May weather forecastCenter Valley, PA
May
Weather in May
May, the last month of the spring in Center Valley, is a pleasant month, with an average temperature fluctuating between 51.4°F (10.8°C) and 70.3°F (21.3°C).Temperature
In May, the meteorological conditions change with the average high-temperature moving from a refreshing 59.7°F (15.4°C) in April to an agreeable 70.3°F (21.3°C). During May, the nighttime temperature in Center Valley averages of 51.4°F (10.8°C).Humidity
The average relative humidity in May is 78%.Rainfall
The months with the most rainfall in Center Valley are May and July, with an average 3.07" (78mm) of precipitation.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, Center Valley aggregates 0.2" (5mm) of snow. Throughout the year, there are 29.3 snowfall days, and 16.57" (421mm) of snow is accumulated.Daylight
In May, the average length of the day is 14h and 27min.On the first day of May in Center Valley, sunrise is at 5:59 am and sunset at 7:57 pm. On the last day of the month, sunrise is at 5:33 am and sunset at 8:25 pm EDT.
Sunshine
In May, the average sunshine is 8.3h.UV index
The months with the highest UV index are May through July, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: An average UV index of 6 in May transforms into this advice:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Center Valley, PA
- Average high temperature in May: 70.3°F
The warmest month (with the highest average high temperature) is July (84.6°F).
The month with the lowest average high temperature is January (35.1°F).
- Average low temperature in May: 51.4°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (22.3°F).
Average pressure in May
Center Valley, 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 (29.94"Hg).
Average wind speed in May
Center Valley, PA
- Average wind speed in May: 6.3mph
The windiest month (with the highest average wind speed) is March (8.1mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in May
Center Valley, PA
- Average humidity in May: 78%
The month with the highest relative humidity is February (81%).
The months with the lowest relative humidity are April and July (75%).
Average rainfall in May
Center Valley, PA
- Average rainfall in May: 3.07"
The wettest months (with the highest rainfall) are May and July (3.07").
The driest month (with the least rainfall) is September (1.89").
Average rainfall days in May
Center Valley, PA
- Average rainfall days in May: 17 days
The month with the highest number of rainy days is May (17 days).
The month with the least rainy days is January (8.3 days).
Average snowfall in May
Center Valley, PA
- Average snowfall in May: 0.2"
The month with the highest snowfall is March (4.72").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Center Valley, PA
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is February (8.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Center Valley, PA
- Average daylight in May: 14h and 30min
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 18min).
- Average sunshine in May: 8h and 18min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days in May
Center Valley, PA
- Average sunshine days in May: 12.7 days
The month with the most sunshine days is November (18 days).
The month with the least sunshine days is June (11.8 days).
Average UV index in May
Center Valley, 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
Center Valley, PA
- Average cloud cover in May: 48
The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is July (Cloud cover 33).
Average visibility in May
Center Valley, PA
- Average visibility in May: 5mi
The months with the highest visibility are March, April, June, July, August and November (6mi).
The months with the lowest visibility are January, February, May, September, October and December (5mi).
