Climate and Average Weather Year Round in Tianyu ChinaIn Tianyu, the summers are long, 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 35°F to 91°F and is rarely below 26°F or above 94°F. Based on the tourism score, the best time of year to visit Tianyu for warm-weather activities is from mid September to mid October. Average Temperature in TianyuThe hot season lasts for 4.1 months, from May 21 to September 24, with an average daily high temperature above 83°F. The hottest month of the year in Tianyu is July, with an average high of 90°F and low of 77°F. The cool season lasts for 2.8 months, from December 3 to February 25, with an average daily high temperature below 61°F. The coldest month of the year in Tianyu is January, with an average low of 35°F and high of 55°F.
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. Plano, Texas, United States (7,795 miles away) and Eudora, Arkansas, United States (7,938 miles) are the far-away foreign places with temperatures most similar to Tianyu (view comparison). CloudsIn Tianyu, 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 Tianyu begins around September 6 and lasts for 6.4 months, ending around March 19. The clearest month of the year in Tianyu is October, during which on average the sky is clear, mostly clear, or partly cloudy 71% of the time. The cloudier part of the year begins around March 19 and lasts for 5.6 months, ending around September 6. The cloudiest month of the year in Tianyu is July, during which on average the sky is overcast or mostly cloudy 74% of the time.
PrecipitationA wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days in Tianyu varies significantly throughout the year. The wetter season lasts 6.3 months, from February 12 to August 21, with a greater than 33% chance of a given day being a wet day. The month with the most wet days in Tianyu is April, with an average of 14.8 days with at least 0.04 inches of precipitation. The drier season lasts 5.7 months, from August 21 to February 12. The month with the fewest wet days in Tianyu is December, with an average of 5.1 days with at least 0.04 inches of precipitation. Among wet days, we distinguish between those that experience rain alone, snow alone, or a mixture of the two. The month with the most days of rain alone in Tianyu is April, with an average of 14.8 days. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 51% on March 27.
RainfallTo 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. Tianyu experiences extreme seasonal variation in monthly rainfall. Rain falls throughout the year in Tianyu. The month with the most rain in Tianyu is June, with an average rainfall of 8.5 inches. The month with the least rain in Tianyu is December, with an average rainfall of 1.6 inches.
SnowfallAs with rainfall, we consider the snowfall accumulated over a sliding 31-day period centered around each day of the year. Tianyu experiences some seasonal variation in monthly snowfall. The snowy period of the year lasts for 1.3 months, from January 3 to February 12, with a sliding 31-day snowfall of at least 1.0 inches. The month with the most snow in Tianyu is January, with an average snowfall of 1.4 inches. The snowless period of the year lasts for 11 months, from February 12 to January 3. The least snow falls around July 11, with an average total accumulation of 0.0 inches.
SunThe length of the day in Tianyu varies over the course of the year. In 2024, the shortest day is December 21, with 10 hours, 26 minutes of daylight; the longest day is June 21, with 13 hours, 51 minutes of daylight.
The earliest sunrise is at 5:24 AM on June 9, and the latest sunrise is 1 hour, 46 minutes later at 7:10 AM on January 13. The earliest sunset is at 5:25 PM on December 1, and the latest sunset is 1 hour, 53 minutes later at 7:18 PM on July 1. Daylight saving time (DST) is not observed in Tianyu during 2024. 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. MoonThe figure below presents a compact representation of key lunar data for 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. HumidityWe 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. Tianyu experiences extreme seasonal variation in the perceived humidity. The muggier period of the year lasts for 6.1 months, from April 12 to October 14, during which time the comfort level is muggy, oppressive, or miserable at least 25% of the time. The month with the most muggy days in Tianyu is July, with 31.0 days that are muggy or worse. The month with the fewest muggy days in Tianyu is January, with 0.0 days that are muggy or worse.
WindThis 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 Tianyu experiences mild seasonal variation over the course of the year. The windier part of the year lasts for 4.0 months, from January 14 to May 16, with average wind speeds of more than 6.9 miles per hour. The windiest month of the year in Tianyu is March, with an average hourly wind speed of 7.7 miles per hour. The calmer time of year lasts for 8.0 months, from May 16 to January 14. The calmest month of the year in Tianyu is August, with an average hourly wind speed of 6.2 miles per hour.
The predominant average hourly wind direction in Tianyu varies throughout the year. The wind is most often from the south for 3.3 weeks, from April 23 to May 16 and for 2.7 months, from May 24 to August 15, with a peak percentage of 70% on July 9. The wind is most often from the north for 1.1 weeks, from May 16 to May 24 and for 8.3 months, from August 15 to April 23, with a peak percentage of 38% on May 17. Best Time of Year to VisitTo characterize how pleasant the weather is in Tianyu 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 Tianyu for general outdoor tourist activities is from mid September to mid October, with a peak score in the first week of October. Tourism Score in TianyuThe 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 Tianyu for hot-weather activities is from late July to late September, with a peak score in the first week of September. Beach/Pool Score in TianyuMethodologyFor 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 SeasonDefinitions 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 Tianyu typically lasts for 9.4 months (283 days), from around February 23 to around December 2, rarely starting before February 2 or after March 15, and rarely ending before November 14 or after December 21. 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 Tianyu should appear around February 11, only rarely appearing before January 30 or after February 29. Solar EnergyThis 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 4.8 months, from May 2 to September 26, with an average daily incident shortwave energy per square meter above 5.1 kWh. The brightest month of the year in Tianyu is July, with an average of 5.6 kWh. The darker period of the year lasts for 3.2 months, from November 12 to February 17, with an average daily incident shortwave energy per square meter below 3.7 kWh. The darkest month of the year in Tianyu is January, with an average of 3.3 kWh.
TopographyFor the purposes of this report, the geographical coordinates of Tianyu are 27.141 deg latitude, 115.053 deg longitude, and 187 ft elevation. The topography within 2 miles of Tianyu contains very significant variations in elevation, with a maximum elevation change of 1,122 feet and an average elevation above sea level of 281 feet. Within 10 miles contains very significant variations in elevation (2,031 feet). Within 50 miles contains large variations in elevation (4,209 feet). The area within 2 miles of Tianyu is covered by trees (40%), cropland (37%), and water (13%), within 10 miles by trees (41%) and cropland (37%), and within 50 miles by trees (63%) and cropland (20%). Data SourcesThis report illustrates the typical weather in Tianyu, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016. Tianyu 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 Tianyu, 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 Algorithms 2nd Edition , 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 airports and weather stations are provided by AskGeo.com . Maps are © OpenStreetMap contributors. DisclaimerThe 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. Please review our full terms contained on our Terms of Service page. |