May weather forecast
Haddonfield, NJ

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Weather in May

The last month of the spring, May, is an agreeable month in Haddonfield, New Jersey, with temperature in the range of an average high of 72.1°F (22.3°C) and an average low of 55°F (12.8°C).

Temperature

May's onset is marked by a temperature increase, moving from a comfortable 61.9°F (16.6°C) in April to an agreeable 72.1°F (22.3°C). Throughout the month of May, Haddonfield witnesses an average temperature of 55°F (12.8°C).

Humidity

In May, the average relative humidity is 75%.

Rainfall

In Haddonfield, during May, the rain falls for 13.7 days and regularly aggregates up to 1.26" (32mm) of precipitation. Throughout the year, there are 121.5 rainfall days, and 12.44" (316mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, November and December. May is the last month it regularly snows in Haddonfield. During 0.1 snowfall days, in May, Haddonfield aggregates 0.16" (4mm) of snow. In Haddonfield, during the entire year, snow falls for 10.3 days and aggregates up to 2.36" (60mm) of snow.

Daylight

In Haddonfield, the average length of the day in May 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, sunrise is at 5:33 am and sunset at 8:22 pm EDT.

Sunshine

In Haddonfield, 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 value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: The maximum daily UV index of 6 in May interprets into the following recommendations:
Incorporate safeguards and honour sun safety principles. Protection from skin and eye damage is obligatory. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. Stay sun-safe with clothing that is both closely woven and worn loosely. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.
Updated: Jul 13, 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 during May is 72.1°F (22.3°C) and the low-temperature is 55°F (12.8°C).

What is the average humidity in May?

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

How much does it rain in Haddonfield in May?

In Haddonfield, in May, it is raining for 13.7 days, with typically 1.26" (32mm) of accumulated precipitation.

What is the last month it snows?

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

How many hours of daylight does Haddonfield have in May?

In Haddonfield, New Jersey, the average day length in May is 14h and 24min.

When is the sunrise / sunset in May?

On the first day of May, 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 Haddonfield, the average sunshine duration in May is 8.5h.

When is the highest UV index?

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 May, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high health risk from unsafe exposure to Sun's UV rays.
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
Haddonfield, NJ

Average temperature in May - Haddonfield, 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).

Average pressure in May
Haddonfield, NJ

Average pressure in May - Haddonfield, 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).

Average wind speed in May
Haddonfield, NJ

Average wind speed in May - Haddonfield, 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).

Average humidity in May
Haddonfield, NJ

Average humidity in May - Haddonfield, 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%).

Average rainfall in May
Haddonfield, NJ

Average rainfall in May - Haddonfield, 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").

Average rainfall days in May
Haddonfield, NJ

Average rainfall days in May - Haddonfield, 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).

Average snowfall in May
Haddonfield, NJ

Average snowfall in May - Haddonfield, 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").

Average snowfall days in May
Haddonfield, NJ

Average snowfall days in May - Haddonfield, 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).

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

Average daylight in May / Average sunshine in May - Haddonfield, 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).

Average sunshine days in May
Haddonfield, NJ

Average sunshine days in May - Haddonfield, 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).

Average UV index in May
Haddonfield, NJ

Average UV index in May - Haddonfield, 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).

Average cloud cover in May
Haddonfield, NJ

Average cloud cover in May - Haddonfield, 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).

Average visibility in May
Haddonfield, NJ

Average visibility in May - Haddonfield, 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).

Haddonfield, New Jersey, USA

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