West Valley City, Utah climate: NOAA's gridded normals for the city, beside the nearest station records
NOAA's gridded 1991-2020 normals put West Valley City's center at January lows of 23°F and July highs of 92°F, a yearly mean of 53.2°F and 14.0 inches of precipitation. No NOAA station keeps a record under the city's name. The nearest station record, Salt Lake City (7 miles N, 4,225 ft), has January lows of 24°F and July highs of 94°F.
138,144 people (Census Bureau 2024). Distances and directions are from the city's center.
- Jan 38° 23°
- Feb 44° 27°
- Mar 54° 35°
- Apr 61° 40°
- May 72° 48°
- Jun 83° 57°
- Jul 92° 66°
- Aug 90° 64°
- Sep 80° 54°
- Oct 65° 42°
- Nov 50° 32°
- Dec 39° 24°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
The months above are NOAA's gridded normals at West Valley City's center.
What is each month like in West Valley City?
NOAA's grid estimates the normals every 5 km or so from the stations around each point, terrain included. It smooths between stations, so night lows at the heart of a large city can run warmer than the grid shows: at five big-city airports we compared, the grid's highs were within about 1°F of the station and its lows 1-6°F cooler. The nearest record's high and low are beside each month.
| Month | High | Low | Mean | Precip. | Salt Lake City high | Salt Lake City low |
|---|---|---|---|---|---|---|
| January | 38°F | 23°F | 30.7°F | 1.13 | 39°F | 24°F |
| February | 44°F | 27°F | 35.8°F | 1.14 | 45°F | 29°F |
| March | 54°F | 35°F | 44.3°F | 1.38 | 55°F | 36°F |
| April | 61°F | 40°F | 50.3°F | 1.80 | 62°F | 42°F |
| May | 72°F | 48°F | 60.0°F | 1.80 | 73°F | 50°F |
| June | 83°F | 57°F | 70.0°F | 0.91 | 84°F | 59°F |
| July | 92°F | 66°F | 78.9°F | 0.53 | 94°F | 68°F |
| August | 90°F | 64°F | 76.7°F | 0.62 | 92°F | 67°F |
| September | 80°F | 54°F | 66.7°F | 1.06 | 81°F | 56°F |
| October | 65°F | 42°F | 53.1°F | 1.34 | 66°F | 44°F |
| November | 50°F | 32°F | 40.9°F | 1.11 | 51°F | 33°F |
| December | 39°F | 24°F | 31.3°F | 1.19 | 39°F | 25°F |
In metric: a yearly mean of 11.8°C, January lows of −5°C, July highs of 33°C and 356 mm of precipitation a year.
Source: NOAA NCEI U.S. Monthly Gridded Climate Normals 1991-2020 (nClimGrid, accession 0245564); NOAA NCEI 1991-2020 station normals. The grid cell holding the city's Census center point.
What do the station records around West Valley City say?
Each row is a NOAA station's own 1991-2020 normals, with the snow and frost dates the grid does not give. A record downhill or nearer the coast than the city can run warmer, one uphill cooler: compare the elevations.
| Record | Where | Elevation | Year | Jan low | Jul high | Precip. | Snow | Last frost |
|---|---|---|---|---|---|---|---|---|
| Salt Lake CitySalt Lake City International Airport | 7 mi N | 4,225 ft | 54.7°F | 24°F | 94°F | 15.5 | 52 | April 8 |
| Salt Lake Triad Center | 8 mi NE | 4,280 ft | 55.8°F | 28°F | 91°F | 17.7 | 49 | March 31 |
| Garfield | 10 mi W | 4,298 ft | 54.4°F | 25°F | 91°F | 17.7 | 23 | April 3 |
Source: NOAA NCEI 1991-2020 U.S. Climate Normals; place center and population: Census Bureau 2024. Last frost: the median last spring date of 32°F.
How much snow, how late a frost, what zone and how much sun in West Valley City?
NOAA's grid gives no snow, frost dates or records, so these come from the nearest station record, Salt Lake City (7 miles N, 4,225 ft). It gets 52 inches of snow in a normal year. The last spring frost (32°F) comes after April 8 in half of years and the first autumn frost before October 31. Its record high is 109°F (2026) and its record low −30°F (1933), on the National Weather Service's long record for the area (kept since 1874).
The USDA's 2023 Plant Hardiness Zone Map puts West Valley City in zone 7b across its 4 ZIP code areas.
Over a year 80% of the sunlight that would reach the ground under clear skies gets through the clouds in the area (4.8 kWh per square metre a day, NASA POWER 2001-2020); July is the sunniest month (88%) and December the cloudiest (67%).
Salt Lake City's page has its months, frost probabilities, records by month and recent years. NOAA's grid has monthly figures only, so there are no day-by-day month pages for West Valley City; the nearest record's month pages have them.
Source: NOAA NCEI 1991-2020 normals, station USW00024127; records: ACIS; USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026; sunshine: NASA POWER.
How does the climate vary across West Valley City, ZIP code by ZIP code?
4 ZIP code areas lie wholly or partly in West Valley City. On NOAA's grid 84120 is the warmest (53.2°F a year) and 84118 the coolest (52.7°F), a spread of 0.5°F. Each row also names the nearest station record and its frost dates.
| ZIP code | Zone | Year | Jan low | Jul high | Precip. | Nearest record | Last frost | First frost |
|---|---|---|---|---|---|---|---|---|
| 84118 | 7b | 52.7°F | 23°F | 91°F | 15.5 | Salt Lake City (9 mi) | April 8 | October 31 |
| 84119 | 7b | 53.1°F | 23°F | 92°F | 13.9 | Salt Lake City (6 mi) | April 8 | October 31 |
| 84120 | 7b | 53.2°F | 23°F | 92°F | 14.0 | Salt Lake City (6 mi) | April 8 | October 31 |
| 84128 | 7b | 53.1°F | 23°F | 92°F | 14.8 | Salt Lake City (6 mi) | April 8 | October 31 |
Source: Census Bureau 2020 ZCTA-to-place relationship file and ZCTA centers; NOAA NCEI gridded and station normals, 1991-2020. A ZIP area counts when at least a tenth of its land (and 0.5 km²) is in the city; its figures are the grid cell at its center; frost dates are the nearest record's medians of 32°F.