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 shift into May in West Chester is characterized by a rise in the average high-temperature, transitioning from April's refreshing 61°F (16.1°C) to an agreeable 71.2°F (21.8°C). West Chester experiences a mean low-temperature of 54°F (12.2°C) during May.Humidity
In May, the average relative humidity in West Chester, Pennsylvania, is 78%.Rainfall
In May, in West Chester, Pennsylvania, the rain falls for 14 days. Throughout May, 1.46" (37mm) of precipitation is accumulated. Throughout the year, in West Chester, Pennsylvania, there are 128.5 rainfall days, and 14.92" (379mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, November and December. May is the last month it regularly snows. During 0.1 snowfall days, in May, West Chester aggregates 0.08" (2mm) of snow. Throughout the year, there are 18.1 snowfall days, and 5.43" (138mm) of snow is accumulated.Daylight
The average length of the day in May in West Chester is 14h and 24min.On the first day of the month, sunrise is at 6:01 am and sunset at 7:57 pm. On the last day of May, in West Chester, sunrise is at 5:35 am and sunset at 8:24 pm EDT.
Sunshine
The average sunshine in May 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 reading of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The daily maximum UV index of 6 in May interprets into the following advice:
Undertake precautions and comply with sun safety standards. Protection from skin and eye injury is vital. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. Opt for tightly woven and loose clothing to enhance protection from the Sun. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
Frequently asked questions
What is the usual temperature for West Chester in May?
What is the average humidity in May in West Chester?
How many days does it rain in May in West Chester?
What is the last month it snows in West Chester?
How many hours of daylight does West Chester have in May?
When is the sunrise / sunset in May in West Chester?
How long on average sun shines in May in West Chester?
What are the months with the highest UV index in West Chester?
What is the UV index reading in May in West Chester?
Average temperature in May
West Chester, PA
- Average high temperature in May: 71.2°F
The warmest month (with the highest average high temperature) is July (84.9°F).
The month with the lowest average high temperature is January (36.5°F).
- Average low temperature in May: 54°F
The month with the highest average low temperature is July (67.1°F).
The coldest month (with the lowest average low temperature) is January (24.4°F).
Average pressure in May
West Chester, 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
West Chester, PA
- Average wind speed in May: 6.6mph
The windiest month (with the highest average wind speed) is March (8.6mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in May
West Chester, PA
- Average humidity in May: 78%
The months with the highest relative humidity are February and October (79%).
The month with the lowest relative humidity is April (73%).
Average rainfall in May
West Chester, PA
- Average rainfall in May: 1.46"
The wettest month (with the highest rainfall) is August (2.01").
The driest month (with the least rainfall) is January (0.83").
Average rainfall days in May
West Chester, PA
- Average rainfall days in May: 14 days
The month with the highest number of rainy days is July (15.3 days).
The month with the least rainy days is January (5.7 days).
Average snowfall in May
West Chester, PA
- Average snowfall in May: 0.08"
The month with the highest snowfall is March (1.54").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in May
West Chester, PA
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is January (5.5 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in May /
Average sunshine in May
West Chester, 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 2min
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
West Chester, PA
- Average sunshine days in May: 13.9 days
The month with the most sunshine days is November (21.7 days).
The month with the least sunshine days is August (13.1 days).
Average UV index in May
West Chester, 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
West Chester, 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
West Chester, 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).
West Chester, Pennsylvania, USA
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