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Fall Weather in Tsagaan-Olom Mongolia

Daily high temperatures decrease by 47°F, from 69°F to 23°F, rarely falling below 12°F or exceeding 78°F.

Daily low temperatures decrease by 40°F, from 43°F to 3°F, rarely falling below -7°F or exceeding 51°F.

For reference, on July 15, the hottest day of the year, temperatures in Tsagaan-Olom typically range from 53°F to 78°F, while on January 19, the coldest day of the year, they range from -6°F to 15°F.

Average High and Low Temperature in the Fall in Tsagaan-Olom

Average High and Low Temperature in the Fall in Tsagaan-OlomSepOctNov-20°F-20°F-10°F-10°F0°F0°F10°F10°F20°F20°F30°F30°F40°F40°F50°F50°F60°F60°F70°F70°F80°F80°F90°F90°FSummerWinterSep 169°FSep 169°F43°F43°FNov 3023°FNov 3023°F3°F3°FOct 156°FOct 156°F31°F31°FNov 138°FNov 138°F17°F17°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 hourly average fall temperatures. 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.

Average Hourly Temperature in the Fall in Tsagaan-Olom

Average Hourly Temperature in the Fall in Tsagaan-OlomSepOctNov12 AM12 AM2 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AMSummerWinterNowNowfrigidfrigidfreezingvery coldcoldcoolcoolcomfortablewarm
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.

Meadow Lake, Saskatchewan, Canada (5,323 miles away) is the far-away foreign place with temperatures most similar to Tsagaan-Olom (view comparison).

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The fall in Tsagaan-Olom experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 29% throughout the season. The lowest chance of overcast or mostly cloudy conditions is 28% on September 20.

The clearest day of the fall is September 20, with clear, mostly clear, or partly cloudy conditions 72% of the time.

For reference, on May 7, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 39%, while on January 17, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 73%.

Cloud Cover Categories in the Fall in Tsagaan-Olom

Cloud Cover Categories in the Fall in Tsagaan-OlomSepOctNov0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%SummerWinterMay 761%May 761%Sep 170%Sep 170%Nov 3069%Nov 3069%Oct 172%Oct 172%Nov 169%Nov 169%NowNowclearmostly clearpartly 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.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Tsagaan-Olom, the chance of a wet day over the course of the fall is very rapidly decreasing, starting the season at 13% and ending it at 0%.

For reference, the year's highest daily chance of a wet day is 21% on July 3, and its lowest chance is 0% on February 22.

Probability of Precipitation in the Fall in Tsagaan-Olom

Probability of Precipitation in the Fall in Tsagaan-OlomSepOctNov0%0%2%2%4%4%6%6%8%8%10%10%12%12%14%14%16%16%18%18%20%20%SummerWinterSep 113%Sep 113%Nov 300%Nov 300%Oct 14%Oct 14%Nov 11%Nov 11%NowNowrainsnowmixed
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 season and not just the monthly totals, we show the rainfall accumulated over a sliding 31-day period centered around each day.

The average sliding 31-day rainfall during the fall in Tsagaan-Olom is decreasing, starting the season at 0.6 inches, when it rarely exceeds 1.2 inches or falls below 0.1 inches, and ending the season at 0.0 inches, when it rarely exceeds 0.0 inches or falls below -0.0 inches.

Average Monthly Rainfall in the Fall in Tsagaan-Olom

Average Monthly Rainfall in the Fall in Tsagaan-OlomSepOctNov0.0 in0.0 in0.5 in0.5 in1.0 in1.0 in1.5 in1.5 in2.0 in2.0 inSummerWinterSep 10.6 inSep 10.6 inNov 300.0 inNov 300.0 inOct 10.2 inOct 10.2 inNov 10.0 inNov 10.0 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 snowfall.

Over the course of the fall in Tsagaan-Olom, the length of the day is very rapidly decreasing. From the start to the end of the season, the length of the day decreases by 4 hours, 28 minutes, implying an average daily decrease of 2 minutes, 58 seconds, and weekly decrease of 20 minutes, 49 seconds.

The shortest day of the fall is November 30, with 8 hours, 51 minutes of daylight and the longest day is September 1, with 13 hours, 19 minutes of daylight.

