Heihe climate

Heilongjiang, China · 50.24°N, 127.49°E · elevation 139 m · population 223,832

Warmest month
July
high 28 °C82 °F
Coldest month
January
low −28 °C−19 °F
Wettest month
July
137 mm5.4 in
Best time to visit
May and June and August and September
by our comfort score
Annual precipitation
588 mm23 in
January driest
Year average
1 °C34 °F
monsoon-influenced hot-summer humid continental (Dwa)

Heihe (Heilongjiang, China) has a monsoon-influenced hot-summer humid continental climate (Köppen Dwa). The average temperature over the year is 1 °C34 °F, and about 588 mm23 in of precipitation falls in an average year.

Temperature by month

Average highAverage low
-30°-20°-10°0°10°20°30°-20°0°20°40°60°80°JFMAMJJASOND28°82°−28°−19°January: high -18 °C / -1 °F, low -28 °C / -19 °FFebruary: high -13 °C / 9 °F, low -25 °C / -13 °FMarch: high -2 °C / 28 °F, low -14 °C / 7 °FApril: high 10 °C / 50 °F, low -2 °C / 28 °FMay: high 19 °C / 67 °F, low 6 °C / 43 °FJune: high 25 °C / 77 °F, low 13 °C / 56 °FJuly: high 28 °C / 82 °F, low 17 °C / 62 °FAugust: high 25 °C / 78 °F, low 14 °C / 58 °FSeptember: high 19 °C / 66 °F, low 7 °C / 44 °FOctober: high 8 °C / 46 °F, low -3 °C / 27 °FNovember: high -6 °C / 21 °F, low -15 °C / 6 °FDecember: high -17 °C / 1 °F, low -26 °C / -15 °F

Precipitation by month

Precipitation per month (mminches)
050100150024JJanuary: 7 mm / 0.3 inFFebruary: 9 mm / 0.3 inMMarch: 13 mm / 0.5 inAApril: 28 mm / 1.1 inMMay: 67 mm / 2.7 inJJune: 98 mm / 3.8 inJJuly: 137 mm / 5.4 inAAugust: 112 mm / 4.4 inSSeptember: 63 mm / 2.5 inOOctober: 29 mm / 1.2 inNNovember: 15 mm / 0.6 inDDecember: 10 mm / 0.4 in1375.4

Heihe climate table

Monthly averages, 2001–2025
MonthHigh °C°FLow °C°FMean °C°FPrecip. mminFrost days
Jan−18−1−28−19−23−1070.331
Feb−139−25−13−19−290.328
Mar−228−147−818130.531
Apr1050−228439281.124
May19676431355672.72
Jun257713561967983.80
Jul2882176222721375.40
Aug2578145820681124.40
Sep19667441355632.52
Oct846−327236291.224
Nov−621−156−1014150.630
Dec−171−26−15−21−7100.431
Year2882−28−1913458823204

“Year” row: highest monthly high, lowest monthly low, annual mean and annual total. Frost days are for the whole grid cell.

Humidity, cloud, sun and daylight
MonthHumid.CloudSolarDaylight
Jan93%41%1.78:29
Feb92%47%2.89:59
Mar82%55%4.311:43
Apr63%61%5.013:43
May63%68%5.515:25
Jun69%67%5.916:23
Jul74%70%5.415:59
Aug75%66%4.714:28
Sep72%56%3.812:32
Oct73%57%2.610:37
Nov82%58%1.68:55
Dec91%49%1.38:03

Humid. = average relative humidity at 2 m; cloud = average cloud amount; solar = average daily solar energy reaching the ground in kWh/m² (all-sky); daylight in hours:minutes, calculated for the 15th of each month.

What the climate of Heihe is like

The warmest month is July, with an average high of 28 °C82 °F and a low of 17 °C62 °F. The coldest is January, when highs average −18 °C−1 °F and lows −28 °C−19 °F. The climate is extremely continental — the average temperature swings by 45.4 °C81.6 °F between the coldest and the warmest month.

