Climate and monthly weather forecast
Old Chatham, NY

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Weather in January

January, like December, is a freezing cold winter month in Old Chatham, New York, with temperature in the range of an average high of 29.1°F (-1.6°C) and an average low of 16.7°F (-8.5°C). Old Chatham's coldest month, January, registers temperatures that range from a high of 29.1°F (-1.6°C) to a low of 16.7°F (-8.5°C). Weather in January »

Weather in February

February, the last month of the winter in Old Chatham, is a cold month, with temperature in the range of an average high of 32.5°F (0.3°C) and an average low of 18°F (-7.8°C). Old Chatham records a slight change with February's average high-temperatures adjusting to a wintry 32.5°F (0.3°C) from January's 29.1°F (-1.6°C). Weather in February »

Weather in March

March, the first month of the spring in Old Chatham, is also an icy month, with an average temperature ranging between min 25.7°F (-3.5°C) and max 41.2°F (5.1°C). March sees a marginal temperature increase, moving from an icy 32.5°F (0.3°C) in February to a still wintry 41.2°F (5.1°C). Weather in March »

Weather in April

April is a cool spring month in Old Chatham, New York, with temperature in the range of an average high of 54.3°F (12.4°C) and an average low of 36.1°F (2.3°C). The transition to April introduces an increase in the average high-temperature, shifting from a cold 41.2°F (5.1°C) in March to a cool 54.3°F (12.4°C). Weather in April »

Weather in May

May, the last month of the spring in Old Chatham, is a refreshing month, with temperature in the range of an average high of 67.3°F (19.6°C) and an average low of 46.6°F (8.1°C). The shift from April to May is marked by an increase in the average high-temperature, moving from a cool 54.3°F (12.4°C) to a comfortable 67.3°F (19.6°C). Weather in May »

Weather in June

The first month of the summer, June, is a moderately hot month in Old Chatham, New York, with an average temperature ranging between min 53.2°F (11.8°C) and max 74.8°F (23.8°C). Old Chatham in June experiences a slight uptick in the average high-temperature, adjusting from May's comfortable 67.3°F (19.6°C) to a moderately hot 74.8°F (23.8°C). Weather in June »

Weather in July

July, like June, in Old Chatham, New York, is a moderately hot summer month, with an average temperature ranging between max 80.8°F (27.1°C) and min 59°F (15°C). July, with an average high of 80.8°F (27.1°C) and a low of 59°F (15°C), signifies the warmest month of the year. The average heat index in July is calculated to be a hot 86°F (30°C). Weather in July »

Weather in August

August, the last month of the summer in Old Chatham, is another warm month, with an average temperature ranging between max 78.8°F (26°C) and min 57.2°F (14°C). Old Chatham's shift into August is marked by a subtle change to a still warm 78.8°F (26°C) from July's 80.8°F (27.1°C) in temperature. Weather in August »

Weather in September

September, the first month of the autumn in Old Chatham, is also an agreeable month, with an average temperature ranging between max 71.2°F (21.8°C) and min 51.1°F (10.6°C). Transition into September subtly marks a drop in the average high-temperature, moderately moving from a moderately hot 78.8°F (26°C) in August to a pleasant 71.2°F (21.8°C). Weather in September »

Weather in October

October, like September, is a moderate autumn month in Old Chatham, New York, with an average temperature ranging between min 42.8°F (6°C) and max 58.1°F (14.5°C). Old Chatham, New York, observes a minor decrease in the average high-temperature with the arrival of October, falling from September's pleasant 71.2°F (21.8°C) to a refreshing 58.1°F (14.5°C). Weather in October »

Weather in November

November, the last month of the autumn in Old Chatham, is another chilly month, with an average temperature fluctuating between 45.5°F (7.5°C) and 32°F (0°C). The shift from October to November involves a decrease in the average high-temperature, from a refreshing 58.1°F (14.5°C) to a chilly 45.5°F (7.5°C). Weather in November »

Weather in December

December, the first month of the winter in Old Chatham, is also an icy month, with an average temperature ranging between max 34.9°F (1.6°C) and min 24.1°F (-4.4°C). A shift in the average high-temperature occurs in December, reducing from a chilly 45.5°F (7.5°C) in November to a cold 34.9°F (1.6°C). Weather in December »
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Frequently asked questions

What time of the year is the coldest in Old Chatham?

January, with its average high-temperature of 29.1°F (-1.6°C) and an average low-temperature of 16.7°F (-8.5°C), holds the record as the coldest month.

