Dallas Weather in January

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January's weather is the year's coldest at Dallas, Texas. Still, most days are mild and a few even warm. Some nights can get quite chilly now. Yet Dallas often has no snow this month.

This page gives detailed information on the typical January weather for Dallas. You can jump directly to data and descriptions for:

The temperature, precipitation and wind speed numbers here are historical averages based on climate data gathered at the Dallas Love Field Airport, located a few miles from downtown Dallas. The rest of the measurements are averages from the nearby Dallas - Fort Worth International Airport.

temperature iconTemperature

57 °F January average high 14 °C
37 °F January average low 3 °C

In most years, Dallas averages a daily maximum temperature for January that's between 53 and 61 degrees Fahrenheit (12 to 16 degrees Celsius). The minimum temperature usually falls between 34 and 41 °F (1 to 5 °C).

January is the coldest month overall for Dallas, with the 1st and 2nd its chilliest days. These, along with the last few days of December, have daily highs averaging 55.9 °F (13.3 °C) and lows of 37.0 °F (2.8 °C).

13 days 60 °F maximum or above (16 °C)
20 days 40 °F minimum or below (4 °C)

Most days during January, Dallas has a daytime temperature of over 40 °F (4 °C). The city averages 5 days this month when the thermometer reaches into the 70s °F (over 21 °C). Usually in January, the temperatures doesn't rise above 80 °F (27 °C).

The thermometer dips to below freezing on an average of 9 nights. Typically one of those nights gets as cold as 20 °F (-8 °C).

precipitation iconPrecipitation

2.1 inches total January precipitation 52 millimetres
7 days of rain

Half the time, Dallas receives 1 to 3 inches (28 to 83 mm) of rainfall in January. One in four years has drier weather, while another one in four is wetter.

Although snow is possible now, in most years January is free of snow. Dallas averages a January snowfall of half an inch (1 cm) or more in one out of four years.

sunshine iconSun

52 % sunshine in January
10 days with clear skies

January is one of the cloudiest months for Dallas. The sun's rays reach the ground during 52 percent of daylight hours on average, for a total of 166 hours in the month. Typically on 10 days this month the sky is mainly clear, with at most 30 percent cloud cover.

Sunlight in January at Dallas lasts for 10 hours and 16 minutes a day on average. The shortest day of the month is the 1st with 10 hours and 3 minutes of daylight. By the end of the month, the days have lengthened to 10:37 from sunrise to sunset. These durations can vary by a minute or two from year to year.

humidity iconHumidity

68 % January average humidity

The relative humidity in Dallas during January usually peaks at 79 percent in the morning then drops to 52 percent by mid afternoon.

7
Local Time12 am3 am6 am9 am12 pm3 pm6 pm9 pm
Humidity % 73 77 79 76 60 52 57 67

wind iconWind

8.8 mph January wind speed average 14.2 kph

January is less windy than most other months in Dallas.

lightning cloud iconStorms

1 day rainfall of 0.5 inches (13 mm) or more
1 day with thunderstorms in January
Reference

These weather data are long-term historical averages provided by the National Climatic Data Center of the United States. The temperature and precipitation numbers are 1981-2010 normals while the humidity and thunderstorm statistics are 1961-1990 normals.

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