January weather forecast
Dallas, PA

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Weather in January

January, like December, is a freezing cold winter month in Dallas, Pennsylvania, with temperature in the range of an average low of 18.3°F (-7.6°C) and an average high of 30°F (-1.1°C).

Temperature

In Dallas, the lowest average temperatures are observed in January, with a high of 30°F (-1.1°C) and a low of 18.3°F (-7.6°C).

Humidity

In January, the average relative humidity is 82%.

Rainfall

In Dallas, in January, it is raining for 7.6 days, with typically 1.81" (46mm) of accumulated precipitation. In Dallas, during the entire year, the rain falls for 154.5 days and collects up to 25.63" (651mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. In Dallas, during January, snow falls for 13.7 days and regularly aggregates up to 5.39" (137mm) of snow. Throughout the year, there are 58.2 snowfall days, and 26.1" (663mm) of snow is accumulated.

Daylight

The average length of the day in January in Dallas is 9h and 36min.
On the first day of the month, sunrise is at 7:29 am and sunset at 4:44 pm. On the last day of January, sunrise is at 7:16 am and sunset at 5:18 pm EST.

Sunshine

In January, the average sunshine is 3.8h.

UV index

In Dallas, the average daily maximum UV index in January is 2. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for the ordinary person.
Note: In January, the average maximum UV index of 2 translates into the following recommendations:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.

Frequently asked questions

What month is the coldest?

January tends to be the coldest month, with temperatures averaging a daily high of 30°F (-1.1°C) and a low of 18.3°F (-7.6°C).

How cold is it in January?

In Dallas, in January, the average high-temperature is 30°F (-1.1°C), and the average low-temperature is 18.3°F (-7.6°C).

What is the average humidity in January?

In Dallas, the average relative humidity in January is 82%.

How many days does it rain in January?

In Dallas, in January, during 7.6 rainfall days, 1.81" (46mm) of precipitation is typically accumulated.

How much does it snow in January?

In Dallas, during January, snow falls for 13.7 days and regularly aggregates up to 5.39" (137mm) of snow.

How many hours of daylight does Dallas have in January?

In Dallas, Pennsylvania, the average day length in January is 9h and 36min.

When is the sunrise / sunset in January in Dallas?

In January, on the first day of the month, sunrise is at 7:29 am and sunset at 4:44 pm. On the last day of the month, in Dallas, sunrise is at 7:16 am and sunset at 5:18 pm EST.

How long on average sun shines in January in Dallas?

The average sunshine duration in January is 3.8h.

What is the UV index intensity in January?

The average daily maximum UV index in January is 2. A UV Index reading of 2, and below, represents 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
Dallas, PA

Average temperature in January - Dallas, PA
  • Average high temperature in January: 30°F

The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (30°F).

  • Average low temperature in January: 18.3°F

The month with the highest average low temperature is July (59.4°F).
The coldest month (with the lowest average low temperature) is January (18.3°F).

Average pressure in January
Dallas, PA

Average pressure in January - Dallas, PA
  • Average pressure in January: 30.08"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
Dallas, PA

Average wind speed in January - Dallas, PA
  • Average wind speed in January: 7.9mph

The windiest months (with the highest average wind speed) are March and April (8mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).

Average humidity in January
Dallas, PA

Average humidity in January - Dallas, PA
  • Average humidity in January: 82%

The months with the highest relative humidity are February and December (84%).
The months with the lowest relative humidity are April, June and July (78%).

Average rainfall in January
Dallas, PA

Average rainfall in January - Dallas, PA
  • Average rainfall in January: 1.81"

The wettest month (with the highest rainfall) is August (2.48").
The driest month (with the least rainfall) is September (1.73").

Average rainfall days in January
Dallas, PA

Average rainfall days in January - Dallas, PA
  • Average rainfall days in January: 7.6 days

The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is January (7.6 days).

Average snowfall in January
Dallas, PA

Average snowfall in January - Dallas, PA
  • Average snowfall in January: 5.39"

The month with the highest snowfall is February (7.72").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in January
Dallas, PA

Average snowfall days in January - Dallas, PA
  • Average snowfall days in January: 13.7 days

The month with the highest number of snowfall days is January (13.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

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

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

  • Average sunshine in January: 3h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 3h and 42min).

Average sunshine days in January
Dallas, PA

Average sunshine days in January - Dallas, PA
  • Average sunshine days in January: 14.1 days

The month with the most sunshine days is September (15.6 days).
The month with the least sunshine days is April (10.3 days).

Average UV index in January
Dallas, PA

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

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

Average cloud cover in January
Dallas, PA

Average cloud cover in January - Dallas, PA
  • Average cloud cover in January: 61

The month with the most cloud cover is February (Cloud cover 62).
The month with the least cloud cover is July (Cloud cover 36).

Average visibility in January
Dallas, PA

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

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

Dallas, Pennsylvania, USA

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