What is the driest month in Old Chatham?

January is the month with the least rainfall in Old Chatham, New York. Rain falls for 5.7 days and accumulates 1.1" (28mm) of precipitation.

How much does it rain in Old Chatham?

Throughout the year, in Old Chatham, New York, there are 135.1 rainfall days, and 20.39" (518mm) of precipitation is accumulated.

When does it snow in Old Chatham?

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

How many days does it snow in Old Chatham?

In Old Chatham, during the entire year, snow falls for 36.9 days and aggregates up to 15.98" (406mm) of snow.

What are the months with the lowest UV index in Old Chatham?

The months with the lowest UV index in Old Chatham, New York, are January through March, November and December, with an average maximum UV index of 2.

What is the most humid month in Old Chatham?

The months with the highest humidity are February and December, with an average relative humidity of 83%.

What is the month with the least sunshine in Old Chatham?

February has the least sunshine of the year in Old Chatham, with an average of 3.8h of sunshine.

When does it snow the most in Old Chatham?

The month with the most snowfall in Old Chatham, New York, is March, when snow falls for 7.8 days and typically aggregates up to 3.9" (99mm) of snow.

When is Daylight Saving Time (DST) in Old Chatham?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Old Chatham, 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 is the least humid month in Old Chatham?

The least humid month in Old Chatham is April, with an average relative humidity of 75%.

When is the highest UV index in Old Chatham?

The months with the highest UV index in Old Chatham are May through August, with an average maximum UV index of 5.

When it does not snow in Old Chatham?

June through September are months without snowfall in Old Chatham.

When are the longest days in Old Chatham?

June has the longest days of the year, with an average of 15h and 12min of daylight.

What time of the year is the hottest in Old Chatham?

July, having an average high-temperature of 80.8°F (27.1°C) and an average low-temperature of 59°F (15°C), is the warmest month.

What is the wettest month in Old Chatham?

July is the month with the most rainfall. Rain falls for 14.9 days and accumulates 2.4" (61mm) of precipitation.

What is the month with the most sunshine in Old Chatham?

The months with the most sunshine are July and August, with an average of 10.3h of sunshine.

What is the month with the shortest days in Old Chatham?

December has the shortest days of the year in Old Chatham, New York, with an average of 9h and 6min of daylight.

Average temperature
Old Chatham, NY

Average temperature - Old Chatham, NY

The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (29.1°F).

The month with the highest average low temperature is July (59°F).
The coldest month (with the lowest average low temperature) is January (16.7°F).

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Average pressure
Old Chatham, NY

Average pressure - Old Chatham, NY

The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed
Old Chatham, NY

Average wind speed - Old Chatham, NY

The windiest months (with the highest average wind speed) are January and March (8.2mph).
The calmest month (with the lowest average wind speed) is August (5mph).

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Average humidity
Old Chatham, NY

Average humidity - Old Chatham, NY

The months with the highest relative humidity are February and December (83%).
The month with the lowest relative humidity is April (75%).

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Average rainfall
Old Chatham, NY

Average rainfall - Old Chatham, NY

The wettest month (with the highest rainfall) is July (2.4").
The driest month (with the least rainfall) is January (1.1").

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Average rainfall days
Old Chatham, NY

Average rainfall days - Old Chatham, NY

The month with the highest number of rainy days is May (15.8 days).
The month with the least rainy days is January (5.7 days).

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Average snowfall
Old Chatham, NY

Average snowfall - Old Chatham, NY

The month with the highest snowfall is March (3.9").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days
Old Chatham, NY

Average snowfall days - Old Chatham, NY

The month with the highest number of snowfall days is February (9.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight / Average sunshine
Old Chatham, NY

Average daylight / Average sunshine - Old Chatham, NY

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).

The months with the most sunshine are July and August (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 3h and 48min).

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Average sunshine days
Old Chatham, NY

Average sunshine days - Old Chatham, NY

The month with the most sunshine days is January (20 days).
The month with the least sunshine days is June (12.5 days).

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Average UV index
Old Chatham, NY

Average UV index - Old Chatham, NY

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, March, November and December (UV index 2).

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Average visibility
Old Chatham, NY

Average visibility - Old Chatham, NY

The months with the highest visibility are January, April, November and December (6mi).
The months with the lowest visibility are February, March, May, June, July, August, September and October (5mi).

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Old Chatham, New York, USA

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