January weather forecast
Marianna, PA

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Weather in January

January, the same as December, is an icy winter month in Marianna, Pennsylvania, with temperature in the range of an average low of 21.2°F (-6°C) and an average high of 34.3°F (1.3°C).

Temperature

Marianna's coldest temperatures are experienced in January, with average high temperatures of 34.3°F (1.3°C) and lows of 21.2°F (-6°C).

Humidity

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

Rainfall

In Marianna, Pennsylvania, during January, the rain falls for 9.3 days and regularly aggregates up to 1.57" (40mm) of precipitation. In Marianna, during the entire year, the rain falls for 170.8 days and collects up to 25.2" (640mm) of precipitation.

Snowfall

Months with snowfall are January through April, October through December. In Marianna, in January, snow falls for 16.1 days, with typically accumulated 3.62" (92mm) of snow. Throughout the year, there are 54.5 snowfall days, and 14.41" (366mm) of snow is accumulated.

Daylight

The average length of the day in January is 9h and 43min.
On the first day of January, sunrise is at 7:42 am and sunset at 5:05 pm. On the last day of the month, sunrise is at 7:29 am and sunset at 5:37 pm EST.

Sunshine

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

UV index

The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for average individuals.
Note: The maximum UV index of 2 during January translates into these guidelines:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.

Frequently asked questions

What part of the year is the coldest?

In Marianna, January records the average lowest temperatures, peaking at 34.3°F (1.3°C) and reaching a low of 21.2°F (-6°C).

How cold is it in January?

Marianna in January has an average high-temperature of 34.3°F (1.3°C) and an average low-temperature of 21.2°F (-6°C).

What is the most humid month?

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 is 84%.

How much does it rain in January?

In January, the rain falls for 9.3 days. Throughout January, 1.57" (40mm) of precipitation is accumulated.

How much does it snow in January?

In Marianna, in January, snow falls for 16.1 days, with typically accumulated 3.62" (92mm) of snow.

How many hours of daylight does Marianna have in January?

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

When is the sunrise / sunset in January?

In January, on the first day of the month, sunrise is at 7:42 am and sunset at 5:05 pm. On the last day of the month, sunrise is at 7:29 am and sunset at 5:37 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 long on average sun shines in January?

The average sunshine duration in January is 3h.

When is the lowest UV index?

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

How high is the UV index in January?

The average daily maximum UV index in January is 2. A UV Index value 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
Marianna, PA

Average temperature in January - Marianna, PA
  • Average high temperature in January: 34.3°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 (34.3°F).

  • Average low temperature in January: 21.2°F

The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (21.2°F).

Average pressure in January
Marianna, PA

Average pressure in January - Marianna, 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
Marianna, PA

Average wind speed in January - Marianna, PA
  • Average wind speed in January: 7.7mph

The windiest month (with the highest average wind speed) is January (7.7mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).

Average humidity in January
Marianna, PA

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

The months with the highest relative humidity are January and February (84%).
The months with the lowest relative humidity are April, July and August (76%).

Average rainfall in January
Marianna, PA

Average rainfall in January - Marianna, PA
  • Average rainfall in January: 1.57"

The wettest month (with the highest rainfall) is May (2.91").
The driest month (with the least rainfall) is November (1.54").

Average rainfall days in January
Marianna, PA

Average rainfall days in January - Marianna, PA
  • Average rainfall days in January: 9.3 days

The month with the highest number of rainy days is May (19.7 days).
The month with the least rainy days is January (9.3 days).

Average snowfall in January
Marianna, PA

Average snowfall in January - Marianna, PA
  • Average snowfall in January: 3.62"

The month with the highest snowfall is February (3.66").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in January
Marianna, PA

Average snowfall days in January - Marianna, PA
  • Average snowfall days in January: 16.1 days

The month with the highest number of snowfall days is January (16.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in January / Average sunshine in January - Marianna, 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
Marianna, PA

Average sunshine days in January - Marianna, PA
  • Average sunshine days in January: 8.7 days

The month with the most sunshine days is November (16.3 days).
The month with the least sunshine days is February (8.2 days).

Average UV index in January
Marianna, PA

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

The months with the highest UV index are May, June and 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
Marianna, PA

Average cloud cover in January - Marianna, 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
Marianna, PA

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

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

Marianna, Pennsylvania, USA

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