Longshan climate

Jilin, China · 42.89°N, 125.14°E · elevation 259 m · population 465,249

Warmest month
July
high 29 °C84 °F
Coldest month
January
low −20 °C−5 °F
Wettest month
August
163 mm6.4 in
Best time to visit
May and September
by our comfort score
Annual precipitation
656 mm26 in
January driest
Year average
6 °C43 °F
monsoon-influenced hot-summer humid continental (Dwa)

Longshan (Jilin, China) has a monsoon-influenced hot-summer humid continental climate (Köppen Dwa). The average temperature over the year is 6 °C43 °F, and about 656 mm26 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°JFMAMJJASOND29°84°−20°−5°January: high -9 °C / 15 °F, low -20 °C / -5 °FFebruary: high -4 °C / 24 °F, low -16 °C / 3 °FMarch: high 4 °C / 40 °F, low -7 °C / 19 °FApril: high 14 °C / 58 °F, low 1 °C / 33 °FMay: high 22 °C / 72 °F, low 8 °C / 47 °FJune: high 27 °C / 80 °F, low 15 °C / 59 °FJuly: high 29 °C / 84 °F, low 19 °C / 66 °FAugust: high 27 °C / 81 °F, low 17 °C / 63 °FSeptember: high 22 °C / 72 °F, low 10 °C / 51 °FOctober: high 14 °C / 56 °F, low 1 °C / 34 °FNovember: high 2 °C / 35 °F, low -8 °C / 18 °FDecember: high -7 °C / 19 °F, low -17 °C / 1 °F

Precipitation by month

Precipitation per month (mminches)
0501001502000246JJanuary: 5 mm / 0.2 inFFebruary: 11 mm / 0.4 inMMarch: 16 mm / 0.6 inAApril: 31 mm / 1.2 inMMay: 64 mm / 2.5 inJJune: 104 mm / 4.1 inJJuly: 143 mm / 5.6 inAAugust: 163 mm / 6.4 inSSeptember: 52 mm / 2.0 inOOctober: 36 mm / 1.4 inNNovember: 22 mm / 0.9 inDDecember: 10 mm / 0.4 in1636.4

Longshan climate table

Monthly averages, 2001–2025
MonthHigh °C°FLow °C°FMean °C°FPrecip. mminFrost days
Jan−915−20−5−15550.231
Feb−424−163−1014110.428
Mar440−719−229160.630
Apr1458133846311.215
May22728471560642.50
Jun2780155921691044.10
Jul2984196624751435.60
Aug2781176322721636.40
Sep227210511661522.00
Oct1456134745361.413
Nov235−818−327220.928
Dec−719−171−1210100.431
Year2984−20−564365626176

“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
Jan83%47%2.49:21
Feb75%49%3.310:28
Mar63%51%4.411:48
Apr55%57%5.013:20
May58%61%5.614:37
Jun67%66%5.415:20
Jul75%69%5.015:02
Aug77%61%4.713:55
Sep69%50%4.412:26
Oct68%43%3.210:57
Nov73%48%2.29:40
Dec80%49%1.99:02

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 Longshan is like

The warmest month is July, with an average high of 29 °C84 °F and a low of 19 °C66 °F. The coldest is January, when highs average −9 °C15 °F and lows −20 °C−5 °F. The climate is extremely continental — the average temperature swings by 38.5 °C69.3 °F between the coldest and the warmest month.

Annual precipitation is moderate at about 656 mm26 in. The wettest three-month stretch is June–August, which brings 62% of the annual total. Months with less than 20 mm0.8 in on average: December–March. The wettest month is August (163 mm6.4 in), the driest is January (5 mm0.2 in).

Relative humidity ranges from 55% in April to 83% in January. The clearest skies (lowest average cloud amount, 43%) are typical of October. Average wind speed near the ground ranges from 8 km/h (5 mph) in August to 14 km/h (9 mph) in April. Daylight lasts from about 9.0 hours in December to 15.3 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 January, at about 18 cm.

Best time to visit Longshan

Based on these averages, the most comfortable months for sightseeing and outdoor activities are May and September. Average highs then reach 22 °C72 °F to 22 °C72 °F. Precipitation is 52 mm2.0 in to 64 mm2.5 in per month.

The most challenging month is January, which is cold, with average highs of −9 °C15 °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 Longshan

  • Winter (December–February) — highs −915 to −4 °C24 °F, lows −20−5 to −16 °C3 °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 440 to 22 °C72 °F, lows −719 to 8 °C47 °F, about 37 mm1.5 in of precipitation a month. Pack long sleeves, a sweater and a medium jacket and an extra layer for the cooler mornings and evenings.
  • Summer (June–August) — highs 2780 to 29 °C84 °F, lows 1559 to 19 °C66 °F, about 137 mm5.4 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 235 to 22 °C72 °F, lows −818 to 10 °C51 °F, about 37 mm1.4 in of precipitation a month. Pack long sleeves, a sweater and a medium jacket and an extra layer for the cooler mornings and evenings.

How Longshan compares

The nearest larger place is Siping, about 69 km to the northwest. Compared with it, Longshan is on average 0.5 °C0.9 °F cooler. It receives 8% more precipitation (656 mm26 in vs 609 mm24 in). The difference is largest in September (0.6 °C1.1 °F cooler).

World Climates covers 547 places in China. By annual mean temperature, Longshan is the 491st warmest of them. By annual precipitation, it is the 363rd 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 Ussuriysk (Russia, Dwa), Artëm (Russia, Dwa) and Hyesan (North Korea, Dwb).

Nearby places

All places in China

Frequently asked questions

What is the warmest month in Longshan?

July is the warmest month in Longshan. Its average high is 29 °C (84 °F) and its average low is 19 °C (66 °F).

What is the coldest month in Longshan?

January is the coldest month. Its average high is -9 °C (15 °F) and its average low is -20 °C (-5 °F).

When does it rain the most in Longshan?

August is the wettest month with about 163 mm (6.4 in) of precipitation. January is the driest with about 5 mm (0.2 in).

What is the best time to visit Longshan?

Judging by long-term averages, the most comfortable months are May 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.

Sources and method