Hours of Daylight and Twilight in the Fall in Tsagaan-Olom

Hours of Daylight and Twilight in the Fall in Tsagaan-OlomSepOctNov0 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hrSummerWinterSep 2212 hr, 11 minSep 2212 hr, 11 minnightnightdaydayNov 308 hr, 51 minNov 308 hr, 51 minNov 110 hr, 2 minNov 110 hr, 2 minNowNow
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 of the fall in Tsagaan-Olom is 5:53 AM on September 1 and the latest sunrise is 2 hours, 3 minutes later at 7:56 AM on November 30.

The latest sunset is 7:12 PM on September 1 and the earliest sunset is 2 hours, 25 minutes earlier at 4:48 PM on November 30.

Daylight saving time is not observed in Tsagaan-Olom during 2024.

For reference, on June 20, the longest day of the year, the Sun rises at 4:39 AM and sets 15 hours, 51 minutes later, at 8:31 PM, while on December 21, the shortest day of the year, it rises at 8:15 AM and sets 8 hours, 33 minutes later, at 4:48 PM.

Sunrise & Sunset with Twilight in the Fall in Tsagaan-Olom

Sunrise & Sunset with Twilight in the Fall in Tsagaan-OlomSepOctNov2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMSummerWinter5:53 AM5:53 AMSep 17:12 PMSep 17:12 PM7:56 AM7:56 AMNov 304:48 PMNov 304:48 PM6:32 AM6:32 AMOct 16:13 PMOct 16:13 PM7:16 AM7:16 AMNov 15:18 PMNov 15:18 PMSolarMidnightSolarMidnightSolarNoonSunriseSunsetNowNow
The solar day in the fall. 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.

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.

Solar Elevation and Azimuth in the Fall in Tsagaan-Olom

Solar Elevation and Azimuth in the Fall in Tsagaan-OlomSepOctNov12 AM12 AM2 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AMSummerWinter00102030001010203040NowNow
northeastsouthwest
Solar elevation and azimuth in the the fall of 2024. The black lines are lines of constant solar elevation (the angle of the sun above the horizon, in degrees). The background color fills indicate the azimuth (the compass bearing) of the sun. The lightly tinted areas at the boundaries of the cardinal compass points indicate the implied intermediate directions (northeast, southeast, southwest, and northwest).

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

Moon Rise, Set & Phases in the Fall in Tsagaan-Olom

Moon Rise, Set & Phases in the Fall in Tsagaan-OlomSepOctNov12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMSummerWinterAug 46:14 PMAug 46:14 PMAug 201:26 AMAug 201:26 AMSep 38:56 AMSep 38:56 AMSep 189:35 AMSep 189:35 AMOct 31:50 AMOct 31:50 AMOct 176:27 PMOct 176:27 PMNov 17:48 PMNov 17:48 PMNov 164:29 AMNov 164:29 AMDec 11:22 PMDec 11:22 PMDec 154:02 PMDec 154:02 PMDec 315:28 AMDec 315:28 AM8:23 PM8:23 PM7:45 PM7:45 PM5:48 AM5:48 AM5:47 AM5:47 AM7:24 PM7:24 PM6:28 PM6:28 PM6:06 AM6:06 AM6:53 AM6:53 AM6:13 PM6:13 PM5:28 PM5:28 PM7:50 AM7:50 AM6:56 AM6:56 AM4:53 PM4:53 PM4:15 PM4:15 PM8:11 AM8:11 AM8:13 AM8:13 AM4:17 PM4:17 PM9:03 AM9:03 AM4:51 PM4:51 PMNowNow
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.

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.

The chance that a given day will be muggy in Tsagaan-Olom is essentially constant during the fall, remaining around 0% throughout.

Humidity Comfort Levels in the Fall in Tsagaan-Olom

Humidity Comfort Levels in the Fall in Tsagaan-OlomSepOctNov0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%SummerWinterOct 160%Oct 160%Sep 10%Sep 10%Nov 300%Nov 300%Oct 10%Oct 10%Nov 10%Nov 10%NowNowdrydry
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.

