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Average Weather in Xiwai China

In Xiwai, the summers are hot, muggy, and wet; the winters are cold and dry; and it is partly cloudy year round. Over the course of the year, the temperature typically varies from 34°F to 91°F and is rarely below 30°F or above 96°F.

Based on the tourism score, the best times of year to visit Xiwai for warm-weather activities are from late April to mid June and from early September to mid October.

Climate Summary

coldcoolwarmhotwarmcoolcoldJanFebMarAprMayJunJulAugSepOctNovDecNowNow67%67%43%43%overcastclearprecipitation: 7.5 inprecipitation: 7.5 in0.2 in0.2 inmuggy: 98%muggy: 98%0%0%drydrytourism score: 6.6tourism score: 6.60.20.2
Click on each chart for more information.

Temperature

The hot season lasts for 3.7 months, from May 24 to September 15, with an average daily high temperature above 83°F. The hottest day of the year is July 27, with an average high of 91°F and low of 75°F.

The cool season lasts for 3.0 months, from November 28 to February 28, with an average daily high temperature below 59°F. The coldest day of the year is January 12, with an average low of 34°F and high of 51°F.

Average High and Low Temperature

Average High and Low Temperature in XiwaihotcoolcoolJanFebMarAprMayJunJulAugSepOctNovDec0°F0°F10°F10°F20°F20°F30°F30°F40°F40°F50°F50°F60°F60°F70°F70°F80°F80°F90°F90°F100°F100°FJan 1251°FJan 1251°FJul 2791°FJul 2791°F34°F34°F75°F75°FMay 2483°FMay 2483°FSep 1583°FSep 1583°FNov 2859°FNov 2859°FFeb 2859°FFeb 2859°F65°F65°F67°F67°F42°F42°F42°F42°FNowNow
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 XiwaiJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMNowNowvery coldvery coldcoldcoldcoolcoolwarmhotvery coldcomfortablecomfortablevery cold
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.

De Witt, Arkansas, United States (7,756 miles away) is the far-away foreign place with temperatures most similar to Xiwai (view comparison).

Clouds

In Xiwai, 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 Xiwai begins around October 10 and lasts for 4.4 months, ending around February 22. On January 1, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 67% of the time, and overcast or mostly cloudy 33% of the time.

The cloudier part of the year begins around February 22 and lasts for 7.6 months, ending around October 10. On July 4, the cloudiest day of the year, the sky is overcast or mostly cloudy 57% of the time, and clear, mostly clear, or partly cloudy 43% of the time.

Cloud Cover Categories

Cloud Cover Categories in XiwaiclearerclearercloudierJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%Jan 167%Jan 167%Jul 443%Jul 443%Oct 1055%Oct 1055%Feb 2255%Feb 2255%NowNowclearmostly clearpartly cloudymostly 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 Xiwai varies significantly throughout the year.

The wetter season lasts 7.1 months, from March 26 to October 30, with a greater than 26% chance of a given day being a wet day. The chance of a wet day peaks at 48% on July 8.

The drier season lasts 4.9 months, from October 30 to March 26. The smallest chance of a wet day is 4% on January 13.

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 48% on July 8.

Daily Chance of Precipitation

Daily Chance of Precipitation in XiwaiwetdrydryJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%Jul 848%Jul 848%Jan 134%Jan 134%Jan 15%Jan 15%Mar 2626%Mar 2626%Oct 3026%Oct 3026%NowNowrain
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. Xiwai experiences extreme seasonal variation in monthly rainfall.

The rainy period of the year lasts for 9.5 months, from February 21 to December 6, with a sliding 31-day rainfall of at least 0.5 inches. The most rain falls during the 31 days centered around July 5, with an average total accumulation of 7.5 inches.

The rainless period of the year lasts for 2.5 months, from December 6 to February 21. The least rain falls around January 16, with an average total accumulation of 0.2 inches.

Average Monthly Rainfall

Average Monthly Rainfall in XiwairainJanFebMarAprMayJunJulAugSepOctNovDec0 in0 in2 in2 in4 in4 in6 in6 in8 in8 in10 in10 in12 in12 inJul 57.5 inJul 57.5 inJan 160.2 inJan 160.2 inAug 286.0 inAug 286.0 inFeb 210.5 inFeb 210.5 inDec 60.5 inDec 60.5 inNowNow
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.

Sun

The length of the day in Xiwai varies significantly over the course of the year. In 2021, the shortest day is December 21, 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 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 5:45 AM on June 11, and the latest sunrise is 2 hours, 4 minutes later at 7:49 AM on January 10. The earliest sunset is at 5:47 PM on December 4, and the latest sunset is 2 hours, 11 minutes later at 7:58 PM on June 30.

Daylight saving time (DST) is not observed in Xiwai during 2021.

Sunrise & Sunset with Twilight

Sunrise & Sunset with Twilight in XiwaiJanFebMarAprMayJunJulAugSepOctNovDec2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMJun 115:45 AMJun 115:45 AM7:58 PMJun 307:58 PMJun 30Dec 45:47 PMDec 45:47 PM7:49 AMJan 107:49 AMJan 10daynightnightnightSolarMidnightSolarMidnightSolarNoonSunriseSunsetNowNow
The solar day over the course of the year 2021. 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.

Moon

The figure below presents a compact representation of key lunar data for 2021. 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.

