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Average Weather in Dong’an China

In Dong’an, the summers are hot, oppressive, wet, and mostly cloudy and the winters are short, cold, and mostly clear. Over the course of the year, the temperature typically varies from 34°F to 90°F and is rarely below 25°F or above 93°F.

Based on the tourism score, the best time of year to visit Dong’an for warm-weather activities is from mid September to mid October.

Climate Summary

coldcoolwarmhotwarmcoolJanFebMarAprMayJunJulAugSepOctNovDec72%72%21%21%clearovercastprecipitation: 10.6 inprecipitation: 10.6 in1.6 in1.6 inmuggy: 100%muggy: 100%0%0%drydrytourism score: 7.0tourism score: 7.00.30.3
Click on each chart for more information.

Temperature

The hot season lasts for 3.7 months, from May 30 to September 21, with an average daily high temperature above 82°F. The hottest day of the year is July 30, with an average high of 90°F and low of 76°F.

The cool season lasts for 2.8 months, from December 4 to February 27, with an average daily high temperature below 60°F. The coldest day of the year is January 19, with an average low of 34°F and high of 52°F.

Average High and Low Temperature

The daily average high (red line) and low (blue line) temperature, with 25th to 75th and 10th to 90th percentile bands. The thin dotted lines are the corresponding average perceived temperatures.

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

Average Hourly Temperature in Dong’anJanFebMarAprMayJunJulAugSepOctNovDec12 AM4 AM8 AM12 PM4 PM8 PM12 AMvery coldvery coldcoldcoldcoolcoolwarmhotvery coldcomfortablevery coldcomfortable
frigid 15°F freezing 32°F very cold 45°F cold 55°F cool 65°F comfortable 75°F warm 85°F hot 95°F sweltering
The average hourly temperature, color coded into bands. The shaded overlays indicate night and civil twilight.

Memphis, Tennessee, United States (7,635 miles away) and Bayboro, North Carolina, United States (7,902 miles) are the far-away foreign places with temperatures most similar to Dong’an (view comparison).

Clouds

In Dong’an, 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 Dong’an begins around September 4 and lasts for 6.4 months, ending around March 15. On October 23, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 72% of the time, and overcast or mostly cloudy 28% of the time.

The cloudier part of the year begins around March 15 and lasts for 5.6 months, ending around September 4. On July 4, the cloudiest day of the year, the sky is overcast or mostly cloudy 79% of the time, and clear, mostly clear, or partly cloudy 21% of the time.

Cloud Cover Categories

Cloud Cover Categories in Dong’anclearerclearercloudierJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%Oct 2372%Oct 2372%Jul 421%Jul 421%Sep 446%Sep 446%Mar 1547%Mar 1547%clearmostly clearpartly cloudyovercast
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
The percentage of time spent in each cloud cover band, categorized by the percentage of the sky covered by clouds.

Precipitation

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days in Dong’an varies significantly throughout the year.

The wetter season lasts 6.5 months, from February 12 to August 28, with a greater than 34% chance of a given day being a wet day. The chance of a wet day peaks at 53% on June 21.

The drier season lasts 5.5 months, from August 28 to February 12. The smallest chance of a wet day is 15% 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 53% on June 21.

Daily Chance of Precipitation

Daily Chance of Precipitation in Dong’anwetdrydryJanFebMarAprMayJunJulAugSepOctNovDec0%10%20%30%40%50%60%70%80%90%100%Jun 2153%Jun 2153%Dec 1815%Dec 1815%Feb 1234%Feb 1234%Aug 2834%Aug 2834%rainmixed
The percentage of days in which various types of precipitation are observed, excluding trace quantities: rain alone, snow alone, and mixed (both rain and snow fell in the same day).

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. Dong’an experiences extreme seasonal variation in monthly rainfall.

Rain falls throughout the year in Dong’an. The most rain falls during the 31 days centered around June 18, with an average total accumulation of 10.6 inches.

The least rain falls around December 22, with an average total accumulation of 1.5 inches.

Average Monthly Rainfall

The average rainfall (solid line) accumulated over the course of a sliding 31-day period centered on the day in question, with 25th to 75th and 10th to 90th percentile bands. The thin dotted line is the corresponding average liquid-equivalent snowfall.

Snowfall

The sliding 31-day liquid-equivalent quantity of snowfall in Dong’an does not vary significantly over the course of the year, staying within 0.1 inches of 0.1 inches throughout.

