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Climate and Average Weather Year Round in Tooele Utah, United States

In Tooele, the summers are hot and mostly clear, the winters are freezing and partly cloudy, and it is dry year round. Over the course of the year, the temperature typically varies from 20°F to 90°F and is rarely below 7°F or above 96°F.

Based on the tourism score, the best time of year to visit Tooele for warm-weather activities is from late June to early September.

Climate in Tooele

very coldcoldcoolwarmhotwarmcoolcoldvery coldJanFebMarAprMayJunJulAugSepOctNovDecNowNow80%80%47%47%clearovercastprecipitation: 1.5 inprecipitation: 1.5 in0.4 in0.4 inmuggy: 0%muggy: 0%0%0%drydrytourism score: 7.9tourism score: 7.90.00.0
Tooele weather by month. Click on each chart for more information.

Average Temperature in Tooele

The hot season lasts for 3.1 months, from June 8 to September 12, with an average daily high temperature above 78°F. The hottest day of the year is July 24, with an average high of 90°F and low of 65°F.

The cold season lasts for 3.0 months, from November 22 to February 22, with an average daily high temperature below 43°F. The coldest day of the year is January 7, with an average low of 20°F and high of 32°F.

Average High and Low Temperature in Tooele

Average High and Low Temperature in TooelehotcoldcoldJanFebMarAprMayJunJulAugSepOctNovDec0°F0°F10°F10°F20°F20°F30°F30°F40°F40°F50°F50°F60°F60°F70°F70°F80°F80°F90°F90°F100°F100°FJan 732°FJan 732°FJul 2490°FJul 2490°F20°F20°F65°F65°FJun 878°FJun 878°FSep 1278°FSep 1278°FNov 2243°FNov 2243°FFeb 2243°FFeb 2243°F54°F54°F55°F55°F29°F29°F28°F28°FNowNow
The daily average high (red line) and low (blue line) temperature, with 25th to 75th and 10th to 90th percentile bands. The thin dotted lines are the corresponding average perceived temperatures.

The figure below shows you a compact characterization of the entire year of hourly average temperatures. The horizontal axis is the day of the year, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day.

Average Hourly Temperature in Tooele

Average Hourly Temperature in TooeleJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMNowNowfreezingfreezingvery coldvery coldcoldcoldcoolcoolcomfortablewarmhot
frigid 15°F freezing 32°F very cold 45°F cold 55°F cool 65°F comfortable 75°F warm 85°F hot 95°F sweltering
The average hourly temperature, color coded into bands. The shaded overlays indicate night and civil twilight.

Baskil, Turkey (6,683 miles away) and Çalxanqala, Azerbaijan (6,741 miles) are the far-away foreign places with temperatures most similar to Tooele (view comparison).

Compare Tooele to another city:

Clouds

In Tooele, the average percentage of the sky covered by clouds experiences significant seasonal variation over the course of the year.

The clearer part of the year in Tooele begins around May 31 and lasts for 4.8 months, ending around October 26. On August 19, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 80% of the time, and overcast or mostly cloudy 20% of the time.

The cloudier part of the year begins around October 26 and lasts for 7.2 months, ending around May 31. On March 3, the cloudiest day of the year, the sky is overcast or mostly cloudy 53% of the time, and clear, mostly clear, or partly cloudy 47% of the time.

Cloud Cover Categories in Tooele

Cloud Cover Categories in TooeleclearercloudiercloudierJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%Aug 1980%Aug 1980%Mar 347%Mar 347%May 3164%May 3164%Oct 2664%Oct 2664%NowNowclearmostly clearpartly cloudyovercast
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
The percentage of time spent in each cloud cover band, categorized by the percentage of the sky covered by clouds.

Precipitation

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days in Tooele varies throughout the year.

The wetter season lasts 8.8 months, from September 15 to June 9, with a greater than 15% chance of a given day being a wet day. The chance of a wet day peaks at 24% on May 3.

The drier season lasts 3.2 months, from June 9 to September 15. The smallest chance of a wet day is 6% on July 4.

Among wet days, we distinguish between those that experience rain alone, snow alone, or a mixture of the two. Based on this categorization, the most common form of precipitation in Tooele changes throughout the year.

Rain alone is the most common for 11 months, from January 22 to December 21. The highest chance of a day with rain alone is 23% on May 3.

Snow alone is the most common for 1.1 months, from December 21 to January 22. The highest chance of a day with snow alone is 7% on January 1.

