September Weather in Chayek Kyrgyzstan

Daily high temperatures decrease by 12°F, from 78°F to 65°F, rarely falling below 56°F or exceeding 86°F.

Daily low temperatures decrease by 8°F, from 50°F to 41°F, rarely falling below 35°F or exceeding 55°F.

For reference, on August 3, the hottest day of the year, temperatures in Chayek typically range from 55°F to 83°F, while on January 14, the coldest day of the year, they range from 10°F to 30°F.

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

Chinook, United States (6,185 miles away) and Fryeburg, United States (6,133 miles) are the far-away foreign places with temperatures most similar to Chayek (view comparison).

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The month of September in Chayek experiences very rapidly increasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy increasing from 11% to 27%.

The clearest day of the month is September 1, with clear, mostly clear, or partly cloudy conditions 89% of the time.

For reference, on February 8, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 63%, while on August 7, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 91%.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Chayek, the chance of a wet day over the course of September is increasing, starting the month at 5% and ending it at 10%.

For reference, the year's highest daily chance of a wet day is 22% on May 11, and its lowest chance is 4% on August 30.

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 September in Chayek is gradually increasing, starting the month at 0.3 inches, when it rarely exceeds 0.7 inches, and ending the month at 0.5 inches, when it rarely exceeds 1.2 inches.

Over the course of September in Chayek, the length of the day is rapidly decreasing. From the start to the end of the month, the length of the day decreases by 1 hour, 20 minutes, implying an average daily decrease of 2 minutes, 46 seconds, and weekly decrease of 19 minutes, 24 seconds.

The shortest day of the month is September 30, with 11 hours, 47 minutes of daylight and the longest day is September 1, with 13 hours, 7 minutes of daylight.

The earliest sunrise of the month in Chayek is 6:27 AM on September 1 and the latest sunrise is 30 minutes later at 6:57 AM on September 30.

The latest sunset is 7:35 PM on September 1 and the earliest sunset is 50 minutes earlier at 6:45 PM on September 30.

Daylight saving time is not observed in Chayek during 2024.

For reference, on June 20, the longest day of the year, the Sun rises at 5:26 AM and sets 15 hours, 14 minutes later, at 8:40 PM, while on December 21, the shortest day of the year, it rises at 8:26 AM and sets 9 hours, 7 minutes later, at 5:33 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 September 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 Chayek is essentially constant during September, remaining around 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 Chayek is essentially constant during September, remaining within 0.1 miles per hour of 5.4 miles per hour throughout.

For reference, on April 17, the windiest day of the year, the daily average wind speed is 5.8 miles per hour, while on December 23, the calmest day of the year, the daily average wind speed is 4.5 miles per hour.

The highest daily average wind speed during September is 5.6 miles per hour on September 25.

The wind direction in Chayek during September is predominantly out of the west from September 1 to September 13 and the south from September 13 to September 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 Chayek typically lasts for 5.6 months (172 days), from around April 25 to around October 14, rarely starting before April 5 or after May 15, and rarely ending before September 25 or after November 2.

The month of September in Chayek is more likely than not fully within the growing season, with the chance that a given day is in the growing season decreasing from 98% to 83% 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 Chayek are increasing during September, increasing by 284°F, from 1,774°F to 2,057°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 Chayek is rapidly decreasing during September, falling by 1.7 kWh, from 6.6 kWh to 4.9 kWh, over the course of the month.

For the purposes of this report, the geographical coordinates of Chayek are 41.928 deg latitude, 74.517 deg longitude, and 5,423 ft elevation.

The topography within 2 miles of Chayek contains very significant variations in elevation, with a maximum elevation change of 850 feet and an average elevation above sea level of 5,648 feet. Within 10 miles contains very significant variations in elevation (7,024 feet). Within 50 miles also contains extreme variations in elevation (12,726 feet).

The area within 2 miles of Chayek is covered by bare soil (39%), sparse vegetation (36%), and cropland (11%), within 10 miles by sparse vegetation (43%) and bare soil (24%), and within 50 miles by grassland (31%) and bare soil (29%).