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Weather & Climate in Colle Isarco, Italy
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Colle Isarco has a cool climate with an average annual temperature of 40°F (5°C). Winters average 23°F in January while summers reach 58°F in July. The area gets 278 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 40.9 inches. The area receives 123.6 inches of snow annually, making winter weather a significant factor for residents. The city sits at an elevation of 3,527 feet.
Temperature
23°F Jan (-5°C)
58°F Jul (14°C)
| Annual Average | 40.2°F |
| 26% below US avg | |
| January Average | 23°F (-5°C) |
| July Average | 58°F (14°C) |
| Sunny Days | 278 days/yr |
Geography
| Elevation | 3,527 ft (1,075 m) |
| Area | 18.4 sq mi (47.7 km²) |
| Population Density | 56/sq mi |
| Coordinates | 46.9386°N, 11.4425°W |
| Timezone | Europe/Rome |
Precipitation & Snow
Air Quality
Earthquake History
659 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.8.
| Dec 29, 1999 | 12 km N of Isolaccia, Italy | M4.8 | 94 km | 10 km |
| Jul 17, 2001 | 3 km NNE of Rifiano, Italy | M4.7 | 29 km | 10 km |
| Mar 31, 1994 | 2 km W of Warth, Austria | M4.7 | 104 km | 14 km |
| Feb 14, 2002 | 4 km SSW of Moggio di Sotto, Italy | M4.7 | 146 km | 10 km |
| Nov 20, 1991 | 1 km WSW of Churwalden, Switzerland | M4.7 | 147 km | 10 km |
| Jun 5, 1997 | 2 km ESE of Namlos, Austria | M4.6 | 73 km | 5 km |
| Oct 1, 2001 | 11 km WSW of Tubre, Italy | M4.5 | 93 km | 10 km |
| May 28, 1998 | 3 km WSW of Osoppo, Italy | M4.5 | 145 km | 10 km |
| Apr 6, 2000 | 11 km WSW of Tubre, Italy | M4.5 | 93 km | 5 km |
| Jun 9, 2012 | 5 km NE of Lamosano, Italy | M4.5 | 112 km | 7 km |
| Jan 30, 2015 | 4 km W of Moggio di Sotto, Italy | M4.4 | 142 km | 6 km |
| Feb 22, 2021 | 2 km SSE of Brentonico, Italy | M4.3 | 132 km | 11 km |
| Aug 29, 2004 | 1 km S of Enemonzo-Quinis, Italy | M4.3 | 125 km | 11 km |
| Oct 2, 1993 | 4 km WNW of Bordano, Italy | M4.3 | 141 km | 10 km |
| Dec 31, 1999 | 11 km WSW of Tubre, Italy | M4.3 | 93 km | 10 km |
| Apr 20, 1994 | 5 km NE of Claut, Italy | M4.3 | 112 km | 10 km |
| Jul 13, 2020 | 9 km SSW of Forni di Sotto, Italy | M4.3 | 113 km | 10 km |
| Mar 27, 2024 | 6 km ENE of Tramonti di Sopra, Italy | M4.3 | 129 km | 10 km |
| Oct 24, 1994 | 3 km ESE of Piazza, Italy | M4.3 | 121 km | 18 km |
| Jun 3, 1998 | 5 km SSE of Malcesine, Italy | M4.2 | 143 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tsunami History
3 tsunamis recorded within 500 km. Highest wave on record: 235.0 m (771 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1963 | VAJONT DAM, VAJONT RIVER | Meteorological | 235.0 m | 2,000 | 101 km |
| 1987 | VALTELLINA | Meteorological | 95.0 m | 27 | 105 km |
| 1868 | LAKE GARDA | Earthquake | — | — | 149 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 23°F (-5°C) | 1.5 in | Coldest |
| February | 26°F (-3°C) | 1.4 in | Driest |
| March | 31°F (-0°C) | 2.0 in | |
| April | 36°F (2°C) | 2.5 in | |
| May | 45°F (7°C) | 3.4 in | |
| June | 51°F (11°C) | 4.6 in | |
| July | 58°F (14°C) | 4.8 in | Warmest, Wettest |
| August | 55°F (13°C) | 4.4 in | |
| September | 50°F (10°C) | 3.3 in | |
| October | 42°F (6°C) | 2.8 in | |
| November | 32°F (-0°C) | 2.5 in | |
| December | 27°F (-3°C) | 1.8 in |
Colle Isarco has a seasonal temperature swing of 35°F / from 23°F in January to 58°F in July. Total annual precipitation is 35.0 inches, with July being the wettest month (4.8") and February the driest (1.4").