Longchi climate — normals and trends
Longchi (China) has a hot-summer humid continental, dry winter climate (Dwa) under the Köppen-Geiger classification. Its mean annual temperature is 13.3 °C and it receives 733 mm of precipitation per year.
These figures are normals computed over 86 complete calendar years, from 1940 to 2025, using ERA5 reanalysis data from the Copernicus programme.
The warmest month is July (26.5 °C on average) and the coldest is January (-1.7 °C). Rainfall peaks in July.
Longchi averages 93 frost days, 44 hot days (≥ 30 °C) and 75 rainy days per year.
Longchi has warmed by +1.8 °C between 1940 and 2025, or +0.21 °C per decade. This trend is statistically significant.
The number of frost days there went from about 104 to 82 per year over the period.
The hottest day of the period reached 40.8 °C (on 25 June 2009) and the coldest -19.8 °C (on 18 January 1958).
Data from ERA5 reanalysis (Copernicus Climate Change Service), redistributed under a CC-BY 4.0 licence. Normals are recomputed whenever the archive is updated.
Climate normals · ERA5
LongchiShandong
- coords
- 36.95°, 119.33°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
13.3°C
Average daily high
17.5°C
Average daily low
9.5°C
Annual rainfall
733mm
Sunshine / day
9.1h
Mean relative humidity
67%
Average peak wind
18.9km/h
Seasonal range
28.2°C
Frost days (< 0 °C)
93 d/yr
Hot days (≥ 30 °C)
44 d/yr
Rainy days (≥ 1 mm)
75 d/yr
Annual snowfall
14.7 cm
Average feels-like high
16.3 °C
Average feels-like low
7.6 °C
Average peak gust
34.6 km/h
Tropical nights (≥ 20 °C)
81 d/yr
Solar radiation
15.7 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.8 °C
since 1940
+0.2 °C per decade · r² = 0.42 · p = < 0.001
Trend fitted by linear regression (ordinary least squares) on annual means. A trend is shown only when it is statistically significant (p < 0.05).
A climograph overlays rainfall (bars) and temperature (line): the standard reading in climatology, where you can see at a glance whether the warm season is also the dry one.
Records for the period
Hottest day
40.8 °C
25 June 2009
Coldest day
-19.8 °C
18 January 1958
Wettest day
173 mm
6 July 1947
Windiest day
66.9 km/h
2 August 1940
Strongest gust
123.5 km/h
2 August 1940
Hottest feels-like
44.4 °C
7 August 1967
Coldest feels-like
-24.9 °C
18 January 1958
Snowiest day
14.8 cm
29 January 1979
Sunniest day
14.0 h
17 May 1940
Normals computed over complete calendar years 1940–2025.
A specific year
Pick a year and see how it compares to normal — warmer, drier or more extreme than usual?
Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 5.3 °C | +2.9 °C | 1 mm | -8 mm |
| Feb | 6.1 °C | +1.4 °C | 2 mm | -12 mm |
| Mar | 14.1 °C | +3.2 °C | 45 mm | +24 mm |
| Apr | 22.3 °C | +4.1 °C | 37 mm | -6 mm |
| May | 26.0 °C | +1.9 °C | 34 mm | -25 mm |
| Jun | 31.7 °C | +3.4 °C | 71 mm | -12 mm |
| Jul | 33.3 °C | +3.4 °C | 138 mm | -57 mm |
| Aug | 32.2 °C | +2.9 °C | 119 mm | -38 mm |
| Sep | 27.0 °C | +1.4 °C | 160 mm | +84 mm |
| Oct | 18.3 °C | -1.5 °C | 170 mm | +132 mm |
| Nov | 15.0 °C | +2.9 °C | 3 mm | -23 mm |
| Dec | 7.2 °C | +2.3 °C | 15 mm | +2 mm |
The year's extremes
What was the weather like that day?
Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.
Frequently asked questions
What is the climate of Longchi?
Longchi has a hot-summer humid continental, dry winter climate (Köppen Dwa). Over 1940-2025, the average annual temperature is 13.3 °C and it receives 733 mm of precipitation per year.
What is the hottest day ever recorded in Longchi?
The hottest day measured in Longchi between 1940 and 2025 was 25 June 2009, reaching 40.8 °C.
What is the coldest day in Longchi?
The coldest day measured in Longchi between 1940 and 2025 was 18 January 1958, at -19.8 °C.
Does it snow in Longchi?
Yes. Longchi gets on average 14.7 cm of snow per year and has around 93 frost days.
Has the climate of Longchi warmed?
Yes: Longchi warmed by +1.8 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Longchi?
The wettest day measured in Longchi between 1940 and 2025 was 6 July 1947, with 173 mm of rain in 24 hours.
What was the windiest day in Longchi?
The windiest day measured in Longchi between 1940 and 2025 was 2 August 1940, with winds reaching 66.9 km/h.
What is the warmest month in Longchi?
The warmest month in Longchi is July (26.5 °C on average); the coldest is January (-1.7 °C).
How much does it rain in Longchi?
Longchi receives on average 733 mm of precipitation per year, spread over about 75 rainy days.
Is it sunny in Longchi?
Longchi gets on average 9.1 hours of sunshine per day, roughly 3,322 hours per year over 1940-2025.
What is the biggest single-day snowfall in Longchi?
The heaviest 24-hour snowfall measured in Longchi between 1940 and 2025 was 29 January 1979, with 14.8 cm.
Are there tropical nights in Longchi?
Yes: Longchi has on average 81 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Longchi?
In Longchi, between 1940 and 2025, the highest apparent temperature reached 44.4 °C on 7 August 1967, and the lowest was -24.9 °C on 18 January 1958.
Compare Longchi with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Longchi