Average Weather on May 25 in Jiuzhai China
On May 25, the temperature in Jiuzhai typically ranges from 55°F to 72°F and is rarely below 51°F or above 78°F.
For reference, on July 28, the hottest day of the year, temperatures in Jiuzhai typically range from 71°F to 83°F, while on January 18, the coldest day of the year, they range from 12°F to 25°F.
The coolest time of the day is from 11:00 PM to 6:30 AM, with the coldest at 4:15 AM, at which time the temperature is below 57°F three days out of four, and below 59°F nine days out of ten.
The warmest time of the day is from 10:00 AM to 5:30 PM, with the hottest at 1:45 PM, at which time the temperature is above 69°F three days out of four, and above 65°F nine days out of ten.
The day has gained half its heat by 8:15 AM and lost it again by 7:15 PM.
Average Temperature on May 25
The figure below shows you a compact characterization of the range of temperatures experienced on May 25 throughout the historical record. The horizontal axis is the time of day and the colored stacked areas indicate the percentage of hours spent in various temperature bands.
Temperature Bands on May 25
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
Compared to May 25 (excluding 30 days before and after), September 26 has the most similar daily average high and low temperatures.
In Jiuzhai on May 25, the average percentage of the sky covered by clouds does not show significant systematic variation over the course of the day, with the percentage of time that the sky is overcast or mostly cloudy remaining about 41% throughout the day.
For reference, on July 21, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 45%, while on January 22, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 76%.
Cloud Cover Categories on May 25
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
On average, there is a 19% chance that more than 0.04 inches of total precipitation will fall in Jiuzhai throughout the day on May 25, all of which can be expected to be rain.
For reference, the year's highest daily chance of precipitation is 38% on July 22, and its lowest chance is 1% on January 27.
For those 19% of years with precipitation on May 25, the chart below shows when throughout the day that precipitation is more or less likely to occur, excluding hourly accumulations of less than 0.01 inches. If precipitation were equally likely throughout the day, all hours would report 4.2% (100% divided by 24 hours).
Precipitation is most likely between 12 PM and 1 PM, and least likely between 8 PM and 9 PM.
Hourly Share of Precipitation on May 25
In Jiuzhai on Monday, May 25, 2020, the Sun rises at 4:28 AM and sets 14 hours, 41 minutes later, at 7:09 PM. Solar noon is at 11:48 AM.
For reference, on June 20, the longest day of the year, the Sun rises at 4:22 AM and sets 15 hours, 2 minutes later, at 7:23 PM, while on December 21, the shortest day of the year, it rises at 7:10 AM and sets 9 hours, 19 minutes later, at 4:29 PM.
Civil twilight, the period before the Sun has risen or after the Sun has set during which time it is possible to engage in most outdoor activities without artificial lighting, begins and ends 32 minutes before sunrise and after sunset, at 3:56 AM and 7:40 PM respectively.
Nautical twilight, during which time it is possible to clearly discern the horizon (e.g., for navigational purposes), begins and ends 1 hour, 11 minutes before sunrise and after sunset, at 3:17 AM and 8:20 PM respectively.
Astronomical twilight, outside of which it is possible to make the most sensitive of astronomical observations, begins and ends 1 hour, 56 minutes before sunrise and after sunset, at 2:32 AM and 9:05 PM respectively.
Solar Elevation on May 25, 2020
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.
Muggy conditions are essentially unheard-of in Jiuzhai on May 25.
Humidity Comfort Levels on May 25
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
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 Jiuzhai on May 25 varies throughout the day, with a daily average of 10.1 miles per hour.
The windiest time of day is around 2:15 PM, with an average hourly wind speed of 12.0 miles per hour, mostly staying between 8.5 miles per hour and 15.4 miles per hour, and rarely falling below 5.5 miles per hour or exceeding 18.6 miles per hour.
The calmest time of day is around 7:30 PM, with an average hourly wind speed of 8.7 miles per hour, mostly staying between 5.8 miles per hour and 11.1 miles per hour, and rarely falling below 3.7 miles per hour or exceeding 14.4 miles per hour.
For reference, on November 19, the windiest day of the year, the daily average wind speed is 12.4 miles per hour, while on August 9, the calmest day of the year, the daily average wind speed is 7.9 miles per hour.
Wind Speed on May 25
Over the entire course of May 25 in Jiuzhai, the hourly average wind direction, in order of prevalence, is from the south (46%), west (25%), north (20%), and east (8%).
Wind Direction on May 25
Jiuzhai is located near a large body of water (e.g., ocean, sea, or large lake). This section reports on the wide-area average surface temperature of that water. The average surface water temperature does not change appreciably over the course of the day, so this section does not include a chart.
The average surface water temperature on May 25 in Jiuzhai is 56°F, mostly staying between 55°F and 57°F, and rarely falling below 53°F or exceeding 58°F.
For reference, the year's highest average is 77°F on August 14, and its lowest average is 32°F on February 14.
Shortwave Solar Power
This section discusses the incident shortwave solar power 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 peak incident shortwave solar power per square meter is 0.79 kilowatts at around 11:45 AM.
In contrast, the corresponding value on May 30, the brightest day of the year, is 0.79 kilowatts at around 10:45 AM. The corresponding value on December 18, the darkest day of the year, is 0.39 kilowatts at around 10:45 AM.
Shortwave Solar Power on May 25
For the purposes of this report, the geographical coordinates of Jiuzhai are 40.091 deg latitude, 122.104 deg longitude, and 177 ft elevation.
The topography within 2 miles of Jiuzhai contains only modest variations in elevation, with a maximum elevation change of 328 feet and an average elevation above sea level of 179 feet. Within 10 miles contains only modest variations in elevation (2,759 feet). Within 50 miles contains large variations in elevation (3,658 feet).
The area within 2 miles of Jiuzhai is covered by cropland (70%) and artificial surfaces (25%), within 10 miles by trees (43%) and cropland (35%), and within 50 miles by water (39%) and trees (28%).
This report illustrates the typical weather in Jiuzhai, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.
Jiuzhai 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 Jiuzhai, 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 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.