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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. 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 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) |
| Sunny Days | 303 days/yr |
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°W |
| 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").