January weather forecast
Batavia, IL

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Weather in January

January, like December, is a freezing cold winter month in Batavia, Illinois, with an average temperature varying between 27.9°F (-2.3°C) and 16°F (-8.9°C).

Temperature

The coldest temperatures occur during January, when averages reach a peak of 27.9°F (-2.3°C) and a low of 16°F (-8.9°C).

Humidity

January, February and July, with an average relative humidity of 83%, are the most humid months.

Rainfall

In January, in Batavia, the rain falls for 4.3 days. Throughout January, 0.59" (15mm) of precipitation is accumulated. Throughout the year, there are 120.4 rainfall days, and 12.32" (313mm) of precipitation is accumulated.

Snowfall

January through April, October through December are months with snowfall. January is the month with the most snowfall. Snow falls for 9.1 days and accumulates 1.69" (43mm) of snow.

Daylight

The average length of the day in January in Batavia is 9h and 33min.
On the first day of January, sunrise is at 7:20 am and sunset at 4:32 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 5:06 pm CST.

Sunshine

With an average of 3.8h of sunshine, January has the least sunshine of the year in Batavia.

UV index

The months with the lowest UV index in Batavia are January and December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: In January, a daily maximum UV index of 1 leads to the following instructions:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
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Frequently asked questions

What time of the year is the coldest in Batavia?

Batavia's temperature records reveal January as the coldest month, marked by average highs of 27.9°F (-2.3°C) and lows of 16°F (-8.9°C).

How cold is it in Batavia in January?

The high-temperature, in January, in Batavia, is 27.9°F (-2.3°C), while the low-temperature averages to 16°F (-8.9°C).

What is the most humid month in Batavia?

The months with the highest humidity in Batavia, Illinois, are January, February and July, with an average relative humidity of 83%.

What is the average humidity in January in Batavia?

In January, the average relative humidity in Batavia, Illinois, is 83%.

How many days does it rain in January in Batavia?

In Batavia, in January, it is raining for 4.3 days, with typically 0.59" (15mm) of accumulated precipitation.

What is the snowiest month in Batavia?

The month with the most snowfall in Batavia, Illinois, is January, when snow falls for 9.1 days and typically aggregates up to 1.69" (43mm) of snow.

How many days does it snow in January in Batavia?

In Batavia, Illinois, in January, snow falls for 9.1 days, with typically accumulated 1.69" (43mm) of snow.

What is the average length of the day in January in Batavia?

In Batavia, the average day length in January is 9h and 33min.

When is the sunrise / sunset in January in Batavia?

In January, on the first day of the month, sunrise is at 7:20 am and sunset at 4:32 pm. On the last day of the month, in Batavia, Illinois, sunrise is at 7:06 am and sunset at 5:06 pm CST.

What is the month with the least sunshine in Batavia?

With an average of 3.8h of sunshine, January has the least sunshine of the year.

How many hours of sunshine does Batavia have in January?

In January, the average sunshine duration in Batavia, Illinois, is 3.8h.

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

The months with the lowest UV index are January and December, with an average maximum UV index of 1.

What is the UV index intensity in January in Batavia?

In January, the average daily maximum UV index is 1. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to UV radiation.
Today
Tomorrow
Long-term
YearJanuaryFMAMJJASOND
Dec
January
Feb
Average high temperature
34.2°F 1.2°C
27.9°F -2.3°C
32°F 0°C
Average low temperature
23.9°F -4.5°C
16°F -8.9°C
19.2°F -7.1°C
Average pressure
30.1" 765mmHg
30.11" 765mmHg
30.1" 765mmHg
Average wind speed
9.1mph 14.6km/h
9.8mph 15.8km/h
9.8mph 15.8km/h
Average max. wind speed
9.8mph 15.8km/h
10.4mph 16.7km/h
10.4mph 16.7km/h
Average wind speed gusts
14.1mph 22.7km/h
15mph 24.1km/h
15.1mph 24.3km/h
Average humidity
82%
83%
83%
Average rainfall
0.59" 15mm
0.59" 15mm
0.51" 13mm
Average rainfall days
6
4.3
5
Average snowfall
0.55" 14mm
1.69" 43mm
1.14" 29mm
Average snowfall days
6.4
9.1
8.5
Average daylight
9h 1min
9h 3min
10h 4min
Average sunshine
4h 1min
3h 5min
4h 0min
Average sunshine days
20.5
19.6
17.2
Average UV index
1
1
2
Average cloud cover
58%
61%
58%
Average visibility
6mi 9.7km
6mi 9.7km
6mi 9.7km

Average temperature in January
Batavia, IL

Average temperature in January - Batavia, IL
  • Average high temperature in January: 27.9°F

The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (27.9°F).

  • Average low temperature in January: 16°F

The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (16°F).

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Average pressure in January
Batavia, IL

Average pressure in January - Batavia, 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
Batavia, IL

Average wind speed in January - Batavia, IL
  • Average wind speed in January: 9.8mph

The windiest months (with the highest average wind speed) are January and February (9.8mph).
The calmest month (with the lowest average wind speed) is August (6mph).

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Average humidity in January
Batavia, IL

Average humidity in January - Batavia, IL
  • Average humidity in January: 83%

The months with the highest relative humidity are January, February and July (83%).
The month with the lowest relative humidity is October (74%).

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Average rainfall in January
Batavia, IL

Average rainfall in January - Batavia, IL
  • Average rainfall in January: 0.59"

The wettest month (with the highest rainfall) is May (1.97").
The driest month (with the least rainfall) is February (0.51").

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Average rainfall days in January
Batavia, IL

Average rainfall days in January - Batavia, IL
  • Average rainfall days in January: 4.3 days

The month with the highest number of rainy days is June (15.5 days).
The month with the least rainy days is January (4.3 days).

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Average snowfall in January
Batavia, IL

Average snowfall in January - Batavia, IL
  • Average snowfall in January: 1.69"

The month with the highest snowfall is January (1.69").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in January
Batavia, IL

Average snowfall days in January - Batavia, IL
  • Average snowfall days in January: 9.1 days

The month with the highest number of snowfall days is January (9.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in January / Average sunshine in January - Batavia, IL
  • Average daylight in January: 9h and 3min

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

  • Average sunshine in January: 3h and 5min

The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).

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Average sunshine days in January
Batavia, IL

Average sunshine days in January - Batavia, IL
  • Average sunshine days in January: 19.6 days

The month with the most sunshine days is December (20.5 days).
The month with the least sunshine days is June (11.4 days).

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Average UV index in January
Batavia, IL

Average UV index in January - Batavia, IL
  • Average UV index in January: 1

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).

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Average cloud cover in January
Batavia, IL

Average cloud cover in January - Batavia, IL
  • Average cloud cover in January: 61

The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is September (Cloud cover 32).

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Average visibility in January
Batavia, IL

Average visibility in January - Batavia, 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).

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Batavia, Illinois, USA

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