January weather forecast
Portage, IN

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Weather in January

January weather in Portage, Indiana presents the coldest conditions of the year, with the mercury often plunging to 19.8°F (-6.8°C) at night. The chilly start to the year also carries the highest humidity and significant cloud cover, resulting in fewer hours of daylight and sunshine. Indeed, this month marks the start of winter with frequent snowfall, making it a hub for winter activities. The wind becomes stronger alongside, contributing to the overall cold and icy weather. Notably, the area endures the most snowfall during January, with accumulations reaching up to 3.27" (83mm).

Temperature

January, noted for its average high-temperature of 30.2°F (-1°C) and an average low-temperature of 19.8°F (-6.8°C), is considered the coldest month.

Humidity

In Portage, the average relative humidity in January is 82%.

Rainfall

In Portage, Indiana, during January, the rain falls for 7.2 days and regularly aggregates up to 1.22" (31mm) of precipitation. In Portage, during the entire year, the rain falls for 157.4 days and collects up to 23.9" (607mm) of precipitation.

Snowfall

January through April, November and December are months with snowfall in Portage. The month with the most snowfall is January, when snow falls for 13.5 days and typically aggregates up to 3.27" (83mm) of snow.

Daylight

The average length of the day in January in Portage is 9h and 35min.
On the first day of the month, sunrise is at 7:15 am and sunset at 4:29 pm. On the last day of January, sunrise is at 7:01 am and sunset at 5:02 pm CST.

Sunshine

January has the least sunshine of the year in Portage, with an average of 3.5h 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 value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for average individuals.
Note: An average UV index of 1 in January transforms into this advice:
Most individuals face no major issues with lengthy exposure to the sun, but children, infants, and individuals with fair skin always require protection. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
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Frequently asked questions

What month is the coldest in Portage?

In Portage, Indiana, the average lowest temperatures are observed in January, with a high of 30.2°F (-1°C) and a low of 19.8°F (-6.8°C).

How cold is it in Portage in January?

In Portage, in January, the average high-temperature is 30.2°F (-1°C), and the average low-temperature is 19.8°F (-6.8°C).

What is the average humidity in January in Portage?

In January, the average relative humidity in Portage is 82%.

How much does it rain in Portage in January?

In Portage, in January, it is raining for 7.2 days, with typically 1.22" (31mm) of accumulated precipitation.

What is the snowiest month in Portage?

The month with the most snowfall in Portage is January, when snow falls for 13.5 days and typically aggregates up to 3.27" (83mm) of snow.

How much does it snow in Portage in January?

In January, in Portage, Indiana, it is snowing for 13.5 days. Throughout January, 3.27" (83mm) of snow is accumulated.

How many hours of daylight does Portage have in January?

In Portage, Indiana, the average day length in January is 9h and 35min.

When is the sunrise / sunset in January in Portage?

On the first day of January in Portage, sunrise is at 7:15 am and sunset at 4:29 pm. On the last day of the month, sunrise is at 7:01 am and sunset at 5:02 pm CST.

What is the month with the least sunshine in Portage?

January has the least sunshine of the year in Portage, Indiana, with an average of 3.5h of sunshine.

How many hours of sunshine does Portage have in January?

The average sunshine duration in January in Portage, Indiana, is 3.5h.

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

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

What is the UV index reading in January in Portage?

In January, the average daily maximum UV index in Portage, Indiana, is 1. A UV Index value of 2, and less, symbolizes a minimal hazard to health from unprotected exposure to UV radiation.
Today
Tomorrow
Long-term
YearJanuaryFMAMJJASOND
Dec
January
Feb
Average high temperature
36.1°F 2.3°C
30.2°F -1°C
33.3°F 0.7°C
Average low temperature
27.5°F -2.5°C
19.8°F -6.8°C
22.3°F -5.4°C
Average pressure
30.09" 764mmHg
30.11" 765mmHg
30.09" 764mmHg
Average wind speed
10.7mph 17.2km/h
11.4mph 18.3km/h
10.9mph 17.5km/h
Average max. wind speed
11.5mph 18.5km/h
12.1mph 19.5km/h
11.6mph 18.7km/h
Average wind speed gusts
16.8mph 27km/h
17.6mph 28.3km/h
17.3mph 27.8km/h
Average humidity
81%
82%
83%
Average rainfall
1.22" 31mm
1.22" 31mm
1.18" 30mm
Average rainfall days
9.6
7.2
7.8
Average snowfall
2.05" 52mm
3.27" 83mm
2.56" 65mm
Average snowfall days
10.4
13.5
10.4
Average daylight
9h 1min
9h 4min
10h 4min
Average sunshine
3h 5min
3h 3min
3h 5min
Average sunshine days
13.2
12.3
10.8
Average UV index
1
1
2
Average cloud cover
60%
64%
61%
Average visibility
6mi 9.7km
5mi 8km
6mi 9.7km

Average temperature in January
Portage, IN

Average temperature in January - Portage, IN
  • Average high temperature in January: 30.2°F

The warmest month (with the highest average high temperature) is July (79.2°F).
The month with the lowest average high temperature is January (30.2°F).

  • Average low temperature in January: 19.8°F

The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).

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Average pressure in January
Portage, IN

Average pressure in January - Portage, 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
Portage, IN

Average wind speed in January - Portage, 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 (6.9mph).

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Average humidity in January
Portage, IN

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

The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is October (73%).

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Average rainfall in January
Portage, IN

Average rainfall in January - Portage, IN
  • Average rainfall in January: 1.22"

The wettest month (with the highest rainfall) is June (3.19").
The driest month (with the least rainfall) is February (1.18").

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Average rainfall days in January
Portage, IN

Average rainfall days in January - Portage, IN
  • Average rainfall days in January: 7.2 days

The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is January (7.2 days).

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Average snowfall in January
Portage, IN

Average snowfall in January - Portage, IN
  • Average snowfall in January: 3.27"

The month with the highest snowfall is January (3.27").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in January
Portage, IN

Average snowfall days in January - Portage, IN
  • Average snowfall days in January: 13.5 days

The month with the highest number of snowfall days is January (13.5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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

Average daylight in January / Average sunshine in January - Portage, 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 3min

The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).

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Average sunshine days in January
Portage, IN

Average sunshine days in January - Portage, IN
  • Average sunshine days in January: 12.3 days

The month with the most sunshine days is November (15.7 days).
The months with the least sunshine days are June and August (10.4 days).

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Average UV index in January
Portage, IN

Average UV index in January - Portage, IN
  • Average UV index in January: 1

The months with the highest UV index are June, July and August (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
Portage, IN

Average cloud cover in January - Portage, IN
  • Average cloud cover in January: 64

The month with the most cloud cover is January (Cloud cover 64).
The month with the least cloud cover is August (Cloud cover 29).

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Average visibility in January
Portage, IN

Average visibility in January - Portage, IN
  • Average visibility in January: 5mi

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

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Portage, Indiana, USA

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