May weather forecast and climate
Mahwah, NJ

Weather in May

May, the last month of the spring, in Mahwah, is a pleasant month, with average temperature fluctuating between 50.7°F (10.4°C) and 69.6°F (20.9°C).

Temperature

In Mahwah, New Jersey, the average high-temperature in May rises, from a mild 58.3°F (14.6°C) in April, to an agreeable 69.6°F (20.9°C). The average low-temperature, in Mahwah, is 50.7°F (10.4°C).

Humidity

The average relative humidity is 76%.

Rainfall

In Mahwah, during May, the rain falls for 15.8 days and regularly aggregates up to 2.32" (59mm) of precipitation. In Mahwah, during the entire year, the rain falls for 150.6 days and collects up to 25.12" (638mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. May is the last month it regularly snows. During 0.1 snowfall days, in May, Mahwah aggregates 0.2" (5mm) of snow. Throughout the year, there are 28.5 snowfall days, and 10.98" (279mm) of snow is accumulated.

Daylight

In May, the average length of the day in Mahwah is 14.5h.

Sunshine

The average sunshine in May is 8.4h.

UV index

In Mahwah, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to the UV radiation for average individuals.
Note: The average daily UV index of 5 in May transform into the following instructions:
Take precautions - Protection against sunburn is recommended. 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.
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FAQ

What is the temperature in May in Mahwah?

In Mahwah, in May, the average high-temperature is 69.6°F (20.9°C), and the average low-temperature is 50.7°F (10.4°C).

What is the average humidity in May in Mahwah?

The average relative humidity in May in Mahwah, New Jersey, is 76%.

How many days does it rain in May in Mahwah?

In Mahwah, in May, during 15.8 rainfall days, 2.32" (59mm) of precipitation is typically accumulated.

What is the last month it snows in Mahwah?

May is the last month it regularly snows in Mahwah. During 0.1 snowfall days, in May, Mahwah aggregates 0.2" (5mm) of snow.

How many hours of daylight does Mahwah have in May?

The average length of the day in May is 14.5h.

How long on average sun shines in May in Mahwah?

In May, the average sunshine in Mahwah, New Jersey, is 8.4h.

What is the UV index reading in May in Mahwah?

In May, the average daily maximum UV index in Mahwah is 5. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from unprotected exposure to the UV radiation.

Average temperature in May
Mahwah, NJ

Average temperature in May - Mahwah, NJ
  • Average high temperature in May: 69.6°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 (34.3°F).

  • Average low temperature in May: 50.7°F

The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is January (21.7°F).

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Average pressure in May
Mahwah, NJ

Average pressure in May - Mahwah, NJ
  • Average pressure in May: 30.01"

The month with the highest atmospheric pressure is November (30.1").
The month with the lowest atmospheric pressure is June (29.93").

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Average wind speed in May
Mahwah, NJ

Average wind speed in May - Mahwah, NJ
  • Average wind speed in May: 6.1mph

The windiest month (with the highest average wind speed) is March (7.7mph).
The calmest month (with the lowest average wind speed) is August (5mph).

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Average humidity in May
Mahwah, NJ

Average humidity in May - Mahwah, NJ
  • Average humidity in May: 76%

Months with the highest relative humidity are February and December (79%).
The month with the lowest relative humidity is April (72%).

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Average rainfall in May
Mahwah, NJ

Average rainfall in May - Mahwah, NJ
  • Average rainfall in May: 2.32"

The wettest month (with the highest rainfall) is December (2.68").
The driest month (with the least rainfall) is September (1.34").

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Average rainfall days in May
Mahwah, NJ

Average rainfall days in May - Mahwah, NJ
  • Average rainfall days in May: 15.8 days

The month with the highest number of rainy days is July (16.6 days).
The month with the least rainy days is January (7.8 days).

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Average snowfall in May
Mahwah, NJ

Average snowfall in May - Mahwah, NJ
  • Average snowfall in May: 0.2"

The month with the highest snowfall is February (2.91").
Months with the least snowfall are June, July, August and September (0").

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Average snowfall days in May
Mahwah, NJ

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

The month with the highest number of snowfall days is February (7.7 days).
Months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in May / Average sunshine in May - Mahwah, NJ
  • Average daylight in May: 14.5h

The month with the longest days is June (Average daylight: 15.1h).
The month with the shortest days is December (Average daylight: 9.3h).

  • Average sunshine in May: 8.4h

The month with the most sunshine is July (Average sunshine: 10.4h).
The month with the least sunshine is February (Average sunshine: 4.5h).

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Average sunshine days in May
Mahwah, NJ

Average sunshine days in May - Mahwah, NJ
  • Average sunshine days in May: 13.1 days

The month with the most sunshine days is November (18.8 days).
The month with the least sunshine days is June (11.8 days).

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Average UV index in May
Mahwah, NJ

Average UV index in May - Mahwah, 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).

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Average cloud cover in May
Mahwah, NJ

Average cloud cover in May - Mahwah, NJ
  • Average cloud cover in May: 47

Months with the most cloud cover are February and March (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 33).

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Average visibility in May
Mahwah, NJ

Average visibility in May - Mahwah, NJ
  • Average visibility in May: 5mi

Months with the highest visibility are January, March, April, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are February and May (5mi).

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