May weather forecast
Swartswood, NJ

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Weather in May

The last month of the spring, May, is an agreeable month in Swartswood, New Jersey, with an average temperature varying between 48.9°F (9.4°C) and 68.5°F (20.3°C).

Temperature

May's arrival sees a rise in the average high-temperature, jumping from April's refreshing 57.4°F (14.1°C) to an agreeable 68.5°F (20.3°C). During May, Swartswood records a consistent average nighttime temperature of 48.9°F (9.4°C).

Humidity

In May, the average relative humidity is 79%.

Rainfall

In May, the rain falls for 17.3 days. Throughout May, 2.87" (73mm) of precipitation is accumulated. Throughout the year, there are 161.1 rainfall days, and 28.98" (736mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall in Swartswood. May is the last month it regularly snows. During 0.3 snowfall days, in May, Swartswood aggregates 0.51" (13mm) of snow. Throughout the year, there are 36.8 snowfall days, and 17.52" (445mm) of snow is accumulated.

Daylight

In May, the average length of the day is 14h and 30min.
On the first day of May, sunrise is at 5:56 am and sunset at 7:56 pm. On the last day of the month, sunrise is at 5:29 am and sunset at 8:25 pm EDT.

Sunshine

The average sunshine in May is 8.1h.

UV index

In Swartswood, the average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for average individuals.
Note: The maximum daily UV index of 5 in May converts into the following recommendations:
Undertake precautions - Obligation exists to protect against skin and eye damage. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.
Updated: Aug 27, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in May?

May temperatures vary between a high-temperature of 68.5°F (20.3°C) and a low-temperature of 48.9°F (9.4°C).

What is the average humidity in May?

In Swartswood, the average relative humidity in May is 79%.

How much does it rain in May?

In Swartswood, in May, during 17.3 rainfall days, 2.87" (73mm) of precipitation is typically accumulated.

What is the last month it snows in Swartswood?

May is the last month it regularly snows. During 0.3 snowfall days, in May, Swartswood aggregates 0.51" (13mm) of snow.

What is the average length of the day in May?

The average day length in May is 14h and 30min.

When are sunrise and sunset in May?

In May, on the first day of the month, sunrise is at 5:56 am and sunset at 7:56 pm. On the last day of the month, sunrise is at 5:29 am and sunset at 8:25 pm EDT.

How many hours of sunshine does Swartswood have in May?

In May, the average sunshine duration is 8.1h.

What is the UV index reading in May?

In May, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a moderate health threat from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Swartswood, NJ

Average temperature in May - Swartswood, NJ
  • Average high temperature in May: 68.5°F

The warmest month (with the highest average high temperature) is July (82.8°F).
The month with the lowest average high temperature is January (33.3°F).

  • Average low temperature in May: 48.9°F

The month with the highest average low temperature is July (61.9°F).
The coldest month (with the lowest average low temperature) is January (20.3°F).

Average pressure in May
Swartswood, NJ

Average pressure in May - Swartswood, 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
Swartswood, NJ

Average wind speed in May - Swartswood, NJ
  • Average wind speed in May: 6.2mph

The windiest month (with the highest average wind speed) is March (7.9mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).

Average humidity in May
Swartswood, NJ

Average humidity in May - Swartswood, NJ
  • Average humidity in May: 79%

The months with the highest relative humidity are February and December (82%).
The month with the lowest relative humidity is April (76%).

Average rainfall in May
Swartswood, NJ

Average rainfall in May - Swartswood, NJ
  • Average rainfall in May: 2.87"

The wettest month (with the highest rainfall) is July (3.03").
The driest month (with the least rainfall) is September (1.54").

Average rainfall days in May
Swartswood, NJ

Average rainfall days in May - Swartswood, NJ
  • Average rainfall days in May: 17.3 days

The months with the highest number of rainy days are May and July (17.3 days).
The month with the least rainy days is January (7.5 days).

Average snowfall in May
Swartswood, NJ

Average snowfall in May - Swartswood, NJ
  • Average snowfall in May: 0.51"

The months with the highest snowfall are January and February (4.29").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in May
Swartswood, NJ

Average snowfall days in May - Swartswood, NJ
  • Average snowfall days in May: 0.3 days

The month with the highest number of snowfall days is January (10.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

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

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in May: 8h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is February (Average sunshine: 4h and 18min).

Average sunshine days in May
Swartswood, NJ

Average sunshine days in May - Swartswood, NJ
  • Average sunshine days in May: 12 days

The month with the most sunshine days is November (17.2 days).
The month with the least sunshine days is June (11.3 days).

Average UV index in May
Swartswood, NJ

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

The month with the highest UV index is June (UV index 6).
The month with the lowest UV index is December (UV index 1).

Average cloud cover in May
Swartswood, NJ

Average cloud cover in May - Swartswood, NJ
  • Average cloud cover in May: 50

The month with the most cloud cover is February (Cloud cover 52).
The months with the least cloud cover are July and August (Cloud cover 37).

Average visibility in May
Swartswood, NJ

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

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

Swartswood, New Jersey, USA

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