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
With the onset of May, Port Allegany's weather sees a temperature rise, transitioning from a fresh 52.7°F (11.5°C) in April to a comfortable 66.4°F (19.1°C). An average low-temperature of 45.7°F (7.6°C) is common during the nights of May.Humidity
The average relative humidity in May in Port Allegany is 79%.Rainfall
In Port Allegany, Pennsylvania, in May, during 17.5 rainfall days, 2.17" (55mm) of precipitation is typically accumulated. Throughout the year, in Port Allegany, there are 162.1 rainfall days, and 27.36" (695mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall in Port Allegany. May is the last month it regularly snows in Port Allegany. During 0.9 snowfall days, in May, Port Allegany aggregates 0.35" (9mm) of snow. In Port Allegany, during the entire year, snow falls for 96.1 days and aggregates up to 45.55" (1157mm) of snow.Daylight
In May, the average length of the day is 14h and 34min.On the first day of May, sunrise is at 6:08 am and sunset at 8:11 pm. On the last day of the month, sunrise is at 5:40 am and sunset at 8:41 pm EDT.
Sunshine
In Port Allegany, Pennsylvania, the average sunshine in May is 8.2h.UV index
The months with the highest UV index are May through August, with an average maximum UV index of 5. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for average individuals.Note: The UV index of 5 in May translates into these instructions:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Frequently asked questions
What is the temperature in May in Port Allegany?
What is the average humidity in May in Port Allegany?
How much does it rain in Port Allegany in May?
What is the last month it snows in Port Allegany?
How many hours of daylight does Port Allegany have in May?
What time are sunrise and sunset in May in Port Allegany?
How long on average sun shines in May in Port Allegany?
What is the month with the highest UV index in Port Allegany?
What is the UV index reading in May in Port Allegany?
Average temperature in May
Port Allegany, PA
- Average high temperature in May: 66.4°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°F).
- Average low temperature in May: 45.7°F
The month with the highest average low temperature is July (56.3°F).
The coldest month (with the lowest average low temperature) is January (15.8°F).
Average pressure in May
Port Allegany, PA
- Average pressure in May: 30"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 May
Port Allegany, PA
- Average wind speed in May: 7.1mph
The windiest month (with the highest average wind speed) is January (9.3mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).
Average humidity in May
Port Allegany, PA
- Average humidity in May: 79%
The month with the highest relative humidity is February (88%).
The month with the lowest relative humidity is June (78%).
Average rainfall in May
Port Allegany, PA
- Average rainfall in May: 2.17"
The wettest month (with the highest rainfall) is April (3.07").
The driest month (with the least rainfall) is August (1.85").
Average rainfall days in May
Port Allegany, PA
- Average rainfall days in May: 17.5 days
The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is January (7.3 days).
Average snowfall in May
Port Allegany, PA
- Average snowfall in May: 0.35"
The month with the highest snowfall is February (10.51").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Port Allegany, PA
- Average snowfall days in May: 0.9 days
The month with the highest number of snowfall days is January (21.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Port Allegany, PA
- Average daylight in May: 14h and 4min
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 May: 8h and 1min
The month with the most sunshine is July (Average sunshine: 9h and 36min).
The months with the least sunshine are January and December (Average sunshine: 2h and 36min).
Average sunshine days in May
Port Allegany, PA
- Average sunshine days in May: 10.2 days
The month with the most sunshine days is September (13.7 days).
The month with the least sunshine days is February (5.2 days).
Average UV index in May
Port Allegany, PA
- Average UV index in May: 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 May
Port Allegany, PA
- Average cloud cover in May: 51
The month with the most cloud cover is January (Cloud cover 77).
The month with the least cloud cover is July (Cloud cover 42).
Average visibility in May
Port Allegany, PA
- Average visibility in May: 5mi
The months with the highest visibility are March, April, May, June, July, October and November (5mi).
The months with the lowest visibility are January, February, August, September and December (4mi).
Port Allegany, Pennsylvania, USA
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