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Average Weather in Piranshahr Iran

In Piranshahr, the summers are hot, arid, and clear and the winters are very cold, dry, and partly cloudy. Over the course of the year, the temperature typically varies from 24°F to 91°F and is rarely below 14°F or above 96°F.

Based on the beach/pool score, the best time of year to visit Piranshahr for hot-weather activities is from early July to late August.

Climate Summary

very coldcoldcoolwarmhotwarmcoolcoldJanFebMarAprMayJunJulAugSepOctNovDecNowNow100%100%57%57%clearovercastprecipitation: 1.2 inprecipitation: 1.2 in0.1 in0.1 inmuggy: 0%muggy: 0%drydrybeach/pool score: 9.0beach/pool score: 9.00.00.0
Click on each chart for more information.

Temperature

The hot season lasts for 3.4 months, from June 7 to September 19, with an average daily high temperature above 80°F. The hottest day of the year is July 25, with an average high of 91°F and low of 66°F.

The cold season lasts for 3.5 months, from November 26 to March 11, with an average daily high temperature below 48°F. The coldest day of the year is January 23, with an average low of 24°F and high of 37°F.

Average High and Low Temperature

Average High and Low Temperature in PiranshahrhotcoldcoldJanFebMarAprMayJunJulAugSepOctNovDec0°F0°F10°F10°F20°F20°F30°F30°F40°F40°F50°F50°F60°F60°F70°F70°F80°F80°F90°F90°F100°F100°FJan 2337°FJan 2337°FJul 2591°FJul 2591°F24°F24°F66°F66°FJun 780°FJun 780°FSep 1980°FSep 1980°FNov 2648°FNov 2648°FMar 1148°FMar 1148°F56°F56°F55°F55°F33°F33°F32°F32°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

Average Hourly Temperature in PiranshahrJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMNowNowfreezingfreezingvery coldcoldcoldcoolcoolwarmhotvery coldfreezingfreezing
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.

Salt Lake City, Utah, United States (6,898 miles away); Columbus, Ohio, United States (6,208 miles); and South Bound Brook, New Jersey, United States (5,880 miles) are the far-away foreign places with temperatures most similar to Piranshahr (view comparison).

Clouds

In Piranshahr, 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 Piranshahr begins around May 22 and lasts for 4.6 months, ending around October 10. On July 7, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 100% of the time, and overcast or mostly cloudy 0% of the time.

The cloudier part of the year begins around October 10 and lasts for 7.4 months, ending around May 22. On December 11, the cloudiest day of the year, the sky is overcast or mostly cloudy 43% of the time, and clear, mostly clear, or partly cloudy 57% of the time.

Cloud Cover Categories

Cloud Cover Categories in PiranshahrclearercloudiercloudierJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%Jul 7100%Jul 7100%Dec 1157%Dec 1157%May 2278%May 2278%Oct 1079%Oct 1079%NowNowclearmostly clearpartly cloudymostly 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 Piranshahr varies throughout the year.

The wetter season lasts 7.3 months, from October 17 to May 27, with a greater than 10% chance of a given day being a wet day. The chance of a wet day peaks at 20% on April 22.

The drier season lasts 4.7 months, from May 27 to October 17. The smallest chance of a wet day is 1% on August 7.

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 20% on April 22.

Daily Chance of Precipitation

Daily Chance of Precipitation in PiranshahrwetwetdryJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%Apr 2220%Apr 2220%Aug 71%Aug 71%Jan 110%Jan 110%Oct 1710%Oct 1710%May 2710%May 2710%rainsnowmixed
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. Piranshahr experiences some seasonal variation in monthly rainfall.

The rainy period of the year lasts for 7.7 months, from October 9 to May 31, with a sliding 31-day rainfall of at least 0.5 inches. The most rain falls during the 31 days centered around November 10, with an average total accumulation of 1.2 inches.

The rainless period of the year lasts for 4.3 months, from May 31 to October 9. The least rain falls around August 17, with an average total accumulation of 0.1 inches.

