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Winter Weather in Torbat-e Ḩeydarīyeh Iran

Daily high temperatures are around 47°F, rarely falling below 33°F or exceeding 62°F. The lowest daily average high temperature is 43°F on January 23.

Daily low temperatures are around 28°F, rarely falling below 15°F or exceeding 40°F. The lowest daily average low temperature is 25°F on January 20.

For reference, on July 13, the hottest day of the year, temperatures in Torbat-e Ḩeydarīyeh typically range from 71°F to 91°F, while on January 20, the coldest day of the year, they range from 25°F to 43°F.

Average High and Low Temperature in the Winter in Torbat-e Ḩeydarīyeh

Average High and Low Temperature in the Winter in Torbat-e ḨeydarīyehDecJanFeb10°F10°F15°F15°F20°F20°F25°F25°F30°F30°F35°F35°F40°F40°F45°F45°F50°F50°F55°F55°F60°F60°F65°F65°F70°F70°F75°F75°FFallSpringJan 2343°FJan 2343°F25°F25°FDec 152°FDec 152°F32°F32°FFeb 2851°FFeb 2851°F32°F32°FJan 145°FJan 145°F26°F26°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 hourly average winter temperatures. The horizontal axis is the day, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day.

Average Hourly Temperature in the Winter in Torbat-e Ḩeydarīyeh

Average Hourly Temperature in the Winter in Torbat-e ḨeydarīyehDecJanFeb12 AM12 AM2 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AMFallSpringNowNowfreezingfreezingvery coldcoldcoldcoolcoolcoldcold
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.

Wichita, Kansas, United States (7,184 miles away) and Scott City, Missouri, United States (7,050 miles) are the far-away foreign places with temperatures most similar to Torbat-e Ḩeydarīyeh (view comparison).

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The winter in Torbat-e Ḩeydarīyeh experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 33% throughout the season.

The clearest day of the winter is February 2, with clear, mostly clear, or partly cloudy conditions 69% of the time.

For reference, on March 23, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 37%, while on August 22, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 100%.

Cloud Cover Categories in the Winter in Torbat-e Ḩeydarīyeh

Cloud Cover Categories in the Winter in Torbat-e ḨeydarīyehDecJanFeb0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%FallSpringDec 168%Dec 168%Feb 2865%Feb 2865%Jan 166%Jan 166%Feb 169%Feb 169%NowNowclearmostly clearpartly cloudyovercastmostly cloudy
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.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Torbat-e Ḩeydarīyeh, the chance of a wet day over the course of the winter is rapidly increasing, starting the season at 8% and ending it at 15%.

For reference, the year's highest daily chance of a wet day is 16% on March 16, and its lowest chance is 0% on August 9.

Over the course of the winter in Torbat-e Ḩeydarīyeh, the chance of a day with only rain increases from 7% to 12%, the chance of a day with mixed snow and rain remains an essentially constant 2% throughout, and the chance of a day with only snow remains an essentially constant 1% throughout.

Probability of Precipitation in the Winter in Torbat-e Ḩeydarīyeh

Probability of Precipitation in the Winter in Torbat-e ḨeydarīyehDecJanFeb0%0%2%2%4%4%6%6%8%8%10%10%12%12%14%14%16%16%FallSpringDec 18%Dec 18%Feb 2815%Feb 2815%Jan 110%Jan 110%Feb 114%Feb 114%NowNowsnowmixedrain
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 season and not just the monthly totals, we show the rainfall accumulated over a sliding 31-day period centered around each day.

The average sliding 31-day rainfall during the winter in Torbat-e Ḩeydarīyeh is gradually increasing, starting the season at 0.4 inches, when it rarely exceeds 0.9 inches, and ending the season at 0.9 inches, when it rarely exceeds 1.8 inches or falls below 0.1 inches.

