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, McKeesport sees a temperature rise, with the average high-temperature moving from April's refreshing 60.4°F (15.8°C) to an agreeable 72.1°F (22.3°C). During the month of May, an average low-temperature of 51.4°F (10.8°C) is recorded.Humidity
In McKeesport, Pennsylvania, the average relative humidity in May is 77%.Rainfall
May is the month with the most rainfall. Rain falls for 15 days and accumulates 1.26" (32mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. May is the last month it regularly snows in McKeesport. During 0.2 snowfall days, in May, McKeesport aggregates 0.04" (1mm) of snow. Throughout the year, there are 50 snowfall days, and 6.69" (170mm) of snow is accumulated.Daylight
The average length of the day in May is 14h and 26min.On the first day of May, sunrise is at 6:17 am and sunset at 8:15 pm. On the last day of the month, sunrise is at 5:51 am and sunset at 8:42 pm EDT.
Sunshine
The average sunshine in May is 8.9h.UV index
The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for average individuals.Note: The daily maximum UV index of 6 in May interprets into the following advice:
Continue precautions and advocate sun safety advice. Deterrence of sunburn is indispensable. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for McKeesport in May?
What is the average humidity in May?
What is the rainiest month?
How much does it rain in McKeesport in May?
What is the last month it snows?
What is the average length of the day in May?
When are sunrise and sunset in May?
How long on average sun shines in May?
What is the month with the highest UV index in McKeesport?
How high is the UV index in May in McKeesport?
Average temperature in May
McKeesport, PA
- Average high temperature in May: 72.1°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 (33.4°F).
- Average low temperature in May: 51.4°F
The month with the highest average low temperature is July (62.6°F).
The coldest month (with the lowest average low temperature) is January (20.7°F).
Average pressure in May
McKeesport, PA
- Average pressure in May: 30"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
McKeesport, 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
McKeesport, PA
- Average humidity in May: 77%
The month with the highest relative humidity is February (85%).
The month with the lowest relative humidity is August (74%).
Average rainfall in May
McKeesport, PA
- Average rainfall in May: 1.26"
The wettest month (with the highest rainfall) is May (1.26").
The driest months (with the least rainfall) are September and November (0.55").
Average rainfall days in May
McKeesport, PA
- Average rainfall days in May: 15 days
The month with the highest number of rainy days is May (15 days).
The month with the least rainy days is February (7.1 days).
Average snowfall in May
McKeesport, PA
- Average snowfall in May: 0.04"
The months with the highest snowfall are January and February (1.65").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
McKeesport, PA
- Average snowfall days in May: 0.2 days
The month with the highest number of snowfall days is January (14.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
McKeesport, PA
- Average daylight in May: 14h and 2min
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 24min).
- Average sunshine in May: 8h and 5min
The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).
Average sunshine days in May
McKeesport, PA
- Average sunshine days in May: 12.3 days
The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is May (12.3 days).
Average UV index in May
McKeesport, PA
- Average UV index in May: 6
The months with the highest UV index are May, June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in May
McKeesport, PA
- Average cloud cover in May: 44
The month with the most cloud cover is January (Cloud cover 69).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in May
McKeesport, PA
- Average visibility in May: 5mi
The months with the highest visibility are April, June, July, August and November (6mi).
The months with the lowest visibility are January, February, March, May, September, October and December (5mi).
McKeesport, Pennsylvania, USA
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