January weather forecast
Bunker Hill, IL

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Weather in January

January, the same as December, is an icy winter month in Bunker Hill, Illinois, with temperature in the range of an average high of 36°F (2.2°C) and an average low of 23°F (-5°C).

Temperature

Bunker Hill experiences its lowest temperatures in January, with an average peak of 36°F (2.2°C) and a low of 23°F (-5°C).

Humidity

In January, the average relative humidity is 77%.

Rainfall

In Bunker Hill, during January, the rain falls for 5.3 days and regularly aggregates up to 0.71" (18mm) of precipitation. Throughout the year, there are 115.4 rainfall days, and 13.23" (336mm) of precipitation is accumulated.

Snowfall

January through March, November and December are months with snowfall. January is the month with the most snowfall. Snow falls for 5.1 days and accumulates 0.87" (22mm) of snow.

Daylight

In Bunker Hill, the average length of the day in January is 9h and 48min.
On the first day of January, sunrise is at 7:18 am and sunset at 4:47 pm. On the last day of the month, sunrise is at 7:07 am and sunset at 5:19 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 reading of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The maximum daily UV index of 2 during January translates into the following directions:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Stay sun-safe with clothing that is both closely woven and worn loosely. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
Updated: Aug 27, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What month is the coldest?

January is the month when Bunker Hill sees the average lowest temperatures, with a high of 36°F (2.2°C) and a low of 23°F (-5°C).

How cold is it in January?

The high-temperature during January is 36°F (2.2°C) and the low-temperature is 23°F (-5°C).

What is the average humidity in January?

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

How many days does it rain in January?

In Bunker Hill, in January, it is raining for 5.3 days, with typically 0.71" (18mm) of accumulated precipitation.

When does it snow the most?

January is the month with the most snowfall. Snow falls for 5.1 days and accumulates 0.87" (22mm) of snow.

How much does it snow in January?

In Bunker Hill, in January, snow falls for 5.1 days, with typically accumulated 0.87" (22mm) of snow.

How many hours of daylight does Bunker Hill have in January?

In January, the average day length is 9h and 48min.

What time are sunrise and sunset in January?

On the first day of January, sunrise is at 7:18 am and sunset at 4:47 pm. On the last day of the month, sunrise is at 7:07 am and sunset at 5:19 pm CST.

What is the month with the least sunshine?

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

How many hours of sunshine does Bunker Hill have in January?

The average sunshine duration in January is 4.4h.

When is the lowest UV index?

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?

In Bunker Hill, the average daily maximum UV index in January is 2. A UV Index value of 2, and less, symbolizes a low health threat from exposure to the Sun's 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
Bunker Hill, IL

Average temperature in January - Bunker Hill, IL
  • Average high temperature in January: 36°F

The warmest month (with the highest average high temperature) is July (84.4°F).
The month with the lowest average high temperature is January (36°F).

  • Average low temperature in January: 23°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 (23°F).

Average pressure in January
Bunker Hill, IL

Average pressure in January - Bunker Hill, IL
  • Average pressure in January: 30.15"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in January
Bunker Hill, IL

Average wind speed in January - Bunker Hill, IL
  • Average wind speed in January: 9.9mph

The windiest month (with the highest average wind speed) is January (9.9mph).
The calmest month (with the lowest average wind speed) is July (5.8mph).

Average humidity in January
Bunker Hill, IL

Average humidity in January - Bunker Hill, 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 (71%).

Average rainfall in January
Bunker Hill, IL

Average rainfall in January - Bunker Hill, IL
  • Average rainfall in January: 0.71"

The wettest month (with the highest rainfall) is August (1.77").
The driest month (with the least rainfall) is February (0.55").

Average rainfall days in January
Bunker Hill, IL

Average rainfall days in January - Bunker Hill, IL
  • Average rainfall days in January: 5.3 days

The months with the highest number of rainy days are May and July (13.8 days).
The month with the least rainy days is December (5.1 days).

Average snowfall in January
Bunker Hill, IL

Average snowfall in January - Bunker Hill, IL
  • Average snowfall in January: 0.87"

The month with the highest snowfall is January (0.87").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in January
Bunker Hill, IL

Average snowfall days in January - Bunker Hill, IL
  • Average snowfall days in January: 5.1 days

The month with the highest number of snowfall days is January (5.1 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
Bunker Hill, IL

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

The month with the longest days is June (Average daylight: 14h and 54min).
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 18min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).

Average sunshine days in January
Bunker Hill, IL

Average sunshine days in January - Bunker Hill, IL
  • Average sunshine days in January: 22.4 days

The month with the most sunshine days is December (22.5 days).
The month with the least sunshine days is June (13.8 days).

Average UV index in January
Bunker Hill, IL

Average UV index in January - Bunker Hill, 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).

Average cloud cover in January
Bunker Hill, IL

Average cloud cover in January - Bunker Hill, IL
  • Average cloud cover in January: 53

The month with the most cloud cover is January (Cloud cover 53).
The months with the least cloud cover are June and August (Cloud cover 29).

Average visibility in January
Bunker Hill, IL

Average visibility in January - Bunker Hill, 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).

Bunker Hill, Illinois, USA

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