May weather forecastThorndale, PA
May
Weather in May
May, the last month of the spring in Thorndale, is a pleasant month, with temperature in the range of an average high of 70.9°F (21.6°C) and an average low of 52.3°F (11.3°C).Temperature
May's arrival coincides with a rise in the average high-temperature, moving from April's refreshing 60.3°F (15.7°C) to a pleasant 70.9°F (21.6°C). Thorndale experiences a nighttime temperature average of 52.3°F (11.3°C) during May.Humidity
The months with the highest humidity are February, May and October, with an average relative humidity of 80%.Rainfall
In May, the rain falls for 16.8 days. Throughout May, 2.6" (66mm) of precipitation is accumulated. In Thorndale, during the entire year, the rain falls for 145.6 days and collects up to 26.81" (681mm) 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, Thorndale aggregates 0.12" (3mm) of snow. Throughout the year, there are 17.2 snowfall days, and 10.47" (266mm) of snow is accumulated.Daylight
The average length of the day in May is 14h and 25min.On the first day of the month, sunrise is at 6:01 am and sunset at 7:58 pm. On the last day of May, sunrise is at 5:36 am and sunset at 8:25 pm EDT.
Sunshine
In May, the average sunshine is 8.3h.UV index
May through August, 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 unsafe exposure to UV radiation for average individuals.Note: In May, the UV index of 6 transforms into the following advice:
Prevent overexposure. Protection from the sun's harmful effects is needed. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Thorndale, PA
- Average high temperature in May: 70.9°F
The warmest month (with the highest average high temperature) is July (84°F).
The month with the lowest average high temperature is January (35.4°F).
- Average low temperature in May: 52.3°F
The month with the highest average low temperature is July (66.2°F).
The coldest month (with the lowest average low temperature) is January (23.7°F).
Average pressure in May
Thorndale, 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
Thorndale, PA
- Average wind speed in May: 6.5mph
The windiest months (with the highest average wind speed) are January and March (8.5mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).
Average humidity in May
Thorndale, PA
- Average humidity in May: 80%
The months with the highest relative humidity are February, May and October (80%).
The month with the lowest relative humidity is April (75%).
Average rainfall in May
Thorndale, PA
- Average rainfall in May: 2.6"
The wettest month (with the highest rainfall) is August (3.31").
The driest month (with the least rainfall) is February (1.61").
Average rainfall days in May
Thorndale, PA
- Average rainfall days in May: 16.8 days
The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is January (6.7 days).
Average snowfall in May
Thorndale, PA
- Average snowfall in May: 0.12"
The month with the highest snowfall is March (3.46").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Thorndale, PA
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is February (4.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Thorndale, 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 36min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in May
Thorndale, PA
- Average sunshine days in May: 12.3 days
The month with the most sunshine days is December (20.5 days).
The month with the least sunshine days is May (12.3 days).
Average UV index in May
Thorndale, 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
Thorndale, PA
- Average cloud cover in May: 48
The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in May
Thorndale, 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).





