January weather forecast
London Mills, IL

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Weather in January

January, the same as December, in London Mills, Illinois, is another subzero cold winter month, with an average temperature fluctuating between 17.8°F (-7.9°C) and 29.8°F (-1.2°C).

Temperature

In London Mills, the lowest temperatures are generally noted in January, averaging a high of 29.8°F (-1.2°C) and a low of 17.8°F (-7.9°C).

Humidity

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

Rainfall

The months with the least rainfall in London Mills are January and December Rain falls for 4.7 days and accumulates 0.59" (15mm) of rain.

Snowfall

Months with snowfall in London Mills are January through April, October through December. January is the month with the most snowfall. Snow falls for 10.3 days and accumulates 1.26" (32mm) of snow.

Daylight

In London Mills, the average length of the day in January is 9h and 39min.
On the first day of January in London Mills, Illinois, sunrise is at 7:24 am and sunset at 4:44 pm. On the last day of the month, sunrise is at 7:12 am and sunset at 5:16 pm CST.

Sunshine

The month with the least sunshine in London Mills, Illinois, is January, with an average of 4.1h of sunshine.

UV index

January, February, November 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 minimal health vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: In January, the maximum UV index of 2 suggests these recommendations:
Though extended exposure to the sun typically does not concern most people, it is crucial to always shield children, infants, and those with sensitive skin. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
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Frequently asked questions

What part of the year is the coldest in London Mills?

Temperature records in London Mills, Illinois, mark January as the coldest month, with highs averaging 29.8°F (-1.2°C) and lows at 17.8°F (-7.9°C).

How cold is January in London Mills?

In January, in London Mills, the average high-temperature is 29.8°F (-1.2°C), and the average low-temperature is 17.8°F (-7.9°C).

What is the average humidity in January in London Mills?

The average relative humidity in January in London Mills is 82%.

What is the driest month in London Mills?

The months with the least rainfall in London Mills, Illinois, are January and December Rain falls for 4.7 days and accumulates 0.59" (15mm) of rain.

How many days does it rain in January in London Mills?

In London Mills, Illinois, in January, it is raining for 4.7 days, with typically 0.59" (15mm) of accumulated precipitation.

When does it snow the most in London Mills?

January is the month with the most snowfall in London Mills. Snow falls for 10.3 days and accumulates 1.26" (32mm) of snow.

How many days does it snow in January in London Mills?

In London Mills, in January, during 10.3 snowfall days, 1.26" (32mm) of snow is typically accumulated.

What is the average length of the day in January in London Mills?

The average day length in January in London Mills is 9h and 39min.

When are sunrise and sunset in January in London Mills?

In January, on the first day of the month, sunrise is at 7:24 am and sunset at 4:44 pm. On the last day of the month, in London Mills, Illinois, sunrise is at 7:12 am and sunset at 5:16 pm CST.

What is the month with the least sunshine in London Mills?

January has the least sunshine of the year in London Mills, with an average of 4.1h of sunshine.

How long on average sun shines in January in London Mills?

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

What are the months with the lowest UV index in London Mills?

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

What is the UV index intensity in January in London Mills?

In January, the average daily maximum UV index in London Mills, Illinois, is 2. A UV Index of 2, and less, symbolizes a minimal hazard to health from unprotected exposure to 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
34.9°F 1.6°C
Average low temperature
25°F -3.9°C
17.8°F -7.9°C
21.7°F -5.7°C
Average pressure
30.11" 765mmHg
30.14" 766mmHg
30.12" 765mmHg
Average wind speed
9.9mph 15.9km/h
10.6mph 17.1km/h
10.5mph 16.9km/h
Average max. wind speed
10.6mph 17.1km/h
11.2mph 18km/h
11.2mph 18km/h
Average wind speed gusts
16.1mph 25.9km/h
16.9mph 27.2km/h
16.6mph 26.7km/h
Average humidity
81%
82%
81%
Average rainfall
0.59" 15mm
0.59" 15mm
0.67" 17mm
Average rainfall days
6.8
4.7
4.4
Average snowfall
0.75" 19mm
1.26" 32mm
1.22" 31mm
Average snowfall days
7.1
10.3
7.4
Average daylight
9h 2min
9h 4min
10h 4min
Average sunshine
4h 3min
4h 1min
4h 2min
Average sunshine days
18.1
17.3
16.8
Average UV index
2
2
2
Average cloud cover
53%
57%
54%
Average visibility
6mi 9.7km
6mi 9.7km
6mi 9.7km

Average temperature in January
London Mills, IL

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

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (29.8°F).

  • Average low temperature in January: 17.8°F

The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (17.8°F).

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Average pressure in January
London Mills, IL

Average pressure in January - London Mills, IL
  • Average pressure in January: 30.14"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

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Average wind speed in January
London Mills, IL

Average wind speed in January - London Mills, IL
  • Average wind speed in January: 10.6mph

The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).

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Average humidity in January
London Mills, IL

Average humidity in January - London Mills, IL
  • Average humidity in January: 82%

The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (72%).

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Average rainfall in January
London Mills, IL

Average rainfall in January - London Mills, IL
  • Average rainfall in January: 0.59"

The wettest month (with the highest rainfall) is May (2.2").
The driest months (with the least rainfall) are January and December (0.59").

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Average rainfall days in January
London Mills, IL

Average rainfall days in January - London Mills, IL
  • Average rainfall days in January: 4.7 days

The month with the highest number of rainy days is May (16.3 days).
The month with the least rainy days is February (4.4 days).

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Average snowfall in January
London Mills, IL

Average snowfall in January - London Mills, IL
  • Average snowfall in January: 1.26"

The month with the highest snowfall is January (1.26").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in January
London Mills, IL

Average snowfall days in January - London Mills, IL
  • Average snowfall days in January: 10.3 days

The month with the highest number of snowfall days is January (10.3 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
London Mills, IL

Average daylight in January / Average sunshine in January - London Mills, 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 18min).

  • Average sunshine in January: 4h and 1min

The months with the most sunshine are June and July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).

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Average sunshine days in January
London Mills, IL

Average sunshine days in January - London Mills, IL
  • Average sunshine days in January: 17.3 days

The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is July (11.2 days).

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Average UV index in January
London Mills, IL

Average UV index in January - London Mills, 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).

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Average cloud cover in January
London Mills, IL

Average cloud cover in January - London Mills, IL
  • Average cloud cover in January: 57

The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is September (Cloud cover 29).

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Average visibility in January
London Mills, IL

Average visibility in January - London Mills, IL
  • Average visibility in January: 6mi

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

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London Mills, Illinois, USA

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