January weather forecast
Dundas, IL

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Weather in January

January, the same as December, is a wintry winter month in Dundas, Illinois, with an average temperature fluctuating between 24.3°F (-4.3°C) and 36.7°F (2.6°C).

Temperature

In Dundas, the month of January registers the lowest temperatures, averaging 36.7°F (2.6°C) at the peak and 24.3°F (-4.3°C) at the lowest.

Humidity

In Dundas, the average relative humidity in January is 77%.

Rainfall

In January, the rain falls for 8.8 days. Throughout January, 1.93" (49mm) of precipitation is accumulated. In Dundas, during the entire year, the rain falls for 152.3 days and collects up to 27.99" (711mm) of precipitation.

Snowfall

January through April, November and December are months with snowfall. The month with the most snowfall is January, when snow falls for 5.9 days and typically aggregates up to 1.54" (39mm) of snow.

Daylight

In Dundas, the average length of the day in January is 9h and 49min.
On the first day of the month, sunrise is at 7:10 am and sunset at 4:40 pm. On the last day of January, sunrise is at 6:59 am and sunset at 5:12 pm CST.

Sunshine

The month with the least sunshine is January, with an average of 4.4h 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 hazard from exposure to the Sun's UV radiation for average individuals.
Note: The UV index of 2 during January translates into the following guidance:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
Updated: Aug 20, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What month is the coldest?

January brings the lowest temperatures, with an average high of 36.7°F (2.6°C) and an average low of 24.3°F (-4.3°C).

How cold is January?

Dundas in January has an average high-temperature of 36.7°F (2.6°C) and an average low-temperature of 24.3°F (-4.3°C).

What is the average humidity in January?

In Dundas, the average relative humidity in January is 77%.

How much does it rain in January?

In January, the rain falls for 8.8 days. Throughout January, 1.93" (49mm) of precipitation is accumulated.

When does it snow the most?

The month with the most snowfall is January, when snow falls for 5.9 days and typically aggregates up to 1.54" (39mm) of snow.

How much does it snow in January?

In January, in Dundas, it is snowing for 5.9 days. Throughout January, 1.54" (39mm) of snow is accumulated.

How many hours of daylight does Dundas have in January?

In January, the average day length is 9h and 49min.

When are sunrise and sunset in January?

On the first day of January, sunrise is at 7:10 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?

With an average of 4.4h of sunshine, January has the least sunshine of the year.

How long on average sun shines in January?

In Dundas, the average sunshine duration in January is 4.4h.

What are the months with the lowest UV index in Dundas?

January, February, November 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?

The average daily maximum UV index in January in Dundas, Illinois, is 2. A UV Index estimate of 2, and below, represents a low health risk 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
Dundas, IL

Average temperature in January - Dundas, IL
  • Average high temperature in January: 36.7°F

The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is January (36.7°F).

  • Average low temperature in January: 24.3°F

The month with the highest average low temperature is July (67.5°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).

Average pressure in January
Dundas, IL

Average pressure in January - Dundas, 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
Dundas, IL

Average wind speed in January - Dundas, IL
  • Average wind speed in January: 10.2mph

The windiest months (with the highest average wind speed) are January and February (10.2mph).
The calmest month (with the lowest average wind speed) is July (5.9mph).

Average humidity in January
Dundas, IL

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

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

Average rainfall in January
Dundas, IL

Average rainfall in January - Dundas, IL
  • Average rainfall in January: 1.93"

The wettest month (with the highest rainfall) is April (4.09").
The driest month (with the least rainfall) is September (1.54").

Average rainfall days in January
Dundas, IL

Average rainfall days in January - Dundas, IL
  • Average rainfall days in January: 8.8 days

The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is January (8.8 days).

Average snowfall in January
Dundas, IL

Average snowfall in January - Dundas, IL
  • Average snowfall in January: 1.54"

The month with the highest snowfall is January (1.54").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in January
Dundas, IL

Average snowfall days in January - Dundas, IL
  • Average snowfall days in January: 5.9 days

The month with the highest number of snowfall days is January (5.9 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
Dundas, IL

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

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in January: 4h and 2min

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 24min).

Average sunshine days in January
Dundas, IL

Average sunshine days in January - Dundas, IL
  • Average sunshine days in January: 17.2 days

The month with the most sunshine days is October (18.8 days).
The month with the least sunshine days is July (11.2 days).

Average UV index in January
Dundas, IL

Average UV index in January - Dundas, 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, November and December (UV index 2).

Average cloud cover in January
Dundas, IL

Average cloud cover in January - Dundas, IL
  • Average cloud cover in January: 52

The month with the most cloud cover is January (Cloud cover 52).
The months with the least cloud cover are June and August (Cloud cover 28).

Average visibility in January
Dundas, IL

Average visibility in January - Dundas, 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).

Dundas, Illinois, USA

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