January weather forecast and climate
Cortland, NY

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

January, the same as December, in Cortland, New York, is another subzero cold winter month, with average temperature ranging between max 27°F (-2.8°C) and min 15.8°F (-9°C).

Temperature

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

Humidity

January and February, with an average relative humidity of 88%, are most humid months.

Rainfall

In Cortland, New York, in January, it is raining for 5.9 days, with typically 1.42" (36mm) of accumulated 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, snow falls for 18.2 days, with typically accumulated 4.49" (114mm) of snow. In Cortland, during the entire year, snow falls for 79.7 days, and aggregates up to 24.06" (611mm) of snow.

Daylight

The average length of the day in January is 9.5h.

Sunshine

In Cortland, the average sunshine is 2.7h.

UV index

January, February and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a minimal health hazard from unsafe exposure to the UV radiation for ordinary individuals.
Note: The average daily UV index of 1 in January transform into the following instructions:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the coldest month in Cortland?

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

What is the temperature in January in Cortland?

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

What are the most humid months in Cortland?

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 Cortland, during January, the rain falls for 5.9 days and regularly aggregates up to 1.42" (36mm) of precipitation.

How many days does it snow in January in Cortland?

In Cortland, New York, in January, during 18.2 snowfall days, 4.49" (114mm) of snow is typically accumulated.

How many hours of daylight does Cortland have in January?

In January, the average length of the day is 9.5h.

How long on average sun shines in January in Cortland?

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

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

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

What is the UV index reading in January in Cortland?

In Cortland, New York, the average daily maximum UV index in January is 1. A UV Index reading of 2, and below, represents a low health risk from unsafe exposure to the Sun's UV rays.

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"

The month with the highest atmospheric pressure is November (30.1").
The month with the lowest atmospheric pressure is June (29.93").

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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%

Months with the highest relative humidity are January and February (88%).
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").
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).
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: 9.5h

The month with the longest days is June (Average daylight: 15.3h).
The month with the shortest days is December (Average daylight: 9.1h).

  • Average sunshine in January: 2.7h

The month with the most sunshine is July (Average sunshine: 10.1h).
The month with the least sunshine is February (Average sunshine: 2.4h).

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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

Months with the highest UV index are May, June, July and August (UV index 5).
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

Months with the most cloud cover are January and February (Cloud cover 74).
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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