Daily Chance of Precipitation in Tooele

Daily Chance of Precipitation in TooelerainJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%May 324%May 324%Jul 46%Jul 46%Jan 2216%Jan 2216%Dec 2117%Dec 2117%Sep 1515%Sep 1515%Jun 915%Jun 915%NowNowrainsnow
The percentage of days in which various types of precipitation are observed, excluding trace quantities: rain alone, snow alone, and mixed (both rain and snow fell in the same day).

Rainfall

To show variation within the months and not just the monthly totals, we show the rainfall accumulated over a sliding 31-day period centered around each day of the year. Tooele experiences some seasonal variation in monthly rainfall.

The rainy period of the year lasts for 11 months, from August 9 to June 28, with a sliding 31-day rainfall of at least 0.5 inches. The most rain falls during the 31 days centered around May 10, with an average total accumulation of 1.5 inches.

The rainless period of the year lasts for 1.4 months, from June 28 to August 9. The least rain falls around July 12, with an average total accumulation of 0.4 inches.

Average Monthly Rainfall in Tooele

Average Monthly Rainfall in TooelerainrainJanFebMarAprMayJunJulAugSepOctNovDec0.0 in0.0 in0.5 in0.5 in1.0 in1.0 in1.5 in1.5 in2.0 in2.0 in2.5 in2.5 in3.0 in3.0 in3.5 in3.5 inMay 101.5 inMay 101.5 inJul 120.4 inJul 120.4 inOct 51.2 inOct 51.2 inJan 160.6 inJan 160.6 inAug 90.5 inAug 90.5 inNowNow
The average rainfall (solid line) accumulated over the course of a sliding 31-day period centered on the day in question, with 25th to 75th and 10th to 90th percentile bands. The thin dotted line is the corresponding average liquid-equivalent snowfall.

Snowfall

We report snowfall in liquid-equivalent terms. The actual depth of new snowfall is typically between 5 and 10 times the liquid-equivalent amount, assuming the ground is frozen. Colder, drier snow tends to be on the higher end of that range and warmer, wetter snow on the lower end.

As with rainfall, we consider the snowfall accumulated over a sliding 31-day period centered around each day of the year. Tooele experiences some seasonal variation in monthly liquid-equivalent snowfall.

The snowy period of the year lasts for 5.2 months, from November 2 to April 9, with a sliding 31-day liquid-equivalent snowfall of at least 0.1 inches. The most snow falls during the 31 days centered around December 26, with an average total liquid-equivalent accumulation of 0.6 inches.

The snowless period of the year lasts for 6.8 months, from April 9 to November 2. The least snow falls around July 24, with an average total liquid-equivalent accumulation of 0.0 inches.

Average Liquid-Equivalent Monthly Snowfall in Tooele

Average Liquid-Equivalent Monthly Snowfall in TooelesnowsnowJanFebMarAprMayJunJulAugSepOctNovDec0.0 in0.0 in0.5 in0.5 in1.0 in1.0 in1.5 in1.5 inDec 260.6 inDec 260.6 inJul 240.0 inJul 240.0 inNov 20.1 inNov 20.1 inApr 90.1 inApr 90.1 inNowNow
The average liquid-equivalent snowfall (solid line) accumulated over the course of a sliding 31-day period centered on the day in question, with 25th to 75th and 10th to 90th percentile bands. The thin dotted line is the corresponding average rainfall.

Sun

The length of the day in Tooele varies significantly over the course of the year. In 2021, the shortest day is December 21, with 9 hours, 16 minutes of daylight; the longest day is June 20, with 15 hours, 5 minutes of daylight.

Hours of Daylight and Twilight in Tooele

Hours of Daylight and Twilight in TooeleJanFebMarAprMayJunJulAugSepOctNovDec0 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hr12 hr, 7 minMar 2012 hr, 7 minMar 2015 hr, 5 minJun 2015 hr, 5 minJun 2012 hr, 9 minSep 2212 hr, 9 minSep 229 hr, 16 minDec 219 hr, 16 minDec 21nightnightdayNowNow
The number of hours during which the Sun is visible (black line). From bottom (most yellow) to top (most gray), the color bands indicate: full daylight, twilight (civil, nautical, and astronomical), and full night.

The earliest sunrise is at 5:58 AM on June 13, and the latest sunrise is 2 hours, 7 minutes later at 8:05 AM on November 6. The earliest sunset is at 5:02 PM on December 8, and the latest sunset is 4 hours, 2 minutes later at 9:03 PM on June 27.

