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
The shift into May is characterized by a rise in the average high-temperature, transitioning from April's moderate 57.2°F (14°C) to a pleasant 68°F (20°C). During May, an average low-temperature of 49.5°F (9.7°C) is observed.Humidity
The average relative humidity in May in Boston Run is 81%.Rainfall
The month with the most rainfall is May, when the rain falls for 19 days and typically aggregates up to 3.39" (86mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. May is the last month it regularly snows in Boston Run. During 0.3 snowfall days, in May, Boston Run aggregates 0.31" (8mm) of snow. Throughout the year, there are 48.5 snowfall days, and 27.72" (704mm) of snow is accumulated.Daylight
The average length of the day in May is 14h and 29min.On the first day of the month, sunrise is at 6:02 am and sunset at 8:01 pm. On the last day of May, in Boston Run, sunrise is at 5:35 am and sunset at 8:29 pm EDT.
Sunshine
In May, the average sunshine is 8.3h.UV index
May through August, with an average maximum UV index of 5, are months with the highest UV index. A UV Index estimate of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: During May, 5 as the daily maximum UV index converts into the following advice:
Undertake precautions - Guarding against sun damage is counselled. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in May in Boston Run?
What is the average humidity in May in Boston Run?
What is the rainiest month in Boston Run?
How much does it rain in Boston Run in May?
What is the last month it snows in Boston Run?
How many hours of daylight does Boston Run have in May?
When is the sunrise / sunset in May in Boston Run?
How long on average sun shines in May in Boston Run?
When is the highest UV index in Boston Run?
What is the UV index reading in May in Boston Run?
Average temperature in May
Boston Run, PA
- Average high temperature in May: 68°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (31.8°F).
- Average low temperature in May: 49.5°F
The month with the highest average low temperature is July (61.2°F).
The coldest month (with the lowest average low temperature) is January (19.6°F).
Average pressure in May
Boston Run, PA
- Average pressure in May: 30.01"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
Boston Run, PA
- Average wind speed in May: 6.3mph
The windiest month (with the highest average wind speed) is March (8.3mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in May
Boston Run, PA
- Average humidity in May: 81%
The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is April (77%).
Average rainfall in May
Boston Run, PA
- Average rainfall in May: 3.39"
The wettest month (with the highest rainfall) is May (3.39").
The driest month (with the least rainfall) is September (1.97").
Average rainfall days in May
Boston Run, PA
- Average rainfall days in May: 19 days
The month with the highest number of rainy days is May (19 days).
The month with the least rainy days is January (9.7 days).
Average snowfall in May
Boston Run, PA
- Average snowfall in May: 0.31"
The month with the highest snowfall is January (7.24").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Boston Run, PA
- Average snowfall days in May: 0.3 days
The month with the highest number of snowfall days is January (12.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Boston Run, PA
- Average daylight in May: 14h and 3min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in May: 8h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The months with the least sunshine are January and February (Average sunshine: 4h and 18min).
Average sunshine days in May
Boston Run, PA
- Average sunshine days in May: 9.1 days
The month with the most sunshine days is November (15.8 days).
The month with the least sunshine days is May (9.1 days).
Average UV index in May
Boston Run, PA
- Average UV index in May: 5
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in May
Boston Run, PA
- Average cloud cover in May: 49
The month with the most cloud cover is February (Cloud cover 55).
The month with the least cloud cover is July (Cloud cover 33).
Average visibility in May
Boston Run, PA
- Average visibility in May: 5mi
The month with the highest visibility is April (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October, November and December (5mi).
Boston Run, Pennsylvania, USA
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