Moon Rise, Set & Phases

The time in which the moon is above the horizon (light blue area), with new moons (dark gray lines) and full moons (blue lines) indicated. The shaded overlays indicate night and civil twilight.

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.

Xiwai experiences extreme seasonal variation in the perceived humidity.

The muggier period of the year lasts for 4.0 months, from May 23 to September 24, 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 23, with muggy conditions 98% of the time.

The least muggy day of the year is February 1, when muggy conditions are essentially unheard of.

Humidity Comfort Levels

Humidity Comfort Levels in XiwaimuggyJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%Feb 10%Feb 10%98%Jul 2398%Jul 23May 2325%May 2325%Sep 2425%Sep 2425%NowNowoppressiveoppressivedrydrymuggymuggyhumidhumidcomfortablecomfortable
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 Xiwai experiences mild seasonal variation over the course of the year.

The windier part of the year lasts for 3.2 months, from February 19 to May 25, with average wind speeds of more than 5.5 miles per hour. The windiest day of the year is May 1, with an average hourly wind speed of 6.1 miles per hour.

The calmer time of year lasts for 8.8 months, from May 25 to February 19. The calmest day of the year is January 1, with an average hourly wind speed of 4.9 miles per hour.

Average Wind Speed

Average Wind Speed in XiwaiwindyJanFebMarAprMayJunJulAugSepOctNovDec0 mph0 mph1 mph1 mph2 mph2 mph3 mph3 mph4 mph4 mph5 mph5 mph6 mph6 mph7 mph7 mph8 mph8 mph9 mph9 mph10 mph10 mphMay 16.1 mphMay 16.1 mphJan 14.9 mphJan 14.9 mphNowNow
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 Xiwai is from the east throughout the year.

Wind Direction

Wind Direction in XiwaiJanFebMarAprMayJunJulAugSepOctNovDec0%100%20%80%40%60%60%40%80%20%100%0%NowNowsoutheastnorthwest
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 Xiwai 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 times of year to visit Xiwai for general outdoor tourist activities are from late April to mid June and from early September to mid October, with a peak score in the last week of September.

Tourism Score

Tourism Score in Xiwaibest timebest timeJanFebMarAprMayJunJulAugSepOctNovDec002244668810106.66.60.20.26.36.34.54.5NowNowprecipitationprecipitationcloudscloudstemperaturetemperature tourism 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 Xiwai for hot-weather activities is from early June to early September, with a peak score in the third week of August.

Beach/Pool Score

Beach/Pool Score in Xiwaibest timeJanFebMarAprMayJunJulAugSepOctNovDec002244668810105.95.90.00.0NowNowprecipitationprecipitationcloudscloudstemperaturetemperature beach/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 Xiwai typically lasts for 9.9 months (299 days), from around February 15 to around December 11, rarely starting before January 22 or after March 8, and rarely ending before November 21 or after December 31.

Time Spent in Various Temperature Bands and the Growing Season

Time Spent in Various Temperature Bands and the Growing Season in Xiwaigrowing seasonJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%50%Feb 1550%Feb 1550%Dec 1150%Dec 1190%Mar 890%Mar 890%Nov 2190%Nov 2110%Jan 2210%Jan 2210%Dec 3110%Dec 31Jul 15100%Jul 15100%NowNowvery 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 Xiwai should appear around March 3, only rarely appearing before February 19 or after March 15.

Growing Degree Days

Growing Degree Days in XiwaiJanFebMarAprMayJunJulAugSepOctNovDec0°F0°F1,000°F1,000°F2,000°F2,000°F3,000°F3,000°F4,000°F4,000°F5,000°F5,000°FMar 384°FMar 384°FMay 10900°FMay 10900°FJun 161,800°FJun 161,800°FDec 315,483°FDec 315,483°FNowNow
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 significant seasonal variation over the course of the year.

The brighter period of the year lasts for 4.0 months, from April 25 to August 24, with an average daily incident shortwave energy per square meter above 5.4 kWh. The brightest day of the year is July 21, with an average of 6.1 kWh.

The darker period of the year lasts for 3.5 months, from October 30 to February 13, with an average daily incident shortwave energy per square meter below 3.2 kWh. The darkest day of the year is December 24, with an average of 2.5 kWh.

Average Daily Incident Shortwave Solar Energy

Average Daily Incident Shortwave Solar Energy in XiwaibrightdarkdarkJanFebMarAprMayJunJulAugSepOctNovDec0 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWh8 kWh8 kWhJul 216.1 kWhJul 216.1 kWhDec 242.5 kWhDec 242.5 kWhApr 255.4 kWhApr 255.4 kWhOct 303.2 kWhOct 303.2 kWhFeb 133.2 kWhFeb 133.2 kWhNowNow
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 Xiwai are 31.217 deg latitude, 107.475 deg longitude, and 1,030 ft elevation.

The topography within 2 miles of Xiwai contains very significant variations in elevation, with a maximum elevation change of 1,621 feet and an average elevation above sea level of 1,168 feet. Within 10 miles contains very significant variations in elevation (2,641 feet). Within 50 miles contains large variations in elevation (4,895 feet).

The area within 2 miles of Xiwai is covered by artificial surfaces (42%), cropland (35%), and shrubs (10%), within 10 miles by cropland (36%) and trees (28%), and within 50 miles by cropland (38%) and trees (32%).

Data Sources

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

Xiwai 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 Xiwai, 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 © 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.