Average Monthly Rainfall in the Winter in Torbat-e Ḩeydarīyeh

Average Monthly Rainfall in the Winter in Torbat-e ḨeydarīyehDecJanFeb0.0 in0.0 in0.5 in0.5 in1.0 in1.0 in1.5 in1.5 in2.0 in2.0 inFallSpringDec 10.4 inDec 10.4 inFeb 280.9 inFeb 280.9 inJan 10.5 inJan 10.5 inFeb 10.7 inFeb 10.7 inNowNow
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 snowfall.

Snowfall

As with rainfall, we consider the snowfall accumulated over a sliding 31-day period centered around each day.

The average sliding 31-day snowfall during the winter in Torbat-e Ḩeydarīyeh is gradually increasing, starting the season at 0.4 inches, when it rarely exceeds 1.4 inches, and ending the season at 1.2 inches, when it rarely exceeds 3.8 inches.

The highest average 31-day accumulation is 2.0 inches on January 28.

Average Monthly Snowfall in the Winter in Torbat-e Ḩeydarīyeh

Average Monthly Snowfall in the Winter in Torbat-e ḨeydarīyehDecJanFeb0 in0 in1 in1 in2 in2 in3 in3 in4 in4 in5 in5 in6 in6 in7 in7 inFallSpringJan 272.0 inJan 272.0 inDec 10.4 inDec 10.4 inFeb 281.2 inFeb 281.2 inJan 11.2 inJan 11.2 inNowNow
The average 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.

Over the course of the winter in Torbat-e Ḩeydarīyeh, the length of the day is rapidly increasing. From the start to the end of the season, the length of the day increases by 1 hour, 26 minutes, implying an average daily increase of 58 seconds, and weekly increase of 6 minutes, 48 seconds.

The shortest day of the winter is December 21, with 9 hours, 47 minutes of daylight and the longest day is February 28, with 11 hours, 24 minutes of daylight.

Hours of Daylight and Twilight in the Winter in Torbat-e Ḩeydarīyeh

Hours of Daylight and Twilight in the Winter in Torbat-e ḨeydarīyehDecJanFeb0 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hrFallSpringDec 219 hr, 47 minDec 219 hr, 47 minnightnightdaydayFeb 2811 hr, 24 minFeb 2811 hr, 24 minFeb 110 hr, 29 minFeb 110 hr, 29 minNowNow
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 latest sunrise of the winter in Torbat-e Ḩeydarīyeh is 6:42 AM on January 7 and the earliest sunrise is 38 minutes earlier at 6:04 AM on February 28.

The earliest sunset is 4:20 PM on December 5 and the latest sunset is 1 hour, 7 minutes later at 5:27 PM on February 28.

Daylight saving time is not observed in Torbat-e Ḩeydarīyeh during 2024.

For reference, on June 20, the longest day of the year, the Sun rises at 4:18 AM and sets 14 hours, 32 minutes later, at 6:50 PM, while on December 21, the shortest day of the year, it rises at 6:38 AM and sets 9 hours, 47 minutes later, at 4:24 PM.

Sunrise & Sunset with Twilight in the Winter in Torbat-e Ḩeydarīyeh

Sunrise & Sunset with Twilight in the Winter in Torbat-e ḨeydarīyehDecJanFeb12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PMFallSpring6:04 AM6:04 AMFeb 285:27 PMFeb 285:27 PM6:27 AM6:27 AMDec 54:20 PMDec 54:20 PM6:42 AM6:42 AMJan 74:36 PMJan 74:36 PM6:32 AM6:32 AMFeb 15:01 PMFeb 15:01 PMSolarMidnightSolarMidnightSolarNoonSunriseSunsetNowNow
The solar day in the winter. 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 figure below presents a compact representation of the sun's elevation (the angle of the sun above the horizon) and azimuth (its compass bearing) for every hour of every day in the reporting period. The horizontal axis is the day of the year and the vertical axis is the hour of the day. For a given day and hour of that day, the background color indicates the azimuth of the sun at that moment. The black isolines are contours of constant solar elevation.

