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Weather & Climate in Yilan, China
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Yilan has a cool climate with an average annual temperature of 37°F (3°C). Winters average -2°F in January while summers reach 71°F in July / a wide seasonal temperature swing of 73°F. The area gets 295 sunny days per year, well above the U.S. average of 205 / making it one of the sunnier locations in the country. Annual precipitation totals 22.8 inches (drier than the 38-inch national average). The area receives 1.6 inches of snow annually. The city sits at an elevation of 302 feet.
Temperature
-2°F Jan (-19°C)
71°F Jul (22°C)
| Annual Average | 37.3°F |
| 31% below US avg | |
| January Average | -2°F (-19°C) |
| July Average | 71°F (22°C) |
| Sunny Days | 295 days/yr |
Geography
| Elevation | 302 ft (92 m) |
| Area | 66.2 sq mi (171.4 km²) |
| Population Density | 1,076/sq mi |
| Coordinates | 46.3223°N, 129.5608°W |
| Timezone | Asia/Shanghai |
Precipitation & Snow
Air Quality
Earthquake History
3 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.8.
| Nov 19, 2013 | 20 km NNE of Boli, China | M4.8 | 94 km | 15 km |
| Jan 15, 2018 | 28 km NNE of Yilan, China | M4.5 | 28 km | 10 km |
| Mar 8, 2022 | 25 km ESE of Hegang, China | M4.2 | 130 km | 15 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | -2°F (-19°C) | 0.2 in | Coldest, Driest |
| February | 6°F (-15°C) | 0.2 in | |
| March | 22°F (-6°C) | 0.4 in | |
| April | 42°F (5°C) | 0.9 in | |
| May | 55°F (13°C) | 2.1 in | |
| June | 65°F (19°C) | 3.5 in | |
| July | 71°F (22°C) | 5.4 in | Warmest, Wettest |
| August | 69°F (20°C) | 5.3 in | |
| September | 55°F (13°C) | 2.6 in | |
| October | 40°F (4°C) | 1.3 in | |
| November | 20°F (-7°C) | 0.5 in | |
| December | 5°F (-15°C) | 0.3 in |
Yilan has a seasonal temperature swing of 73°F / from -2°F in January to 71°F in July. Total annual precipitation is 22.8 inches, with July being the wettest month (5.4") and January the driest (0.2").