Climate and Average Weather Year Round in Khirdalan Azerbaijan

In Khirdalan, the summers are hot, humid, arid, and clear; the winters are long, very cold, snowy, and partly cloudy; and it is windy year round. Over the course of the year, the temperature typically varies from 34°F to 90°F and is rarely below 27°F or above 98°F.

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

The hot season lasts for 3.3 months, from June 1 to September 11, with an average daily high temperature above 81°F. The hottest month of the year in Khirdalan is July, with an average high of 89°F and low of 71°F.

The cool season lasts for 3.9 months, from November 24 to March 21, with an average daily high temperature below 53°F. The coldest month of the year in Khirdalan is January, with an average low of 34°F and high of 44°F.

In Khirdalan, the average percentage of the sky covered by clouds experiences extreme seasonal variation over the course of the year.

The clearer part of the year in Khirdalan begins around May 21 and lasts for 4.6 months, ending around October 8.

The clearest month of the year in Khirdalan is July, during which on average the sky is clear, mostly clear, or partly cloudy 95% of the time.

The cloudier part of the year begins around October 8 and lasts for 7.4 months, ending around May 21.

The cloudiest month of the year in Khirdalan is January, during which on average the sky is overcast or mostly cloudy 52% 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 Khirdalan varies throughout the year.

The wetter season lasts 8.2 months, from September 9 to May 15, with a greater than 9% chance of a given day being a wet day. The month with the most wet days in Khirdalan is October, with an average of 4.4 days with at least 0.04 inches of precipitation.

The drier season lasts 3.8 months, from May 15 to September 9. The month with the fewest wet days in Khirdalan is July, with an average of 0.8 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. The month with the most days of rain alone in Khirdalan is October, with an average of 4.4 days. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 15% on October 28.

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. Khirdalan experiences some seasonal variation in monthly rainfall.

The rainy period of the year lasts for 7.9 months, from September 5 to May 3, with a sliding 31-day rainfall of at least 0.5 inches. The month with the most rain in Khirdalan is October, with an average rainfall of 1.1 inches.

The rainless period of the year lasts for 4.1 months, from May 3 to September 5. The month with the least rain in Khirdalan is July, with an average rainfall of 0.2 inches.

Snowfall

As with rainfall, we consider the snowfall accumulated over a sliding 31-day period centered around each day of the year. Khirdalan experiences some seasonal variation in monthly snowfall.

The snowy period of the year lasts for 3.0 weeks, from January 27 to February 17, with a sliding 31-day snowfall of at least 1.0 inches. The month with the most snow in Khirdalan is February, with an average snowfall of 1.1 inches.

The snowless period of the year lasts for 11 months, from February 17 to January 27. The least snow falls around July 28, with an average total accumulation of 0.0 inches.

The length of the day in Khirdalan varies significantly over the course of the year. In 2024, the shortest day is December 21, with 9 hours, 17 minutes of daylight; the longest day is June 21, with 15 hours, 4 minutes of daylight.

The earliest sunrise is at 5:10 AM on June 14, and the latest sunrise is 2 hours, 54 minutes later at 8:04 AM on January 5. The earliest sunset is at 5:14 PM on December 7, and the latest sunset is 3 hours, 1 minute later at 8:15 PM on June 27.

Daylight saving time (DST) is not observed in Khirdalan 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.

Khirdalan experiences extreme seasonal variation in the perceived humidity.

The muggier period of the year lasts for 3.5 months, from June 15 to September 29, during which time the comfort level is muggy, oppressive, or miserable at least 13% of the time. The month with the most muggy days in Khirdalan is August, with 14.6 days that are muggy or worse.

The least muggy day of the year is February 25, when muggy conditions are essentially unheard of.

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 Khirdalan experiences significant seasonal variation over the course of the year.

The windier part of the year lasts for 9.5 months, from June 17 to April 1, with average wind speeds of more than 10.5 miles per hour. The windiest month of the year in Khirdalan is November, with an average hourly wind speed of 11.9 miles per hour.

The calmer time of year lasts for 2.5 months, from April 1 to June 17. The calmest month of the year in Khirdalan is May, with an average hourly wind speed of 9.2 miles per hour.

The predominant average hourly wind direction in Khirdalan varies throughout the year.

The wind is most often from the north for 3.6 weeks, from January 12 to February 6; for 1.0 months, from February 28 to March 29; for 5.9 months, from April 7 to October 3; and for 2.6 weeks, from November 8 to November 26, with a peak percentage of 62% on July 24. The wind is most often from the south for 3.1 weeks, from February 6 to February 28; for 1.3 weeks, from March 29 to April 7; for 1.2 months, from October 3 to November 8; and for 1.5 months, from November 26 to January 12, with a peak percentage of 39% on February 21.

Khirdalan is located near a large body of water (e.g., ocean, sea, or large lake). This section reports on the wide-area average surface temperature of that water.

The average water temperature experiences significant seasonal variation over the course of the year.

The time of year with warmer water lasts for 3.0 months, from June 23 to September 24, with an average temperature above 72°F. The month of the year in Khirdalan with the warmest water is August, with an average temperature of 78°F.

The time of year with cooler water lasts for 4.3 months, from December 10 to April 21, with an average temperature below 51°F. The month of the year in Khirdalan with the coolest water is February, with an average temperature of 45°F.

To characterize how pleasant the weather is in Khirdalan 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 Khirdalan for general outdoor tourist activities are from mid May to early July and from late August to early October, with a peak score in the second week of September.

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 Khirdalan for hot-weather activities is from late June to early September, with a peak score in the third 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 Khirdalan typically lasts for 9.2 months (281 days), from around March 7 to around December 13, rarely starting before February 12 or after March 29, and rarely ending before November 21 or after January 5.

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 Khirdalan should appear around April 11, only rarely appearing before March 28 or after April 24.

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 8 to August 18, with an average daily incident shortwave energy per square meter above 6.5 kWh. The brightest month of the year in Khirdalan is June, with an average of 7.6 kWh.

The darker period of the year lasts for 3.7 months, from October 26 to February 16, with an average daily incident shortwave energy per square meter below 3.0 kWh. The darkest month of the year in Khirdalan is December, with an average of 1.8 kWh.

For the purposes of this report, the geographical coordinates of Khirdalan are 40.448 deg latitude, 49.755 deg longitude, and 246 ft elevation.

The topography within 2 miles of Khirdalan contains significant variations in elevation, with a maximum elevation change of 778 feet and an average elevation above sea level of 289 feet. Within 10 miles contains significant variations in elevation (1,260 feet). Within 50 miles contains very significant variations in elevation (5,223 feet).

The area within 2 miles of Khirdalan is covered by sparse vegetation (51%) and bare soil (28%), within 10 miles by sparse vegetation (42%) and water (14%), and within 50 miles by water (65%) and sparse vegetation (14%).