January weather forecast
Plainville, IL

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Weather in January

January, like December, in Plainville, Illinois, is an icy winter month, with temperature in the range of an average low of 21.6°F (-5.8°C) and an average high of 34°F (1.1°C).

Temperature

January is the coldest month, exhibiting average temperatures of 34°F (1.1°C) at the peak and 21.6°F (-5.8°C) at the base.

Humidity

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

Rainfall

January is the month with the least rainfall in Plainville, Illinois. Rain falls for 5.3 days and accumulates 1.14" (29mm) of precipitation.

Snowfall

Months with snowfall are January through April, November and December. January is the month with the most snowfall. Snow falls for 6.2 days and accumulates 3.31" (84mm) of snow.

Daylight

In Plainville, the average length of the day in January is 9h and 44min.
On the first day of the month, sunrise is at 7:25 am and sunset at 4:50 pm. On the last day of January, in Plainville, sunrise is at 7:13 am and sunset at 5:22 pm CST.

Sunshine

With an average of 4.5h of sunshine, January has the least sunshine of the year in Plainville.

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 of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for average individuals.
Note: A maximum high UV index of 2 in January translates into the following recommendations:
Children, infants, and individuals with sensitive skin should be constantly protected from extended sun exposure. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.
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Frequently asked questions

What time of the year is the coldest in Plainville?

In Plainville, the lowest temperatures are generally noted in January, averaging a high of 34°F (1.1°C) and a low of 21.6°F (-5.8°C).

How cold is January in Plainville?

The average high-temperature, in January, in Plainville, is 34°F (1.1°C), while the average low-temperature is 21.6°F (-5.8°C).

What is the average humidity in January in Plainville?

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

What is the driest month in Plainville?

The month with the least rainfall in Plainville is January, when the rain falls for 5.3 days and typically collects 1.14" (29mm) of precipitation.

How many days does it rain in January in Plainville?

In Plainville, Illinois, in January, it is raining for 5.3 days, with typically 1.14" (29mm) of accumulated precipitation.

What is the snowiest month in Plainville?

January is the month with the most snowfall in Plainville. Snow falls for 6.2 days and accumulates 3.31" (84mm) of snow.

How many days does it snow in January in Plainville?

In Plainville, during January, snow falls for 6.2 days and regularly aggregates up to 3.31" (84mm) of snow.

How many hours of daylight does Plainville have in January?

In Plainville, Illinois, the average day length in January is 9h and 44min.

What time are sunrise and sunset in January in Plainville?

In January, on the first day of the month, sunrise is at 7:25 am and sunset at 4:50 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 5:22 pm CST.

What is the month with the least sunshine in Plainville?

With an average of 4.5h of sunshine, January has the least sunshine of the year in Plainville.

How many hours of sunshine does Plainville have in January?

The average sunshine duration in January is 4.5h.

When is the lowest UV index in Plainville?

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

How high is the UV index in January in Plainville?

In Plainville, Illinois, the average daily maximum UV index in January is 2. A UV Index reading of 2, and below, represents a low health threat from exposure to Sun's UV rays.
Today
Tomorrow
Long-term
YearJanuaryFMAMJJASOND
Dec
January
Feb
Average high temperature
39.6°F 4.2°C
34°F 1.1°C
38.8°F 3.8°C
Average low temperature
27.1°F -2.7°C
21.6°F -5.8°C
24.8°F -4°C
Average pressure
30.12" 765mmHg
30.15" 766mmHg
30.12" 765mmHg
Average wind speed
9.5mph 15.3km/h
9.9mph 15.9km/h
9.9mph 15.9km/h
Average max. wind speed
10.2mph 16.4km/h
10.6mph 17.1km/h
10.6mph 17.1km/h
Average wind speed gusts
15.4mph 24.8km/h
16mph 25.7km/h
15.8mph 25.4km/h
Average humidity
77%
77%
77%
Average rainfall
1.34" 34mm
1.14" 29mm
1.22" 31mm
Average rainfall days
6.9
5.3
6.2
Average snowfall
1.26" 32mm
3.31" 84mm
2.24" 57mm
Average snowfall days
4.2
6.2
5
Average daylight
9h 2min
9h 4min
10h 4min
Average sunshine
4h 5min
4h 3min
4h 4min
Average sunshine days
20.3
20
17.3
Average UV index
2
2
2
Average cloud cover
48%
51%
49%
Average visibility
6mi 9.7km
6mi 9.7km
6mi 9.7km

Average temperature in January
Plainville, IL

Average temperature in January - Plainville, IL
  • Average high temperature in January: 34°F

The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (34°F).

  • Average low temperature in January: 21.6°F

The month with the highest average low temperature is July (67.1°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).

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Average pressure in January
Plainville, IL

Average pressure in January - Plainville, 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 (29.91"Hg).

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Average wind speed in January
Plainville, IL

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

The windiest months (with the highest average wind speed) are January, February and April (9.9mph).
The calmest month (with the lowest average wind speed) is July (6.2mph).

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Average humidity in January
Plainville, IL

Average humidity in January - Plainville, IL
  • Average humidity in January: 77%

The months with the highest relative humidity are May, June and July (80%).
The month with the lowest relative humidity is October (70%).

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Average rainfall in January
Plainville, IL

Average rainfall in January - Plainville, IL
  • Average rainfall in January: 1.14"

The wettest month (with the highest rainfall) is May (3.39").
The driest month (with the least rainfall) is January (1.14").

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Average rainfall days in January
Plainville, IL

Average rainfall days in January - Plainville, IL
  • Average rainfall days in January: 5.3 days

The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is January (5.3 days).

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Average snowfall in January
Plainville, IL

Average snowfall in January - Plainville, IL
  • Average snowfall in January: 3.31"

The month with the highest snowfall is January (3.31").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in January
Plainville, IL

Average snowfall days in January - Plainville, IL
  • Average snowfall days in January: 6.2 days

The month with the highest number of snowfall days is January (6.2 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
Plainville, IL

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

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 24min).

  • Average sunshine in January: 4h and 3min

The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).

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Average sunshine days in January
Plainville, IL

Average sunshine days in January - Plainville, IL
  • Average sunshine days in January: 20 days

The month with the most sunshine days is December (20.3 days).
The month with the least sunshine days is June (11.6 days).

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Average UV index in January
Plainville, IL

Average UV index in January - Plainville, 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
Plainville, IL

Average cloud cover in January - Plainville, IL
  • Average cloud cover in January: 51

The month with the most cloud cover is January (Cloud cover 51).
The month with the least cloud cover is July (Cloud cover 27).

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Average visibility in January
Plainville, IL

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

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