January weather forecast
Gillespie, IL

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Weather in January

January, like December, in Gillespie, Illinois, is another cold winter month, with an average temperature varying between 35.6°F (2°C) and 22.6°F (-5.2°C).

Temperature

Gillespie's January weather, with an average high temperature of 35.6°F (2°C) and an average low temperature of 22.6°F (-5.2°C), tends to be the coldest of the year.

Humidity

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

Rainfall

In Gillespie, during January, the rain falls for 5.8 days and regularly aggregates up to 1.02" (26mm) of precipitation. Throughout the year, in Gillespie, there are 121.4 rainfall days, and 14.72" (374mm) of precipitation is accumulated.

Snowfall

January through March, November and December are months with snowfall in Gillespie. In January, it is snowing for 6.3 days. Throughout January, 0.63" (16mm) of snow is accumulated. In Gillespie, during the entire year, snow falls for 19.8 days and aggregates up to 2.91" (74mm) of snow.

Daylight

The average length of the day in January is 9h and 47min.
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 7:06 am and sunset at 5:18 pm CST.

Sunshine

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

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 low threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The UV index of 2 during January leads to these advisories:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. When the Sun is at its strongest around midday, find shade and limit exposure. Boost your sun resistance with garments that are densely woven yet spacious. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
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Frequently asked questions

What are the coldest months in Gillespie?

Gillespie's temperature records reveal January as the coldest month, marked by average highs of 35.6°F (2°C) and lows of 22.6°F (-5.2°C).

How cold is it in Gillespie in January?

The high-temperature in Gillespie during January is 35.6°F (2°C) and the low-temperature is 22.6°F (-5.2°C).

What is the average humidity in January in Gillespie?

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

How much does it rain in Gillespie in January?

In January, in Gillespie, the rain falls for 5.8 days. Throughout January, 1.02" (26mm) of precipitation is accumulated.

How many days does it snow in January in Gillespie?

In Gillespie, in January, during 6.3 snowfall days, 0.63" (16mm) of snow is typically accumulated.

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

The average day length in January in Gillespie, Illinois, is 9h and 47min.

What time are sunrise and sunset in January in Gillespie?

In January, on the first day of the month, sunrise is at 7:18 am and sunset at 4:47 pm. On the last day of the month, in Gillespie, sunrise is at 7:06 am and sunset at 5:18 pm CST.

What is the month with the least sunshine in Gillespie?

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

How long on average sun shines in January in Gillespie?

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

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

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2.

What is the UV index reading in January in Gillespie?

In Gillespie, the average daily maximum UV index in January is 2. A UV Index reading of 2, and below, represents a low health risk from 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
Gillespie, IL

Average temperature in January - Gillespie, IL
  • Average high temperature in January: 35.6°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 (35.6°F).

  • Average low temperature in January: 22.6°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 (22.6°F).

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Average pressure in January
Gillespie, IL

Average pressure in January - Gillespie, 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 (29.92"Hg).

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Average wind speed in January
Gillespie, IL

Average wind speed in January - Gillespie, IL
  • Average wind speed in January: 10mph

The windiest month (with the highest average wind speed) is January (10mph).
The calmest month (with the lowest average wind speed) is July (5.8mph).

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Average humidity in January
Gillespie, IL

Average humidity in January - Gillespie, 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%).

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Average rainfall in January
Gillespie, IL

Average rainfall in January - Gillespie, IL
  • Average rainfall in January: 1.02"

The wettest month (with the highest rainfall) is June (1.89").
The driest month (with the least rainfall) is February (0.67").

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Average rainfall days in January
Gillespie, IL

Average rainfall days in January - Gillespie, IL
  • Average rainfall days in January: 5.8 days

The month with the highest number of rainy days is July (14 days).
The month with the least rainy days is January (5.8 days).

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Average snowfall in January
Gillespie, IL

Average snowfall in January - Gillespie, IL
  • Average snowfall in January: 0.63"

The month with the highest snowfall is December (0.98").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in January
Gillespie, IL

Average snowfall days in January - Gillespie, IL
  • Average snowfall days in January: 6.3 days

The month with the highest number of snowfall days is January (6.3 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
Gillespie, IL

Average daylight in January / Average sunshine in January - Gillespie, 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 months with the most sunshine are June and July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).

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Average sunshine days in January
Gillespie, IL

Average sunshine days in January - Gillespie, IL
  • Average sunshine days in January: 20.9 days

The month with the most sunshine days is January (20.9 days).
The month with the least sunshine days is July (12.5 days).

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Average UV index in January
Gillespie, IL

Average UV index in January - Gillespie, 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
Gillespie, IL

Average cloud cover in January - Gillespie, 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, July, August and September (Cloud cover 29).

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Average visibility in January
Gillespie, IL

Average visibility in January - Gillespie, 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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Gillespie, Illinois, USA

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