South Jordan, UT climate
South Jordan has chilly, snowy winters and warm summers, with very little rain. A typical July afternoon reaches 91°, a January night drops to 22°, and about 82 inches of snow falls in a normal winter.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in South Jordan feels like
Winter
Spring
Summer
Fall
South Jordan weather by month
Average highs, lows, rain and snow for every month, from NOAA’s 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | 30-yr range |
|---|---|---|---|---|---|---|
| January | 38° | 22° | 1.1" | 17.0" | 9 | 23° – 37° |
| February | 44° | 25° | 1.3" | 18.4" | 8 | 29° – 42° |
| March | 53° | 33° | 1.4" | 7.6" | 9 | 38° – 49° |
| April | 60° | 38° | 1.8" | 5.6" | 10 | 44° – 55° |
| May | 71° | 46° | 1.8" | 0.3" | 9 | 52° – 63° |
| June | 82° | 55° | 0.9" | 0 | 5 | 62° – 75° |
| July | 91° | 63° | 0.5" | 0 | 3 | 68° – 81° |
| August | 89° | 61° | 0.8" | 0 | 5 | 71° – 79° |
| September | 79° | 52° | 1.2" | 0 | 6 | 62° – 69° |
| October | 64° | 40° | 1.4" | 1.5" | 8 | 45° – 58° |
| November | 50° | 30° | 1.2" | 8.2" | 8 | 32° – 47° |
| December | 39° | 22° | 1.3" | 23.3" | 9 | 25° – 35° |
| Year | 63° | 41° | 14.5" | 81.9" | 89 |
“Wet days” have at least 0.01" of rain or melted snow. “Snow on ground” counts days with 1" or more. The 30-year range is the coldest and warmest that month’s average temperature got between 1991 and 2020.
Rain and snow in South Jordan
South Jordan gets 15 inches of rain and melted snow a year. May is the wettest month and July the driest. Rain or snow falls on about 89 days a year.
About 174 frost-free days a year
In half of years the last 32° night comes by April 29 and the first one by October 22. That leaves about 174 frost-free days for gardens, shorter than 56% of U.S. towns.
Heating and cooling a home in South Jordan
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In South Jordan, 82% of that work is heating and 18% is cooling, so the furnace matters far more than the air conditioner.
Degree days measure how far each day’s average temperature falls below or rises above 65°, added up over a year. Source: NOAA station normals.
South Jordan and its neighbors
South Jordan borders 5 towns with climate data. January nights across them vary by 2.0°. Riverton has the coldest January nights (21°) and Sandy the hottest July afternoons (91°). South Jordan’s January low is 22° and its July high 91°.
Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value.
How South Jordan compares
Compared with every U.S. town and city on TownTapestry, each counted once.
Warmer than it used to be
The last 30 years in South Jordan averaged 1.7° warmer than the 1900s. The biggest change is in March (+3.2°). The shift is larger than in 81% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at South Jordan’s spot on NOAA’s grid
How much a month can swing
A normal is an average, and real years wander around it. November swings the most: between 1991 and 2020 its average temperature ranged from 32° to 47°. September is the most reliable, staying within 8°.
Common questions about South Jordan’s climate
What is the coldest month in South Jordan?
January, with a typical high of 38° and a low of 22°.
What is the hottest month in South Jordan?
July, with a typical high of 91° and a low of 63°. About 48 days a year reach 90°.
How much snow does South Jordan get?
About 82 inches in a normal winter, most of it in December.
When is the first frost in South Jordan?
In half of years the first 32° night comes by October 22, and the last spring frost by April 29.
What is the rainiest month in South Jordan?
May, with 1.8 inches of rain and melted snow. The year totals 15 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for South Jordan itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Cottonwood Weir, UT (12 mi) away. Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.