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    Average Weather at Yazd Airport Iran

    At Yazd Airport, the summers are sweltering, arid, and clear and the winters are cold, dry, and mostly clear. Over the course of the year, the temperature typically varies from 33°F to 102°F and is rarely below 26°F or above 108°F.

    The hot season lasts for 3.8 months, from May 24 to September 17, with an average daily high temperature above 93°F. The hottest day of the year is July 11, with an average high of 102°F and low of 79°F.

    The cool season lasts for 3.3 months, from November 23 to March 1, with an average daily high temperature below 65°F. The coldest day of the year is January 12, with an average low of 33°F and high of 55°F.

    Average High and Low Temperature

    Average High and Low Temperature at Yazd Airporthotcoolcool20°F30°F40°F50°F60°F70°F80°F90°F100°F110°FJanFebMarAprMayJunJulAugSepOctNovDecJan 1255°FJan 1255°FJul 11102°FJul 11102°F33°F33°F79°F79°FMay 2493°FMay 2493°FSep 1793°FSep 1793°FNov 2364°FNov 2364°FMar 165°FMar 165°F69°F69°F67°F67°F42°F42°F41°F41°F
    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

    Average Hourly Temperature at Yazd Airport12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDecchillycoldcoolcomfortablewarmhotsweltering
    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.

    Clouds

    At Yazd Airport, 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 at Yazd Airport begins around May 20 and lasts for 5.2 months, ending around October 25. On September 12, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 99% of the time, and overcast or mostly cloudy 1% of the time.

    The cloudier part of the year begins around October 25 and lasts for 6.8 months, ending around May 20. On April 16, the cloudiest day of the year, the sky is overcast or mostly cloudy 34% of the time, and clear, mostly clear, or partly cloudy 66% of the time.

    Cloud Cover

    Cloud Cover at Yazd Airportclearercloudiercloudier0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecApr 1634%Apr 1634%Sep 121%Sep 121%May 2018%May 2018%Oct 2518%Oct 2518%overcastmostly cloudypartly cloudymostly clearclear
    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

    Yazd Airport does not experience significant seasonal variation in the frequency of wet days (i.e., those with greater than 0.04 inches of liquid or liquid-equivalent precipitation). The frequency ranges from 0% to 7%, with an average value of 3%.

    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 throughout the year is rain alone, with a peak probability of 6% on March 21.

    Daily Chance of Precipitation

    Daily Chance of Precipitation at Yazd Airport0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecJan 217%Jan 217%Sep 90%Sep 90%Jan 15%Jan 15%Nov 104%Nov 104%Apr 124%Apr 124%snowrain
    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

    The sliding 31-day quantity of rainfall at Yazd Airport does not vary significantly over the course of the year, staying within 0.1 inches of 0.2 inches throughout.

    Average Monthly Rainfall

    Average Monthly Rainfall at Yazd Airport0.0 in0.1 in0.2 in0.3 in0.4 in0.5 in0.6 in0.7 inJanFebMarAprMayJunJulAugSepOctNovDecDec 30.3 inDec 30.3 inJun 140.0 inJun 140.0 inMar 120.3 inMar 120.3 inOct 10.1 inOct 10.1 in
    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.

    Sun

    The length of the day at Yazd Airport varies significantly over the course of the year. In 2017, the shortest day is December 21, with 10 hours, 4 minutes of daylight; the longest day is June 21, with 14 hours, 14 minutes of daylight.

    Hours of Daylight and Twilight

    Hours of Daylight and Twilight at Yazd Airport0 hr4 hr8 hr12 hr16 hr20 hr24 hrJanFebMarAprMayJunJulAugSepOctNovDec12 hr, 6 minMar 2012 hr, 6 minMar 2014 hr, 14 minJun 2114 hr, 14 minJun 2112 hr, 9 minSep 2212 hr, 9 minSep 2210 hr, 4 minDec 2110 hr, 4 minDec 21nightnightday
    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 5:41 AM on September 22, and the latest sunrise is 1 hour, 13 minutes later at 6:54 AM on March 22. The earliest sunset is at 4:48 PM on December 4, and the latest sunset is 3 hours, 14 minutes later at 8:02 PM on June 30.

    Daylight saving time (DST) is observed at Yazd Airport during 2017, starting in the spring on March 22, lasting 6.0 months, and ending in the fall on September 21.

