May weather forecast and climate
Monroeville, NJ

May, the last month of the spring, in Monroeville, is a pleasant month, with average temperature varying between 71.8°F (22.1°C) and 55.2°F (12.9°C).

Temperature

In May, the average high-temperature rises, from an enjoyable 61.7°F (16.5°C) in April, to a pleasant 71.8°F (22.1°C). In Monroeville, the average low-temperature is 55.2°F (12.9°C).

Humidity

In Monroeville, the average relative humidity in May is 77%.

Rainfall

In May, the rain falls for 16.5 days. Throughout May, 2.52" (64mm) of precipitation is accumulated. In Monroeville, during the entire year, the rain falls for 154.9 days and collects up to 30.47" (774mm) of precipitation.

Snowfall

January through May, November and December are months with snowfall. May is the last month it regularly snows in Monroeville. During 0.1 snowfall days, in May, Monroeville aggregates 0.16" (4mm) of snow. In Monroeville, during the entire year, snow falls for 17.8 days, and aggregates up to 10.28" (261mm) of snow.

Daylight

In Monroeville, the average length of the day is 14.4h.

Sunshine

The average sunshine in Monroeville is 8.8h.

UV index

Months with the highest UV index in Monroeville are May through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health hazard from the exposure to the Sun's UV rays for the average person.
Note: In May, the average maximum UV index of 6 translate into the following recommendations:
Take precautions and utilize sun safety practices. Protection against the skin and eye damage is required. 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. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.

What is the temperature in May in Monroeville?

The average high-temperature, in May, in Monroeville, New Jersey, is 71.8°F (22.1°C), while the average low-temperature is 55.2°F (12.9°C).

What is the average humidity in May in Monroeville?

In Monroeville, New Jersey, the average relative humidity in May is 77%.

How much does it rain in Monroeville in May?

In May, the rain falls for 16.5 days. Throughout May, 2.52" (64mm) of precipitation is accumulated.

What is the last month it snows in Monroeville?

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

How many hours of daylight does Monroeville have in May?

In Monroeville, New Jersey, the average length of the day in May is 14.4h.

How many hours of sunshine does Monroeville have in May?

In Monroeville, New Jersey, the average sunshine in May is 8.8h.

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

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

What is the UV index reading in May in Monroeville?

The average daily maximum UV index in May is 6. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to the UV radiation.
Average temperature in May - Monroeville, NJ
  • Average high temperature in May: 22.1°C

The warmest month (with the highest average high temperature) is July (29.6°C).
The month with the lowest average high temperature is January (3.4°C).

  • Average low temperature in May: 12.9°C

The month with the highest average low temperature is July (20.3°C).
The coldest month (with the lowest average low temperature) is January (-2.9°C).

Average pressure in May - Monroeville, NJ
  • Average pressure in May: 1016.4mbar

The month with the highest atmospheric pressure is November (1020mbar).
The month with the lowest atmospheric pressure is June (1013.8mbar).

Average wind speed in May - Monroeville, NJ
  • Average wind speed in May: 11.4km/h

The windiest month (with the highest average wind speed) is April (14km/h).
The calmest month (with the lowest average wind speed) is August (9.1km/h).

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

The month with the highest relative humidity is October (78%).
The month with the lowest relative humidity is April (71%).

Average rainfall in May - Monroeville, NJ
  • Average rainfall in May: 64mm

The wettest month (with the highest rainfall) is December (85mm).
The driest month (with the least rainfall) is September (44mm).

Average rainfall days in May - Monroeville, NJ
  • Average rainfall days in May: 16.5 days

The month with the highest number of rainy days is July (16.9 days).
The month with the least rainy days is January (8.8 days).

Average snowfall in May - Monroeville, NJ
  • Average snowfall in May: 4mm

The month with the highest snowfall is March (90mm).
Months with the least snowfall are June, July, August, September and October (0mm).

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

The month with the highest number of snowfall days is January (5.5 days).
Months with the least snowfall days are June, July, August, September and October (0 days).

Average daylight in May / Average sunshine in May - Monroeville, NJ
  • Average daylight in May: 14.4h

The month with the longest days is June (Average daylight: 14.9h).
The month with the shortest days is December (Average daylight: 9.4h).

  • Average sunshine in May: 8.8h

The month with the most sunshine is July (Average sunshine: 10.8h).
The month with the least sunshine is February (Average sunshine: 4.9h).

Average sunshine days in May - Monroeville, 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 (11.8 days).

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

Average cloud cover in May - Monroeville, NJ
  • Average cloud cover in May: 45

Months with the most cloud cover are February and March (Cloud cover 46).
Months with the least cloud cover are July and August (Cloud cover 30).

Average visibility in May - Monroeville, 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).