Average Liquid-Equivalent Monthly Snowfall

Average Liquid-Equivalent Monthly Snowfall in Dong’ansnowJanFebMarAprMayJunJulAugSepOctNovDec0 in2 in4 in6 in8 in10 in12 inJan 150.2 inJan 150.2 inJul 250.0 inJul 250.0 inDec 270.1 inDec 270.1 in
The average liquid-equivalent snowfall (solid line) accumulated over the course of a sliding 31-day period centered on the day in question, with 25th to 75th and 10th to 90th percentile bands. The thin dotted line is the corresponding average rainfall.

Sun

The length of the day in Dong’an varies over the course of the year. In 2019, the shortest day is December 22, with 10 hours, 18 minutes of daylight; the longest day is June 21, with 14 hours, 0 minutes of daylight.

Hours of Daylight and Twilight

Hours of Daylight and Twilight in Dong’anJanFebMarAprMayJunJulAugSepOctNovDec0 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hr12 hr, 6 minMar 2112 hr, 6 minMar 2114 hr, 0 minJun 2114 hr, 0 minJun 2112 hr, 8 minSep 2312 hr, 8 minSep 2310 hr, 18 minDec 2210 hr, 18 minDec 22nightnightday
The number of hours during which the Sun is visible (black line). From bottom (most yellow) to top (most gray), the color bands indicate: full daylight, twilight (civil, nautical, and astronomical), and full night.

The earliest sunrise is at 5:06 AM on June 11, and the latest sunrise is 1 hour, 54 minutes later at 7:00 AM on January 12. The earliest sunset is at 5:07 PM on December 1, and the latest sunset is 2 hours, 1 minute later at 7:08 PM on July 1.

Daylight saving time (DST) is not observed in Dong’an during 2019.

Sunrise & Sunset with Twilight

Sunrise & Sunset with Twilight in Dong’anJanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMJun 115:06 AMJun 115:06 AM7:08 PMJul 17:08 PMJul 1Dec 15:07 PMDec 15:07 PM7:00 AMJan 127:00 AMJan 12daynightnightnightnightSolarMidnightSolarMidnightSolarNoonSunriseSunset
The solar day over the course of the year 2019. From bottom to top, the black lines are the previous solar midnight, sunrise, solar noon, sunset, and the next solar midnight. The day, twilights (civil, nautical, and astronomical), and night are indicated by the color bands from yellow to gray.

Humidity

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.

Dong’an experiences extreme seasonal variation in the perceived humidity.

The muggier period of the year lasts for 5.4 months, from April 29 to October 9, 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 28, with muggy conditions 100% of the time.

The least muggy day of the year is December 27, when muggy conditions are essentially unheard of.

Humidity Comfort Levels

Humidity Comfort Levels in Dong’anmuggyJanFebMarAprMayJunJulAugSepOctNovDec0%10%20%30%40%50%60%70%80%90%100%Dec 270%Dec 270%100%Jul 28100%Jul 28Apr 2925%Apr 2925%Oct 925%Oct 925%miserablemiserableoppressiveoppressivedrydryhumidhumidmuggymuggycomfortablecomfortable
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The percentage of time spent at various humidity comfort levels, categorized by dew point.

Wind

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 Dong’an experiences mild seasonal variation over the course of the year.

The windier part of the year lasts for 3.4 months, from January 17 to April 28, with average wind speeds of more than 6.8 miles per hour. The windiest day of the year is March 10, with an average hourly wind speed of 7.5 miles per hour.

The calmer time of year lasts for 8.6 months, from April 28 to January 17. The calmest day of the year is August 4, with an average hourly wind speed of 6.0 miles per hour.

Average Wind Speed

The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands.

The predominant average hourly wind direction in Dong’an varies throughout the year.

The wind is most often from the west for 1.0 weeks, from June 27 to July 4 and for 1.4 weeks, from July 14 to July 24, with a peak percentage of 34% on July 14. The wind is most often from the south for 1.4 weeks, from July 4 to July 14, with a peak percentage of 35% on July 10. The wind is most often from the east for 11 months, from July 24 to June 27, with a peak percentage of 52% on January 1.

Wind Direction

Wind Direction in Dong’anESEJanFebMarAprMayJunJulAugSepOctNovDec0%100%20%80%40%60%60%40%80%20%100%0%westeastnorthsouth
northeastsouthwest
The percentage of hours in which the mean wind direction is from each of the four cardinal wind directions, excluding hours in which the mean wind speed is less than 1.0 mph. The lightly tinted areas at the boundaries are the percentage of hours spent in the implied intermediate directions (northeast, southeast, southwest, and northwest).

