May weather forecastPerryopolis, PA
May
Weather in May
The last month of the spring, May, is a pleasant month in Perryopolis, Pennsylvania, with an average temperature varying between 71.8°F (22.1°C) and 50.9°F (10.5°C).Temperature
As May begins, there is an increase in the average high-temperature, moving from a moderate 60.1°F (15.6°C) in April to an agreeable 71.8°F (22.1°C). Perryopolis records an average low-temperature of 50.9°F (10.5°C) throughout the month of May.Humidity
In May, the average relative humidity is 79%.Rainfall
May is the month with the most rainfall. Rain falls for 16.8 days and accumulates 1.57" (40mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 0.1 snowfall days, in May, Perryopolis aggregates 0.16" (4mm) of snow. In Perryopolis, Pennsylvania, during the entire year, snow falls for 53.8 days and aggregates up to 10.79" (274mm) of snow.Daylight
In May, the average length of the day is 14h and 25min.On the first day of May, sunrise is at 6:17 am and sunset at 8:14 pm. On the last day of the month, sunrise is at 5:51 am and sunset at 8:41 pm EDT.
Sunshine
In Perryopolis, the average sunshine in May is 8.8h.UV index
In Perryopolis, Pennsylvania, the average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the average person.Note: In May, the maximum UV index of 5 translates into these guidelines:
Guard yourself - Precautionary measures against sun damage are advocated. The Sun's radiation is especially intense around midday; try to stay in shade during this period. During bright days, sunglasses that offer UVA and UVB defense are recommended. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Perryopolis, PA
- Average high temperature in May: 71.8°F
The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is January (34.2°F).
- Average low temperature in May: 50.9°F
The month with the highest average low temperature is July (60.8°F).
The coldest month (with the lowest average low temperature) is January (21.2°F).
Average pressure in May
Perryopolis, PA
- Average pressure in May: 30"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in May
Perryopolis, PA
- Average wind speed in May: 6.2mph
The windiest month (with the highest average wind speed) is January (8mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).
Average humidity in May
Perryopolis, PA
- Average humidity in May: 79%
The month with the highest relative humidity is February (85%).
The months with the lowest relative humidity are April, July and August (77%).
Average rainfall in May
Perryopolis, PA
- Average rainfall in May: 1.57"
The wettest month (with the highest rainfall) is May (1.57").
The driest month (with the least rainfall) is September (0.67").
Average rainfall days in May
Perryopolis, PA
- Average rainfall days in May: 16.8 days
The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is February (7.7 days).
Average snowfall in May
Perryopolis, PA
- Average snowfall in May: 0.16"
The month with the highest snowfall is January (2.64").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Perryopolis, PA
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is January (15.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Perryopolis, PA
- Average daylight in May: 14h and 24min
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 May: 8h and 48min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).
Average sunshine days in May
Perryopolis, PA
- Average sunshine days in May: 11 days
The month with the most sunshine days is November (17.9 days).
The month with the least sunshine days is January (9.7 days).
Average UV index in May
Perryopolis, PA
- Average UV index in May: 5
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in May
Perryopolis, PA
- Average cloud cover in May: 46
The month with the most cloud cover is January (Cloud cover 69).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in May
Perryopolis, PA
- Average visibility in May: 5mi
The months with the highest visibility are April and November (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October and December (5mi).





