Climateby Month

St. George, UT weather in January

NOAA 1991-2020 normals and daily records · St. George all year

St. George is chilly and mostly dry in January: highs average 54°F and nights drop to about 28°F. Expect about 6 wet days. Snowfall averages about 0.5 in. This is the depth of winter in St. George.

Normal high
54°F
Normal low
28°F
Wet days
6
1.2 in total
Snowfall
0.5 in
normal snowfall

How January changes from start to finish

Normal values at the start and end of January
January 1January 31
Normal high52°F56°F
Normal low28°F30°F
Chance of a wet day18%16%
Sunrise / sunset7:47 am / 5:27 pm7:37 am / 5:57 pm
Daylight9.7 h10.3 h

Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Mountain Time).

What kind of days to expect

  • Comfortable dayshigh 65-80°F (temperature only: no humidity station nearby)2 of 31
  • Hot dayshigh 90°F or more0 of 31
  • Wet daysat least 0.01 in of rain or melted snow6 of 31
  • Notable rainat least 0.10 in3 of 31
  • Freezing nightslow 32°F or below20 of 31
  • Snow on the groundsnow depth 1 in or more0 of 31

Average days per January, counted from daily records for each year 1991-2020.

Rain and snow in January

Normal precipitation is 1.2 in; a dry January brings about 0.3 in and a wet one about 1.6 in (25th and 75th percentiles). About 1 day brings half an inch or more. Normal snowfall is 0.5 in.

How January varies from year to year

  • Warmest January, 1991-20202003: average high 62°F
  • Coolest January2017: average high 50°F
  • Wettest January1993: 4.7 in
  • Driest January2002: 0.01 in
  • Highest reading72°F (January 21, 2000)
  • Lowest reading13°F (January 1, 1991)

From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.

January compared with December and February

DecemberJanuaryFebruary
Normal high53°F54°F59°F
Normal low28°F28°F32°F
Wet days566
Comfortable days229
Daylight9.7 h9.9 h10.8 h

Highs change by +1°F from December and +5°F into February.

Nearby alternatives in January

How St. George ranks in January

  • Normal high162nd warmest of 378 cities; 1st of 7 in Utah
  • Wet days54th driest of 378

What to pack for St. George in January

  • A warm jacket – lows near 28°F, highs near 54°F
  • Layers – afternoons near 54°F but nights near 28°F
  • A hat and gloves – about 20 freezing nights

Heating and cooling

January has 738 heating degree days and 0 cooling degree days (base 65°F), 13% of the year's total heating and cooling demand.

Questions

How cold is St. George in January?

The normal high is 54°F and the normal low is 28°F. From 1991 to 2020 the coldest January reading was 13°F (January 1, 1991).

Does it rain a lot in St. George in January?

About 6 days in January have at least 0.01 in of precipitation, and the normal total is 1.2 in. The wettest January in 1991-2020 was in 1993 (4.7 in); the driest was in 2002 (0.01 in).

Does it snow in St. George in January?

Yes. Normal snowfall in January is 0.5 in.

Is January a good time to visit St. George?

January ranks 7th of 12 months on our comfort score for St. George (48 out of 100). It has about 2 comfortable days (judged by temperature only). The best months are March and April.

Where the numbers come from

  • Temperature, rain, snowfall, snow depth and frost dates: St George (USC00427516), 1.6 mi NW of the city center, 2,857 ft (161 ft higher than the city). NOAA normals and daily records, 1991-2020.
  • Not available for this location: humidity and wind by hour, cloud cover and daily humidity and wind (no station close enough or similar enough in elevation).