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Average Weather at Xi'an Xianyang International Airport China

At Xi'an Xianyang International Airport, the summers are hot, muggy, and partly cloudy and the winters are very cold, dry, and mostly clear. Over the course of the year, the temperature typically varies from 24°F to 89°F and is rarely below 16°F or above 98°F.

Based on the tourism score, the best times of year to visit Xi'an Xianyang International Airport for warm-weather activities are from mid May to late June and from early August to late September.

Climate Summary

very coldcoldcoolwarmhotwarmcoolcoldJanFebMarAprMayJunJulAugSepOctNovDec72%72%49%49%clearovercastprecipitation: 3.7 inprecipitation: 3.7 in0.1 in0.1 inmuggy: 87%muggy: 87%0%0%drydrytourism score: 6.7tourism score: 6.70.00.0
Click on each chart for more information.

Temperature

The hot season lasts for 3.7 months, from May 18 to September 8, with an average daily high temperature above 79°F. The hottest day of the year is July 21, with an average high of 89°F and low of 73°F.

The cold season lasts for 3.0 months, from November 24 to February 23, with an average daily high temperature below 50°F. The coldest day of the year is January 10, with an average low of 24°F and high of 40°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 at Xi'an Xianyang International AirportJanFebMarAprMayJunJulAugSepOctNovDec12 AM4 AM8 AM12 PM4 PM8 PM12 AMfreezingvery coldcoldcoldcoolcoolcomfortablewarmwarmhotvery coldfreezingfreezing
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.

Kansas City, Missouri, United States (7,149 miles away) is the far-away foreign place with temperatures most similar to Xi'an Xianyang International Airport (view comparison).

Clouds

At Xi'an Xianyang International Airport, 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 at Xi'an Xianyang International Airport begins around October 16 and lasts for 3.7 months, ending around February 7. On December 16, 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 February 7 and lasts for 8.3 months, ending around October 16. On March 27, the cloudiest day of the year, the sky is overcast or mostly cloudy 51% of the time, and clear, mostly clear, or partly cloudy 49% of the time.

Cloud Cover Categories

Cloud Cover Categories at Xi'an Xianyang International AirportclearerclearercloudierJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%Dec 1672%Dec 1672%Mar 2749%Mar 2749%Oct 1660%Oct 1660%Feb 761%Feb 761%clearmostly clearmostly cloudyovercastpartly cloudy
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 at Xi'an Xianyang International Airport varies significantly throughout the year.

The wetter season lasts 6.3 months, from April 18 to October 27, with a greater than 17% chance of a given day being a wet day. The chance of a wet day peaks at 34% on July 7.

The drier season lasts 5.7 months, from October 27 to April 18. The smallest chance of a wet day is 1% on December 27.

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 at Xi'an Xianyang International Airport changes throughout the year.

Rain alone is the most common for 11 months, from January 31 to December 28. The highest chance of a day with rain alone is 34% on July 7.

Snow alone is the most common for 1.1 months, from December 28 to January 31. The highest chance of a day with snow alone is 1% on January 15.

Daily Chance of Precipitation

Daily Chance of Precipitation at Xi'an Xianyang International AirportsnowrainJanFebMarAprMayJunJulAugSepOctNovDec0%10%20%30%40%50%60%70%80%90%100%Jul 734%Jul 734%Dec 271%Dec 271%Jan 312%Jan 312%Apr 1817%Apr 1817%Oct 2717%Oct 2717%rain
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. Xi'an Xianyang International Airport experiences significant seasonal variation in monthly rainfall.

The rainy period of the year lasts for 8.3 months, from March 8 to November 18, with a sliding 31-day rainfall of at least 0.5 inches. The most rain falls during the 31 days centered around July 12, with an average total accumulation of 3.7 inches.

The rainless period of the year lasts for 3.7 months, from November 18 to March 8. The least rain falls around January 12, with an average total accumulation of 0.0 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.

Sun

The length of the day at Xi'an Xianyang International Airport varies significantly over the course of the year. In 2018, the shortest day is December 22, with 9 hours, 51 minutes of daylight; the longest day is June 21, with 14 hours, 28 minutes of daylight.

