January weather forecast
Symerton, IL

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Weather in January

January, like December, is a freezing cold winter month in Symerton, Illinois, with temperature in the range of an average low of 17.8°F (-7.9°C) and an average high of 29.7°F (-1.3°C).

Temperature

January, noted for its average high-temperature of 29.7°F (-1.3°C) and an average low-temperature of 17.8°F (-7.9°C), is considered the coldest month.

Humidity

In Symerton, the average relative humidity in January is 82%.

Rainfall

In Symerton, during January, the rain falls for 5.8 days and regularly aggregates up to 1.73" (44mm) of precipitation. In Symerton, during the entire year, the rain falls for 160.4 days and collects up to 33.5" (851mm) of precipitation.

Snowfall

January through April, October through December are months with snowfall in Symerton, Illinois. In January, it is snowing for 10.6 days. Throughout January, 3.74" (95mm) of snow is accumulated. Throughout the year, in Symerton, Illinois, there are 38.7 snowfall days, and 15.39" (391mm) of snow is accumulated.

Daylight

The average length of the day in January in Symerton is 9h and 36min.
On the first day of the month, sunrise is at 7:18 am and sunset at 4:33 pm. On the last day of January, in Symerton, Illinois, sunrise is at 7:04 am and sunset at 5:06 pm CST.

Sunshine

The month with the least sunshine is January, with an average of 3.9h of sunshine.

UV index

In January, the average daily maximum UV index in Symerton is 2. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: The maximum daily UV index, 2 in January, converts into the following recommendations:
While many people can endure lengthy sun exposure, it remains imperative to safeguard babies, children, and fair-skinned individuals. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
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Frequently asked questions

What time of the year is the coldest in Symerton?

Symerton, Illinois, witnesses the coldest weather in January, with temperatures averaging a high of 29.7°F (-1.3°C) and a low of 17.8°F (-7.9°C).

How cold is January in Symerton?

January temperatures in Symerton, Illinois, vary between a high-temperature of 29.7°F (-1.3°C) and a low-temperature of 17.8°F (-7.9°C).

What is the average humidity in January in Symerton?

The average relative humidity in January in Symerton, Illinois, is 82%.

How much does it rain in Symerton in January?

In January, in Symerton, the rain falls for 5.8 days. Throughout January, 1.73" (44mm) of precipitation is accumulated.

How much does it snow in Symerton in January?

In Symerton, Illinois, during January, snow falls for 10.6 days and regularly aggregates up to 3.74" (95mm) of snow.

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

In Symerton, Illinois, the average day length in January is 9h and 36min.

When are sunrise and sunset in January in Symerton?

In January, on the first day of the month, sunrise is at 7:18 am and sunset at 4:33 pm. On the last day of the month, in Symerton, Illinois, sunrise is at 7:04 am and sunset at 5:06 pm CST.

What is the month with the least sunshine in Symerton?

January has the least sunshine of the year in Symerton, with an average of 3.9h of sunshine.

How many hours of sunshine does Symerton have in January?

In January, the average sunshine duration in Symerton, Illinois, is 3.9h.

What is the UV index intensity in January in Symerton?

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

Average temperature in January - Symerton, IL
  • Average high temperature in January: 29.7°F

The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (29.7°F).

  • Average low temperature in January: 17.8°F

The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (17.8°F).

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Average pressure in January
Symerton, IL

Average pressure in January - Symerton, IL
  • Average pressure in January: 30.12"Hg

The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed in January
Symerton, IL

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

The windiest months (with the highest average wind speed) are January and April (9.9mph).
The calmest month (with the lowest average wind speed) is August (6mph).

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Average humidity in January
Symerton, IL

Average humidity in January - Symerton, IL
  • Average humidity in January: 82%

The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (72%).

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Average rainfall in January
Symerton, IL

Average rainfall in January - Symerton, IL
  • Average rainfall in January: 1.73"

The wettest month (with the highest rainfall) is May (4.57").
The driest months (with the least rainfall) are February and November (1.69").

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Average rainfall days in January
Symerton, IL

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

The month with the highest number of rainy days is May (19.2 days).
The month with the least rainy days is January (5.8 days).

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Average snowfall in January
Symerton, IL

Average snowfall in January - Symerton, IL
  • Average snowfall in January: 3.74"

The month with the highest snowfall is February (4.29").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in January
Symerton, IL

Average snowfall days in January - Symerton, IL
  • Average snowfall days in January: 10.6 days

The month with the highest number of snowfall days is January (10.6 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
Symerton, IL

Average daylight in January / Average sunshine in January - Symerton, IL
  • Average daylight in January: 9h and 4min

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in January: 3h and 5min

The months with the most sunshine are June, July and August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).

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Average sunshine days in January
Symerton, IL

Average sunshine days in January - Symerton, IL
  • Average sunshine days in January: 15.4 days

The month with the most sunshine days is November (17.2 days).
The month with the least sunshine days is July (8.6 days).

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Average UV index in January
Symerton, IL

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

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

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Average cloud cover in January
Symerton, IL

Average cloud cover in January - Symerton, IL
  • Average cloud cover in January: 60

The month with the most cloud cover is January (Cloud cover 60).
The months with the least cloud cover are August and September (Cloud cover 33).

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Average visibility in January
Symerton, IL

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

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

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Symerton, Illinois, USA

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