Climate and monthly weather forecast
Groton, NY

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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 »
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Frequently asked questions

What part of the year is the coldest in Groton?

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.

What is the driest month in Groton?

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.

How much does it rain in Groton?

In Groton, New York, during the entire year, the rain falls for 143 days and collects up to 21.3" (541mm) of precipitation.

When does it snow in Groton?

Months with snowfall in Groton are January through May, October through December.

How much does it snow in Groton?

In Groton, New York, during the entire year, snow falls for 68.6 days and aggregates up to 18.98" (482mm) of snow.

When is the lowest UV index in Groton?

January, February and December, with an average maximum UV index of 1, are months with the lowest UV index in Groton, New York.

What is the most humid month in Groton?

With an average relative humidity of 88%, February is the most humid month.

What is the snowiest month in Groton?

February is the month with the most snowfall. Snow falls for 15.3 days and accumulates 4.17" (106mm) of snow.

What is the month with the least sunshine in Groton?

With an average of 2.5h of sunshine, February has the least sunshine of the year in Groton.

When is Daylight Saving Time (DST) 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.

What are the least humid months in Groton?

April and May, with an average relative humidity of 79%, are the least humid months in Groton.

What is the rainiest month 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.

When it does not snow in Groton?

June through September are months without snowfall in Groton, New York.

When are the longest days in Groton?

With an average of 15h and 18min of daylight, June has the longest days of the year in Groton, New York.

What time of the year is the hottest in Groton?

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.

What month has the most sunshine in Groton?

The month with the most sunshine is July, with an average of 10.2h of sunshine.

What is the month with the highest UV index in Groton?

July is the month with the highest UV index, with an average maximum UV index of 6.

What is the month with the shortest days in Groton?

The month with the shortest days is December, with an average of 9h and 6min of daylight.

Average pressure
Groton, NY

Average pressure - Groton, NY

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

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Average wind speed
Groton, NY

Average wind speed - Groton, NY

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).

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Average humidity
Groton, NY

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%).

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Average rainfall
Groton, NY

Average rainfall - Groton, NY

The wettest month (with the highest rainfall) is June (2.44").
The driest month (with the least rainfall) is January (1.06").

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Average rainfall days
Groton, NY

Average rainfall days - Groton, NY

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).

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Average snowfall
Groton, NY

Average snowfall - Groton, NY

The month with the highest snowfall is February (4.17").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days
Groton, NY

Average snowfall days - Groton, NY

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).

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Average daylight / Average sunshine
Groton, NY

Average daylight / Average sunshine - Groton, NY

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).

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).

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Average sunshine days
Groton, NY

Average sunshine days - Groton, NY

The month with the most sunshine days is September (15.9 days).
The month with the least sunshine days is February (9.3 days).

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Average visibility
Groton, NY

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).

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Groton, New York, USA

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