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Monthly climate in Heyin, China

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Heyin features a subarctic climate (Dwc). Temperatures typically range between -8 °C (18 °F) and 16 °C (60 °F) through the year, but rarely can drop to -23 °C (-9 °F) or can rise to as high as 30 °C (86 °F). The average annual precipitation amounts to about 544 mm (21.4 inches) and receives 96 rainy days on the 1 mm (0.04 inches) threshold annually. Heyin enjoys an average of 3636 hours of sunshine throughout the year, and daylight varies from 9 hours 44 minutes to 14 hours 33 minutes per day.

Monthly average temperatures in Heyin, China

The warmest months in Heyin are June, July and August, with daily mean temperatures ranging from 13 to 16 °C (55 - 60 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -8 to -5 °C (18 - 23 °F) throughout the day. On average each year, Heyin experiences 5 days above 25 °C (77.0 °F) and 177 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Heyin. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum11°C
(52°F)		13°C
(56°F)		19°C
(67°F)		23°C
(74°F)		24°C
(76°F)		25°C
(77°F)		30°C
(86°F)		26°C
(80°F)		23°C
(74°F)		21°C
(69°F)		16°C
(61°F)		7°C
(45°F)
Mean maximum6°C
(44°F)		10°C
(49°F)		16°C
(61°F)		20°C
(68°F)		23°C
(73°F)		22°C
(72°F)		27°C
(80°F)		25°C
(77°F)		22°C
(71°F)		18°C
(64°F)		13°C
(56°F)		6°C
(43°F)
Average high-0°C
(31°F)		3°C
(37°F)		8°C
(47°F)		12°C
(54°F)		15°C
(60°F)		18°C
(64°F)		21°C
(70°F)		20°C
(68°F)		16°C
(61°F)		11°C
(51°F)		5°C
(41°F)		0°C
(33°F)
Daily mean-8°C
(18°F)		-5°C
(23°F)		1°C
(34°F)		5°C
(42°F)		9°C
(49°F)		13°C
(55°F)		16°C
(60°F)		14°C
(58°F)		11°C
(51°F)		4°C
(40°F)		-2°C
(28°F)		-7°C
(19°F)
Average low-15°C
(6°F)		-12°C
(10°F)		-6°C
(22°F)		-1°C
(30°F)		4°C
(39°F)		8°C
(47°F)		10°C
(51°F)		10°C
(50°F)		6°C
(43°F)		-1°C
(31°F)		-8°C
(17°F)		-13°C
(9°F)
Mean minimum-20°C
(-4°F)		-18°C
(-0°F)		-12°C
(11°F)		-8°C
(17°F)		-3°C
(28°F)		4°C
(39°F)		7°C
(44°F)		6°C
(42°F)		1°C
(34°F)		-7°C
(20°F)		-13°C
(8°F)		-19°C
(-2°F)
Minimum-22°C
(-7°F)		-20°C
(-4°F)		-14°C
(8°F)		-14°C
(8°F)		-5°C
(24°F)		2°C
(36°F)		6°C
(43°F)		4°C
(39°F)		-1°C
(31°F)		-8°C
(17°F)		-16°C
(3°F)		-23°C
(-9°F)

Compare climate in Heyin with other places

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

Monthly average precipitation in Heyin, China

Heyin usually has the most precipitation in July, August and September, with an average of 14 rainy days and 93 mm (3.7 inches) of precipitation per month. The driest months in Heyin are January, February and December. On average, 5 mm (0.2 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Heyin. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)6 (0.2)7 (0.3)15 (0.6)37 (1.5)59 (2.3)84 (3.3)85 (3.3)108 (4.2)87 (3.4)43 (1.7)9 (0.4)4 (0.2)
Average precipitation days (≥ 1 mm)22491013131515931

Monthly sunshine hours in Heyin, China

The sunniest months in Heyin are May, July and August, when the sun shines an average of 10 hours 56 minutes a day. Least sunny months in Heyin: January, February and November receive an average of 8 hours 52 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Heyin. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours234282319311331318360325289291282288
Mean daily daylight hours10h 0m10h 51m11h 58m13h 6m14h 4m14h 33m14h 18m13h 27m12h 22m11h 14m10h 15m9h 44m

Solar UV radiation in Heyin, China

Heyin experiences the highest level of ultraviolet (UV) radiation in May, June and July, when the maximum UV index can reach values of 14 - 14, which corresponds to the Extreme category of sun exposure. January, February and December are in the Moderate / High exposure category. In these months, the maximum values of the UV index do not exceed 6. For more detailed information, check out our hourly Heyin UV Index data.

Average daily maximum UV levels by month for Heyin. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)469111414141211964