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Weather & Climate in Susa, Italy
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Susa has a cool climate with an average annual temperature of 34°F (1°C). Winters average 15°F in January while summers reach 53°F in July. The area gets 303 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 53.7 inches (wetter than the 38-inch national average). The area receives 190.2 inches of snow annually, making winter weather a significant factor for residents. The city sits at an elevation of 1,650 feet.
Temperature
15°F Jan (-9°C)
53°F Jul (12°C)
| Annual Average | 33.8°F |
| 37% below US avg | |
| January Average | 15°F (-9°C) |
| July Average | 53°F (12°C) |
| Sunny Days | 303 days/yr |
Geography
| Elevation | 1,650 ft (503 m) |
| Area | 4.5 sq mi (11.6 km²) |
| Population Density | 1,255/sq mi |
| Coordinates | 45.1368°N, 7.0581°W |
| Timezone | Europe/Rome |
Precipitation & Snow
Air Quality
Earthquake History
2,277 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M5.0.
| Apr 11, 2003 | 1 km SSW of Carezzano Maggiore, Italy | M5.0 | 149 km | 4 km |
| Aug 21, 2000 | 1 km WNW of Oviglio, Italy | M4.9 | 116 km | 10 km |
| Apr 7, 2014 | 7 km SE of Guillestre, France | M4.8 | 65 km | 8 km |
| Oct 31, 1997 | 12 km SE of Seyne-les-Alpes, France | M4.8 | 106 km | 10 km |
| Jul 18, 2001 | 3 km S of Masio, Italy | M4.7 | 111 km | 0 km |
| Feb 11, 1991 | 5 km ESE of Briançon, France | M4.6 | 41 km | 14 km |
| Jan 20, 1994 | 1 km NE of Melle, Italy | M4.6 | 67 km | 10 km |
| Jul 17, 1993 | 0 km NNW of Calice Ligure, Italy | M4.5 | 142 km | 5 km |
| Mar 12, 2022 | 3 km S of Faverges, France | M4.5 | 88 km | 3 km |
| Dec 14, 1994 | 7 km SSE of Amancy, France | M4.5 | 112 km | 10 km |
| Oct 3, 2012 | 2 km N of Melle, Italy | M4.5 | 65 km | 10 km |
| Jul 15, 1996 | 3 km NE of Chilly, France | M4.5 | 129 km | 5 km |
| Apr 19, 2009 | 1 km ENE of Bandito, Italy | M4.5 | 77 km | 40 km |
| Mar 2, 2012 | 8 km NNW of Jausiers, France | M4.5 | 77 km | 10 km |
| Jun 14, 1993 | 3 km S of Vogogna, Italy | M4.4 | 135 km | 10 km |
| Jul 25, 2011 | 5 km NW of Cantalupa, Italy | M4.4 | 25 km | 25 km |
| Nov 21, 1995 | 1 km SW of Collegno, Italy | M4.4 | 39 km | 22 km |
| Jul 17, 1993 | 0 km NNE of Calice Ligure, Italy | M4.4 | 142 km | 5 km |
| Jul 23, 1996 | 4 km W of Choisy, France | M4.4 | 126 km | 10 km |
| Jun 30, 2010 | 3 km NW of Saint-Martin-de-Belleville, France | M4.3 | 55 km | 2 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tsunami History
3 tsunamis recorded within 500 km. Highest wave on record: 3.0 m (10 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1968 | LIGURIA-COTE D'AZUR | Earthquake | 3.0 m | — | 139 km |
| 1564 | LIGURIA-COTE D'AZUR | Eruption + Earthquake | — | 650 | 126 km |
| 563 | LAKE GENEVA | Meteorological | — | — | 137 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 15°F (-9°C) | 3.6 in | Coldest |
| February | 31°F (-1°C) | 3.4 in | |
| March | 35°F (2°C) | 3.3 in | |
| April | 39°F (4°C) | 3.9 in | |
| May | 47°F (9°C) | 4.2 in | |
| June | 54°F (12°C) | 3.4 in | |
| July | 53°F (12°C) | 2.4 in | Driest |
| August | 60°F (15°C) | 3.0 in | Warmest |
| September | 53°F (12°C) | 3.3 in | |
| October | 45°F (7°C) | 4.4 in | Wettest |
| November | 36°F (2°C) | 4.1 in | |
| December | 32°F (-0°C) | 3.7 in |
Susa has a seasonal temperature swing of 44°F / from 15°F in January to 60°F in August. Total annual precipitation is 42.5 inches, with October being the wettest month (4.4") and July the driest (2.4").