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Weather & Climate in Chiavenna, Italy
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Chiavenna experiences four distinct seasons with an average annual temperature of 47°F (8°C). Winters average 32°F in January while summers reach 63°F in July. The area gets 249 sunny days per year, above the national average. Annual precipitation totals 47.9 inches (wetter than the 38-inch national average). The area receives 7.2 inches of snow annually. The city sits at an elevation of 1,093 feet.
Temperature
32°F Jan (0°C)
63°F Jul (17°C)
| Annual Average | 46.5°F |
| 14% below US avg | |
| January Average | 32°F (0°C) |
| July Average | 63°F (17°C) |
| Sunny Days | 249 days/yr |
Geography
| Elevation | 1,093 ft (333 m) |
| Area | 7.4 sq mi (19.1 km²) |
| Population Density | 980/sq mi |
| Coordinates | 46.3206°N, 9.3982°W |
| Timezone | Europe/Rome |
Precipitation & Snow
Air Quality
Earthquake History
672 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.9.
| Oct 29, 1995 | 0 km WNW of Adro, Italy | M4.9 | 89 km | 10 km |
| Dec 29, 1999 | 12 km N of Isolaccia, Italy | M4.8 | 76 km | 10 km |
| Nov 20, 1991 | 1 km WSW of Churwalden, Switzerland | M4.7 | 52 km | 10 km |
| Jul 17, 2001 | 3 km NNE of Rifiano, Italy | M4.7 | 145 km | 10 km |
| Mar 31, 1994 | 2 km W of Warth, Austria | M4.7 | 118 km | 14 km |
| Apr 6, 2000 | 11 km WSW of Tubre, Italy | M4.5 | 78 km | 5 km |
| Feb 17, 1992 | 4 km NNE of Scharans, Switzerland | M4.5 | 49 km | 10 km |
| Jan 4, 2009 | 3 km S of Wildhaus, Switzerland | M4.5 | 95 km | 3 km |
| Oct 1, 2001 | 11 km WSW of Tubre, Italy | M4.5 | 78 km | 10 km |
| Aug 28, 1994 | 6 km SSW of Muotathal, Switzerland | M4.5 | 83 km | 8 km |
| May 8, 1992 | 2 km WSW of Sennwald, Switzerland | M4.4 | 104 km | 5 km |
| Nov 22, 1997 | 4 km SSW of Krummenau, Switzerland | M4.4 | 100 km | 10 km |
| Jun 14, 1993 | 3 km S of Vogogna, Italy | M4.4 | 93 km | 10 km |
| May 8, 1992 | 0 km NNW of Sennwald, Switzerland | M4.4 | 105 km | 5 km |
| May 15, 1992 | 1 km W of Sennwald, Switzerland | M4.4 | 105 km | 5 km |
| Apr 29, 2003 | 2 km SSW of Varen, Switzerland | M4.3 | 138 km | 8 km |
| Dec 31, 1999 | 11 km WSW of Tubre, Italy | M4.3 | 78 km | 10 km |
| May 6, 2003 | 7 km WSW of Linthal, Switzerland | M4.3 | 75 km | 6 km |
| Feb 22, 2021 | 2 km SSE of Brentonico, Italy | M4.3 | 134 km | 11 km |
| Nov 16, 1995 | 1 km ENE of Einsiedeln, Switzerland | M4.3 | 103 km | 5 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tsunami History
4 tsunamis recorded within 500 km. Highest wave on record: 95.0 m (312 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1987 | VALTELLINA | Meteorological | 95.0 m | 27 | 73 km |
| 1601 | LAKE LUCERNE | Eruption + Earthquake | 4.0 m | 8 | 87 km |
| 1996 | LAKE BRIENZ | Meteorological | 0.5 m | — | 118 km |
| 1868 | LAKE GARDA | Earthquake | — | — | 122 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 32°F (0°C) | 2.7 in | Coldest |
| February | 34°F (1°C) | 2.0 in | Driest |
| March | 39°F (4°C) | 2.8 in | |
| April | 44°F (7°C) | 3.9 in | |
| May | 52°F (11°C) | 5.1 in | |
| June | 58°F (15°C) | 5.3 in | Wettest |
| July | 63°F (17°C) | 4.8 in | Warmest |
| August | 62°F (17°C) | 5.2 in | |
| September | 56°F (13°C) | 5.3 in | |
| October | 48°F (9°C) | 4.8 in | |
| November | 38°F (3°C) | 3.5 in | |
| December | 33°F (1°C) | 2.5 in |
Chiavenna has a seasonal temperature swing of 31°F / from 32°F in January to 63°F in July. Total annual precipitation is 47.9 inches, with June being the wettest month (5.3") and February the driest (2.0").