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 brings a temperature increase, with average high-temperatures moving from April's moderate 60.1°F (15.6°C) to an agreeable 71.6°F (22°C). Sewickley Heights observes an average low-temperature of 51.1°F (10.6°C) during May nights.Humidity
In Sewickley Heights, the average relative humidity in May is 77%.Rainfall
In Sewickley Heights, during May, the rain falls for 12.7 days and regularly aggregates up to 0.87" (22mm) of precipitation. Throughout the year, in Sewickley Heights, Pennsylvania, there are 104.1 rainfall days, and 8.23" (209mm) of precipitation is accumulated.Snowfall
Months with snowfall in Sewickley Heights are January through May, October through December. May is the last month it regularly snows. During 0.3 snowfall days, in May, Sewickley Heights aggregates 0.04" (1mm) of snow. Throughout the year, there are 33.9 snowfall days, and 4.37" (111mm) of snow is accumulated.Daylight
In May, the average length of the day in Sewickley Heights is 14h and 27min.On the first day of the month, sunrise is at 6:18 am and sunset at 8:16 pm. On the last day of May, sunrise is at 5:52 am and sunset at 8:44 pm EDT.
Sunshine
In Sewickley Heights, the average sunshine in May is 8.7h.UV index
The average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the average person.Note: An average maximum UV index of 5 in May leads to these recommendations:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. The Sun's radiation is especially intense around midday; try to stay in shade during this period. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.
Frequently asked questions
What is the usual temperature for Sewickley Heights in May?
What is the average humidity in May in Sewickley Heights?
How much does it rain in Sewickley Heights in May?
What is the last month it snows in Sewickley Heights?
What is the average length of the day in May in Sewickley Heights?
When is the sunrise / sunset in May in Sewickley Heights?
How many hours of sunshine does Sewickley Heights have in May?
What is the UV index intensity in May in Sewickley Heights?
Average temperature in May
Sewickley Heights, 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 Heights, 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 Heights, 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 Heights, 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 Heights, 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 Heights, 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 Heights, 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 Heights, 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 Heights, 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 Heights, 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 Heights, 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 Heights, 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 Heights, 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 Heights, Pennsylvania, USA
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