May weather forecast and climate
Edison, NJ

The last month of the spring, May, is a pleasant month in Edison, New Jersey, with average temperature ranging between min 53.2°F (11.8°C) and max 69.4°F (20.8°C).

Temperature

In Edison, New Jersey, the average high-temperature rises, from a moderate 59.2°F (15.1°C) in April, to an agreeable 69.4°F (20.8°C). In Edison, the average low-temperature is 53.2°F (11.8°C).

Humidity

In Edison, the average relative humidity in May is 76%.

Rainfall

In Edison, during May, the rain falls for 16.3 days and regularly aggregates up to 2.8" (71mm) of precipitation. Throughout the year, in Edison, there are 149.9 rainfall days, and 26.93" (684mm) of precipitation is accumulated.

Snowfall

In Edison snow does not fall through October.

Daylight

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

Sunshine

In Edison, the average sunshine is 8.4h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index in Edison. A UV Index of 6 to 7 symbolizes a high threat to health from unsafe exposure to the UV radiation for average individuals.
Note: The daily maximum UV index of 6 interpret into the following advice:
Take precautions against overexposure. Protection against sun damage is needed. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.

What is the temperature in May in Edison?

The average high-temperature, in May, in Edison, is 69.4°F (20.8°C), while the average low-temperature is 53.2°F (11.8°C).

What is the average humidity in May in Edison?

The average relative humidity in May in Edison, New Jersey, is 76%.

How many days does it rain in May in Edison?

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

Does it snow in Edison in May?

In May, it doesn't snow. April is the latest month when it typically snows.

When it does not snow in Edison?

May through October are months without snowfall in Edison.

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

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

How many hours of sunshine does Edison have in May?

In Edison, the average sunshine in May is 8.4h.

What is the month with the highest UV index in Edison?

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

How high is the UV index in May in Edison?

In Edison, New Jersey, the average daily maximum UV index in May is 6. A UV Index of 6 to 7 symbolizes a high health risk from unprotected exposure to the UV radiation.
Average temperature in May - Edison, NJ
  • Average high temperature in May: 20.8°C

The warmest month (with the highest average high temperature) is July (28.9°C).
The month with the lowest average high temperature is January (2.6°C).

  • Average low temperature in May: 11.8°C

The month with the highest average low temperature is July (20.1°C).
The coldest month (with the lowest average low temperature) is January (-3.9°C).

Average pressure in May - Edison, NJ
  • Average pressure in May: 1016.3mbar

The month with the highest atmospheric pressure is November (1019.6mbar).
The month with the lowest atmospheric pressure is June (1013.7mbar).

Average wind speed in May - Edison, NJ
  • Average wind speed in May: 11.7km/h

The windiest month (with the highest average wind speed) is March (14.9km/h).
The calmest months (with the lowest average wind speed) are July and August (9.7km/h).

Average humidity in May - Edison, NJ
  • Average humidity in May: 76%

Months with the highest relative humidity are February, October and December (77%).
The month with the lowest relative humidity is August (72%).

Average rainfall in May - Edison, NJ
  • Average rainfall in May: 71mm

The wettest month (with the highest rainfall) is July (78mm).
The driest month (with the least rainfall) is September (39mm).

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

The month with the highest number of rainy days is July (16.8 days).
The month with the least rainy days is January (8.3 days).

Average snowfall in May - Edison, NJ
  • Average snowfall in May: 0mm

The month with the highest snowfall is March (83mm).
Months with the least snowfall are May, June, July, August, September and October (0mm).

Average snowfall days in May - Edison, NJ
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is January (5.6 days).
Months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in May / Average sunshine in May - Edison, NJ
  • Average daylight in May: 14.5h

The month with the longest days is June (Average daylight: 15h).
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: 10.4h).
The month with the least sunshine is February (Average sunshine: 4.6h).

Average sunshine days in May - Edison, NJ
  • Average sunshine days in May: 12.2 days

The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is July (11.3 days).

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

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

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

Months with the most cloud cover are February and December (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 32).

Average visibility in May - Edison, NJ
  • Average visibility in May: 9km

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).