Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average snowfall in May
- Average snowfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
The beginning of May marks a shift in the average high-temperature, moving from April's moderate 55.4°F (13°C) to a still refreshing 67.6°F (19.8°C). In the month of May, Glen Summit witnesses a consistent average low-temperature of 48°F (8.9°C).Humidity
The average relative humidity in May is 79%.Rainfall
In Glen Summit, in May, it is raining for 15.4 days, with typically 1.18" (30mm) of accumulated precipitation. Throughout the year, there are 142.7 rainfall days, and 13.19" (335mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 0.2 snowfall days, in May, Glen Summit aggregates 0.04" (1mm) of snow. Throughout the year, in Glen Summit, there are 49.9 snowfall days, and 9.92" (252mm) of snow is accumulated.Daylight
The average length of the day in May is 14h and 31min.On the first day of the month, sunrise is at 6:00 am and sunset at 8:00 pm. On the last day of May, sunrise is at 5:33 am and sunset at 8:29 pm EDT.
Sunshine
In Glen Summit, the average sunshine in May is 8.1h.UV index
May through August, with an average maximum UV index of 5, are months with the highest UV index in Glen Summit. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: An average UV index of 5 in May transforms into this advice:
Undertake precautions - It is suggested to shield oneself from sunburn. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in May?
What is the average humidity in May?
How much does it rain in May?
What is the last month it snows?
How many hours of daylight does Glen Summit have in May?
When is the sunrise / sunset in May?
How many hours of sunshine does Glen Summit have in May?
When is the highest UV index?
What is the UV index intensity in May?
Average temperature in May
Glen Summit, PA
- Average high temperature in May: 67.6°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 (30.6°F).
- Average low temperature in May: 48°F
The month with the highest average low temperature is July (59.2°F).
The coldest month (with the lowest average low temperature) is January (18.7°F).
Average pressure in May
Glen Summit, PA
- Average pressure in May: 30.01"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 May
Glen Summit, PA
- Average wind speed in May: 6.5mph
The windiest months (with the highest average wind speed) are March and April (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in May
Glen Summit, PA
- Average humidity in May: 79%
The months with the highest relative humidity are February and December (84%).
The month with the lowest relative humidity is April (77%).
Average rainfall in May
Glen Summit, PA
- Average rainfall in May: 1.18"
The wettest month (with the highest rainfall) is July (1.5").
The driest month (with the least rainfall) is September (0.71").
Average rainfall days in May
Glen Summit, PA
- Average rainfall days in May: 15.4 days
The month with the highest number of rainy days is May (15.4 days).
The month with the least rainy days is January (8.3 days).
Average snowfall in May
Glen Summit, PA
- Average snowfall in May: 0.04"
The month with the highest snowfall is February (2.83").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Glen Summit, PA
- Average snowfall days in May: 0.2 days
The month with the highest number of snowfall days is January (13.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Glen Summit, PA
- Average daylight in May: 14h and 3min
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 May: 8h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The months with the least sunshine are January and February (Average sunshine: 3h and 42min).
Average sunshine days in May
Glen Summit, PA
- Average sunshine days in May: 13.2 days
The month with the most sunshine days is November (16.9 days).
The month with the least sunshine days is February (11.6 days).
Average UV index in May
Glen Summit, PA
- Average UV index in May: 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 May
Glen Summit, PA
- Average cloud cover in May: 50
The month with the most cloud cover is February (Cloud cover 61).
The month with the least cloud cover is July (Cloud cover 36).
Average visibility in May
Glen Summit, PA
- Average visibility in May: 5mi
The month with the highest visibility is April (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October, November and December (5mi).
Glen Summit, Pennsylvania, USA
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