August weather forecast
New Rochelle, NY

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Weather in August

August in New Rochelle continues to dish out summer's quintessential warm weather. Despite a slight fall in temperature compared to July, with highs reaching up to 81.3°F (27.4°C), August still falls well within the summer spectrum. This month also witnesses slightly increased rainfall compared to previous months, making for sporadic yet brief rain showers. As the city progresses into September, the prevalent warmth begins to simmer down, gradually making way for the milder fall temperatures.

Temperature

New Rochelle transitions into August recording an average high-temperature of a still moderately hot 81.3°F (27.4°C), closely aligning with the preceding month's temperature. During August, New Rochelle witnesses a consistent average low-temperature of 68.9°F (20.5°C).

Heat index

August's mean heat index is calculated to be a hot 86°F (30°C). With constant exposure and activity, a state of weariness might ensue, leading to potential heat cramps.
Know that the heat index computations account for shaded terrains and slight winds. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', arises from combining readings of air temperature and relative moisture content. Elements such as metabolic variations, pregnancy, and physical exertion can influence one's weather perception. Always consider that direct sunlight exposure might heighten the heat's effects, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Youngsters generally face more threats than adults given their lesser ability to sweat. Coupled with their larger skin surface relative to their small bodies and higher heat production due to their activities, they are more endangered.

Humidity

The least humid month is August, with an average relative humidity of 70%.

Rainfall

In New Rochelle, in August, it is raining for 15.4 days, with typically 2.6" (66mm) of accumulated precipitation. In New Rochelle, during the entire year, the rain falls for 150.3 days and collects up to 27.72" (704mm) of precipitation.

Snowfall

May through October are months without snowfall in New Rochelle.

Daylight

In New Rochelle, the average length of the day in August is 13h and 46min.
On the first day of the month, sunrise is at 5:52 am and sunset at 8:10 pm. On the last day of August, in New Rochelle, sunrise is at 6:21 am and sunset at 7:28 pm EDT.

Sunshine

The average sunshine in August is 10.5h.

UV index

June through August, with an average maximum UV index of 6, are months with the highest UV index in New Rochelle, New York. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: A maximum daily UV index of 6 during August morphs into the following directions:
Undertake protective measures and comply with sun safety rules. Shielding against skin and eye damage is essential. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
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Frequently asked questions

What are August temperatures in New Rochelle?

In August, the average high-temperature and low-temperature in New Rochelle, New York, are 81.3°F (27.4°C) and 68.9°F (20.5°C) respectively. The average heat index (a.k.a. 'apparent temperature', 'real feel'), which calculates the temperature value influenced by the moisture in the air, in August is calculated to be 86°F (30°C).

What is the least humid month in New Rochelle?

August is the least humid month in New Rochelle, New York, with an average relative humidity of 70%.

What is the average humidity in August in New Rochelle?

In August, the average relative humidity is 70%.

How many days does it rain in August in New Rochelle?

In New Rochelle, in August, during 15.4 rainfall days, 2.6" (66mm) of precipitation is typically accumulated.

When it does not snow in New Rochelle?

May through October are months without snowfall.

How many hours of daylight does New Rochelle have in August?

The average day length in August in New Rochelle, New York, is 13h and 46min.

When is the sunrise / sunset in August in New Rochelle?

In August, on the first day of the month, sunrise is at 5:52 am and sunset at 8:10 pm. On the last day of the month, sunrise is at 6:21 am and sunset at 7:28 pm EDT.

How long on average sun shines in August in New Rochelle?

The average sunshine duration in August in New Rochelle, New York, is 10.5h.

When is the highest UV index in New Rochelle?

The months with the highest UV index are June through August, with an average maximum UV index of 6.

What is the UV index intensity in August in New Rochelle?

In New Rochelle, New York, the average daily maximum UV index in August is 6. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation.
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 August
New Rochelle, NY

Average temperature in August - New Rochelle, NY
  • Average high temperature in August: 81.3°F

The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (36.3°F).

  • Average low temperature in August: 68.9°F

The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (25.9°F).

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Average pressure in August
New Rochelle, NY

Average pressure in August - New Rochelle, NY
  • Average pressure in August: 29.98"Hg

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 in August
New Rochelle, NY

Average wind speed in August - New Rochelle, NY
  • Average wind speed in August: 6.6mph

The windiest month (with the highest average wind speed) is January (9.9mph).
The calmest month (with the lowest average wind speed) is July (6.5mph).

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Average humidity in August
New Rochelle, NY

Average humidity in August - New Rochelle, NY
  • Average humidity in August: 70%

The months with the highest relative humidity are February and December (75%).
The month with the lowest relative humidity is August (70%).

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Average rainfall in August
New Rochelle, NY

Average rainfall in August - New Rochelle, NY
  • Average rainfall in August: 2.6"

The wettest month (with the highest rainfall) is July (3.23").
The driest months (with the least rainfall) are January and February (1.69").

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Average rainfall days in August
New Rochelle, NY

Average rainfall days in August - New Rochelle, NY
  • Average rainfall days in August: 15.4 days

The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is January (7.3 days).

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Average snowfall in August
New Rochelle, NY

Average snowfall in August - New Rochelle, NY
  • Average snowfall in August: 0"

The month with the highest snowfall is March (2.8").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in August
New Rochelle, NY

Average snowfall days in August - New Rochelle, NY
  • Average snowfall days in August: 0 days

The months with the highest number of snowfall days are January and February (5.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average daylight in August /
Average sunshine in August
New Rochelle, NY

Average daylight in August / Average sunshine in August - New Rochelle, NY
  • Average daylight in August: 13h and 5min

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in August: 10h and 3min

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).

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Average sunshine days in August
New Rochelle, NY

Average sunshine days in August - New Rochelle, NY
  • Average sunshine days in August: 13.2 days

The month with the most sunshine days is January (19.6 days).
The month with the least sunshine days is July (12 days).

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Average UV index in August
New Rochelle, NY

Average UV index in August - New Rochelle, NY
  • Average UV index in August: 6

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

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Average cloud cover in August
New Rochelle, NY

Average cloud cover in August - New Rochelle, NY
  • Average cloud cover in August: 29

The months with the most cloud cover are February, March and December (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 29).

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Average visibility in August
New Rochelle, NY

Average visibility in August - New Rochelle, NY
  • Average visibility in August: 6mi

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

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New Rochelle, New York, USA

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