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
May's onset brings a temperature rise, moving from a mild 59.7°F (15.4°C) in April to a pleasant 71.1°F (21.7°C). During May, Penn's temperature averages to a cool 50°F (10°C) at night.Humidity
In Penn, the average relative humidity in May is 78%.Rainfall
The month with the most rainfall in Penn is May, when the rain falls for 20.1 days and typically aggregates up to 3.78" (96mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. May is the last month it regularly snows in Penn, Pennsylvania. During 0.2 snowfall days, in May, Penn aggregates 0.12" (3mm) of snow. Throughout the year, in Penn, there are 65 snowfall days, and 28.98" (736mm) of snow is accumulated.Daylight
In May, the average length of the day is 14h and 26min.On the first day of May in Penn, sunrise is at 6:16 am and sunset at 8:14 pm. On the last day of the month, sunrise is at 5:50 am and sunset at 8:41 pm EDT.
Sunshine
In May, the average sunshine is 8.8h.UV index
In Penn, the average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: The daily maximum UV index of 5 in May interprets into the following advice:
Take necessary precautions - Suggestions to elude sunburn are provided. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
Frequently asked questions
What is the usual temperature for Penn in May?
What is the average humidity in May in Penn?
What is the wettest month in Penn?
How many days does it rain in May in Penn?
What is the last month it snows in Penn?
What is the average length of the day in May in Penn?
What time are sunrise and sunset in May in Penn?
How many hours of sunshine does Penn have in May?
What is the UV index reading in May in Penn?
Average temperature in May
Penn, PA
- Average high temperature in May: 71.1°F
The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is January (32.9°F).
- Average low temperature in May: 50°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 (20.5°F).
Average pressure in May
Penn, 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
Penn, PA
- Average wind speed in May: 6.3mph
The windiest month (with the highest average wind speed) is January (8.3mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).
Average humidity in May
Penn, PA
- Average humidity in May: 78%
The months with the highest relative humidity are January and February (85%).
The months with the lowest relative humidity are April, July and August (77%).
Average rainfall in May
Penn, PA
- Average rainfall in May: 3.78"
The wettest month (with the highest rainfall) is May (3.78").
The driest month (with the least rainfall) is November (2.09").
Average rainfall days in May
Penn, PA
- Average rainfall days in May: 20.1 days
The month with the highest number of rainy days is May (20.1 days).
The month with the least rainy days is January (9.5 days).
Average snowfall in May
Penn, PA
- Average snowfall in May: 0.12"
The month with the highest snowfall is January (7.05").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Penn, PA
- Average snowfall days in May: 0.2 days
The month with the highest number of snowfall days is January (18.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Penn, PA
- Average daylight in May: 14h and 2min
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 5min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 2h and 54min).
Average sunshine days in May
Penn, PA
- Average sunshine days in May: 9.2 days
The month with the most sunshine days is November (14 days).
The month with the least sunshine days is February (6.7 days).
Average UV index in May
Penn, PA
- Average UV index in May: 5
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in May
Penn, PA
- Average cloud cover in May: 45
The month with the most cloud cover is January (Cloud cover 70).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in May
Penn, 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).
Penn, Pennsylvania, USA
Weather forecast for your location
2. Allow the app to use your location