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 Tsagaan-Olom is gradually decreasing during the fall, decreasing from 8.3 miles per hour to 7.6 miles per hour over the course of the season.

For reference, on April 28, the windiest day of the year, the daily average wind speed is 11.2 miles per hour, while on January 23, the calmest day of the year, the daily average wind speed is 6.9 miles per hour.

The highest daily average wind speed during the fall is 8.5 miles per hour on October 27.

Average Wind Speed in the Fall in Tsagaan-Olom

Average Wind Speed in the Fall in Tsagaan-OlomSepOctNov0 mph0 mph2 mph2 mph4 mph4 mph6 mph6 mph8 mph8 mph10 mph10 mph12 mph12 mph14 mph14 mphSummerWinterOct 278.5 mphOct 278.5 mphSep 18.3 mphSep 18.3 mphNov 307.6 mphNov 307.6 mphOct 18.4 mphOct 18.4 mphNowNow
The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands.

The hourly average wind direction in Tsagaan-Olom throughout the fall is predominantly from the west, with a peak proportion of 42% on October 19.

Wind Direction in the Fall in Tsagaan-Olom

Wind Direction in the Fall in Tsagaan-OlomWSSepOctNov0%100%20%80%40%60%60%40%80%20%100%0%SummerWinterNowNowwestsouthnortheast
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).

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 Tsagaan-Olom typically lasts for 3.7 months (112 days), from around May 20 to around September 9, rarely starting before May 2 or after June 6, and rarely ending before August 25 or after September 25.

During the fall in Tsagaan-Olom, the chance that a given day is within the growing season is very rapidly decreasing falling from 75% to 0% over the course of the season.

Time Spent in Various Temperature Bands and the Growing Season in the Fall in Tsagaan-Olom

Time Spent in Various Temperature Bands and the Growing Season in the Fall in Tsagaan-OlomSepOctNov0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%SummerWinter75%Sep 175%Sep 1Nov 300%Nov 300%Oct 13%Oct 13%Nov 10%Nov 10%frigidfreezingvery coldcoldcoolcomfortablewarm
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.

The average accumulated growing degree days in Tsagaan-Olom are gradually increasing during the fall, increasing by 167°F, from 1,483°F to 1,651°F, over the course of the season.

Growing Degree Days in the Fall in Tsagaan-Olom

Growing Degree Days in the Fall in Tsagaan-OlomSepOctNov1,300°F1,300°F1,400°F1,400°F1,500°F1,500°F1,600°F1,600°F1,700°F1,700°F1,800°F1,800°F1,900°F1,900°FSummerWinterSep 11,483°FSep 11,483°FNov 301,651°FNov 301,651°FOct 11,628°FOct 11,628°FNov 11,650°FNov 11,650°FNowNow
The average growing degree days accumulated over the course of the fall, with 25th to 75th and 10th to 90th percentile bands.

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 in Tsagaan-Olom is very rapidly decreasing during the fall, falling by 3.9 kWh, from 5.8 kWh to 1.9 kWh, over the course of the season.

Average Daily Incident Shortwave Solar Energy in the Fall in Tsagaan-Olom

Average Daily Incident Shortwave Solar Energy in the Fall in Tsagaan-OlomSepOctNov0 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWh8 kWh8 kWhSummerWinterSep 15.8 kWhSep 15.8 kWhNov 301.9 kWhNov 301.9 kWhOct 14.4 kWhOct 14.4 kWhNov 12.9 kWhNov 12.9 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.

For the purposes of this report, the geographical coordinates of Tsagaan-Olom are 46.713 deg latitude, 96.526 deg longitude, and 5,397 ft elevation.

The topography within 2 miles of Tsagaan-Olom contains only modest variations in elevation, with a maximum elevation change of 456 feet and an average elevation above sea level of 5,454 feet. Within 10 miles contains only modest variations in elevation (2,044 feet). Within 50 miles contains large variations in elevation (7,598 feet).

The area within 2 miles of Tsagaan-Olom is covered by bare soil (100%), within 10 miles by bare soil (100%), and within 50 miles by bare soil (94%).

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

Tsagaan-Olom 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 Tsagaan-Olom, 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.

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.

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