Average Monthly Rainfall

Average Monthly Rainfall in PiranshahrrainrainJanFebMarAprMayJunJulAugSepOctNovDec0.0 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 inNov 101.2 inNov 101.2 inAug 170.1 inAug 170.1 inApr 171.2 inApr 171.2 inJan 140.4 inJan 140.4 inOct 90.5 inOct 90.5 inMay 310.5 inMay 310.5 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.

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. Piranshahr experiences some seasonal variation in monthly liquid-equivalent snowfall.

The snowy period of the year lasts for 3.3 months, from November 25 to March 1, with a sliding 31-day liquid-equivalent snowfall of at least 0.1 inches. The most snow falls during the 31 days centered around January 15, with an average total liquid-equivalent accumulation of 0.3 inches.

The snowless period of the year lasts for 8.8 months, from March 1 to November 25. The least snow falls around August 1, with an average total liquid-equivalent accumulation of 0.0 inches.

Average Liquid-Equivalent Monthly Snowfall

Average Liquid-Equivalent Monthly Snowfall in PiranshahrsnowsnowJanFebMarAprMayJunJulAugSepOctNovDec0.0 in0.0 in0.2 in0.2 in0.4 in0.4 in0.6 in0.6 in0.8 in0.8 in1.0 in1.0 in1.2 in1.2 inJan 150.3 inJan 150.3 inAug 10.0 inAug 10.0 inNov 250.1 inNov 250.1 inMar 10.1 inMar 10.1 in
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 Piranshahr varies significantly over the course of the year. In 2021, the shortest day is December 21, with 9 hours, 39 minutes of daylight; the longest day is June 21, with 14 hours, 41 minutes of daylight.

Hours of Daylight and Twilight

Hours of Daylight and Twilight in PiranshahrJanFebMarAprMayJunJulAugSepOctNovDec0 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hr12 hr, 8 minMar 2012 hr, 8 minMar 2014 hr, 41 minJun 2114 hr, 41 minJun 2112 hr, 9 minSep 2212 hr, 9 minSep 229 hr, 39 minDec 219 hr, 39 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 6:10 AM on June 13, and the latest sunrise is 1 hour, 32 minutes later at 7:42 AM on January 6. The earliest sunset is at 5:13 PM on December 6, and the latest sunset is 3 hours, 39 minutes later at 8:52 PM on June 28.

Daylight saving time (DST) is observed in Piranshahr during 2021, 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 in PiranshahrJanFebMarAprMayJunJulAugSepOctNovDec2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMJun 136:10 AMJun 136:10 AM8:52 PMJun 288:52 PMJun 28Dec 65:13 PMDec 65:13 PM7:42 AMJan 67:42 AMJan 6Mar 22DSTMar 22DSTDSTSep 21DSTSep 21daynightnightnightSolarMidnightSolarMidnightSolarNoonSunriseSunsetNowNow
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

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 Piranshahr, 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 in PiranshahrJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%Jul 30%Jul 30%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 Piranshahr experiences mild seasonal variation over the course of the year.

The windier part of the year lasts for 6.5 months, from January 31 to August 14, with average wind speeds of more than 6.9 miles per hour. The windiest day of the year is March 29, with an average hourly wind speed of 7.6 miles per hour.

The calmer time of year lasts for 5.5 months, from August 14 to January 31. The calmest day of the year is December 19, with an average hourly wind speed of 6.1 miles per hour.

Average Wind Speed

Average Wind Speed in PiranshahrwindyJanFebMarAprMayJunJulAugSepOctNovDec0 mph0 mph2 mph2 mph4 mph4 mph6 mph6 mph8 mph8 mph10 mph10 mph12 mph12 mph14 mph14 mphMar 297.6 mphMar 297.6 mphDec 196.1 mphDec 196.1 mphJan 316.9 mphJan 316.9 mphAug 146.9 mphAug 146.9 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 Piranshahr varies throughout the year.

The wind is most often from the west for 7.5 months, from March 12 to October 27, with a peak percentage of 47% on May 28. The wind is most often from the south for 4.5 months, from October 27 to March 12, with a peak percentage of 40% on January 1.

