January weather forecast
Oreana, IL

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Weather in January

January, like December, in Oreana, Illinois, is an icy winter month, with an average temperature fluctuating between 32.9°F (0.5°C) and 21.2°F (-6°C).

Temperature

Oreana reaches its lowest average temperatures in January, measuring 32.9°F (0.5°C) at the peak and 21.2°F (-6°C) at the lowest.

Humidity

In Oreana, the average relative humidity in January is 79%.

Rainfall

In Oreana, in January, it is raining for 6.3 days, with typically 1.06" (27mm) of accumulated precipitation. In Oreana, during the entire year, the rain falls for 130.2 days and collects up to 16.34" (415mm) of precipitation.

Snowfall

Months with snowfall are January through April, November and December. January is the month with the most snowfall. Snow falls for 7.2 days and accumulates 1.85" (47mm) of snow.

Daylight

In January, the average length of the day is 9h and 43min.
On the first day of January, sunrise is at 7:17 am and sunset at 4:40 pm. On the last day of the month, sunrise is at 7:04 am and sunset at 5:12 pm CST.

Sunshine

The month with the least sunshine is January, with an average of 4.1h of sunshine.

UV index

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In January, the UV index of 2 transforms into the following advice:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.
Updated: Jul 20, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What time of the year is the coldest?

January, with an average high of 32.9°F (0.5°C) and a low of 21.2°F (-6°C), signifies the coldest month of the year in Oreana.

How cold is it in January?

The average high-temperature and low-temperature during January are 32.9°F (0.5°C) and 21.2°F (-6°C) respectively.

What is the average humidity in January?

The average relative humidity in January is 79%.

How many days does it rain in January?

In January, the rain falls for 6.3 days. Throughout January, 1.06" (27mm) of precipitation is accumulated.

When does it snow the most?

January is the month with the most snowfall in Oreana. Snow falls for 7.2 days and accumulates 1.85" (47mm) of snow.

How many days does it snow in January?

In Oreana, during January, snow falls for 7.2 days and regularly aggregates up to 1.85" (47mm) of snow.

What is the average length of the day in January?

The average day length in January is 9h and 43min.

When is the sunrise / sunset in January?

In January, on the first day of the month, sunrise is at 7:17 am and sunset at 4:40 pm. On the last day of the month, sunrise is at 7:04 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 4.1h of sunshine.

How long on average sun shines in January in Oreana?

In Oreana, the average sunshine duration in January is 4.1h.

When is the lowest UV index?

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

How high is the UV index in January?

In January, the average daily maximum UV index is 2. A UV Index value of 2, and less, symbolizes a minimal hazard to health 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
Oreana, IL

Average temperature in January - Oreana, IL
  • Average high temperature in January: 32.9°F

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (32.9°F).

  • Average low temperature in January: 21.2°F

The month with the highest average low temperature is July (65.7°F).
The coldest month (with the lowest average low temperature) is January (21.2°F).

Average pressure in January
Oreana, IL

Average pressure in January - Oreana, IL
  • Average pressure in January: 30.15"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in January
Oreana, IL

Average wind speed in January - Oreana, IL
  • Average wind speed in January: 10.7mph

The windiest month (with the highest average wind speed) is January (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (6.3mph).

Average humidity in January
Oreana, IL

Average humidity in January - Oreana, IL
  • Average humidity in January: 79%

The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (70%).

Average rainfall in January
Oreana, IL

Average rainfall in January - Oreana, IL
  • Average rainfall in January: 1.06"

The wettest month (with the highest rainfall) is May (2.01").
The driest months (with the least rainfall) are February and December (0.87").

Average rainfall days in January
Oreana, IL

Average rainfall days in January - Oreana, IL
  • Average rainfall days in January: 6.3 days

The month with the highest number of rainy days is May (17 days).
The month with the least rainy days is February (5.8 days).

Average snowfall in January
Oreana, IL

Average snowfall in January - Oreana, IL
  • Average snowfall in January: 1.85"

The month with the highest snowfall is January (1.85").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in January
Oreana, IL

Average snowfall days in January - Oreana, IL
  • Average snowfall days in January: 7.2 days

The month with the highest number of snowfall days is January (7.2 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in January /
Average sunshine in January
Oreana, IL

Average daylight in January / Average sunshine in January - Oreana, IL
  • Average daylight in January: 9h and 4min

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • 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 6min).

Average sunshine days in January
Oreana, IL

Average sunshine days in January - Oreana, IL
  • Average sunshine days in January: 19.5 days

The month with the most sunshine days is October (19.8 days).
The month with the least sunshine days is May (11.5 days).

Average UV index in January
Oreana, IL

Average UV index in January - Oreana, 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
Oreana, IL

Average cloud cover in January - Oreana, IL
  • Average cloud cover in January: 56

The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is September (Cloud cover 29).

Average visibility in January
Oreana, IL

Average visibility in January - Oreana, IL
  • Average visibility in January: 6mi

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

Oreana, Illinois, USA

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