January weather forecast
Dormont, PA

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Weather in January

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

Temperature

Dormont witnesses the coldest weather in January, with temperatures averaging a high of 33.4°F (0.8°C) and a low of 20.8°F (-6.2°C).

Humidity

January and February, with an average relative humidity of 84%, are the most humid months.

Rainfall

In Dormont, Pennsylvania, in January, it is raining for 8.5 days, with typically 1.65" (42mm) of accumulated precipitation. Throughout the year, in Dormont, there are 164 rainfall days, and 26.89" (683mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through April, October through December. The month with the most snowfall is January, when snow falls for 16.3 days and typically aggregates up to 3.46" (88mm) of snow.

Daylight

In January, the average length of the day is 9h and 41min.
On the first day of January, sunrise is at 7:43 am and sunset at 5:04 pm. On the last day of the month, sunrise is at 7:30 am and sunset at 5:36 pm EST.

Sunshine

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

UV index

In Dormont, the average daily maximum UV index in January is 2. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for the average person.
Note: The UV index of 2 during January leads to these advisories:
While sun exposure does not greatly affect most, individuals with fair skin, babies, and children always need vigilant safeguarding. The Sun's radiation is especially intense around midday; try to stay in shade during this period. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
Updated: Jun 27, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest month?

January, marked by an average high-temperature of 33.4°F (0.8°C) and a low-temperature of 20.8°F (-6.2°C), is the coldest month.

How cold is it in Dormont in January?

In Dormont, 33.4°F (0.8°C) is the average high-temperature and 20.8°F (-6.2°C) is the average low-temperature during January.

What are the most humid months?

The months with the highest humidity are January and February, with an average relative humidity of 84%.

What is the average humidity in January?

The average relative humidity in January in Dormont is 84%.

How many days does it rain in January?

In Dormont, in January, during 8.5 rainfall days, 1.65" (42mm) of precipitation is typically accumulated.

What is the snowiest month?

January is the month with the most snowfall. Snow falls for 16.3 days and accumulates 3.46" (88mm) of snow.

How much does it snow in January?

In January, it is snowing for 16.3 days. Throughout January, 3.46" (88mm) of snow is accumulated.

What is the average length of the day in January?

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

When is the sunrise / sunset in January in Dormont?

In January, on the first day of the month, sunrise is at 7:43 am and sunset at 5:04 pm. On the last day of the month, sunrise is at 7:30 am and sunset at 5:36 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 Dormont, the average sunshine duration in January is 2.9h.

What is the UV index intensity in January?

The average daily maximum UV index in January is 2. A UV Index reading of 2, and below, represents a low health risk 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
Dormont, PA

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

The warmest month (with the highest average high temperature) is July (83.8°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 (63°F).
The coldest month (with the lowest average low temperature) is January (20.8°F).

Average pressure in January
Dormont, PA

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

The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

Average wind speed in January
Dormont, PA

Average wind speed in January - Dormont, PA
  • Average wind speed in January: 7.9mph

The windiest month (with the highest average wind speed) is January (7.9mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).

Average humidity in January
Dormont, PA

Average humidity in January - Dormont, PA
  • Average humidity in January: 84%

The months with the highest relative humidity are January and February (84%).
The month with the lowest relative humidity is August (73%).

Average rainfall in January
Dormont, PA

Average rainfall in January - Dormont, PA
  • Average rainfall in January: 1.65"

The wettest month (with the highest rainfall) is May (3.07").
The driest month (with the least rainfall) is November (1.61").

Average rainfall days in January
Dormont, PA

Average rainfall days in January - Dormont, PA
  • Average rainfall days in January: 8.5 days

The month with the highest number of rainy days is May (18.4 days).
The month with the least rainy days is January (8.5 days).

Average snowfall in January
Dormont, PA

Average snowfall in January - Dormont, PA
  • Average snowfall in January: 3.46"

The month with the highest snowfall is January (3.46").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in January
Dormont, PA

Average snowfall days in January - Dormont, PA
  • Average snowfall days in January: 16.3 days

The month with the highest number of snowfall days is January (16.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

Average daylight in January / Average sunshine in January - Dormont, 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 18min).

  • Average sunshine in January: 2h and 5min

The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 2h and 54min).

Average sunshine days in January
Dormont, PA

Average sunshine days in January - Dormont, PA
  • Average sunshine days in January: 9.7 days

The month with the most sunshine days is November (16.4 days).
The month with the least sunshine days is February (9.5 days).

Average UV index in January
Dormont, PA

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

The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).

Average cloud cover in January
Dormont, PA

Average cloud cover in January - Dormont, PA
  • Average cloud cover in January: 69

The month with the most cloud cover is January (Cloud cover 69).
The month with the least cloud cover is August (Cloud cover 34).

Average visibility in January
Dormont, PA

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

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

Dormont, Pennsylvania, USA

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