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Weather & Climate in Bayan Uula Sumu, Mongolia
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Bayan Uula Sumu has a cool climate with an average annual temperature of 33°F (0°C). Winters average 11°F in January while summers reach 63°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 8.3 inches (drier than the 38-inch national average). The area receives 9.8 inches of snow annually. The city sits at an elevation of 4,085 feet.
Temperature
11°F Jan (-12°C)
63°F Jul (17°C)
| Annual Average | 32.8°F |
| 39% below US avg | |
| January Average | 11°F (-12°C) |
| July Average | 63°F (17°C) |
| Sunny Days | 337 days/yr |
Geography
| Elevation | 4,085 ft (1,245 m) |
| Area | 3,720.7 sq mi (9,636.7 km²) |
| Population Density | 0/sq mi |
| Coordinates | 45.1667°N, 101.4000°W |
| Timezone | Asia/Ulaanbaatar |
Precipitation & Snow
Air Quality
Earthquake History
24 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M5.7.
| Apr 30, 2006 | 24 km SE of Hovd, Mongolia | M5.7 | 106 km | 7 km |
| Jul 7, 2006 | 19 km SE of Hovd, Mongolia | M5.0 | 102 km | 10 km |
| Mar 4, 2009 | 100 km SSE of Bayanhongor, Mongolia | M4.9 | 30 km | 10 km |
| Jan 23, 2003 | 20 km NW of Hovd, Mongolia | M4.8 | 62 km | 33 km |
| Oct 19, 2011 | 129 km SSW of Bayanhongor, Mongolia | M4.7 | 115 km | 10 km |
| Apr 6, 1992 | 40 km SW of Hovd, Mongolia | M4.7 | 88 km | 33 km |
| Jan 29, 1995 | 139 km SSW of Bayanhongor, Mongolia | M4.6 | 104 km | 33 km |
| Jan 4, 2006 | 30 km WNW of Hovd, Mongolia | M4.6 | 56 km | 10 km |
| Jun 4, 1991 | central Mongolia | M4.5 | 116 km | 10 km |
| Mar 26, 2023 | 21 km WNW of Hovd, Mongolia | M4.5 | 62 km | 10 km |
| Jul 4, 2017 | 66 km WSW of Hovd, Mongolia | M4.5 | 81 km | 13 km |
| Sep 29, 2016 | 137 km WNW of Hovd, Mongolia | M4.5 | 77 km | 15 km |
| Mar 8, 1995 | 126 km WNW of Hovd, Mongolia | M4.4 | 66 km | 33 km |
| Aug 2, 2006 | 15 km ENE of Hovd, Mongolia | M4.4 | 92 km | 10 km |
| Jun 11, 2017 | 63 km WSW of Hovd, Mongolia | M4.3 | 69 km | 15 km |
| Jul 16, 1998 | 88 km S of Bayanhongor, Mongolia | M4.1 | 73 km | 33 km |
| Mar 24, 2024 | 136 km SSW of Bayanhongor, Mongolia | M4.1 | 112 km | 10 km |
| Mar 10, 1994 | 64 km SW of Hovd, Mongolia | M4.0 | 110 km | 33 km |
| May 1, 2006 | 13 km SE of Hovd, Mongolia | M3.9 | 95 km | 10 km |
| Sep 12, 2004 | 138 km SSW of Bayanhongor, Mongolia | M3.9 | 104 km | 47 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 11°F (-12°C) | 0.1 in | Driest |
| February | 6°F (-15°C) | 0.1 in | |
| March | 18°F (-8°C) | 0.2 in | |
| April | 36°F (2°C) | 0.4 in | |
| May | 50°F (10°C) | 0.6 in | |
| June | 59°F (15°C) | 1.6 in | |
| July | 63°F (17°C) | 2.6 in | Warmest, Wettest |
| August | 59°F (15°C) | 2.1 in | |
| September | 48°F (9°C) | 0.8 in | |
| October | 34°F (1°C) | 0.3 in | |
| November | 16°F (-9°C) | 0.2 in | |
| December | 4°F (-15°C) | 0.1 in | Coldest |
Bayan Uula Sumu has a seasonal temperature swing of 58°F / from 4°F in December to 63°F in July. Total annual precipitation is 9.1 inches, with July being the wettest month (2.6") and January the driest (0.1").