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
In Saint Leonard, the onset of May comes with an increased average high-temperature, moving from April's mild 60.6°F (15.9°C) to a pleasant 71.2°F (21.8°C). Saint Leonard usually reports an average low-temperature of 53.6°F (12°C) during the month of May.Humidity
The average relative humidity in May is 75%.Rainfall
In Saint Leonard, Pennsylvania, during May, the rain falls for 16.8 days and regularly aggregates up to 2.83" (72mm) of precipitation. Throughout the year, there are 156 rainfall days, and 31.77" (807mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. May is the last month it regularly snows. During 0.1 snowfall days, in May, Saint Leonard aggregates 0.28" (7mm) of snow. In Saint Leonard, during the entire year, snow falls for 24 days and aggregates up to 12.13" (308mm) of snow.Daylight
In May, the average length of the day is 14h and 25min.On the first day of May, sunrise is at 5:58 am and sunset at 7:55 pm. On the last day of the month, sunrise is at 5:32 am and sunset at 8:22 pm EDT.
Sunshine
The average sunshine in May is 8.5h.UV index
The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: The UV index of 6 in May translates into these instructions:
Enforce precautions and stick to sun safety measures. Preservation from skin and eye damage is essential. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average May temperature?
What is the average humidity in May?
How many days does it rain in May?
What is the last month it snows?
How many hours of daylight does Saint Leonard have in May?
When are sunrise and sunset in May?
How long on average sun shines in May?
When is the highest UV index?
How high is the UV index in May?
Average temperature in May
Saint Leonard, PA
- Average high temperature in May: 71.2°F
The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (36.9°F).
- Average low temperature in May: 53.6°F
The month with the highest average low temperature is July (67.5°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).
Average pressure in May
Saint Leonard, PA
- Average pressure in May: 30.01"Hg
The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in May
Saint Leonard, PA
- Average wind speed in May: 6.7mph
The windiest month (with the highest average wind speed) is March (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).
Average humidity in May
Saint Leonard, PA
- Average humidity in May: 75%
The months with the highest relative humidity are February and October (78%).
The months with the lowest relative humidity are April, July and August (72%).
Average rainfall in May
Saint Leonard, PA
- Average rainfall in May: 2.83"
The wettest month (with the highest rainfall) is December (3.31").
The driest month (with the least rainfall) is September (1.89").
Average rainfall days in May
Saint Leonard, PA
- Average rainfall days in May: 16.8 days
The month with the highest number of rainy days is July (17 days).
The month with the least rainy days is November (8.5 days).
Average snowfall in May
Saint Leonard, PA
- Average snowfall in May: 0.28"
The month with the highest snowfall is March (3.78").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Saint Leonard, PA
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is January (7.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Saint Leonard, 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 3min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in May
Saint Leonard, PA
- Average sunshine days in May: 12.1 days
The month with the most sunshine days is November (18.8 days).
The month with the least sunshine days is June (11.4 days).
Average UV index in May
Saint Leonard, PA
- Average UV index in May: 6
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in May
Saint Leonard, PA
- Average cloud cover in May: 47
The months with the most cloud cover are February and December (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in May
Saint Leonard, PA
- Average visibility in May: 5mi
The months with the highest visibility are January, February, March, April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are May and September (5mi).
Saint Leonard, Pennsylvania, USA
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