West Mountain, UT climate
West Mountain has chilly, snowy winters and hot summers, with very little rain. A typical July afternoon reaches 93°, a January night drops to 19°, and about 55 inches of snow falls in a normal winter.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in West Mountain feels like
Winter
Spring
Summer
Fall
West Mountain 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° | 19° | 1.6" | 13.4" | 8 | 20° – 36° |
| February | 45° | 23° | 1.5" | 13.3" | 7 | 29° – 42° |
| March | 55° | 31° | 1.5" | 6.9" | 8 | 38° – 48° |
| April | 63° | 36° | 2.0" | 3.3" | 8 | 45° – 56° |
| May | 73° | 44° | 1.7" | 0 | 7 | 52° – 63° |
| June | 85° | 53° | 0.8" | 0 | 4 | 62° – 75° |
| July | 93° | 60° | 0.6" | 0 | 3 | 70° – 80° |
| August | 91° | 59° | 0.7" | 0 | 4 | 70° – 79° |
| September | 81° | 49° | 1.1" | 0.1" | 5 | 61° – 69° |
| October | 66° | 38° | 1.5" | 0.8" | 6 | 45° – 58° |
| November | 51° | 28° | 1.3" | 5.6" | 6 | 31° – 47° |
| December | 39° | 20° | 1.4" | 11.7" | 8 | 23° – 34° |
| Year | 65° | 38° | 15.6" | 55.1" | 74 |
“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 Mountain
West Mountain gets 16 inches of rain and melted snow a year. April is the wettest month and July the driest. Rain or snow falls on about 74 days a year.
About 157 frost-free days a year
In half of years the last 32° night comes by May 4 and the first one by October 11. That leaves about 157 frost-free days for gardens, shorter than 74% of U.S. towns.
Heating and cooling a home in West Mountain
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In West Mountain, 87% of that work is heating and 13% 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.
West Mountain and its neighbors
West Mountain borders 4 towns with climate data. January nights across them vary by 0.9°. Genola has both the coldest January nights (19°) and the hottest July afternoons (93°). West Mountain’s January low is 19° and its July high 93°.
Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value.
How West Mountain 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 Mountain averaged 1.4° warmer than the 1900s. The biggest change is in March (+2.8°). The shift is larger than in 61% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at West Mountain’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 36°. September is the most reliable, staying within 9°.
Common questions about West Mountain’s climate
What is the coldest month in West Mountain?
January, with a typical high of 38° and a low of 19°.
What is the hottest month in West Mountain?
July, with a typical high of 93° and a low of 60°. About 50 days a year reach 90°.
How much snow does West Mountain get?
About 55 inches in a normal winter, most of it in January.
When is the first frost in West Mountain?
In half of years the first 32° night comes by October 11, and the last spring frost by May 4.
What is the rainiest month in West Mountain?
April, with 2.0 inches of rain and melted snow. The year totals 16 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for West Mountain itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Santaquin Chlorinator, UT (7 mi) away. Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.