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
May's arrival coincides with a temperature rise, moving from April's moderate 60.1°F (15.6°C) to a pleasant 71.6°F (22°C). Sewickley Hills records an average low of 51.1°F (10.6°C) throughout the nights in May.Humidity
The average relative humidity in May in Sewickley Hills is 77%.Rainfall
In Sewickley Hills, during May, the rain falls for 12.7 days and regularly aggregates up to 0.87" (22mm) of precipitation. Throughout the year, there are 104.1 rainfall days, and 8.23" (209mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. May is the last month it regularly snows. During 0.3 snowfall days, in May, Sewickley Hills aggregates 0.04" (1mm) of snow. In Sewickley Hills, during the entire year, snow falls for 33.9 days and aggregates up to 4.37" (111mm) of snow.Daylight
In Sewickley Hills, 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 8:16 pm. On the last day of the month, sunrise is at 5:51 am and sunset at 8:44 pm EDT.
Sunshine
In May, the average sunshine is 8.7h.UV index
In Sewickley Hills, the average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes 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 transforms into these recommendations:
Be mindful. Those with pale skin might receive burns in fewer than 30 minutes. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.
Frequently asked questions
What is the average May temperature in Sewickley Hills?
What is the average humidity in May in Sewickley Hills?
How many days does it rain in May in Sewickley Hills?
What is the last month it snows in Sewickley Hills?
How many hours of daylight does Sewickley Hills have in May?
When is the sunrise / sunset in May in Sewickley Hills?
How long on average sun shines in May in Sewickley Hills?
What is the UV index intensity in May in Sewickley Hills?
Average temperature in May
Sewickley Hills, PA
- Average high temperature in May: 71.6°F
The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (32.5°F).
- Average low temperature in May: 51.1°F
The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (20.1°F).
Average pressure in May
Sewickley Hills, 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
Sewickley Hills, PA
- Average wind speed in May: 6.1mph
The windiest month (with the highest average wind speed) is January (8mph).
The calmest months (with the lowest average wind speed) are July and August (4.8mph).
Average humidity in May
Sewickley Hills, 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 July and August (75%).
Average rainfall in May
Sewickley Hills, PA
- Average rainfall in May: 0.87"
The wettest months (with the highest rainfall) are June and July (0.91").
The driest months (with the least rainfall) are January and November (0.47").
Average rainfall days in May
Sewickley Hills, PA
- Average rainfall days in May: 12.7 days
The month with the highest number of rainy days is May (12.7 days).
The month with the least rainy days is January (4.5 days).
Average snowfall in May
Sewickley Hills, PA
- Average snowfall in May: 0.04"
The month with the highest snowfall is February (1.18").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Sewickley Hills, PA
- Average snowfall days in May: 0.3 days
The month with the highest number of snowfall days is February (9 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 Hills, 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 12min).
The month with the least sunshine is January (Average sunshine: 2h and 54min).
Average sunshine days in May
Sewickley Hills, PA
- Average sunshine days in May: 14.7 days
The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is May (14.7 days).
Average UV index in May
Sewickley Hills, PA
- Average UV index in May: 5
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in May
Sewickley Hills, 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 Hills, 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 Hills, Pennsylvania, USA
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