January weather forecast
Marietta, NY

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Weather in January

January, the same as December, in Marietta, New York, is another subzero cold winter month, with an average temperature varying between 16.9°F (-8.4°C) and 27.9°F (-2.3°C).

Temperature

Marietta, New York, notes the coldest temperatures in January, with a high average of 27.9°F (-2.3°C) and a low of 16.9°F (-8.4°C).

Humidity

In Marietta, New York, the average relative humidity in January is 87%.

Rainfall

In Marietta, New York, during January, the rain falls for 7 days and regularly aggregates up to 1.02" (26mm) of precipitation. In Marietta, New York, during the entire year, the rain falls for 137.8 days and collects up to 13.74" (349mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall in Marietta, New York. In Marietta, during January, snow falls for 18.1 days and regularly aggregates up to 3.35" (85mm) of snow. Throughout the year, in Marietta, there are 76.2 snowfall days, and 16.93" (430mm) of snow is accumulated.

Daylight

In January, the average length of the day is 9h and 27min.
On the first day of the month, sunrise is at 7:36 am and sunset at 4:41 pm. On the last day of January, in Marietta, sunrise is at 7:21 am and sunset at 5:16 pm EST.

Sunshine

In Marietta, the average sunshine in January is 2.8h.

UV index

In Marietta, the average daily maximum UV index in January is 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In January, the maximum UV index of 2 suggests this advice:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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Frequently asked questions

What is the coldest time of year in Marietta?

With an average high-temperature of 27.9°F (-2.3°C) and an average low-temperature of 16.9°F (-8.4°C), January is the coldest month in Marietta.

How cold is January in Marietta?

In January, the average high-temperature and low-temperature are 27.9°F (-2.3°C) and 16.9°F (-8.4°C) respectively.

What is the average humidity in January in Marietta?

In January, the average relative humidity in Marietta, New York, is 87%.

How much does it rain in Marietta in January?

In January, the rain falls for 7 days. Throughout January, 1.02" (26mm) of precipitation is accumulated.

How much does it snow in Marietta in January?

In Marietta, in January, snow falls for 18.1 days, with typically accumulated 3.35" (85mm) of snow.

What is the average length of the day in January in Marietta?

In Marietta, New York, the average day length in January is 9h and 27min.

What time are sunrise and sunset in January in Marietta?

On the first day of January in Marietta, New York, sunrise is at 7:36 am and sunset at 4:41 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 5:16 pm EST.

How many hours of sunshine does Marietta have in January?

In Marietta, New York, the average sunshine duration in January is 2.8h.

How high is the UV index in January in Marietta?

The average daily maximum UV index in January in Marietta is 2. A UV Index estimate of 2, and below, represents 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
Marietta, NY

Average temperature in January - Marietta, NY
  • Average high temperature in January: 27.9°F

The warmest month (with the highest average high temperature) is July (78.4°F).
The month with the lowest average high temperature is January (27.9°F).

  • Average low temperature in January: 16.9°F

The month with the highest average low temperature is July (59°F).
The coldest month (with the lowest average low temperature) is January (16.9°F).

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Average pressure in January
Marietta, NY

Average pressure in January - Marietta, NY
  • Average pressure in January: 30.06"Hg

The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in January
Marietta, NY

Average wind speed in January - Marietta, NY
  • Average wind speed in January: 10.3mph

The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest month (with the lowest average wind speed) is July (6mph).

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Average humidity in January
Marietta, NY

Average humidity in January - Marietta, NY
  • Average humidity in January: 87%

The month with the highest relative humidity is February (88%).
The months with the lowest relative humidity are April and May (79%).

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Average rainfall in January
Marietta, NY

Average rainfall in January - Marietta, NY
  • Average rainfall in January: 1.02"

The wettest month (with the highest rainfall) is May (1.5").
The driest month (with the least rainfall) is September (0.67").

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Average rainfall days in January
Marietta, NY

Average rainfall days in January - Marietta, NY
  • Average rainfall days in January: 7 days

The month with the highest number of rainy days is May (14.7 days).
The month with the least rainy days is February (6.7 days).

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Average snowfall in January
Marietta, NY

Average snowfall in January - Marietta, NY
  • Average snowfall in January: 3.35"

The month with the highest snowfall is February (3.74").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in January
Marietta, NY

Average snowfall days in January - Marietta, NY
  • Average snowfall days in January: 18.1 days

The month with the highest number of snowfall days is January (18.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in January /
Average sunshine in January
Marietta, NY

Average daylight in January / Average sunshine in January - Marietta, NY
  • Average daylight in January: 9h and 2min

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in January: 2h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 2h and 30min).

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Average sunshine days in January
Marietta, NY

Average sunshine days in January - Marietta, NY
  • Average sunshine days in January: 10.2 days

The month with the most sunshine days is September (17.1 days).
The month with the least sunshine days is February (7.9 days).

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Average UV index in January
Marietta, NY

Average UV index in January - Marietta, NY
  • Average UV index in January: 2

The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are February and December (UV index 1).

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Average cloud cover in January
Marietta, NY

Average cloud cover in January - Marietta, NY
  • Average cloud cover in January: 73

The month with the most cloud cover is February (Cloud cover 74).
The months with the least cloud cover are July and August (Cloud cover 33).

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Average visibility in January
Marietta, NY

Average visibility in January - Marietta, NY
  • Average visibility in January: 5mi

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

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Marietta, New York, USA

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