Hours of Daylight and Twilight

Hours of Daylight and Twilight at Xi'an Xianyang International AirportJanFebMarAprMayJunJulAugSepOctNovDec0 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hr12 hr, 7 minMar 2112 hr, 7 minMar 2114 hr, 28 minJun 2114 hr, 28 minJun 2112 hr, 10 minSep 2312 hr, 10 minSep 239 hr, 51 minDec 229 hr, 51 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 5:31 AM on June 13, and the latest sunrise is 2 hours, 20 minutes later at 7:52 AM on January 7. The earliest sunset is at 5:34 PM on December 5, and the latest sunset is 2 hours, 27 minutes later at 8:01 PM on June 29.

Daylight saving time (DST) is not observed at Xi'an Xianyang International Airport during 2018.

Sunrise & Sunset with Twilight

Sunrise & Sunset with Twilight at Xi'an Xianyang International AirportJanFebMarAprMayJunJulAugSepOctNovDec2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMJun 135:31 AMJun 135:31 AM8:01 PMJun 298:01 PMJun 29Dec 55:34 PMDec 55:34 PM7:52 AMJan 77:52 AMJan 7daynightnightnightnightSolarMidnightSolarMidnightSolarNoonSunriseSunset
The solar day over the course of the year 2018. 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.

Xi'an Xianyang International Airport experiences extreme seasonal variation in the perceived humidity.

The muggier period of the year lasts for 3.0 months, from June 14 to September 14, during which time the comfort level is muggy, oppressive, or miserable at least 22% of the time. The muggiest day of the year is July 30, with muggy conditions 87% of the time.

The least muggy day of the year is February 8, when muggy conditions are essentially unheard of.

Humidity Comfort Levels

Humidity Comfort Levels at Xi'an Xianyang International AirportmuggyJanFebMarAprMayJunJulAugSepOctNovDec0%10%20%30%40%50%60%70%80%90%100%Feb 80%Feb 80%87%Jul 3087%Jul 30Jun 1422%Jun 1422%Sep 1422%Sep 1422%muggymuggydrydryhumidhumidoppressiveoppressivemiserablemiserablecomfortablecomfortable
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 at Xi'an Xianyang International Airport experiences mild seasonal variation over the course of the year.

The windier part of the year lasts for 3.6 months, from February 15 to June 2, with average wind speeds of more than 5.4 miles per hour. The windiest day of the year is April 30, with an average hourly wind speed of 6.2 miles per hour.

The calmer time of year lasts for 8.5 months, from June 2 to February 15. The calmest day of the year is October 14, with an average hourly wind speed of 4.6 miles per hour.

Average Wind Speed

Average Wind Speed at Xi'an Xianyang International AirportwindyJanFebMarAprMayJunJulAugSepOctNovDec0 mph1 mph2 mph3 mph4 mph5 mph6 mph7 mph8 mph9 mph10 mphApr 306.2 mphApr 306.2 mphOct 144.6 mphOct 144.6 mphFeb 155.4 mphFeb 155.4 mph
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 at Xi'an Xianyang International Airport varies throughout the year.

The wind is most often from the west for 1.3 months, from November 13 to December 22, with a peak percentage of 33% on December 14. The wind is most often from the east for 11 months, from December 22 to November 13, with a peak percentage of 33% on January 1.

Wind Direction

Wind Direction at Xi'an Xianyang International AirportEWEJanFebMarAprMayJunJulAugSepOctNovDec0%100%20%80%40%60%60%40%80%20%100%0%westsoutheastnorth
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 at Xi'an Xianyang International Airport 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 Xi'an Xianyang International Airport for general outdoor tourist activities are from mid May to late June and from early August to late September, with a peak score in the second week of September.

Tourism Score

Tourism Score at Xi'an Xianyang International Airportbest timebest timeJanFebMarAprMayJunJulAugSepOctNovDec02468106.76.70.00.06.66.65.55.5precipitationprecipitationcloudscloudstemperaturetemperaturetourism 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 Xi'an Xianyang International Airport for hot-weather activities is from mid June to late August, with a peak score in the last week of July.

