January weather forecast
Woodlyn, PA

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Weather in January

January, like December, in Woodlyn, Pennsylvania, is a wintry winter month, with an average temperature ranging between min 25.7°F (-3.5°C) and max 37.4°F (3°C).

Temperature

Woodlyn witnesses the coldest weather in January, with temperatures averaging a high of 37.4°F (3°C) and a low of 25.7°F (-3.5°C).

Humidity

In Woodlyn, the average relative humidity in January is 74%.

Rainfall

January is the month with the least rainfall. Rain falls for 7.1 days and accumulates 1.61" (41mm) of precipitation.

Snowfall

January through May, November and December are months with snowfall. In Woodlyn, during January, snow falls for 3.5 days and regularly aggregates up to 1.73" (44mm) of snow. In Woodlyn, during the entire year, snow falls for 12.6 days and aggregates up to 7.28" (185mm) of snow.

Daylight

In Woodlyn, the average length of the day in January is 9h and 44min.
On the first day of January, sunrise is at 7:22 am and sunset at 4:46 pm. On the last day of the month, sunrise is at 7:10 am and sunset at 5:18 pm EST.

Sunshine

The average sunshine in January is 5h.

UV index

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for ordinary individuals.
Note: The maximum UV index, 2 during January, leads to the following recommendations:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
Updated: Aug 26, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest month in Woodlyn?

January is Woodlyn's coldest month, registering average high temperatures of 37.4°F (3°C) and lows of 25.7°F (-3.5°C).

How cold is January in Woodlyn?

During January, Woodlyn experiences an average high-temperature of 37.4°F (3°C) and a low-temperature of 25.7°F (-3.5°C).

What is the average humidity in January?

In January, the average relative humidity is 74%.

What is the driest month?

January is the month with the least rainfall. Rain falls for 7.1 days and accumulates 1.61" (41mm) of precipitation.

How many days does it rain in January?

In Woodlyn, in January, during 7.1 rainfall days, 1.61" (41mm) of precipitation is typically accumulated.

How many days does it snow in January in Woodlyn?

In Woodlyn, in January, snow falls for 3.5 days, with typically accumulated 1.73" (44mm) of snow.

What is the average length of the day in January?

The average day length in January is 9h and 44min.

When are sunrise and sunset in January?

On the first day of January, sunrise is at 7:22 am and sunset at 4:46 pm. On the last day of the month, sunrise is at 7:10 am and sunset at 5:18 pm EST.

How long on average sun shines in January?

In January, the average sunshine duration is 5h.

What is the month with the lowest UV index?

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index.

What is the UV index intensity in January?

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

Average temperature in January - Woodlyn, PA
  • Average high temperature in January: 37.4°F

The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (37.4°F).

  • Average low temperature in January: 25.7°F

The month with the highest average low temperature is July (68.7°F).
The coldest month (with the lowest average low temperature) is January (25.7°F).

Average pressure in January
Woodlyn, PA

Average pressure in January - Woodlyn, PA
  • Average pressure in January: 30.09"Hg

The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in January
Woodlyn, PA

Average wind speed in January - Woodlyn, PA
  • Average wind speed in January: 8.4mph

The windiest month (with the highest average wind speed) is March (8.6mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).

Average humidity in January
Woodlyn, PA

Average humidity in January - Woodlyn, PA
  • Average humidity in January: 74%

The months with the highest relative humidity are February, October and December (77%).
The month with the lowest relative humidity is April (71%).

Average rainfall in January
Woodlyn, PA

Average rainfall in January - Woodlyn, PA
  • Average rainfall in January: 1.61"

The wettest month (with the highest rainfall) is August (3.11").
The driest month (with the least rainfall) is January (1.61").

Average rainfall days in January
Woodlyn, PA

Average rainfall days in January - Woodlyn, PA
  • Average rainfall days in January: 7.1 days

The month with the highest number of rainy days is July (17 days).
The month with the least rainy days is January (7.1 days).

Average snowfall in January
Woodlyn, PA

Average snowfall in January - Woodlyn, PA
  • Average snowfall in January: 1.73"

The month with the highest snowfall is March (2.32").
The months with the least snowfall are June, July, August, September and October (0").

Average snowfall days in January
Woodlyn, PA

Average snowfall days in January - Woodlyn, PA
  • Average snowfall days in January: 3.5 days

The month with the highest number of snowfall days is February (3.8 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

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

Average daylight in January / Average sunshine in January - Woodlyn, 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: 5h and 0min

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).

Average sunshine days in January
Woodlyn, PA

Average sunshine days in January - Woodlyn, PA
  • Average sunshine days in January: 20.8 days

The month with the most sunshine days is January (20.8 days).
The month with the least sunshine days is July (11.3 days).

Average UV index in January
Woodlyn, PA

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

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in January
Woodlyn, PA

Average cloud cover in January - Woodlyn, PA
  • Average cloud cover in January: 44

The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 30).

Average visibility in January
Woodlyn, PA

Average visibility in January - Woodlyn, PA
  • Average visibility in January: 6mi

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

Woodlyn, Pennsylvania, USA

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