January weather forecast
Lebanon, PA

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Weather in January

The year starts off with January weather in Lebanon, Pennsylvania bearing the brunt of winter. Wintry conditions are the norm with the temperature hovering from 21.6°F (-5.8°C) to 33.8°F (1°C), making it one of the coldest months of the year. Despite shorter daylight hours, January maintains a balance between sunshine and cloud cover. Frigid conditions persist through the month, necessitating the need for ample winter wear. Snowfall gets introduced sparingly into the weather equation, serving as a reminder of the transition from the holiday season.

Temperature

January proves to be the coldest month, recording an average maximum temperature of 33.8°F (1°C) and a minimum temperature of 21.6°F (-5.8°C).

Humidity

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

Rainfall

In Lebanon, in January, during 6.7 rainfall days, 1.06" (27mm) of precipitation is typically accumulated. In Lebanon, Pennsylvania, during the entire year, the rain falls for 137.4 days and collects up to 16.26" (413mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. January is the month with the most snowfall. Snow falls for 5.2 days and accumulates 1.97" (50mm) of snow.

Daylight

The average length of the day in January is 9h and 41min.
On the first day of January, sunrise is at 7:28 am and sunset at 4:49 pm. On the last day of the month, sunrise is at 7:15 am and sunset at 5:22 pm EST.

Sunshine

The average sunshine in January is 4.6h.

UV index

January through March, November and 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 minimal health vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: The daily high UV index of 2 during January translates into the following recommendations:
Children must always have sun protection, unlike most people, who can tolerate up to an hour in the sun without any burns. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.

Frequently asked questions

What are the coldest months?

January proves to be the coldest month, recording an average maximum temperature of 33.8°F (1°C) and a minimum temperature of 21.6°F (-5.8°C).

How cold is January in Lebanon?

During January, Lebanon experiences an average high-temperature of 33.8°F (1°C) and a low-temperature of 21.6°F (-5.8°C).

What is the average humidity in January?

In January, the average relative humidity is 78%.

How many days does it rain in January?

In Lebanon, in January, it is raining for 6.7 days, with typically 1.06" (27mm) of accumulated precipitation.

What is the snowiest month in Lebanon?

January is the month with the most snowfall. Snow falls for 5.2 days and accumulates 1.97" (50mm) of snow.

How many days does it snow in January?

In January, it is snowing for 5.2 days. Throughout January, 1.97" (50mm) of snow is accumulated.

What is the average length of the day in January?

In January, the average day length is 9h and 41min.

What time are sunrise and sunset in January?

In January, on the first day of the month, sunrise is at 7:28 am and sunset at 4:49 pm. On the last day of the month, sunrise is at 7:15 am and sunset at 5:22 pm EST.

How long on average sun shines in January?

The average sunshine duration in January is 4.6h.

When is the lowest UV index?

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index.

What is the UV index reading in January?

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

Average temperature in January - Lebanon, PA
  • Average high temperature in January: 33.8°F

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (33.8°F).

  • Average low temperature in January: 21.6°F

The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).

Average pressure in January
Lebanon, PA

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

The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in January
Lebanon, PA

Average wind speed in January - Lebanon, PA
  • Average wind speed in January: 8.5mph

The windiest month (with the highest average wind speed) is March (8.8mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

Average humidity in January
Lebanon, PA

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

The months with the highest relative humidity are February, May and October (81%).
The month with the lowest relative humidity is April (76%).

Average rainfall in January
Lebanon, PA

Average rainfall in January - Lebanon, PA
  • Average rainfall in January: 1.06"

The wettest month (with the highest rainfall) is August (2.13").
The driest month (with the least rainfall) is February (0.94").

Average rainfall days in January
Lebanon, PA

Average rainfall days in January - Lebanon, PA
  • Average rainfall days in January: 6.7 days

The month with the highest number of rainy days is May (15.9 days).
The month with the least rainy days is January (6.7 days).

Average snowfall in January
Lebanon, PA

Average snowfall in January - Lebanon, PA
  • Average snowfall in January: 1.97"

The month with the highest snowfall is January (1.97").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in January
Lebanon, PA

Average snowfall days in January - Lebanon, PA
  • Average snowfall days in January: 5.2 days

The month with the highest number of snowfall days is January (5.2 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in January / Average sunshine in January - Lebanon, PA
  • Average daylight in January: 9h and 4min

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in January: 4h and 4min

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).

Average sunshine days in January
Lebanon, PA

Average sunshine days in January - Lebanon, PA
  • Average sunshine days in January: 20.3 days

The month with the most sunshine days is January (20.3 days).
The month with the least sunshine days is May (11.5 days).

Average UV index in January
Lebanon, PA

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

The months with the highest UV index are May, June and July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

Average cloud cover in January
Lebanon, PA

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

The months with the most cloud cover are February and December (Cloud cover 51).
The month with the least cloud cover is July (Cloud cover 32).

Average visibility in January
Lebanon, PA

Average visibility in January - Lebanon, PA
  • Average visibility in January: 6mi

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

Lebanon, Pennsylvania, USA

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