January weather forecast
Katellen, PA

Share

Weather in January

January, the same as December, is another cold winter month in Katellen, Pennsylvania, with an average temperature ranging between max 33.4°F (0.8°C) and min 20.8°F (-6.2°C).

Temperature

The coldest period is January, when temperatures fluctuate between an average high of 33.4°F (0.8°C) and a low of 20.8°F (-6.2°C).

Humidity

In Katellen, the average relative humidity in January is 78%.

Rainfall

In January, in Katellen, the rain falls for 10 days. Throughout January, 2.48" (63mm) of precipitation is accumulated. Throughout the year, in Katellen, there are 167 rainfall days, and 33.5" (851mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Katellen are January through May, October through December. In Katellen, in January, snow falls for 9.6 days, with typically accumulated 4.33" (110mm) of snow. Throughout the year, in Katellen, there are 33.8 snowfall days, and 17.91" (455mm) of snow is accumulated.

Daylight

The average length of the day in January is 9h and 38min.
On the first day of the month, sunrise is at 7:25 am and sunset at 4:44 pm. On the last day of January, sunrise is at 7:12 am and sunset at 5:16 pm EST.

Sunshine

The average sunshine in January is 4.8h.

UV index

In Katellen, Pennsylvania, 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 average person.
Note: In January, the maximum UV index of 2 suggests these recommendations:
Though extended exposure to the sun typically does not concern most people, it is crucial to always shield children, infants, and those with sensitive skin. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
[Resources]

Frequently asked questions

What is the coldest time of year in Katellen?

In Katellen, the average lowest temperatures are observed in January, with a high of 33.4°F (0.8°C) and a low of 20.8°F (-6.2°C).

How cold is January in Katellen?

January temperatures in Katellen, Pennsylvania, vary between a high-temperature of 33.4°F (0.8°C) and a low-temperature of 20.8°F (-6.2°C).

What is the average humidity in January in Katellen?

In January, the average relative humidity is 78%.

How much does it rain in Katellen in January?

In Katellen, Pennsylvania, in January, during 10 rainfall days, 2.48" (63mm) of precipitation is typically accumulated.

How many days does it snow in January in Katellen?

In January, in Katellen, Pennsylvania, it is snowing for 9.6 days. Throughout January, 4.33" (110mm) of snow is accumulated.

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

In Katellen, Pennsylvania, the average day length in January is 9h and 38min.

What time are sunrise and sunset in January in Katellen?

In January, on the first day of the month, sunrise is at 7:25 am and sunset at 4:44 pm. On the last day of the month, sunrise is at 7:12 am and sunset at 5:16 pm EST.

How long on average sun shines in January in Katellen?

In Katellen, the average sunshine duration in January is 4.8h.

What is the UV index intensity in January in Katellen?

The average daily maximum UV index in January in Katellen, Pennsylvania, is 2. A UV Index estimate of 2, and below, represents a minimal hazard to health from 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
Katellen, PA

Average temperature in January - Katellen, PA
  • Average high temperature in January: 33.4°F

The warmest month (with the highest average high temperature) is July (82.8°F).
The month with the lowest average high temperature is January (33.4°F).

  • Average low temperature in January: 20.8°F

The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (20.8°F).

[Resources]

Average pressure in January
Katellen, PA

Average pressure in January - Katellen, PA
  • Average pressure in January: 30.08"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).

[Resources]

Average wind speed in January
Katellen, PA

Average wind speed in January - Katellen, PA
  • Average wind speed in January: 8.1mph

The windiest month (with the highest average wind speed) is March (8.2mph).
The calmest month (with the lowest average wind speed) is August (5mph).

[Resources]

Average humidity in January
Katellen, PA

Average humidity in January - Katellen, PA
  • Average humidity in January: 78%

The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is April (76%).

[Resources]

Average rainfall in January
Katellen, PA

Average rainfall in January - Katellen, PA
  • Average rainfall in January: 2.48"

The wettest month (with the highest rainfall) is July (3.46").
The driest month (with the least rainfall) is September (2.01").

[Resources]

Average rainfall days in January
Katellen, PA

Average rainfall days in January - Katellen, PA
  • Average rainfall days in January: 10 days

The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is February (9.9 days).

[Resources]

Average snowfall in January
Katellen, PA

Average snowfall in January - Katellen, PA
  • Average snowfall in January: 4.33"

The month with the highest snowfall is February (4.88").
The months with the least snowfall are June, July, August and September (0").

[Resources]

Average snowfall days in January
Katellen, PA

Average snowfall days in January - Katellen, PA
  • Average snowfall days in January: 9.6 days

The month with the highest number of snowfall days is January (9.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

[Resources]

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

Average daylight in January / Average sunshine in January - Katellen, 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: 4h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).

[Resources]

Average sunshine days in January
Katellen, PA

Average sunshine days in January - Katellen, PA
  • Average sunshine days in January: 15.3 days

The month with the most sunshine days is November (16.9 days).
The month with the least sunshine days is June (10.9 days).

[Resources]

Average UV index in January
Katellen, PA

Average UV index in January - Katellen, 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).

[Resources]

Average cloud cover in January
Katellen, PA

Average cloud cover in January - Katellen, PA
  • Average cloud cover in January: 49

The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is July (Cloud cover 34).

[Resources]

Average visibility in January
Katellen, PA

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

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

[Resources]

Katellen, Pennsylvania, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location