West Valley, UT climate
West Valley has chilly, snowy winters and warm summers, with very little rain. A typical July afternoon reaches 92°, a January night drops to 23°, and about 52 inches of snow falls in a normal winter.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in West Valley feels like
Winter
Spring
Summer
Fall
West Valley 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 | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 38° | 23° | 1.1" | 12.7" | 10 | 16 | 20° – 38° |
| February | 44° | 27° | 1.1" | 10.7" | 10 | 9 | 29° – 44° |
| March | 54° | 35° | 1.4" | 5.9" | 9 | 3 | 39° – 50° |
| April | 61° | 40° | 1.8" | 2.9" | 10 | 1 | 45° – 57° |
| May | 72° | 48° | 1.8" | 0.1" | 9 | 0 | 53° – 64° |
| June | 83° | 57° | 0.9" | 0 | 5 | 0 | 63° – 76° |
| July | 92° | 66° | 0.5" | 0 | 4 | 0 | 70° – 83° |
| August | 90° | 64° | 0.6" | 0 | 5 | 0 | 71° – 81° |
| September | 80° | 54° | 1.1" | 0 | 5 | 0 | 63° – 71° |
| October | 65° | 42° | 1.3" | 0.5" | 7 | 0 | 46° – 59° |
| November | 50° | 32° | 1.1" | 7.0" | 8 | 3 | 33° – 47° |
| December | 39° | 24° | 1.2" | 12.1" | 10 | 13 | 24° – 37° |
| Year | 64° | 43° | 14.0" | 51.9" | 92 | 45 |
“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 West Valley
West Valley gets 14 inches of rain and melted snow a year. April is the wettest month and July the driest. Rain or snow falls on about 92 days a year. Snow covers the ground about 45 days of the year.
About 204 frost-free days a year
In half of years the last 32° night comes by April 8 and the first one by October 31. That leaves about 204 frost-free days for gardens, longer than 75% of U.S. towns.
Heating and cooling a home in West Valley
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In West Valley, 78% of that work is heating and 22% is cooling.
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.
West Valley and its neighbors
West Valley borders 6 towns with climate data. January nights across them vary by 1.1°. South Salt Lake has the coldest January nights (22°) and Magna the hottest July afternoons (93°). West Valley’s January low is 23° and its July high 92°.
Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value.
How West Valley 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 West Valley averaged 1.9° warmer than the 1900s. The biggest change is in March (+3.4°). The shift is larger than in 92% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at West Valley’s spot on NOAA’s grid
How much a month can swing
A normal is an average, and real years wander around it. January swings the most: between 1991 and 2020 its average temperature ranged from 20° to 38°. September is the most reliable, staying within 8°.
Common questions about West Valley’s climate
What is the coldest month in West Valley?
January, with a typical high of 38° and a low of 23°.
What is the hottest month in West Valley?
July, with a typical high of 92° and a low of 66°. About 62 days a year reach 90°.
How much snow does West Valley get?
About 52 inches in a normal winter, most of it in January.
When is the first frost in West Valley?
In half of years the first 32° night comes by October 31, and the last spring frost by April 8.
What is the rainiest month in West Valley?
April, with 1.8 inches of rain and melted snow. The year totals 14 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for West Valley itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Salt Lake City Intl Airport, UT (7 mi) away. Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.