May weather forecast
Blackwood, NJ

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Weather in May

May, the last month of the spring in Blackwood, is a pleasant month, with temperature in the range of an average low of 55°F (12.8°C) and an average high of 72°F (22.2°C).

Temperature

The onset of May marks an increase in the average high-temperature, moving from an enjoyable 62.1°F (16.7°C) in April to a pleasant 72°F (22.2°C). Blackwood anticipates an average minimum temperature of 55°F (12.8°C) in the month of May.

Humidity

In May, the average relative humidity is 75%.

Rainfall

In Blackwood, in May, it is raining for 13.1 days, with typically 1.02" (26mm) of accumulated precipitation. In Blackwood, during the entire year, the rain falls for 117 days and collects up to 12.13" (308mm) of precipitation.

Snowfall

Months with snowfall are January through March, May, November and December. May is the first month it typically snows. Throughout May, in the average 0.1 snowfall days, it receives 0.12" (3mm) of snow. Throughout the year, there are 11.4 snowfall days, and 3.11" (79mm) of snow is accumulated.

Daylight

In May, the average length of the day is 14h and 23min.
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, sunrise is at 5:34 am and sunset at 8:22 pm EDT.

Sunshine

In May, the average sunshine in Blackwood 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 value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: The average daily UV index of 6 in May transforms into the following instructions:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.
Updated: Jul 20, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are May temperatures?

In May, the average high-temperature and low-temperature are 72°F (22.2°C) and 55°F (12.8°C) respectively.

What is the average humidity in May?

The average relative humidity in May in Blackwood is 75%.

How many days does it rain in May?

In Blackwood, in May, during 13.1 rainfall days, 1.02" (26mm) of precipitation is typically accumulated.

When does it start snowing?

May is the first month it typically snows. Throughout May, in the average 0.1 snowfall days, it receives 0.12" (3mm) of snow.

What is the average length of the day in May in Blackwood?

The average day length in May is 14h and 23min.

When is the sunrise / sunset in May?

On the first day of May, sunrise is at 5:59 am and sunset at 7:54 pm. On the last day of the month, sunrise is at 5:34 am and sunset at 8:22 pm EDT.

How long on average sun shines in May?

In May, the average sunshine duration in Blackwood, New Jersey, is 8.7h.

What are the months with the highest UV index?

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

What is the UV index intensity in May?

In Blackwood, the average daily maximum UV index in May is 6. A UV Index value of 6 to 7 symbolizes a high hazard to health 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
Blackwood, NJ

Average temperature in May - Blackwood, NJ
  • Average high temperature in May: 72°F

The warmest month (with the highest average high temperature) is July (85.8°F).
The month with the lowest average high temperature is January (37.9°F).

  • Average low temperature in May: 55°F

The month with the highest average low temperature is July (69.3°F).
The coldest month (with the lowest average low temperature) is January (26.1°F).

Average pressure in May
Blackwood, NJ

Average pressure in May - Blackwood, 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
Blackwood, NJ

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

The windiest month (with the highest average wind speed) is April (8.6mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).

Average humidity in May
Blackwood, NJ

Average humidity in May - Blackwood, 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 (71%).

Average rainfall in May
Blackwood, NJ

Average rainfall in May - Blackwood, NJ
  • Average rainfall in May: 1.02"

The wettest month (with the highest rainfall) is August (1.38").
The driest months (with the least rainfall) are January and September (0.67").

Average rainfall days in May
Blackwood, NJ

Average rainfall days in May - Blackwood, NJ
  • Average rainfall days in May: 13.1 days

The month with the highest number of rainy days is July (13.7 days).
The month with the least rainy days is January (6.5 days).

Average snowfall in May
Blackwood, NJ

Average snowfall in May - Blackwood, NJ
  • Average snowfall in May: 0.12"

The month with the highest snowfall is February (1.1").
The months with the least snowfall are April, June, July, August, September and October (0").

Average snowfall days in May
Blackwood, NJ

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

The month with the highest number of snowfall days is January (3.5 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
Blackwood, NJ

Average daylight in May / Average sunshine in May - Blackwood, NJ
  • Average daylight in May: 14h and 2min

The month with the longest days is June (Average daylight: 14h and 54min).
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 36min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).

Average sunshine days in May
Blackwood, NJ

Average sunshine days in May - Blackwood, NJ
  • Average sunshine days in May: 15.4 days

The month with the most sunshine days is November (21.7 days).
The month with the least sunshine days is July (14.3 days).

Average UV index in May
Blackwood, NJ

Average UV index in May - Blackwood, 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
Blackwood, NJ

Average cloud cover in May - Blackwood, NJ
  • Average cloud cover in May: 46

The months with the most cloud cover are February and March (Cloud cover 47).
The months with the least cloud cover are July and August (Cloud cover 31).

Average visibility in May
Blackwood, NJ

Average visibility in May - Blackwood, 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).

Blackwood, New Jersey, USA

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