May weather forecast
Riverton, NJ

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Weather in May

May, the last month of the spring in Riverton, is an agreeable month, with an average temperature ranging between min 54.5°F (12.5°C) and max 71.8°F (22.1°C).

Temperature

May's onset witnesses a shift in the average high-temperature, moving from a comfortable 61.7°F (16.5°C) in April to an agreeable 71.8°F (22.1°C). In the month of May, the average temperature dips to a fresh 54.5°F (12.5°C) during the night.

Humidity

In Riverton, New Jersey, the average relative humidity in May is 75%.

Rainfall

In May, in Riverton, the rain falls for 17.3 days. Throughout May, 2.8" (71mm) of precipitation is accumulated. In Riverton, during the entire year, the rain falls for 153.8 days and collects up to 30.94" (786mm) of precipitation.

Snowfall

January through May, November and December are months with snowfall. May is the last month it regularly snows in Riverton. During 0.1 snowfall days, in May, Riverton aggregates 0.2" (5mm) of snow. Throughout the year, there are 16.8 snowfall days, and 8.5" (216mm) of snow is accumulated.

Daylight

In May, the average length of the day in Riverton, New Jersey, is 14h and 25min.
On the first day of the month, sunrise is at 5:58 am and sunset at 7:55 pm. On the last day of May, in Riverton, New Jersey, sunrise is at 5:33 am and sunset at 8:22 pm EDT.

Sunshine

In May, the average sunshine is 8.4h.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for average individuals.
Note: The daily high UV index of 6 in May translates into this advice:
Skirt overexposure. People with light complexions might get scorched in under 20 minutes. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
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Frequently asked questions

What are the temperatures in Riverton in May?

May temperatures in Riverton, New Jersey, vary between a high-temperature of 71.8°F (22.1°C) and a low-temperature of 54.5°F (12.5°C).

What is the average humidity in May in Riverton?

The average relative humidity in May is 75%.

How much does it rain in Riverton in May?

In Riverton, New Jersey, in May, it is raining for 17.3 days, with typically 2.8" (71mm) of accumulated precipitation.

What is the last month it snows in Riverton?

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

How many hours of daylight does Riverton have in May?

In May, the average day length is 14h and 25min.

When are sunrise and sunset in May in Riverton?

On the first day of May in Riverton, New Jersey, sunrise is at 5:58 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 Riverton have in May?

In May, the average sunshine duration in Riverton is 8.4h.

When is the highest UV index in Riverton?

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

How high is the UV index in May in Riverton?

In Riverton, the average daily maximum UV index in May is 6. A UV Index of 6 to 7 symbolizes a high health threat from unprotected exposure to UV radiation.
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
Riverton, NJ

Average temperature in May - Riverton, NJ
  • Average high temperature in May: 71.8°F

The warmest month (with the highest average high temperature) is July (86.4°F).
The month with the lowest average high temperature is January (37.4°F).

  • Average low temperature in May: 54.5°F

The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (25.2°F).

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Average pressure in May
Riverton, NJ

Average pressure in May - Riverton, 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 (29.93"Hg).

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Average wind speed in May
Riverton, NJ

Average wind speed in May - Riverton, NJ
  • Average wind speed in May: 6.8mph

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 (5.6mph).

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Average humidity in May
Riverton, NJ

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

The months with the highest relative humidity are February and October (77%).
The months with the lowest relative humidity are April, July and August (71%).

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Average rainfall in May
Riverton, NJ

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

The wettest month (with the highest rainfall) is July (3.39").
The driest month (with the least rainfall) is January (1.89").

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Average rainfall days in May
Riverton, NJ

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

The month with the highest number of rainy days is July (18.5 days).
The month with the least rainy days is November (7.5 days).

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Average snowfall in May
Riverton, NJ

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

The month with the highest snowfall is March (2.76").
The months with the least snowfall are June, July, August, September and October (0").

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Average snowfall days in May
Riverton, NJ

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

The month with the highest number of snowfall days is January (5.2 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
Riverton, NJ

Average daylight in May / Average sunshine in May - Riverton, 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 2min

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 42min).

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Average sunshine days in May
Riverton, NJ

Average sunshine days in May - Riverton, NJ
  • Average sunshine days in May: 11.9 days

The month with the most sunshine days is November (21.2 days).
The month with the least sunshine days is July (10.4 days).

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Average UV index in May
Riverton, NJ

Average UV index in May - Riverton, 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, March, November and December (UV index 2).

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Average cloud cover in May
Riverton, NJ

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

The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 33).

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Average visibility in May
Riverton, NJ

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

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

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Riverton, New Jersey, USA

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