May weather forecast
Whippany, NJ

Weather in May

The last month of the spring, May, is an agreeable month in Whippany, New Jersey, with temperature in the range of an average low of 51.3°F (10.7°C) and an average high of 68.9°F (20.5°C).

Temperature

In May, the average high-temperature increases, from a mild 58.3°F (14.6°C) in April, to a pleasant 68.9°F (20.5°C). In May, in Whippany, New Jersey, the average low-temperature is 51.3°F (10.7°C).

Humidity

In Whippany, the average relative humidity is 77%.

Rainfall

In Whippany, during May, the rain falls for 18.3 days and regularly aggregates up to 2.83" (72mm) of precipitation. Throughout the year, there are 157.9 rainfall days, and 27.05" (687mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, November and December. May is the last month it regularly snows. During 0.1 snowfall days, in May, Whippany aggregates 0.2" (5mm) of snow. Throughout the year, there are 24 snowfall days, and 9.72" (247mm) of snow is accumulated.

Daylight

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

Sunshine

The average sunshine in Whippany, New Jersey, is 8.4h.

UV index

In Whippany, the average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from the 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 sunburn is recommended. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. 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 average humidity in May in Whippany?

In May, the average relative humidity is 77%.

How much does it rain in Whippany in May?

In Whippany, during May, the rain falls for 18.3 days and regularly aggregates up to 2.83" (72mm) of precipitation.

What is the last month it snows in Whippany?

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

How many hours of daylight does Whippany have in May?

In May, the average length of the day in Whippany, New Jersey, is 14.5h.

How many hours of sunshine does Whippany have in May?

In May, the average sunshine is 8.4h.

What is the UV index reading in May in Whippany?

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

Average temperature in May
Whippany, NJ

Average temperature in May - Whippany, NJ
  • Average high temperature in May: 68.9°F

The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (34.9°F).

  • Average low temperature in May: 51.3°F

The month with the highest average low temperature is July (65.7°F).
The coldest month (with the lowest average low temperature) is January (22.5°F).

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Average pressure in May
Whippany, NJ

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

The month with the highest atmospheric pressure is November (30.11").
The month with the lowest atmospheric pressure is June (29.93").

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Average wind speed in May
Whippany, NJ

Average wind speed in May - Whippany, NJ
  • Average wind speed in May: 6.5mph

The windiest month (with the highest average wind speed) is March (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).

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Average humidity in May
Whippany, NJ

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

Months with the highest relative humidity are February, October and December (80%).
The month with the lowest relative humidity is April (74%).

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Average rainfall in May
Whippany, NJ

Average rainfall in May - Whippany, NJ
  • Average rainfall in May: 2.83"

The wettest month (with the highest rainfall) is July (3.19").
The driest months (with the least rainfall) are January, February and September (1.57").

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Average rainfall days in May
Whippany, NJ

Average rainfall days in May - Whippany, NJ
  • Average rainfall days in May: 18.3 days

The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is January (8.3 days).

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Average snowfall in May
Whippany, NJ

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

The month with the highest snowfall is March (3.7").
Months with the least snowfall are June, July, August, September and October (0").

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Average snowfall days in May
Whippany, NJ

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

The month with the highest number of snowfall days is February (6.8 days).
Months with the least snowfall days are June, July, August, September and October (0 days).

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

Average daylight in May / Average sunshine in May - Whippany, 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: 10.3h).
The month with the least sunshine is February (Average sunshine: 4.6h).

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Average sunshine days in May
Whippany, NJ

Average sunshine days in May - Whippany, NJ
  • Average sunshine days in May: 11 days

The month with the most sunshine days is November (19 days).
The month with the least sunshine days is July (10.9 days).

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Average UV index in May
Whippany, NJ

Average UV index in May - Whippany, 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
Whippany, NJ

Average cloud cover in May - Whippany, NJ
  • Average cloud cover in May: 48

Months with the most cloud cover are February, March and December (Cloud cover 49).
Months with the least cloud cover are July and August (Cloud cover 34).

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Average visibility in May
Whippany, NJ

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

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

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