May weather forecast
Chester, NJ

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Weather in May

May, the last month of the spring in Chester, is an agreeable month, with an average temperature varying between 69.6°F (20.9°C) and 50.9°F (10.5°C).

Temperature

Chester's weather in May presents a rise in the average high-temperature, moving from a mild 58.6°F (14.8°C) in April to a pleasant 69.6°F (20.9°C). May nights are marked by an average temperature drop to a cool 50.9°F (10.5°C).

Humidity

In May, the average relative humidity is 78%.

Rainfall

In Chester, New Jersey, in May, it is raining for 17.3 days, with typically 3.11" (79mm) of accumulated precipitation. In Chester, during the entire year, the rain falls for 162.6 days and collects up to 33.11" (841mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. May is the last month it regularly snows. During 0.2 snowfall days, in May, Chester aggregates 0.55" (14mm) of snow. Throughout the year, there are 28.5 snowfall days, and 14.49" (368mm) of snow is accumulated.

Daylight

In Chester, the average length of the day in May is 14h and 28min.
On the first day of May, sunrise is at 5:56 am and sunset at 7:55 pm. On the last day of the month, sunrise is at 5:29 am and sunset at 8:23 pm EDT.

Sunshine

In Chester, the average sunshine in May is 8.5h.

UV index

In May, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: In May, the maximum UV index of 5 suggests these recommendations:
Undertake protective steps - Recommendations to avoid sunburn are issued. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
Updated: Jul 22, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average May temperature?

The high-temperature, in May, in Chester, records 69.6°F (20.9°C), while the low-temperature is 50.9°F (10.5°C).

What is the average humidity in May?

In Chester, New Jersey, the average relative humidity in May is 78%.

How much does it rain in May?

In May, the rain falls for 17.3 days. Throughout May, 3.11" (79mm) of precipitation is accumulated.

What is the last month it snows in Chester?

May is the last month it regularly snows. During 0.2 snowfall days, in May, Chester aggregates 0.55" (14mm) of snow.

What is the average length of the day in May?

In Chester, the average day length in May is 14h and 28min.

What time are sunrise and sunset in May?

On the first day of May, sunrise is at 5:56 am and sunset at 7:55 pm. On the last day of the month, sunrise is at 5:29 am and sunset at 8:23 pm EDT.

How many hours of sunshine does Chester have in May?

The average sunshine duration in May is 8.5h.

How high is the UV index in May?

In May, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a medium hazard to health from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Chester, NJ

Average temperature in May - Chester, NJ
  • Average high temperature in May: 69.6°F

The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (35.1°F).

  • Average low temperature in May: 50.9°F

The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (22.3°F).

Average pressure in May
Chester, NJ

Average pressure in May - Chester, NJ
  • Average pressure in May: 30.01"Hg

The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in May
Chester, NJ

Average wind speed in May - Chester, NJ
  • Average wind speed in May: 6.4mph

The windiest month (with the highest average wind speed) is March (8.3mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).

Average humidity in May
Chester, NJ

Average humidity in May - Chester, NJ
  • Average humidity in May: 78%

The months with the highest relative humidity are February and October (80%).
The month with the lowest relative humidity is April (75%).

Average rainfall in May
Chester, NJ

Average rainfall in May - Chester, NJ
  • Average rainfall in May: 3.11"

The wettest month (with the highest rainfall) is December (3.39").
The driest month (with the least rainfall) is September (1.85").

Average rainfall days in May
Chester, NJ

Average rainfall days in May - Chester, NJ
  • Average rainfall days in May: 17.3 days

The months with the highest number of rainy days are May and July (17.3 days).
The month with the least rainy days is January (8.9 days).

Average snowfall in May
Chester, NJ

Average snowfall in May - Chester, NJ
  • Average snowfall in May: 0.55"

The month with the highest snowfall is March (4.49").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in May
Chester, NJ

Average snowfall days in May - Chester, NJ
  • Average snowfall days in May: 0.2 days

The month with the highest number of snowfall days is January (8.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in May /
Average sunshine in May
Chester, NJ

Average daylight in May / Average sunshine in May - Chester, NJ
  • 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 3min

The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

Average sunshine days in May
Chester, NJ

Average sunshine days in May - Chester, NJ
  • Average sunshine days in May: 11.4 days

The month with the most sunshine days is November (17.6 days).
The month with the least sunshine days is May (11.4 days).

Average UV index in May
Chester, NJ

Average UV index in May - Chester, NJ
  • Average UV index in May: 5

The months with the highest UV index are June and July (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
Chester, NJ

Average cloud cover in May - Chester, NJ
  • Average cloud cover in May: 47

The months with the most cloud cover are February and December (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 33).

Average visibility in May
Chester, NJ

Average visibility in May - Chester, NJ
  • Average visibility in May: 5mi

The months with the highest visibility are January, February, March, April, June, July, August, November and December (6mi).
The months with the lowest visibility are May, September and October (5mi).

Chester, New Jersey, USA

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