January weather forecast
Cortland, NY

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A monument from the civil war stands high in the neat lawns near the iconic courthouse in the Courthouse Park in Cortland, New York
A monument from the civil war stands high in the neat lawns near the iconic courthouse in the Courthouse Park in Cortland, New York

Weather in January

The New Year in Cortland, New York, begins with January, embodying the true spirit of winter. Temperatures roughly circle between 15.8°F (-9°C) and 27°F (-2.8°C), making it one of the coldest months of the year. Snowfall reaches 4.49" (114mm), and the wind gusts frequently hit speeds of 15.9mph (25.6km/h). Cortland gets enveloped in a white blanket, transforming the city into a picturesque winter wonderland. The frosty weather persists, underlining the importance of adequate cold-weather preparations.

Temperature

January, noted for its average high-temperature of 27°F (-2.8°C) and an average low-temperature of 15.8°F (-9°C), is considered the coldest month in Cortland.

Humidity

The months with the highest humidity in Cortland are January and February, with an average relative humidity of 88%.

Rainfall

In Cortland, during January, the rain falls for 5.9 days and regularly aggregates up to 1.42" (36mm) of precipitation. In Cortland, during the entire year, the rain falls for 149.8 days and collects up to 22.36" (568mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall in Cortland, New York. In Cortland, in January, during 18.2 snowfall days, 4.49" (114mm) of snow is typically accumulated. Throughout the year, in Cortland, New York, there are 79.7 snowfall days, and 24.06" (611mm) of snow is accumulated.

Daylight

In January, the average length of the day is 9h and 29min.
On the first day of the month, sunrise is at 7:34 am and sunset at 4:41 pm. On the last day of January, in Cortland, sunrise is at 7:19 am and sunset at 5:16 pm EST.

Sunshine

In January, the average sunshine is 2.7h.

UV index

The months with the lowest UV index are January, February and December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for the ordinary person.
Note: The maximum UV index of 1 during January leads to these instructions:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Always opt for UVA and UVB-resistant sunglasses on radiant days. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
Updated: Feb 13, 2024 | Published by: Weather Atlas | Resources

Frequently asked questions

What is the coldest month in Cortland?

January, having an average high-temperature of 27°F (-2.8°C) and an average low-temperature of 15.8°F (-9°C), is the coldest month in Cortland, New York.

How cold is January in Cortland?

The average high-temperature, in January, in Cortland, is 27°F (-2.8°C), while the average low-temperature is 15.8°F (-9°C).

What are the most humid months in Cortland?

The months with the highest humidity in Cortland, New York, are January and February, with an average relative humidity of 88%.

What is the average humidity in January in Cortland?

The average relative humidity in January in Cortland, New York, is 88%.

How much does it rain in Cortland in January?

In January, in Cortland, New York, the rain falls for 5.9 days. Throughout January, 1.42" (36mm) of precipitation is accumulated.

How many days does it snow in January in Cortland?

In January, in Cortland, it is snowing for 18.2 days. Throughout January, 4.49" (114mm) of snow is accumulated.

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

In January, the average day length is 9h and 29min.

When is the sunrise / sunset in January in Cortland?

On the first day of January in Cortland, New York, sunrise is at 7:34 am and sunset at 4:41 pm. On the last day of the month, sunrise is at 7:19 am and sunset at 5:16 pm EST.

How long on average sun shines in January in Cortland?

In Cortland, New York, the average sunshine duration in January is 2.7h.

When is the lowest UV index in Cortland?

The months with the lowest UV index in Cortland, New York, are January, February and December, with an average maximum UV index of 1.

How high is the UV index in January in Cortland?

In January, the average daily maximum UV index in Cortland is 1. A UV Index reading of 2, and below, represents a low health threat from unprotected exposure to UV radiation.
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
Cortland, NY

Average temperature in January - Cortland, NY
  • Average high temperature in January: 27°F

The warmest month (with the highest average high temperature) is July (77.9°F).
The month with the lowest average high temperature is January (27°F).

  • Average low temperature in January: 15.8°F

The month with the highest average low temperature is July (57.7°F).
The coldest month (with the lowest average low temperature) is January (15.8°F).

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Average pressure in January
Cortland, NY

Average pressure in January - Cortland, NY
  • Average pressure in January: 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 January
Cortland, NY

Average wind speed in January - Cortland, NY
  • Average wind speed in January: 9.8mph

The windiest month (with the highest average wind speed) is January (9.8mph).
The calmest month (with the lowest average wind speed) is August (5.9mph).

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Average humidity in January
Cortland, NY

Average humidity in January - Cortland, NY
  • Average humidity in January: 88%

The months with the highest relative humidity are January and February (88%).
The months with the lowest relative humidity are April and May (80%).

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Average rainfall in January
Cortland, NY

Average rainfall in January - Cortland, NY
  • Average rainfall in January: 1.42"

The wettest months (with the highest rainfall) are May and July (2.48").
The driest month (with the least rainfall) is November (1.34").

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Average rainfall days in January
Cortland, NY

Average rainfall days in January - Cortland, NY
  • Average rainfall days in January: 5.9 days

The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is February (5.7 days).

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Average snowfall in January
Cortland, NY

Average snowfall in January - Cortland, NY
  • Average snowfall in January: 4.49"

The month with the highest snowfall is February (5.75").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in January
Cortland, NY

Average snowfall days in January - Cortland, NY
  • Average snowfall days in January: 18.2 days

The month with the highest number of snowfall days is January (18.2 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
Cortland, NY

Average daylight in January / Average sunshine in January - Cortland, NY
  • Average daylight in January: 9h and 3min

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 January: 2h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 2h and 24min).

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Average sunshine days in January
Cortland, NY

Average sunshine days in January - Cortland, NY
  • Average sunshine days in January: 9.3 days

The month with the most sunshine days is September (15.8 days).
The month with the least sunshine days is February (7.7 days).

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Average UV index in January
Cortland, NY

Average UV index in January - Cortland, NY
  • Average UV index in January: 1

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, February and December (UV index 1).

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Average cloud cover in January
Cortland, NY

Average cloud cover in January - Cortland, NY
  • Average cloud cover in January: 74

The months with the most cloud cover are January and February (Cloud cover 74).
The months with the least cloud cover are July and August (Cloud cover 36).

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Average visibility in January
Cortland, NY

Average visibility in January - Cortland, NY
  • Average visibility in January: 5mi

The month with the highest visibility is April (6mi).
The month with the lowest visibility is February (4mi).

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Cortland, New York, USA

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