Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average snowfall in May
- Average snowfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
The arrival of May signals an increase in the average high-temperature, moving from a cool 52.3°F (11.3°C) in April to a refreshing 65.7°F (18.7°C). During the month of May, the temperature in Cortland generally drops to a low average of 46°F (7.8°C).Humidity
The months with the lowest humidity are April and May, with an average relative humidity of 80%.Rainfall
The wettest months in Cortland are May and July, with an average 2.48" (63mm) of rainfall.Snowfall
January through May, October through December are months with snowfall in Cortland. May is the last month it regularly snows. During 0.6 snowfall days, in May, Cortland aggregates 0.16" (4mm) of snow. Throughout the year, there are 79.7 snowfall days, and 24.06" (611mm) of snow is accumulated.Daylight
The average length of the day in May is 14h and 38min.On the first day of May, sunrise is at 5:58 am and sunset at 8:05 pm. On the last day of the month, sunrise is at 5:29 am and sunset at 8:35 pm EDT.
Sunshine
In Cortland, the average sunshine in May is 8.3h.UV index
May through August, with an average maximum UV index of 5, are months with the highest UV index. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: An average UV index of 5 in May transforms into this advice:
Make use of precautions - Shielding skin and eyes from injury is a requirement. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Cortland in May?
What is the least humid month?
What is the average humidity in May?
What is the rainiest month?
How many days does it rain in May?
What is the last month it snows in Cortland?
What is the average length of the day in May?
When are sunrise and sunset in May?
How many hours of sunshine does Cortland have in May?
When is the highest UV index?
What is the UV index reading in May?
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).
Average pressure in May
Cortland, NY
- Average pressure in May: 29.99"Hg
The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
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).
Average humidity in May
Cortland, NY
- Average humidity in May: 80%
The months with the highest relative humidity are January and February (88%).
The months with the lowest relative humidity are April and May (80%).
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").
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).
Average snowfall in May
Cortland, NY
- Average snowfall in May: 0.16"
The month with the highest snowfall is February (5.75").
The months with the least snowfall are June, July, August and September (0").
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).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Cortland, NY
- Average daylight in May: 14h and 4min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in May: 8h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 2h and 24min).
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).
Average UV index in May
Cortland, 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, February and December (UV index 1).
Average cloud cover in May
Cortland, NY
- Average cloud cover in May: 48
The months with the most cloud cover are January and February (Cloud cover 74).
The months with the least cloud cover are July and August (Cloud cover 36).
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).
Cortland, New York, USA
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