Solar Elevation and Azimuth in the Winter in Torbat-e Ḩeydarīyeh

Solar Elevation and Azimuth in the Winter in Torbat-e ḨeydarīyehDecJanFeb12 AM12 AM2 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AMFallSpring0010202030305000101020303040NowNow
northeastsouthwest
Solar elevation and azimuth in the the winter of 2024. The black lines are lines of constant solar elevation (the angle of the sun above the horizon, in degrees). The background color fills indicate the azimuth (the compass bearing) of the sun. The lightly tinted areas at the boundaries of the cardinal compass points indicate the implied intermediate directions (northeast, southeast, southwest, and northwest).

The figure below presents a compact representation of key lunar data for the winter of 2024. 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. The label associated with each bar indicates the date and time that the phase is obtained, and the companion time labels indicate the rise and set times of the Moon for the nearest time interval in which the moon is above the horizon.

Moon Rise, Set & Phases in the Winter in Torbat-e Ḩeydarīyeh

Moon Rise, Set & Phases in the Winter in Torbat-e ḨeydarīyehDecJanFeb12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMFallSpringNov 14:18 PMNov 14:18 PMNov 1612:59 AMNov 1612:59 AMDec 19:52 AMDec 19:52 AMDec 1512:32 PMDec 1512:32 PMDec 311:58 AMDec 311:58 AMJan 141:58 AMJan 141:58 AMJan 294:07 PMJan 294:07 PMFeb 125:24 PMFeb 125:24 PMFeb 284:15 AMFeb 284:15 AMMar 1410:25 AMMar 1410:25 AMMar 292:28 PMMar 292:28 PM5:38 AM5:38 AM3:50 PM3:50 PM6:39 AM6:39 AM6:33 AM6:33 AM4:08 PM4:08 PM4:06 PM4:06 PM7:45 AM7:45 AM7:17 AM7:17 AM3:58 PM3:58 PM7:15 AM7:15 AM6:40 AM6:40 AM4:47 PM4:47 PM5:02 PM5:02 PM6:53 AM6:53 AM6:17 AM6:17 AM4:54 PM4:54 PM5:46 AM5:46 AM5:12 AM5:12 AMNowNow
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.

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 chance that a given day will be muggy in Torbat-e Ḩeydarīyeh is essentially constant during the winter, remaining around 0% throughout.

For reference, on August 15, the muggiest day of the year, there are muggy conditions 0% of the time, while on January 1, the least muggy day of the year, there are muggy conditions 0% of the time.

Humidity Comfort Levels in the Winter in Torbat-e Ḩeydarīyeh

Humidity Comfort Levels in the Winter in Torbat-e ḨeydarīyehDecJanFeb0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%FallSpringJan 150%Jan 150%Dec 10%Dec 10%Feb 280%Feb 280%Jan 10%Jan 10%Feb 10%Feb 10%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.

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 Torbat-e Ḩeydarīyeh is increasing during the winter, increasing from 6.3 miles per hour to 7.8 miles per hour over the course of the season.

For reference, on July 18, the windiest day of the year, the daily average wind speed is 14.7 miles per hour, while on November 29, the calmest day of the year, the daily average wind speed is 6.3 miles per hour.

Average Wind Speed in the Winter in Torbat-e Ḩeydarīyeh

Average Wind Speed in the Winter in Torbat-e ḨeydarīyehDecJanFeb0 mph0 mph2 mph2 mph4 mph4 mph6 mph6 mph8 mph8 mph10 mph10 mph12 mph12 mph14 mph14 mphFallSpringDec 16.3 mphDec 16.3 mphFeb 287.8 mphFeb 287.8 mphJan 16.4 mphJan 16.4 mphFeb 17.1 mphFeb 17.1 mphNowNow
The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands.

