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
Chester's May weather brings a rise in high-temperatures, moving from a comfortable 61.5°F (16.4°C) in April to a pleasant 72°F (22.2°C). Chester's temperature lowers to a mean of 55°F (12.8°C) during the nights in May.Humidity
In Chester, Pennsylvania, the average relative humidity in May is 76%.Rainfall
In Chester, in May, it is raining for 16.3 days, with typically 2.32" (59mm) of accumulated precipitation. In Chester, during the entire year, the rain falls for 148.4 days and collects up to 25.94" (659mm) of precipitation.Snowfall
Months with snowfall in Chester are January through May, November and December. May is the last month it regularly snows in Chester. During 0.1 snowfall days, in May, Chester aggregates 0.16" (4mm) of snow. In Chester, during the entire year, snow falls for 12.6 days and aggregates up to 7.28" (185mm) of snow.Daylight
In May, the average length of the day is 14h and 23min.On the first day of May, sunrise is at 6:00 am and sunset at 7:56 pm. On the last day of the month, sunrise is at 5:35 am and sunset at 8:23 pm EDT.
Sunshine
In May, the average sunshine is 8.7h.UV index
May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: During May, 6 as the daily maximum UV index converts into the following advice:
Take precautions against overexposure. Protection against sun damage is needed. Attempt to stay under shade and limit exposure to the Sun between 10 a.m. and 4 p.m., when UV radiation is at its peak. Remember, devices such as parasols or canopies might not provide complete sun protection. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Keep in mind! Snow's reflective quality can nearly double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average May temperature in Chester?
What is the average humidity in May?
How much does it rain in May?
What is the last month it snows?
How many hours of daylight does Chester have in May?
What time are sunrise and sunset in May in Chester?
How many hours of sunshine does Chester have in May?
What are the months with the highest UV index?
What is the UV index reading in May?
Average temperature in May
Chester, PA
- Average high temperature in May: 72°F
The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (37.4°F).
- Average low temperature in May: 55°F
The month with the highest average low temperature is July (68.7°F).
The coldest month (with the lowest average low temperature) is January (25.7°F).
Average pressure in May
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
Chester, PA
- Average wind speed in May: 6.8mph
The windiest month (with the highest average wind speed) is March (8.6mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).
Average humidity in May
Chester, PA
- Average humidity in May: 76%
The months with the highest relative humidity are February, October and December (77%).
The month with the lowest relative humidity is April (71%).
Average rainfall in May
Chester, PA
- Average rainfall in May: 2.32"
The wettest month (with the highest rainfall) is August (3.11").
The driest month (with the least rainfall) is January (1.61").
Average rainfall days in May
Chester, PA
- Average rainfall days in May: 16.3 days
The month with the highest number of rainy days is July (17 days).
The month with the least rainy days is January (7.1 days).
Average snowfall in May
Chester, PA
- Average snowfall in May: 0.16"
The month with the highest snowfall is March (2.32").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in May
Chester, PA
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is February (3.8 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
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 4min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).
Average sunshine days in May
Chester, PA
- Average sunshine days in May: 12.7 days
The month with the most sunshine days is January (20.8 days).
The month with the least sunshine days is July (11.3 days).
Average UV index in May
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, November and December (UV index 2).
Average cloud cover in May
Chester, PA
- Average cloud cover in May: 45
The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility in May
Chester, PA
- Average visibility in May: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Chester, Pennsylvania, USA
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