West Valley City climate
West Valley City (Utah, United States) has a hot-summer continental (dry summer) climate (Köppen Dsa). The average temperature over the year is 12 °C54 °F, and about 542 mm21 in of precipitation falls in an average year.
Temperature by month
Precipitation by month
West Valley City climate table
| Month | High °C°F | Low °C°F | Mean °C°F | Precip. mmin |
|---|---|---|---|---|
| Jan | 338 | −622 | −130 | 562.2 |
| Feb | 642 | −327 | 134 | 471.8 |
| Mar | 1152 | 134 | 643 | 542.1 |
| Apr | 1660 | 440 | 1050 | 632.5 |
| May | 2271 | 1049 | 1660 | 542.1 |
| Jun | 2984 | 1559 | 2272 | 271.1 |
| Jul | 3594 | 2069 | 2781 | 190.7 |
| Aug | 3391 | 1966 | 2679 | 261.0 |
| Sep | 2781 | 1457 | 2069 | 381.5 |
| Oct | 1865 | 744 | 1254 | 441.7 |
| Nov | 1050 | 133 | 542 | 461.8 |
| Dec | 338 | −622 | −130 | 682.7 |
| Year | 3594 | −622 | 1254 | 54221 |
“Year” row: highest monthly high, lowest monthly low, annual mean and annual total.
| Month | Humid. | Cloud | Solar | Daylight |
|---|---|---|---|---|
| Jan | 80% | 63% | 2.1 | 9:34 |
| Feb | 73% | 63% | 3.1 | 10:36 |
| Mar | 64% | 60% | 4.4 | 11:49 |
| Apr | 58% | 56% | 5.7 | 13:15 |
| May | 51% | 53% | 6.8 | 14:26 |
| Jun | 41% | 36% | 7.8 | 15:04 |
| Jul | 37% | 38% | 7.4 | 14:49 |
| Aug | 36% | 38% | 6.6 | 13:47 |
| Sep | 40% | 33% | 5.4 | 12:24 |
| Oct | 50% | 42% | 3.9 | 11:02 |
| Nov | 62% | 53% | 2.5 | 9:51 |
| Dec | 78% | 64% | 1.8 | 9:16 |
Humid. = average relative humidity at 2 m; cloud = average cloud amount; solar = average daily solar energy reaching the ground in kWh/m² (all-sky); daylight in hours:minutes, calculated for the 15th of each month.
What the climate of West Valley City is like
The warmest month is July, with an average high of 35 °C94 °F and a low of 20 °C69 °F. The coldest is December, when highs average 3 °C38 °F and lows −6 °C22 °F. Seasons are strongly marked: the warmest month is on average 28.6 °C51.5 °F warmer than the coldest.
Annual precipitation is moderate at about 542 mm21 in. The wettest three-month stretch is December–February, which brings 32% of the annual total. Months with less than 20 mm0.8 in on average: July. The wettest month is December (68 mm2.7 in), the driest is July (19 mm0.7 in).
Relative humidity ranges from 36% in August to 80% in January. The clearest skies (lowest average cloud amount, 33%) are typical of September. Average wind speed near the ground ranges from 6 km/h (4 mph) in January to 8 km/h (5 mph) in April. Daylight lasts from about 9.3 hours in December to 15.1 hours in June.
Best time to visit West Valley City
Based on these averages, the most comfortable months for sightseeing and outdoor activities are May and June and September and October: average highs of 18 °C65 °F to 29 °C84 °F with 27 mm1.1 in to 54 mm2.1 in of precipitation per month.
The most challenging month is December, which is cold, with average highs of 3 °C38 °F.
Comfort score: months are ranked by how close they come to an average high of 21–28 °C (70–82 °F), lows above 5 °C (41 °F), little precipitation and moderate humidity. The best-ranked months of each place are recommended, even where none meets all of these. These are general rules of thumb applied to long-term averages.
What to pack for West Valley City
- Winter (December–February) — highs 338 to 6 °C42 °F, lows −622 to −3 °C27 °F, about 57 mm2.2 in of precipitation a month. Pack a warm coat, layers and closed shoes and shoes with good grip, as frost is common.
- Spring (March–May) — highs 1152 to 22 °C71 °F, lows 134 to 10 °C49 °F, about 57 mm2.2 in of precipitation a month. Pack long sleeves, a sweater and a medium jacket and an extra layer for the cooler mornings and evenings.
- Summer (June–August) — highs 2984 to 35 °C94 °F, lows 1559 to 20 °C69 °F, about 24 mm0.9 in of precipitation a month. Pack very light, breathable clothing, a sun hat and plenty of water.
- Autumn (September–November) — highs 1050 to 27 °C81 °F, lows 133 to 14 °C57 °F, about 43 mm1.7 in of precipitation a month. Pack light layers — T-shirts plus a light sweater or jacket and an extra layer for the cooler mornings and evenings.
How West Valley City compares
Compared with Salt Lake City, about 12 km to the northeast, West Valley City is on average 0.7 °C1.3 °F warmer and receives a similar amount of precipitation. The difference is largest in June (1.1 °C2 °F warmer).
Of the 222 places in the United States covered by World Climates, West Valley City is the 152nd warmest by annual mean temperature and the 160th wettest by annual precipitation. See all of them on the United States climate page.
Places in other countries with the most similar temperature and rainfall pattern: Taganrog (Russia, Dfa), Berdyansk (Ukraine, Dfa) and Mariupol (Ukraine, Dfa).
Nearby places
- West Jordan 11 km · 12 °C54 °F · 542 mm21 in
- Salt Lake City 12 km · 11 °C52 °F · 543 mm21 in
- Provo 59 km · 12 °C54 °F · 468 mm18 in
- Pocatello 245 km · 9 °C49 °F · 411 mm16 in
- Boise 475 km · 12 °C54 °F · 389 mm15 in
- Las Vegas 572 km · 21 °C69 °F · 147 mm5.8 in
- Boulder 575 km · 11 °C53 °F · 448 mm18 in
- Henderson 579 km · 21 °C70 °F · 147 mm5.8 in
Frequently asked questions
What is the warmest month in West Valley City?
July is the warmest month in West Valley City, with an average high of 35 °C (94 °F) and an average low of 20 °C (69 °F).
What is the coldest month in West Valley City?
December is the coldest month, with an average high of 3 °C (38 °F) and an average low of -6 °C (22 °F).
When does it rain the most in West Valley City?
December is the wettest month with about 68 mm (2.7 in) of precipitation; July is the driest with about 19 mm (0.7 in).
What is the best time to visit West Valley City?
Judging by long-term averages, the most comfortable months are May and June and September and October.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.
The grid cell’s average elevation is 1,745 m, while West Valley City lies at about 1,312 m. Temperatures on this page were therefore adjusted by +2.8 °C5.1 °F using the standard lapse rate of 6.5 °C per 1,000 m.