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Weather & Climate in Bayan, Mongolia
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Bayan has a cool climate with an average annual temperature of 30°F (-1°C). Winters average 9°F in January while summers reach 60°F in July. The area gets 337 sunny days per year, well above the U.S. average of 205 / making it one of the sunnier locations in the country. Annual precipitation totals 7.8 inches (drier than the 38-inch national average). The area receives 16.1 inches of snow annually, a moderate snowfall amount. The city sits at an elevation of 6,063 feet.
Temperature
9°F Jan (-13°C)
60°F Jul (16°C)
| Annual Average | 29.8°F |
| 45% below US avg | |
| January Average | 9°F (-13°C) |
| July Average | 60°F (16°C) |
| Sunny Days | 337 days/yr |
Geography
| Elevation | 6,063 ft (1,848 m) |
| Area | 834.4 sq mi (2,161.0 km²) |
| Population Density | 0/sq mi |
| Coordinates | 46.9929°N, 95.1996°W |
| Timezone | Asia/Hovd |
Precipitation & Snow
Air Quality
Earthquake History
20 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M5.5.
| Mar 20, 2020 | 178 km WSW of Altai, Mongolia | M5.5 | 140 km | 10 km |
| Nov 1, 2002 | 173 km WSW of Altai, Mongolia | M5.1 | 134 km | 10 km |
| Mar 1, 2001 | 171 km WSW of Altai, Mongolia | M5.1 | 135 km | 33 km |
| Sep 14, 2016 | 194 km W of Altai, Mongolia | M4.9 | 148 km | 16 km |
| Apr 8, 1990 | 73 km SW of Uliastay, Mongolia | M4.9 | 85 km | 15 km |
| Mar 29, 2010 | 192 km SE of Khovd, Mongolia | M4.8 | 141 km | 21 km |
| Jan 25, 2004 | 48 km E of Altai, Mongolia | M4.7 | 149 km | 25 km |
| Aug 21, 1998 | 44 km NW of Altai, Mongolia | M4.7 | 63 km | 20 km |
| Nov 6, 1998 | 159 km SE of Khovd, Mongolia | M4.6 | 144 km | 33 km |
| Aug 20, 2023 | 78 km SSW of Uliastay, Mongolia | M4.4 | 99 km | 10 km |
| Jan 16, 2013 | 157 km WNW of Altai, Mongolia | M4.2 | 72 km | 10 km |
| Mar 20, 2020 | 181 km WSW of Altai, Mongolia | M4.2 | 140 km | 10 km |
| Feb 17, 2020 | 66 km NNW of Altai, Mongolia | M4.2 | 56 km | 10 km |
| Mar 23, 2020 | 186 km W of Altai, Mongolia | M4.2 | 136 km | 10 km |
| Apr 25, 2003 | 32 km SSE of Altai, Mongolia | M4.2 | 136 km | 33 km |
| Jan 30, 2004 | 41 km E of Altai, Mongolia | M4.1 | 141 km | 2 km |
| Jul 17, 2002 | 142 km W of Altai, Mongolia | M4.0 | 83 km | 16 km |
| Feb 26, 1999 | 36 km SW of Altai, Mongolia | M3.9 | 107 km | 33 km |
| Feb 23, 2005 | 73 km WSW of Altai, Mongolia | M3.5 | 100 km | 10 km |
| Jan 6, 2006 | 65 km SW of Uliastay, Mongolia | M3.3 | 89 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 9°F (-13°C) | 0.1 in | Driest |
| February | 1°F (-17°C) | 0.1 in | |
| March | 15°F (-10°C) | 0.2 in | |
| April | 34°F (1°C) | 0.4 in | |
| May | 48°F (9°C) | 0.5 in | |
| June | 57°F (14°C) | 1.0 in | |
| July | 60°F (16°C) | 1.7 in | Warmest, Wettest |
| August | 57°F (14°C) | 1.3 in | |
| September | 46°F (8°C) | 0.7 in | |
| October | 31°F (-0°C) | 0.3 in | |
| November | 13°F (-11°C) | 0.2 in | |
| December | 1°F (-18°C) | 0.2 in | Coldest |
Bayan has a seasonal temperature swing of 60°F / from 1°F in December to 60°F in July. Total annual precipitation is 6.7 inches, with July being the wettest month (1.7") and January the driest (0.1").