    Sunrise & Sunset with Twilight and Daylight Saving Time

    Sunrise & Sunset with Twilight and Daylight Saving Time at Yazd Airport12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDecSep 225:41 AMSep 225:41 AM8:02 PMJun 308:02 PMJun 30Dec 44:48 PMDec 44:48 PM6:54 AMMar 226:54 AMMar 22Mar 22DSTMar 22DSTDSTSep 21DSTSep 21daynightnightnightnight
    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.

    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 at Yazd Airport, 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

    Humidity Comfort Levels at Yazd Airport0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecJul 30%Jul 30%drydrycomfortablecomfortable
    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 at Yazd Airport experiences mild seasonal variation over the course of the year.

    The windier part of the year lasts for 7.5 months, from January 19 to September 3, with average wind speeds of more than 4.0 miles per hour. The windiest day of the year is July 20, with an average hourly wind speed of 4.9 miles per hour.

    The calmer time of year lasts for 4.5 months, from September 3 to January 19. The calmest day of the year is October 25, with an average hourly wind speed of 3.2 miles per hour.

    Average Wind Speed

    Average Wind Speed at Yazd Airportwindy0 mph1 mph2 mph3 mph4 mph5 mph6 mph7 mph8 mphJanFebMarAprMayJunJulAugSepOctNovDecJul 204.9 mphJul 204.9 mphOct 253.2 mphOct 253.2 mphJan 194.0 mphJan 194.0 mphSep 34.0 mphSep 34.0 mph
    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 at Yazd Airport varies throughout the year.

    The wind is most often from the north for 1.4 months, from May 10 to June 21 and for 3.3 months, from July 14 to October 23, with a peak percentage of 55% on August 3. The wind is most often from the east for 3.3 weeks, from June 21 to July 14, with a peak percentage of 47% on July 10. The wind is most often from the west for 6.6 months, from October 23 to May 10, with a peak percentage of 47% on January 1.

    Wind Direction

    Wind Direction at Yazd AirportWNENW0%20%40%60%80%100%JanFebMarAprMayJunJulAugSepOctNovDecwestsoutheastnorth
    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 extreme seasonal variation over the course of the year.

    The brighter period of the year lasts for 3.7 months, from May 7 to August 29, with an average daily incident shortwave energy per square meter above 7.7 kWh. The brightest day of the year is June 14, with an average of 8.7 kWh.

    The darker period of the year lasts for 3.1 months, from November 4 to February 8, with an average daily incident shortwave energy per square meter below 4.6 kWh. The darkest day of the year is December 25, with an average of 3.5 kWh.

    Average Daily Incident Shortwave Solar Energy

    Average Daily Incident Shortwave Solar Energy at Yazd Airportbrightdarkdark0 kWh1 kWh2 kWh3 kWh4 kWh5 kWh6 kWh7 kWh8 kWh9 kWh10 kWhJanFebMarAprMayJunJulAugSepOctNovDecJun 148.7 kWhJun 148.7 kWhDec 253.5 kWhDec 253.5 kWhMay 77.7 kWhMay 77.7 kWhAug 297.7 kWhAug 297.7 kWhNov 44.6 kWhNov 44.6 kWhFeb 84.6 kWhFeb 84.6 kWh
    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 Yazd Airport are 31.905 deg latitude, 54.277 deg longitude, and 4,012 ft elevation.

    The topography within 2 miles of Yazd Airport contains only modest variations in elevation, with a maximum elevation change of 262 feet and an average elevation above sea level of 4,018 feet. Within 10 miles contains only modest variations in elevation (1,795 feet). Within 50 miles contains very significant variations in elevation (10,249 feet).

    The area within 2 miles of Yazd Airport is covered by artificial surfaces (45%) and bare soil (36%), within 10 miles by bare soil (53%) and artificial surfaces (26%), and within 50 miles by bare soil (44%) and shrubs (39%).

    Data Sources

    This report illustrates the typical weather at Yazd Airport, 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

    Yazd Airport has a weather station that reported reliably enough during the analysis period that we have included it in our network. When available, historical temperature and dew point measurements are taken directly from this weather station. These records are obtained from NOAA's Integrated Surface Hourly data set, falling back on ICAO METAR records as required.

    In the case of missing or erroneous measurements from this station, we fall back on records from nearby stations, adjusted according to typical seasonal and diurnal intra-station differences. For a given day of the year and hour of the day, the fallback station is selected to minimize the prediction error over the years for which there are measurements for both stations.

    In this case, the only station close and reliable enough to use as a fallback is Abadeh.

    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 .

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