May weather forecast and climate
New Haven, NY

May, the last month of the spring, in New Haven, is a comfortable month, with average temperature fluctuating between 46.9°F (8.3°C) and 61.9°F (16.6°C).

Temperature

In New Haven, the average high-temperature rises, from a frosty 49.6°F (9.8°C) in April, to an enjoyable 61.9°F (16.6°C). In New Haven, in May, the average low-temperature is 46.9°F (8.3°C).

Humidity

In May, the average relative humidity is 80%.

Rainfall

In May, in New Haven, the rain falls for 16.6 days. Throughout May, 3.98" (101mm) of precipitation is accumulated. Throughout the year, in New Haven, there are 171 rainfall days, and 39.21" (996mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 0.5 snowfall days, New Haven aggregates 0.08" (2mm) of snow. Throughout the year, there are 76.2 snowfall days, and 36.61" (930mm) of snow is accumulated.

Daylight

In May, the average length of the day in New Haven is 14.7h.

Sunshine

The average sunshine is 9h.

UV index

In New Haven, New York, the average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a medium health hazard from the exposure to the Sun's UV rays for the ordinary person.
Note: The daily maximum UV index of 5 in May interpret into the following advice:
Take precautions - Protection against sunburn is recommended. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. 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 New Haven?

In May, in New Haven, New York, the average high-temperature is 61.9°F (16.6°C), and the average low-temperature is 46.9°F (8.3°C).

What is the average humidity in May in New Haven?

In May, the average relative humidity in New Haven is 80%.

How much does it rain in New Haven in May?

In New Haven, during May, the rain falls for 16.6 days and regularly aggregates up to 3.98" (101mm) of precipitation.

What is the last month it snows in New Haven?

May is the last month it regularly snows in New Haven, New York. During 0.5 snowfall days, in May, New Haven aggregates 0.08" (2mm) of snow.

What is the average length of the day in May in New Haven?

The average length of the day in May in New Haven, New York, is 14.7h.

How long on average sun shines in May in New Haven?

In May, the average sunshine in New Haven is 9h.

What is the UV index intensity in May in New Haven?

In May, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a medium hazard to health from the exposure to the Sun's UV radiation.
Average temperature in May - New Haven, NY
  • Average high temperature in May: 16.6°C

The warmest month (with the highest average high temperature) is July (24°C).
The month with the lowest average high temperature is January (-2.3°C).

  • Average low temperature in May: 8.3°C

The month with the highest average low temperature is July (16.8°C).
The coldest month (with the lowest average low temperature) is January (-7.8°C).

Average pressure in May - New Haven, NY
  • Average pressure in May: 1015.2mbar

The month with the highest atmospheric pressure is November (1018.7mbar).
The month with the lowest atmospheric pressure is June (1013mbar).

Average wind speed in May - New Haven, NY
  • Average wind speed in May: 12.9km/h

The windiest month (with the highest average wind speed) is January (19.2km/h).
The calmest month (with the lowest average wind speed) is July (11km/h).

Average humidity in May - New Haven, NY
  • Average humidity in May: 80%

Months with the highest relative humidity are January and February (86%).
The month with the lowest relative humidity is September (77%).

Average rainfall in May - New Haven, NY
  • Average rainfall in May: 101mm

The wettest month (with the highest rainfall) is October (102mm).
The driest month (with the least rainfall) is September (60mm).

Average rainfall days in May - New Haven, NY
  • Average rainfall days in May: 16.6 days

The month with the highest number of rainy days is October (19.1 days).
The month with the least rainy days is February (7.8 days).

Average snowfall in May - New Haven, NY
  • Average snowfall in May: 2mm

The month with the highest snowfall is January (228mm).
Months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in May - New Haven, NY
  • Average snowfall days in May: 0.5 days

The month with the highest number of snowfall days is January (18.9 days).
Months with the least snowfall days are June, July, August and September (0 days).

Average daylight in May / Average sunshine in May - New Haven, NY
  • Average daylight in May: 14.7h

The month with the longest days is June (Average daylight: 15.4h).
The month with the shortest days is December (Average daylight: 9h).

  • Average sunshine in May: 9h

The month with the most sunshine is July (Average sunshine: 10.4h).
The month with the least sunshine is January (Average sunshine: 2.4h).

Average sunshine days in May - New Haven, NY
  • Average sunshine days in May: 12.8 days

The month with the most sunshine days is September (14 days).
The month with the least sunshine days is January (6.3 days).

Average UV index in May - New Haven, NY
  • Average UV index in May: 5

The month with the highest UV index is July (UV index 6).
Months with the lowest UV index are January and December (UV index 1).

Average cloud cover in May - New Haven, NY
  • Average cloud cover in May: 42

The month with the most cloud cover is January (Cloud cover 77).
Months with the least cloud cover are July and August (Cloud cover 30).

Average visibility in May - New Haven, NY
  • Average visibility in May: 9km

Months with the highest visibility are April, May, June, July, August, September, October and November (9km).
Months with the lowest visibility are January, February, March and December (8km).