Best Time of Year to Visit

To characterize how pleasant the weather is in Dong’an 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 Dong’an for general outdoor tourist activities is from mid September to mid October, with a peak score in the last week of September.

Tourism Score

Tourism Score in Dong’anJanFebMarAprMayJunJulAugSepOctNovDec02468107.07.00.30.35.75.73.93.9 precipitationprecipitationcloudscloudstemperaturetemperaturetourism score
The tourism score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

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 Dong’an for hot-weather activities is from mid July to mid September, with a peak score in the third week of August.

Beach/Pool Score

Beach/Pool Score in Dong’anbest timeJanFebMarAprMayJunJulAugSepOctNovDec02468105.75.70.00.0 precipitationprecipitationcloudscloudstemperaturetemperaturebeach/pool score
The beach/pool score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

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.

Growing Season

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 Dong’an typically lasts for 8.8 months (271 days), from around March 3 to around November 29, rarely starting before February 11 or after March 23, and rarely ending before November 11 or after December 18.

Time Spent in Various Temperature Bands and the Growing Season

Time Spent in Various Temperature Bands and the Growing Season in Dong’angrowing seasonJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%50%Mar 350%Mar 350%Nov 2950%Nov 2990%Mar 2390%Mar 2390%Nov 1190%Nov 1110%Feb 1110%Feb 1110%Dec 1810%Dec 180%Jan 110%Jan 11Jul 18100%Jul 18100%very coldcoldwarmhotcoolcomfortable
frigid 15°F freezing 32°F very cold 45°F cold 55°F cool 65°F comfortable 75°F warm 85°F hot 95°F sweltering
The percentage of time spent in various temperature bands. The black line is the percentage chance that a given day is 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.

Based on growing degree days alone, the first spring blooms in Dong’an should appear around February 20, only rarely appearing before February 7 or after March 10.

Growing Degree Days

Growing Degree Days in Dong’anJanFebMarAprMayJunJulAugSepOctNovDec0°F1,000°F2,000°F3,000°F4,000°F5,000°FFeb 2085°FFeb 2085°FMay 10900°FMay 10900°FDec 315,623°FDec 315,623°F
The average growing degree days accumulated over the course of the year, with 25th to 75th and 10th to 90th percentile bands.

Solar Energy

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 some seasonal variation over the course of the year.

The brighter period of the year lasts for 4.9 months, from April 26 to September 21, with an average daily incident shortwave energy per square meter above 5.1 kWh. The brightest day of the year is May 25, with an average of 5.6 kWh.

The darker period of the year lasts for 2.9 months, from November 11 to February 9, with an average daily incident shortwave energy per square meter below 3.6 kWh. The darkest day of the year is January 7, with an average of 3.1 kWh.

Average Daily Incident Shortwave Solar Energy

Average Daily Incident Shortwave Solar Energy in Dong’anbrightdarkdarkJanFebMarAprMayJunJulAugSepOctNovDec0 kWh1 kWh2 kWh3 kWh4 kWh5 kWh6 kWh7 kWh8 kWhMay 255.6 kWhMay 255.6 kWhJan 73.1 kWhJan 73.1 kWhSep 215.1 kWhSep 215.1 kWhNov 113.6 kWhNov 113.6 kWh
The average daily shortwave solar energy reaching the ground per square meter (orange line), with 25th to 75th and 10th to 90th percentile bands.

Topography

For the purposes of this report, the geographical coordinates of Dong’an are 28.983 deg latitude, 118.657 deg longitude, and 456 ft elevation.

The topography within 2 miles of Dong’an contains very significant variations in elevation, with a maximum elevation change of 1,079 feet and an average elevation above sea level of 502 feet. Within 10 miles contains very significant variations in elevation (4,295 feet). Within 50 miles also contains extreme variations in elevation (5,696 feet).

The area within 2 miles of Dong’an is covered by trees (46%), grassland (27%), and cropland (24%), within 10 miles by trees (63%) and cropland (23%), and within 50 miles by trees (73%) and cropland (15%).

Data Sources

This report illustrates the typical weather in Dong’an, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.

Dong’an is further than 200 kilometers from the nearest reliable weather station, so the weather-related data on this page were taken entirely from NASA's MERRA-2 satellite-era reanalysis . 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.

The temperature and dew point estimates are corrected for the difference between the reference elevation of the MERRA-2 grid cell and the elevation of Dong’an, according to the International Standard Atmosphere .

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.

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.

Disclaimer

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.