January weather forecast
Sunbury, PA

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Weather in January

January, the same as December, is another cold winter month in Sunbury, Pennsylvania, with an average temperature ranging between min 20.1°F (-6.6°C) and max 32.2°F (0.1°C).

Temperature

Sunbury witnesses the coldest weather in January, with temperatures averaging a high of 32.2°F (0.1°C) and a low of 20.1°F (-6.6°C).

Humidity

The average relative humidity in January in Sunbury is 79%.

Rainfall

In Sunbury, during January, the rain falls for 7.7 days and regularly aggregates up to 0.87" (22mm) of precipitation. In Sunbury, during the entire year, the rain falls for 133.4 days and collects up to 13.15" (334mm) of precipitation.

Snowfall

January through May, November and December are months with snowfall. In Sunbury, in January, during 9.3 snowfall days, 1.38" (35mm) of snow is typically accumulated. In Sunbury, during the entire year, snow falls for 32.1 days and aggregates up to 4.76" (121mm) of snow.

Daylight

In January, the average length of the day is 9h and 38min.
On the first day of January, sunrise is at 7:31 am and sunset at 4:49 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 5:22 pm EST.

Sunshine

The months with the least sunshine are January and February, with an average of 4.2h of sunshine.

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 low health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The UV index of 2 in January translates into these instructions:
It is important to always shield children, babies, and individuals with sensitive skin from prolonged exposure to the sun. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.

Frequently asked questions

What are the coldest months?

January stands out as Sunbury's coldest month, with an average high-temperature of 32.2°F (0.1°C) and a low-temperature of 20.1°F (-6.6°C).

How cold is January?

January temperatures vary between a high-temperature of 32.2°F (0.1°C) and a low-temperature of 20.1°F (-6.6°C).

What is the average humidity in January?

In January, the average relative humidity in Sunbury, Pennsylvania, is 79%.

How much does it rain in January?

In Sunbury, during January, the rain falls for 7.7 days and regularly aggregates up to 0.87" (22mm) of precipitation.

How much does it snow in Sunbury in January?

In January, it is snowing for 9.3 days. Throughout January, 1.38" (35mm) of snow is accumulated.

How many hours of daylight does Sunbury have in January?

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

When is the sunrise / sunset in January?

On the first day of January, sunrise is at 7:31 am and sunset at 4:49 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 5:22 pm EST.

What are the months with the least sunshine?

January and February, with an average of 4.2h of sunshine, are months with the least sunshine.

How many hours of sunshine does Sunbury have in January?

The average sunshine duration in January is 4.2h.

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

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

What is the UV index intensity in January?

The average daily maximum UV index in January is 2. 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
Sunbury, PA

Average temperature in January - Sunbury, PA
  • Average high temperature in January: 32.2°F

The warmest month (with the highest average high temperature) is July (82.2°F).
The month with the lowest average high temperature is January (32.2°F).

  • Average low temperature in January: 20.1°F

The month with the highest average low temperature is July (61.2°F).
The coldest month (with the lowest average low temperature) is January (20.1°F).

Average pressure in January
Sunbury, PA

Average pressure in January - Sunbury, 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
Sunbury, PA

Average wind speed in January - Sunbury, PA
  • Average wind speed in January: 7.5mph

The windiest month (with the highest average wind speed) is April (7.9mph).
The calmest month (with the lowest average wind speed) is August (4.6mph).

Average humidity in January
Sunbury, PA

Average humidity in January - Sunbury, PA
  • Average humidity in January: 79%

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

Average rainfall in January
Sunbury, PA

Average rainfall in January - Sunbury, PA
  • Average rainfall in January: 0.87"

The wettest month (with the highest rainfall) is July (1.65").
The driest month (with the least rainfall) is September (0.75").

Average rainfall days in January
Sunbury, PA

Average rainfall days in January - Sunbury, PA
  • Average rainfall days in January: 7.7 days

The month with the highest number of rainy days is May (14.7 days).
The month with the least rainy days is January (7.7 days).

Average snowfall in January
Sunbury, PA

Average snowfall in January - Sunbury, PA
  • Average snowfall in January: 1.38"

The month with the highest snowfall is February (1.46").
The months with the least snowfall are June, July, August, September and October (0").

Average snowfall days in January
Sunbury, PA

Average snowfall days in January - Sunbury, PA
  • Average snowfall days in January: 9.3 days

The month with the highest number of snowfall days is January (9.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in January / Average sunshine in January - Sunbury, 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 1min

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The months with the least sunshine are January and February (Average sunshine: 4h and 12min).

Average sunshine days in January
Sunbury, PA

Average sunshine days in January - Sunbury, PA
  • Average sunshine days in January: 16.9 days

The month with the most sunshine days is November (19.4 days).
The month with the least sunshine days is April (13.4 days).

Average UV index in January
Sunbury, PA

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

The month with the highest UV index is 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
Sunbury, PA

Average cloud cover in January - Sunbury, PA
  • Average cloud cover in January: 53

The months with the most cloud cover are February and December (Cloud cover 54).
The month with the least cloud cover is July (Cloud cover 32).

Average visibility in January
Sunbury, PA

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

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

Sunbury, Pennsylvania, USA

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