April Weather in Torbat-e Ḩeydarīyeh Iran

Daily high temperatures increase by 12°F, from 63°F to 75°F, rarely falling below 52°F or exceeding 85°F.

Daily low temperatures increase by 11°F, from 42°F to 53°F, rarely falling below 34°F or exceeding 61°F.

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.

The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on April. 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.

Wichita, United States (7,184 miles away) and Scott City, 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 month of April in Torbat-e Ḩeydarīyeh experiences gradually decreasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy decreasing from 35% to 31%.

The clearest day of the month is April 30, 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%.

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 April is gradually decreasing, starting the month at 12% and ending it at 9%.

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.

Rainfall

To show variation within the month and not just the monthly total, we show the rainfall accumulated over a sliding 31-day period centered around each day.

The average sliding 31-day rainfall during April in Torbat-e Ḩeydarīyeh is gradually decreasing, starting the month at 0.8 inches, when it rarely exceeds 1.6 inches or falls below 0.1 inches, and ending the month at 0.5 inches, when it rarely exceeds 1.5 inches.

Over the course of April in Torbat-e Ḩeydarīyeh, the length of the day is rapidly increasing. From the start to the end of the month, the length of the day increases by 1 hour, 1 minute, implying an average daily increase of 2 minutes, 5 seconds, and weekly increase of 14 minutes, 37 seconds.

The shortest day of the month is April 1, with 12 hours, 35 minutes of daylight and the longest day is April 30, with 13 hours, 36 minutes of daylight.

The latest sunrise of the month in Torbat-e Ḩeydarīyeh is 5:19 AM on April 1 and the earliest sunrise is 37 minutes earlier at 4:42 AM on April 30.

The earliest sunset is 5:54 PM on April 1 and the latest sunset is 24 minutes later at 6:18 PM on April 30.

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.

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.

The figure below presents a compact representation of key lunar data for April 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.

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 April, 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.

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 essentially constant during April, remaining within 0.2 miles per hour of 8.3 miles per hour throughout.

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.

The hourly average wind direction in Torbat-e Ḩeydarīyeh throughout April is predominantly from the east, with a peak proportion of 46% on April 30.

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 month of April in Torbat-e Ḩeydarīyeh is more likely than not fully within the growing season, with the chance that a given day is in the growing season rapidly increasing from 75% to 100% over the course of the month.

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 increasing during April, increasing by 307°F, from 120°F to 427°F, over the course of the month.

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 increasing during April, rising by 1.0 kWh, from 6.1 kWh to 7.2 kWh, over the course of the month.

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%).