Air Quality and Pollution
The valleys of the Wasatch Front of northern Utah experience their greatest concentrations of nitrogen oxides, carbon monoxide and particulates from November through February. Ozone reaches …
Explore the articleUTAH CENTER FOR CLIMATE & WEATHER / Explore
Understand the place we call home.
From lake-effect snow to desert winds. Discover the forces that shape Utah’s weather and climate.
Allergies
Pollen Forecast for your area (via The Weather Channel) Pollen Count (via the Intermountain Allergy and Asthma Clinic)
Explore the articleAnnual Normal Precipitation
Explore the articleAvalanche Deaths
Utah Avalanches, 1950-Present A huge natural avalanche near Sundance on January 12, 2005. Photo by Bruce Tremper Click here for more avalanche photos from the Utah Avalanche Center. During t…
Explore the articleAverage Annual Snowfall
Explore the articleBet on the Weather
or how to pick a dry day for an outdoor event Weatherbase (Weather Records and Averages for over 41,000 cities worldwide) Have you ever held an outdoor party that was "rained on," or attende…
Explore the articleClimate of Utah
NWS Description of Utah's Climate Utah's climate and weather are both delightful and variable. During the summer, most populated areas experience daytime temperatures that are warm but not t…
Explore the articleClimate of Utah
NWS Description of Utah's Climate Utah's climate and weather are both delightful and variable. During the summer, most populated areas experience daytime temperatures that are warm but not t…
Explore the articleClimatology
Climatological Information (Note: Many of these sections have been updated from the book Utah's Weather and Climate:) Utah's Climate Weather Conditions for Utah Areas Utah's Monthly Weather …
Explore the articleConference vs. the Weather
by R. Clayton Brough and David R. James, UCCW Climatologists March 15, 2006 Every spring and fall, The Church of Jesus Christ of Latter-day Saints (L.D.S. or Mormon Church) holds a church-wi…
Explore the articleDroughts of the Past 500 Years
Explore the articleEffects of Hurricanes
Visit the National Hurricane Center Moisture from the remnants of tropical storms or hurricanes occasionally reaches Utah from the Gulf of Mexico or the eastern Pacific near Baja California.…
Explore the articleExperimental Long-Range Weather Predictions
Experimental Long-Range Weather Predictions by R. Clayton Brough, UCCW Climatologist, May, 2005 During the past several years, an increasing number of individuals and companies have inquired…
Explore the articleFloods and Flash Floods
Statistics on Utah's Floods and Flash Floods (NWS) Floods and Flash Floods Floods are a natural and inevitable part of life along the rivers of our country. Some floods occur seasonally when…
Explore the articleFog
Fog is a cloud that is close to the ground. It forms when air near the ground cools and water vapor in the air condenses into tiny but visible water droplets. Fog tends to form first in the …
Explore the articleFreeze Dates and Freeze-Free Season
Freeze Dates (in PDF) for numerous Utah cities and locations have been published by Dr. Donald T. Jensen, retired Utah State Climatologist of the Utah Climate Center at Utah State University…
Explore the articleHailstorms
Hail falls from large cumulonimbus clouds made of water drops and ice particles. "A hailstone starts out as an ice particle. Ice particles build up into ice crystals by condensation. The ice…
Explore the articleImpact of El Nino or La Nina on Weather Patterns
El Nino and La Nina Home Page (NWS-CPC)
Explore the articleImpact of Global Warming on Utah's Climate and Weather
by R. Clayton Brough and David R. James September 1, 2003 According to the American Meteorological Society (AMS), "There is now clear evidence" that the mean annual temperature of the Earth'…
Explore the articleLake Effect Weather
The Great Salt Lake has some influence on the local weather climate of its surrounding communities. The high salt content in the water of the lake (which averages 15% on the south arm and 25…
Explore the articleLightning
Utah Lightning Statistics by Month, Year and County (by the NWS) General Information About Lightning Each year, hundreds of Americans are hit by lightning, resulting in dozens of deaths and …
Explore the articleLong-Range Outlooks for Utah
R. Clayton Brough and David R. James, UCCW Climatologists Weather Predictions for 1-15 Days (via AccuWeather) Weather Predictions for 1-15 Days (via WeatherPlanner) Experimental Long-Range W…
Explore the articleMega-Snowstorms
Utah's Mega-Storms Mega-Snowstorms at the Salt Lake City International Airport, 1928-2003 Mega-Snowstorms occasionally hit the Wasatch Front Valleys of northern Utah. Salt Lake City (or simi…
Explore the articleMeteorology
Meteorological Information Updated Information from the book Utah's Weather and Climate Wood Burning Advisories Weather Terms and Definitions Weather Instruments Weather Information for Gard…
Explore the articleUtah Deaths from Natural Hazards