The hourly average wind direction in Torbat-e Ḩeydarīyeh throughout the winter is predominantly from the west, with a peak proportion of 36% on December 27.

Wind Direction in the Winter in Torbat-e Ḩeydarīyeh

Wind Direction in the Winter in Torbat-e ḨeydarīyehEWEDecJanFeb0%100%20%80%40%60%60%40%80%20%100%0%FallSpringNowNowwestsoutheastnorth
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).

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 Torbat-e Ḩeydarīyeh typically lasts for 7.5 months (231 days), from around March 22 to around November 8, rarely starting before March 5 or after April 10, and rarely ending before October 14 or after November 28.

The winter in Torbat-e Ḩeydarīyeh is very likely fully outside of the growing season, with the chance that a given day is in the growing season reaching a low of 0% on January 26.

Time Spent in Various Temperature Bands and the Growing Season in the Winter in Torbat-e Ḩeydarīyeh

Time Spent in Various Temperature Bands and the Growing Season in the Winter in Torbat-e ḨeydarīyehDecJanFeb0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%FallSpringDec 17%Dec 17%Feb 283%Feb 283%Jan 10%Jan 10%Feb 10%Feb 10%50%Nov 850%Nov 8freezingvery coldcoldcoolfrigidcomfortable
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.

The average accumulated growing degree days in Torbat-e Ḩeydarīyeh are very rapidly decreasing during the winter, decreasing by 4,653°F, from 4,673°F to 20°F, over the course of the season.

Growing Degree Days in the Winter in Torbat-e Ḩeydarīyeh

Growing Degree Days in the Winter in Torbat-e ḨeydarīyehDecJanFeb0°F0°F1,000°F1,000°F2,000°F2,000°F3,000°F3,000°F4,000°F4,000°F5,000°F5,000°FFallSpringDec 14,673°FDec 14,673°FFeb 2820°FFeb 2820°FNowNow
The average growing degree days accumulated over the course of the winter, with 25th to 75th and 10th to 90th percentile bands.

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 in Torbat-e Ḩeydarīyeh is rapidly increasing during the winter, rising by 1.5 kWh, from 3.2 kWh to 4.7 kWh, over the course of the season.

The lowest average daily incident shortwave solar energy during the winter is 3.0 kWh on December 22.

Average Daily Incident Shortwave Solar Energy in the Winter in Torbat-e Ḩeydarīyeh

Average Daily Incident Shortwave Solar Energy in the Winter in Torbat-e ḨeydarīyehDecJanFeb0 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWhFallSpringDec 223.0 kWhDec 223.0 kWhDec 13.2 kWhDec 13.2 kWhFeb 284.7 kWhFeb 284.7 kWhFeb 13.7 kWhFeb 13.7 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.

For the purposes of this report, the geographical coordinates of Torbat-e Ḩeydarīyeh are 35.274 deg latitude, 59.219 deg longitude, and 4,432 ft elevation.

The topography within 2 miles of Torbat-e Ḩeydarīyeh contains very significant variations in elevation, with a maximum elevation change of 1,037 feet and an average elevation above sea level of 4,484 feet. Within 10 miles contains very significant variations in elevation (2,103 feet). Within 50 miles contains large variations in elevation (7,051 feet).

The area within 2 miles of Torbat-e Ḩeydarīyeh is covered by shrubs (85%), within 10 miles by shrubs (82%), and within 50 miles by shrubs (73%).

This report illustrates the typical weather in Torbat-e Ḩeydarīyeh, 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 2 weather stations near enough to contribute to our estimation of the temperature and dew point in Torbat-e Ḩeydarīyeh.

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

The stations contributing to this reconstruction are:

To get a sense of how much these sources agree with each other, you can view a comparison of Torbat-e Ḩeydarīyeh and the stations that contribute to our estimates of its temperature history and climate. Please note that each source's contribution is adjusted for elevation and the relative change present in the MERRA-2 data.

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 © OpenStreetMap contributors.

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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.

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