May weather forecast
Rockwood, NJ

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Weather in May

The last month of the spring, May, is an agreeable month in Rockwood, New Jersey, with temperature in the range of an average high of 70.3°F (21.3°C) and an average low of 55°F (12.8°C).

Temperature

The commencement of May sees a shift in the average high-temperature, moving from a refreshing 61°F (16.1°C) in April to an agreeable 70.3°F (21.3°C). May nights in Rockwood, New Jersey, cool down to an average low-temperature of 55°F (12.8°C).

Humidity

In Rockwood, the average relative humidity in May is 78%.

Rainfall

In Rockwood, New Jersey, during May, the rain falls for 11.3 days and regularly aggregates up to 1.06" (27mm) of precipitation. In Rockwood, during the entire year, the rain falls for 115 days and collects up to 12.44" (316mm) 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. In Rockwood, during the entire year, snow falls for 11.9 days and aggregates up to 2.99" (76mm) of snow.

Daylight

The average length of the day in May in Rockwood, New Jersey, is 14h and 23min.
On the first day of the month, sunrise is at 5:58 am and sunset at 7:53 pm. On the last day of May, sunrise is at 5:32 am and sunset at 8:20 pm EDT.

Sunshine

In May, the average sunshine in Rockwood, New Jersey, is 8.9h.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for the average person.
Note: The UV index of 6 in May translates into these instructions:
Use protective steps and abide by sun safety guidelines. Safeguarding against skin and eye harm is necessary. 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. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in Rockwood in May?

In May, in Rockwood, the average high-temperature is 70.3°F (21.3°C), and the average low-temperature is 55°F (12.8°C).

What is the average humidity in May in Rockwood?

The average relative humidity in May in Rockwood, New Jersey, is 78%.

How many days does it rain in May in Rockwood?

In Rockwood, in May, it is raining for 11.3 days, with typically 1.06" (27mm) of accumulated precipitation.

When does it start to snow in Rockwood?

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

How many hours of daylight does Rockwood have in May?

In May, the average day length in Rockwood, New Jersey, is 14h and 23min.

What time are sunrise and sunset in May in Rockwood?

On the first day of May, sunrise is at 5:58 am and sunset at 7:53 pm. On the last day of the month, sunrise is at 5:32 am and sunset at 8:20 pm EDT.

How many hours of sunshine does Rockwood have in May?

In Rockwood, New Jersey, the average sunshine duration in May is 8.9h.

What is the month with the highest UV index in Rockwood?

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

How high is the UV index in May in Rockwood?

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

Average temperature in May - Rockwood, NJ
  • Average high temperature in May: 70.3°F

The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is January (39°F).

  • Average low temperature in May: 55°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 (27.5°F).

Average pressure in May
Rockwood, NJ

Average pressure in May - Rockwood, NJ
  • Average pressure in May: 30.02"Hg

The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in May
Rockwood, NJ

Average wind speed in May - Rockwood, NJ
  • Average wind speed in May: 7.5mph

The windiest month (with the highest average wind speed) is April (9.1mph).
The calmest month (with the lowest average wind speed) is August (6mph).

Average humidity in May
Rockwood, NJ

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

The month with the highest relative humidity is June (79%).
The month with the lowest relative humidity is April (72%).

Average rainfall in May
Rockwood, NJ

Average rainfall in May - Rockwood, NJ
  • Average rainfall in May: 1.06"

The wettest month (with the highest rainfall) is July (1.54").
The driest month (with the least rainfall) is January (0.67").

Average rainfall days in May
Rockwood, NJ

Average rainfall days in May - Rockwood, NJ
  • Average rainfall days in May: 11.3 days

The month with the highest number of rainy days is July (13.3 days).
The month with the least rainy days is November (6.7 days).

Average snowfall in May
Rockwood, NJ

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

The month with the highest snowfall is January (1.06").
The months with the least snowfall are April, June, July, August, September and October (0").

Average snowfall days in May
Rockwood, NJ

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

The month with the highest number of snowfall days is January (3.7 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
Rockwood, NJ

Average daylight in May / Average sunshine in May - Rockwood, 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 5min

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).

Average sunshine days in May
Rockwood, NJ

Average sunshine days in May - Rockwood, NJ
  • Average sunshine days in May: 16.7 days

The month with the most sunshine days is November (22.1 days).
The month with the least sunshine days is July (14.3 days).

Average UV index in May
Rockwood, NJ

Average UV index in May - Rockwood, 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
Rockwood, NJ

Average cloud cover in May - Rockwood, NJ
  • Average cloud cover in May: 44

The months with the most cloud cover are February and March (Cloud cover 46).
The months with the least cloud cover are July and August (Cloud cover 29).

Average visibility in May
Rockwood, NJ

Average visibility in May - Rockwood, 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).

Rockwood, New Jersey, USA

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