Daylight saving time (DST) is observed in Tooele during 2021, starting in the spring on March 14, lasting 7.8 months, and ending in the fall on November 7.

Sunrise & Sunset with Twilight and Daylight Saving Time in Tooele

Sunrise & Sunset with Twilight and Daylight Saving Time in TooeleJanFebMarAprMayJunJulAugSepOctNovDec2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMJun 135:58 AMJun 135:58 AM9:03 PMJun 279:03 PMJun 27Dec 85:02 PMDec 85:02 PM8:05 AMNov 68:05 AMNov 6Mar 14DSTMar 14DSTDSTNov 7DSTNov 7daynightnightnightnightSolarMidnightSolarMidnightSolarNoonSunriseSunsetNowNow
The solar day over the course of the year 2021. From bottom to top, the black lines are the previous solar midnight, sunrise, solar noon, sunset, and the next solar midnight. The day, twilights (civil, nautical, and astronomical), and night are indicated by the color bands from yellow to gray. The transitions to and from daylight saving time are indicated by the 'DST' labels.

Moon

The figure below presents a compact representation of key lunar data for 2021. The horizontal axis is the day, the vertical axis is the hour of the day, and the colored areas indicate when the moon is above the horizon. The vertical gray bars (new Moons) and blue bars (full Moons) indicate key Moon phases.

Moon Rise, Set & Phases in Tooele

The time in which the moon is above the horizon (light blue area), with new moons (dark gray lines) and full moons (blue lines) indicated. The shaded overlays indicate night and civil twilight.

Humidity

We base the humidity comfort level on the dew point, as it determines whether perspiration will evaporate from the skin, thereby cooling the body. Lower dew points feel drier and higher dew points feel more humid. Unlike temperature, which typically varies significantly between night and day, dew point tends to change more slowly, so while the temperature may drop at night, a muggy day is typically followed by a muggy night.

The perceived humidity level in Tooele, as measured by the percentage of time in which the humidity comfort level is muggy, oppressive, or miserable, does not vary significantly over the course of the year, remaining a virtually constant 0% throughout.

Humidity Comfort Levels in Tooele

Humidity Comfort Levels in TooeleJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%Feb 40%Feb 40%Aug 60%Aug 60%NowNowdrydry
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The percentage of time spent at various humidity comfort levels, categorized by dew point.

Wind

This section discusses the wide-area hourly average wind vector (speed and direction) at 10 meters above the ground. The wind experienced at any given location is highly dependent on local topography and other factors, and instantaneous wind speed and direction vary more widely than hourly averages.

The average hourly wind speed in Tooele experiences mild seasonal variation over the course of the year.

The windier part of the year lasts for 4.7 months, from February 21 to July 12, with average wind speeds of more than 7.0 miles per hour. The windiest day of the year is April 5, with an average hourly wind speed of 8.0 miles per hour.

The calmer time of year lasts for 7.3 months, from July 12 to February 21. The calmest day of the year is January 21, with an average hourly wind speed of 5.9 miles per hour.

Average Wind Speed in Tooele

Average Wind Speed in TooelewindyJanFebMarAprMayJunJulAugSepOctNovDec0 mph0 mph2 mph2 mph4 mph4 mph6 mph6 mph8 mph8 mph10 mph10 mph12 mph12 mph14 mph14 mphApr 58.0 mphApr 58.0 mphJan 215.9 mphJan 215.9 mphJul 127.0 mphJul 127.0 mphNowNow
The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands.

The predominant average hourly wind direction in Tooele varies throughout the year.

The wind is most often from the north for 4.1 weeks, from April 21 to May 20, with a peak percentage of 31% on May 10. The wind is most often from the south for 11 months, from May 20 to April 21, with a peak percentage of 50% on January 1.

Wind Direction in Tooele

Wind Direction in TooeleSNSJanFebMarAprMayJunJulAugSepOctNovDec0%100%20%80%40%60%60%40%80%20%100%0%NowNowwestsouthnortheast
northeastsouthwest
The percentage of hours in which the mean wind direction is from each of the four cardinal wind directions, excluding hours in which the mean wind speed is less than 1.0 mph. The lightly tinted areas at the boundaries are the percentage of hours spent in the implied intermediate directions (northeast, southeast, southwest, and northwest).

