January weather forecast
Rose Hill, IL

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Weather in January

January, like December, in Rose Hill, Illinois, is a wintry winter month, with an average temperature fluctuating between 23.4°F (-4.8°C) and 36°F (2.2°C).

Temperature

Temperature records mark January as the coldest month, with highs averaging 36°F (2.2°C) and lows at 23.4°F (-4.8°C).

Humidity

The average relative humidity in January in Rose Hill is 78%.

Rainfall

In Rose Hill, Illinois, in January, during 9.3 rainfall days, 2.52" (64mm) of precipitation is typically accumulated. In Rose Hill, during the entire year, the rain falls for 158.3 days and collects up to 35.12" (892mm) of precipitation.

Snowfall

January through April, November and December are months with snowfall. January is the month with the most snowfall. Snow falls for 6.3 days and accumulates 2.6" (66mm) of snow.

Daylight

In Rose Hill, the average length of the day in January is 9h and 47min.
On the first day of the month, sunrise is at 7:11 am and sunset at 4:40 pm. On the last day of January, in Rose Hill, sunrise is at 7:00 am and sunset at 5:11 pm CST.

Sunshine

With an average of 4.2h of sunshine, January has the least sunshine of the year.

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 estimate of 2, and below, represents a low health risk from unsafe exposure to UV radiation for the ordinary person.
Note: The daily maximum UV index of 2 in January interprets into the following advice:
Sun exposure does not present considerable issues for many, yet infants, fair-skinned people, and children necessitate constant protection. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.
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Frequently asked questions

What part of the year is the coldest in Rose Hill?

January stands out as Rose Hill's coldest month, with an average high-temperature of 36°F (2.2°C) and a low-temperature of 23.4°F (-4.8°C).

How cold is January in Rose Hill?

In Rose Hill, 36°F (2.2°C) is the average high-temperature and 23.4°F (-4.8°C) is the average low-temperature during January.

What is the average humidity in January in Rose Hill?

In January, the average relative humidity in Rose Hill is 78%.

How much does it rain in Rose Hill in January?

In January, the rain falls for 9.3 days. Throughout January, 2.52" (64mm) of precipitation is accumulated.

When does it snow the most in Rose Hill?

The month with the most snowfall in Rose Hill is January, when snow falls for 6.3 days and typically aggregates up to 2.6" (66mm) of snow.

How many days does it snow in January in Rose Hill?

In Rose Hill, in January, snow falls for 6.3 days, with typically accumulated 2.6" (66mm) of snow.

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

In January, the average day length is 9h and 47min.

When are sunrise and sunset in January in Rose Hill?

In January, on the first day of the month, sunrise is at 7:11 am and sunset at 4:40 pm. On the last day of the month, in Rose Hill, Illinois, sunrise is at 7:00 am and sunset at 5:11 pm CST.

What is the month with the least sunshine in Rose Hill?

With an average of 4.2h of sunshine, January has the least sunshine of the year in Rose Hill, Illinois.

How long on average sun shines in January in Rose Hill?

The average sunshine duration in January in Rose Hill is 4.2h.

When is the lowest UV index in Rose Hill?

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 intensity in January in Rose Hill?

In January, the average daily maximum UV index is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability 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
Rose Hill, IL

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

The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (36°F).

  • Average low temperature in January: 23.4°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 (23.4°F).

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Average pressure in January
Rose Hill, IL

Average pressure in January - Rose Hill, 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 (29.93"Hg).

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Average wind speed in January
Rose Hill, IL

Average wind speed in January - Rose Hill, IL
  • Average wind speed in January: 10.3mph

The windiest months (with the highest average wind speed) are January and February (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).

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Average humidity in January
Rose Hill, IL

Average humidity in January - Rose Hill, IL
  • Average humidity in January: 78%

The months with the highest relative humidity are July and August (81%).
The month with the lowest relative humidity is October (70%).

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Average rainfall in January
Rose Hill, IL

Average rainfall in January - Rose Hill, IL
  • Average rainfall in January: 2.52"

The wettest month (with the highest rainfall) is April (5.04").
The driest month (with the least rainfall) is September (1.89").

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Average rainfall days in January
Rose Hill, IL

Average rainfall days in January - Rose Hill, IL
  • Average rainfall days in January: 9.3 days

The month with the highest number of rainy days is May (18.7 days).
The months with the least rainy days are January and February (9.3 days).

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Average snowfall in January
Rose Hill, IL

Average snowfall in January - Rose Hill, IL
  • Average snowfall in January: 2.6"

The month with the highest snowfall is January (2.6").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in January
Rose Hill, IL

Average snowfall days in January - Rose Hill, 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
Rose Hill, IL

Average daylight in January / Average sunshine in January - Rose 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 1min

The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).

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Average sunshine days in January
Rose Hill, IL

Average sunshine days in January - Rose Hill, IL
  • Average sunshine days in January: 16.9 days

The month with the most sunshine days is October (18.2 days).
The month with the least sunshine days is May (10.1 days).

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Average UV index in January
Rose Hill, IL

Average UV index in January - Rose 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).

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Average cloud cover in January
Rose Hill, IL

Average cloud cover in January - Rose Hill, IL
  • Average cloud cover in January: 54

The month with the most cloud cover is January (Cloud cover 54).
The month with the least cloud cover is June (Cloud cover 29).

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Average visibility in January
Rose Hill, IL

Average visibility in January - Rose 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).

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Rose Hill, Illinois, USA

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