September Weather in Huanggong China

Daily high temperatures decrease by 15°F, from 88°F to 73°F, rarely falling below 62°F or exceeding 97°F.

Daily low temperatures decrease by 13°F, from 63°F to 50°F, rarely falling below 41°F or exceeding 70°F.

For reference, on July 22, the hottest day of the year, temperatures in Huanggong typically range from 72°F to 96°F, while on January 18, the coldest day of the year, they range from 13°F to 26°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.

Omaha, United States (6,513 miles away) is the far-away foreign place with temperatures most similar to Huanggong (view comparison).

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The month of September in Huanggong experiences increasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy increasing from 23% to 31%.

The clearest day of the month is September 2, with clear, mostly clear, or partly cloudy conditions 77% of the time.

For reference, on January 31, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 51%, while on August 20, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 78%.

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

For reference, the year's highest daily chance of a wet day is 15% on July 13, and its lowest chance is 0% on January 23.

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 Huanggong is essentially constant, remaining about 0.3 inches throughout, and rarely exceeding 0.7 inches.

Over the course of September in Huanggong, 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, 28 minutes, implying an average daily decrease of 3 minutes, 3 seconds, and weekly decrease of 21 minutes, 18 seconds.

The shortest day of the month is September 30, with 11 hours, 45 minutes of daylight and the longest day is September 1, with 13 hours, 14 minutes of daylight.

The earliest sunrise of the month in Huanggong is 5:43 AM on September 1 and the latest sunrise is 34 minutes later at 6:17 AM on September 30.

The latest sunset is 6:57 PM on September 1 and the earliest sunset is 54 minutes earlier at 6:03 PM on September 30.

Daylight saving time is not observed in Huanggong during 2024.

For reference, on June 20, the longest day of the year, the Sun rises at 4:35 AM and sets 15 hours, 34 minutes later, at 8:09 PM, while on December 21, the shortest day of the year, it rises at 7:54 AM and sets 8 hours, 49 minutes later, at 4:43 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 Huanggong is essentially constant during September, remaining around 0% throughout.

For reference, on July 17, 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 Huanggong is essentially constant during September, remaining within 0.1 miles per hour of 6.0 miles per hour throughout.

For reference, on May 2, the windiest day of the year, the daily average wind speed is 7.4 miles per hour, while on October 27, the calmest day of the year, the daily average wind speed is 5.6 miles per hour.

The hourly average wind direction in Huanggong throughout September is predominantly from the north, with a peak proportion of 44% on 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 Huanggong typically lasts for 6.7 months (204 days), from around April 6 to around October 27, rarely starting before March 18 or after April 23, and rarely ending before October 8 or after November 15.

The month of September in Huanggong is reliably fully 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 Huanggong are rapidly increasing during September, increasing by 531°F, from 3,584°F to 4,115°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 Huanggong is decreasing during September, falling by 1.5 kWh, from 5.8 kWh to 4.3 kWh, over the course of the month.

For the purposes of this report, the geographical coordinates of Huanggong are 44.583 deg latitude, 84.770 deg longitude, and 1,181 ft elevation.

The topography within 2 miles of Huanggong is essentially flat, with a maximum elevation change of 95 feet and an average elevation above sea level of 1,174 feet. Within 10 miles is essentially flat (673 feet). Within 50 miles contains significant variations in elevation (13,855 feet).

The area within 2 miles of Huanggong is covered by cropland (52%) and grassland (46%), within 10 miles by grassland (63%) and cropland (33%), and within 50 miles by grassland (56%) and cropland (16%).