May weather forecast
Atco, NJ

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Weather in May

The last month of the spring, May, is an agreeable month in Atco, New Jersey, with an average temperature ranging between max 70.5°F (21.4°C) and min 55°F (12.8°C).

Temperature

The transition to May introduces an increase in the average high-temperature, shifting from a refreshing 61.3°F (16.3°C) in April to a pleasant 70.5°F (21.4°C). Atco experiences an average low-temperature of 55°F (12.8°C) in month of May.

Humidity

In May, the average relative humidity in Atco is 77%.

Rainfall

In Atco, New Jersey, in May, during 11.8 rainfall days, 1.02" (26mm) of precipitation is typically accumulated. In Atco, during the entire year, the rain falls for 115.1 days and collects up to 11.97" (304mm) of precipitation.

Snowfall

Months with snowfall are January through May, November and December. May is the last month it regularly snows in Atco. During 0.1 snowfall days, in May, Atco aggregates 0.12" (3mm) of snow. In Atco, during the entire year, snow falls for 13.1 days and aggregates up to 3.5" (89mm) of snow.

Daylight

In Atco, the average length of the day in May is 14h and 23min.
On the first day of May in Atco, New Jersey, sunrise is at 5:58 am and sunset at 7:54 pm. On the last day of the month, sunrise is at 5:33 am and sunset at 8:21 pm EDT.

Sunshine

The average sunshine in May is 8.8h.

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 hazard from unsafe exposure to UV radiation for average individuals.
Note: The UV index of 6 during May leads to these advisories:
Undertake protective measures and comply with sun safety rules. Shielding against skin and eye damage is essential. 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. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Atco in May?

The average high-temperature and low-temperature in Atco, New Jersey, during May are 70.5°F (21.4°C) and 55°F (12.8°C) respectively.

What is the average humidity in May in Atco?

In May, the average relative humidity in Atco, New Jersey, is 77%.

How many days does it rain in May in Atco?

In Atco, New Jersey, during May, the rain falls for 11.8 days and regularly aggregates up to 1.02" (26mm) of precipitation.

What is the last month it snows in Atco?

May is the last month it regularly snows. During 0.1 snowfall days, in May, Atco aggregates 0.12" (3mm) of snow.

How many hours of daylight does Atco have in May?

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

When is the sunrise / sunset in May in Atco?

In May, on the first day of the month, sunrise is at 5:58 am and sunset at 7:54 pm. On the last day of the month, sunrise is at 5:33 am and sunset at 8:21 pm EDT.

How long on average sun shines in May in Atco?

The average sunshine duration in May is 8.8h.

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

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

How high is the UV index in May in Atco?

In May, the average daily maximum UV index in Atco is 6. A UV Index reading of 6 to 7 represents a high health vulnerability 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
Atco, NJ

Average temperature in May - Atco, NJ
  • Average high temperature in May: 70.5°F

The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (38.5°F).

  • Average low temperature in May: 55°F

The month with the highest average low temperature is July (69.1°F).
The coldest month (with the lowest average low temperature) is January (26.8°F).

Average pressure in May
Atco, NJ

Average pressure in May - Atco, 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
Atco, NJ

Average wind speed in May - Atco, NJ
  • Average wind speed in May: 7.2mph

The windiest months (with the highest average wind speed) are March and April (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.8mph).

Average humidity in May
Atco, NJ

Average humidity in May - Atco, NJ
  • Average humidity in May: 77%

The month with the highest relative humidity is October (78%).
The month with the lowest relative humidity is April (71%).

Average rainfall in May
Atco, NJ

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

The wettest month (with the highest rainfall) is July (1.42").
The driest month (with the least rainfall) is January (0.63").

Average rainfall days in May
Atco, NJ

Average rainfall days in May - Atco, NJ
  • Average rainfall days in May: 11.8 days

The month with the highest number of rainy days is July (13.5 days).
The month with the least rainy days is January (6.5 days).

Average snowfall in May
Atco, NJ

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

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

Average snowfall days in May
Atco, NJ

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

The month with the highest number of snowfall days is February (4 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
Atco, NJ

Average daylight in May / Average sunshine in May - Atco, 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 48min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).

Average sunshine days in May
Atco, NJ

Average sunshine days in May - Atco, NJ
  • Average sunshine days in May: 15.8 days

The month with the most sunshine days is November (22.5 days).
The month with the least sunshine days is July (13.9 days).

Average UV index in May
Atco, NJ

Average UV index in May - Atco, 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
Atco, NJ

Average cloud cover in May - Atco, 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
Atco, NJ

Average visibility in May - Atco, 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).

Atco, New Jersey, USA

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