May weather forecast and climate
Deans, NJ

May, the last month of the spring, in Deans, is an agreeable month, with average temperature ranging between min 53.2°F (11.8°C) and max 69.6°F (20.9°C).

Temperature

In May, the average high-temperature rises, from a mild 59.5°F (15.3°C) in April, to a pleasant 69.6°F (20.9°C). In May, the average low-temperature is 53.2°F (11.8°C).

Humidity

February, May, October and December, with an average relative humidity of 77%, are most humid months.

Rainfall

In May, in Deans, the rain falls for 16.2 days. Throughout May, 2.83" (72mm) of precipitation is accumulated. Throughout the year, in Deans, there are 155.3 rainfall days, and 29.09" (739mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Deans, New Jersey, are January through May, October through December. May is the last month it regularly snows. During 0.1 snowfall days, Deans aggregates 0.24" (6mm) of snow. In Deans, during the entire year, snow falls for 20.7 days, and aggregates up to 9.33" (237mm) of snow.

Daylight

In May, the average length of the day in Deans is 14.4h.

Sunshine

The average sunshine in May is 8.5h.

UV index

The average daily maximum UV index in Deans is 5. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to the Sun's UV rays for ordinary individuals.
Note: In May, the average maximum UV index of 5 translate into the following recommendations:
Take precautions - Protection against sun damage is advised. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.

What is the temperature in May in Deans?

The average high-temperature, in May, in Deans, is 69.6°F (20.9°C), while the average low-temperature is 53.2°F (11.8°C).

What are the most humid months in Deans?

February, May, October and December, with an average relative humidity of 77%, are most humid months in Deans.

What is the average humidity in May in Deans?

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

How many days does it rain in May in Deans?

In Deans, New Jersey, in May, during 16.2 rainfall days, 2.83" (72mm) of precipitation is typically accumulated.

What is the last month it snows in Deans?

May is the last month it regularly snows in Deans. During 0.1 snowfall days, in May, Deans aggregates 0.24" (6mm) of snow.

How many hours of daylight does Deans have in May?

The average length of the day in May in Deans is 14.4h.

How many hours of sunshine does Deans have in May?

In May, the average sunshine is 8.5h.

How high is the UV index in May in Deans?

The average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a moderate vulnerability from the exposure to the Sun's UV radiation.
Average temperature in May - Deans, NJ
  • Average high temperature in May: 20.9°C

The warmest month (with the highest average high temperature) is July (29.2°C).
The month with the lowest average high temperature is January (2.7°C).

  • Average low temperature in May: 11.8°C

The month with the highest average low temperature is July (20°C).
The coldest month (with the lowest average low temperature) is January (-3.8°C).

Average pressure in May - Deans, NJ
  • Average pressure in May: 1016.4mbar

The month with the highest atmospheric pressure is November (1019.6mbar).
The month with the lowest atmospheric pressure is June (1013.7mbar).

Average wind speed in May - Deans, NJ
  • Average wind speed in May: 11.6km/h

The windiest month (with the highest average wind speed) is March (14.7km/h).
The calmest month (with the lowest average wind speed) is August (9.4km/h).

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

Months with the highest relative humidity are February, May, October and December (77%).
Months with the lowest relative humidity are April and August (73%).

Average rainfall in May - Deans, NJ
  • Average rainfall in May: 72mm

The wettest month (with the highest rainfall) is December (79mm).
The driest month (with the least rainfall) is September (37mm).

Average rainfall days in May - Deans, NJ
  • Average rainfall days in May: 16.2 days

Months with the highest number of rainy days are May and June (16.2 days).
The month with the least rainy days is January (8.8 days).

Average snowfall in May - Deans, NJ
  • Average snowfall in May: 6mm

The month with the highest snowfall is March (81mm).
Months with the least snowfall are June, July, August and September (0mm).

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

The month with the highest number of snowfall days is February (6 days).
Months with the least snowfall days are June, July, August and September (0 days).

Average daylight in May / Average sunshine in May - Deans, NJ
  • Average daylight in May: 14.4h

The month with the longest days is June (Average daylight: 15h).
The month with the shortest days is December (Average daylight: 9.3h).

  • Average sunshine in May: 8.5h

The month with the most sunshine is July (Average sunshine: 10.4h).
The month with the least sunshine is February (Average sunshine: 4.6h).

Average sunshine days in May - Deans, NJ
  • Average sunshine days in May: 12.8 days

The month with the most sunshine days is November (18.6 days).
The month with the least sunshine days is June (12 days).

Average UV index in May - Deans, NJ
  • Average UV index in May: 5

Months with the highest UV index are June, July and August (UV index 6).
Months with the lowest UV index are January, February, March, November and December (UV index 2).

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

Months with the most cloud cover are February and December (Cloud cover 49).
Months with the least cloud cover are July and August (Cloud cover 33).

Average visibility in May - Deans, NJ
  • Average visibility in May: 9km

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).