Climate and monthly weather forecast
Greenwich, NY

Share

Weather in January

January, like December, is a freezing cold winter month in Greenwich, New York, with an average temperature fluctuating between 27.9°F (-2.3°C) and 16.3°F (-8.7°C). January, with an average high of 27.9°F (-2.3°C) and a low of 16.3°F (-8.7°C), signifies the coldest month of the year. Weather in January »

Weather in February

February, the last month of the winter in Greenwich, is another freezing cold month, with an average temperature varying between 17.1°F (-8.3°C) and 30.9°F (-0.6°C). The transition into February notes an average high-temperature of a still subzero cold 30.9°F (-0.6°C), revealing a mild distinction from the 27.9°F (-2.3°C) in January. Weather in February »

Weather in March

The first month of the spring, March, is an icy month in Greenwich, New York, with an average temperature fluctuating between 25.5°F (-3.6°C) and 39.9°F (4.4°C). March's arrival signals a temperature shift, moving from a subzero cold 30.9°F (-0.6°C) in February to a wintry 39.9°F (4.4°C). Weather in March »

Weather in April

April is a cool spring month in Greenwich, New York, with temperature in the range of an average low of 35.6°F (2°C) and an average high of 54.1°F (12.3°C). April signals a shift in the average high-temperature, moving from March's icy 39.9°F (4.4°C) to a cool 54.1°F (12.3°C). Weather in April »

Weather in May

May, the last month of the spring in Greenwich, is an agreeable month, with an average temperature varying between 46.8°F (8.2°C) and 68°F (20°C). The shift into May is characterized by a rise in the average high-temperature, transitioning from April's cool 54.1°F (12.3°C) to a pleasant 68°F (20°C). Weather in May »

Weather in June

The first month of the summer, June, is a moderately hot month in Greenwich, New York, with temperature in the range of an average high of 74.5°F (23.6°C) and an average low of 52.9°F (11.6°C). Greenwich's June weather indicates a minor increase in high-temperatures, edging from May's agreeable 68°F (20°C) to a warm 74.5°F (23.6°C). Weather in June »

Weather in July

July, like June, in Greenwich, New York, is a moderately hot summer month, with an average temperature ranging between max 80.8°F (27.1°C) and min 58.6°F (14.8°C). Greenwich notes the warmest temperatures in July, with a high average of 80.8°F (27.1°C) and a low of 58.6°F (14.8°C). Throughout July, the heat index is appraised at a tropical 86°F (30°C). Weather in July »

Weather in August

The last month of the summer, August, is another warm month in Greenwich, New York, with an average temperature varying between 57.2°F (14°C) and 78.6°F (25.9°C). The arrival of August coincides with an average high-temperature of a still moderately hot 78.6°F (25.9°C), indicating a minimal shift from July's 80.8°F (27.1°C). Weather in August »

Weather in September

September, the first month of the autumn in Greenwich, is also an agreeable month, with an average temperature fluctuating between 51.1°F (10.6°C) and 71.6°F (22°C). Greenwich experiences a moderate temperature shift at the start of September, with average high-temperatures adjusting a bit from a moderately hot 78.6°F (25.9°C) in August to a pleasant 71.6°F (22°C). Weather in September »

Weather in October

October, like September, is another mild autumn month in Greenwich, New York, with an average temperature fluctuating between 42.6°F (5.9°C) and 57.7°F (14.3°C). The onset of October entails a temperature shift, as the average high-temperature decreases from an agreeable 71.6°F (22°C) in September to a moderate 57.7°F (14.3°C). Weather in October »

Weather in November

November, the last month of the autumn in Greenwich, is another chilly month, with temperature in the range of an average high of 44.8°F (7.1°C) and an average low of 31.5°F (-0.3°C). The commencement of November indicates a shift in the average high-temperature, receding from October's moderate 57.7°F (14.3°C) to a frosty 44.8°F (7.1°C). Weather in November »

Weather in December

December, the first month of the winter in Greenwich, is also a wintry month, with an average temperature varying between 33.8°F (1°C) and 24.1°F (-4.4°C). A shift in Greenwich's weather is observed as November turns into December, with the average high temperature reducing from a frosty 44.8°F (7.1°C) to a cold 33.8°F (1°C). Weather in December »
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What part of the year is the coldest in Greenwich?