Best Time of Year to Visit

To characterize how pleasant the weather is in Tooele throughout the year, we compute two travel scores.

The tourism score favors clear, rainless days with perceived temperatures between 65°F and 80°F. Based on this score, the best time of year to visit Tooele for general outdoor tourist activities is from late June to early September, with a peak score in the second week of August.

Tourism Score in Tooele

Tourism Score in Tooelebest timeJanFebMarAprMayJunJulAugSepOctNovDec002244668810107.97.90.00.0NowNowprecipitationprecipitationcloudsclouds tourism score
The tourism score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

The beach/pool score favors clear, rainless days with perceived temperatures between 75°F and 90°F. Based on this score, the best time of year to visit Tooele for hot-weather activities is from early July to mid August, with a peak score in the last week of July.

Beach/Pool Score in Tooele

Beach/Pool Score in Tooelebest timeJanFebMarAprMayJunJulAugSepOctNovDec002244668810105.95.90.00.0NowNowprecipitationprecipitationcloudsclouds beach/pool score
The beach/pool score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

Methodology

For each hour between 8:00 AM and 9:00 PM of each day in the analysis period (1980 to 2016), independent scores are computed for perceived temperature, cloud cover, and total precipitation. Those scores are combined into a single hourly composite score, which is then aggregated into days, averaged over all the years in the analysis period, and smoothed.

Our cloud cover score is 10 for fully clear skies, falling linearly to 9 for mostly clear skies, and to 1 for fully overcast skies.

Our precipitation score, which is based on the three-hour precipitation centered on the hour in question, is 10 for no precipitation, falling linearly to 9 for trace precipitation, and to 0 for 0.04 inches of precipitation or more.

Our tourism temperature score is 0 for perceived temperatures below 50°F, rising linearly to 9 for 65°F, to 10 for 75°F, falling linearly to 9 for 80°F, and to 1 for 90°F or hotter.

Our beach/pool temperature score is 0 for perceived temperatures below 65°F, rising linearly to 9 for 75°F, to 10 for 82°F, falling linearly to 9 for 90°F, and to 1 for 100°F or hotter.

Growing Season

Definitions of the growing season vary throughout the world, but for the purposes of this report, we define it as the longest continuous period of non-freezing temperatures (≥ 32°F) in the year (the calendar year in the Northern Hemisphere, or from July 1 until June 30 in the Southern Hemisphere).

The growing season in Tooele typically lasts for 6.0 months (182 days), from around April 23 to around October 22, rarely starting before March 31 or after May 12, and rarely ending before October 4 or after November 9.

Time Spent in Various Temperature Bands and the Growing Season in Tooele

Time Spent in Various Temperature Bands and the Growing Season in Tooelegrowing seasonJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%50%Apr 2350%Apr 2350%Oct 2250%Oct 2290%May 1290%May 1290%Oct 490%Oct 410%Mar 3110%Mar 3110%Nov 910%Nov 90%Dec 150%Dec 15Jul 24100%Jul 24100%frigidfreezingvery coldcoldcomfortablewarmhotcool
frigid 15°F freezing 32°F very cold 45°F cold 55°F cool 65°F comfortable 75°F warm 85°F hot 95°F sweltering
The percentage of time spent in various temperature bands. The black line is the percentage chance that a given day is within the growing season.

Growing degree days are a measure of yearly heat accumulation used to predict plant and animal development, and defined as the integral of warmth above a base temperature, discarding any excess above a maximum temperature. In this report, we use a base of 50°F and a cap of 86°F.

Based on growing degree days alone, the first spring blooms in Tooele should appear around April 16, only rarely appearing before April 2 or after May 1.

Growing Degree Days in Tooele

Growing Degree Days in TooeleJanFebMarAprMayJunJulAugSepOctNovDec0°F0°F500°F500°F1,000°F1,000°F1,500°F1,500°F2,000°F2,000°F2,500°F2,500°F3,000°F3,000°FApr 1689°FApr 1689°FJun 26900°FJun 26900°FAug 21,800°FAug 21,800°FDec 313,064°FDec 313,064°FNowNow
The average growing degree days accumulated over the course of the year, with 25th to 75th and 10th to 90th percentile bands.

Solar Energy

This section discusses the total daily incident shortwave solar energy reaching the surface of the ground over a wide area, taking full account of seasonal variations in the length of the day, the elevation of the Sun above the horizon, and absorption by clouds and other atmospheric constituents. Shortwave radiation includes visible light and ultraviolet radiation.

