May weather forecast
Port Henry, NY

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Weather in May

May, the last month of the spring in Port Henry, is a comfortable month, with an average temperature ranging between min 44.8°F (7.1°C) and max 65.8°F (18.8°C).

Temperature

Port Henry's transition into May is marked by a distinct rise in the average high-temperature, advancing from a cool 51.4°F (10.8°C) in April to a refreshing 65.8°F (18.8°C). Throughout May, Port Henry records an average temperature of 44.8°F (7.1°C) at night.

Humidity

April and May, with an average relative humidity of 75%, are the least humid months in Port Henry.

Rainfall

In Port Henry, New York, in May, during 10.2 rainfall days, 0.75" (19mm) of precipitation is typically accumulated. In Port Henry, during the entire year, the rain falls for 94.8 days and collects up to 7.44" (189mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. May is the last month it regularly snows in Port Henry, New York. During 0.3 snowfall days, in May, Port Henry aggregates 0.08" (2mm) of snow. In Port Henry, during the entire year, snow falls for 36.5 days and aggregates up to 7.64" (194mm) of snow.

Daylight

In May, the average length of the day is 14h and 47min.
On the first day of May, sunrise is at 5:44 am and sunset at 7:57 pm. On the last day of the month, sunrise is at 5:13 am and sunset at 8:29 pm EDT.

Sunshine

In Port Henry, the average sunshine in May is 8.5h.

UV index

May through August, with an average maximum UV index of 5, are months with the highest UV index. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for average individuals.
Note: The UV index of 5 in May translates into these instructions:
Take precautions. Light skin individuals may get burned in less than 30 minutes. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Always opt for UVA and UVB-resistant sunglasses on radiant days. Consider carefully! The reflective quality of snow can almost double the intensity of the Sun's UV radiation.
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Frequently asked questions

What are the temperatures in Port Henry in May?

In Port Henry, in May, the average high-temperature is 65.8°F (18.8°C), and the average low-temperature is 44.8°F (7.1°C).

What is the least humid month in Port Henry?

April and May, with an average relative humidity of 75%, are the least humid months in Port Henry.

What is the average humidity in May in Port Henry?

In Port Henry, the average relative humidity in May is 75%.

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

In Port Henry, New York, in May, during 10.2 rainfall days, 0.75" (19mm) of precipitation is typically accumulated.

What is the last month it snows in Port Henry?

May is the last month it regularly snows in Port Henry. During 0.3 snowfall days, in May, Port Henry aggregates 0.08" (2mm) of snow.

What is the average length of the day in May in Port Henry?

In Port Henry, the average day length in May is 14h and 47min.

When is the sunrise / sunset in May in Port Henry?

On the first day of May in Port Henry, New York, sunrise is at 5:44 am and sunset at 7:57 pm. On the last day of the month, sunrise is at 5:13 am and sunset at 8:29 pm EDT.

How many hours of sunshine does Port Henry have in May?

The average sunshine duration in May in Port Henry is 8.5h.

When is the highest UV index in Port Henry?

May through August, with an average maximum UV index of 5, are months with the highest UV index in Port Henry.

What is the UV index reading in May in Port Henry?

The average daily maximum UV index in May in Port Henry, New York, is 5. A UV Index of 3 to 5 symbolizes a medium health risk from exposure to Sun's UV rays.
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
Port Henry, NY

Average temperature in May - Port Henry, NY
  • Average high temperature in May: 65.8°F

The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (25.3°F).

  • Average low temperature in May: 44.8°F

The month with the highest average low temperature is July (56.8°F).
The coldest month (with the lowest average low temperature) is January (12.7°F).

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Average pressure in May
Port Henry, NY

Average pressure in May - Port Henry, NY
  • Average pressure in May: 29.98"Hg

The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

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Average wind speed in May
Port Henry, NY

Average wind speed in May - Port Henry, NY
  • Average wind speed in May: 6.3mph

The windiest month (with the highest average wind speed) is April (6.8mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).

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Average humidity in May
Port Henry, NY

Average humidity in May - Port Henry, NY
  • Average humidity in May: 75%

The months with the highest relative humidity are January and February (86%).
The months with the lowest relative humidity are April and May (75%).

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Average rainfall in May
Port Henry, NY

Average rainfall in May - Port Henry, NY
  • Average rainfall in May: 0.75"

The wettest month (with the highest rainfall) is June (0.87").
The driest month (with the least rainfall) is September (0.35").

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Average rainfall days in May
Port Henry, NY

Average rainfall days in May - Port Henry, NY
  • Average rainfall days in May: 10.2 days

The month with the highest number of rainy days is July (10.9 days).
The month with the least rainy days is February (3.8 days).

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Average snowfall in May
Port Henry, NY

Average snowfall in May - Port Henry, NY
  • Average snowfall in May: 0.08"

The month with the highest snowfall is February (2.36").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in May
Port Henry, NY

Average snowfall days in May - Port Henry, NY
  • Average snowfall days in May: 0.3 days

The month with the highest number of snowfall days is February (9.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in May /
Average sunshine in May
Port Henry, NY

Average daylight in May / Average sunshine in May - Port Henry, NY
  • Average daylight in May: 14h and 5min

The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).

  • Average sunshine in May: 8h and 3min

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 3h and 36min).

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Average sunshine days in May
Port Henry, NY

Average sunshine days in May - Port Henry, NY
  • Average sunshine days in May: 18.8 days

The month with the most sunshine days is September (22.1 days).
The month with the least sunshine days is July (17.3 days).

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Average UV index in May
Port Henry, NY

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

The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).

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Average cloud cover in May
Port Henry, NY

Average cloud cover in May - Port Henry, NY
  • Average cloud cover in May: 45

The month with the most cloud cover is February (Cloud cover 62).
The months with the least cloud cover are July and August (Cloud cover 34).

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Average visibility in May
Port Henry, NY

Average visibility in May - Port Henry, NY
  • Average visibility in May: 5mi

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

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Port Henry, New York, USA

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