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
An upsurge in temperatures occurs as April gives way to May, with average highs shifting from a mild 60.3°F (15.7°C) to a pleasant 72°F (22.2°C). Sewickley, during the month of May, experiences an average low-temperature of 50.9°F (10.5°C).Humidity
In Sewickley, the average relative humidity in May is 77%.Rainfall
In Sewickley, Pennsylvania, in May, during 17.5 rainfall days, 2.24" (57mm) of precipitation is typically accumulated. Throughout the year, in Sewickley, there are 154.8 rainfall days, and 21.22" (539mm) of precipitation is accumulated.Snowfall
Months with snowfall in Sewickley are January through May, October through December. May is the last month it regularly snows. During 0.3 snowfall days, in May, Sewickley aggregates 0.04" (1mm) of snow. Throughout the year, in Sewickley, there are 49.9 snowfall days, and 10.12" (257mm) of snow is accumulated.Daylight
In May, the average length of the day is 14h and 27min.On the first day of May, sunrise is at 6:18 am and sunset at 8:16 pm. On the last day of the month, sunrise is at 5:52 am and sunset at 8:44 pm EDT.
Sunshine
In May, the average sunshine in Sewickley, Pennsylvania, is 8.6h.UV index
The months with the highest UV index in Sewickley are May through July, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for average individuals.Note: A maximum high daily UV index of 6 during May translates into the following directions:
Resist overexposure. Safeguarding from solar damage is indispensable. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.
Frequently asked questions
What is the average May temperature in Sewickley?
What is the average humidity in May in Sewickley?
How many days does it rain in May in Sewickley?
What is the last month it snows in Sewickley?
What is the average length of the day in May in Sewickley?
When are sunrise and sunset in May in Sewickley?
How many hours of sunshine does Sewickley have in May?
What are the months with the highest UV index in Sewickley?
How high is the UV index in May in Sewickley?
Average temperature in May
Sewickley, PA
- Average high temperature in May: 72°F
The warmest month (with the highest average high temperature) is July (83.5°F).
The month with the lowest average high temperature is January (32.9°F).
- Average low temperature in May: 50.9°F
The month with the highest average low temperature is July (61.9°F).
The coldest month (with the lowest average low temperature) is January (20.3°F).
Average pressure in May
Sewickley, 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 (29.95"Hg).
Average wind speed in May
Sewickley, PA
- Average wind speed in May: 6mph
The windiest month (with the highest average wind speed) is January (8.1mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).
Average humidity in May
Sewickley, PA
- Average humidity in May: 77%
The month with the highest relative humidity is February (85%).
The months with the lowest relative humidity are July and August (75%).
Average rainfall in May
Sewickley, PA
- Average rainfall in May: 2.24"
The wettest month (with the highest rainfall) is July (2.36").
The driest month (with the least rainfall) is January (1.22").
Average rainfall days in May
Sewickley, 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 (8.1 days).
Average snowfall in May
Sewickley, PA
- Average snowfall in May: 0.04"
The month with the highest snowfall is February (2.76").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Sewickley, PA
- Average snowfall days in May: 0.3 days
The month with the highest number of snowfall days is January (14.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Sewickley, PA
- Average daylight in May: 14h and 3min
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 4min
The month with the most sunshine is August (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 2h and 54min).
Average sunshine days in May
Sewickley, PA
- Average sunshine days in May: 11.2 days
The month with the most sunshine days is November (16.6 days).
The month with the least sunshine days is February (10.7 days).
Average UV index in May
Sewickley, PA
- Average UV index in May: 6
The months with the highest UV index are May, June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in May
Sewickley, 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 34).
Average visibility in May
Sewickley, PA
- Average visibility in May: 5mi
The months with the highest visibility are April, June, August and November (6mi).
The months with the lowest visibility are January, February, March, May, July, September, October and December (5mi).
Sewickley, Pennsylvania, USA
Weather forecast for your location
2. Allow the app to use your location