January is the month that records the lowest temperatures in Greenwich, New York, with averages ranging from a high of 27.9°F (-2.3°C) to a low of 16.3°F (-8.7°C).

How many days does it rain in Greenwich?

Throughout the year, there are 123.3 rainfall days, and 18.62" (473mm) of precipitation is accumulated.

When does it snow in Greenwich?

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

How many days does it snow in Greenwich?

In Greenwich, New York, during the entire year, snow falls for 37.3 days and aggregates up to 16.57" (421mm) of snow.

What is the month with the lowest UV index in Greenwich?

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

What is the most humid month in Greenwich?

With an average relative humidity of 83%, February is the most humid month.

What is the snowiest month in Greenwich?

The month with the most snowfall in Greenwich, New York, is February, when snow falls for 9.3 days and typically aggregates up to 5" (127mm) of snow.

What is the month with the least sunshine in Greenwich?

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

What is the driest month in Greenwich?

March is the month with the least rainfall. Rain falls for 9.7 days and accumulates 1.1" (28mm) of precipitation.

When is Daylight Saving Time (DST) in Greenwich?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, 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 Greenwich?

With an average relative humidity of 73%, April is the least humid month.

When is the highest UV index in Greenwich?

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

When it does not snow in Greenwich?

In Greenwich, New York, snow does not fall in June through September.

When are the longest days in Greenwich?

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

What are the warmest months in Greenwich?

July, on average, is the warmest month in Greenwich, registering a high temperature of 80.8°F (27.1°C) and a low of 58.6°F (14.8°C).

What is the wettest month in Greenwich?

The month with the most rainfall in Greenwich, New York, is July, when the rain falls for 13.3 days and typically aggregates up to 2.01" (51mm) of precipitation.

What month has the most sunshine in Greenwich?

The month with the most sunshine is July, with an average of 10.5h of sunshine.

What is the month with the shortest days in Greenwich?

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

Average temperature
Greenwich, NY

Average temperature - Greenwich, 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 (27.9°F).

The month with the highest average low temperature is July (58.6°F).
The coldest month (with the lowest average low temperature) is January (16.3°F).

Average pressure
Greenwich, NY

Average pressure - Greenwich, 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).

Average wind speed
Greenwich, NY

Average wind speed - Greenwich, NY

The windiest months (with the highest average wind speed) are January and April (7.5mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).

Average humidity
Greenwich, NY

Average humidity - Greenwich, NY

The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is April (73%).

Average rainfall
Greenwich, NY

Average rainfall - Greenwich, NY

The wettest month (with the highest rainfall) is July (2.01").
The driest month (with the least rainfall) is March (1.1").

Average rainfall days
Greenwich, NY

Average rainfall days - Greenwich, NY

The month with the highest number of rainy days is June (14.1 days).
The month with the least rainy days is January (4 days).

Average snowfall
Greenwich, NY

Average snowfall - Greenwich, NY

The month with the highest snowfall is February (5").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days
Greenwich, NY

Average snowfall days - Greenwich, 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).

Average daylight / Average sunshine
Greenwich, NY

Average daylight / Average sunshine - Greenwich, 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 30min).
The month with the least sunshine is February (Average sunshine: 3h and 48min).

Average sunshine days
Greenwich, NY

Average sunshine days - Greenwich, NY

The month with the most sunshine days is January (20.4 days).
The month with the least sunshine days is June (14.3 days).

Average UV index
Greenwich, NY

Average UV index - Greenwich, 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 and December (UV index 1).

Average visibility
Greenwich, NY

Average visibility - Greenwich, NY

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

Greenwich, New York, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location