January weather forecast
Oswego, NY

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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

The beginning of a new year in Oswego, New York, greets residents with typical winter conditions, as cold temperatures dominate the month's weather patterns. The city experiences its second highest snowfall in January, making it a winter wonderland. This month stands out with an average high temperature of 29.8°F (-1.2°C) and a low of 21.7°F (-5.7°C), contributing to January's label as one of the coldest months. However, despite the somewhat harsh climate, January permits a reasonable daylight duration of 9.4 hours. All in all, Oswego moves into January well-prepared for the cold and snowy conditions, with a hint of sunshine piercing through.

Temperature

Oswego experiences its lowest temperatures in January, with an average peak of 29.8°F (-1.2°C) and a low of 21.7°F (-5.7°C).

Humidity

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

Rainfall

January is the month with the least rainfall. Rain falls for 6.1 days and accumulates 2.2" (56mm) of precipitation.

Snowfall

January through April, October through December are months with snowfall in Oswego. In Oswego, in January, 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: In the course of swimming, this situation is life-threatening and fraught with risk. The severe cold of the water leads to immediate hyperventilation. Wearing a specialized swimsuit is critical to limit thermal injury.

Daylight

The average length of the day in January in Oswego is 9h and 24min.
On the first day of January, sunrise is at 7:38 am and sunset at 4:40 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 5:15 pm EST.

Sunshine

January has the least sunshine of the year, with an average of 2.3h of sunshine.

UV index

The months with the lowest UV index are January and December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: A maximum daily UV index of 1 during January morphs into the following directions:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
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Frequently asked questions

What is the coldest month in Oswego?

The month of January sees the average lowest temperatures in Oswego, reaching 29.8°F (-1.2°C) at the peak and 21.7°F (-5.7°C) at the low.

How cold is January in Oswego?

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

What is the average humidity in January in Oswego?

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

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 rain in January in Oswego?

In Oswego, during January, the rain falls for 6.1 days and regularly aggregates up to 2.2" (56mm) of precipitation.

How many days does it snow in January in Oswego?

In Oswego, in January, during 11.1 snowfall days, 2.95" (75mm) of snow is typically accumulated.

What is the ocean temperature in January in Oswego?

In Oswego, the average seawater temperature in January 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.

How many hours of daylight does Oswego have in January?

The average day length in January is 9h and 24min.

When are sunrise and sunset in January in Oswego?

In January, on the first day of the month, sunrise is at 7:38 am and sunset at 4:40 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 5:15 pm EST.

What is the month with the least sunshine in Oswego?

With an average of 2.3h of sunshine, January has the least sunshine of the year.

How long on average sun shines in January in Oswego?

In Oswego, New York, the average sunshine duration in January is 2.3h.

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

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

How high is the UV index in January in Oswego?

In Oswego, the average daily maximum UV index in January is 1. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unprotected exposure to UV radiation.
Today
Tomorrow
Long-term
YearJanuaryFMAMJJASOND
Dec
January
Feb
Average high temperature
36.5°F 2.5°C
29.8°F -1.2°C
31.3°F -0.4°C
Average low temperature
29.5°F -1.4°C
21.7°F -5.7°C
22.6°F -5.2°C
Average pressure
30.05" 763mmHg
30.04" 763mmHg
30.03" 763mmHg
Average wind speed
14.7mph 23.7km/h
15mph 24.1km/h
14.5mph 23.3km/h
Average max. wind speed
15.6mph 25.1km/h
15.8mph 25.4km/h
15.3mph 24.6km/h
Average wind speed gusts
21.8mph 35.1km/h
22.6mph 36.4km/h
22.4mph 36km/h
Average humidity
80%
82%
82%
Average rainfall
2.95" 75mm
2.2" 56mm
2.28" 58mm
Average rainfall days
10.1
6.1
6
Average snowfall
3.27" 83mm
2.95" 75mm
3.94" 100mm
Average snowfall days
9.3
11.1
11.8
Average sea temperature
42.3°F 5.7°C
38.3°F 3.5°C
37.1°F 2.8°C
Average daylight
9h 0min
9h 2min
10h 3min
Average sunshine
2h 4min
2h 2min
2h 2min
Average sunshine days
8.5
10.7
8.9
Average UV index
1
1
2
Average cloud cover
75%
79%
76%
Average visibility
6mi 9.7km
5mi 8km
5mi 8km

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

The 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"Hg

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

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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%).
The 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").
The 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).
The 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: 9h and 2min

The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).

  • Average sunshine in January: 2h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 2h and 18min).

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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).
The 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).
The 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

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

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Oswego, New York, USA

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