January weather forecast
Pecatonica, IL

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Weather in January

January, like December, is another subzero cold winter month in Pecatonica, Illinois, with an average temperature ranging between max 26.2°F (-3.2°C) and min 14°F (-10°C).

Temperature

January, having an average high-temperature of 26.2°F (-3.2°C) and an average low-temperature of 14°F (-10°C), is the coldest month.

Humidity

With an average relative humidity of 86%, January is the most humid month.

Rainfall

The months with the least rainfall are January and February Rain falls for 3.2 days and accumulates 0.35" (9mm) of rain.

Snowfall

Months with snowfall are January through April, October through December. The month with the most snowfall is January, when snow falls for 8.1 days and typically aggregates up to 1.42" (36mm) of snow.

Daylight

In Pecatonica, the average length of the day in January is 9h and 31min.
On the first day of the month, sunrise is at 7:26 am and sunset at 4:35 pm. On the last day of January, sunrise is at 7:11 am and sunset at 5:09 pm CST.

Sunshine

The month with the least sunshine in Pecatonica is January, with an average of 3.7h 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 estimate of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: A maximum UV index of 1 in January translates into the following recommendations:
Prolonged sun exposure generally does not trouble most people. However, it is vital to ensure protection for babies, children, and individuals with sensitive skin. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
Updated: Jul 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest time of year?

January is the coldest month, with an average high-temperature of 26.2°F (-3.2°C) and an average low-temperature of 14°F (-10°C).

How cold is January?

The average high-temperature, in January, in Pecatonica, is 26.2°F (-3.2°C), while the average low-temperature is 14°F (-10°C).

What is the most humid month?

The most humid month is January, with an average relative humidity of 86%.

What is the average humidity in January?

The average relative humidity in January is 86%.

What is the driest month?

The months with the least rainfall are January and February Rain falls for 3.2 days and accumulates 0.35" (9mm) of rain.

How much does it rain in January?

In Pecatonica, during January, the rain falls for 3.2 days and regularly aggregates up to 0.35" (9mm) of precipitation.

When does it snow the most?

The month with the most snowfall is January, when snow falls for 8.1 days and typically aggregates up to 1.42" (36mm) of snow.

How much does it snow in January?

In Pecatonica, during January, snow falls for 8.1 days and regularly aggregates up to 1.42" (36mm) of snow.

How many hours of daylight does Pecatonica have in January?

The average day length in January is 9h and 31min.

When is the sunrise / sunset in January?

In January, on the first day of the month, sunrise is at 7:26 am and sunset at 4:35 pm. On the last day of the month, sunrise is at 7:11 am and sunset at 5:09 pm CST.

What is the month with the least sunshine?

January has the least sunshine of the year, with an average of 3.7h of sunshine.

How many hours of sunshine does Pecatonica have in January?

In Pecatonica, the average sunshine duration in January is 3.7h.

What is the month with the lowest UV index?

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

How high is the UV index in January?

In Pecatonica, the average daily maximum UV index in January is 1. A UV Index value of 2, and less, symbolizes a low health threat from unsafe exposure to Sun's UV rays.
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
Pecatonica, IL

Average temperature in January - Pecatonica, IL
  • Average high temperature in January: 26.2°F

The warmest month (with the highest average high temperature) is July (79.9°F).
The month with the lowest average high temperature is January (26.2°F).

  • Average low temperature in January: 14°F

The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (14°F).

Average pressure in January
Pecatonica, IL

Average pressure in January - Pecatonica, IL
  • Average pressure in January: 30.12"Hg

The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in January
Pecatonica, IL

Average wind speed in January - Pecatonica, IL
  • Average wind speed in January: 9.8mph

The windiest month (with the highest average wind speed) is April (10.2mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).

Average humidity in January
Pecatonica, IL

Average humidity in January - Pecatonica, IL
  • Average humidity in January: 86%

The month with the highest relative humidity is January (86%).
The months with the lowest relative humidity are April and October (75%).

Average rainfall in January
Pecatonica, IL

Average rainfall in January - Pecatonica, IL
  • Average rainfall in January: 0.35"

The wettest month (with the highest rainfall) is May (1.18").
The driest months (with the least rainfall) are January and February (0.35").

Average rainfall days in January
Pecatonica, IL

Average rainfall days in January - Pecatonica, IL
  • Average rainfall days in January: 3.2 days

The month with the highest number of rainy days is May (13.8 days).
The month with the least rainy days is January (3.2 days).

Average snowfall in January
Pecatonica, IL

Average snowfall in January - Pecatonica, IL
  • Average snowfall in January: 1.42"

The month with the highest snowfall is January (1.42").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in January
Pecatonica, IL

Average snowfall days in January - Pecatonica, IL
  • Average snowfall days in January: 8.1 days

The month with the highest number of snowfall days is January (8.1 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
Pecatonica, IL

Average daylight in January / Average sunshine in January - Pecatonica, IL
  • Average daylight in January: 9h and 3min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in January: 3h and 4min

The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

Average sunshine days in January
Pecatonica, IL

Average sunshine days in January - Pecatonica, IL
  • Average sunshine days in January: 21.9 days

The month with the most sunshine days is December (22.6 days).
The month with the least sunshine days is June (12.8 days).

Average UV index in January
Pecatonica, IL

Average UV index in January - Pecatonica, IL
  • Average UV index in January: 1

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

Average cloud cover in January
Pecatonica, IL

Average cloud cover in January - Pecatonica, IL
  • Average cloud cover in January: 62

The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is September (Cloud cover 33).

Average visibility in January
Pecatonica, IL

Average visibility in January - Pecatonica, IL
  • Average visibility in January: 5mi

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

Pecatonica, Illinois, USA

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