January weather forecast
Gary, IN

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A large, historic building used as an administration block in Gary, Indiana
A large, historic building used as an administration block in Gary, Indiana

Weather in January

The year in Gary, Indiana, kicks off with January, a month known for chilly temperatures and snowfall. Weather conditions continue to display winter characteristics from the previous month. The temperatures are typically on the lower side, with the most significant snowfall registered, 3.11" (79mm). January also delivers a high number of snowfall days, making it the quintessential winter month. The weather gradually transitions towards the end of the month, introducing the early harbingers of spring.

Temperature

January is the coldest month of the year, registering average temperatures as high as 30°F (-1.1°C) and as low as 19.8°F (-6.8°C).

Humidity

The months with the highest humidity in Gary are January and February, with an average relative humidity of 82%.

Rainfall

In Gary, Indiana, in January, during 6.3 rainfall days, 1.14" (29mm) of precipitation is typically accumulated. Throughout the year, in Gary, there are 153.8 rainfall days, and 25.51" (648mm) of precipitation is accumulated.

Snowfall

January through April, October through December are months with snowfall in Gary, Indiana. January is the month with the most snowfall in Gary. Snow falls for 13.4 days and accumulates 3.11" (79mm) of snow.

Daylight

In Gary, the average length of the day in January is 9h and 34min.
On the first day of January, sunrise is at 7:16 am and sunset at 4:29 pm. On the last day of the month, sunrise is at 7:02 am and sunset at 5:03 pm CST.

Sunshine

With an average of 3.6h of sunshine, January has the least sunshine of the year.

UV index

In January, the average daily maximum UV index is 2. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for the average person.
Note: In January, an average UV index of 2 transforms into the following instructions:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.
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Frequently asked questions

What is the coldest month in Gary?

The coldest period in Gary tends to be January, when average temperatures fluctuate between a high of 30°F (-1.1°C) and a low of 19.8°F (-6.8°C).

How cold is January in Gary?

The high-temperature, in January, in Gary, records 30°F (-1.1°C), while the low-temperature is 19.8°F (-6.8°C).

What is the most humid month in Gary?

January and February, with an average relative humidity of 82%, are most humid months in Gary, Indiana.

What is the average humidity in January in Gary?

The average relative humidity in January in Gary, Indiana, is 82%.

How many days does it rain in January in Gary?

In Gary, in January, during 6.3 rainfall days, 1.14" (29mm) of precipitation is typically accumulated.

When does it snow the most in Gary?

The month with the most snowfall is January, when snow falls for 13.4 days and typically aggregates up to 3.11" (79mm) of snow.

How many days does it snow in January in Gary?

In January, in Gary, Indiana, it is snowing for 13.4 days. Throughout January, 3.11" (79mm) of snow is accumulated.

How many hours of daylight does Gary have in January?

In Gary, the average day length in January is 9h and 34min.

What time are sunrise and sunset in January in Gary?

On the first day of January in Gary, sunrise is at 7:16 am and sunset at 4:29 pm. On the last day of the month, sunrise is at 7:02 am and sunset at 5:03 pm CST.

What is the month with the least sunshine in Gary?

The month with the least sunshine in Gary, Indiana, is January, with an average of 3.6h of sunshine.

How many hours of sunshine does Gary have in January?

In Gary, Indiana, the average sunshine duration in January is 3.6h.

What is the UV index reading in January in Gary?

In January, the average daily maximum UV index in Gary, Indiana, is 2. A UV Index reading of 2, and below, represents a low health threat from exposure to Sun's UV rays.
Today
Tomorrow
Long-term
YearJanuaryFMAMJJASOND
Dec
January
Feb
Average high temperature
36.1°F 2.3°C
30°F -1.1°C
33.1°F 0.6°C
Average low temperature
27.3°F -2.6°C
19.8°F -6.8°C
22.5°F -5.3°C
Average pressure
30.09" 764mmHg
30.11" 765mmHg
30.09" 764mmHg
Average wind speed
10.6mph 17.1km/h
11.4mph 18.3km/h
10.8mph 17.4km/h
Average max. wind speed
11.4mph 18.3km/h
12mph 19.3km/h
11.4mph 18.3km/h
Average wind speed gusts
16.4mph 26.4km/h
17.2mph 27.7km/h
17mph 27.4km/h
Average humidity
80%
82%
82%
Average rainfall
1.1" 28mm
1.14" 29mm
1.22" 31mm
Average rainfall days
8.7
6.3
5.9
Average snowfall
1.93" 49mm
3.11" 79mm
2.99" 76mm
Average snowfall days
9.6
13.4
10.7
Average daylight
9h 1min
9h 4min
10h 4min
Average sunshine
4h 0min
3h 4min
3h 5min
Average sunshine days
15.1
13.3
12.3
Average UV index
1
2
2
Average cloud cover
59%
63%
60%
Average visibility
6mi 9.7km
6mi 9.7km
6mi 9.7km

Average temperature in January
Gary, IN

Average temperature in January - Gary, IN
  • Average high temperature in January: 30°F

The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (30°F).

  • Average low temperature in January: 19.8°F

The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).

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Average pressure in January
Gary, IN

Average pressure in January - Gary, IN
  • Average pressure in January: 30.11"Hg

The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in January
Gary, IN

Average wind speed in January - Gary, IN
  • Average wind speed in January: 11.4mph

The windiest month (with the highest average wind speed) is January (11.4mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).

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Average humidity in January
Gary, IN

Average humidity in January - Gary, IN
  • Average humidity in January: 82%

The months with the highest relative humidity are January and February (82%).
The month with the lowest relative humidity is October (73%).

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Average rainfall in January
Gary, IN

Average rainfall in January - Gary, IN
  • Average rainfall in January: 1.14"

The wettest month (with the highest rainfall) is June (3.66").
The driest month (with the least rainfall) is December (1.1").

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Average rainfall days in January
Gary, IN

Average rainfall days in January - Gary, IN
  • Average rainfall days in January: 6.3 days

The month with the highest number of rainy days is July (18.3 days).
The month with the least rainy days is February (5.9 days).

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Average snowfall in January
Gary, IN

Average snowfall in January - Gary, IN
  • Average snowfall in January: 3.11"

The month with the highest snowfall is January (3.11").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in January
Gary, IN

Average snowfall days in January - Gary, IN
  • Average snowfall days in January: 13.4 days

The month with the highest number of snowfall days is January (13.4 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight in January /
Average sunshine in January
Gary, IN

Average daylight in January / Average sunshine in January - Gary, IN
  • 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 12min).

  • Average sunshine in January: 3h and 4min

The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).

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Average sunshine days in January
Gary, IN

Average sunshine days in January - Gary, IN
  • Average sunshine days in January: 13.3 days

The month with the most sunshine days is November (16.5 days).
The month with the least sunshine days is July (9.8 days).

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Average UV index in January
Gary, IN

Average UV index in January - Gary, IN
  • Average UV index in January: 2

The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).

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Average cloud cover in January
Gary, IN

Average cloud cover in January - Gary, IN
  • Average cloud cover in January: 63

The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 28).

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Average visibility in January
Gary, IN

Average visibility in January - Gary, IN
  • 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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Gary, Indiana, USA

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