The average daily incident shortwave solar energy experiences extreme seasonal variation over the course of the year.

The brighter period of the year lasts for 3.0 months, from May 14 to August 15, with an average daily incident shortwave energy per square meter above 7.2 kWh. The brightest day of the year is June 29, with an average of 8.4 kWh.

The darker period of the year lasts for 3.5 months, from October 31 to February 15, with an average daily incident shortwave energy per square meter below 3.4 kWh. The darkest day of the year is December 21, with an average of 2.2 kWh.

Average Daily Incident Shortwave Solar Energy in Tooele

Average Daily Incident Shortwave Solar Energy in TooelebrightdarkdarkJanFebMarAprMayJunJulAugSepOctNovDec0 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWh8 kWh8 kWh9 kWh9 kWh10 kWh10 kWhJun 298.4 kWhJun 298.4 kWhDec 212.2 kWhDec 212.2 kWhMay 147.2 kWhMay 147.2 kWhAug 157.2 kWhAug 157.2 kWhOct 313.4 kWhOct 313.4 kWhFeb 153.4 kWhFeb 153.4 kWhNowNow
The average daily shortwave solar energy reaching the ground per square meter (orange line), with 25th to 75th and 10th to 90th percentile bands.

Topography

For the purposes of this report, the geographical coordinates of Tooele are 40.531 deg latitude, -112.298 deg longitude, and 5,039 ft elevation.

The topography within 2 miles of Tooele contains very significant variations in elevation, with a maximum elevation change of 1,404 feet and an average elevation above sea level of 5,108 feet. Within 10 miles contains very significant variations in elevation (6,289 feet). Within 50 miles also contains extreme variations in elevation (7,503 feet).

The area within 2 miles of Tooele is covered by artificial surfaces (44%), cropland (20%), shrubs (19%), and grassland (17%), within 10 miles by shrubs (46%) and grassland (23%), and within 50 miles by shrubs (49%) and water (14%).

Data Sources

This report illustrates the typical weather in Tooele, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.

Temperature and Dew Point

There are 3 weather stations near enough to contribute to our estimation of the temperature and dew point in Tooele.

For each station, the records are corrected for the elevation difference between that station and Tooele according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations.

The estimated value at Tooele is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Tooele and a given station.

The stations contributing to this reconstruction are: Salt Lake City International Airport (KSLC, 55%, 39 kilometers, northeast); Provo Municipal Airport (KPVU, 36%, 60 kilometers, southeast); and Wendover Airport (KENV, 9%, 148 kilometers, west).

Other Data

All data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Algorithms 2nd Edition , by Jean Meeus.

All other weather data, including cloud cover, precipitation, wind speed and direction, and solar flux, come from NASA's MERRA-2 Modern-Era Retrospective Analysis . This reanalysis combines a variety of wide-area measurements in a state-of-the-art global meteorological model to reconstruct the hourly history of weather throughout the world on a 50-kilometer grid.

Land Use data comes from the Global Land Cover SHARE database , published by the Food and Agriculture Organization of the United Nations.

Elevation data comes from the Shuttle Radar Topography Mission (SRTM) , published by NASA's Jet Propulsion Laboratory.

Names, locations, and time zones of places and some airports come from the GeoNames Geographical Database .

Time zones for airports and weather stations are provided by AskGeo.com .

Maps are © Esri, with data from National Geographic, Esri, DeLorme, NAVTEQ, UNEP-WCMC, USGS, NASA, ESA, METI, NRCAN, GEBCO, NOAA, and iPC.

Disclaimer

The information on this site is provided as is, without any assurances as to its accuracy or suitability for any purpose. Weather data is prone to errors, outages, and other defects. We assume no responsibility for any decisions made on the basis of the content presented on this site.

We draw particular cautious attention to our reliance on the MERRA-2 model-based reconstructions for a number of important data series. While having the tremendous advantages of temporal and spatial completeness, these reconstructions: (1) are based on computer models that may have model-based errors, (2) are coarsely sampled on a 50 km grid and are therefore unable to reconstruct the local variations of many microclimates, and (3) have particular difficulty with the weather in some coastal areas, especially small islands.

We further caution that our travel scores are only as good as the data that underpin them, that weather conditions at any given location and time are unpredictable and variable, and that the definition of the scores reflects a particular set of preferences that may not agree with those of any particular reader.