Chesterton
Indiana, USA
Long-term weather forecast
Long-term weather forecast

January weather forecast and climate
Chesterton, IN

January, like December, is a freezing cold winter month in Chesterton, Indiana, with average temperature fluctuating between 14.4°F (-9.8°C) and 30.6°F (-0.8°C).

Temperature

January is the coldest month, with an average high-temperature of 30.6°F (-0.8°C) and an average low-temperature of 14.4°F (-9.8°C).

Rainfall

In January, the rain falls for 12 days. Throughout January, 2" (49.8mm) of precipitation is accumulated. Throughout the year, there are 130 rainfall days, and 39.4" (999.8mm) of precipitation is accumulated.

Snowfall

January through April, October through December are months with snowfall. January is the month with the most snowfall in Chesterton, with 11.8" (300mm) of accumulated snow.

Ocean temperature

In January, the average ocean temperature in Chesterton is 39.2°F (4°C). For swimming, this is considered extremely cold, dangerous, and life-threatening. Unless suitably protected with insulated waterproof clothing, hypothermia quickly occurs.

Daylight

The average length of the day in Chesterton is 9.6h.

Sunshine

In Chesterton, the average sunshine in January is 4h.

UV index

Months with the lowest UV index in Chesterton are January and December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a minimal health vulnerability from the exposure to the Sun's UV radiation for the average person.
The daily maximum UV index of 1 in January interpret into the following advice:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.

What is the coldest month in Chesterton?

January is the coldest month in Chesterton, Indiana, with an average high-temperature of 30.6°F (-0.8°C) and an average low-temperature of 14.4°F (-9.8°C).

What is the temperature in January in Chesterton?

The average high-temperature, in January, is 30.6°F (-0.8°C), while the average low-temperature is 14.4°F (-9.8°C).

How many days does it rain in January in Chesterton?

In Chesterton, Indiana, during January, the rain falls for 12 days and regularly aggregates up to 2" (49.8mm) of precipitation.

How much does it snow in Chesterton in January?

In Chesterton, in January, 11.8" (300mm) of snow is typically accumulated.

When does it snow the most in Chesterton?

The month with the most snowfall in Chesterton is January when 11.8" (300mm) of snow is typically aggregated.

How cold is the water in January in Chesterton?

In Chesterton, Indiana, the average seawater temperature in January is 39.2°F (4°C). For swimming, this is considered extremely cold, dangerous, and life-threatening. Unless suitably protected with insulated waterproof clothing, hypothermia quickly occurs.

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

In January, the average length of the day is 9.6h.

How many hours of sunshine does Chesterton have in January?

In January, the average sunshine is 4h.

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

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 Chesterton?

In January, the average daily maximum UV index in Chesterton, Indiana, is 1. A UV Index value of 2, and less, symbolizes a low health threat from unprotected exposure to the UV radiation.
Average temperature in January - Chesterton, IN
  • Average high temperature in January: 30.6°F

The warmest month (with the highest average high temperature) is July (83.5°F).
The month with the lowest average high temperature is January (30.6°F).

  • Average low temperature in January: 14.4°F

The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (14.4°F).

Average rainfall in January - Chesterton, IN
  • Average rainfall in January: 2"

The wettest month (with the highest rainfall) is June (4.2").
The driest month (with the lowest rainfall) is February (1.7").

Average rainfall days in January - Chesterton, IN
  • Average rainfall days in January: 12 days

Months with the highest number of rainy days are March, April and December (13 days).
Months with the lowest number of rainy days are August, September and October (9 days).

Average snowfall in January - Chesterton, IN
  • Average snowfall in January: 11.8"

The month with the highest snowfall is January (11.8").
Months with the lowest snowfall are May, June, July, August and September (0").

Average sea temperature in January - Chesterton, IN
  • Average sea temperature in January: 39°F

The best month for swimming (with the highest average sea temperature) is August (70°F).
Coldest months (with the lowest average sea temperature) are February, March and April (37°F).

Average daylight in January / Average sunshine in January - Chesterton, IN
  • Average daylight in January: 9.6h

The month with the longest days is June (Average daylight: 15.2h).
The month with shortest days is December (Average daylight: 9.2h).

  • Average sunshine in January: 4h

Months with most sunshine are June and July (Average sunshine: 10h).
The month with least sunshine is December (Average sunshine: 3h).

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

Months with the highest UV index are June and July (UV index 9).
Months with the lowest UV index are January and December (UV index 1).