May weather forecast and climate
Port Jervis, NY

The last month of the spring, May, is an agreeable month in Port Jervis, New York, with temperature in the range of an average low of 48°F (8.9°C) and an average high of 68.2°F (20.1°C).

Temperature

In May, the average high-temperature rises, from a moderate 55.9°F (13.3°C) in April, to a pleasant 68.2°F (20.1°C). In May, in Port Jervis, New York, the average low-temperature is 48°F (8.9°C).

Humidity

In May, the average relative humidity in Port Jervis, New York, is 79%.

Rainfall

May is the month with the most rainfall. Rain falls for 16.7 days and accumulates 2.36" (60mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 0.2 snowfall days, Port Jervis aggregates 0.16" (4mm) of snow. Throughout the year, in Port Jervis, there are 36.1 snowfall days, and 9.8" (249mm) of snow is accumulated.

Daylight

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

Sunshine

In Port Jervis, the average sunshine is 8.2h.

UV index

In May, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from unsafe exposure to the UV radiation for the ordinary person.
Note: In May, the average maximum UV index of 5 translate into the following recommendations:
Take precautions - Protection against sun damage is advised. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.

What is the temperature in May in Port Jervis?

In Port Jervis, New York, in May, the average high-temperature is 68.2°F (20.1°C), and the average low-temperature is 48°F (8.9°C).

What is the average humidity in May in Port Jervis?

The average relative humidity in May in Port Jervis, New York, is 79%.

How many days does it rain in May in Port Jervis?

In Port Jervis, New York, in May, during 16.7 rainfall days, 2.36" (60mm) of precipitation is typically accumulated.

What is the wettest month in Port Jervis?

May is the month with the most rainfall. Rain falls for 16.7 days and accumulates 2.36" (60mm) of precipitation.

What is the last month it snows in Port Jervis?

May is the last month it regularly snows in Port Jervis. During 0.2 snowfall days, in May, Port Jervis aggregates 0.16" (4mm) of snow.

How many hours of daylight does Port Jervis have in May?

In May, the average length of the day in Port Jervis, New York, is 14.5h.

How long on average sun shines in May in Port Jervis?

The average sunshine in May is 8.2h.

How high is the UV index in May in Port Jervis?

The average daily maximum UV index in May in Port Jervis, New York, is 5. A UV Index estimate of 3 to 5 represents a medium health risk from unsafe exposure to the Sun's UV rays.
Average temperature in May - Port Jervis, NY
  • Average high temperature in May: 20.1°C

The warmest month (with the highest average high temperature) is July (28.1°C).
The month with the lowest average high temperature is January (0°C).

  • Average low temperature in May: 8.9°C

The month with the highest average low temperature is July (15.7°C).
The coldest month (with the lowest average low temperature) is January (-7.3°C).

Average pressure in May - Port Jervis, NY
  • Average pressure in May: 1016.2mbar

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 - Port Jervis, NY
  • Average wind speed in May: 9.6km/h

The windiest month (with the highest average wind speed) is March (12.2km/h).
The calmest month (with the lowest average wind speed) is August (7.8km/h).

Average humidity in May - Port Jervis, NY
  • Average humidity in May: 79%

Months with the highest relative humidity are February and December (83%).
Months with the lowest relative humidity are April and July (77%).

Average rainfall in May - Port Jervis, NY
  • Average rainfall in May: 60mm

The wettest month (with the highest rainfall) is May (60mm).
The driest month (with the least rainfall) is January (26mm).

Average rainfall days in May - Port Jervis, NY
  • Average rainfall days in May: 16.7 days

The month with the highest number of rainy days is May (16.7 days).
Months with the least rainy days are January and February (8.6 days).

Average snowfall in May - Port Jervis, NY
  • Average snowfall in May: 4mm

The month with the highest snowfall is February (78mm).
Months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in May - Port Jervis, NY
  • Average snowfall days in May: 0.2 days

The month with the highest number of snowfall days is February (10 days).
Months with the least snowfall days are June, July, August and September (0 days).

Average daylight in May / Average sunshine in May - Port Jervis, NY
  • Average daylight in May: 14.5h

The month with the longest days is June (Average daylight: 15.1h).
The month with the shortest days is December (Average daylight: 9.2h).

  • Average sunshine in May: 8.2h

The month with the most sunshine is July (Average sunshine: 10.2h).
The month with the least sunshine is February (Average sunshine: 4.2h).

Average sunshine days in May - Port Jervis, NY
  • Average sunshine days in May: 11.8 days

The month with the most sunshine days is October (17.4 days).
Months with the least sunshine days are April and May (11.8 days).

Average UV index in May - Port Jervis, NY
  • Average UV index in May: 5

The month with the highest UV index is June (UV index 6).
Months with the lowest UV index are January, February, March, November and December (UV index 2).

Average cloud cover in May - Port Jervis, NY
  • Average cloud cover in May: 49

The month with the most cloud cover is February (Cloud cover 53).
The month with the least cloud cover is July (Cloud cover 36).

Average visibility in May - Port Jervis, NY
  • Average visibility in May: 8km

Months with the highest visibility are January, February, March, April, May, June, July, August, October, November and December (8km).
The month with the lowest visibility is September (7km).