Wind Direction

Wind Direction in PiranshahrSWSJanFebMarAprMayJunJulAugSepOctNovDec0%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 Piranshahr 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 times of year to visit Piranshahr for general outdoor tourist activities are from late May to mid July and from early August to late September, with a peak score in the second week of September.

Tourism Score

Tourism Score in Piranshahrbest timebest timeJanFebMarAprMayJunJulAugSepOctNovDec002244668810108.88.80.00.08.88.87.87.8NowNowprecipitationprecipitationcloudscloudstemperaturetemperature 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 Piranshahr for hot-weather activities is from early July to late August, with a peak score in the last week of July.

Beach/Pool Score

Beach/Pool Score in Piranshahrbest timeJanFebMarAprMayJunJulAugSepOctNovDec002244668810109.09.00.00.0NowNowprecipitationprecipitationcloudsclouds 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 Piranshahr typically lasts for 7.5 months (228 days), from around March 30 to around November 13, rarely starting before March 13 or after April 18, and rarely ending before October 24 or after December 2.

Time Spent in Various Temperature Bands and the Growing Season

Time Spent in Various Temperature Bands and the Growing Season in Piranshahrgrowing seasonJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%50%Mar 3050%Mar 3050%Nov 1350%Nov 1390%Apr 1890%Apr 1890%Oct 2490%Oct 2410%Mar 1310%Mar 1310%Dec 210%Dec 20%Jan 300%Jan 30Jul 19100%Jul 19100%NowNowfreezingvery coldcomfortablewarmhotcoolcold
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 Piranshahr should appear around April 16, only rarely appearing before April 3 or after April 30.

Growing Degree Days

Growing Degree Days in PiranshahrJanFebMarAprMayJunJulAugSepOctNovDec0°F0°F500°F500°F1,000°F1,000°F1,500°F1,500°F2,000°F2,000°F2,500°F2,500°F3,000°F3,000°F3,500°F3,500°F4,000°F4,000°FApr 1687°FApr 1687°FJun 19900°FJun 19900°FJul 251,800°FJul 251,800°FDec 313,663°FDec 313,663°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 3.2 months, from May 18 to August 24, with an average daily incident shortwave energy per square meter above 7.5 kWh. The brightest day of the year is June 20, with an average of 8.8 kWh.

The darker period of the year lasts for 3.6 months, from October 30 to February 15, with an average daily incident shortwave energy per square meter below 3.8 kWh. The darkest day of the year is December 24, with an average of 2.6 kWh.

Average Daily Incident Shortwave Solar Energy

Average Daily Incident Shortwave Solar Energy in PiranshahrbrightdarkdarkJanFebMarAprMayJunJulAugSepOctNovDec0 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWh8 kWh8 kWh9 kWh9 kWh10 kWh10 kWhJun 208.8 kWhJun 208.8 kWhDec 242.6 kWhDec 242.6 kWhAug 247.5 kWhAug 247.5 kWhOct 303.8 kWhOct 303.8 kWhFeb 153.8 kWhFeb 153.8 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 Piranshahr are 36.701 deg latitude, 45.141 deg longitude, and 4,738 ft elevation.

The topography within 2 miles of Piranshahr contains very significant variations in elevation, with a maximum elevation change of 1,335 feet and an average elevation above sea level of 4,919 feet. Within 10 miles contains very significant variations in elevation (6,470 feet). Within 50 miles also contains extreme variations in elevation (10,535 feet).

The area within 2 miles of Piranshahr is covered by shrubs (62%), cropland (13%), and grassland (12%), within 10 miles by shrubs (73%) and cropland (13%), and within 50 miles by shrubs (60%) and cropland (11%).

Data Sources

This report illustrates the typical weather in Piranshahr, 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 5 weather stations near enough to contribute to our estimation of the temperature and dew point in Piranshahr.

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

The stations contributing to this reconstruction are: Orumieh (28%, 108 kilometers, north); Saghez (26%, 113 kilometers, southeast); Sahand Airport (25%, 116 kilometers, northeast); Kirkuk Air Base (12%, 155 kilometers, southwest); and Fob Diamondback (10%, 184 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.