July weather forecast
Greenwich, NY

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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).

Temperature

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).

Heat index

Throughout July, the heat index is appraised at a tropical 86°F (30°C). If activity and exposure persist, they could induce fatigue, leading to possible heat cramps.
It is important to note that the heat index values are for shaded areas and light wind scenarios. With direct sunlight, the heat index could increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. Direct sun rays have a notable impact on perceived temperature, which can raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Young individuals usually face greater risks than adults as their sweat production is less. Also, their larger skin surface relative to their small bodies and the high heat generation due to their activity contributes to their vulnerability.

Humidity

In Greenwich, the average relative humidity in July is 76%.

Rainfall

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

Snowfall

June through September are months without snowfall in Greenwich.

Daylight

In July, the average length of the day in Greenwich, New York, is 14h and 59min.
On the first day of July in Greenwich, sunrise is at 5:18 am and sunset at 8:37 pm. On the last day of the month, sunrise is at 5:44 am and sunset at 8:16 pm EDT.

Sunshine

July has the most sunshine of the year, with an average of 10.5h of sunshine.

UV index

May through August, with an average maximum UV index of 5, are months with the highest UV index. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for the average person.
Note: An average maximum UV index of 5 in July leads to these recommendations:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
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Frequently asked questions

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 average July temperature in Greenwich?

In Greenwich, in July, the average high-temperature is 80.8°F (27.1°C), and the average low-temperature is 58.6°F (14.8°C). The average heat index (a.k.a. 'real feel', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, in July is appraised at 86°F (30°C).

What is the average humidity in July in Greenwich?

The average relative humidity in July is 76%.

What is the wettest month in Greenwich?

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

How much does it rain in Greenwich in July?

In Greenwich, New York, during July, the rain falls for 13.3 days and regularly aggregates up to 2.01" (51mm) of precipitation.

When it does not snow in Greenwich?

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

How many hours of daylight does Greenwich have in July?

In July, the average day length in Greenwich is 14h and 59min.

When is the sunrise / sunset in July in Greenwich?

On the first day of July, sunrise is at 5:18 am and sunset at 8:37 pm. On the last day of the month, sunrise is at 5:44 am and sunset at 8:16 pm EDT.

What month has the most sunshine in Greenwich?

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

How long on average sun shines in July in Greenwich?

In Greenwich, New York, the average sunshine duration in July is 10.5h.

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

The months with the highest UV index in Greenwich, New York, are May through August, with an average maximum UV index of 5.

What is the UV index intensity in July in Greenwich?

In Greenwich, the average daily maximum UV index in July is 5. A UV Index reading of 3 to 5 represents a medium hazard to health from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in July
Greenwich, NY

Average temperature in July - Greenwich, NY
  • Average high temperature in July: 80.8°F

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).

  • Average low temperature in July: 58.6°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).

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Average pressure in July
Greenwich, NY

Average pressure in July - Greenwich, NY
  • Average pressure in July: 29.94"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).

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Average wind speed in July
Greenwich, NY

Average wind speed in July - Greenwich, NY
  • Average wind speed in July: 5.4mph

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).

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Average humidity in July
Greenwich, NY

Average humidity in July - Greenwich, NY
  • Average humidity in July: 76%

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

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Average rainfall in July
Greenwich, NY

Average rainfall in July - Greenwich, NY
  • Average rainfall in July: 2.01"

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

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Average rainfall days in July
Greenwich, NY

Average rainfall days in July - Greenwich, NY
  • Average rainfall days in July: 13.3 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).

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Average snowfall in July
Greenwich, NY

Average snowfall in July - Greenwich, NY
  • Average snowfall in July: 0"

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

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Average snowfall days in July
Greenwich, NY

Average snowfall days in July - Greenwich, NY
  • Average snowfall days in July: 0 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).

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Average daylight in July /
Average sunshine in July
Greenwich, NY

Average daylight in July / Average sunshine in July - Greenwich, NY
  • Average daylight in July: 15h and 0min

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 July: 10h and 3min

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).

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Average sunshine days in July
Greenwich, NY

Average sunshine days in July - Greenwich, NY
  • Average sunshine days in July: 15.4 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).

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Average UV index in July
Greenwich, NY

Average UV index in July - Greenwich, NY
  • Average UV index in July: 5

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).

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Average cloud cover in July
Greenwich, NY

Average cloud cover in July - Greenwich, NY
  • Average cloud cover in July: 33

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).

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Average visibility in July
Greenwich, NY

Average visibility in July - Greenwich, NY
  • Average visibility in July: 5mi

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).

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Greenwich, New York, USA

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