May weather forecastBig Run, PA
May
Weather in May
May, the last month of the spring in Big Run, is an agreeable month, with an average temperature fluctuating between 48.4°F (9.1°C) and 68.9°F (20.5°C).Temperature
With the onset of May, Big Run experiences a temperature shift, with the average high-temperature moving from a refreshing 56.8°F (13.8°C) in April to an agreeable 68.9°F (20.5°C). An average temperature of 48.4°F (9.1°C) marks the nights in May.Humidity
In May, the average relative humidity in Big Run is 79%.Rainfall
In Big Run, during May, the rain falls for 18 days and regularly aggregates up to 2.36" (60mm) of precipitation. Throughout the year, in Big Run, there are 151.9 rainfall days, and 22.13" (562mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 0.6 snowfall days, in May, Big Run aggregates 0.55" (14mm) of snow. Throughout the year, there are 71 snowfall days, and 22.32" (567mm) of snow is accumulated.Daylight
In May, the average length of the day is 14h and 29min.On the first day of May, sunrise is at 6:12 am and sunset at 8:12 pm. On the last day of the month, sunrise is at 5:45 am and sunset at 8:40 pm EDT.
Sunshine
In May, the average sunshine is 8.1h.UV index
May through August, with an average maximum UV index of 5, are months with the highest UV index. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the average person.Note: An average UV index of 5 in May transforms into this advice:
Be vigilant - A duty to shield skin and eyes from injury exists. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Big Run, PA
- Average high temperature in May: 68.9°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (30.4°F).
- Average low temperature in May: 48.4°F
The month with the highest average low temperature is July (58.8°F).
The coldest month (with the lowest average low temperature) is January (18.3°F).
Average pressure in May
Big Run, 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
Big Run, PA
- Average wind speed in May: 7mph
The windiest month (with the highest average wind speed) is January (9.1mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).
Average humidity in May
Big Run, PA
- Average humidity in May: 79%
The month with the highest relative humidity is February (88%).
The months with the lowest relative humidity are June, July and August (78%).
Average rainfall in May
Big Run, PA
- Average rainfall in May: 2.36"
The wettest month (with the highest rainfall) is April (2.48").
The driest month (with the least rainfall) is November (1.26").
Average rainfall days in May
Big Run, PA
- Average rainfall days in May: 18 days
The month with the highest number of rainy days is May (18 days).
The month with the least rainy days is January (7.8 days).
Average snowfall in May
Big Run, PA
- Average snowfall in May: 0.55"
The month with the highest snowfall is January (5.63").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Big Run, PA
- Average snowfall days in May: 0.6 days
The month with the highest number of snowfall days is January (18.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Big Run, PA
- Average daylight in May: 14h and 30min
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 6min
The months with the most sunshine are July and August (Average sunshine: 9h and 36min).
The month with the least sunshine is January (Average sunshine: 2h and 30min).
Average sunshine days in May
Big Run, PA
- Average sunshine days in May: 10.7 days
The month with the most sunshine days is September (15.3 days).
The month with the least sunshine days is February (7.8 days).
Average UV index in May
Big 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 month with the lowest UV index is December (UV index 1).
Average cloud cover in May
Big Run, PA
- Average cloud cover in May: 50
The month with the most cloud cover is January (Cloud cover 75).
The month with the least cloud cover is August (Cloud cover 39).
Average visibility in May
Big Run, PA
- Average visibility in May: 5mi
The month with the highest visibility is April (6mi).
The months with the lowest visibility are January and February (4mi).
