May weather forecast
Black River, NY

Weather in May

The last month of the spring, May, is an enjoyable month in Black River, New York, with an average temperature ranging between max 63.5°F (17.5°C) and min 46.4°F (8°C).

Temperature

In May, the average high-temperature rises from a fresh 50.5°F (10.3°C) in April to a comfortable 63.5°F (17.5°C). In Black River, in May, the average low-temperature is 46.4°F (8°C).

Humidity

In May, the average relative humidity is 79%.

Rainfall

In May, the rain falls for 16.6 days. Throughout May, 3.07" (78mm) of precipitation is accumulated. In Black River, during the entire year, the rain falls for 163.9 days and collects up to 33.19" (843mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. May is the last month it regularly snows in Black River. During 0.8 snowfall days, Black River aggregates 0.08" (2mm) of snow. Throughout the year, there are 84.4 snowfall days, and 43.58" (1107mm) of snow is accumulated.

Daylight

In May, the average length of the day in Black River is 14h and 46min.
On the first day of May in Black River, New York, sunrise is at 5:54 am and sunset at 8:06 pm. On the last day of the month, sunrise is at 5:23 am and sunset at 8:38 pm EDT.

Sunshine

In May, the average sunshine in Black River is 8.7h.

UV index

The average daily maximum UV index in May in Black River, New York, is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: The daily maximum UV index of 4 in May interpret into the following advice:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the temperature in May in Black River?

In May, in Black River, the average high-temperature is 63.5°F (17.5°C), and the average low-temperature is 46.4°F (8°C).

What is the average humidity in May in Black River?

In Black River, the average relative humidity in May is 79%.

How many days does it rain in May in Black River?

In Black River, New York, in May, it is raining for 16.6 days, with typically 3.07" (78mm) of accumulated precipitation.

What is the last month it snows in Black River?

May is the last month it regularly snows in Black River. During 0.8 snowfall days, in May, Black River aggregates 0.08" (2mm) of snow.

How many hours of daylight does Black River have in May?

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

When is the sunrise / sunset in May in Black River?

On the first day of May in Black River, sunrise is at 5:54 am and sunset at 8:06 pm. On the last day of the month, sunrise is at 5:23 am and sunset at 8:38 pm EDT.

How long on average sun shines in May in Black River?

The average sunshine duration in May in Black River is 8.7h.

What is the UV index reading in May in Black River?

In Black River, New York, the average daily maximum UV index in May is 4. A UV Index reading of 3 to 5 represents a moderate health threat from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Black River, NY

Average temperature in May - Black River, NY
  • Average high temperature in May: 63.5°F

The warmest month (with the highest average high temperature) is July (76.6°F).
The month with the lowest average high temperature is January (26.1°F).

  • Average low temperature in May: 46.4°F

The month with the highest average low temperature is July (60.3°F).
The coldest month (with the lowest average low temperature) is January (14.4°F).

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Average pressure in May
Black River, NY

Average pressure in May - Black River, 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
Black River, NY

Average wind speed in May - Black River, NY
  • Average wind speed in May: 7.9mph

The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest month (with the lowest average wind speed) is July (6.9mph).

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Average humidity in May
Black River, NY

Average humidity in May - Black River, NY
  • Average humidity in May: 79%

The month with the highest relative humidity is January (88%).
The months with the lowest relative humidity are April and September (77%).

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Average rainfall in May
Black River, NY

Average rainfall in May - Black River, NY
  • Average rainfall in May: 3.07"

The wettest month (with the highest rainfall) is October (3.54").
The driest month (with the least rainfall) is September (1.81").

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Average rainfall days in May
Black River, NY

Average rainfall days in May - Black River, NY
  • Average rainfall days in May: 16.6 days

The month with the highest number of rainy days is October (17.7 days).
The month with the least rainy days is February (7 days).

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Average snowfall in May
Black River, NY

Average snowfall in May - Black River, NY
  • Average snowfall in May: 0.08"

The month with the highest snowfall is January (10.47").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in May
Black River, NY

Average snowfall days in May - Black River, NY
  • Average snowfall days in May: 0.8 days

The month with the highest number of snowfall days is January (19.6 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
Black River, NY

Average daylight in May / Average sunshine in May - Black River, NY
  • Average daylight in May: 14h and 46min

The month with the longest days is June (Average daylight: 15h and 26min).
The month with the shortest days is December (Average daylight: 8h and 58min).

  • Average sunshine in May: 8h and 42min

The month with the most sunshine is July (Average sunshine: 10h and 12min).
The months with the least sunshine are January and February (Average sunshine: 2h and 42min).

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Average sunshine days in May
Black River, NY

Average sunshine days in May - Black River, NY
  • Average sunshine days in May: 11.7 days

The month with the most sunshine days is September (15.1 days).
The month with the least sunshine days is February (6.7 days).

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Average UV index in May
Black River, NY

Average UV index in May - Black River, 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).

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Average cloud cover in May
Black River, NY

Average cloud cover in May - Black River, NY
  • Average cloud cover in May: 43

The month with the most cloud cover is January (Cloud cover 74).
The month with the least cloud cover is August (Cloud cover 31).

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Average visibility in May
Black River, NY

Average visibility in May - Black River, NY
  • Average visibility in May: 6mi

The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is January (4mi).

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