The month with the least rainy days is November (7.4 days).
Average snowfall in June
Norristown, PA
- Average snowfall in June: 0"
The months with the highest snowfall are February and March (0.55").
The months with the least snowfall are April, June, July, August, September, October and November (0").
Average snowfall days in June
Norristown, 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 April, June, July, August, September and October (0 days).
Average daylight in June /
Average sunshine in June
Norristown, 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 42min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in June
Norristown, PA
- Average sunshine days in June: 12.8 days
The month with the most sunshine days is November (20.5 days).
The months with the least sunshine days are May and June (12.8 days).
Average UV index in June
Norristown, 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
Norristown, 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 32).
Average visibility in June
Norristown, 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).
