May weather forecast and climate
Cortland, NY

A monument from the civil war stands high in the neat lawns near the iconic courthouse in the Courthouse Park in Cortland, New York
A monument from the civil war stands high in the neat lawns near the iconic courthouse in the Courthouse Park in Cortland, New York

Weather in May

May, the last month of the spring, in Cortland, is an enjoyable month, with average temperature varying between 46°F (7.8°C) and 65.7°F (18.7°C).

Temperature

In Cortland, the average high-temperature in May increases, from a fresh 52.3°F (11.3°C) in April, to a comfortable 65.7°F (18.7°C). In Cortland, New York, in May, the average low-temperature is 46°F (7.8°C).

Humidity

April and May, with an average relative humidity of 80%, are the least humid months.

Rainfall

Months with the most rainfall in Cortland are May and July, with an average 2.48" (63mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. May is the last month it regularly snows in Cortland. During 0.6 snowfall days, Cortland aggregates 0.16" (4mm) of snow. In Cortland, New York, during the entire year, snow falls for 79.7 days, and aggregates up to 24.06" (611mm) of snow.

Daylight

The average length of the day in May is 14.6h.

Sunshine

In May, the average sunshine in Cortland is 8.3h.

UV index

Months with the highest UV index in Cortland are May through August, with an average maximum UV index of 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to the UV radiation for ordinary individuals.
Note: The average daily UV index of 5 transform into the following instructions:
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.
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FAQ

What is the temperature in May in Cortland?

In Cortland, New York, in May, the average high-temperature is 65.7°F (18.7°C), and the average low-temperature is 46°F (7.8°C).

What is the least humid month in Cortland?

Months with the lowest humidity in Cortland are April and May, with an average relative humidity of 80%.

What is the average humidity in May in Cortland?

In May, the average relative humidity is 80%.

How many days does it rain in May in Cortland?

In May, in Cortland, New York, the rain falls for 17.1 days. Throughout May, 2.48" (63mm) of precipitation is accumulated.

What is the wettest month in Cortland?

Months with the most rainfall in Cortland, New York, are May and July, with an average 2.48" (63mm) of precipitation.

What is the last month it snows in Cortland?

May is the last month it regularly snows. During 0.6 snowfall days, in May, Cortland aggregates 0.16" (4mm) of snow.

How many hours of daylight does Cortland have in May?

In Cortland, New York, the average length of the day in May is 14.6h.

How long on average sun shines in May in Cortland?

In Cortland, New York, the average sunshine in May is 8.3h.

What are the months with the highest UV index in Cortland?

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

How high is the UV index in May in Cortland?

The average daily maximum UV index in May in Cortland, New York, is 5. A UV Index estimate of 3 to 5 represents a moderate health threat from unsafe exposure to the Sun's UV rays.

Average temperature in May
Cortland, NY

Average temperature in May - Cortland, NY
  • Average high temperature in May: 65.7°F

The warmest month (with the highest average high temperature) is July (77.9°F).
The month with the lowest average high temperature is January (27°F).

  • Average low temperature in May: 46°F

The month with the highest average low temperature is July (57.7°F).
The coldest month (with the lowest average low temperature) is January (15.8°F).

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Average pressure in May
Cortland, NY

Average pressure in May - Cortland, NY
  • Average pressure in May: 29.99"

The month with the highest atmospheric pressure is November (30.1").
The month with the lowest atmospheric pressure is June (29.93").

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Average wind speed in May
Cortland, NY

Average wind speed in May - Cortland, NY
  • Average wind speed in May: 7.7mph

The windiest month (with the highest average wind speed) is January (9.8mph).
The calmest month (with the lowest average wind speed) is August (5.9mph).

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Average humidity in May
Cortland, NY

Average humidity in May - Cortland, NY
  • Average humidity in May: 80%

Months with the highest relative humidity are January and February (88%).
Months with the lowest relative humidity are April and May (80%).

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Average rainfall in May
Cortland, NY

Average rainfall in May - Cortland, NY
  • Average rainfall in May: 2.48"

The wettest months (with the highest rainfall) are May and July (2.48").
The driest month (with the least rainfall) is November (1.34").

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Average rainfall days in May
Cortland, NY

Average rainfall days in May - Cortland, NY
  • Average rainfall days in May: 17.1 days

The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is February (5.7 days).

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Average snowfall in May
Cortland, NY

Average snowfall in May - Cortland, NY
  • Average snowfall in May: 0.16"

The month with the highest snowfall is February (5.75").
Months with the least snowfall are June, July, August and September (0").

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Average snowfall days in May
Cortland, NY

Average snowfall days in May - Cortland, NY
  • Average snowfall days in May: 0.6 days

The month with the highest number of snowfall days is January (18.2 days).
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
Cortland, NY

Average daylight in May / Average sunshine in May - Cortland, NY
  • Average daylight in May: 14.6h

The month with the longest days is June (Average daylight: 15.3h).
The month with the shortest days is December (Average daylight: 9.1h).

  • Average sunshine in May: 8.3h

The month with the most sunshine is July (Average sunshine: 10.1h).
The month with the least sunshine is February (Average sunshine: 2.4h).

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Average sunshine days in May
Cortland, NY

Average sunshine days in May - Cortland, NY
  • Average sunshine days in May: 11.3 days

The month with the most sunshine days is September (15.8 days).
The month with the least sunshine days is February (7.7 days).

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Average UV index in May
Cortland, NY

Average UV index in May - Cortland, NY
  • Average UV index in May: 5

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

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Average cloud cover in May
Cortland, NY

Average cloud cover in May - Cortland, NY
  • Average cloud cover in May: 48

Months with the most cloud cover are January and February (Cloud cover 74).
Months with the least cloud cover are July and August (Cloud cover 36).

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Average visibility in May
Cortland, NY

Average visibility in May - Cortland, NY
  • Average visibility in May: 5mi

The month with the highest visibility is April (6mi).
The month with the lowest visibility is February (4mi).

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