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
Groton's transition into May brings a rise in the average high-temperature, moving from a fresh 52.3°F (11.3°C) in April to an enjoyable 66.2°F (19°C). In May, Groton experiences a temperature dip to an average of 46°F (7.8°C) at night.Humidity
April and May, with an average relative humidity of 79%, are the least humid months.Rainfall
In May, the rain falls for 17.1 days. Throughout May, 2.32" (59mm) of precipitation is accumulated. In Groton, during the entire year, the rain falls for 143 days and collects up to 21.3" (541mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in Groton. May is the last month it regularly snows. During 0.5 snowfall days, in May, Groton aggregates 0.08" (2mm) of snow. In Groton, during the entire year, snow falls for 68.6 days and aggregates up to 18.98" (482mm) of snow.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 8:06 pm. On the last day of the month, sunrise is at 5:30 am and sunset at 8:36 pm EDT.
Sunshine
The average sunshine in May is 8.4h.UV index
The average daily maximum UV index in May in Groton is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum UV index of 5 during May translates into these guidelines:
Exercise caution. Those with pale skin may experience burns in less than half an hour. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Groton in May?
What is the least humid month in Groton?
What is the average humidity in May in Groton?
How many days does it rain in May in Groton?
What is the last month it snows in Groton?
What is the average length of the day in May in Groton?
What time are sunrise and sunset in May in Groton?
How long on average sun shines in May in Groton?
How high is the UV index in May in Groton?
Average temperature in May
Groton, NY
- Average high temperature in May: 66.2°F
The warmest month (with the highest average high temperature) is July (78.4°F).
The month with the lowest average high temperature is January (27.5°F).
- Average low temperature in May: 46°F
The month with the highest average low temperature is July (58.3°F).
The coldest month (with the lowest average low temperature) is January (16.2°F).
Average pressure in May
Groton, 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
Groton, NY
- Average wind speed in May: 7.6mph
The windiest month (with the highest average wind speed) is January (10mph).
The calmest months (with the lowest average wind speed) are July and August (5.9mph).
Average humidity in May
Groton, NY
- Average humidity in May: 79%
The month with the highest relative humidity is February (88%).
The months with the lowest relative humidity are April and May (79%).
Average rainfall in May
Groton, NY
- Average rainfall in May: 2.32"
The wettest month (with the highest rainfall) is June (2.44").
The driest month (with the least rainfall) is January (1.06").
Average rainfall days in May
Groton, NY
- Average rainfall days in May: 17.1 days
The months with the highest number of rainy days are May and July (17.1 days).
The month with the least rainy days is February (5.2 days).
Average snowfall in May
Groton, NY
- Average snowfall in May: 0.08"
The month with the highest snowfall is February (4.17").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Groton, NY
- Average snowfall days in May: 0.5 days
The month with the highest number of snowfall days is February (15.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Groton, 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 12min).
The month with the least sunshine is February (Average sunshine: 2h and 30min).
Average sunshine days in May
Groton, NY
- Average sunshine days in May: 11.4 days
The month with the most sunshine days is September (15.9 days).
The month with the least sunshine days is February (9.3 days).
Average UV index in May
Groton, NY
- Average UV index in May: 5
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February and December (UV index 1).
Average cloud cover in May
Groton, NY
- Average cloud cover in May: 47
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
Groton, NY
- Average visibility in May: 5mi
The month with the highest visibility is April (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October, November and December (5mi).
Groton, New York, USA
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