May weather forecast
Delanco, NJ

Weather in May

The last month of the spring, May, is an agreeable month in Delanco, New Jersey, with an average temperature fluctuating between 71.8°F (22.1°C) and 54.5°F (12.5°C).

Temperature

In May, the average high-temperature rises from an enjoyable 61.7°F (16.5°C) in April to a pleasant 71.8°F (22.1°C). The average low-temperature, in May, is 54.5°F (12.5°C).

Humidity

The average relative humidity in May is 75%.

Rainfall

In May, in Delanco, New Jersey, the rain falls for 17.3 days. Throughout May, 2.8" (71mm) of precipitation is accumulated. Throughout the year, in Delanco, there are 153.8 rainfall days, and 30.94" (786mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Delanco are January through May, November and December. May is the last month it regularly snows. During 0.1 snowfall days, in May, Delanco aggregates 0.2" (5mm) of snow. In Delanco, during the entire year, snow falls for 16.8 days and aggregates up to 8.5" (216mm) of snow.

Daylight

In May, the average length of the day is 14h and 25min.
On the first day of the month, sunrise is at 5:59 am and sunset at 7:54 pm. On the last day of May, in Delanco, sunrise is at 5:33 am and sunset at 8:21 pm EDT.

Sunshine

In Delanco, the average sunshine in May is 8.4h.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for the average person.
Note: The average daily UV index of 6 in May transform into the following instructions:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the average humidity in May in Delanco?

In Delanco, the average relative humidity in May is 75%.

How much does it rain in Delanco in May?

In May, in Delanco, the rain falls for 17.3 days. Throughout May, 2.8" (71mm) of precipitation is accumulated.

What is the last month it snows in Delanco?

May is the last month it regularly snows in Delanco, New Jersey. During 0.1 snowfall days, in May, Delanco aggregates 0.2" (5mm) of snow.

How many hours of daylight does Delanco have in May?

In Delanco, the average day length in May is 14h and 25min.

When is the sunrise / sunset in May in Delanco?

In May, on the first day of the month, sunrise is at 5:59 am and sunset at 7:54 pm. On the last day of the month, in Delanco, sunrise is at 5:33 am and sunset at 8:21 pm EDT.

How many hours of sunshine does Delanco have in May?

The average sunshine duration in May in Delanco is 8.4h.

What are the months with the highest UV index in Delanco?

The months with the highest UV index are May through August, with an average maximum UV index of 6.

How high is the UV index in May in Delanco?

In May, the average daily maximum UV index in Delanco, New Jersey, is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation.

Average temperature in May
Delanco, NJ

Average temperature in May - Delanco, NJ
  • Average high temperature in May: 71.8°F

The warmest month (with the highest average high temperature) is July (86.4°F).
The month with the lowest average high temperature is January (37.4°F).

  • Average low temperature in May: 54.5°F

The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (25.2°F).

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Average pressure in May
Delanco, NJ

Average pressure in May - Delanco, NJ
  • 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 (29.93"Hg).

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Average wind speed in May
Delanco, NJ

Average wind speed in May - Delanco, NJ
  • Average wind speed in May: 6.8mph

The windiest months (with the highest average wind speed) are March and April (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).

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Average humidity in May
Delanco, NJ

Average humidity in May - Delanco, NJ
  • Average humidity in May: 75%

The months with the highest relative humidity are February and October (77%).
The months with the lowest relative humidity are April, July and August (71%).

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Average rainfall in May
Delanco, NJ

Average rainfall in May - Delanco, NJ
  • Average rainfall in May: 2.8"

The wettest month (with the highest rainfall) is July (3.39").
The driest month (with the least rainfall) is January (1.89").

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Average rainfall days in May
Delanco, NJ

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

The month with the highest number of rainy days is July (18.5 days).
The month with the least rainy days is November (7.5 days).

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Average snowfall in May
Delanco, NJ

Average snowfall in May - Delanco, NJ
  • Average snowfall in May: 0.2"

The month with the highest snowfall is March (2.76").
The months with the least snowfall are June, July, August, September and October (0").

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Average snowfall days in May
Delanco, NJ

Average snowfall days in May - Delanco, NJ
  • Average snowfall days in May: 0.1 days

The month with the highest number of snowfall days is January (5.2 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

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

Average daylight in May / Average sunshine in May - Delanco, NJ
  • Average daylight in May: 14h and 25min

The month with the longest days is June (Average daylight: 14h and 58min).
The month with the shortest days is December (Average daylight: 9h and 23min).

  • Average sunshine in May: 8.4h

The month with the most sunshine is July (Average sunshine: 10.5h).
The month with the least sunshine is February (Average sunshine: 4.7h).

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Average sunshine days in May
Delanco, NJ

Average sunshine days in May - Delanco, NJ
  • Average sunshine days in May: 11.9 days

The month with the most sunshine days is November (21.2 days).
The month with the least sunshine days is July (10.4 days).

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Average UV index in May
Delanco, NJ

Average UV index in May - Delanco, NJ
  • 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).

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Average cloud cover in May
Delanco, NJ

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

The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 33).

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Average visibility in May
Delanco, NJ

Average visibility in May - Delanco, NJ
  • 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).

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