January weather forecast
Thebes, IL

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Weather in January

January, like December, in Thebes, Illinois, is an icy winter month, with an average temperature ranging between min 27.9°F (-2.3°C) and max 41°F (5°C).

Temperature

Thebes experiences its lowest average temperatures in January, reaching a peak of 41°F (5°C) and a minimum of 27.9°F (-2.3°C).

Humidity

In Thebes, the average relative humidity in January is 75%.

Rainfall

In Thebes, during January, the rain falls for 9.8 days and regularly aggregates up to 2.32" (59mm) of precipitation. In Thebes, during the entire year, the rain falls for 158.6 days and collects up to 35.59" (904mm) of precipitation.

Snowfall

Months with snowfall are January through April, October through December. In Thebes, during January, snow falls for 3.7 days and regularly aggregates up to 0.79" (20mm) of snow. Throughout the year, there are 11.2 snowfall days, and 4.92" (125mm) of snow is accumulated.

Daylight

In January, the average length of the day is 9h and 57min.
On the first day of the month, sunrise is at 7:11 am and sunset at 4:50 pm. On the last day of January, sunrise is at 7:01 am and sunset at 5:20 pm CST.

Sunshine

The average sunshine in January is 4.9h.

UV index

January, February and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: In January, the average maximum UV index of 2 translates into the following recommendations:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.
Updated: Aug 21, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest time of year?

Thebes records the coldest temperatures in January, averaging a high of 41°F (5°C) and a low of 27.9°F (-2.3°C).

How cold is January?

The high-temperature during January is 41°F (5°C) and the low-temperature is 27.9°F (-2.3°C).

What is the average humidity in January?

The average relative humidity in January is 75%.

How much does it rain in January?

In Thebes, Illinois, during January, the rain falls for 9.8 days and regularly aggregates up to 2.32" (59mm) of precipitation.

How many days does it snow in January?

In Thebes, during January, snow falls for 3.7 days and regularly aggregates up to 0.79" (20mm) of snow.

How many hours of daylight does Thebes have in January?

In January, the average day length is 9h and 57min.

When is the sunrise / sunset in January?

In January, on the first day of the month, sunrise is at 7:11 am and sunset at 4:50 pm. On the last day of the month, sunrise is at 7:01 am and sunset at 5:20 pm CST.

How many hours of sunshine does Thebes have in January?

In January, the average sunshine duration is 4.9h.

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

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

What is the UV index reading in January?

In Thebes, 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
Thebes, IL

Average temperature in January - Thebes, IL
  • Average high temperature in January: 41°F

The warmest month (with the highest average high temperature) is July (88.3°F).
The month with the lowest average high temperature is January (41°F).

  • Average low temperature in January: 27.9°F

The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (27.9°F).

Average pressure in January
Thebes, IL

Average pressure in January - Thebes, 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
Thebes, IL

Average wind speed in January - Thebes, IL
  • Average wind speed in January: 9.1mph

The windiest months (with the highest average wind speed) are January and February (9.1mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).

Average humidity in January
Thebes, IL

Average humidity in January - Thebes, IL
  • Average humidity in January: 75%

The months with the highest relative humidity are March and May (78%).
The month with the lowest relative humidity is October (69%).

Average rainfall in January
Thebes, IL

Average rainfall in January - Thebes, IL
  • Average rainfall in January: 2.32"

The wettest month (with the highest rainfall) is April (4.33").
The driest month (with the least rainfall) is September (1.5").

Average rainfall days in January
Thebes, IL

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

The month with the highest number of rainy days is July (17 days).
The month with the least rainy days is January (9.8 days).

Average snowfall in January
Thebes, IL

Average snowfall in January - Thebes, IL
  • Average snowfall in January: 0.79"

The month with the highest snowfall is February (2.17").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in January
Thebes, IL

Average snowfall days in January - Thebes, IL
  • Average snowfall days in January: 3.7 days

The month with the highest number of snowfall days is January (3.7 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
Thebes, IL

Average daylight in January / Average sunshine in January - Thebes, 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 42min).

  • Average sunshine in January: 4h and 5min

The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).

Average sunshine days in January
Thebes, IL

Average sunshine days in January - Thebes, IL
  • Average sunshine days in January: 17.8 days

The month with the most sunshine days is October (18.6 days).
The month with the least sunshine days is July (11.9 days).

Average UV index in January
Thebes, IL

Average UV index in January - Thebes, 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
Thebes, IL

Average cloud cover in January - Thebes, IL
  • Average cloud cover in January: 47

The month with the most cloud cover is February (Cloud cover 48).
The months with the least cloud cover are June, August and September (Cloud cover 27).

Average visibility in January
Thebes, IL

Average visibility in January - Thebes, 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).

Thebes, Illinois, USA

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