Climate and Average Weather Year Round in Qohūrd-e ‘Olyā Iran

In Qohūrd-e ‘Olyā, the summers are hot, arid, and clear and the winters are very cold, snowy, windy, and partly cloudy. Over the course of the year, the temperature typically varies from 20°F to 91°F and is rarely below 10°F or above 97°F.

Based on the beach/pool score, the best time of year to visit Qohūrd-e ‘Olyā for hot-weather activities is from late June to late August.

The hot season lasts for 3.3 months, from June 6 to September 17, with an average daily high temperature above 80°F. The hottest month of the year in Qohūrd-e ‘Olyā is July, with an average high of 91°F and low of 61°F.

The cold season lasts for 3.5 months, from November 24 to March 8, with an average daily high temperature below 48°F. The coldest month of the year in Qohūrd-e ‘Olyā is January, with an average low of 21°F and high of 37°F.

In Qohūrd-e ‘Olyā, 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 Qohūrd-e ‘Olyā begins around May 23 and lasts for 4.6 months, ending around October 10.

The clearest month of the year in Qohūrd-e ‘Olyā is August, during which on average the sky is clear, mostly clear, or partly cloudy 100% of the time.

The cloudier part of the year begins around October 10 and lasts for 7.4 months, ending around May 23.

The cloudiest month of the year in Qohūrd-e ‘Olyā is December, during which on average the sky is overcast or mostly cloudy 38% of the time.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days in Qohūrd-e ‘Olyā varies throughout the year.

The wetter season lasts 7.2 months, from October 9 to May 14, with a greater than 11% chance of a given day being a wet day. The month with the most wet days in Qohūrd-e ‘Olyā is November, with an average of 5.5 days with at least 0.04 inches of precipitation.

The drier season lasts 4.8 months, from May 14 to October 9. The month with the fewest wet days in Qohūrd-e ‘Olyā is July, with an average of 0.6 days with at least 0.04 inches of precipitation.

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 in Qohūrd-e ‘Olyā changes throughout the year.

Rain alone is the most common for 11 months, from February 3 to December 29. The month with the most days of rain alone in Qohūrd-e ‘Olyā is April, with an average of 4.7 days.

Snow alone is the most common for 1.2 months, from December 29 to February 3. The month with the most days of snow alone in Qohūrd-e ‘Olyā is January, with an average of 1.9 days.

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. Qohūrd-e ‘Olyā experiences some seasonal variation in monthly rainfall.

The rainy period of the year lasts for 7.9 months, from September 23 to May 21, with a sliding 31-day rainfall of at least 0.5 inches. The month with the most rain in Qohūrd-e ‘Olyā is November, with an average rainfall of 1.4 inches.

The rainless period of the year lasts for 4.1 months, from May 21 to September 23. The month with the least rain in Qohūrd-e ‘Olyā is July, with an average rainfall of 0.1 inches.

Snowfall

As with rainfall, we consider the snowfall accumulated over a sliding 31-day period centered around each day of the year. Qohūrd-e ‘Olyā experiences significant seasonal variation in monthly snowfall.

The snowy period of the year lasts for 4.5 months, from November 6 to March 22, with a sliding 31-day snowfall of at least 1.0 inches. The month with the most snow in Qohūrd-e ‘Olyā is January, with an average snowfall of 4.5 inches.

The snowless period of the year lasts for 7.5 months, from March 22 to November 6. The least snow falls around July 26, with an average total accumulation of 0.0 inches.

The length of the day in Qohūrd-e ‘Olyā varies significantly over the course of the year. In 2024, the shortest day is December 21, with 9 hours, 46 minutes of daylight; the longest day is June 21, with 14 hours, 33 minutes of daylight.

The earliest sunrise is at 5:01 AM on June 13, and the latest sunrise is 2 hours, 25 minutes later at 7:27 AM on January 8. The earliest sunset is at 5:04 PM on December 5, and the latest sunset is 2 hours, 32 minutes later at 7:36 PM on June 29.

Daylight saving time (DST) is not observed in Qohūrd-e ‘Olyā during 2024.

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

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 Qohūrd-e ‘Olyā, 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.

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 Qohūrd-e ‘Olyā experiences mild seasonal variation over the course of the year.

The windier part of the year lasts for 3.6 months, from January 15 to May 2, with average wind speeds of more than 9.5 miles per hour. The windiest month of the year in Qohūrd-e ‘Olyā is March, with an average hourly wind speed of 10.3 miles per hour.

The calmer time of year lasts for 8.4 months, from May 2 to January 15. The calmest month of the year in Qohūrd-e ‘Olyā is October, with an average hourly wind speed of 8.6 miles per hour.

The predominant average hourly wind direction in Qohūrd-e ‘Olyā varies throughout the year.

The wind is most often from the east for 2.9 months, from June 15 to September 11, with a peak percentage of 61% on July 31. The wind is most often from the west for 2.7 months, from September 11 to December 3 and for 6.0 months, from December 15 to June 15, with a peak percentage of 45% on October 5. The wind is most often from the south for 1.7 weeks, from December 3 to December 15, with a peak percentage of 40% on December 11.

To characterize how pleasant the weather is in Qohūrd-e ‘Olyā 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 Qohūrd-e ‘Olyā for general outdoor tourist activities are from late May to mid July and from late July to late September, with a peak score in the third week of June.

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 Qohūrd-e ‘Olyā for hot-weather activities is from late June to late August, with a peak score in the last week of July.

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.

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 Qohūrd-e ‘Olyā typically lasts for 6.5 months (198 days), from around April 16 to around October 30, rarely starting before March 28 or after May 7, and rarely ending before October 11 or after November 16.

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 Qohūrd-e ‘Olyā should appear around April 19, only rarely appearing before April 4 or after May 3.

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 3.3 months, from May 14 to August 22, with an average daily incident shortwave energy per square meter above 7.7 kWh. The brightest month of the year in Qohūrd-e ‘Olyā is June, with an average of 8.7 kWh.

The darker period of the year lasts for 3.5 months, from October 30 to February 13, with an average daily incident shortwave energy per square meter below 4.1 kWh. The darkest month of the year in Qohūrd-e ‘Olyā is December, with an average of 2.9 kWh.

For the purposes of this report, the geographical coordinates of Qohūrd-e ‘Olyā are 35.440 deg latitude, 48.074 deg longitude, and 6,342 ft elevation.

The topography within 2 miles of Qohūrd-e ‘Olyā contains only modest variations in elevation, with a maximum elevation change of 394 feet and an average elevation above sea level of 6,394 feet. Within 10 miles contains only modest variations in elevation (1,850 feet). Within 50 miles contains very significant variations in elevation (6,601 feet).

The area within 2 miles of Qohūrd-e ‘Olyā is covered by shrubs (74%) and cropland (11%), within 10 miles by shrubs (66%) and sparse vegetation (21%), and within 50 miles by shrubs (46%) and sparse vegetation (26%).