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
May
Weather in May
Temperature
The shift into May is characterized by a subtle rise in the average high-temperature, transitioning from April's moderate 15.7°C (60.3°F) to an enjoyable 19.3°C (66.7°F). May sees the temperature falling to a mean low of 8.6°C (47.5°F).Humidity
In May, the average relative humidity in Philadelphia is 71%.Rainfall
In Philadelphia, in May, during 14.7 rainfall days, 24mm (0.94") of precipitation is typically accumulated. In Philadelphia, during the entire year, the rain falls for 142 days and collects up to 267mm (10.51") of precipitation.Snowfall
May through October are months without snowfall in Philadelphia.Daylight
In Philadelphia, the average length of the day in May is 15h and 44min.On the first day of May, sunrise is at 05:32 and sunset at 20:30. On the last day of the month, sunrise is at 04:49 and sunset at 21:15 CEST.
Sunshine
The average sunshine in May in Philadelphia is 8.6h.UV index
In Philadelphia, the average daily maximum UV index in May is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: The maximum UV index, 4 during May, leads to the following recommendations:
Exercise prevention - Protecting skin and eyes from harm is required. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average May temperature in Philadelphia?
What is the average humidity in May in Philadelphia?
How many days does it rain in May in Philadelphia?
When it does not snow in Philadelphia?
Does it snow in Philadelphia in May?
What is the average length of the day in May in Philadelphia?
When are sunrise and sunset in May in Philadelphia?
How many hours of sunshine does Philadelphia have in May?
How high is the UV index in May in Philadelphia?
Average temperature in May
Philadelphia, Germany
- Average high temperature in May: 19.3°C
The warmest month (with the highest average high temperature) is August (25.3°C).
The month with the lowest average high temperature is January (2.3°C).
- Average low temperature in May: 8.6°C
The month with the highest average low temperature is August (15.2°C).
The coldest month (with the lowest average low temperature) is January (-2°C).
Average pressure in May
Philadelphia, Germany
- Average pressure in May: 1015.7mbar
The month with the highest atmospheric pressure is October (1017.4mbar).
The month with the lowest atmospheric pressure is November (1014.3mbar).
Average wind speed in May
Philadelphia, Germany
- Average wind speed in May: 11.5km/h
The windiest month (with the highest average wind speed) is December (14.5km/h).
The calmest month (with the lowest average wind speed) is August (10.1km/h).
Average humidity in May
Philadelphia, Germany
- Average humidity in May: 71%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is August (67%).
Average rainfall in May
Philadelphia, Germany
- Average rainfall in May: 24mm
The wettest month (with the highest rainfall) is July (39mm).
The driest month (with the least rainfall) is April (11mm).
Average rainfall days in May
Philadelphia, Germany
- Average rainfall days in May: 14.7 days
The month with the highest number of rainy days is July (14.8 days).
The month with the least rainy days is February (8.8 days).
Average snowfall in May
Philadelphia, Germany
- Average snowfall in May: 0mm
The month with the highest snowfall is January (37mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in May
Philadelphia, Germany
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (9 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in May /
Average sunshine in May
Philadelphia, Germany
- Average daylight in May: 15h and 4min
The month with the longest days is June (Average daylight: 16h and 42min).
The month with the shortest days is December (Average daylight: 7h and 48min).
- Average sunshine in May: 8h and 4min
The month with the most sunshine is August (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).
Average sunshine days in May
Philadelphia, Germany
- Average sunshine days in May: 13.8 days
The months with the most sunshine days are September and October (16.9 days).
The month with the least sunshine days is December (12.4 days).
Average UV index in May
Philadelphia, Germany
- Average UV index in May: 4
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is November (UV index 1).
Average cloud cover in May
Philadelphia, Germany
- Average cloud cover in May: 45
The month with the most cloud cover is January (Cloud cover 69).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in May
Philadelphia, Germany
- Average visibility in May: 9km
The month with the highest visibility is June (10km).
The months with the lowest visibility are January, February, November and December (8km).
