May weather forecastBlue Ball, PA
May
Weather in May
May, the last month of the spring in Blue Ball, is a pleasant month, with an average temperature ranging between min 52.2°F (11.2°C) and max 70.2°F (21.2°C).Temperature
As May arrives, Blue Ball's weather shows an increase in high-temperatures, moving from April's refreshing 59.9°F (15.5°C) to an agreeable 70.2°F (21.2°C). During the month of May, Blue Ball experiences a steady low-temperature average of 52.2°F (11.2°C).Humidity
February, May and October, with an average relative humidity of 81%, are the most humid months.Rainfall
In Blue Ball, during May, the rain falls for 17.7 days and regularly aggregates up to 3.03" (77mm) of precipitation. Throughout the year, there are 166.2 rainfall days, and 33.46" (850mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 0.1 snowfall days, in May, Blue Ball aggregates 0.08" (2mm) of snow. In Blue Ball, during the entire year, snow falls for 27.2 days and aggregates up to 14.45" (367mm) of snow.Daylight
In Blue Ball, the average length of the day in May is 14h and 25min.On the first day of the month, sunrise is at 6:02 am and sunset at 7:59 pm. On the last day of May, sunrise is at 5:37 am and sunset at 8:26 pm EDT.
Sunshine
In Blue Ball, the average sunshine in May is 8.3h.UV index
May through July, with an average maximum UV index of 6, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A daily high UV index of 6 in May leads to these guidelines:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. A hat with a broad brim is indispensable, filtering out up to half of UV rays. 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
Average temperature in May
Blue Ball, PA
- Average high temperature in May: 70.2°F
The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is January (35.2°F).
- Average low temperature in May: 52.2°F
The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (23°F).
Average pressure in May
Blue Ball, 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
Blue Ball, PA
- Average wind speed in May: 6.6mph
The windiest months (with the highest average wind speed) are January, February and March (8.8mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in May
Blue Ball, PA
- Average humidity in May: 81%
The months with the highest relative humidity are February, May and October (81%).
The month with the lowest relative humidity is April (76%).
Average rainfall in May
Blue Ball, PA
- Average rainfall in May: 3.03"
The wettest month (with the highest rainfall) is August (3.58").
The driest month (with the least rainfall) is September (2.28").
Average rainfall days in May
Blue Ball, PA
- Average rainfall days in May: 17.7 days
The month with the highest number of rainy days is July (18.1 days).
The month with the least rainy days is January (9.5 days).
Average snowfall in May
Blue Ball, PA
- Average snowfall in May: 0.08"
The month with the highest snowfall is March (4.45").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Blue Ball, PA
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is January (8.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Blue Ball, PA
- Average daylight in May: 14h and 24min
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 18min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The months with the least sunshine are January and February (Average sunshine: 4h and 36min).
Average sunshine days in May
Blue Ball, PA
- Average sunshine days in May: 10.5 days
The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is May (10.5 days).
Average UV index in May
Blue Ball, PA
- Average UV index in May: 6
The months with the highest UV index are May, June and July (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
Blue Ball, PA
- Average cloud cover in May: 48
The months with the most cloud cover are February and December (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in May
Blue Ball, PA
- Average visibility in May: 5mi
The months with the highest visibility are January, February, March, April, June, July, November and December (6mi).
The months with the lowest visibility are May, August, September and October (5mi).





