May weather forecast
Merchantville, NJ

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Weather in May

May, the last month of the spring in Merchantville, is a pleasant month, with an average temperature ranging between min 55°F (12.8°C) and max 72.1°F (22.3°C).

Temperature

Merchantville's May weather brings a rise in high-temperatures, moving from a comfortable 61.9°F (16.6°C) in April to a pleasant 72.1°F (22.3°C). An average low-temperature of 55°F (12.8°C) is noted during the nights in May in Merchantville.

Humidity

In May, the average relative humidity in Merchantville is 75%.

Rainfall

In May, the rain falls for 13.7 days. Throughout May, 1.26" (32mm) of precipitation is accumulated. In Merchantville, during the entire year, the rain falls for 121.5 days and collects up to 12.44" (316mm) of precipitation.

Snowfall

January through May, November and December are months with snowfall in Merchantville, New Jersey. May is the last month it regularly snows in Merchantville, New Jersey. During 0.1 snowfall days, in May, Merchantville aggregates 0.16" (4mm) of snow. In Merchantville, during the entire year, snow falls for 10.3 days and aggregates up to 2.36" (60mm) of snow.

Daylight

In Merchantville, the average length of the day in May is 14h and 24min.
On the first day of the month, sunrise is at 5:59 am and sunset at 7:55 pm. On the last day of May, sunrise is at 5:33 am and sunset at 8:22 pm EDT.

Sunshine

In May, the average sunshine is 8.5h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: The maximum UV index, 6 during May, leads to the following recommendations:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Enhance your sun protection with tightly woven, yet airy clothing. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
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Frequently asked questions

What is the usual temperature for Merchantville in May?

May temperatures in Merchantville, New Jersey, vary between a high-temperature of 72.1°F (22.3°C) and a low-temperature of 55°F (12.8°C).

What is the average humidity in May in Merchantville?

The average relative humidity in May in Merchantville, New Jersey, is 75%.

How many days does it rain in May in Merchantville?

In Merchantville, New Jersey, in May, during 13.7 rainfall days, 1.26" (32mm) of precipitation is typically accumulated.

What is the last month it snows in Merchantville?

May is the last month it regularly snows in Merchantville. During 0.1 snowfall days, in May, Merchantville aggregates 0.16" (4mm) of snow.

How many hours of daylight does Merchantville have in May?

In May, the average day length in Merchantville, New Jersey, is 14h and 24min.

What time are sunrise and sunset in May in Merchantville?

In May, on the first day of the month, sunrise is at 5:59 am and sunset at 7:55 pm. On the last day of the month, sunrise is at 5:33 am and sunset at 8:22 pm EDT.

How many hours of sunshine does Merchantville have in May?

In Merchantville, New Jersey, the average sunshine duration in May is 8.5h.

When is the highest UV index in Merchantville?

The months with the highest UV index are May through August, with an average maximum UV index of 6.

What is the UV index intensity in May in Merchantville?

In Merchantville, New Jersey, the average daily maximum UV index in May is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from unsafe 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
Merchantville, NJ

Average temperature in May - Merchantville, NJ
  • Average high temperature in May: 72.1°F

The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (37.8°F).

  • Average low temperature in May: 55°F

The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (25.5°F).

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Average pressure in May
Merchantville, NJ

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

The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

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Average wind speed in May
Merchantville, NJ

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

The windiest months (with the highest average wind speed) are March and April (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).

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Average humidity in May
Merchantville, NJ

Average humidity in May - Merchantville, NJ
  • Average humidity in May: 75%

The month with the highest relative humidity is October (77%).
The month with the lowest relative humidity is April (70%).

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Average rainfall in May
Merchantville, NJ

Average rainfall in May - Merchantville, NJ
  • Average rainfall in May: 1.26"

The wettest month (with the highest rainfall) is August (1.46").
The driest month (with the least rainfall) is January (0.67").

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Average rainfall days in May
Merchantville, NJ

Average rainfall days in May - Merchantville, NJ
  • Average rainfall days in May: 13.7 days

The month with the highest number of rainy days is July (14.4 days).
The month with the least rainy days is November (6.6 days).

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Average snowfall in May
Merchantville, NJ

Average snowfall in May - Merchantville, NJ
  • Average snowfall in May: 0.16"

The month with the highest snowfall is February (0.79").
The months with the least snowfall are June, July, August, September and October (0").

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Average snowfall days in May
Merchantville, NJ

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

The month with the highest number of snowfall days is January (3.6 days).
The 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
Merchantville, NJ

Average daylight in May / Average sunshine in May - Merchantville, NJ
  • Average daylight in May: 14h and 2min

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 24min).

  • Average sunshine in May: 8h and 3min

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).

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Average sunshine days in May
Merchantville, NJ

Average sunshine days in May - Merchantville, NJ
  • Average sunshine days in May: 14.5 days

The month with the most sunshine days is December (21.5 days).
The month with the least sunshine days is July (14 days).

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Average UV index in May
Merchantville, NJ

Average UV index in May - Merchantville, NJ
  • Average UV index in May: 6

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

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Average cloud cover in May
Merchantville, NJ

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

The month with the most cloud cover is February (Cloud cover 48).
The months with the least cloud cover are July and August (Cloud cover 32).

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Average visibility in May
Merchantville, NJ

Average visibility in May - Merchantville, NJ
  • Average visibility in May: 6mi

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

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Merchantville, New Jersey, USA

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