January weather forecast
Knoxville, PA

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Weather in January

January, like December, is another subzero cold winter month in Knoxville, Pennsylvania, with an average temperature fluctuating between 16.9°F (-8.4°C) and 28.2°F (-2.1°C).

Temperature

Knoxville records the coldest temperatures in January, averaging a high of 28.2°F (-2.1°C) and a low of 16.9°F (-8.4°C).

Humidity

The average relative humidity in January is 84%.

Rainfall

In January, the rain falls for 8.6 days. Throughout January, 1.89" (48mm) of precipitation is accumulated. In Knoxville, during the entire year, the rain falls for 168.3 days and collects up to 28.19" (716mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall in Knoxville. In Knoxville, in January, during 18.8 snowfall days, 6.77" (172mm) of snow is typically accumulated. In Knoxville, during the entire year, snow falls for 80.4 days and aggregates up to 33.03" (839mm) of snow.

Daylight

In Knoxville, the average length of the day in January is 9h and 32min.
On the first day of January, sunrise is at 7:37 am and sunset at 4:48 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 5:22 pm EST.

Sunshine

January, February and December, with an average of 3.1h of sunshine, are months with the least sunshine.

UV index

The months with the lowest UV index are January and December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for average individuals.
Note: The maximum daily UV index, 1 in January, converts into the following recommendations:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. When the Sun is at its strongest around midday, find shade and limit exposure. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
Updated: Jul 19, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What month is the coldest?

January is the coldest month, with an average high-temperature of 28.2°F (-2.1°C) and an average low-temperature of 16.9°F (-8.4°C).

How cold is January?

In January, in Knoxville, the average high-temperature is 28.2°F (-2.1°C), and the average low-temperature is 16.9°F (-8.4°C).

What is the average humidity in January?

In Knoxville, the average relative humidity in January is 84%.

How much does it rain in Knoxville in January?

In January, the rain falls for 8.6 days. Throughout January, 1.89" (48mm) of precipitation is accumulated.

How much does it snow in January?

In January, it is snowing for 18.8 days. Throughout January, 6.77" (172mm) of snow is accumulated.

What is the average length of the day in January?

In Knoxville, the average day length in January is 9h and 32min.

When are sunrise and sunset in January?

In January, on the first day of the month, sunrise is at 7:37 am and sunset at 4:48 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 5:22 pm EST.

What are the months with the least sunshine?

The months with the least sunshine are January, February and December, with an average of 3.1h of sunshine.

How many hours of sunshine does Knoxville have in January?

The average sunshine duration in January is 3.1h.

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

The months with the lowest UV index are January and December, with an average maximum UV index of 1.

What is the UV index reading in January?

In Knoxville, the average daily maximum UV index in January is 1. A UV Index estimate of 2, and below, represents a low health threat 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
Knoxville, PA

Average temperature in January - Knoxville, PA
  • Average high temperature in January: 28.2°F

The warmest month (with the highest average high temperature) is July (79.2°F).
The month with the lowest average high temperature is January (28.2°F).

  • Average low temperature in January: 16.9°F

The month with the highest average low temperature is July (57°F).
The coldest month (with the lowest average low temperature) is January (16.9°F).

Average pressure in January
Knoxville, PA

Average pressure in January - Knoxville, PA
  • Average pressure in January: 30.07"Hg

The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in January
Knoxville, PA

Average wind speed in January - Knoxville, PA
  • Average wind speed in January: 9.6mph

The windiest month (with the highest average wind speed) is January (9.6mph).
The calmest month (with the lowest average wind speed) is August (6mph).

Average humidity in January
Knoxville, PA

Average humidity in January - Knoxville, PA
  • Average humidity in January: 84%

The month with the highest relative humidity is February (86%).
The months with the lowest relative humidity are April, May and June (78%).

Average rainfall in January
Knoxville, PA

Average rainfall in January - Knoxville, PA
  • Average rainfall in January: 1.89"

The wettest month (with the highest rainfall) is April (2.95").
The driest month (with the least rainfall) is November (1.81").

Average rainfall days in January
Knoxville, PA

Average rainfall days in January - Knoxville, PA
  • Average rainfall days in January: 8.6 days

The month with the highest number of rainy days is July (18.9 days).
The month with the least rainy days is February (7.2 days).

Average snowfall in January
Knoxville, PA

Average snowfall in January - Knoxville, PA
  • Average snowfall in January: 6.77"

The month with the highest snowfall is February (7.76").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in January
Knoxville, PA

Average snowfall days in January - Knoxville, PA
  • Average snowfall days in January: 18.8 days

The month with the highest number of snowfall days is January (18.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in January /
Average sunshine in January
Knoxville, PA

Average daylight in January / Average sunshine in January - Knoxville, PA
  • Average daylight in January: 9h and 3min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in January: 3h and 1min

The month with the most sunshine is July (Average sunshine: 9h and 48min).
The months with the least sunshine are January, February and December (Average sunshine: 3h and 6min).

Average sunshine days in January
Knoxville, PA

Average sunshine days in January - Knoxville, PA
  • Average sunshine days in January: 8.2 days

The month with the most sunshine days is September (14.9 days).
The month with the least sunshine days is February (7.1 days).

Average UV index in January
Knoxville, PA

Average UV index in January - Knoxville, PA
  • Average UV index in January: 1

The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).

Average cloud cover in January
Knoxville, PA

Average cloud cover in January - Knoxville, PA
  • Average cloud cover in January: 71

The month with the most cloud cover is January (Cloud cover 71).
The month with the least cloud cover is August (Cloud cover 39).

Average visibility in January
Knoxville, PA

Average visibility in January - Knoxville, PA
  • Average visibility in January: 5mi

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

Knoxville, Pennsylvania, USA

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