Fall Weather in Jianshan China

Daily high temperatures decrease by 27°F, from 82°F to 54°F, rarely falling below 47°F or exceeding 87°F.

Daily low temperatures decrease by 28°F, from 67°F to 38°F, rarely falling below 32°F or exceeding 71°F.

For reference, on July 25, the hottest day of the year, temperatures in Jianshan typically range from 72°F to 85°F, while on January 19, the coldest day of the year, they range from 32°F to 47°F.

The figure below shows you a compact characterization of the hourly average fall temperatures. 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.

Winston-Salem, United States (7,859 miles away) is the far-away foreign place with temperatures most similar to Jianshan (view comparison).

© OpenStreetMap contributors

Compare Jianshan to another city:

CompareMap

The fall in Jianshan experiences decreasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy decreasing from 53% to 41%.

The clearest day of the fall is November 30, with clear, mostly clear, or partly cloudy conditions 59% of the time.

For reference, on July 3, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 67%, while on January 14, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 63%.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Jianshan, the chance of a wet day over the course of the fall is very rapidly decreasing, starting the season at 33% and ending it at 13%.

For reference, the year's highest daily chance of a wet day is 49% on July 4, and its lowest chance is 7% on December 20.

Rainfall

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

The average sliding 31-day rainfall during the fall in Jianshan is very rapidly decreasing, starting the season at 4.9 inches, when it rarely exceeds 8.5 inches or falls below 1.8 inches, and ending the season at 0.9 inches, when it rarely exceeds 1.7 inches or falls below 0.2 inches.

Over the course of the fall in Jianshan, the length of the day is very rapidly decreasing. From the start to the end of the season, the length of the day decreases by 2 hours, 21 minutes, implying an average daily decrease of 1 minute, 34 seconds, and weekly decrease of 11 minutes, 0 seconds.

The shortest day of the fall is November 30, with 10 hours, 24 minutes of daylight and the longest day is September 1, with 12 hours, 45 minutes of daylight.

The earliest sunrise of the fall in Jianshan is 6:21 AM on September 1 and the latest sunrise is 1 hour, 0 minutes later at 7:20 AM on November 30.

The latest sunset is 7:06 PM on September 1 and the earliest sunset is 1 hour, 22 minutes earlier at 5:44 PM on November 30.

Daylight saving time is not observed in Jianshan during 2024.

For reference, on June 20, the longest day of the year, the Sun rises at 5:44 AM and sets 14 hours, 3 minutes later, at 7:47 PM, while on December 21, the shortest day of the year, it rises at 7:35 AM and sets 10 hours, 14 minutes later, at 5:49 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 the fall of 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 Jianshan is very rapidly decreasing during the fall, falling from 57% to 0% over the course of the season.

For reference, on July 23, the muggiest day of the year, there are muggy conditions 95% of the time, while on November 25, 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 Jianshan is gradually decreasing during the fall, decreasing from 5.0 miles per hour to 4.5 miles per hour over the course of the season.

For reference, on March 26, the windiest day of the year, the daily average wind speed is 5.9 miles per hour, while on December 5, the calmest day of the year, the daily average wind speed is 4.4 miles per hour.

The wind direction in Jianshan during the fall is predominantly out of the east from September 1 to November 13 and the south from November 13 to November 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 Jianshan typically lasts for 8.9 months (272 days), from around March 4 to around December 2, rarely starting before February 10 or after March 24, and rarely ending before November 11 or after December 19.

The fall in Jianshan is more likely than not fully within the growing season, with the chance that a given day is in the growing season rapidly decreasing from 100% to 54% over the course of the 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 Jianshan are very rapidly increasing during the fall, increasing by 1,039°F, from 3,451°F to 4,489°F, over the course of the season.

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 Jianshan is very rapidly decreasing during the fall, falling by 2.5 kWh, from 5.3 kWh to 2.8 kWh, over the course of the season.

For the purposes of this report, the geographical coordinates of Jianshan are 29.703 deg latitude, 108.999 deg longitude, and 1,883 ft elevation.

The topography within 2 miles of Jianshan contains very significant variations in elevation, with a maximum elevation change of 1,598 feet and an average elevation above sea level of 2,148 feet. Within 10 miles contains very significant variations in elevation (4,049 feet). Within 50 miles also contains extreme variations in elevation (5,699 feet).

The area within 2 miles of Jianshan is covered by trees (69%) and cropland (27%), within 10 miles by trees (73%) and cropland (16%), and within 50 miles by trees (53%) and grassland (19%).