Weather & Climate in Collelongo, Italy
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Collelongo enjoys a temperate climate with an average annual temperature of 56°F (13°C). Winters average 40°F in January while summers reach 76°F in July. Annual precipitation totals 32.1 inches. The area receives 13.5 inches of snow annually. The city sits at an elevation of 3,002 feet.
Temperature
40°F Jan (4°C)
76°F Jul (25°C)
| Annual Average | 55.6°F |
| 3% above US avg | |
| January Average | 40°F (4°C) |
| July Average | 76°F (25°C) |
Geography
| Elevation | 3,002 ft (915 m) |
| Area | 22.6 sq mi (58.5 km²) |
| Population Density | 58/sq mi |
| Coordinates | 41.8866°N, 13.5838°E |
| Timezone | Europe/Rome |
Precipitation & Snow
Air Quality
Earthquake History
1,182 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 | 54 km | 9 km |
| Aug 24, 2016 | 5 km WNW of Accumoli, Italy | M6.2 | 99 km | 4 km |
| Sep 26, 1997 | 3 km SSE of Nocera Umbra, Italy | M6.0 | 147 km | 10 km |
| Oct 31, 2002 | 4 km WSW of Larino, Italy | M5.9 | 107 km | 10 km |
| Nov 1, 2002 | 2 km ESE of Casacalenda, Italy | M5.8 | 109 km | 10 km |
| Jan 18, 2017 | 5 km ESE of Cittareale, Italy | M5.7 | 85 km | 7 km |
| Sep 26, 1997 | 6 km WSW of Serravalle di Chienti, Italy | M5.7 | 142 km | 10 km |
| Aug 24, 2016 | 5 km S of Castelsantangelo sul Nera, Italy | M5.6 | 112 km | 3 km |
| Jan 18, 2017 | 4 km SE of Cittareale, Italy | M5.6 | 84 km | 10 km |
| Oct 6, 1997 | 6 km E of Valtopina, Italy | M5.5 | 143 km | 10 km |
| Apr 7, 2009 | 1 km SW of San Panfilo d'Ocre, Italy | M5.5 | 44 km | 15 km |
| Oct 14, 1997 | 8 km NNW of Sellano, Italy | M5.5 | 132 km | 10 km |
| Apr 9, 2009 | 5 km SE of Capitignano, Italy | M5.4 | 69 km | 15 km |
| Jan 18, 2017 | 4 km SW of Accumoli, Italy | M5.3 | 91 km | 10 km |
| Oct 12, 1997 | 2 km NW of Sellano, Italy | M5.3 | 126 km | 10 km |
| Oct 3, 1997 | 3 km ENE of Valtopina, Italy | M5.3 | 147 km | 10 km |
| Apr 9, 2009 | 2 km ESE of Capitignano, Italy | M5.2 | 73 km | 3 km |
| Jan 18, 2017 | 3 km N of Montereale, Italy | M5.2 | 80 km | 7 km |
| Apr 6, 2009 | 5 km ENE of Pizzoli, Italy | M5.1 | 65 km | 9 km |
| Apr 13, 2009 | 5 km ESE of Capitignano, Italy | M5.0 | 71 km | 8 km |
Source: USGS Earthquake Catalog (M2.5+, 1990-2025). Sorted by magnitude.
Tsunami History
5 tsunamis recorded within 500 km. Highest wave on record: 5.0 m (16 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1631 | BAY OF NAPLES | Eruption | 5.0 m | 4,000 | 138 km |
| 1906 | TYRRHENIAN SEA | Astronomical | 0.4 m | 350 | 138 km |
| 1805 | CAMPANIA | Earthquake | - | - | 85 km |
| 1627 | GARGANO PENINSULA | Earthquake | - | 5,000 | 147 km |
| 79 | BAY OF NAPLES | Eruption | - | 2,100 | 138 km |
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
5 volcanoes within 200 km. Closest: Colli Albani (75 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Colli Albani | Caldera | 949 m (3,114 ft) | Unknown | 75 km |
| Campi Flegrei | Caldera | 458 m (1,503 ft) | 1538 | 127 km |
| Ischia | Complex | 789 m (2,589 ft) | 1302 | 131 km |
| Vesuvius | Stratovolcano | 1,281 m (4,203 ft) | 1944 | 138 km |
| Vulsini | Caldera | 800 m (2,625 ft) | -104 | 158 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 40°F (4°C) | 2.1 in | Driest |
| February | 36°F (2°C) | 2.4 in | Coldest |
| March | 41°F (5°C) | 2.2 in | |
| April | 46°F (8°C) | 2.8 in | |
| May | 55°F (13°C) | 2.7 in | |
| June | 61°F (16°C) | 2.4 in | |
| July | 76°F (25°C) | 2.3 in | Warmest |
| August | 67°F (20°C) | 2.4 in | |
| September | 60°F (16°C) | 3.4 in | |
| October | 52°F (11°C) | 3.9 in | Wettest |
| November | 43°F (6°C) | 3.9 in | |
| December | 38°F (3°C) | 2.8 in |
Collelongo has a seasonal temperature swing of 40°F / from 36°F in February to 76°F in July. Total annual precipitation is 33.2 inches, with October being the wettest month (3.9") and January the driest (2.1").