January weather forecast
Monessen, PA

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Weather in January

January, like December, in Monessen, Pennsylvania, is an icy winter month, with an average temperature ranging between min 21.2°F (-6°C) and max 34°F (1.1°C).

Temperature

January, on average, is the coldest month, registering a high temperature of 34°F (1.1°C) and a low of 21.2°F (-6°C).

Humidity

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

Rainfall

In Monessen, during January, the rain falls for 11.7 days and regularly aggregates up to 2.64" (67mm) of precipitation. Throughout the year, there are 191.3 rainfall days, and 35.24" (895mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Monessen are January through May, October through December. The month with the most snowfall is January, when snow falls for 17.8 days and typically aggregates up to 6.26" (159mm) of snow.

Daylight

In January, the average length of the day is 9h and 42min.
On the first day of the month, sunrise is at 7:41 am and sunset at 5:04 pm. On the last day of January, sunrise is at 7:29 am and sunset at 5:36 pm EST.

Sunshine

The month with the least sunshine is January, with an average of 3h of sunshine.

UV index

In January, the average daily maximum UV index is 2. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for average individuals.
Note: A daily maximum UV index of 2 in January translates into the following instructions:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
Updated: Jul 18, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest month?

With average high and low temperatures of 34°F (1.1°C) and 21.2°F (-6°C) respectively, January is Monessen's coldest month.

How cold is it in January?

During January, Monessen experiences an average high-temperature of 34°F (1.1°C) and a low-temperature of 21.2°F (-6°C).

What is the most humid month?

The months with the highest humidity in Monessen 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 Monessen, Pennsylvania, is 84%.

How many days does it rain in January?

In Monessen, during January, the rain falls for 11.7 days and regularly aggregates up to 2.64" (67mm) of precipitation.

What is the snowiest month?

January is the month with the most snowfall. Snow falls for 17.8 days and accumulates 6.26" (159mm) of snow.

How much does it snow in January?

In January, it is snowing for 17.8 days. Throughout January, 6.26" (159mm) of snow is accumulated.

What is the average length of the day in January?

The average day length in January is 9h and 42min.

When is the sunrise / sunset in January?

In January, on the first day of the month, sunrise is at 7:41 am and sunset at 5:04 pm. On the last day of the month, sunrise is at 7:29 am and sunset at 5:36 pm EST.

What is the month with the least sunshine?

January has the least sunshine of the year, with an average of 3h of sunshine.

How many hours of sunshine does Monessen have in January?

In Monessen, the average sunshine duration in January is 3h.

How high is the UV index in January?

In January, the average daily maximum UV index is 2. A UV Index value of 2, and less, symbolizes 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
Monessen, PA

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

The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (34°F).

  • Average low temperature in January: 21.2°F

The month with the highest average low temperature is July (61.5°F).
The coldest month (with the lowest average low temperature) is January (21.2°F).

Average pressure in January
Monessen, PA

Average pressure in January - Monessen, 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
Monessen, PA

Average wind speed in January - Monessen, 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 (4.6mph).

Average humidity in January
Monessen, PA

Average humidity in January - Monessen, 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 (76%).

Average rainfall in January
Monessen, PA

Average rainfall in January - Monessen, PA
  • Average rainfall in January: 2.64"

The wettest month (with the highest rainfall) is May (3.78").
The driest month (with the least rainfall) is November (2.13").

Average rainfall days in January
Monessen, PA

Average rainfall days in January - Monessen, PA
  • Average rainfall days in January: 11.7 days

The month with the highest number of rainy days is May (21.8 days).
The months with the least rainy days are January and February (11.7 days).

Average snowfall in January
Monessen, PA

Average snowfall in January - Monessen, PA
  • Average snowfall in January: 6.26"

The month with the highest snowfall is January (6.26").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in January
Monessen, PA

Average snowfall days in January - Monessen, PA
  • Average snowfall days in January: 17.8 days

The month with the highest number of snowfall days is January (17.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in January / Average sunshine in January - Monessen, 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: 3h and 0min

The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).

Average sunshine days in January
Monessen, PA

Average sunshine days in January - Monessen, PA
  • Average sunshine days in January: 6.8 days

The month with the most sunshine days is November (14.3 days).
The month with the least sunshine days is January (6.8 days).

Average UV index in January
Monessen, PA

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

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

Average cloud cover in January
Monessen, PA

Average cloud cover in January - Monessen, PA
  • Average cloud cover in January: 68

The month with the most cloud cover is January (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 33).

Average visibility in January
Monessen, PA

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

The months with the highest visibility are April, August and November (6mi).
The months with the lowest visibility are January and February (4mi).

Monessen, Pennsylvania, USA

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