January weather forecast
Plainfield, IN

Weather in January

January, like December, in Plainfield, Indiana, is a wintry winter month, with average temperature ranging between max 33.6°F (0.9°C) and min 21°F (-6.1°C).

Temperature

With an average high-temperature of 33.6°F (0.9°C) and an average low-temperature of 21°F (-6.1°C), January is the coldest month.

Humidity

The average relative humidity in January is 81%.

Rainfall

In Plainfield, in January, during 9.5 rainfall days, 2.68" (68mm) of precipitation is typically accumulated. Throughout the year, there are 179.9 rainfall days, and 37.17" (944mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, November and December. The month with the most snowfall in Plainfield is January when snow falls for 11.8 days and typically aggregates up to 4.21" (107mm) of snow.

Daylight

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

Sunshine

January and December, with an average of 4.1h of sunshine, are months with the least sunshine.

UV index

January, February, October through 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 the exposure to the Sun's UV radiation for the average person.
Note: In January, the average maximum UV index of 2 translate into the following recommendations:
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 Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. 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 Plainfield?

The coldest month is January, with an average high-temperature of 33.6°F (0.9°C) and an average low-temperature of 21°F (-6.1°C).

What is the average humidity in January in Plainfield?

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

How many days does it rain in January in Plainfield?

In Plainfield, during January, the rain falls for 9.5 days and regularly aggregates up to 2.68" (68mm) of precipitation.

When does it snow the most in Plainfield?

The month with the most snowfall in Plainfield, Indiana, is January when snow falls for 11.8 days and typically aggregates up to 4.21" (107mm) of snow.

How much does it snow in Plainfield in January?

In Plainfield, during January, snow falls for 11.8 days and regularly aggregates up to 4.21" (107mm) of snow.

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

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

What is the month with the least sunshine in Plainfield?

Months with the least sunshine in Plainfield, Indiana, are January and December, with an average of 4.1h of sunshine.

How many hours of sunshine does Plainfield have in January?

In Plainfield, Indiana, the average sunshine in January is 4.1h.

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

January, February, October through December, with an average maximum UV index of 2, are months with the lowest UV index in Plainfield, Indiana.

What is the UV index reading in January in Plainfield?

The average daily maximum UV index in January in Plainfield is 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from the exposure to the Sun's UV radiation.

Average temperature in January
Plainfield, IN

Average temperature in January - Plainfield, IN
  • Average high temperature in January: 33.6°F

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (33.6°F).

  • Average low temperature in January: 21°F

The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (21°F).

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Average pressure in January
Plainfield, IN

Average pressure in January - Plainfield, IN
  • 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 (29.93").

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Average wind speed in January
Plainfield, IN

Average wind speed in January - Plainfield, IN
  • Average wind speed in January: 9.9mph

The windiest months (with the highest average wind speed) are January and February (9.9mph).
The calmest months (with the lowest average wind speed) are July and August (5.8mph).

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Average humidity in January
Plainfield, IN

Average humidity in January - Plainfield, IN
  • Average humidity in January: 81%

Months with the highest relative humidity are July and December (82%).
The month with the lowest relative humidity is October (74%).

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Average rainfall in January
Plainfield, IN

Average rainfall in January - Plainfield, IN
  • Average rainfall in January: 2.68"

The wettest month (with the highest rainfall) is May (4.53").
The driest months (with the least rainfall) are February and September (2.32").

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Average rainfall days in January
Plainfield, IN

Average rainfall days in January - Plainfield, IN
  • Average rainfall days in January: 9.5 days

The month with the highest number of rainy days is May (21.6 days).
The month with the least rainy days is January (9.5 days).

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Average snowfall in January
Plainfield, IN

Average snowfall in January - Plainfield, IN
  • Average snowfall in January: 4.21"

The month with the highest snowfall is January (4.21").
Months with the least snowfall are June, July, August, September and October (0").

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Average snowfall days in January
Plainfield, IN

Average snowfall days in January - Plainfield, IN
  • Average snowfall days in January: 11.8 days

The month with the highest number of snowfall days is January (11.8 days).
Months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in January /
Average sunshine in January
Plainfield, IN

Average daylight in January / Average sunshine in January - Plainfield, IN
  • Average daylight in January: 9.7h

The month with the longest days is June (Average daylight: 14.9h).
The month with the shortest days is December (Average daylight: 9.4h).

  • Average sunshine in January: 4.1h

The month with the most sunshine is June (Average sunshine: 10.1h).
Months with the least sunshine are January and December (Average sunshine: 4.1).

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Average sunshine days in January
Plainfield, IN

Average sunshine days in January - Plainfield, IN
  • Average sunshine days in January: 11.7 days

The month with the most sunshine days is November (15.6 days).
The month with the least sunshine days is May (7.3 days).

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Average UV index in January
Plainfield, IN

Average UV index in January - Plainfield, IN
  • Average UV index in January: 2

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

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Average cloud cover in January
Plainfield, IN

Average cloud cover in January - Plainfield, IN
  • Average cloud cover in January: 59

The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 30).

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Average visibility in January
Plainfield, IN

Average visibility in January - Plainfield, IN
  • Average visibility in January: 5mi

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

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