Climate and monthly weather forecastGreenwich, NY
Climate and monthly weather forecast
Weather in January
January, the same as December, in Greenwich, New York, is a freezing cold winter month, with an average temperature fluctuating between 16.3°F (-8.7°C) and 27.9°F (-2.3°C). Greenwich experiences its lowest temperatures in January, with an average peak of 27.9°F (-2.3°C) and a low of 16.3°F (-8.7°C). Weather in January »Weather in February
The last month of the winter, February, is another freezing cold month in Greenwich, New York, with an average temperature ranging between min 17.1°F (-8.3°C) and max 30.9°F (-0.6°C). The shift to February signals an average high-temperature of a still freezing cold 30.9°F (-0.6°C), subtly varied from January's 27.9°F (-2.3°C). Weather in February »Weather in March
March, the first month of the spring in Greenwich, is a wintry month, with an average temperature ranging between min 25.5°F (-3.6°C) and max 39.9°F (4.4°C). In March, the average high-temperature increases from a freezing cold 30.9°F (-0.6°C) in February to an icy 39.9°F (4.4°C). Weather in March »Weather in April
April is a fresh spring month in Greenwich, New York, with temperature in the range of an average high of 54.1°F (12.3°C) and an average low of 35.6°F (2°C). April witnesses an increase in the average high-temperature, moving from a cold 39.9°F (4.4°C) in March to a fresh 54.1°F (12.3°C). Weather in April »Weather in May
The last month of the spring, May, is an agreeable month in Greenwich, New York, with an average temperature ranging between min 46.8°F (8.2°C) and max 68°F (20°C). Greenwich sees an increase in average high-temperatures during May, moving from a fresh 54.1°F (12.3°C) in April to a pleasant 68°F (20°C). Weather in May »Weather in June
The first month of the summer, June, is a warm 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). June's arrival signals a modest temperature shift, moving from an agreeable 68°F (20°C) in May 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 fluctuating between 80.8°F (27.1°C) and 58.6°F (14.8°C). The month of July, characterized by an average high of 80.8°F (27.1°C) and a low of 58.6°F (14.8°C), is recognized as the warmest. The heat index value during July is computed to be 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 temperature in the range of an average low of 57.2°F (14°C) and an average high of 78.6°F (25.9°C). The arrival of August coincides with an average high-temperature of a still warm 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
The first month of the autumn, September, is also an agreeable month in Greenwich, New York, with an average temperature varying between 71.6°F (22°C) and 51.1°F (10.6°C). In Greenwich, the average high-temperature in September slightly decreases 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, the same as September, in Greenwich, New York, is a moderate autumn month, with an average temperature ranging between max 57.7°F (14.3°C) and min 42.6°F (5.9°C). A shift in the average high-temperature occurs in October, reducing 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
The last month of the autumn, November, is also a frosty month in Greenwich, New York, with an average temperature varying between 44.8°F (7.1°C) and 31.5°F (-0.3°C). November's arrival comes with a decrease in the average high-temperature, moving from a refreshing 57.7°F (14.3°C) in October to a chilly 44.8°F (7.1°C). Weather in November »Weather in December
The first month of the winter, December, is also an icy month in Greenwich, New York, with an average temperature varying between 33.8°F (1°C) and 24.1°F (-4.4°C). The onset of December brings a small change in high-temperatures, falling from a frosty 44.8°F (7.1°C) in November to a wintry 33.8°F (1°C). Weather in December »Updated: Jul 3, 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
The lowest temperatures are recorded in January, with averages reaching a high of 27.9°F (-2.3°C) and a low of 16.3°F (-8.7°C).
In Greenwich, during the entire year, the rain falls for 123.3 days and collects up to 18.62" (473mm) of precipitation.
January through May, October through December are months with snowfall.
In Greenwich, during the entire year, snow falls for 37.3 days and aggregates up to 16.57" (421mm) of snow.
The months with the lowest UV index are January and December, with an average maximum UV index of 1.
The most humid month is February, with an average relative humidity of 83%.
February is the month with the most snowfall in Greenwich. Snow falls for 9.3 days and accumulates 5" (127mm) of snow.
