January weather forecast
Knox, PA

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Weather in January

January, the same as December, in Knox, Pennsylvania, is another subzero cold winter month, with temperature in the range of an average low of 17.8°F (-7.9°C) and an average high of 30.2°F (-1°C).

Temperature

Temperature readings reach their annual highs in January, averaging 30.2°F (-1°C) and a minimum average of 17.8°F (-7.9°C).

Humidity

The months with the highest humidity are January and February, with an average relative humidity of 88%.

Rainfall

In Knox, in January, during 7.5 rainfall days, 2.13" (54mm) of precipitation is typically accumulated. Throughout the year, there are 169.8 rainfall days, and 27.36" (695mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. The month with the most snowfall in Knox, Pennsylvania, is January, when snow falls for 21.3 days and typically aggregates up to 7.09" (180mm) of snow.

Daylight

In January, the average length of the day in Knox is 9h and 37min.
On the first day of January, sunrise is at 7:43 am and sunset at 4:59 pm. On the last day of the month, sunrise is at 7:30 am and sunset at 5:32 pm EST.

Sunshine

The month with the least sunshine in Knox is January, with an average of 2.4h of sunshine.

UV index

In Knox, the average daily maximum UV index in January is 2. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for the ordinary person.
Note: The maximum UV index of 2 during January translates into these guidelines:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Keep in mind! Snow's reflective quality can nearly double the intensity of the Sun's UV radiation.
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Frequently asked questions

What is the coldest time of year in Knox?

January, on average, is the coldest month, registering a high temperature of 30.2°F (-1°C) and a low of 17.8°F (-7.9°C).

How cold is January in Knox?

The average high-temperature, in January, in Knox, is 30.2°F (-1°C), while the average low-temperature is 17.8°F (-7.9°C).

What is the most humid month in Knox?

The months with the highest humidity in Knox, Pennsylvania, are January and February, with an average relative humidity of 88%.

What is the average humidity in January in Knox?

The average relative humidity in January is 88%.

How many days does it rain in January in Knox?

In Knox, in January, during 7.5 rainfall days, 2.13" (54mm) of precipitation is typically accumulated.

What is the snowiest month in Knox?

The month with the most snowfall in Knox is January, when snow falls for 21.3 days and typically aggregates up to 7.09" (180mm) of snow.

How much does it snow in Knox in January?

In Knox, Pennsylvania, in January, during 21.3 snowfall days, 7.09" (180mm) of snow is typically accumulated.

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

In January, the average day length in Knox, Pennsylvania, is 9h and 37min.

When are sunrise and sunset in January in Knox?

In January, on the first day of the month, sunrise is at 7:43 am and sunset at 4:59 pm. On the last day of the month, in Knox, Pennsylvania, sunrise is at 7:30 am and sunset at 5:32 pm EST.

What is the month with the least sunshine in Knox?

January has the least sunshine of the year in Knox, with an average of 2.4h of sunshine.

How many hours of sunshine does Knox have in January?

In January, the average sunshine duration in Knox is 2.4h.

What is the UV index reading in January in Knox?

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

Average temperature in January - Knox, PA
  • Average high temperature in January: 30.2°F

The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (30.2°F).

  • Average low temperature in January: 17.8°F

The month with the highest average low temperature is July (59°F).
The coldest month (with the lowest average low temperature) is January (17.8°F).

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Average pressure in January
Knox, PA

Average pressure in January - Knox, PA
  • Average pressure in January: 30.09"Hg

The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

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Average wind speed in January
Knox, PA

Average wind speed in January - Knox, PA
  • Average wind speed in January: 8.3mph

The windiest month (with the highest average wind speed) is January (8.3mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).

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Average humidity in January
Knox, PA

Average humidity in January - Knox, PA
  • Average humidity in January: 88%

The months with the highest relative humidity are January and February (88%).
The month with the lowest relative humidity is July (78%).

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Average rainfall in January
Knox, PA

Average rainfall in January - Knox, PA
  • Average rainfall in January: 2.13"

The wettest month (with the highest rainfall) is April (3.15").
The driest month (with the least rainfall) is August (1.69").

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Average rainfall days in January
Knox, PA

Average rainfall days in January - Knox, PA
  • Average rainfall days in January: 7.5 days

The month with the highest number of rainy days is May (19 days).
The month with the least rainy days is January (7.5 days).

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Average snowfall in January
Knox, PA

Average snowfall in January - Knox, PA
  • Average snowfall in January: 7.09"

The month with the highest snowfall is January (7.09").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in January
Knox, PA

Average snowfall days in January - Knox, PA
  • Average snowfall days in January: 21.3 days

The month with the highest number of snowfall days is January (21.3 days).
The 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
Knox, PA

Average daylight in January / Average sunshine in January - Knox, PA
  • 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: 2h and 2min

The month with the most sunshine is August (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 2h and 24min).

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Average sunshine days in January
Knox, PA

Average sunshine days in January - Knox, PA
  • Average sunshine days in January: 6 days

The month with the most sunshine days is September (14 days).
The month with the least sunshine days is February (5.7 days).

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Average UV index in January
Knox, PA

Average UV index in January - Knox, PA
  • Average UV index in January: 2

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

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Average cloud cover in January
Knox, PA

Average cloud cover in January - Knox, PA
  • Average cloud cover in January: 75

The month with the most cloud cover is January (Cloud cover 75).
The months with the least cloud cover are July and August (Cloud cover 38).

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Average visibility in January
Knox, PA

Average visibility in January - Knox, PA
  • Average visibility in January: 4mi

The months with the highest visibility are March, April, May, June, July, August, September, October and November (5mi).
The months with the lowest visibility are January, February and December (4mi).

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Knox, Pennsylvania, USA

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