January weather forecast
Clarendon, PA

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Weather in January

January, the same as December, in Clarendon, Pennsylvania, is another subzero cold winter month, with an average temperature varying between 16.7°F (-8.5°C) and 28.2°F (-2.1°C).

Temperature

January, on average, is the coldest month, registering a high temperature of 28.2°F (-2.1°C) and a low of 16.7°F (-8.5°C).

Humidity

January and February, with an average relative humidity of 89%, are the most humid months.

Rainfall

In Clarendon, in January, during 8.1 rainfall days, 2.24" (57mm) of precipitation is typically accumulated. In Clarendon, Pennsylvania, during the entire year, the rain falls for 170.4 days and collects up to 27.13" (689mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. In Clarendon, in January, snow falls for 22.4 days, with typically accumulated 8.9" (226mm) of snow. Throughout the year, there are 90.1 snowfall days, and 39.41" (1001mm) of snow is accumulated.

Daylight

The average length of the day in January is 9h and 34min.
On the first day of the month, sunrise is at 7:43 am and sunset at 4:56 pm. On the last day of January, sunrise is at 7:29 am and sunset at 5:29 pm EST.

Sunshine

With an average of 2.1h of sunshine, January has the least sunshine of the year.

UV index

The months with the lowest UV index are January, February and December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for the average person.
Note: The daily high UV index of 1 during January translates into the following recommendations:
Prolonged sun exposure generally does not trouble most people. However, it is vital to ensure protection for babies, children, and individuals with sensitive skin. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
Updated: Aug 18, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What time of the year is the coldest?

During the coldest month in Clarendon, January, temperatures average a high of 28.2°F (-2.1°C) and a low of 16.7°F (-8.5°C).

How cold is it in January?

In January, in Clarendon, the average high-temperature is 28.2°F (-2.1°C), and the average low-temperature is 16.7°F (-8.5°C).

What is the most humid month?

January and February, with an average relative humidity of 89%, are most humid months.

What is the average humidity in January?

In January, the average relative humidity is 89%.

How much does it rain in January?

In Clarendon, in January, it is raining for 8.1 days, with typically 2.24" (57mm) of accumulated precipitation.

How many days does it snow in January?

In Clarendon, in January, snow falls for 22.4 days, with typically accumulated 8.9" (226mm) of snow.

How many hours of daylight does Clarendon have in January?

In Clarendon, the average day length in January is 9h and 34min.

When are sunrise and sunset in January?

In January, on the first day of the month, sunrise is at 7:43 am and sunset at 4:56 pm. On the last day of the month, sunrise is at 7:29 am and sunset at 5:29 pm EST.

What is the month with the least sunshine?

January has the least sunshine of the year, with an average of 2.1h of sunshine.

How long on average sun shines in January?

In Clarendon, the average sunshine duration in January is 2.1h.

What are the months with the lowest UV index?

January, February and December, with an average maximum UV index of 1, are months with the lowest UV index.

What is the UV index intensity in January?

In Clarendon, Pennsylvania, the average daily maximum UV index in January is 1. 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
Clarendon, PA

Average temperature in January - Clarendon, PA
  • Average high temperature in January: 28.2°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 (28.2°F).

  • Average low temperature in January: 16.7°F

The month with the highest average low temperature is July (56.8°F).
The coldest month (with the lowest average low temperature) is January (16.7°F).

Average pressure in January
Clarendon, PA

Average pressure in January - Clarendon, PA
  • Average pressure in January: 30.08"Hg

The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in January
Clarendon, PA

Average wind speed in January - Clarendon, PA
  • Average wind speed in January: 9.3mph

The windiest month (with the highest average wind speed) is January (9.3mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).

Average humidity in January
Clarendon, PA

Average humidity in January - Clarendon, PA
  • Average humidity in January: 89%

The months with the highest relative humidity are January and February (89%).
The month with the lowest relative humidity is May (80%).

Average rainfall in January
Clarendon, PA

Average rainfall in January - Clarendon, PA
  • Average rainfall in January: 2.24"

The wettest month (with the highest rainfall) is April (2.99").
The driest month (with the least rainfall) is September (1.77").

Average rainfall days in January
Clarendon, PA

Average rainfall days in January - Clarendon, PA
  • Average rainfall days in January: 8.1 days

The month with the highest number of rainy days is May (18.9 days).
The month with the least rainy days is January (8.1 days).

Average snowfall in January
Clarendon, PA

Average snowfall in January - Clarendon, PA
  • Average snowfall in January: 8.9"

The month with the highest snowfall is December (9.29").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in January
Clarendon, PA

Average snowfall days in January - Clarendon, PA
  • Average snowfall days in January: 22.4 days

The month with the highest number of snowfall days is January (22.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in January / Average sunshine in January - Clarendon, PA
  • Average daylight in January: 9h and 4min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in January: 2h and 1min

The month with the most sunshine is July (Average sunshine: 9h and 36min).
The month with the least sunshine is January (Average sunshine: 2h and 6min).

Average sunshine days in January
Clarendon, PA

Average sunshine days in January - Clarendon, PA
  • Average sunshine days in January: 4.3 days

The month with the most sunshine days is September (12.5 days).
The month with the least sunshine days is January (4.3 days).

Average UV index in January
Clarendon, PA

Average UV index in January - Clarendon, PA
  • Average UV index in January: 1

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

Average cloud cover in January
Clarendon, PA

Average cloud cover in January - Clarendon, PA
  • Average cloud cover in January: 80

The month with the most cloud cover is January (Cloud cover 80).
The months with the least cloud cover are July and August (Cloud cover 41).

Average visibility in January
Clarendon, PA

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

The months with the highest visibility are March, April, May, June, July, October and November (5mi).
The months with the lowest visibility are January, February, August, September and December (4mi).

Clarendon, Pennsylvania, USA

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