Utah Deaths from Natural Hazards (Ogden Standard Examiner) Updated: 25 March 2006 Utah 1847-1949 1950-Present Avalanches 189 85 Lightning 56 60 Floods 40 27 Tornadoes 1 (in 1884) 1 (in 1999)
Explore the articlePrecipitation
Precipitation in Utah varies greatly, from an average of a little less than five inches over the Great Salt Lake Desert to more than 60 inches at the top of the northern Wasatch Mountains. T…
Explore the articleResearch
UCCW Sponsored Research Projects Experimental Long-Range Weather Predictions During 2004 and 2005, UCCW officials documented the accuracy and usefulness of long-range weather predictions for…
Explore the articleSunshine
Utah receives plenty of sunshine. On an annual basis, Salt Lake City receives 67% of all possible sunshine, averaging 125 clear days, 101 partly cloudy days, and 139 cloudy days a year. In c…
Explore the articleTemperature Inversions
Many times each year, especially in late fall, winter, and early spring, many valleys of northern and western Utah experience temperature inversions. Inversions occur when air near the groun…
Explore the articleTemperatures
Utah's temperatures vary greatly with changing altitude and latitude. The mountains and elevated valleys have the cooler climates, while lower areas of the state have higher temperatures. Ge…
Explore the articleUltraviolet Radiation
Choose Your Cover - Cancer Prevention and Control (CDC) SunWise Program for Educators (EPA) UV Index Forecast for Your Location (EPA) Problems Caused by Ultraviolet Radiation and Overexposur…
Explore the articleUtah Deaths from Natural Hazards
Utah Deaths from Natural Hazards (Ogden Standard Examiner) Updated: 25 March 2006 Utah 1847-1949 1950-Present Avalanches 189 109 Lightning 56 65 Floods 40 33 Tornadoes 1 (in 1884) 1 (in 1999…
Explore the articleUtah Tornadoes and Waterspouts
UTAH'S TORNADOES & WATERSPOUTS 1847 TO THE PRESENT Tornado & Waterspout Photos Educational Information about Tornadoes (How to keep safe from tornadoes.) Tornadoes: Nature's Most Violent Sto…
Explore the articleUtah Weather Cameras
UDOT CommuterLink Cameras Olympus Cove Earthcam (for Utah locations) Sevier River area cameras
Explore the articleUtah's Greatest Snow on Earth
Current Utah Ski Resort Information Winter storms that affect Utah generally originate in the North Pacific Ocean, where cold Arctic air encounters the relatively warmer Pacific waters. As t…
Explore the articleUtah's Mega-Storms
It's been estimated that since 1847, Utah has experienced over five dozen Mega-Storms. The climatological definition for such storms is as follows: 1) Size : Mega-Storms usually cover a huge…
Explore the articleUtah's Monthly Weather Almanac
Monthly Weather Almanac for Utah January Monthly Weather Almanac February Monthly Weather Almanac March Monthly Weather Almanac April Monthly Weather Almanac May Monthly Weather Almanac June…
Explore the articleUtah's Winds
(Updated: August 20, 2006) Southern Wasatch Front Bow Echo Wind Damaging Event, August 1, 2006 Utah Winds Winds at any location are the result of unequal heating and cooling of the earth's s…
Explore the articleWeather Conditions for Utah Areas
24-Hour Temp & Precip Summary for Utah by NWS Great Basin Mesonet (Current Winds and Temps) Clickable Maps for the Great Basin CommuterLink Cameras throughout Utah Utah Snow Resort Informati…
Explore the articleWeather Information for Gardeners
Through the different stages of development, fruit can withstand different critical temperatures. Kill rates differ to the percentage of buds that could die if temperatures drop below the cr…
Explore the articleWeather Instruments
The following weather instrument companies provide weather instruments that are suitable for individuals or schools. Davis Weather Instruments Rainwise, Inc. Weather Instruments Texas Weathe…
Explore the articleWeather Terms and Definitions
Climate : The average and expected weather conditions of an area over a long period of time--usually for 30 years or more. Climatologist : A person who studies the climate and its effect on …
Explore the articleWeather Terms and Definitions
Climate : The average and expected weather conditions of an area over a long period of time--usually for 30 years or more. Climatologist : A person who studies the climate and its effect on …
Explore the articleWhirlwinds or Dust Devils
Whirlwinds or dust devils are quite common throughout the arid and semiarid environments of Utah. All that is required to produce a dust devil is moderate heating at the surface of the earth…
Explore the articleWinter Storms
Winter Weather Preparedness Winter storms in the form of blizzards, heavy snows, freezing rain, or sleet can be serious hazards to people in Utah. The following information comes from variou…
Explore the articleWood Burning Advisories
In the fall of 1992, a Wood and Coal Burning Control Program was instituted by the Department of Environmental Quality for the State of Utah, in cooperation with the public, to control woods…
Explore the articleExplore our reference collection by subject. These sample articles preserve the original UCCW text and its historical context.