Annual precipitation is moderate at about 588 mm23 in. The wettest three-month stretch is June–August, which brings 59% of the annual total. Months with less than 20 mm0.8 in on average: November–March. The wettest month is July (137 mm5.4 in), the driest is January (7 mm0.3 in).

Relative humidity ranges from 63% in May to 93% in January. The clearest skies (lowest average cloud amount, 41%) are typical of January. Average wind speed near the ground ranges from 5 km/h (3 mph) in July to 9 km/h (6 mph) in March. Daylight lasts from about 8.1 hours in December to 16.4 hours in June.

A lasting snow cover is typical in November–March. In those months the average snow depth in the reanalysis exceeds 10 cm. It is deepest in February, at about 19 cm.

Best time to visit Heihe

Based on these averages, the most comfortable months for sightseeing and outdoor activities are May and June and August and September. Average highs then reach 19 °C66 °F to 25 °C78 °F. Precipitation is 63 mm2.5 in to 112 mm4.4 in per month.

The most challenging month is January, which is cold, with average highs of −18 °C−1 °F.

Comfort score: months are ranked by how close they come to an ideal. That means an average high of 21–28 °C (70–82 °F), lows above 5 °C (41 °F), little precipitation and moderate humidity. The best-ranked months of each place are recommended, even where none meets all of these. These are general rules of thumb applied to long-term averages.

What to pack for Heihe

  • Winter (December–February) — highs −18−1 to −13 °C9 °F, lows −28−19 to −25 °C−13 °F, about 9 mm0.3 in of precipitation a month. Pack heavy insulated clothing, thermal base layers, a warm hat, mittens and insulated boots and an extra layer for the cooler mornings and evenings.
  • Spring (March–May) — highs −228 to 19 °C67 °F, lows −147 to 6 °C43 °F, about 36 mm1.4 in of precipitation a month. Pack a warm coat, layers and closed shoes, an extra layer for the cooler mornings and evenings and shoes with good grip, as frost is common.
  • Summer (June–August) — highs 2577 to 28 °C82 °F, lows 1356 to 17 °C62 °F, about 115 mm4.5 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses, an extra layer for the cooler mornings and evenings and an umbrella or light rain jacket.
  • Autumn (September–November) — highs −621 to 19 °C66 °F, lows −156 to 7 °C44 °F, about 36 mm1.4 in of precipitation a month. Pack a warm coat, layers and closed shoes, an extra layer for the cooler mornings and evenings and shoes with good grip, as frost is common.

How Heihe compares

The nearest larger place is Blagoveshchensk, about 4 km to the northeast. Compared with it, Heihe is on average 0.4 °C0.6 °F warmer. It receives a similar amount of precipitation. The difference is largest in December (0.8 °C1.4 °F warmer).

World Climates covers 547 places in China. By annual mean temperature, Heihe is the 543rd warmest of them. By annual precipitation, it is the 413th wettest. See all of them on the China climate page.

Some places in other countries have a very similar pattern of temperature and rainfall. The closest matches are Blagoveshchensk (Russia, Dwa), Birobidzhan (Russia, Dwb) and Khabarovsk (Russia, Dwb).

Nearby places

All places in China

Frequently asked questions

What is the warmest month in Heihe?

July is the warmest month in Heihe. Its average high is 28 °C (82 °F) and its average low is 17 °C (62 °F).

What is the coldest month in Heihe?

January is the coldest month. Its average high is -18 °C (-1 °F) and its average low is -28 °C (-19 °F).

When does it rain the most in Heihe?

July is the wettest month with about 137 mm (5.4 in) of precipitation. January is the driest with about 7 mm (0.3 in).

What is the best time to visit Heihe?

Judging by long-term averages, the most comfortable months are May and June and August and September.

About this data

All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station. So they can differ from airport records. The gaps are largest on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.

The grid cell’s average elevation is 216 m, while Heihe lies at about 139 m. Temperatures on this page were therefore adjusted by +0.5 °C0.9 °F using the standard lapse rate of 6.5 °C per 1,000 m.

Sources and method