Climate and Average Weather Year Round in Bayandelger MongoliaIn Bayandelger, the summers are long, comfortable, and partly cloudy and the winters are frigid, dry, windy, and mostly clear. Over the course of the year, the temperature typically varies from -21°F to 75°F and is rarely below -33°F or above 86°F. Based on the tourism score, the best time of year to visit Bayandelger for warm-weather activities is from late June to early August. Average Temperature in BayandelgerThe warm season lasts for 4.0 months, from May 13 to September 15, with an average daily high temperature above 60°F. The hottest month of the year in Bayandelger is July, with an average high of 74°F and low of 52°F. The cold season lasts for 3.0 months, from November 21 to February 23, with an average daily high temperature below 17°F. The coldest month of the year in Bayandelger is January, with an average low of -20°F and high of 4°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. Watson Lake, Canada (4,342 miles away); Fort Smith, Canada (4,667 miles); and Thompson, Canada (5,137 miles) are the far-away foreign places with temperatures most similar to Bayandelger (view comparison). CloudsIn Bayandelger, the average percentage of the sky covered by clouds experiences mild seasonal variation over the course of the year. The clearer part of the year in Bayandelger begins around August 26 and lasts for 6.7 months, ending around March 17. The clearest month of the year in Bayandelger is January, during which on average the sky is clear, mostly clear, or partly cloudy 66% of the time. The cloudier part of the year begins around March 17 and lasts for 5.3 months, ending around August 26. The cloudiest month of the year in Bayandelger is June, during which on average the sky is overcast or mostly cloudy 48% 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 Bayandelger varies significantly throughout the year. The wetter season lasts 3.1 months, from June 4 to September 7, with a greater than 16% chance of a given day being a wet day. The month with the most wet days in Bayandelger is July, with an average of 9.3 days with at least 0.04 inches of precipitation. The drier season lasts 8.9 months, from September 7 to June 4. The month with the fewest wet days in Bayandelger is January, with an average of 0.2 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. Based on this categorization, the most common form of precipitation in Bayandelger changes throughout the year. Rain alone is the most common for 6.4 months, from April 8 to October 21. The month with the most days of rain alone in Bayandelger is July, with an average of 9.3 days. Snow alone is the most common for 5.6 months, from October 21 to April 8. The month with the most days of snow alone in Bayandelger is October, with an average of 0.5 days.
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. Bayandelger experiences some seasonal variation in monthly rainfall. The rainy period of the year lasts for 4.3 months, from May 12 to September 21, with a sliding 31-day rainfall of at least 0.5 inches. The month with the most rain in Bayandelger is July, with an average rainfall of 2.0 inches. The rainless period of the year lasts for 7.7 months, from September 21 to May 12. The month with the least rain in Bayandelger is January, with an average rainfall of 0.0 inches.
SunThe length of the day in Bayandelger varies extremely over the course of the year. In 2024, the shortest day is December 21, with 8 hours, 25 minutes of daylight; the longest day is June 21, with 16 hours, 0 minutes of daylight.
The earliest sunrise is at 4:48 AM on June 16, and the latest sunrise is 3 hours, 48 minutes later at 8:36 AM on January 2. The earliest sunset is at 4:55 PM on December 11, and the latest sunset is 3 hours, 55 minutes later at 8:50 PM on June 25. Daylight saving time (DST) is not observed in Bayandelger 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. The perceived humidity level in Bayandelger, as measured by the percentage of time in which the humidity comfort level is muggy, oppressive, or miserable, does not vary significantly over the course of the year, remaining a virtually constant 0% throughout.
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 Bayandelger experiences significant seasonal variation over the course of the year. The windier part of the year lasts for 3.4 months, from February 25 to June 7, with average wind speeds of more than 10.2 miles per hour. The windiest month of the year in Bayandelger is April, with an average hourly wind speed of 12.0 miles per hour. The calmer time of year lasts for 8.6 months, from June 7 to February 25. The calmest month of the year in Bayandelger is August, with an average hourly wind speed of 8.2 miles per hour.
The predominant average hourly wind direction in Bayandelger varies throughout the year. The wind is most often from the west for 2.8 months, from September 25 to December 20, with a peak percentage of 49% on November 14. The wind is most often from the north for 9.2 months, from December 20 to September 25, with a peak percentage of 46% on January 1. Best Time of Year to VisitTo characterize how pleasant the weather is in Bayandelger 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 Bayandelger for general outdoor tourist activities is from late June to early August, with a peak score in the third week of July. Tourism Score in BayandelgerThe 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 Bayandelger for hot-weather activities is from early July to early August, with a peak score in the third week of July. Beach/Pool Score in BayandelgerMethodologyFor 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 Bayandelger typically lasts for 3.0 months (91 days), from around June 1 to around August 31, rarely starting before May 15 or after June 20, and rarely ending before August 13 or after September 17. 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 Bayandelger should appear around May 16, only rarely appearing before May 7 or after May 24. 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 extreme seasonal variation over the course of the year. The brighter period of the year lasts for 3.6 months, from April 21 to August 7, with an average daily incident shortwave energy per square meter above 6.0 kWh. The brightest month of the year in Bayandelger is June, with an average of 7.0 kWh. The darker period of the year lasts for 3.2 months, from October 31 to February 7, with an average daily incident shortwave energy per square meter below 2.7 kWh. The darkest month of the year in Bayandelger is December, with an average of 1.6 kWh.
TopographyFor the purposes of this report, the geographical coordinates of Bayandelger are 47.727 deg latitude, 108.111 deg longitude, and 4,757 ft elevation. The topography within 2 miles of Bayandelger contains very significant variations in elevation, with a maximum elevation change of 879 feet and an average elevation above sea level of 4,866 feet. Within 10 miles contains very significant variations in elevation (2,103 feet). Within 50 miles contains large variations in elevation (4,744 feet). The area within 2 miles of Bayandelger is covered by sparse vegetation (96%), within 10 miles by sparse vegetation (82%), and within 50 miles by sparse vegetation (60%) and grassland (22%). Data SourcesThis report illustrates the typical weather in Bayandelger, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016. Temperature and Dew PointThere is only a single weather station, Ulan-Bator Chinggis Khan International Airport, in our network suitable to be used as a proxy for the historical temperature and dew point records of Bayandelger. At a distance of 101 kilometers from Bayandelger, closer than our threshold of 150 kilometers, this station is deemed sufficiently nearby to be relied upon as our primary source for temperature and dew point records. The station records are corrected for the elevation difference between the station and Bayandelger according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations. Please note that the station records themselves may additionally have been back-filled using other nearby stations or the MERRA-2 reanalysis. Other DataAll 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. 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 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. |