May weather forecast
Henderson, NY

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Weather in May

The last month of the spring, May, is a comfortable month in Henderson, New York, with an average temperature fluctuating between 46.6°F (8.1°C) and 63.3°F (17.4°C).

Temperature

As Henderson transitions into May, the average high-temperature is observed to rise from a fresh 50.5°F (10.3°C) in April to a refreshing 63.3°F (17.4°C). An average low-temperature of 46.6°F (8.1°C) is expected during May.

Humidity

The average relative humidity in May is 79%.

Rainfall

In Henderson, in May, during 15.3 rainfall days, 3.03" (77mm) of precipitation is typically accumulated. In Henderson, during the entire year, the rain falls for 158.6 days and collects up to 30.39" (772mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 0.7 snowfall days, in May, Henderson aggregates 0.12" (3mm) of snow. Throughout the year, there are 81.1 snowfall days, and 36.61" (930mm) of snow is accumulated.

Daylight

In May, the average length of the day is 14h and 46min.
On the first day of May, sunrise is at 5:55 am and sunset at 8:08 pm. On the last day of the month, sunrise is at 5:25 am and sunset at 8:39 pm EDT.

Sunshine

The average sunshine in May is 8.9h.

UV index

In May, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the ordinary person.
Note: A maximum daily UV index of 4 during May morphs into the following directions:
Prioritize safety - Recommendations to avert sunburn are shared. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. During bright days, sunglasses that offer UVA and UVB defense are recommended. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.

Frequently asked questions

What is the temperature in May in Henderson?

Henderson in May has an average high-temperature of 63.3°F (17.4°C) and an average low-temperature of 46.6°F (8.1°C).

What is the average humidity in May?

The average relative humidity in May is 79%.

How many days does it rain in May?

In Henderson, in May, it is raining for 15.3 days, with typically 3.03" (77mm) of accumulated precipitation.

What is the last month it snows?

May is the last month it regularly snows. During 0.7 snowfall days, in May, Henderson aggregates 0.12" (3mm) of snow.

How many hours of daylight does Henderson have in May?

In Henderson, the average day length in May is 14h and 46min.

What time are sunrise and sunset in May?

On the first day of May, sunrise is at 5:55 am and sunset at 8:08 pm. On the last day of the month, sunrise is at 5:25 am and sunset at 8:39 pm EDT.

How long on average sun shines in May in Henderson?

In May, the average sunshine duration is 8.9h.

What is the UV index intensity in May?

The average daily maximum UV index in May is 4. A UV Index estimate of 3 to 5 represents a medium hazard to health 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
Henderson, NY

Average temperature in May - Henderson, NY
  • Average high temperature in May: 63.3°F

The warmest month (with the highest average high temperature) is July (76.1°F).
The month with the lowest average high temperature is January (26.6°F).

  • Average low temperature in May: 46.6°F

The month with the highest average low temperature is July (61°F).
The coldest month (with the lowest average low temperature) is January (16°F).

Average pressure in May
Henderson, NY

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

The month with the highest atmospheric pressure is November (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in May
Henderson, NY

Average wind speed in May - Henderson, NY
  • Average wind speed in May: 7.8mph

The windiest month (with the highest average wind speed) is January (11mph).
The calmest month (with the lowest average wind speed) is July (6.8mph).

Average humidity in May
Henderson, NY

Average humidity in May - Henderson, NY
  • Average humidity in May: 79%

The months with the highest relative humidity are January and February (87%).
The months with the lowest relative humidity are April and September (77%).

Average rainfall in May
Henderson, NY

Average rainfall in May - Henderson, NY
  • Average rainfall in May: 3.03"

The wettest month (with the highest rainfall) is October (3.23").
The driest month (with the least rainfall) is September (1.85").

Average rainfall days in May
Henderson, NY

Average rainfall days in May - Henderson, NY
  • Average rainfall days in May: 15.3 days

The month with the highest number of rainy days is October (17.4 days).
The months with the least rainy days are January and February (7 days).

Average snowfall in May
Henderson, NY

Average snowfall in May - Henderson, NY
  • Average snowfall in May: 0.12"

The month with the highest snowfall is December (9.21").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in May
Henderson, NY

Average snowfall days in May - Henderson, NY
  • Average snowfall days in May: 0.7 days

The month with the highest number of snowfall days is January (19 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in May /
Average sunshine in May
Henderson, NY

Average daylight in May / Average sunshine in May - Henderson, 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 5min

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The months with the least sunshine are January and February (Average sunshine: 2h and 42min).

Average sunshine days in May
Henderson, NY

Average sunshine days in May - Henderson, NY
  • Average sunshine days in May: 13.3 days

The month with the most sunshine days is September (15 days).
The months with the least sunshine days are January and February (7.3 days).

Average UV index in May
Henderson, NY

Average UV index in May - Henderson, NY
  • Average UV index in May: 4

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

Average cloud cover in May
Henderson, NY

Average cloud cover in May - Henderson, NY
  • Average cloud cover in May: 42

The month with the most cloud cover is January (Cloud cover 74).
The month with the least cloud cover is August (Cloud cover 30).

Average visibility in May
Henderson, NY

Average visibility in May - Henderson, NY
  • Average visibility in May: 6mi

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

Henderson, New York, USA

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