May weather forecastAliquippa, PA
May
Weather in May
May, the last month of the spring in Aliquippa, is a pleasant month, with an average temperature fluctuating between 72°F (22.2°C) and 50.7°F (10.4°C).Temperature
The transition to May introduces an increase in the average high-temperature, shifting from a refreshing 59.9°F (15.5°C) in April to a pleasant 72°F (22.2°C). Throughout May, the nighttime temperature in Aliquippa averages to a cool 50.7°F (10.4°C).Humidity
In Aliquippa, the average relative humidity in May is 77%.Rainfall
In Aliquippa, during May, the rain falls for 18.9 days and regularly aggregates up to 2.68" (68mm) of precipitation. In Aliquippa, during the entire year, the rain falls for 171.3 days and collects up to 25.79" (655mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. May is the last month it regularly snows. During 0.2 snowfall days, in May, Aliquippa aggregates 0.04" (1mm) of snow. Throughout the year, there are 56.4 snowfall days, and 12.36" (314mm) of snow is accumulated.Daylight
In Aliquippa, the average length of the day in May is 14h and 28min.On the first day of May, sunrise is at 6:18 am and sunset at 8:17 pm. On the last day of the month, sunrise is at 5:52 am and sunset at 8:45 pm EDT.
Sunshine
In Aliquippa, the average sunshine in May is 8.7h.UV index
In May, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: During May, 5 as the daily maximum UV index converts into the following advice:
Put precautions into practice - Protective measures against sun-induced damage are advised. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Aliquippa, PA
- Average high temperature in May: 72°F
The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (32.7°F).
- Average low temperature in May: 50.7°F
The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (20.1°F).
Average pressure in May
Aliquippa, PA
- Average pressure in May: 29.99"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in May
Aliquippa, PA
- Average wind speed in May: 6mph
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
Aliquippa, PA
- Average humidity in May: 77%
The months with the highest relative humidity are January and February (85%).
The months with the lowest relative humidity are April, July and August (76%).
Average rainfall in May
Aliquippa, PA
- Average rainfall in May: 2.68"
The wettest month (with the highest rainfall) is April (2.72").
The driest month (with the least rainfall) is January (1.61").
Average rainfall days in May
Aliquippa, PA
- Average rainfall days in May: 18.9 days
The month with the highest number of rainy days is May (18.9 days).
The month with the least rainy days is January (9.1 days).
Average snowfall in May
Aliquippa, PA
- Average snowfall in May: 0.04"
The month with the highest snowfall is January (3.54").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Aliquippa, PA
- Average snowfall days in May: 0.2 days
The month with the highest number of snowfall days is January (17 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Aliquippa, PA
- Average daylight in May: 14h and 30min
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 18min).
- Average sunshine in May: 8h and 42min
The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 2h and 54min).
Average sunshine days in May
Aliquippa, PA
- Average sunshine days in May: 9.7 days
The month with the most sunshine days is November (15.3 days).
The month with the least sunshine days is February (8.2 days).
Average UV index in May
Aliquippa, PA
- Average UV index in May: 5
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in May
Aliquippa, PA
- Average cloud cover in May: 45
The month with the most cloud cover is January (Cloud cover 70).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in May
Aliquippa, PA
- Average visibility in May: 5mi
The months with the highest visibility are April, August and November (6mi).
The months with the lowest visibility are January and February (4mi).





