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Average Weather in Cedar City Utah, United States

In Cedar City, the temperature typically varies from 18°F to 87°F over the course of the year, and is rarely below 3°F or above 94°F.

The hot season lasts for 103 days, from June 4 to September 15, with an average daily high temperature above 78°F. The hottest day of the year is July 13, with an average high of 87°F and low of 59°F.

The cold season lasts for 98 days, from November 21 to February 27, with an average daily high temperature below 49°F. The coldest day of the year is January 3, with an average low of 18°F and high of 39°F.

Average High and Low Temperature

The daily average high (red line) and low (blue line) temperature with percentile bands, 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

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDecfreezingfreezingchillychillycoldcoldcoolcoolcomfortablecomfortablewarmwarmhothot
The average hourly temperature, color coded into bands: frigid < 15°F < freezing < 32°F < chilly < 45°F < cold < 55°F < cool < 65°F < comfortable < 75°F < warm < 85°F < hot < 95°F < sweltering. The shaded overlays indicate night and civil twilight.

Sun

The length of the day in Cedar City varies significantly over the course of the year. In 2017, the shortest day is December 21, with 9 hours, 33 minutes of daylight; the longest day is June 21, with 14 hours, 46 minutes of daylight.

Hours of Daylight and Twilight

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 6:10 AM on June 13, and the latest sunrise is 1 hour, 51 minutes later at 8:00 AM on November 4. The earliest sunset is at 5:13 PM on December 6, and the latest sunset is 3 hours, 45 minutes later at 8:57 PM on June 28.

Daylight saving time (DST) is observed in Cedar City during 2017, starting in the spring on March 12, lasting 237 days, and ending in the fall on November 5.

Sunrise & Sunset with Twilight and Daylight Saving Time

The solar day over the course of the year 2017. 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.

Clouds

In Cedar City, 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 Cedar City begins around May 19 and lasts for 167 days, ending around November 2. On September 20, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 84% of the time, and overcast or mostly cloudy 16% of the time.

The cloudier part of the year begins around November 2 and lasts for 198 days, ending around May 19. On March 1, the cloudiest day of the year, the sky is overcast or mostly cloudy 46% of the time, and clear, mostly clear, or partly cloudy 54% of the time.

Cloud Cover

clearerclearercloudiercloudiercloudiercloudier0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecMar 146%Mar 146%Sep 2016%Sep 2016%May 1931%May 1931%Nov 231%Nov 231%overcastovercastmostly clearmostly clearclearclear
The percentage of time spent in each cloud cover band, categorized by the percentage of the sky covered by clouds: clear < 20% < mostly clear < 40% < partly cloudy < 60% < mostly cloudy < 80% < overcast.

Precipitation

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

The wetter season lasts 292 days, from July 12 to April 30, with a greater than 12% chance of a given day being a wet day. The chance of a wet day peaks at 19% on August 8.

The drier season lasts 73 days, from April 30 to July 12. The smallest chance of a wet day is 6% on June 18.

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 Cedar City changes throughout the year.

Rain alone is the most common for 357 days, from December 21 to December 23 and from December 28 to December 18. The highest chance of a day with rain alone is 19% on August 8.

Mixed snow and rain is the most common for 8 days, from December 18 to December 21 and from December 23 to December 28. The highest chance of a day with mixed snow and rain is 7% on February 22.

Daily Chance of Precipitation

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 in the year. Cedar City experiences some seasonal variation in monthly rainfall.

The rainy period of the year lasts for 302 days, from July 8 to May 6, with a sliding 31-day rainfall of at least 0.5 inches. The most rain falls during the 31 days centered around August 11, with an average total accumulation of 0.9 inches.

The rainless period of the year lasts for 63 days, from May 6 to July 8. The least rain falls around June 20, with and average total accumulation of 0.3 inches.

Average Monthly Rainfall

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 in the year. Cedar City experiences some seasonal variation in monthly liquid-equivalent snowfall.

The snowy period of the year lasts for 150 days, from November 7 to April 6, with a sliding 31-day liquid-equivalent snowfall of at least 0.1 inches. The most snow falls during the 31 days centered around February 17, with an average total liquid-equivalent accumulation of 0.3 inches.

The snowless period of the year lasts for 215 days, from April 6 to November 7. The least snow falls around August 4, with an average total liquid-equivalent accumulation of 0.0 inches.

Average Liquid-Equivalent Monthly Snowfall

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.

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 Cedar City, 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

The percentage of time spent at various humidity comfort levels, categorized by dew point: dry < 55°F < comfortable < 60°F < humid < 65°F < muggy < 70°F < oppressive < 75°F < miserable.

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 Cedar City experiences mildly seasonal variation over the course of the year.

The windier part of the year lasts for 151 days, from January 30 to June 30, with average wind speeds of more than 4.2 miles per hour. The windiest day of the year is April 9, with an average hourly wind speed of 5.0 miles per hour.

The calmer time of year lasts for 214 days, from June 30 to January 30. The calmest day of the year is August 3, with an average hourly wind speed of 3.5 miles per hour.

Average Wind Speed

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 Cedar City varies throughout the year.

The wind is most often from the south for 282 days, from February 17 to November 26, with a peak percentage of 54% on August 22. The wind is most often from the north for 83 days, from November 26 to February 17, with a peak percentage of 39% on January 21.

Wind Direction

NNSSNN0%20%40%60%80%100%JanFebMarAprMayJunJulAugSepOctNovDecsouthsoutheasteastnorthnorthwestwest
The percentage of hours in which the mean wind direction is from each of the four cardinal wind directions (north, east, south, and west), excluding hours in which the mean wind speed is less than 1 mph. The lightly tinted areas at the boundaries are the percentage of hours spent in the implied intermediate directions (northeast, southeast, southwest, and northwest).

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 very significant seasonal variation over the course of the year.

The brighter period of the year lasts for 82 days, from May 5 to July 26, with an average daily incident shortwave energy per square meter above 7.4 kWh. The brightest day of the year is June 16, with an average of 8.6 kWh.

The darker period of the year lasts for 102 days, from November 2 to February 12, with an average daily incident shortwave energy per square meter below 3.9 kWh. The darkest day of the year is December 22, with an average of 2.7 kWh.

Average Daily Incident Shortwave Solar Energy

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 Cedar City are 37.677 deg latitude, -113.062 deg longitude, and 6,001 ft elevation (map ).

The topography within 2 miles of Cedar City contains very significant variations in elevation, with a maximum elevation change of 1,591 feet, and an average elevation above sea level of 6,004 feet. Within 10 miles contains extreme variations in elevation (4,849 feet). Within 50 miles also contains extreme variations in elevation (8,763 feet).

The area within 2 miles of Cedar City is covered by shrubs (63%), artificial surfaces (18%), and trees (12%), within 10 miles by shrubs (48%) and trees (36%), and within 50 miles by shrubs (70%) and trees (25%).

Data Sources

This report illustrates the typical weather in Cedar City, 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 Cedar City.

For each station, the records are corrected for the elevation difference between that station and Cedar City 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 Cedar City is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Cedar City and a given station.

The stations contributing to this reconstruction are: Cedar City Regional Airport (92%, 4.5 kilometers, northwest), Saint George Municipal Airport (3.3%, 80 kilometers, southwest), and Bryce Canyon Airport (5.0%, 81 kilometers, east).

Other Data

All data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Tables of the Sun, Moon and Planets , 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 aiports and weather stations are provided by AskGeo.com .