January weather forecast and climate
Oswego, NY

The colorful sun rising over a calm marina in Oswego, New York, with a view of numerous boats and yachts docked along several piers
The colorful sun rising over a calm marina in Oswego, New York, with a view of numerous boats and yachts docked along several piers

Weather in January

January, like December, is another subzero cold winter month in Oswego, New York, with average temperature varying between 21.7°F (-5.7°C) and 29.8°F (-1.2°C).

Temperature

With an average high-temperature of 29.8°F (-1.2°C) and an average low-temperature of 21.7°F (-5.7°C), January is the coldest month.

Humidity

In January, the average relative humidity is 82%.

Rainfall

The month with the least rainfall is January when the rain falls for 6.1 days and typically collects 2.2" (56mm) of precipitation.

Snowfall

Months with snowfall are January through April, October through December. In Oswego, snow falls for 11.1 days, with typically accumulated 2.95" (75mm) of snow. Throughout the year, in Oswego, there are 46.3 snowfall days, and 14.8" (376mm) of snow is accumulated.

Ocean temperature

In Oswego, in January, the average water temperature is 38.3°F (3.5°C).
Note: For swimming, this is considered very dangerous and immediately life-threatening. Total loss of breathing control instantly occurs, and clear thinking becomes almost impossible. A specialized swimsuit is obligatory to minimize thermal loss.

Daylight

In January, the average length of the day in Oswego is 9.4h.

Sunshine

The month with the least sunshine in Oswego is January, with an average of 2.3h of sunshine.

UV index

January and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from the exposure to the Sun's UV rays for average individuals.
Note: The average daily UV index of 1 in January transform into the following instructions:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. 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 Oswego?

The coldest month is January, with an average high-temperature of 29.8°F (-1.2°C) and an average low-temperature of 21.7°F (-5.7°C).

What is the temperature in January in Oswego?

The average high-temperature, in January, in Oswego, is 29.8°F (-1.2°C), while the average low-temperature is 21.7°F (-5.7°C).

What is the average humidity in January in Oswego?

The average relative humidity in January in Oswego, New York, is 82%.

How many days does it rain in January in Oswego?

In Oswego, in January, during 6.1 rainfall days, 2.2" (56mm) of precipitation is typically accumulated.

What is the driest month in Oswego?

The month with the least rainfall in Oswego is January when the rain falls for 6.1 days and typically collects 2.2" (56mm) of precipitation.

How many days does it snow in January in Oswego?

In Oswego, during January, snow falls for 11.1 days and regularly aggregates up to 2.95" (75mm) of snow.

What is the ocean temperature in January in Oswego?

In Oswego, New York, in January, the average water temperature is 38.3°F (3.5°C). For swimming, this is considered very dangerous and immediately life-threatening. Total loss of breathing control instantly occurs, and clear thinking becomes almost impossible. A specialized swimsuit is obligatory to minimize thermal loss.

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

In Oswego, New York, the average length of the day in January is 9.4h.

What is the month with the least sunshine in Oswego?

The month with the least sunshine in Oswego is January, with an average of 2.3h of sunshine.

How many hours of sunshine does Oswego have in January?

The average sunshine in January in Oswego is 2.3h.

What is the month with the lowest UV index in Oswego?

January and December, with an average maximum UV index of 1, are months with the lowest UV index.

How high is the UV index in January in Oswego?

The average daily maximum UV index in January in Oswego, New York, is 1. A UV Index of 2, and less, symbolizes a low health threat from the exposure to the Sun's UV rays.

Average temperature in January
Oswego, NY

Average temperature in January - Oswego, NY
  • Average high temperature in January: 29.8°F

The warmest month (with the highest average high temperature) is August (74.1°F).
The month with the lowest average high temperature is January (29.8°F).

  • Average low temperature in January: 21.7°F

Months with the highest average low temperature are July and August (65.8°F).
The coldest month (with the lowest average low temperature) is January (21.7°F).

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Average pressure in January
Oswego, NY

Average pressure in January - Oswego, NY
  • Average pressure in January: 30.04"

The month with the highest atmospheric pressure is November (30.08").
The month with the lowest atmospheric pressure is June (29.92").

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Average wind speed in January
Oswego, NY

Average wind speed in January - Oswego, NY
  • Average wind speed in January: 15mph

The windiest month (with the highest average wind speed) is January (15mph).
The calmest month (with the lowest average wind speed) is July (8.5mph).

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Average humidity in January
Oswego, NY

Average humidity in January - Oswego, NY
  • Average humidity in January: 82%

The month with the highest relative humidity is June (83%).
Months with the lowest relative humidity are September and November (75%).

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Average rainfall in January
Oswego, NY

Average rainfall in January - Oswego, NY
  • Average rainfall in January: 2.2"

The wettest month (with the highest rainfall) is May (4.37").
The driest month (with the least rainfall) is January (2.2").

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Average rainfall days in January
Oswego, NY

Average rainfall days in January - Oswego, NY
  • Average rainfall days in January: 6.1 days

The month with the highest number of rainy days is August (18.6 days).
The month with the least rainy days is February (6 days).

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Average snowfall in January
Oswego, NY

Average snowfall in January - Oswego, NY
  • Average snowfall in January: 2.95"

The month with the highest snowfall is February (3.94").
Months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in January
Oswego, NY

Average snowfall days in January - Oswego, NY
  • Average snowfall days in January: 11.1 days

The month with the highest number of snowfall days is February (11.8 days).
Months with the least snowfall days are June, July, August and September (0 days).

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Average sea temperature in January
Oswego, NY

Average sea temperature in January - Oswego, NY
  • Average sea temperature in January: 38.3°F

The best month for swimming (with the highest average sea temperature) is August (73.2°F).
The coldest month (with the lowest average sea temperature) is March (35.4°F).

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Average daylight in January /
Average sunshine in January
Oswego, NY

Average daylight in January / Average sunshine in January - Oswego, NY
  • Average daylight in January: 9.4h

The month with the longest days is June (Average daylight: 15.4h).
The month with the shortest days is December (Average daylight: 9h).

  • Average sunshine in January: 2.3h

The month with the most sunshine is July (Average sunshine: 10.5h).
The month with the least sunshine is January (Average sunshine: 2.3h).

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Average sunshine days in January
Oswego, NY

Average sunshine days in January - Oswego, NY
  • Average sunshine days in January: 10.7 days

The month with the most sunshine days is September (13.7 days).
The month with the least sunshine days is December (8.5 days).

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Average UV index in January
Oswego, NY

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

The month with the highest UV index is July (UV index 6).
Months with the lowest UV index are January and December (UV index 1).

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Average cloud cover in January
Oswego, NY

Average cloud cover in January - Oswego, NY
  • Average cloud cover in January: 79

The month with the most cloud cover is January (Cloud cover 79).
Months with the least cloud cover are July and August (Cloud cover 29).

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Average visibility in January
Oswego, NY

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

Months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January and February (5mi).

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