January weather forecast
Dunbar, PA

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Weather in January

January, the same as December, is another cold winter month in Dunbar, Pennsylvania, with an average temperature ranging between min 20.5°F (-6.4°C) and max 34°F (1.1°C).

Temperature

January is Dunbar's coldest month, registering average high temperatures of 34°F (1.1°C) and lows of 20.5°F (-6.4°C).

Humidity

The months with the highest humidity are January and February, with an average relative humidity of 85%.

Rainfall

In Dunbar, during January, the rain falls for 8.9 days and regularly aggregates up to 1.42" (36mm) of precipitation. In Dunbar, during the entire year, the rain falls for 150.7 days and collects up to 16.65" (423mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. January is the month with the most snowfall. Snow falls for 15.9 days and accumulates 4.29" (109mm) of snow.

Daylight

In January, the average length of the day is 9h and 43min.
On the first day of January, sunrise is at 7:40 am and sunset at 5:03 pm. On the last day of the month, sunrise is at 7:27 am and sunset at 5:35 pm EST.

Sunshine

January has the least sunshine of the year, with an average of 2.9h of sunshine.

UV index

The months with the lowest UV index are January through March, October through December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: In January, the UV index of 2 transforms into the following advice:
Most people face no serious problems with extended sun exposure, but those with fair skin, infants, and children always need protection. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
Updated: Aug 16, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What part of the year is the coldest?

January, with an average high of 34°F (1.1°C) and a low of 20.5°F (-6.4°C), signifies the coldest month of the year.

How cold is January?

The high-temperature, in January, in Dunbar, records 34°F (1.1°C), while the low-temperature is 20.5°F (-6.4°C).

What is the most humid month?

January and February, with an average relative humidity of 85%, are most humid months.

What is the average humidity in January?

In Dunbar, the average relative humidity in January is 85%.

How many days does it rain in January?

In Dunbar, in January, it is raining for 8.9 days, with typically 1.42" (36mm) of accumulated precipitation.

What is the snowiest month?

January is the month with the most snowfall. Snow falls for 15.9 days and accumulates 4.29" (109mm) of snow.

How much does it snow in January?

In Dunbar, in January, during 15.9 snowfall days, 4.29" (109mm) of snow is typically accumulated.

How many hours of daylight does Dunbar have in January?

In January, the average day length is 9h and 43min.

When is the sunrise / sunset in January?

On the first day of January, sunrise is at 7:40 am and sunset at 5:03 pm. On the last day of the month, sunrise is at 7:27 am and sunset at 5:35 pm EST.

What is the month with the least sunshine?

The month with the least sunshine is January, with an average of 2.9h of sunshine.

How long on average sun shines in January?

In January, the average sunshine duration is 2.9h.

What is the month with the lowest UV index?

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

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 minimal health vulnerability 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
Dunbar, PA

Average temperature in January - Dunbar, PA
  • Average high temperature in January: 34°F

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (34°F).

  • Average low temperature in January: 20.5°F

The month with the highest average low temperature is July (59.9°F).
The coldest month (with the lowest average low temperature) is January (20.5°F).

Average pressure in January
Dunbar, PA

Average pressure in January - Dunbar, PA
  • Average pressure in January: 30.11"Hg

The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

Average wind speed in January
Dunbar, PA

Average wind speed in January - Dunbar, PA
  • Average wind speed in January: 8.4mph

The windiest month (with the highest average wind speed) is January (8.4mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

Average humidity in January
Dunbar, PA

Average humidity in January - Dunbar, PA
  • Average humidity in January: 85%

The months with the highest relative humidity are January and February (85%).
The months with the lowest relative humidity are July and August (77%).

Average rainfall in January
Dunbar, PA

Average rainfall in January - Dunbar, PA
  • Average rainfall in January: 1.42"

The wettest month (with the highest rainfall) is May (1.97").
The driest months (with the least rainfall) are September and November (0.91").

Average rainfall days in January
Dunbar, PA

Average rainfall days in January - Dunbar, PA
  • Average rainfall days in January: 8.9 days

The month with the highest number of rainy days is May (18.1 days).
The month with the least rainy days is February (7.9 days).

Average snowfall in January
Dunbar, PA

Average snowfall in January - Dunbar, PA
  • Average snowfall in January: 4.29"

The month with the highest snowfall is January (4.29").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in January
Dunbar, PA

Average snowfall days in January - Dunbar, PA
  • Average snowfall days in January: 15.9 days

The month with the highest number of snowfall days is January (15.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in January / Average sunshine in January - Dunbar, 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: 2h and 5min

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 54min).

Average sunshine days in January
Dunbar, PA

Average sunshine days in January - Dunbar, PA
  • Average sunshine days in January: 8.6 days

The month with the most sunshine days is November (16.6 days).
The month with the least sunshine days is January (8.6 days).

Average UV index in January
Dunbar, PA

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

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

Average cloud cover in January
Dunbar, PA

Average cloud cover in January - Dunbar, PA
  • Average cloud cover in January: 70

The month with the most cloud cover is January (Cloud cover 70).
The month with the least cloud cover is August (Cloud cover 37).

Average visibility in January
Dunbar, PA

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

The month with the highest visibility is April (6mi).
The month with the lowest visibility is January (4mi).

Dunbar, Pennsylvania, USA

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