May weather forecast and climate
Cortland, NE

May, the last month of the spring, in Cortland, is a pleasant month, with average temperature varying between 71.6°F (22°C) and 53.8°F (12.1°C).

Temperature

In Cortland, the average high-temperature rises, from an enjoyable 62.6°F (17°C) in April, to an agreeable 71.6°F (22°C). In Cortland, in May, the average low-temperature is 53.8°F (12.1°C).

Humidity

In Cortland, the average relative humidity in May is 72%.

Rainfall

The month with the most rainfall in Cortland is May when the rain falls for 16.5 days and typically aggregates up to 3.66" (93mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall in Cortland. May is the last month it regularly snows. During 0.2 snowfall days, Cortland aggregates 0.2" (5mm) of snow. Throughout the year, there are 22.2 snowfall days, and 10.71" (272mm) of snow is accumulated.

Daylight

The average length of the day in May is 14.5h.

Sunshine

In May, the average sunshine is 8.7h.

UV index

In Cortland, the average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to the Sun's UV rays for the average person.
Note: The daily maximum UV index of 5 interpret into the following advice:
Take precautions - Protection against sunburn is recommended. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. 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. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.

What is the temperature in May in Cortland?

In Cortland, Nebraska, in May, the average high-temperature is 71.6°F (22°C), and the average low-temperature is 53.8°F (12.1°C).

What is the average humidity in May in Cortland?

In Cortland, Nebraska, the average relative humidity in May is 72%.

How many days does it rain in May in Cortland?

In Cortland, in May, it is raining for 16.5 days, with typically 3.66" (93mm) of accumulated precipitation.

What is the wettest month in Cortland?

The month with the most rainfall in Cortland is May when the rain falls for 16.5 days and typically aggregates up to 3.66" (93mm) of precipitation.

What is the last month it snows in Cortland?

May is the last month it regularly snows. During 0.2 snowfall days, in May, Cortland aggregates 0.2" (5mm) of snow.

What is the average length of the day in May in Cortland?

In Cortland, Nebraska, the average length of the day in May is 14.5h.

How many hours of sunshine does Cortland have in May?

In Cortland, Nebraska, the average sunshine in May is 8.7h.

What is the UV index reading in May in Cortland?

In May, the average daily maximum UV index in Cortland, Nebraska, is 5. A UV Index reading of 3 to 5 represents a medium health risk from the exposure to the Sun's UV rays.
Average temperature in May - Cortland, NE
  • Average high temperature in May: 71.6°F

The warmest month (with the highest average high temperature) is July (86.7°F).
The month with the lowest average high temperature is January (33.3°F).

  • Average low temperature in May: 53.8°F

The month with the highest average low temperature is July (67.3°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).

Average pressure in May - Cortland, NE
  • Average pressure in May: 29.91"

The month with the highest atmospheric pressure is January (30.16").
The month with the lowest atmospheric pressure is June (29.85").

Average wind speed in May - Cortland, NE
  • Average wind speed in May: 9.8mph

The windiest month (with the highest average wind speed) is April (11.4mph).
The calmest month (with the lowest average wind speed) is July (7.8mph).

Average humidity in May - Cortland, NE
  • Average humidity in May: 72%

The month with the highest relative humidity is January (78%).
The month with the lowest relative humidity is October (64%).

Average rainfall in May - Cortland, NE
  • Average rainfall in May: 3.66"

The wettest month (with the highest rainfall) is May (3.66").
The driest month (with the least rainfall) is February (0.67").

Average rainfall days in May - Cortland, NE
  • Average rainfall days in May: 16.5 days

The month with the highest number of rainy days is May (16.5 days).
The month with the least rainy days is February (2.8 days).

Average snowfall in May - Cortland, NE
  • Average snowfall in May: 0.2"

The month with the highest snowfall is January (2.83").
Months with the least snowfall are June, July, August and September (0").

Average snowfall days in May - Cortland, NE
  • Average snowfall days in May: 0.2 days

The month with the highest number of snowfall days is February (5.6 days).
Months with the least snowfall days are June, July, August and September (0 days).

Average daylight in May / Average sunshine in May - Cortland, NE
  • Average daylight in May: 14.5h

The month with the longest days is June (Average daylight: 15h).
The month with the shortest days is December (Average daylight: 9.3h).

  • Average sunshine in May: 8.7h

The month with the most sunshine is July (Average sunshine: 10.5h).
The month with the least sunshine is January (Average sunshine: 5.1h).

Average sunshine days in May - Cortland, NE
  • Average sunshine days in May: 12.3 days

The month with the most sunshine days is November (22.8 days).
The month with the least sunshine days is May (12.3 days).

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

Months with the highest UV index are June, July and August (UV index 6).
Months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in May - Cortland, NE
  • Average cloud cover in May: 40

The month with the most cloud cover is March (Cloud cover 44).
The month with the least cloud cover is July (Cloud cover 25).

Average visibility in May - Cortland, NE
  • Average visibility in May: 6mi

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