May Weather in Sansheng ChinaDaily high temperatures increase by 6°F, from 77°F to 82°F, rarely falling below 67°F or exceeding 90°F. Daily low temperatures increase by 7°F, from 58°F to 65°F, rarely falling below 51°F or exceeding 71°F. For reference, on July 29, the hottest day of the year, temperatures in Sansheng typically range from 74°F to 89°F, while on January 19, the coldest day of the year, they range from 31°F to 48°F. The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on May. 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. Nashville, United States (7,739 miles away) is the far-away foreign place with temperatures most similar to Sansheng (view comparison). CloudsThe month of May in Sansheng experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 49% throughout the month. The lowest chance of overcast or mostly cloudy conditions is 48% on May 20. The clearest day of the month is May 20, with clear, mostly clear, or partly cloudy conditions 52% of the time. For reference, on July 5, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 69%, while on December 16, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 73%. PrecipitationA wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Sansheng, the chance of a wet day over the course of May is gradually decreasing, starting the month at 37% and ending it at 35%. For reference, the year's highest daily chance of a wet day is 44% on July 8, and its lowest chance is 9% on December 16. RainfallTo 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 May in Sansheng is increasing, starting the month at 5.1 inches, when it rarely exceeds 7.5 inches or falls below 2.7 inches, and ending the month at 5.9 inches, when it rarely exceeds 8.9 inches or falls below 3.0 inches. SunOver the course of May in Sansheng, the length of the day is increasing. From the start to the end of the month, the length of the day increases by 36 minutes, implying an average daily increase of 1 minute, 12 seconds, and weekly increase of 8 minutes, 22 seconds. The shortest day of the month is May 1, with 13 hours, 20 minutes of daylight and the longest day is May 31, with 13 hours, 56 minutes of daylight. The latest sunrise of the month in Sansheng is 5:52 AM on May 1 and the earliest sunrise is 17 minutes earlier at 5:35 AM on May 31. The earliest sunset is 7:12 PM on May 1 and the latest sunset is 18 minutes later at 7:30 PM on May 31. Daylight saving time is not observed in Sansheng during 2024. For reference, on June 20, the longest day of the year, the Sun rises at 5:34 AM and sets 14 hours, 4 minutes later, at 7:38 PM, while on December 21, the shortest day of the year, it rises at 7:26 AM and sets 10 hours, 14 minutes later, at 5:40 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. MoonThe figure below presents a compact representation of key lunar data for May 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.
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. The chance that a given day will be muggy in Sansheng is very rapidly increasing during May, rising from 16% to 43% over the course of the month. For reference, on July 22, the muggiest day of the year, there are muggy conditions 98% of the time, while on January 1, the least muggy day of the year, there are muggy conditions 0% of the time. 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 Sansheng is gradually decreasing during May, decreasing from 6.7 miles per hour to 5.8 miles per hour over the course of the month. For reference, on March 8, the windiest day of the year, the daily average wind speed is 7.0 miles per hour, while on June 10, the calmest day of the year, the daily average wind speed is 5.7 miles per hour. The hourly average wind direction in Sansheng throughout May is predominantly from the north, with a peak proportion of 32% on May 26. 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 Sansheng typically lasts for 8.8 months (269 days), from around March 5 to around November 29, rarely starting before February 14 or after March 24, and rarely ending before November 11 or after December 17. The month of May in Sansheng 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 Sansheng are rapidly increasing during May, increasing by 602°F, from 576°F to 1,178°F, over the course of the month. 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 in Sansheng is essentially constant during May, remaining within 0.2 kWh of 5.5 kWh throughout. TopographyFor the purposes of this report, the geographical coordinates of Sansheng are 29.807 deg latitude, 111.248 deg longitude, and 646 ft elevation. The topography within 2 miles of Sansheng contains very significant variations in elevation, with a maximum elevation change of 1,772 feet and an average elevation above sea level of 964 feet. Within 10 miles contains very significant variations in elevation (3,215 feet). Within 50 miles contains large variations in elevation (7,352 feet). The area within 2 miles of Sansheng is covered by trees (66%) and cropland (24%), within 10 miles by trees (64%) and cropland (20%), and within 50 miles by trees (56%) and cropland (25%). Data SourcesThis report illustrates the typical weather in Sansheng, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016. Sansheng 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 Sansheng, 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. 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