September weather forecast
Mount Kisco, NY

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Weather in September

September, the first month of the autumn in Mount Kisco, is still a warm month, with temperature in the range of an average high of 73.9°F (23.3°C) and an average low of 58.1°F (14.5°C).

Temperature

September indicates a minor shift in the average high-temperature, from August's moderately hot 81.1°F (27.3°C) to a still warm 73.9°F (23.3°C). Mount Kisco reports a consistent average low-temperature of 58.1°F (14.5°C) throughout September nights.

Humidity

In Mount Kisco, the average relative humidity in September is 76%.

Rainfall

In Mount Kisco, in September, it is raining for 12.2 days, with typically 1.5" (38mm) of accumulated precipitation. Throughout the year, in Mount Kisco, there are 144.2 rainfall days, and 22.32" (567mm) of precipitation is accumulated.

Snowfall

June through September are months without snowfall.

Daylight

The average length of the day in September in Mount Kisco is 12h and 28min.
On the first day of the month, sunrise is at 6:22 am and sunset at 7:27 pm. On the last day of September, sunrise is at 6:51 am and sunset at 6:38 pm EDT.

Sunshine

In September, the average sunshine is 8.9h.

UV index

In September, the average daily maximum UV index in Mount Kisco is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for the average person.
Note: An average maximum UV index of 4 in September leads to these recommendations:
Guard yourself - Precautionary measures against sun damage are advocated. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
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Frequently asked questions

What is the average September temperature in Mount Kisco?

The average high-temperature and low-temperature during September are 73.9°F (23.3°C) and 58.1°F (14.5°C) respectively. The average heat index (a.k.a. 'apparent temperature', 'feels like'), which factors the actual air temperature with the relative humidity, in August is evaluated at 86°F (30°C).

What is the average humidity in September in Mount Kisco?

In September, the average relative humidity in Mount Kisco is 76%.

How many days does it rain in September in Mount Kisco?

In Mount Kisco, New York, during September, the rain falls for 12.2 days and regularly aggregates up to 1.5" (38mm) of precipitation.

When it does not snow in Mount Kisco?

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

Does it snow in Mount Kisco in September?

In Mount Kisco, in September, it doesn't snow. In October, it regularly snows.

How many hours of daylight does Mount Kisco have in September?

In Mount Kisco, New York, the average day length in September is 12h and 28min.

What time are sunrise and sunset in September in Mount Kisco?

On the first day of September in Mount Kisco, New York, sunrise is at 6:22 am and sunset at 7:27 pm. On the last day of the month, sunrise is at 6:51 am and sunset at 6:38 pm EDT.

How many hours of sunshine does Mount Kisco have in September?

In September, the average sunshine duration is 8.9h.

What is the UV index reading in September in Mount Kisco?

In Mount Kisco, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium 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 September
Mount Kisco, NY

Average temperature in September - Mount Kisco, NY
  • Average high temperature in September: 73.9°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 September: 58.1°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 September
Mount Kisco, NY

Average pressure in September - Mount Kisco, NY
  • Average pressure in September: 30.06"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 September
Mount Kisco, NY

Average wind speed in September - Mount Kisco, NY
  • Average wind speed in September: 6mph

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 September
Mount Kisco, NY

Average humidity in September - Mount Kisco, NY
  • Average humidity in September: 76%

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 September
Mount Kisco, NY

Average rainfall in September - Mount Kisco, NY
  • Average rainfall in September: 1.5"

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 September
Mount Kisco, NY

Average rainfall days in September - Mount Kisco, NY
  • Average rainfall days in September: 12.2 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 September
Mount Kisco, NY

Average snowfall in September - Mount Kisco, NY
  • Average snowfall in September: 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 September
Mount Kisco, NY

Average snowfall days in September - Mount Kisco, NY
  • Average snowfall days in September: 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 September /
Average sunshine in September
Mount Kisco, NY

Average daylight in September / Average sunshine in September - Mount Kisco, NY
  • Average daylight in September: 12h and 3min

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 September: 8h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).

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Average sunshine days in September
Mount Kisco, NY

Average sunshine days in September - Mount Kisco, NY
  • Average sunshine days in September: 15.7 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 September
Mount Kisco, NY

Average UV index in September - Mount Kisco, NY
  • Average UV index in September: 4

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 September
Mount Kisco, NY

Average cloud cover in September - Mount Kisco, NY
  • Average cloud cover in September: 34

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 September
Mount Kisco, NY

Average visibility in September - Mount Kisco, NY
  • Average visibility in September: 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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Mount Kisco, New York, USA

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