Climate and monthly weather forecastGroton, NY
Climate and monthly weather forecast
Weather in January
January, the same as December, in Groton, New York, is a freezing cold winter month, with an average temperature ranging between max 27.5°F (-2.5°C) and min 16.2°F (-8.8°C). January brings the lowest temperatures, with an average high of 27.5°F (-2.5°C) and an average low of 16.2°F (-8.8°C). Weather in January »Weather in February
The last month of the winter, February, is also a subzero cold month in Groton, New York, with an average temperature fluctuating between 30.6°F (-0.8°C) and 18°F (-7.8°C). Welcoming February, Groton notes an average high-temperature of a still freezing cold 30.6°F (-0.8°C), nearly consistent with January's 27.5°F (-2.5°C). Weather in February »Weather in March
The first month of the spring, March, is a wintry month in Groton, New York, with an average temperature fluctuating between 39.7°F (4.3°C) and 25°F (-3.9°C). In Groton, the average high-temperature in March increases from a freezing cold 30.6°F (-0.8°C) in February to an icy 39.7°F (4.3°C). Weather in March »Weather in April
April in Groton, New York, is a cool spring month, with temperature in the range of an average high of 52.3°F (11.3°C) and an average low of 35.4°F (1.9°C). April brings a rise in the average high-temperature, transitioning from March's icy 39.7°F (4.3°C) to a cool 52.3°F (11.3°C). Weather in April »Weather in May
The last month of the spring, May, is a refreshing month in Groton, New York, with an average temperature varying between 66.2°F (19°C) and 46°F (7.8°C). 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). Weather in May »Weather in June
The first month of the summer, June, is a pleasant month in Groton, New York, with an average temperature varying between 72.7°F (22.6°C) and 52.5°F (11.4°C). June brings a slight rise in Groton's average high-temperature, moving from an enjoyable 66.2°F (19°C) in May to a pleasant 72.7°F (22.6°C). Weather in June »Weather in July
July is a warm summer month in Groton, New York, with an average temperature varying between 58.3°F (14.6°C) and 78.4°F (25.8°C). The temperatures reach their highest averages in July, with highs of 78.4°F (25.8°C) and lows of 58.3°F (14.6°C). Weather in July »Weather in August
The last month of the summer, August, is another warm month in Groton, New York, with an average temperature varying between 56.7°F (13.7°C) and 76.5°F (24.7°C). The advent of August reveals an average high-temperature of a still moderately hot 76.5°F (24.7°C), showing minimal difference from the prior month. Weather in August »Weather in September
September, the first month of the autumn in Groton, is still a pleasant month, with an average temperature varying between 69.6°F (20.9°C) and 50.9°F (10.5°C). September signifies a minor drop in average high-temperature, transitioning from a warm 76.5°F (24.7°C) in August to an agreeable 69.6°F (20.9°C). Weather in September »Weather in October
October, the same as September, in Groton, New York, is a moderate autumn month, with an average temperature varying between 57°F (13.9°C) and 42.3°F (5.7°C). Groton, New York, in October experiences a subtle temperature decline, with average high-temperatures reducing from a pleasant 69.6°F (20.9°C) in September to a mild 57°F (13.9°C). Weather in October »Weather in November
November, the last month of the autumn in Groton, is another chilly month, with temperature in the range of an average high of 43.9°F (6.6°C) and an average low of 31.8°F (-0.1°C). The average high-temperature decreases in November, shifting from a refreshing 57°F (13.9°C) in October to a frosty 43.9°F (6.6°C). Weather in November »Weather in December
The first month of the winter, December, is also a wintry month in Groton, New York, with an average temperature ranging between max 33.3°F (0.7°C) and min 24.4°F (-4.2°C). Groton's average high-temperature decreases in December, falling from a chilly 43.9°F (6.6°C) in November to an icy 33.3°F (0.7°C). Weather in December »Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
January, with its average high-temperature of 27.5°F (-2.5°C) and an average low-temperature of 16.2°F (-8.8°C), holds the record as the coldest month in Groton, New York.
The month with the least rainfall in Groton, New York, is January, when the rain falls for 5.4 days and typically collects 1.06" (27mm) of precipitation.
In Groton, New York, during the entire year, the rain falls for 143 days and collects up to 21.3" (541mm) of precipitation.
Months with snowfall in Groton are January through May, October through December.
In Groton, New York, during the entire year, snow falls for 68.6 days and aggregates up to 18.98" (482mm) of snow.
January, February and December, with an average maximum UV index of 1, are months with the lowest UV index in Groton, New York.
With an average relative humidity of 88%, February is the most humid month.
February is the month with the most snowfall. Snow falls for 15.3 days and accumulates 4.17" (106mm) of snow.
With an average of 2.5h of sunshine, February has the least sunshine of the year in Groton.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Groton, New York, and the time zone changes from EST to EDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from EDT to EST.
