Dallas
Texas, USA
Long-term weather forecast
Long-term weather forecast

January weather forecast and climate
Dallas, TX

Dallas, Texas, modern city skyscrapers viewed from above, just before sunset
Dallas, Texas, modern city skyscrapers viewed from above, just before sunset
January is the coldest month in Dallas with the mercury holding to the range between 37.2°F (2.9°C) and 56.8°F (13.8°C). The weather generally feels warmer than registered with approximately five and a half hours of sunshine per day.
Snowfall is rare but occasionally accumulates to an average of 0.5" (12.7mm) and is only experienced for not more than a half of a day. Rainfall, though, is received for approximately six and a half days, to collect relatively low precipitation of 2.1" (53.3mm).
January is one of the loveliest months in Dallas, and with warm clothing, outdoors is pretty tolerable.

What is the coldest month in Dallas?

January is the coldest month in Dallas, with an average high-temperature of 56.8°F (13.8°C) and an average low-temperature of 37.2°F (2.9°C).

What is the temperature in January in Dallas?

The average high-temperature, in January, in Dallas, Texas, is 56.8°F (13.8°C), while the average low-temperature is 37.2°F (2.9°C).

What is the average humidity in January in Dallas?

The average relative humidity in January is 67.5%.

How many days does it rain in January in Dallas?

In January, the rain falls for 6.7 days. Throughout January, 2.1" (52.3mm) of precipitation is accumulated.

How many days does it snow in January in Dallas?

In Dallas, Texas, during January, snow falls for 0.5 days and regularly aggregates up to 0.5" (12.7mm) of snow.

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

In Dallas, the average length of the day in January is 10.3h.

How many hours of sunshine does Dallas have in January?

The average sunshine in January in Dallas is 5.9h.

What are the months with the lowest UV index in Dallas?

Months with the lowest UV index in Dallas are January and December, with an average maximum UV index of 3.

How high is the UV index in January in Dallas?

In January, the average daily maximum UV index in Dallas, Texas, is 3. A UV Index estimate of 3 to 5 represents a moderate vulnerability from unprotected exposure to the UV radiation.
Average temperature in January - Dallas, TX
  • Average high temperature in January: 56.8°F

The warmest month (with the highest average high temperature) is August (96.4°F).
The month with the lowest average high temperature is January (56.8°F).

  • Average low temperature in January: 37.3°F

The month with the highest average low temperature is August (76.8°F).
The coldest month (with the lowest average low temperature) is January (37.3°F).

Average humidity in January - Dallas, TX
  • Average humidity in January: 67.5%

The month with the highest relative humidity is May (69.7%).
The month with the lowest relative humidity is August (59.5%).

Average rainfall in January - Dallas, TX
  • Average rainfall in January: 2.1"

The wettest month (with the highest rainfall) is May (4.9").
The driest month (with the lowest rainfall) is August (1.9").

Average rainfall days in January - Dallas, TX
  • Average rainfall days in January: 6.7 days

The month with the highest number of rainy days is May (9.7 days).
The month with the lowest number of rainy days is August (4.6 days).

Average snowfall in January - Dallas, TX
  • Average snowfall in January: 0.5"

The month with the highest snowfall is February (0.6").
Months with the lowest snowfall are April, May, June, July, August, September, October and November (0").

Average snowfall days in January - Dallas, TX
  • Average snowfall days in January: 0.5 days

The month with the highest number of snowfall days is January (0.5 days).
Months with the lowest number of snowfall days are April, May, June, July, August, September and October (0 days).

Average daylight in January / Average sunshine in January - Dallas, TX
  • Average daylight in January: 10.3h

The month with the longest days is June (Average daylight: 14.3h).
The month with shortest days is December (Average daylight: 10h).

  • Average sunshine in January: 5.9h

The month with most sunshine is July (Average sunshine: 10.7h).
The month with least sunshine is December (Average sunshine: 5.6h).

Average UV index in January - Dallas, TX
  • Average UV index in January: 3

Months with the highest UV index are May, June, July and August (UV index 10).
Months with the lowest UV index are January and December (UV index 3).