May weather forecast
Haddon Heights, NJ

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Weather in May

May, the last month of the spring in Haddon Heights, is a pleasant month, with an average temperature ranging between max 72.1°F (22.3°C) and min 55°F (12.8°C).

Temperature

As May arrives, Haddon Heights's weather shows an increase in high-temperatures, moving from April's refreshing 61.9°F (16.6°C) to a pleasant 72.1°F (22.3°C). During May, Haddon Heights's temperature averages to a cool 55°F (12.8°C) at night.

Humidity

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

Rainfall

In Haddon Heights, in May, during 13.7 rainfall days, 1.26" (32mm) of precipitation is typically accumulated. In Haddon Heights, during the entire year, the rain falls for 121.5 days and collects up to 12.44" (316mm) of precipitation.

Snowfall

January through May, November and December are months with snowfall in Haddon Heights. May is the last month it regularly snows. During 0.1 snowfall days, in May, Haddon Heights aggregates 0.16" (4mm) of snow. Throughout the year, there are 10.3 snowfall days, and 2.36" (60mm) of snow is accumulated.

Daylight

In May, the average length of the day in Haddon Heights is 14h and 24min.
On the first day of the month, sunrise is at 5:59 am and sunset at 7:55 pm. On the last day of May, in Haddon Heights, sunrise is at 5:33 am and sunset at 8:22 pm EDT.

Sunshine

In Haddon Heights, the average sunshine in May is 8.5h.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for average individuals.
Note: During May, 6 as the daily maximum UV index converts into the following advice:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
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Frequently asked questions

What is the usual temperature for Haddon Heights in May?

May temperatures vary between a high-temperature of 72.1°F (22.3°C) and a low-temperature of 55°F (12.8°C).

What is the average humidity in May in Haddon Heights?

The average relative humidity in May is 75%.

How many days does it rain in May in Haddon Heights?

In Haddon Heights, New Jersey, during May, the rain falls for 13.7 days and regularly aggregates up to 1.26" (32mm) of precipitation.

What is the last month it snows in Haddon Heights?

May is the last month it regularly snows. During 0.1 snowfall days, in May, Haddon Heights aggregates 0.16" (4mm) of snow.

How many hours of daylight does Haddon Heights have in May?

In May, the average day length in Haddon Heights is 14h and 24min.

When are sunrise and sunset in May in Haddon Heights?

On the first day of May in Haddon Heights, New Jersey, sunrise is at 5:59 am and sunset at 7:55 pm. On the last day of the month, sunrise is at 5:33 am and sunset at 8:22 pm EDT.

How long on average sun shines in May in Haddon Heights?

The average sunshine duration in May in Haddon Heights is 8.5h.

What are the months with the highest UV index in Haddon Heights?

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

What is the UV index intensity in May in Haddon Heights?

In May, the average daily maximum UV index in Haddon Heights is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Haddon Heights, NJ

Average temperature in May - Haddon Heights, NJ
  • Average high temperature in May: 72.1°F

The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (37.8°F).

  • Average low temperature in May: 55°F

The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (25.5°F).

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Average pressure in May
Haddon Heights, NJ

Average pressure in May - Haddon Heights, 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 (29.94"Hg).

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Average wind speed in May
Haddon Heights, NJ

Average wind speed in May - Haddon Heights, NJ
  • Average wind speed in May: 7mph

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 (5.7mph).

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Average humidity in May
Haddon Heights, NJ

Average humidity in May - Haddon Heights, NJ
  • Average humidity in May: 75%

The month with the highest relative humidity is October (77%).
The month with the lowest relative humidity is April (70%).

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Average rainfall in May
Haddon Heights, NJ

Average rainfall in May - Haddon Heights, NJ
  • Average rainfall in May: 1.26"

The wettest month (with the highest rainfall) is August (1.46").
The driest month (with the least rainfall) is January (0.67").

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Average rainfall days in May
Haddon Heights, NJ

Average rainfall days in May - Haddon Heights, NJ
  • Average rainfall days in May: 13.7 days

The month with the highest number of rainy days is July (14.4 days).
The month with the least rainy days is November (6.6 days).

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Average snowfall in May
Haddon Heights, NJ

Average snowfall in May - Haddon Heights, NJ
  • Average snowfall in May: 0.16"

The month with the highest snowfall is February (0.79").
The months with the least snowfall are June, July, August, September and October (0").

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Average snowfall days in May
Haddon Heights, NJ

Average snowfall days in May - Haddon Heights, NJ
  • Average snowfall days in May: 0.1 days

The month with the highest number of snowfall days is January (3.6 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
Haddon Heights, NJ

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

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 48min).

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Average sunshine days in May
Haddon Heights, NJ

Average sunshine days in May - Haddon Heights, NJ
  • Average sunshine days in May: 14.5 days

The month with the most sunshine days is December (21.5 days).
The month with the least sunshine days is July (14 days).

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Average UV index in May
Haddon Heights, NJ

Average UV index in May - Haddon Heights, 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, November and December (UV index 2).

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Average cloud cover in May
Haddon Heights, NJ

Average cloud cover in May - Haddon Heights, NJ
  • Average cloud cover in May: 46

The month with the most cloud cover is February (Cloud cover 48).
The months with the least cloud cover are July and August (Cloud cover 32).

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Average visibility in May
Haddon Heights, NJ

Average visibility in May - Haddon Heights, NJ
  • 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).

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Haddon Heights, New Jersey, USA

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