Average Weather in Quedian China
In Quedian, the summers are hot, oppressive, wet, and mostly cloudy and the winters are very cold and partly cloudy. Over the course of the year, the temperature typically varies from 31°F to 90°F and is rarely below 23°F or above 97°F.
Based on the tourism score, the best time of year to visit Quedian for warm-weather activities is from early September to mid October.
The hot season lasts for 3.5 months, from May 30 to September 14, with an average daily high temperature above 81°F. The hottest day of the year is July 28, with an average high of 90°F and low of 78°F.
The cold season lasts for 3.1 months, from December 2 to March 5, with an average daily high temperature below 53°F. The coldest day of the year is January 19, with an average low of 31°F and high of 44°F.
Average High and Low Temperature
The figure below shows you a compact characterization of the entire year of hourly average temperatures. The horizontal axis is the day of the year, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day.
Average Hourly Temperature
In Quedian, 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 Quedian begins around August 31 and lasts for 6.2 months, ending around March 7. On December 13, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 71% of the time, and overcast or mostly cloudy 29% of the time.
The cloudier part of the year begins around March 7 and lasts for 5.8 months, ending around August 31. On July 10, the cloudiest day of the year, the sky is overcast or mostly cloudy 69% of the time, and clear, mostly clear, or partly cloudy 31% of the time.
Cloud Cover Categories
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days in Quedian varies significantly throughout the year.
The wetter season lasts 6.0 months, from March 6 to September 5, with a greater than 29% chance of a given day being a wet day. The chance of a wet day peaks at 47% on July 5.
The drier season lasts 6.0 months, from September 5 to March 6. The smallest chance of a wet day is 12% on December 18.
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 throughout the year is rain alone, with a peak probability of 47% on July 5.
Daily Chance of Precipitation
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. Quedian experiences extreme seasonal variation in monthly rainfall.
Rain falls throughout the year in Quedian. The most rain falls during the 31 days centered around June 30, with an average total accumulation of 9.1 inches.
The least rain falls around December 28, with an average total accumulation of 1.0 inches.
Average Monthly Rainfall
We report snowfall in liquid-equivalent terms. The actual depth of new snowfall is typically between 5 and 10 times the liquid-equivalent amount, assuming the ground is frozen. Colder, drier snow tends to be on the higher end of that range and warmer, wetter snow on the lower end.
As with rainfall, we consider the snowfall accumulated over a sliding 31-day period centered around each day of the year. Quedian experiences some seasonal variation in monthly liquid-equivalent snowfall.
The snowy period of the year lasts for 2.2 months, from December 31 to March 7, with a sliding 31-day liquid-equivalent snowfall of at least 0.1 inches. The most snow falls during the 31 days centered around January 27, with an average total liquid-equivalent accumulation of 0.3 inches.
The snowless period of the year lasts for 9.8 months, from March 7 to December 31. The least snow falls around July 19, with an average total liquid-equivalent accumulation of 0.0 inches.
Average Liquid-Equivalent Monthly Snowfall
The length of the day in Quedian varies significantly over the course of the year. In 2018, the shortest day is December 22, with 10 hours, 7 minutes of daylight; the longest day is June 21, with 14 hours, 11 minutes of daylight.
Hours of Daylight and Twilight
The earliest sunrise is at 5:07 AM on June 11, and the latest sunrise is 2 hours, 5 minutes later at 7:12 AM on January 9. The earliest sunset is at 5:09 PM on December 4, and the latest sunset is 2 hours, 12 minutes later at 7:21 PM on June 30.
Daylight saving time (DST) is not observed in Quedian during 2018.
Sunrise & Sunset with Twilight
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.
Quedian experiences extreme seasonal variation in the perceived humidity.
The muggier period of the year lasts for 4.5 months, from May 12 to September 29, during which time the comfort level is muggy, oppressive, or miserable at least 25% of the time. The muggiest day of the year is July 24, with muggy conditions 100% of the time.
The least muggy day of the year is December 13, when muggy conditions are essentially unheard of.
Humidity Comfort Levels
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 Quedian experiences mild seasonal variation over the course of the year.
The windier part of the year lasts for 3.7 months, from January 29 to May 21, with average wind speeds of more than 7.0 miles per hour. The windiest day of the year is March 9, with an average hourly wind speed of 7.8 miles per hour.
The calmer time of year lasts for 8.3 months, from May 21 to January 29. The calmest day of the year is August 15, with an average hourly wind speed of 6.2 miles per hour.
Average Wind Speed
The predominant average hourly wind direction in Quedian varies throughout the year.
