May weather forecast
Watchung, NJ

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Weather in May

The last month of the spring, May, is a pleasant month in Watchung, New Jersey, with temperature in the range of an average low of 52.9°F (11.6°C) and an average high of 69.3°F (20.7°C).

Temperature

An upsurge in temperatures occurs as April gives way to May, with average highs shifting from a mild 59°F (15°C) to an agreeable 69.3°F (20.7°C). An average minimum temperature of 52.9°F (11.6°C) is recorded in Watchung, New Jersey, during the month of May.

Humidity

The average relative humidity in May in Watchung is 77%.

Rainfall

In Watchung, in May, during 16.3 rainfall days, 2.8" (71mm) of precipitation is typically accumulated. Throughout the year, in Watchung, there are 160.7 rainfall days, and 30.12" (765mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Watchung are January through May, October through December. May is the last month it regularly snows. During 0.1 snowfall days, in May, Watchung aggregates 0.24" (6mm) of snow. Throughout the year, in Watchung, there are 25.4 snowfall days, and 10.31" (262mm) of snow is accumulated.

Daylight

The average length of the day in May is 14h and 28min.
On the first day of May, sunrise is at 5:55 am and sunset at 7:54 pm. On the last day of the month, sunrise is at 5:29 am and sunset at 8:22 pm EDT.

Sunshine

In May, the average sunshine in Watchung is 8.6h.

UV index

In May, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the average person.
Note: The maximum UV index, 5 during May, leads to the following recommendations:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. During bright days, sunglasses that offer UVA and UVB defense are recommended. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in May in Watchung?

In Watchung, in May, the average high-temperature is 69.3°F (20.7°C), and the average low-temperature is 52.9°F (11.6°C).

What is the average humidity in May in Watchung?

The average relative humidity in May in Watchung, New Jersey, is 77%.

How many days does it rain in May in Watchung?

In Watchung, during May, the rain falls for 16.3 days and regularly aggregates up to 2.8" (71mm) of precipitation.

What is the last month it snows in Watchung?

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

What is the average length of the day in May in Watchung?

The average day length in May in Watchung, New Jersey, is 14h and 28min.

When are sunrise and sunset in May in Watchung?

In May, on the first day of the month, sunrise is at 5:55 am and sunset at 7:54 pm. On the last day of the month, sunrise is at 5:29 am and sunset at 8:22 pm EDT.

How long on average sun shines in May in Watchung?

In May, the average sunshine duration in Watchung is 8.6h.

How high is the UV index in May in Watchung?

In Watchung, the average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a medium health risk from 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
Watchung, NJ

Average temperature in May - Watchung, NJ
  • Average high temperature in May: 69.3°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 (36°F).

  • Average low temperature in May: 52.9°F

The month with the highest average low temperature is July (67.5°F).
The coldest month (with the lowest average low temperature) is January (23.9°F).

Average pressure in May
Watchung, NJ

Average pressure in May - Watchung, NJ
  • Average pressure in May: 30.01"Hg

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

Average wind speed in May
Watchung, NJ

Average wind speed in May - Watchung, NJ
  • Average wind speed in May: 7mph

The windiest month (with the highest average wind speed) is March (8.9mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).

Average humidity in May
Watchung, NJ

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

The months with the highest relative humidity are February, October and December (78%).
The months with the lowest relative humidity are April and August (73%).

Average rainfall in May
Watchung, NJ

Average rainfall in May - Watchung, NJ
  • Average rainfall in May: 2.8"

The wettest month (with the highest rainfall) is December (3.19").
The driest month (with the least rainfall) is September (1.69").

Average rainfall days in May
Watchung, NJ

Average rainfall days in May - Watchung, NJ
  • Average rainfall days in May: 16.3 days

The month with the highest number of rainy days is July (16.5 days).
The month with the least rainy days is January (9.5 days).

Average snowfall in May
Watchung, NJ

Average snowfall in May - Watchung, NJ
  • Average snowfall in May: 0.24"

The month with the highest snowfall is March (3.23").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in May
Watchung, NJ

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

The months with the highest number of snowfall days are January and February (7.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in May / Average sunshine in May - Watchung, NJ
  • Average daylight in May: 14h and 3min

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in May: 8h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

Average sunshine days in May
Watchung, NJ

Average sunshine days in May - Watchung, NJ
  • Average sunshine days in May: 12.6 days

The month with the most sunshine days is November (18.4 days).
The month with the least sunshine days is June (11.4 days).

Average UV index in May
Watchung, NJ

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

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

Average cloud cover in May
Watchung, NJ

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

The months with the most cloud cover are February, March and December (Cloud cover 48).
The months with the least cloud cover are July and August (Cloud cover 32).

Average visibility in May
Watchung, NJ

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

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

Watchung, New Jersey, USA

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