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Weather & Climate in Colli del Tronto, Italy
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Colli del Tronto enjoys a temperate climate with an average annual temperature of 58°F (15°C). Winters average 43°F in January while summers reach 77°F in July. The area gets 299 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 41.1 inches. The area receives 12.1 inches of snow annually. The city sits at an elevation of 551 feet.
Temperature
43°F Jan (6°C)
77°F Jul (25°C)
| Annual Average | 58.4°F |
| 8% above US avg | |
| January Average | 43°F (6°C) |
| July Average | 77°F (25°C) |
| Sunny Days | 299 days/yr |
Geography
| Elevation | 551 ft (168 m) |
| Area | 6.6 sq mi (17.1 km²) |
| Population Density | 193/sq mi |
| Coordinates | 42.8769°N, 13.7475°W |
| Timezone | Europe/Rome |
Precipitation & Snow
Air Quality
Earthquake History
1,631 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M6.3.
| Apr 6, 2009 | 3 km SE of Sassa, Italy | M6.3 | 69 km | 9 km |
| Aug 24, 2016 | 5 km WNW of Accumoli, Italy | M6.2 | 49 km | 4 km |
| Sep 26, 1997 | 3 km SSE of Nocera Umbra, Italy | M6.0 | 80 km | 10 km |
| Jan 18, 2017 | 5 km ESE of Cittareale, Italy | M5.7 | 52 km | 7 km |
| Sep 26, 1997 | 6 km WSW of Serravalle di Chienti, Italy | M5.7 | 73 km | 10 km |
| Aug 24, 2016 | 5 km S of Castelsantangelo sul Nera, Italy | M5.6 | 49 km | 3 km |
| Jan 18, 2017 | 4 km SE of Cittareale, Italy | M5.6 | 56 km | 10 km |
| Apr 7, 2009 | 1 km SW of San Panfilo d'Ocre, Italy | M5.5 | 71 km | 15 km |
| Oct 14, 1997 | 8 km NNW of Sellano, Italy | M5.5 | 70 km | 10 km |
| Mar 29, 2003 | 51 km W of Komiža, Croatia | M5.5 | 142 km | 10 km |
| Oct 6, 1997 | 6 km E of Valtopina, Italy | M5.5 | 77 km | 10 km |
| Jul 21, 2013 | 3 km ENE of Marcelli, Italy | M5.4 | 70 km | 8 km |
| Mar 26, 1998 | 1 km E of Esanatoglia, Italy | M5.4 | 76 km | 10 km |
| Apr 9, 2009 | 5 km SE of Capitignano, Italy | M5.4 | 55 km | 15 km |
| Oct 12, 1997 | 2 km NW of Sellano, Italy | M5.3 | 69 km | 10 km |
| Oct 3, 1997 | 3 km ENE of Valtopina, Italy | M5.3 | 81 km | 10 km |
| Jan 18, 2017 | 4 km SW of Accumoli, Italy | M5.3 | 50 km | 10 km |
| Jan 18, 2017 | 3 km N of Montereale, Italy | M5.2 | 54 km | 7 km |
| Apr 3, 1998 | 8 km E of Valfabbrica, Italy | M5.2 | 91 km | 10 km |
| Apr 9, 2009 | 2 km ESE of Capitignano, Italy | M5.2 | 53 km | 3 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tsunami History
2 tsunamis recorded within 500 km.
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1930 | CENTRAL ADRIATIC | Earthquake | — | 18 | 115 km |
| 1916 | CENTRAL ADRIATIC | Earthquake | — | 4 | 142 km |
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
2 volcanoes within 200 km. Closest: Vulsini (152 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Vulsini | Caldera | 800 m (2,625 ft) | -104 | 152 km |
| Colli Albani | Caldera | 949 m (3,114 ft) | Unknown | 154 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 43°F (6°C) | 1.9 in | |
| February | 43°F (6°C) | 1.8 in | Coldest, Driest |
| March | 48°F (9°C) | 2.1 in | |
| April | 53°F (12°C) | 2.4 in | |
| May | 62°F (16°C) | 1.9 in | |
| June | 69°F (20°C) | 2.5 in | |
| July | 77°F (25°C) | 1.9 in | Warmest |
| August | 73°F (23°C) | 2.4 in | |
| September | 67°F (19°C) | 3.0 in | |
| October | 59°F (15°C) | 3.0 in | Wettest |
| November | 50°F (10°C) | 3.0 in | |
| December | 44°F (7°C) | 2.5 in |
Colli del Tronto has a seasonal temperature swing of 34°F / from 43°F in February to 77°F in July. Total annual precipitation is 28.3 inches, with October being the wettest month (3.0") and February the driest (1.8").