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Longshan, Jilin Weather by Month and Climate Averages
Monthly normals · Rain · Snow
Sunshine · Freeze dates · Records · Best time to visit
What is the weather like in Longshan, Jilin?
Longshan, Jilin gets 620 mm of precipitation a year over about 86 rainy days. July is the warmest month (average high 29°C) and January the coldest (average low -18°C).
Humid continental climate
Longshan, Jilin has warm summers and cold winters. Daytime highs range from about -7°C in January to 29°C in July. August is usually the wettest month. The most comfortable time to visit is typically May and September, when daytime highs sit near 23°C.
| Season | Months | Avg low | Avg high |
|---|---|---|---|
| Winter | Dec–Feb | -16° | -5° |
| Spring | Mar–May | 3° | 15° |
| Summer | Jun–Aug | 18° | 28° |
| Autumn | Sep–Nov | 2° | 14° |
How much rain does Longshan get?
Longshan gets 620 mm of precipitation in an average year, spread over about 86 days with measurable rain. That is fewer rainy days than 57% of China.
August is the wettest month, with 168 mm. January is the driest, with 6 mm. July has the most rainy days, about 12.
The longest dry spell in the last five years lasted 71 days, to February 27, 2022.
From October 2025 to September 2026 Longshan got 365 mm of rain, against a normal of 620 mm for those months. August 2026 had the most, with 243 mm.
Longshan weather by month
Longshan weather in January
In January, Longshan averages a high of -7°C and a low of -18°C. It gets 6 mm of precipitation over about 4 rainy days. Estimated sunshine is 63% of daylight hours, derived from ERA5 cloud cover. The January record high is 6°C (1976) and the record low is -34°C (2018).
Longshan weather in February
In February, Longshan averages a high of -2°C and a low of -14°C. It gets 6 mm of precipitation over about 3 rainy days. Estimated sunshine is 60% of daylight hours, derived from ERA5 cloud cover. The February record high is 16°C (1992) and the record low is -33°C (2024).
Longshan weather in March
In March, Longshan averages a high of 6°C and a low of -6°C. It gets 14 mm of precipitation over about 5 rainy days. Estimated sunshine is 57% of daylight hours, derived from ERA5 cloud cover. The March record high is 23°C (2023) and the record low is -25°C (1971).
Longshan weather in April
In April, Longshan averages a high of 16°C and a low of 3°C. It gets 25 mm of precipitation over about 6 rainy days. Estimated sunshine is 52% of daylight hours, derived from ERA5 cloud cover. The April record high is 31°C (2015) and the record low is -11°C (1972).
Longshan weather in May
In May, Longshan averages a high of 23°C and a low of 11°C. It gets 62 mm of precipitation over about 10 rainy days. Estimated sunshine is 45% of daylight hours, derived from ERA5 cloud cover. The May record high is 36°C (2019) and the record low is -3°C (1972). May is one of the most comfortable months to visit.
Longshan weather in June
In June, Longshan averages a high of 27°C and a low of 16°C. It gets 92 mm of precipitation over about 12 rainy days. Estimated sunshine is 40% of daylight hours, derived from ERA5 cloud cover. The June record high is 37°C (1997) and the record low is 5°C (1992).
Longshan weather in July
In July, Longshan averages a high of 29°C and a low of 20°C. It gets 143 mm of precipitation over about 12 rainy days. Estimated sunshine is 32% of daylight hours, derived from ERA5 cloud cover. The July record high is 36°C (2002) and the record low is 11°C (2017).
Longshan weather in August
In August, Longshan averages a high of 28°C and a low of 18°C. It gets 168 mm of precipitation over about 12 rainy days. Estimated sunshine is 38% of daylight hours, derived from ERA5 cloud cover. The August record high is 36°C (2009) and the record low is 3°C (2017).
Longshan weather in September
In September, Longshan averages a high of 23°C and a low of 11°C. It gets 49 mm of precipitation over about 7 rainy days. Estimated sunshine is 48% of daylight hours, derived from ERA5 cloud cover. The September record high is 33°C (2002) and the record low is -3°C (1977). September is one of the most comfortable months to visit.
Longshan weather in October
In October, Longshan averages a high of 15°C and a low of 3°C. It gets 28 mm of precipitation over about 6 rainy days. Estimated sunshine is 64% of daylight hours, derived from ERA5 cloud cover. The October record high is 28°C (2019) and the record low is -13°C (1984).
Longshan weather in November
In November, Longshan averages a high of 3°C and a low of -7°C. It gets 18 mm of precipitation over about 5 rainy days. Estimated sunshine is 56% of daylight hours, derived from ERA5 cloud cover. The November record high is 21°C (2003) and the record low is -22°C (1992).
