January weather forecast
Katonah, NY

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Weather in January

January, like December, in Katonah, New York, is a wintry winter month, with an average temperature fluctuating between 34.5°F (1.4°C) and 23.2°F (-4.9°C).

Temperature

In Katonah, January is the month with the lowest recorded average temperatures, measuring a high of 34.5°F (1.4°C) and a low of 23.2°F (-4.9°C).

Humidity

In January, the average relative humidity in Katonah is 76%.

Rainfall

In Katonah, New York, in January, during 6.8 rainfall days, 1.26" (32mm) of precipitation is typically accumulated. Throughout the year, there are 144.2 rainfall days, and 22.32" (567mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. In Katonah, in January, snow falls for 5.9 days, with typically accumulated 1.69" (43mm) of snow. In Katonah, during the entire year, snow falls for 23.1 days and aggregates up to 9.02" (229mm) of snow.

Daylight

In Katonah, the average length of the day in January is 9h and 36min.
On the first day of the month, sunrise is at 7:20 am and sunset at 4:36 pm. On the last day of January, in Katonah, New York, sunrise is at 7:06 am and sunset at 5:09 pm EST.

Sunshine

The average sunshine in January is 5.2h.

UV index

The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for average individuals.
Note: The UV index of 2 during January translates into the following guidance:
In contrast to children, who must always be shielded from the sun, most people can tolerate up to an hour of sun exposure without any burns. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
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Frequently asked questions

What is the coldest time of year in Katonah?

January, on average, is the coldest month in Katonah, New York, registering a high temperature of 34.5°F (1.4°C) and a low of 23.2°F (-4.9°C).

How cold is it in Katonah in January?

During January, Katonah experiences an average high-temperature of 34.5°F (1.4°C) and a low-temperature of 23.2°F (-4.9°C).

What is the average humidity in January in Katonah?

The average relative humidity in January is 76%.

How much does it rain in Katonah in January?

In Katonah, during January, the rain falls for 6.8 days and regularly aggregates up to 1.26" (32mm) of precipitation.

How many days does it snow in January in Katonah?

In Katonah, New York, during January, snow falls for 5.9 days and regularly aggregates up to 1.69" (43mm) of snow.

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

In Katonah, the average day length in January is 9h and 36min.

What time are sunrise and sunset in January in Katonah?

On the first day of January in Katonah, New York, sunrise is at 7:20 am and sunset at 4:36 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 5:09 pm EST.

How long on average sun shines in January in Katonah?

In Katonah, the average sunshine duration in January is 5.2h.

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

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Katonah.

What is the UV index intensity in January in Katonah?

In Katonah, the average daily maximum UV index in January is 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
Katonah, NY

Average temperature in January - Katonah, NY
  • Average high temperature in January: 34.5°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 January: 23.2°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 January
Katonah, NY

Average pressure in January - Katonah, NY
  • Average pressure in January: 30.05"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 January
Katonah, NY

Average wind speed in January - Katonah, NY
  • Average wind speed in January: 8.3mph

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 January
Katonah, NY

Average humidity in January - Katonah, NY
  • Average humidity in January: 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 January
Katonah, NY

Average rainfall in January - Katonah, NY
  • Average rainfall in January: 1.26"

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 January
Katonah, NY

Average rainfall days in January - Katonah, NY
  • Average rainfall days in January: 6.8 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 January
Katonah, NY

Average snowfall in January - Katonah, NY
  • Average snowfall in January: 1.69"

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 January
Katonah, NY

Average snowfall days in January - Katonah, NY
  • Average snowfall days in January: 5.9 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 January /
Average sunshine in January
Katonah, NY

Average daylight in January / Average sunshine in January - Katonah, NY
  • Average daylight in January: 9h and 4min

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 January: 5h and 1min

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 January
Katonah, NY

Average sunshine days in January - Katonah, NY
  • Average sunshine days in January: 19.8 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 January
Katonah, NY

Average UV index in January - Katonah, NY
  • Average UV index in January: 2

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 January
Katonah, NY

Average cloud cover in January - Katonah, NY
  • Average cloud cover in January: 44

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 January
Katonah, NY

Average visibility in January - Katonah, NY
  • Average visibility in January: 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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Katonah, New York, USA

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