Salt Lake City Weather in January
January is a month of extreme weather for Salt Lake City, Utah. This is the city's coldest month of the year and the time of deepest snow accumulation. But January is also the least windy month.
This page gives detailed information on the typical January temperature, precipitation, sun, humidity, wind and storms for Salt Lake City. The numbers here are historical averages based on climate data gathered at the Salt Lake City International Airport, located a few miles northwest of the city's center.
|39 °F||January average high||4 °C|
|24 °F||January average low||-4 °C|
January is the coldest month overall for Salt Lake City. Along with a few days at the end of December, the 1st and 2nd of January is overall the coldest period all year. Daily highs then average 37 degrees Fahrenheit (3 degrees Celsius) while lows are 24 °F (-4 °C).
|14 days||40 °F max. or more (4 °C)|
|12 days||20 °F min. or less (-8 °C)|
Salt Lake City averages 4 days in January when the thermometer reaches into the 50s °F (over 10 °C). Temperatures above 60 °F (16 °C) are not expected here this month. Typically 8 days remain entirely below freezing.
The thermometer dips to 10 °F (-12 °C) or lower on an average of 3 nights. In most years, January does not get as cold as 0 °F (-18 °C).
|1.4 in||total precipitation||36 mm|
|10 days||of rain or snowfall|
Half the time, Salt Lake City receives 0.8 to 1.8 inches (20 to 46 mm) of precipitation in January. One in four years has drier weather, while another one in four is wetter.
|12.7 in||total snowfall||32 cm|
|8 days||with new snow|
January's snowfall varies a lot from year to year in Salt Lake City. Between 6.6 and 14 inches (17 to 36 cm) of fresh snow arrives in half the years. Less new snow lands in one out of four Januaries, while another twenty-five percent are snowier.
Salt Lake City typically has at least an inch (2.5 cm) of snow on the ground for 16 days this month. The snow normally accumulates to 5 inches (13 cm) or deeper on 4 days.
|6 days||clear skies|
The sun's rays reach the ground in Salt Lake City during 45 percent of daylight hours on average in January, for a total of 135 hours in the month. Typically on 6 days this month the sky is mainly clear, with at most 30 percent cloud cover.
Sunlight in January at Salt Lake City lasts for 9 hours and 39 minutes a day on average. The shortest day of the month is the 1st with 9 hours and 19 minutes of daylight. By the end of the month, the days have lengthened to 10:06 from sunrise to sunset. These durations can vary by a minute or two from year to year.
|74 %||January average humidity|
The relative humidity in Salt Lake City during January usually peaks at 78 percent in the morning then drops to 63 percent in the afternoon.
|Local Time||2 am||5 am||8 am||11 am||2 pm||5 pm||8 pm||11 pm|
|7.5 mph||January wind speed average||12.1 kph|
The wind at Salt Lake City is calmest overall during January.
|4 days||snowfall of 1 inch (2.5 cm) or more|
|1 day||with thunderstorms in January|
Salt Lake City has a storm about once a decade in January that dumps 10 inches (25 cm) or more of snow.
January also averages a thunderstorm every couple of years.
The weather data here are long-term averages provided by the US National Centers for Environmental Information (NCEI). Temperature and precipitation are 1991-2020 normals while humidity and thunderstorms are 1961-1990 normals.