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 average high-temperature increases in May, moving from a mild 55.6°F (13.1°C) in April to a comfortable 67.6°F (19.8°C). The temperature in Folstown dips to an average of 47.8°F (8.8°C) during May nights.Humidity
In May, the average relative humidity is 80%.Rainfall
In Folstown, in May, it is raining for 19.1 days, with typically 2.87" (73mm) of accumulated precipitation. Throughout the year, there are 162.5 rainfall days, and 30.35" (771mm) of precipitation is accumulated.Snowfall
Months with snowfall in Folstown are January through May, October through December. May is the last month it regularly snows in Folstown. During 0.3 snowfall days, in May, Folstown aggregates 0.24" (6mm) of snow. In Folstown, during the entire year, snow falls for 41.1 days and aggregates up to 21.38" (543mm) of snow.Daylight
In May, the average length of the day is 14h and 31min.On the first day of May in Folstown, Pennsylvania, sunrise is at 6:00 am and sunset at 8:01 pm. On the last day of the month, sunrise is at 5:33 am and sunset at 8:30 pm EDT.
Sunshine
The average sunshine in May is 8h.UV index
The months with the highest UV index in Folstown are May through August, with an average maximum UV index of 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for the average person.Note: A daily maximum UV index of 5 in May translates into the following instructions:
Ensure safety - Imperative it is to shield skin and eyes from damage. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.
Frequently asked questions
What is the average May temperature in Folstown?
What is the average humidity in May in Folstown?
How many days does it rain in May in Folstown?
What is the last month it snows in Folstown?
What is the average length of the day in May in Folstown?
When is the sunrise / sunset in May in Folstown?
How many hours of sunshine does Folstown have in May?
What are the months with the highest UV index in Folstown?
What is the UV index reading in May in Folstown?
Average temperature in May
Folstown, PA
- Average high temperature in May: 67.6°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (30.6°F).
- Average low temperature in May: 47.8°F
The month with the highest average low temperature is July (59°F).
The coldest month (with the lowest average low temperature) is January (18.5°F).
Average pressure in May
Folstown, 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
Folstown, PA
- Average wind speed in May: 6.5mph
The windiest months (with the highest average wind speed) are March and April (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).
Average humidity in May
Folstown, PA
- Average humidity in May: 80%
The month with the highest relative humidity is February (84%).
The months with the lowest relative humidity are April and July (78%).
Average rainfall in May
Folstown, PA
- Average rainfall in May: 2.87"
The wettest month (with the highest rainfall) is July (3.23").
The driest months (with the least rainfall) are January and September (2.09").
Average rainfall days in May
Folstown, PA
- Average rainfall days in May: 19.1 days
The month with the highest number of rainy days is May (19.1 days).
The month with the least rainy days is February (8.2 days).
Average snowfall in May
Folstown, PA
- Average snowfall in May: 0.24"
The month with the highest snowfall is February (6.42").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Folstown, PA
- Average snowfall days in May: 0.3 days
The month with the highest number of snowfall days is January (11.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Folstown, 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 0min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The months with the least sunshine are January and February (Average sunshine: 3h and 42min).
Average sunshine days in May
Folstown, PA
- Average sunshine days in May: 10.4 days
The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is July (9.1 days).
Average UV index in May
Folstown, 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
Folstown, PA
- Average cloud cover in May: 51
The month with the most cloud cover is February (Cloud cover 61).
The month with the least cloud cover is July (Cloud cover 37).
Average visibility in May
Folstown, 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).
Folstown, Pennsylvania, USA
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