Longshan weather in December
In December, Longshan averages a high of -5°C and a low of -16°C. It gets 8 mm of precipitation over about 4 rainy days. Estimated sunshine is 72% of daylight hours, derived from ERA5 cloud cover. The December record high is 12°C (1989) and the record low is -32°C (2019).
Sunshine, humidity and wind in Longshan
December is the sunniest month in Longshan, with estimated sunshine of 72% of daylight hours from ERA5 cloud cover. July is the cloudiest, at 32%. The annual cloud-cover estimate is 52% of daylight hours; it is not a measurement of sunshine duration. Longshan is sunnier than 65% of China.
Humidity peaks in August at 81% and is lowest in April at 43%.
Longshan has about 6 days a year above 32°C. Longshan is cooler than 80% of China.
First and last freeze in Longshan
The first fall freeze in Longshan typically comes around October 9, and the last spring freeze around April 21. That leaves a frost-free growing season of about 171 days.
Longshan weather records
These records cover SIPING during 1970–2026. Earlier records or other stations in the city may differ.
The hottest temperature on record at the Longshan station is 37°C, on June 28, 1997. The coldest is -34°C, on January 11, 2018.
The wettest day in the available station history brought 167 mm of precipitation, on July 29, 2019.
42 all-time records have been set at the station since 1970.
The annual mean temperature has changed by +0.2°C per decade since 1970.
The best time to visit Longshan
The most comfortable time to visit is typically May and September, when daytime highs sit near 23°C.
Winter (December–February) is cold, with average highs around -5°C and lows near -16°C.
Spring (March–May) is mild, with average highs around 15°C and lows near 3°C.
Summer (June–August) is warm, with average highs around 28°C and lows near 18°C. It can feel humid.
Autumn (September–November) is mild, with average highs around 14°C and lows near 2°C.
Monthly climate
| Month | Average low | Average high | Precip | Rain days | Humidity | Estimated sunshine | Record high | Record low |
|---|---|---|---|---|---|---|---|---|
| January | -18° | -7° | 5.6 mm | 4 | 64% | 63% | 6° | -34° |
| February | -14° | -2° | 6.3 mm | 3 | 56% | 60% | 16° | -33° |
| March | -6° | 6° | 14 mm | 5 | 48% | 57% | 23° | -25° |
| April | 3° | 16° | 25 mm | 6 | 43% | 52% | 31° | -11° |
| May | 11° | 23° | 62 mm | 10 | 50% | 45% | 36° | -3° |
| June | 16° | 27° | 92 mm | 12 | 67% | 40% | 37° | 5° |
| July | 20° | 29° | 143 mm | 12 | 76% | 32% | 36° | 11° |
| August | 18° | 28° | 168 mm | 12 | 81% | 38% | 36° | 3° |
| September | 11° | 23° | 49 mm | 7 | 76% | 48% | 33° | -3° |
| October | 3° | 15° | 28 mm | 6 | 62% | 64% | 28° | -13° |
| November | -7° | 3° | 18 mm | 5 | 69% | 56% | 21° | -22° |
| December | -16° | -5° | 7.9 mm | 4 | 64% | 72% | 12° | -32° |
Station: SIPING, 73 km from the city. Temperature normal baseline: 1991–2020, calculated from available NOAA GHCN-Daily observations. Available station history: 1970–2026; record values refer to this station and period, not the entire city’s history. Precipitation includes rain and the water equivalent of frozen precipitation; snowfall depth is shown separately when available. Sources and methods
From ERA5 reanalysis. Sunshine is estimated from cloud cover.
Longshan climate questions
How much rain does Longshan get?
Longshan gets 620 mm of precipitation in an average year, over about 86 rainy days.
What is the wettest month in Longshan?
August is the wettest month in Longshan, with 168 mm. January is the driest, with 6 mm.
How many rainy days does Longshan have a year?
Longshan has about 86 days with measurable rain in an average year. July has the most, about 12.
What is the hottest month in Longshan?
July is the warmest month in Longshan, with an average high of 29°C.
What is the coldest month in Longshan?
January is the coldest month in Longshan, with an average low of -18°C.
What is the record high temperature in Longshan?
Within the available 1970–2026 station history, the record high at the Longshan station is 37°C, set on June 28, 1997. The record low is -34°C, on January 11, 2018.
What is the sunniest month in Longshan?
December is the sunniest month in Longshan, with estimated sunshine of 72% of daylight hours from ERA5 cloud cover. July is the cloudiest.
When is the first frost in Longshan?
The first fall freeze in Longshan typically comes around October 9. The last spring freeze is around April 21.
What is the best time to visit Longshan?
The most comfortable time to visit is typically May and September, when daytime highs sit near 23°C.