The wind is most often from the east for 2.1 months, from February 13 to April 15; for 3.4 weeks, from May 21 to June 14; and for 2.5 months, from August 8 to October 23, with a peak percentage of 47% on September 25. The wind is most often from the south for 1.2 months, from April 15 to May 21 and for 1.8 months, from June 14 to August 8, with a peak percentage of 52% on July 14. The wind is most often from the north for 3.6 months, from October 23 to February 13, with a peak percentage of 42% on January 1.
Best Time of Year to Visit
To characterize how pleasant the weather is in Quedian 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 time of year to visit Quedian for general outdoor tourist activities is from early September to mid October, with a peak score in the last 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 times of year to visit Quedian for hot-weather activities are from early to mid June and from early August to mid September, with a peak score in the last week of August.
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 Quedian typically lasts for 8.9 months (272 days), from around March 2 to around November 29, rarely starting before February 12 or after March 20, and rarely ending before November 13 or after December 15.
Time Spent in Various Temperature Bands and 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.
Based on growing degree days alone, the first spring blooms in Quedian should appear around March 16, only rarely appearing before March 1 or after April 1.
Growing Degree Days
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 significant seasonal variation over the course of the year.
The brighter period of the year lasts for 2.3 months, from April 25 to July 2, with an average daily incident shortwave energy per square meter above 5.4 kWh. The brightest day of the year is June 2, with an average of 6.0 kWh.
The darker period of the year lasts for 3.1 months, from November 6 to February 10, with an average daily incident shortwave energy per square meter below 3.5 kWh. The darkest day of the year is December 23, with an average of 2.9 kWh.
Average Daily Incident Shortwave Solar Energy
For the purposes of this report, the geographical coordinates of Quedian are 31.303 deg latitude, 116.839 deg longitude, and 230 ft elevation.
The topography within 2 miles of Quedian contains only modest variations in elevation, with a maximum elevation change of 377 feet and an average elevation above sea level of 217 feet. Within 10 miles contains only modest variations in elevation (2,234 feet). Within 50 miles contains large variations in elevation (5,774 feet).
The area within 2 miles of Quedian is covered by cropland (65%) and trees (31%), within 10 miles by trees (55%) and cropland (35%), and within 50 miles by cropland (44%) and trees (31%).
This report illustrates the typical weather in Quedian, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.
Temperature and Dew Point
There is only a single weather station, Hefei Luogang International Airport, in our network suitable to be used as a proxy for the historical temperature and dew point records of Quedian.
At a distance of 69 kilometers from Quedian, closer than our threshold of 150 kilometers, this station is deemed sufficiently nearby to be relied upon as our primary source for temperature and dew point records.
The station records are corrected for the elevation difference between the station and Quedian according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations.
Please note that the station records themselves may additionally have been back-filled using other nearby stations or the MERRA-2 reanalysis.
All data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Tables of the Sun, Moon and Planets , by Jean Meeus.
All other weather data, including cloud cover, precipitation, wind speed and direction, and solar flux, come from NASA's MERRA-2 Modern-Era Retrospective Analysis . This reanalysis combines a variety of wide-area measurements in a state-of-the-art global meteorological model to reconstruct the hourly history of weather throughout the world on a 50-kilometer grid.
Land Use data comes from the Global Land Cover SHARE database , published by the Food and Agriculture Organization of the United Nations.
Elevation data comes from the Shuttle Radar Topography Mission (SRTM) , published by NASA's Jet Propulsion Laboratory.
Names, locations, and time zones of places and some airports come from the GeoNames Geographical Database .
Time zones for aiports and weather stations are provided by AskGeo.com .
Maps are © Esri, with data from National Geographic, Esri, DeLorme, NAVTEQ, UNEP-WCMC, USGS, NASA, ESA, METI, NRCAN, GEBCO, NOAA, and iPC.
The information on this site is provided as is, without any assurances as to its accuracy or suitability for any purpose. Weather data is prone to errors, outages, and other defects. We assume no responsibility for any decisions made on the basis of the content presented on this site.
We draw particular cautious attention to our reliance on the MERRA-2 model-based reconstructions for a number of important data series. While having the tremendous advantages of temporal and spatial completeness, these reconstructions: (1) are based on computer models that may have model-based errors, (2) are coarsely sampled on a 50 km grid and are therefore unable to reconstruct the local variations of many microclimates, and (3) have particular difficulty with the weather in some coastal areas, especially small islands.
We further caution that our travel scores are only as good as the data that underpin them, that weather conditions at any given location and time are unpredictable and variable, and that the definition of the scores reflects a particular set of preferences that may not agree with those of any particular reader.