Beach/Pool Score

Beach/Pool Score at Xi'an Xianyang International Airportbest timeJanFebMarAprMayJunJulAugSepOctNovDec02468106.46.40.00.0 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 at Xi'an Xianyang International Airport typically lasts for 8.0 months (246 days), from around March 12 to around November 13, rarely starting before February 19 or after April 1, and rarely ending before October 26 or after November 30.

Time Spent in Various Temperature Bands and the Growing Season

Time Spent in Various Temperature Bands and the Growing Season at Xi'an Xianyang International Airportgrowing seasonJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%50%Mar 1250%Mar 1250%Nov 1350%Nov 1390%Apr 190%Apr 190%Oct 2690%Oct 2610%Feb 1910%Feb 1910%Nov 3010%Nov 30Jul 14100%Jul 14100%freezingvery coldcomfortablewarmhotcoolcold
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 at Xi'an Xianyang International Airport should appear around March 26, only rarely appearing before March 16 or after April 6.

Growing Degree Days

Growing Degree Days at Xi'an Xianyang International AirportJanFebMarAprMayJunJulAugSepOctNovDec0°F500°F1,000°F1,500°F2,000°F2,500°F3,000°F3,500°F4,000°F4,500°FMar 2688°FMar 2688°FMay 27900°FMay 27900°FJul 21,800°FJul 21,800°FDec 314,360°FDec 314,360°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 significant seasonal variation over the course of the year.

The brighter period of the year lasts for 4.1 months, from April 15 to August 20, with an average daily incident shortwave energy per square meter above 5.7 kWh. The brightest day of the year is June 12, with an average of 6.4 kWh.

The darker period of the year lasts for 3.3 months, from October 31 to February 8, with an average daily incident shortwave energy per square meter below 3.5 kWh. The darkest day of the year is December 24, with an average of 2.7 kWh.

Average Daily Incident Shortwave Solar Energy

Average Daily Incident Shortwave Solar Energy at Xi'an Xianyang International AirportbrightdarkdarkJanFebMarAprMayJunJulAugSepOctNovDec0 kWh1 kWh2 kWh3 kWh4 kWh5 kWh6 kWh7 kWh8 kWh9 kWhJun 126.4 kWhJun 126.4 kWhDec 242.7 kWhDec 242.7 kWhApr 155.7 kWhApr 155.7 kWhAug 205.7 kWhAug 205.7 kWhOct 313.5 kWhOct 313.5 kWhFeb 83.5 kWhFeb 83.5 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 Xi'an Xianyang International Airport are 34.447 deg latitude, 108.752 deg longitude, and 1,562 ft elevation.

The topography within 2 miles of Xi'an Xianyang International Airport contains only modest variations in elevation, with a maximum elevation change of 174 feet and an average elevation above sea level of 1,575 feet. Within 10 miles contains only modest variations in elevation (561 feet). Within 50 miles contains significant variations in elevation (8,757 feet).

The area within 2 miles of Xi'an Xianyang International Airport is covered by cropland (73%) and artificial surfaces (18%), within 10 miles by cropland (71%) and artificial surfaces (16%), and within 50 miles by cropland (52%) and grassland (19%).

Data Sources

This report illustrates the typical weather at Xi'an Xianyang International Airport, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.

Temperature and Dew Point

Xi'an Xianyang International Airport has a weather station that reported reliably enough during the analysis period that we have included it in our network. When available, historical temperature and dew point measurements are taken directly from this weather station. These records are obtained from NOAA's Integrated Surface Hourly data set, falling back on ICAO METAR records as required.

There are no other weather stations in our network within 200 kilometers of this location. Consequently, in the case of missing or erroneous measurements from this station, we fall back on NASA's MERRA-2 modern-era reanalysis , adjusted according to typical seasonal and diurnal differences between this station and the wide-area MERRA-2 reconstructed values.

Other Data

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.

All other weather data, including cloud cover, precipitation, wind speed and direction, and solar flux, come from NASA's MERRA-2 Modern-Era Retrospective Analysis . 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.

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.