August weather forecast
Katonah, NY

Weather in August

August, the last month of the summer in Katonah, is another warm month, with temperature in the range of an average low of 64.9°F (18.3°C) and an average high of 81.1°F (27.3°C).

Temperature

In Katonah, New York, the average high-temperature in August is essentially the same as in July - a still warm 81.1°F (27.3°C). The average low-temperature, in August, is 64.9°F (18.3°C).

Heat index

The average heat index in August is computed to be 85.5°F (29.7°C). Exhaustion is likely with prolonged exposure and activity. Sustaining activity may result in heat cramps.
Take into consideration that the heat index values are calculated for shade and light wind conditions. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature', 'apparent temperature', 'feels like', 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 individual, with diverse people perceiving weather differently for numerous reasons (differences in body mass, height, and shape, clothing, wind), and activity. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.

Humidity

In August, the average relative humidity is 73%.

Rainfall

In August, the rain falls for 15.1 days. Throughout August, 2.09" (53mm) of precipitation is accumulated. Throughout the year, there are 144.2 rainfall days, and 22.32" (567mm) of precipitation is accumulated.

Snowfall

June through September are months without snowfall in Katonah.

Daylight

In Katonah, New York, the average length of the day in August is 13h and 47min.
On the first day of the month, sunrise is at 5:50 am and sunset at 8:11 pm. On the last day of August, in Katonah, sunrise is at 6:20 am and sunset at 7:29 pm EDT.

Sunshine

In August, the average sunshine in Katonah is 10.4h.

UV index

The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: In August, the average maximum UV index of 6 translate into the following recommendations:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What is the temperature in August in Katonah?

The average high-temperature, in August, in Katonah, is 81.1°F (27.3°C), while the average low-temperature is 64.9°F (18.3°C). In August, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which factors the actual air temperature with the relative humidity, is computed to be 85.5°F (29.7°C).

What is the average humidity in August in Katonah?

In August, the average relative humidity in Katonah, New York, is 73%.

How much does it rain in Katonah in August?

In Katonah, New York, in August, it is raining for 15.1 days, with typically 2.09" (53mm) of accumulated precipitation.

When it does not snow in Katonah?

June through September are months without snowfall in Katonah.

What is the average length of the day in August in Katonah?

In August, the average day length is 13h and 47min.

What time are sunrise and sunset in August in Katonah?

On the first day of August, sunrise is at 5:50 am and sunset at 8:11 pm. On the last day of the month, sunrise is at 6:20 am and sunset at 7:29 pm EDT.

How long on average sun shines in August in Katonah?

In Katonah, the average sunshine duration in August is 10.4h.

What are the months with the highest UV index in Katonah?

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

How high is the UV index in August in Katonah?

In Katonah, New York, the average daily maximum UV index in August is 6. A UV Index estimate of 6 to 7 represents a high hazard to health from exposure to the Sun's UV radiation.

Average temperature in August
Katonah, NY

Average temperature in August - Katonah, NY
  • Average high temperature in August: 81.1°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 (34.5°F).

  • Average low temperature in August: 64.9°F

The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (23.2°F).

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Average pressure in August
Katonah, NY

Average pressure in August - Katonah, 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
Katonah, NY

Average wind speed in August - Katonah, NY
  • Average wind speed in August: 5.3mph

The windiest month (with the highest average wind speed) is January (8.3mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).

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Average humidity in August
Katonah, NY

Average humidity in August - Katonah, NY
  • Average humidity in August: 73%

The month with the highest relative humidity is February (78%).
The month with the lowest relative humidity is April (72%).

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Average rainfall in August
Katonah, NY

Average rainfall in August - Katonah, NY
  • Average rainfall in August: 2.09"

The wettest month (with the highest rainfall) is July (2.68").
The driest month (with the least rainfall) is February (1.18").

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Average rainfall days in August
Katonah, NY

Average rainfall days in August - Katonah, NY
  • Average rainfall days in August: 15.1 days

The month with the highest number of rainy days is July (16.5 days).
The month with the least rainy days is January (6.8 days).

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Average snowfall in August
Katonah, NY

Average snowfall in August - Katonah, NY
  • Average snowfall in August: 0"

The month with the highest snowfall is March (2.95").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in August
Katonah, NY

Average snowfall days in August - Katonah, NY
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (6.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in August /
Average sunshine in August
Katonah, NY

Average daylight in August / Average sunshine in August - Katonah, NY
  • Average daylight in August: 13h and 47min

The month with the longest days is June (Average daylight: 15h and 7min).
The month with the shortest days is December (Average daylight: 9h and 16min).

  • Average sunshine in August: 10.4h

The month with the most sunshine is July (Average sunshine: 10.5h).
The month with the least sunshine is February (Average sunshine: 4.7h).

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Average sunshine days in August
Katonah, NY

Average sunshine days in August - Katonah, NY
  • Average sunshine days in August: 13.2 days

The month with the most sunshine days is November (20.3 days).
The month with the least sunshine days is June (12.1 days).

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Average UV index in August
Katonah, NY

Average UV index in August - Katonah, 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
Katonah, NY

Average cloud cover in August - Katonah, NY
  • Average cloud cover in August: 30

The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 30).

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Average visibility in August
Katonah, NY

Average visibility in August - Katonah, 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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