January weather forecast
Newton, IL

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Weather in January

January, like December, in Newton, Illinois, is an icy winter month, with temperature in the range of an average high of 36°F (2.2°C) and an average low of 23.4°F (-4.8°C).

Temperature

January tends to be the coldest month, with temperatures averaging a daily high of 36°F (2.2°C) and a low of 23.4°F (-4.8°C).

Humidity

In Newton, the average relative humidity in January is 78%.

Rainfall

In Newton, in January, it is raining for 9.3 days, with typically 2.52" (64mm) of accumulated precipitation. In Newton, Illinois, during the entire year, the rain falls for 158.3 days and collects up to 35.12" (892mm) of precipitation.

Snowfall

January through April, November and December are months with snowfall. January is the month with the most snowfall. Snow falls for 6.3 days and accumulates 2.6" (66mm) of snow.

Daylight

In January, the average length of the day in Newton is 9h and 48min.
On the first day of January, sunrise is at 7:11 am and sunset at 4:40 pm. On the last day of the month, sunrise is at 6:59 am and sunset at 5:12 pm CST.

Sunshine

With an average of 4.2h of sunshine, January has the least sunshine of the year.

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: In January, a daily maximum UV index of 2 leads to the following instructions:
The majority are not significantly affected by prolonged sun exposure. Infants, children, and those with fair skin must always have protection. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
Updated: Aug 17, 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 stands out as Newton's coldest month, with temperatures ranging between an average high of 36°F (2.2°C) and a low of 23.4°F (-4.8°C).

How cold is it in January?

Newton in January has an average high-temperature of 36°F (2.2°C) and an average low-temperature of 23.4°F (-4.8°C).

What is the average humidity in January?

In January, the average relative humidity is 78%.

How much does it rain in January?

In Newton, Illinois, in January, it is raining for 9.3 days, with typically 2.52" (64mm) of accumulated precipitation.

What is the snowiest month?

The month with the most snowfall is January, when snow falls for 6.3 days and typically aggregates up to 2.6" (66mm) of snow.

How many days does it snow in January?

In Newton, in January, snow falls for 6.3 days, with typically accumulated 2.6" (66mm) of snow.

What is the average length of the day in January?

In January, the average day length is 9h and 48min.

When are sunrise and sunset in January?

In January, on the first day of the month, sunrise is at 7:11 am and sunset at 4:40 pm. On the last day of the month, sunrise is at 6:59 am and sunset at 5:12 pm CST.

What is the month with the least sunshine?

January has the least sunshine of the year, with an average of 4.2h of sunshine.

How long on average sun shines in January?

In Newton, the average sunshine duration in January is 4.2h.

When is the lowest UV index?

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2.

What is the UV index intensity in January?

In Newton, the average daily maximum UV index in January is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unprotected exposure to 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
Newton, IL

Average temperature in January - Newton, IL
  • Average high temperature in January: 36°F

The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (36°F).

  • Average low temperature in January: 23.4°F

The month with the highest average low temperature is July (66.9°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).

Average pressure in January
Newton, IL

Average pressure in January - Newton, IL
  • Average pressure in January: 30.16"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in January
Newton, IL

Average wind speed in January - Newton, IL
  • Average wind speed in January: 10.3mph

The windiest months (with the highest average wind speed) are January and February (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).

Average humidity in January
Newton, IL

Average humidity in January - Newton, IL
  • Average humidity in January: 78%

The months with the highest relative humidity are July and August (81%).
The month with the lowest relative humidity is October (70%).

Average rainfall in January
Newton, IL

Average rainfall in January - Newton, IL
  • Average rainfall in January: 2.52"

The wettest month (with the highest rainfall) is April (5.04").
The driest month (with the least rainfall) is September (1.89").

Average rainfall days in January
Newton, IL

Average rainfall days in January - Newton, IL
  • Average rainfall days in January: 9.3 days

The month with the highest number of rainy days is May (18.7 days).
The months with the least rainy days are January and February (9.3 days).

Average snowfall in January
Newton, IL

Average snowfall in January - Newton, IL
  • Average snowfall in January: 2.6"

The month with the highest snowfall is January (2.6").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in January
Newton, IL

Average snowfall days in January - Newton, IL
  • Average snowfall days in January: 6.3 days

The month with the highest number of snowfall days is January (6.3 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
Newton, IL

Average daylight in January / Average sunshine in January - Newton, IL
  • 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 1min

The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).

Average sunshine days in January
Newton, IL

Average sunshine days in January - Newton, IL
  • Average sunshine days in January: 16.9 days

The month with the most sunshine days is October (18.2 days).
The month with the least sunshine days is May (10.1 days).

Average UV index in January
Newton, IL

Average UV index in January - Newton, IL
  • Average UV index in January: 2

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in January
Newton, IL

Average cloud cover in January - Newton, IL
  • Average cloud cover in January: 54

The month with the most cloud cover is January (Cloud cover 54).
The month with the least cloud cover is June (Cloud cover 29).

Average visibility in January
Newton, IL

Average visibility in January - Newton, IL
  • 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).

Newton, Illinois, USA

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