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Weather & Climate in Yanshan, China
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Yanshan enjoys a temperate climate with an average annual temperature of 65°F (19°C). Winters average 50°F in January while summers reach 81°F in July. The area gets 254 sunny days per year, above the national average. Annual precipitation totals 85.5 inches (wetter than the 38-inch national average). The city sits at an elevation of 518 feet.
Temperature
50°F Jan (10°C)
81°F Jul (27°C)
| Annual Average | 65.4°F |
| 21% above US avg | |
| January Average | 50°F (10°C) |
| July Average | 81°F (27°C) |
| Sunny Days | 254 days/yr |
Geography
| Elevation | 518 ft (158 m) |
| Area | 10,682.4 sq mi (27,667.4 km²) |
| Population Density | 0/sq mi |
| Coordinates | 25.1031°N, 110.2820°W |
| Timezone | Asia/Shanghai |
Precipitation & Snow
Air Quality
Earthquake History
1 earthquake (M2.5+) recorded within 150 km since 1990. Strongest on record: M3.6.
| Jul 24, 1993 | 26 km ESE of Xishan, China | M3.6 | 122 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
2 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 1.
| Year | Name | Category | Max Wind | Closest |
| 2012 | Vicente | Category 1 | — | 290 km |
| 1995 | Kent | Category 1 | — | 287 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 50°F (10°C) | 2.1 in | |
| February | 50°F (10°C) | 3.5 in | Coldest |
| March | 56°F (13°C) | 4.6 in | |
| April | 66°F (19°C) | 8.4 in | |
| May | 74°F (23°C) | 12.7 in | Wettest |
| June | 79°F (26°C) | 11.8 in | |
| July | 81°F (27°C) | 7.3 in | |
| August | 82°F (28°C) | 6.8 in | Warmest |
| September | 77°F (25°C) | 3.4 in | |
| October | 69°F (21°C) | 3.3 in | |
| November | 60°F (15°C) | 2.6 in | |
| December | 51°F (11°C) | 1.8 in | Driest |
Yanshan has a seasonal temperature swing of 32°F / from 50°F in February to 82°F in August. Total annual precipitation is 68.3 inches, with May being the wettest month (12.7") and December the driest (1.8").