February has the least sunshine of the year, with an average of 3.8h of sunshine.
March is the month with the least rainfall. Rain falls for 9.7 days and accumulates 1.1" (28mm) of precipitation.
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.
The least humid month is April, with an average relative humidity of 73%.
The months with the highest UV index are May through August, with an average maximum UV index of 5.
June through September are months without snowfall.
With an average of 15h and 18min of daylight, June has the longest days of the year.
The warmest period tends to be July, when average temperatures fluctuate between a high of 80.8°F (27.1°C) and a low of 58.6°F (14.8°C).
July is the month with the most rainfall. Rain falls for 13.3 days and accumulates 2.01" (51mm) of precipitation.
July has the most sunshine of the year, with an average of 10.5h of sunshine.
December has the shortest days of the year, with an average of 9h and 6min of daylight.
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 in January:
30.03"Hg - Average pressure in February:
30.01"Hg - Average pressure in March:
30.05"Hg - Average pressure in April:
29.96"Hg - Average pressure in May:
29.99"Hg - Average pressure in June:
29.92"Hg
- Average pressure in July:
29.94"Hg - Average pressure in August:
29.97"Hg - Average pressure in September:
30.05"Hg - Average pressure in October:
30.01"Hg - Average pressure in November:
30.09"Hg - Average pressure in December:
30.06"Hg
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 in January:
7.5mph - Average wind speed in February:
7.3mph - Average wind speed in March:
7.4mph - Average wind speed in April:
7.5mph - Average wind speed in May:
6.3mph - Average wind speed in June:
5.7mph
- Average wind speed in July:
5.4mph - Average wind speed in August:
5.1mph - Average wind speed in September:
5.5mph - Average wind speed in October:
6.3mph - Average wind speed in November:
6.9mph - Average wind speed in December:
7mph
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
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 in January:
1.14" - Average rainfall in February:
1.3" - Average rainfall in March:
1.1" - Average rainfall in April:
1.61" - Average rainfall in May:
1.81" - Average rainfall in June:
1.93"
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 in January:
4 days - Average rainfall days in February:
6 days - Average rainfall days in March:
9.7 days - Average rainfall days in April:
13.2 days - Average rainfall days in May:
13.7 days - Average rainfall days in June:
14.1 days
- Average rainfall days in July:
13.3 days - Average rainfall days in August:
12.1 days - Average rainfall days in September:
10.1 days - Average rainfall days in October:
11.7 days - Average rainfall days in November:
8.6 days - Average rainfall days in December:
6.8 days
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
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 in January:
8 days - Average snowfall days in February:
9.3 days - Average snowfall days in March:
7.9 days - Average snowfall days in April:
2 days - Average snowfall days in May:
0.2 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:
0.5 days - Average snowfall days in November:
3.1 days - Average snowfall days in December:
6.3 days
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 in January:
9h and 24min - 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 42min - Average daylight in June:
15h and 18min
- Average daylight in July:
15h and 0min - 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 42min - 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:
4h and 6min - Average sunshine in February:
3h and 48min - Average sunshine in March:
5h and 42min - Average sunshine in April:
7h and 54min - Average sunshine in May:
8h and 54min - Average sunshine in June:
9h and 30min
- Average sunshine in July:
10h and 30min - Average sunshine in August:
10h and 24min - Average sunshine in September:
9h and 0min - Average sunshine in October:
5h and 30min - Average sunshine in November:
5h and 18min - Average sunshine in December:
4h and 18min
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 in January:
20.4 days - Average sunshine days in February:
15.7 days - Average sunshine days in March:
15.3 days - Average sunshine days in April:
14.4 days - Average sunshine days in May:
15.1 days - Average sunshine days in June:
14.3 days
- Average sunshine days in July:
15.4 days - Average sunshine days in August:
16.9 days - Average sunshine days in September:
18.2 days - Average sunshine days in October:
17 days - Average sunshine days in November:
19.1 days - Average sunshine days in December:
19.2 days
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
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 cloud cover
Greenwich, NY
The month with the most cloud cover is February (Cloud cover 59).
The months with the least cloud cover are July and August (Cloud cover 33).
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).
