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Monthly climate in Ulan Us, China

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Ulan Us features a cold desert climate (BWk). Temperatures typically range between -15 °C (5 °F) and 27 °C (82 °F) through the year, but rarely can drop to -32 °C (-25 °F) or can rise to as high as 42 °C (107 °F). The average annual precipitation amounts to about 288 mm (11.3 inches) and receives 51 rainy days on the 1 mm (0.04 inches) threshold annually. Ulan Us enjoys an average of 3684 hours of sunshine throughout the year, and daylight varies from 8 hours 54 minutes to 15 hours 26 minutes per day.

Monthly average temperatures in Ulan Us, China

The warmest months in Ulan Us are June, July and August, with daily mean temperatures ranging from 24 to 27 °C (75 - 82 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -15 to -10 °C (5 - 15 °F) throughout the day. On average each year, Ulan Us experiences 106 days above 25 °C (77.0 °F) and 123 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Ulan Us. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum1°C
(34°F)		7°C
(45°F)		22°C
(72°F)		34°C
(94°F)		37°C
(99°F)		38°C
(100°F)		42°C
(107°F)		39°C
(102°F)		36°C
(98°F)		27°C
(81°F)		18°C
(65°F)		3°C
(38°F)
Mean maximum-3°C
(27°F)		3°C
(38°F)		18°C
(65°F)		30°C
(86°F)		35°C
(95°F)		34°C
(94°F)		39°C
(102°F)		37°C
(99°F)		34°C
(93°F)		24°C
(75°F)		15°C
(59°F)		0°C
(32°F)
Average high-11°C
(12°F)		-6°C
(22°F)		8°C
(47°F)		20°C
(68°F)		26°C
(79°F)		29°C
(85°F)		33°C
(92°F)		31°C
(87°F)		25°C
(78°F)		15°C
(59°F)		3°C
(38°F)		-8°C
(18°F)
Daily mean-15°C
(5°F)		-10°C
(15°F)		3°C
(38°F)		14°C
(57°F)		20°C
(68°F)		24°C
(75°F)		27°C
(82°F)		25°C
(77°F)		19°C
(67°F)		10°C
(50°F)		-1°C
(31°F)		-11°C
(12°F)
Average low-18°C
(-1°F)		-13°C
(8°F)		-1°C
(30°F)		7°C
(45°F)		13°C
(57°F)		18°C
(65°F)		21°C
(71°F)		19°C
(66°F)		13°C
(56°F)		5°C
(42°F)		-4°C
(25°F)		-14°C
(7°F)
Mean minimum-27°C
(-17°F)		-23°C
(-9°F)		-10°C
(14°F)		1°C
(34°F)		5°C
(42°F)		13°C
(55°F)		17°C
(63°F)		14°C
(57°F)		6°C
(44°F)		-1°C
(31°F)		-13°C
(10°F)		-21°C
(-6°F)
Minimum-32°C
(-25°F)		-28°C
(-17°F)		-14°C
(6°F)		-0°C
(31°F)		3°C
(37°F)		8°C
(46°F)		13°C
(56°F)		12°C
(54°F)		3°C
(38°F)		-2°C
(29°F)		-15°C
(6°F)		-28°C
(-19°F)

Compare climate in Ulan Us with other places

Compare temperature, precipitation, sunshine, UV index in Ulan Us, China with other places around the world.

Monthly average precipitation in Ulan Us, China

Ulan Us usually has the most precipitation in April, May and September, with an average of 6 rainy days and 41 mm (1.6 inches) of precipitation per month. The driest months in Ulan Us are January, February and December. On average, 8 mm (0.3 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Ulan Us. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)7 (0.3)8 (0.3)20 (0.8)46 (1.8)47 (1.8)27 (1.1)14 (0.6)28 (1.1)30 (1.2)29 (1.1)23 (0.9)9 (0.4)
Average precipitation days (≥ 1 mm)124776354561

Monthly sunshine hours in Ulan Us, China

The sunniest months in Ulan Us are May, July and August, when the sun shines an average of 12 hours 25 minutes a day. Least sunny months in Ulan Us: January, November and December receive an average of 7 hours 3 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Ulan Us. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours183244315330377365399378334290243221
Mean daily daylight hours9h 15m10h 26m11h 56m13h 28m14h 46m15h 26m15h 6m13h 56m12h 28m10h 57m9h 36m8h 54m

Solar UV radiation in Ulan Us, China

Ulan Us experiences the highest level of ultraviolet (UV) radiation in May, June and July, when the maximum UV index can reach values of 9 - 10, which corresponds to the Very High category of sun exposure. January, November 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 Ulan Us UV Index data.

Average daily maximum UV levels by month for Ulan Us. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)2457991087532