January weather forecast
Downs, IL

Weather in January

January, like December, is a freezing cold winter month in Downs, Illinois, with temperature in the range of an average low of 19.6°F (-6.9°C) and an average high of 31.3°F (-0.4°C).

Temperature

With an average high-temperature of 31.3°F (-0.4°C) and an average low-temperature of 19.6°F (-6.9°C), January is the coldest month.

Humidity

In Downs, the average relative humidity is 81%.

Rainfall

In Downs, it is raining for 5.8 days, with typically 1.18" (30mm) of accumulated precipitation. In Downs, during the entire year, the rain falls for 139 days and collects up to 20.83" (529mm) of precipitation.

Snowfall

January through April, November and December are months with snowfall in Downs, Illinois. January is the month with the most snowfall in Downs. Snow falls for 9.8 days and accumulates 2.8" (71mm) of snow.

Daylight

The average length of the day in Downs is 9.7h.

Sunshine

The month with the least sunshine in Downs is January, with an average of 3.9h 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 reading of 2, and below, represents a low threat to health from unsafe exposure to the UV radiation for average individuals.
Note: The daily maximum UV index of 2 interpret into the following advice:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. 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. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the coldest month in Downs?

The coldest month is January, with an average high-temperature of 31.3°F (-0.4°C) and an average low-temperature of 19.6°F (-6.9°C).

What is the average humidity in January in Downs?

In January, the average relative humidity in Downs is 81%.

How many days does it rain in January in Downs?

In Downs, during January, the rain falls for 5.8 days and regularly aggregates up to 1.18" (30mm) of precipitation.

When does it snow the most in Downs?

January is the month with the most snowfall. Snow falls for 9.8 days and accumulates 2.8" (71mm) of snow.

How many days does it snow in January in Downs?

In Downs, Illinois, in January, during 9.8 snowfall days, 2.8" (71mm) of snow is typically accumulated.

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

In January, the average length of the day is 9.7h.

What is the month with the least sunshine in Downs?

With an average of 3.9h of sunshine, January has the least sunshine of the year in Downs.

How many hours of sunshine does Downs have in January?

In Downs, the average sunshine in January is 3.9h.

What is the month with the lowest UV index in Downs?

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

What is the UV index intensity in January in Downs?

The average daily maximum UV index in January in Downs is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unsafe exposure to the Sun's UV rays.

Average temperature in January
Downs, IL

Average temperature in January - Downs, IL
  • Average high temperature in January: 31.3°F

The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (31.3°F).

  • Average low temperature in January: 19.6°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 (19.6°F).

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Average pressure in January
Downs, IL

Average pressure in January - Downs, IL
  • Average pressure in January: 30.14"

The month with the highest atmospheric pressure is January (30.14").
The month with the lowest atmospheric pressure is June (29.92").

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Average wind speed in January
Downs, IL

Average wind speed in January - Downs, IL
  • Average wind speed in January: 11mph

The windiest month (with the highest average wind speed) is January (11mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).

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Average humidity in January
Downs, IL

Average humidity in January - Downs, IL
  • Average humidity in January: 81%

The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (71%).

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Average rainfall in January
Downs, IL

Average rainfall in January - Downs, IL
  • Average rainfall in January: 1.18"

The wettest month (with the highest rainfall) is May (2.87").
The driest month (with the least rainfall) is December (1.1").

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Average rainfall days in January
Downs, IL

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

The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is January (5.8 days).

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Average snowfall in January
Downs, IL

Average snowfall in January - Downs, IL
  • Average snowfall in January: 2.8"

The month with the highest snowfall is January (2.8").
Months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in January
Downs, IL

Average snowfall days in January - Downs, IL
  • Average snowfall days in January: 9.8 days

The month with the highest number of snowfall days is January (9.8 days).
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
Downs, IL

Average daylight in January / Average sunshine in January - Downs, IL
  • Average daylight in January: 9.7h

The month with the longest days is June (Average daylight: 15h).
The month with the shortest days is December (Average daylight: 9.3h).

  • Average sunshine in January: 3.9h

The month with the most sunshine is June (Average sunshine: 10.1h).
The month with the least sunshine is January (Average sunshine: 3.9h).

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Average sunshine days in January
Downs, IL

Average sunshine days in January - Downs, IL
  • Average sunshine days in January: 16.6 days

The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is June (10.3 days).

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Average UV index in January
Downs, IL

Average UV index in January - Downs, IL
  • Average UV index in January: 2

Months with the highest UV index are June and July (UV index 6).
Months with the lowest UV index are January, February, November and December (UV index 2).

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Average cloud cover in January
Downs, IL

Average cloud cover in January - Downs, IL
  • Average cloud cover in January: 58

The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is September (Cloud cover 31).

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Average visibility in January
Downs, IL

Average visibility in January - Downs, IL
  • Average visibility in January: 6mi

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

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