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 start of May brings a rise in the average high-temperature, moving from a moderate 57.2°F (14°C) in April to a pleasant 68°F (20°C). May generally records an average low-temperature of 49.5°F (9.7°C).Humidity
The average relative humidity in May in East William Penn is 81%.Rainfall
May is the month with the most rainfall in East William Penn. Rain falls for 19 days and accumulates 3.39" (86mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in East William Penn. May is the last month it regularly snows in East William Penn. During 0.3 snowfall days, in May, East William Penn aggregates 0.31" (8mm) of snow. Throughout the year, there are 48.5 snowfall days, and 27.72" (704mm) 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 6:02 am and sunset at 8:01 pm. On the last day of the month, sunrise is at 5:35 am and sunset at 8:29 pm EDT.
Sunshine
In East William Penn, the average sunshine in May is 8.3h.UV index
The months with the highest UV index in East William Penn, Pennsylvania, are May through August, with an average maximum UV index of 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for average individuals.Note: The average daily UV index of 5 in May transforms into the following instructions:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Keep in mind! Snow's reflective quality can nearly double the intensity of the Sun's UV radiation.
Frequently asked questions
What is the average May temperature in East William Penn?
What is the average humidity in May in East William Penn?
What is the rainiest month in East William Penn?
How many days does it rain in May in East William Penn?
What is the last month it snows in East William Penn?
What is the average length of the day in May in East William Penn?
When are sunrise and sunset in May in East William Penn?
How many hours of sunshine does East William Penn have in May?
What are the months with the highest UV index in East William Penn?
What is the UV index reading in May in East William Penn?
Average temperature in May
East William Penn, PA
- Average high temperature in May: 68°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (31.8°F).
- Average low temperature in May: 49.5°F
The month with the highest average low temperature is July (61.2°F).
The coldest month (with the lowest average low temperature) is January (19.6°F).
Average pressure in May
East William Penn, 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
East William Penn, PA
- Average wind speed in May: 6.3mph
The windiest month (with the highest average wind speed) is March (8.3mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in May
East William Penn, PA
- Average humidity in May: 81%
The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is April (77%).
Average rainfall in May
East William Penn, PA
- Average rainfall in May: 3.39"
The wettest month (with the highest rainfall) is May (3.39").
The driest month (with the least rainfall) is September (1.97").
Average rainfall days in May
East William Penn, PA
- Average rainfall days in May: 19 days
The month with the highest number of rainy days is May (19 days).
The month with the least rainy days is January (9.7 days).
Average snowfall in May
East William Penn, PA
- Average snowfall in May: 0.31"
The month with the highest snowfall is January (7.24").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
East William Penn, PA
- Average snowfall days in May: 0.3 days
The month with the highest number of snowfall days is January (12.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
East William Penn, 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 2min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The months with the least sunshine are January and February (Average sunshine: 4h and 18min).
Average sunshine days in May
East William Penn, PA
- Average sunshine days in May: 9.1 days
The month with the most sunshine days is November (15.8 days).
The month with the least sunshine days is May (9.1 days).
Average UV index in May
East William Penn, PA
- Average UV index in May: 5
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in May
East William Penn, PA
- Average cloud cover in May: 49
The month with the most cloud cover is February (Cloud cover 55).
The month with the least cloud cover is July (Cloud cover 33).
Average visibility in May
East William Penn, 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).
East William Penn, Pennsylvania, USA
Weather forecast for your location
2. Allow the app to use your location
