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Monthly climate in Bayantohom, Mongolia

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Bayantohom features a cold semi-arid climate (BSk). Temperatures typically range between -18 °C (1 °F) and 21 °C (70 °F) through the year, but rarely can drop to -38 °C (-36 °F) or can rise to as high as 39 °C (102 °F). The average annual precipitation amounts to about 226 mm (8.9 inches) and receives 41 rainy days on the 1 mm (0.04 inches) threshold annually. Bayantohom enjoys an average of 3776 hours of sunshine throughout the year, and daylight varies from 8 hours 34 minutes to 15 hours 48 minutes per day.

Monthly average temperatures in Bayantohom, Mongolia

The warmest months in Bayantohom are June, July and August, with daily mean temperatures ranging from 18 to 21 °C (64 - 70 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -18 to -14 °C (1 - 7 °F) throughout the day. On average each year, Bayantohom experiences 49 days above 25 °C (77.0 °F) and 193 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Bayantohom. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum0°C
(33°F)		11°C
(53°F)		20°C
(68°F)		29°C
(84°F)		34°C
(94°F)		35°C
(96°F)		39°C
(102°F)		33°C
(91°F)		30°C
(87°F)		26°C
(79°F)		14°C
(57°F)		6°C
(44°F)
Mean maximum-2°C
(28°F)		5°C
(41°F)		15°C
(59°F)		24°C
(76°F)		31°C
(88°F)		31°C
(89°F)		34°C
(94°F)		31°C
(88°F)		27°C
(81°F)		20°C
(68°F)		12°C
(53°F)		-1°C
(31°F)
Average high-11°C
(13°F)		-6°C
(21°F)		4°C
(40°F)		12°C
(55°F)		19°C
(67°F)		25°C
(77°F)		26°C
(80°F)		23°C
(74°F)		19°C
(67°F)		10°C
(49°F)		-1°C
(31°F)		-9°C
(15°F)
Daily mean-18°C
(1°F)		-14°C
(7°F)		-3°C
(27°F)		5°C
(41°F)		12°C
(54°F)		18°C
(66°F)		21°C
(70°F)		18°C
(64°F)		12°C
(54°F)		2°C
(36°F)		-7°C
(19°F)		-16°C
(4°F)
Average low-23°C
(-9°F)		-20°C
(-4°F)		-10°C
(15°F)		-2°C
(28°F)		4°C
(40°F)		11°C
(53°F)		15°C
(59°F)		12°C
(54°F)		6°C
(43°F)		-4°C
(26°F)		-12°C
(10°F)		-21°C
(-6°F)
Mean minimum-31°C
(-24°F)		-28°C
(-18°F)		-19°C
(-3°F)		-10°C
(15°F)		-4°C
(26°F)		3°C
(38°F)		9°C
(48°F)		7°C
(45°F)		-1°C
(31°F)		-10°C
(15°F)		-22°C
(-7°F)		-30°C
(-23°F)
Minimum-38°C
(-36°F)		-35°C
(-30°F)		-22°C
(-8°F)		-12°C
(11°F)		-5°C
(24°F)		1°C
(33°F)		7°C
(45°F)		6°C
(42°F)		-6°C
(22°F)		-12°C
(11°F)		-23°C
(-10°F)		-37°C
(-35°F)

Compare climate in Bayantohom with other places

Compare temperature, precipitation, sunshine, UV index in Bayantohom, Mongolia with other places around the world.

Monthly average precipitation in Bayantohom, Mongolia

Bayantohom usually has the most precipitation in July, August and September, with an average of 8 rainy days and 46 mm (1.8 inches) of precipitation per month. The driest months in Bayantohom are January, March and December. On average, 3 mm (0.1 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Bayantohom. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)2 (0.1)4 (0.2)4 (0.2)15 (0.6)14 (0.6)25 (1.0)42 (1.7)68 (2.7)29 (1.2)12 (0.5)8 (0.3)2 (0.1)
Average precipitation days (≥ 1 mm)0013259116310

Monthly sunshine hours in Bayantohom, Mongolia

The sunniest months in Bayantohom are May, June and July, when the sun shines an average of 12 hours 16 minutes a day. Least sunny months in Bayantohom: January, November and December receive an average of 7 hours 57 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Bayantohom. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours208269329335379371379354321303266258
Mean daily daylight hours8h 58m10h 16m11h 55m13h 36m15h 3m15h 48m15h 25m14h 8m12h 31m10h 50m9h 21m8h 34m

Solar UV radiation in Bayantohom, Mongolia

Bayantohom experiences the highest level of ultraviolet (UV) radiation in May, June and August, when the maximum UV index can reach values of 9 - 10, which corresponds to the Very High category of sun exposure. January, February and December are in the Low / Moderate exposure category. In these months, the maximum values of the UV index do not exceed 3. For more detailed information, check out our hourly Bayantohom UV Index data.

Average daily maximum UV levels by month for Bayantohom. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)2357910997532