January weather forecast
Mount Aetna, PA

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Weather in January

January, the same as December, is another cold winter month in Mount Aetna, Pennsylvania, with temperature in the range of an average low of 21.7°F (-5.7°C) and an average high of 33.6°F (0.9°C).

Temperature

January, on average, is the coldest month, registering a high temperature of 33.6°F (0.9°C) and a low of 21.7°F (-5.7°C).

Humidity

The average relative humidity in January in Mount Aetna is 78%.

Rainfall

In Mount Aetna, during January, the rain falls for 9.3 days and regularly aggregates up to 2.52" (64mm) of precipitation. Throughout the year, there are 168.8 rainfall days, and 33.27" (845mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall in Mount Aetna. In January, it is snowing for 9.2 days. Throughout January, 3.98" (101mm) of snow is accumulated. Throughout the year, there are 29.6 snowfall days, and 15.59" (396mm) of snow is accumulated.

Daylight

In Mount Aetna, 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 5:21 pm EST.

Sunshine

In Mount Aetna, 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 in Mount Aetna. A UV Index estimate of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The maximum daily UV index, 2 in January, converts 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. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
Updated: Aug 24, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What month is the coldest?

January, known for its average high temperature of 33.6°F (0.9°C) and an average low temperature of 21.7°F (-5.7°C), is the coldest month in Mount Aetna.

How cold is January?

In Mount Aetna, in January, the average high-temperature is 33.6°F (0.9°C), and the average low-temperature is 21.7°F (-5.7°C).

What is the average humidity in January?

The average relative humidity in January is 78%.

How many days does it rain in January?

In Mount Aetna, during January, the rain falls for 9.3 days and regularly aggregates up to 2.52" (64mm) of precipitation.

How much does it snow in January?

In Mount Aetna, in January, during 9.2 snowfall days, 3.98" (101mm) of snow is typically accumulated.

How many hours of daylight does Mount Aetna have in January?

The average day length in January is 9h and 41min.

When 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, in Mount Aetna, sunrise is at 7:15 am and sunset at 5:21 pm EST.

How long on average sun shines in January?

In January, the average sunshine duration 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 is 2. A UV Index of 2, and less, symbolizes a low health risk from unsafe 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
Mount Aetna, PA

Average temperature in January - Mount Aetna, PA
  • Average high temperature in January: 33.6°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 (33.6°F).

  • Average low temperature in January: 21.7°F

The month with the highest average low temperature is July (63.3°F).
The coldest month (with the lowest average low temperature) is January (21.7°F).

Average pressure in January
Mount Aetna, PA

Average pressure in January - Mount Aetna, 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
Mount Aetna, PA

Average wind speed in January - Mount Aetna, 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
Mount Aetna, PA

Average humidity in January - Mount Aetna, 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
Mount Aetna, PA

Average rainfall in January - Mount Aetna, PA
  • Average rainfall in January: 2.52"

The wettest month (with the highest rainfall) is August (3.39").
The driest month (with the least rainfall) is September (2.24").

Average rainfall days in January
Mount Aetna, PA

Average rainfall days in January - Mount Aetna, PA
  • Average rainfall days in January: 9.3 days

The month with the highest number of rainy days is May (18.4 days).
The month with the least rainy days is January (9.3 days).

Average snowfall in January
Mount Aetna, PA

Average snowfall in January - Mount Aetna, PA
  • Average snowfall in January: 3.98"

The month with the highest snowfall is March (4.49").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in January
Mount Aetna, PA

Average snowfall days in January - Mount Aetna, PA
  • Average snowfall days in January: 9.2 days

The month with the highest number of snowfall days is January (9.2 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in January /
Average sunshine in January
Mount Aetna, PA

Average daylight in January / Average sunshine in January - Mount Aetna, 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: 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
Mount Aetna, PA

Average sunshine days in January - Mount Aetna, PA
  • Average sunshine days in January: 15.4 days

The month with the most sunshine days is November (17.6 days).
The month with the least sunshine days is May (10.2 days).

Average UV index in January
Mount Aetna, PA

Average UV index in January - Mount Aetna, PA
  • Average UV index in January: 2

The month with the highest UV index is June (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
Mount Aetna, PA

Average cloud cover in January - Mount Aetna, PA
  • Average cloud cover in January: 49

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

Average visibility in January
Mount Aetna, PA

Average visibility in January - Mount Aetna, PA
  • Average visibility in January: 6mi

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

Mount Aetna, Pennsylvania, USA

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