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Average Weather at Masjed-Soleyman Iran

At Masjed-Soleyman, the temperature typically varies from 45°F to 112°F over the course of the year, and is rarely below 38°F or above 117°F.

The hot season lasts for 4.0 months, from May 22 to September 23, with an average daily high temperature above 102°F. The hottest day of the year is July 24, with an average high of 112°F and low of 90°F.

The cool season lasts for 3.4 months, from November 26 to March 8, with an average daily high temperature below 72°F. The coldest day of the year is January 23, with an average low of 45°F and high of 61°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 AMJanFebMarAprMayJunJulAugSepOctNovDeccoldcoldcoolcoolcomfortablecomfortablewarmwarmhothotswelteringsweltering
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 at Masjed-Soleyman varies significantly over the course of the year. In 2017, the shortest day is December 21, with 10 hours, 3 minutes of daylight; the longest day is June 21, with 14 hours, 15 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 6:01 AM on September 22, and the latest sunrise is 1 hour, 13 minutes later at 7:14 AM on January 8. The earliest sunset is at 5:08 PM on December 4, and the latest sunset is 3 hours, 15 minutes later at 8:23 PM on June 30.

Daylight saving time (DST) is observed at Masjed-Soleyman 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

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

At Masjed-Soleyman, 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 Masjed-Soleyman begins around May 23 and lasts for 4.8 months, ending around October 17. On June 30, 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 17 and lasts for 7.2 months, ending around May 23. On December 19, the cloudiest day of the year, the sky is overcast or mostly cloudy 38% of the time, and clear, mostly clear, or partly cloudy 62% of the time.

Cloud Cover

clearerclearercloudiercloudiercloudiercloudier0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecDec 1938%Dec 1938%Jun 301%Jun 301%May 2319%May 2319%Oct 1719%Oct 1719%overcastovercastmostly cloudymostly cloudypartly cloudypartly cloudymostly 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 at Masjed-Soleyman varies throughout the year.

The wetter season lasts 6.0 months, from October 31 to April 30, with a greater than 7% chance of a given day being a wet day. The chance of a wet day peaks at 14% on January 18.

The drier season lasts 6.0 months, from April 30 to October 31. The smallest chance of a wet day is 0% on September 15.

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 14% on January 18.

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. Masjed-Soleyman experiences some seasonal variation in monthly rainfall.

The rainy period of the year lasts for 6.0 months, from October 28 to April 28, with a sliding 31-day rainfall of at least 0.5 inches. The most rain falls during the 31 days centered around December 21, with an average total accumulation of 1.2 inches.

The rainless period of the year lasts for 6.0 months, from April 28 to October 28. The least rain falls around September 10, with and average total accumulation of 0.0 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.

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 Masjed-Soleyman, 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, staying within 1% of 1% throughout.

Humidity Comfort Levels

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecJan 130%Jan 130%Aug 102%Aug 102%comfortablecomfortabledrydry
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 Masjed-Soleyman experiences mildly seasonal variation over the course of the year.

The windier part of the year lasts for 7.2 months, from March 15 to October 21, with average wind speeds of more than 3.3 miles per hour. The windiest day of the year is July 30, with an average hourly wind speed of 3.9 miles per hour.

The calmer time of year lasts for 4.8 months, from October 21 to March 15. The calmest day of the year is January 7, with an average hourly wind speed of 2.7 miles per hour.

Average Wind Speed

windywindy0.0 mph0.5 mph1.0 mph1.5 mph2.0 mph2.5 mph3.0 mph3.5 mph4.0 mph4.5 mph5.0 mph5.5 mph6.0 mphJanFebMarAprMayJunJulAugSepOctNovDecJul 303.9 mphJul 303.9 mphJan 72.7 mphJan 72.7 mphMar 153.3 mphMar 153.3 mphOct 213.3 mphOct 213.3 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 Masjed-Soleyman varies throughout the year.

The wind is most often from the west for 4.3 months, from May 3 to September 12, with a peak percentage of 47% on June 13. The wind is most often from the east for 7.7 months, from September 12 to May 3, with a peak percentage of 49% on December 22.

Wind Direction

EEWWEE0%20%40%60%80%100%JanFebMarAprMayJunJulAugSepOctNovDecwestwestsouthsoutheasteastnorthnorth
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 3.3 months, from May 15 to August 25, with an average daily incident shortwave energy per square meter above 7.4 kWh. The brightest day of the year is June 19, with an average of 8.5 kWh.

The darker period of the year lasts for 3.3 months, from November 3 to February 12, with an average daily incident shortwave energy per square meter below 4.2 kWh. The darkest day of the year is December 24, with an average of 3.0 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 Masjed-Soleyman are 32.002 deg latitude, 49.270 deg longitude, and 1,129 ft elevation (map ).

The topography within 2 miles of Masjed-Soleyman contains very significant variations in elevation, with a maximum elevation change of 1,293 feet, and an average elevation above sea level of 1,194 feet. Within 10 miles contains extreme variations in elevation (3,481 feet). Within 50 miles also contains extreme variations in elevation (12,297 feet).

The area within 2 miles of Masjed-Soleyman is covered by shrubs (95%), within 10 miles by shrubs (92%), and within 50 miles by shrubs (55%) and sparse vegetation (17%).

Data Sources

This report illustrates the typical weather at Masjed-Soleyman, 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

Masjed-Soleyman 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.

The stations on which we may fall back are Ahwaz International Airport and Shahrekord Airport.

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 .