April and May, with an average relative humidity of 79%, are the least humid months in Groton.
June is the month with the most rainfall in Groton, New York. Rain falls for 15.7 days and accumulates 2.44" (62mm) of precipitation.
June through September are months without snowfall in Groton, New York.
With an average of 15h and 18min of daylight, June has the longest days of the year in Groton, New York.
July, noted for its average high-temperature of 78.4°F (25.8°C) and an average low-temperature of 58.3°F (14.6°C), is considered the warmest month in Groton, New York.
The month with the most sunshine is July, with an average of 10.2h of sunshine.
July is the month with the highest UV index, with an average maximum UV index of 6.
The month with the shortest days is December, with an average of 9h and 6min of daylight.
Average temperature
Groton, NY
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).
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
Groton, NY
- Average pressure in January:
30.06"Hg - Average pressure in February:
30.04"Hg - Average pressure in March:
30.07"Hg - Average pressure in April:
29.97"Hg - Average pressure in May:
29.99"Hg - Average pressure in June:
29.93"Hg
- Average pressure in July:
29.96"Hg - Average pressure in August:
29.99"Hg - Average pressure in September:
30.06"Hg - Average pressure in October:
30.01"Hg - Average pressure in November:
30.1"Hg - Average pressure in December:
30.07"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
Groton, NY
- Average wind speed in January:
10mph - Average wind speed in February:
9.7mph - Average wind speed in March:
9.5mph - Average wind speed in April:
9.4mph - Average wind speed in May:
7.6mph - Average wind speed in June:
6.7mph
- Average wind speed in July:
5.9mph - Average wind speed in August:
5.9mph - Average wind speed in September:
6.5mph - Average wind speed in October:
7.8mph - Average wind speed in November:
8.9mph - Average wind speed in December:
9.6mph
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
Groton, NY
The month with the highest relative humidity is February (88%).
The months with the lowest relative humidity are April and May (79%).
Average rainfall
Groton, NY
- Average rainfall in January:
1.06" - Average rainfall in February:
1.26" - Average rainfall in March:
1.34" - Average rainfall in April:
1.97" - Average rainfall in May:
2.32" - Average rainfall in June:
2.44"
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
Groton, NY
- Average rainfall days in January:
5.4 days - Average rainfall days in February:
5.2 days - Average rainfall days in March:
10.3 days - Average rainfall days in April:
14.6 days - Average rainfall days in May:
17.1 days - Average rainfall days in June:
15.7 days
- Average rainfall days in July:
17.1 days - Average rainfall days in August:
15.5 days - Average rainfall days in September:
11.8 days - Average rainfall days in October:
13.1 days - Average rainfall days in November:
9.1 days - Average rainfall days in December:
8.1 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
Groton, NY
- Average snowfall in January:
3.03" - Average snowfall in February:
4.17" - Average snowfall in March:
2.83" - Average snowfall in April:
1.57" - Average snowfall in May:
0.08" - Average snowfall in June:
0"
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
Groton, NY
- Average snowfall days in January:
14.3 days - Average snowfall days in February:
15.3 days - Average snowfall days in March:
12.1 days - Average snowfall days in April:
4.8 days - Average snowfall days in May:
0.5 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
1.6 days - Average snowfall days in November:
7.5 days - Average snowfall days in December:
12.5 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 / Average sunshine
Groton, NY
- Average daylight in January:
9h and 30min - Average daylight in February:
10h and 36min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 24min - Average daylight in May:
14h and 36min - Average daylight in June:
15h and 18min
- Average daylight in July:
14h and 54min - Average daylight in August:
13h and 54min - Average daylight in September:
12h and 30min - Average daylight in October:
11h and 0min - Average daylight in November:
9h and 48min - Average daylight in December:
9h and 6min
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 January:
2h and 42min - Average sunshine in February:
2h and 30min - Average sunshine in March:
4h and 36min - Average sunshine in April:
6h and 54min - Average sunshine in May:
8h and 24min - Average sunshine in June:
9h and 12min
- Average sunshine in July:
10h and 12min - Average sunshine in August:
9h and 54min - Average sunshine in September:
8h and 36min - Average sunshine in October:
4h and 36min - Average sunshine in November:
4h and 24min - Average sunshine in December:
3h and 0min
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
Groton, NY
- Average sunshine days in January:
13.4 days - Average sunshine days in February:
9.3 days - Average sunshine days in March:
10.8 days - Average sunshine days in April:
10.4 days - Average sunshine days in May:
11.4 days - Average sunshine days in June:
11.3 days
- Average sunshine days in July:
12.1 days - Average sunshine days in August:
11.8 days - Average sunshine days in September:
15.9 days - Average sunshine days in October:
14.2 days - Average sunshine days in November:
15.4 days - Average sunshine days in December:
13.2 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
Groton, NY
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
Groton, NY
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
Groton, NY
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).
