January weather forecast
Eldorado, IL

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Weather in January

January, like December, in Eldorado, Illinois, is an icy winter month, with an average temperature varying between 26.2°F (-3.2°C) and 39.7°F (4.3°C).

Temperature

In Eldorado, Illinois, the lowest average temperatures are observed in January, with a high of 39.7°F (4.3°C) and a low of 26.2°F (-3.2°C).

Humidity

In January, the average relative humidity is 77%.

Rainfall

In Eldorado, in January, it is raining for 9.8 days, with typically 2.68" (68mm) of accumulated precipitation. In Eldorado, during the entire year, the rain falls for 158.6 days and collects up to 36.02" (915mm) of precipitation.

Snowfall

Months with snowfall are January through April, October through December. January is the month with the most snowfall. Snow falls for 5.3 days and accumulates 1.73" (44mm) of snow.

Daylight

The average length of the day in January in Eldorado is 9h and 54min.
On the first day of the month, sunrise is at 7:09 am and sunset at 4:45 pm. On the last day of January, sunrise is at 6:58 am and sunset at 5:15 pm CST.

Sunshine

The month with the least sunshine is January, with an average of 4.6h of sunshine.

UV index

January, February 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 vulnerability from unsafe exposure to UV radiation for the ordinary person.
Note: A maximum high UV index of 2 in January translates into the following recommendations:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.
Updated: Jul 11, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest time of year?

Eldorado's coldest weather arrives in January, when temperatures average a high of 39.7°F (4.3°C) and a low of 26.2°F (-3.2°C).

Is January cold in Eldorado?

An average high-temperature, in January, in Eldorado, is 39.7°F (4.3°C) and the average low-temperature is 26.2°F (-3.2°C).

What is the average humidity in January?

In January, the average relative humidity is 77%.

How much does it rain in January?

In Eldorado, in January, during 9.8 rainfall days, 2.68" (68mm) of precipitation is typically accumulated.

What is the snowiest month?

The month with the most snowfall in Eldorado, Illinois, is January, when snow falls for 5.3 days and typically aggregates up to 1.73" (44mm) of snow.

How much does it snow in January?

In January, it is snowing for 5.3 days. Throughout January, 1.73" (44mm) of snow is accumulated.

What is the average length of the day in January?

In Eldorado, Illinois, the average day length in January is 9h and 54min.

What time are sunrise and sunset in January?

In January, on the first day of the month, sunrise is at 7:09 am and sunset at 4:45 pm. On the last day of the month, sunrise is at 6:58 am and sunset at 5:15 pm CST.

What is the month with the least sunshine?

The month with the least sunshine is January, with an average of 4.6h of sunshine.

How long on average sun shines in January?

In Eldorado, the average sunshine duration in January is 4.6h.

What are the months with the lowest UV index?

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

What is the UV index intensity in January?

In January, the average daily maximum UV index is 2. A UV Index value of 2, and less, symbolizes a low health risk 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
Eldorado, IL

Average temperature in January - Eldorado, IL
  • Average high temperature in January: 39.7°F

The warmest month (with the highest average high temperature) is July (87.3°F).
The month with the lowest average high temperature is January (39.7°F).

  • Average low temperature in January: 26.2°F

The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (26.2°F).

Average pressure in January
Eldorado, IL

Average pressure in January - Eldorado, 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 (29.94"Hg).

Average wind speed in January
Eldorado, IL

Average wind speed in January - Eldorado, IL
  • Average wind speed in January: 9.4mph

The windiest months (with the highest average wind speed) are January and February (9.4mph).
The calmest months (with the lowest average wind speed) are July and August (5.8mph).

Average humidity in January
Eldorado, IL

Average humidity in January - Eldorado, IL
  • Average humidity in January: 77%

The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is October (70%).

Average rainfall in January
Eldorado, IL

Average rainfall in January - Eldorado, IL
  • Average rainfall in January: 2.68"

The wettest month (with the highest rainfall) is April (4.8").
The driest month (with the least rainfall) is September (1.57").

Average rainfall days in January
Eldorado, IL

Average rainfall days in January - Eldorado, IL
  • Average rainfall days in January: 9.8 days

The month with the highest number of rainy days is May (18.5 days).
The month with the least rainy days is November (9.7 days).

Average snowfall in January
Eldorado, IL

Average snowfall in January - Eldorado, IL
  • Average snowfall in January: 1.73"

The month with the highest snowfall is January (1.73").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in January
Eldorado, IL

Average snowfall days in January - Eldorado, IL
  • Average snowfall days in January: 5.3 days

The month with the highest number of snowfall days is January (5.3 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
Eldorado, IL

Average daylight in January / Average sunshine in January - Eldorado, IL
  • Average daylight in January: 9h and 5min

The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in January: 4h and 4min

The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).

Average sunshine days in January
Eldorado, IL

Average sunshine days in January - Eldorado, IL
  • Average sunshine days in January: 16.2 days

The month with the most sunshine days is October (19.5 days).
The month with the least sunshine days is May (9.9 days).

Average UV index in January
Eldorado, IL

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

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

Average cloud cover in January
Eldorado, IL

Average cloud cover in January - Eldorado, IL
  • Average cloud cover in January: 51

The months with the most cloud cover are January and February (Cloud cover 51).
The months with the least cloud cover are June and September (Cloud cover 28).

Average visibility in January
Eldorado, IL

Average visibility in January - Eldorado, 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).

Eldorado, Illinois, USA

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