Photo: Ntsimp · Public domainLess rain and snow falls on Tooele than on 92% of U.S. towns: 16 inches a year
Midsummer highs settle at about 91°. In July, afternoons here are warmer than in 83% of U.S. towns. Decade by decade the climate has edged up, 1.3° above 1901–2000. Garden planting can start around May 2; autumn frost returns near October 16.
A year in Tooele at a glance
Each month’s typical high and low, and what it brings.
What stands out about Tooele’s climate
Compared with towns across the U.S., with Tooele’s place in Utah beside it.
What a year in Tooele feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 165 frost-free days a year
In half of years the last 32° night comes by May 2 and the first by October 16. Frost and day counts come from NOAA’s station at Tooele, UT, 0.8 miles from the town’s center, at about the same height.
The 2023 USDA map puts Tooele’s center in zone 7a: the coldest night of a typical winter, averaged over 1991–2020, reaches about 3°. Plant labels use the zone; frost dates tell you when to plant.
Freezing nights by month
Average nights at or below 32°
90° days by month
Average days at 90° or more
About 75 inches of snow a winter
Snow, measured at Tooele, UT, falls mostly in December. Precipitation (rain plus melted snow) adds up to 16 inches a year; May is the wettest month and July the driest. Rain or snow falls on about 87 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
Heating and cooling a home in Tooele
84% of the work is heating. Months averaging under 55° run from October through April.
Degree days add up how far each day’s average falls below (heating) or rises above (cooling) 65° over a year. NOAA normals at Tooele, UT.
Living with Tooele’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
165 frost-free days in zone 7a. The last frost comes by May 2 in half of years, so many gardeners wait a week or two past that to set out tomatoes. The first fall frost comes by Oct 16.
Months with highs of 62–84° and lows of 40° or more: May, June and September. 28 miles of trails are waiting.
Parks & trails →Of the yearly building losses FEMA expects in Tooele from natural hazards, earthquakes are the largest share (25%); heat waves, cold waves, winter storms and ice storms together are 15%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Tooele and its neighbors
Erda the hottest July afternoons (93°, 2° warmer). Differences under a degree are within what the 5 km grid can tell apart. Tap a town to see its climate.
Climates most like Tooele’s, farther away
TownRatings’ own comparison of NOAA 1991–2020 normals, not a NOAA product: places of 5,000+ at least 150 miles away, one per state, closest on January low, July high, precipitation and snow.
| Town | Jan. low | July high | Precip. | Snow |
|---|---|---|---|---|
| Tooele, UT | 21° | 91° | 16" | 75" |
| Thornton, CO | 18° | 90° | 14" | 74" |
| Casper, WY | 15° | 89° | 12" | 82" |
| Chadron, NE | 14° | 89° | 18" | 50" |
| Pocatello, ID | 19° | 87° | 15" | 64" |
Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value. Snow and frost-free days come from the nearest weather station, so neighbors often share them.
Warmer than it used to be
The last 30 years in Tooele averaged 1.3° warmer than the 1900s. The biggest change is in March (+2.7°).
A smaller shift than in 52% of U.S. towns.
Change by month
The two periods overlap (1991–2000 is in both), which makes the gap a little smaller than it would be between separate periods.
How Tooele compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Tooele’s place among Utah’s.
Tooele weather by month
Highs, lows and precipitation from NOAA’s grid at Tooele’s center; snow, wet days and snow on the ground from Tooele, UT. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 38° | 21° | 1.3" | 14.0" | 8 | 21 | 22° – 37° |
| February | 44° | 24° | 1.4" | 14.6" | 8 | 15 | 28° – 41° |
| March | 53° | 32° | 1.7" | 11.1" | 9 | 5 | 38° – 48° |
| April | 59° | 37° | 1.9" | 5.9" | 10 | 1 | 43° – 56° |
| May | 70° | 46° | 2.0" | 0.4" | 9 | 0 | 51° – 63° |
| June | 82° | 54° | 1.0" | 0.0" | 5 | 0 | 61° – 74° |
| July | 91° | 63° | 0.8" | 0.0" | 5 | 0 | 69° – 82° |
| August | 89° | 61° | 0.8" | 0.0" | 6 | 0 | 70° – 78° |
| September | 78° | 51° | 1.1" | 0.0" | 6 | 0 | 60° – 69° |
| October | 63° | 39° | 1.4" | 1.9" | 7 | 1 | 42° – 57° |
| November | 49° | 29° | 1.3" | 10.2" | 7 | 6 | 31° – 46° |
| December | 39° | 21° | 1.3" | 17.2" | 9 | 20 | 25° – 34° |
| Year | 63° | 40° | 15.8" | 75.3" | 87 | 69 |
How much a month can swing
A normal is an average. November swings the most: from 1991 to 2020 its average ranged from 31° to 46°. August is the most reliable, staying within 8°.
Where Tooele’s numbers come from
Normals are 30-year averages, not a forecast. How TownRatings reads climate data →
- Temperatures and precipitation: NOAA’s gridded 1991–2020 normals for the 5 km cell at Tooele’s center.
- Snow: Tooele, UT (NOAA station in town).
- Frost, freezing nights, 90° and 100° days, heating and cooling: Tooele, UT, 0.8 miles from the town’s center, at about the same height; the nearest station that passes our checks for distance, height and agreement with the grid.
- Growing zone: USDA Plant Hardiness Zone Map, 2023. USDA Agricultural Research Service and PRISM Group, Oregon State University, prism.oregonstate.edu/phzm, accessed 8 Oct 2026.
- Then and now: NOAA’s gridded normals for 1901–2000 at the same cell.
- Storms and extremes: FEMA National Risk Index (expected annual losses to buildings).
Common questions about Tooele’s climate
What is the weather like in Tooele?
A typical July afternoon reaches 91°, a January night drops to 21°, and about 75 inches of snow falls in a normal winter. Colder January nights than 56% of U.S. towns; hotter July afternoons than 83% of U.S. towns.
How cold does it get in Tooele in winter?
January nights average 21°. About 128 nights a year reach 32° or below. In the coldest January of the last 30 years the month averaged 22°.
How much snow does Tooele get?
About 75 inches in a normal winter at Tooele, UT, most of it in December, with snow on the ground about 69 days a year.
How hot does it get in Tooele?
July, with a typical high of 91° and a low of 63°. About 56 days a year reach 90° and 5 reach 100° (Tooele, UT).
When is the first and last frost in Tooele?
In half of years the last spring frost (32°) comes by May 2 and the first fall frost by October 16, about 165 frost-free days, at Tooele, UT.
What growing zone is Tooele in?
Zone 7a on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about 3°.
What is the best time of year to visit Tooele?
By one simple rule (highs of 62–84° and lows of 40° or more), May, June and September. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is Tooele getting warmer?
Yes: 1991–2020 averaged 1.3° warmer than 1901–2000 on NOAA’s grid. A smaller shift than 52% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Tooele.
Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000; USDA/PRISM 2023 hardiness zones; FEMA National Risk Index. Today’s forecast: National Weather Service.