January weather forecast
Westport, IN

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Weather in January

January, the same as December, is a wintry winter month in Westport, Indiana, with an average temperature fluctuating between 22.8°F (-5.1°C) and 34.9°F (1.6°C).

Temperature

January stands out as Westport's coldest month, with an average high-temperature of 34.9°F (1.6°C) and a low-temperature of 22.8°F (-5.1°C).

Humidity

In January, the average relative humidity is 81%.

Rainfall

In Westport, in January, during 8 rainfall days, 1.3" (33mm) of precipitation is typically accumulated. Throughout the year, there are 137.6 rainfall days, and 17.99" (457mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through April, October through December. In Westport, during January, snow falls for 7.1 days and regularly aggregates up to 1.06" (27mm) of snow. In Westport, during the entire year, snow falls for 29.3 days and aggregates up to 5.35" (136mm) of snow.

Daylight

In Westport, the average length of the day in January is 9h and 47min.
On the first day of January, sunrise is at 8:01 am and sunset at 5:29 pm. On the last day of the month, sunrise is at 7:49 am and sunset at 6:01 pm EST.

Sunshine

January has the least sunshine of the year, with an average of 4h of sunshine.

UV index

The average daily maximum UV index in January is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for the average person.
Note: A maximum daily UV index of 2 during January morphs into the following directions:
Sun exposure does not present considerable issues for many, yet infants, fair-skinned people, and children necessitate constant protection. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Enhance your sun protection with tightly woven, yet airy clothing. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
Updated: Aug 16, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What part of the year is the coldest?

January is the coldest month of the year, registering average temperatures as high as 34.9°F (1.6°C) and as low as 22.8°F (-5.1°C).

How cold is January?

In Westport, 34.9°F (1.6°C) is the average high-temperature and 22.8°F (-5.1°C) is the average low-temperature during January.

What is the average humidity in January?

The average relative humidity in January is 81%.

How many days does it rain in January?

In January, the rain falls for 8 days. Throughout January, 1.3" (33mm) of precipitation is accumulated.

How many days does it snow in January?

In Westport, Indiana, in January, during 7.1 snowfall days, 1.06" (27mm) of snow is typically accumulated.

What is the average length of the day in January?

In January, the average day length in Westport is 9h and 47min.

When is the sunrise / sunset in January?

In January, on the first day of the month, sunrise is at 8:01 am and sunset at 5:29 pm. On the last day of the month, sunrise is at 7:49 am and sunset at 6:01 pm EST.

What is the month with the least sunshine?

The month with the least sunshine is January, with an average of 4h of sunshine.

How long on average sun shines in January?

In January, the average sunshine duration is 4h.

What is the UV index reading in January?

In Westport, the average daily maximum UV index in January is 2. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
Westport, IN

Average temperature in January - Westport, IN
  • Average high temperature in January: 34.9°F

The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (34.9°F).

  • Average low temperature in January: 22.8°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 (22.8°F).

Average pressure in January
Westport, IN

Average pressure in January - Westport, IN
  • Average pressure in January: 30.14"Hg

The months with the highest atmospheric pressure are January and November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in January
Westport, IN

Average wind speed in January - Westport, IN
  • Average wind speed in January: 9.1mph

The windiest months (with the highest average wind speed) are January and February (9.1mph).
The calmest months (with the lowest average wind speed) are July and August (5.4mph).

Average humidity in January
Westport, IN

Average humidity in January - Westport, IN
  • Average humidity in January: 81%

The month with the highest relative humidity is December (82%).
The month with the lowest relative humidity is October (74%).

Average rainfall in January
Westport, IN

Average rainfall in January - Westport, IN
  • Average rainfall in January: 1.3"

The wettest month (with the highest rainfall) is May (2.01").
The driest month (with the least rainfall) is September (0.98").

Average rainfall days in January
Westport, IN

Average rainfall days in January - Westport, IN
  • Average rainfall days in January: 8 days

The month with the highest number of rainy days is May (15.4 days).
The month with the least rainy days is February (7.9 days).

Average snowfall in January
Westport, IN

Average snowfall in January - Westport, IN
  • Average snowfall in January: 1.06"

The month with the highest snowfall is March (1.46").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in January
Westport, IN

Average snowfall days in January - Westport, IN
  • Average snowfall days in January: 7.1 days

The month with the highest number of snowfall days is February (7.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

Average daylight in January / Average sunshine in January - Westport, IN
  • Average daylight in January: 9h and 5min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in January: 4h and 0min

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).

Average sunshine days in January
Westport, IN

Average sunshine days in January - Westport, IN
  • Average sunshine days in January: 17 days

The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is July (12.4 days).

Average UV index in January
Westport, IN

Average UV index in January - Westport, 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).

Average cloud cover in January
Westport, IN

Average cloud cover in January - Westport, IN
  • Average cloud cover in January: 59

The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 30).

Average visibility in January
Westport, IN

Average visibility in January - Westport, IN
  • Average visibility in January: 6mi

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

Westport, Indiana, USA

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