January weather forecast
Dolton, IL

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Weather in January

January, the same as December, in Dolton, Illinois, is a freezing cold winter month, with an average temperature fluctuating between 29.8°F (-1.2°C) and 19.6°F (-6.9°C).

Temperature

In Dolton, Illinois, the month of January registers the lowest temperatures, averaging 29.8°F (-1.2°C) at the peak and 19.6°F (-6.9°C) at the lowest.

Humidity

January and February, with an average relative humidity of 82%, are the most humid months.

Rainfall

In Dolton, Illinois, in January, during 4.6 rainfall days, 0.51" (13mm) of precipitation is typically accumulated. Throughout the year, in Dolton, Illinois, there are 110.3 rainfall days, and 10.31" (262mm) of precipitation is accumulated.

Snowfall

January through April, October through December are months with snowfall in Dolton, Illinois. January is the month with the most snowfall. Snow falls for 9.3 days and accumulates 1.1" (28mm) of snow.

Daylight

In Dolton, the average length of the day in January is 9h and 34min.
On the first day of January in Dolton, sunrise is at 7:17 am and sunset at 4:30 pm. On the last day of the month, sunrise is at 7:03 am and sunset at 5:04 pm CST.

Sunshine

With an average of 3.6h of sunshine, January has the least sunshine of the year in Dolton, Illinois.

UV index

The average daily maximum UV index in January in Dolton, Illinois, is 2. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for the average person.
Note: In January, the maximum UV index of 2 suggests this advice:
Extended sunlight exposure does not pose significant problems for most people, except for children, infants, and people with fair skin who always need shielding. The solar radiation around mid-day is intense; avoid the Sun and stay safe. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
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Frequently asked questions

What are the coldest months in Dolton?

January, on average, is the coldest month, registering a high temperature of 29.8°F (-1.2°C) and a low of 19.6°F (-6.9°C).

How cold is January in Dolton?

In Dolton, 29.8°F (-1.2°C) is the average high-temperature and 19.6°F (-6.9°C) is the average low-temperature during January.

What is the most humid month in Dolton?

January and February, with an average relative humidity of 82%, are most humid months in Dolton, Illinois.

What is the average humidity in January in Dolton?

In Dolton, the average relative humidity in January is 82%.

How many days does it rain in January in Dolton?

In Dolton, in January, during 4.6 rainfall days, 0.51" (13mm) of precipitation is typically accumulated.

What is the snowiest month in Dolton?

The month with the most snowfall in Dolton, Illinois, is January, when snow falls for 9.3 days and typically aggregates up to 1.1" (28mm) of snow.

How much does it snow in Dolton in January?

In January, in Dolton, it is snowing for 9.3 days. Throughout January, 1.1" (28mm) of snow is accumulated.

How many hours of daylight does Dolton have in January?

In Dolton, Illinois, the average day length in January is 9h and 34min.

What time are sunrise and sunset in January in Dolton?

In January, on the first day of the month, sunrise is at 7:17 am and sunset at 4:30 pm. On the last day of the month, in Dolton, sunrise is at 7:03 am and sunset at 5:04 pm CST.

What is the month with the least sunshine in Dolton?

The month with the least sunshine in Dolton is January, with an average of 3.6h of sunshine.

How long on average sun shines in January in Dolton?

In January, the average sunshine duration in Dolton is 3.6h.

What is the UV index reading in January in Dolton?

In Dolton, the average daily maximum UV index in January is 2. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation.
Today
Tomorrow
Long-term
YearJanuaryFMAMJJASOND
Dec
January
Feb
Average high temperature
35.8°F 2.1°C
29.8°F -1.2°C
32.9°F 0.5°C
Average low temperature
26.8°F -2.9°C
19.6°F -6.9°C
22.5°F -5.3°C
Average pressure
30.09" 764mmHg
30.11" 765mmHg
30.09" 764mmHg
Average wind speed
10.3mph 16.6km/h
11mph 17.7km/h
10.6mph 17.1km/h
Average max. wind speed
10.9mph 17.5km/h
11.6mph 18.7km/h
11.1mph 17.9km/h
Average wind speed gusts
15.6mph 25.1km/h
16.5mph 26.6km/h
16.3mph 26.2km/h
Average humidity
80%
82%
82%
Average rainfall
0.47" 12mm
0.51" 13mm
0.47" 12mm
Average rainfall days
4.2
4.6
4.1
Average snowfall
0.51" 13mm
1.1" 28mm
0.94" 24mm
Average snowfall days
7.5
9.3
8.5
Average daylight
9h 1min
9h 4min
10h 4min
Average sunshine
4h 0min
3h 4min
3h 5min
Average sunshine days
19.8
18.3
17.1
Average UV index
1
2
2
Average cloud cover
59%
62%
59%
Average visibility
6mi 9.7km
6mi 9.7km
6mi 9.7km

Average temperature in January
Dolton, IL

Average temperature in January - Dolton, IL
  • Average high temperature in January: 29.8°F

The warmest month (with the highest average high temperature) is July (80.1°F).
The month with the lowest average high temperature is January (29.8°F).

  • Average low temperature in January: 19.6°F

The month with the highest average low temperature is July (66.9°F).
The coldest month (with the lowest average low temperature) is January (19.6°F).

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Average pressure in January
Dolton, IL

Average pressure in January - Dolton, IL
  • Average pressure in January: 30.11"Hg

The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed in January
Dolton, IL

Average wind speed in January - Dolton, IL
  • Average wind speed in January: 11mph

The windiest month (with the highest average wind speed) is January (11mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).

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Average humidity in January
Dolton, IL

Average humidity in January - Dolton, IL
  • Average humidity in January: 82%

The months with the highest relative humidity are January and February (82%).
The month with the lowest relative humidity is October (72%).

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Average rainfall in January
Dolton, IL

Average rainfall in January - Dolton, IL
  • Average rainfall in January: 0.51"

The wettest months (with the highest rainfall) are May and June (1.38").
The driest months (with the least rainfall) are February and December (0.47").

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Average rainfall days in January
Dolton, IL

Average rainfall days in January - Dolton, IL
  • Average rainfall days in January: 4.6 days

The month with the highest number of rainy days is July (14 days).
The month with the least rainy days is February (4.1 days).

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Average snowfall in January
Dolton, IL

Average snowfall in January - Dolton, IL
  • Average snowfall in January: 1.1"

The month with the highest snowfall is January (1.1").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in January
Dolton, IL

Average snowfall days in January - Dolton, IL
  • Average snowfall days in January: 9.3 days

The month with the highest number of snowfall days is January (9.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

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

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

  • Average sunshine in January: 3h and 4min

The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).

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Average sunshine days in January
Dolton, IL

Average sunshine days in January - Dolton, IL
  • Average sunshine days in January: 18.3 days

The month with the most sunshine days is December (19.8 days).
The month with the least sunshine days is June (13.1 days).

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Average UV index in January
Dolton, IL

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

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

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Average cloud cover in January
Dolton, IL

Average cloud cover in January - Dolton, 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 August (Cloud cover 28).

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Average visibility in January
Dolton, IL

Average visibility in January - Dolton, 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).

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Dolton, Illinois, USA

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