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Weather & Climate in Colle San Magno, Italy
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Colle San Magno enjoys a temperate climate with an average annual temperature of 59°F (15°C). Winters average 43°F in January while summers reach 79°F in July. The area gets 309 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 43.0 inches. The area receives 2.1 inches of snow annually. The city sits at an elevation of 1,772 feet.
Temperature
43°F Jan (6°C)
79°F Jul (26°C)
| Annual Average | 58.6°F |
| 9% above US avg | |
| January Average | 43°F (6°C) |
| July Average | 79°F (26°C) |
| Sunny Days | 309 days/yr |
Geography
| Elevation | 1,772 ft (540 m) |
| Area | 45.3 sq mi (117.3 km²) |
| Population Density | 11/sq mi |
| Coordinates | 41.5502°N, 13.6949°W |
| Timezone | Europe/Rome |
Precipitation & Snow
Air Quality
Earthquake History
691 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 | 92 km | 9 km |
| Aug 24, 2016 | 5 km WNW of Accumoli, Italy | M6.2 | 137 km | 4 km |
| Oct 31, 2002 | 4 km WSW of Larino, Italy | M5.9 | 101 km | 10 km |
| Nov 1, 2002 | 2 km ESE of Casacalenda, Italy | M5.8 | 100 km | 10 km |
| Jan 18, 2017 | 5 km ESE of Cittareale, Italy | M5.7 | 123 km | 7 km |
| Jan 18, 2017 | 4 km SE of Cittareale, Italy | M5.6 | 122 km | 10 km |
| Apr 7, 2009 | 1 km SW of San Panfilo d'Ocre, Italy | M5.5 | 83 km | 15 km |
| Apr 9, 2009 | 5 km SE of Capitignano, Italy | M5.4 | 108 km | 15 km |
| Jan 18, 2017 | 4 km SW of Accumoli, Italy | M5.3 | 130 km | 10 km |
| Jan 18, 2017 | 3 km N of Montereale, Italy | M5.2 | 118 km | 7 km |
| Apr 9, 2009 | 2 km ESE of Capitignano, Italy | M5.2 | 111 km | 3 km |
| Apr 6, 2009 | 5 km ENE of Pizzoli, Italy | M5.1 | 104 km | 9 km |
| Apr 13, 2009 | 5 km ESE of Capitignano, Italy | M5.0 | 110 km | 8 km |
| Apr 6, 2009 | 0 km WSW of Coppito, Italy | M4.9 | 95 km | 10 km |
| Aug 15, 1998 | 3 km NE of Cittaducale, Italy | M4.8 | 112 km | 10 km |
| Aug 26, 2016 | 2 km S of Amatrice, Italy | M4.8 | 121 km | 11 km |
| Apr 7, 2009 | 1 km SW of L'Aquila, Italy | M4.8 | 92 km | 10 km |
| Feb 16, 2013 | 3 km W of Sora, Italy | M4.8 | 21 km | 11 km |
| Apr 6, 2009 | 5 km NW of Scoppito, Italy | M4.8 | 103 km | 5 km |
| Jan 18, 2017 | 4 km WNW of Campotosto, Italy | M4.7 | 119 km | 10 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 | 102 km |
| 1906 | TYRRHENIAN SEA | Astronomical | 0.4 m | 350 | 102 km |
| 1805 | CAMPANIA | Earthquake | — | — | 65 km |
| 1627 | GARGANO PENINSULA | Earthquake | — | 5,000 | 139 km |
| 79 | BAY OF NAPLES | Eruption | — | 2,100 | 102 km |
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
5 volcanoes within 200 km. Closest: Colli Albani (85 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Colli Albani | Caldera | 949 m (3,114 ft) | Unknown | 85 km |
| Campi Flegrei | Caldera | 458 m (1,503 ft) | 1538 | 89 km |
| Ischia | Complex | 789 m (2,589 ft) | 1302 | 93 km |
| Vesuvius | Stratovolcano | 1,281 m (4,203 ft) | 1944 | 102 km |
| Vulsini | Caldera | 800 m (2,625 ft) | -104 | 187 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 43°F (6°C) | 3.0 in | |
| February | 41°F (5°C) | 2.9 in | Coldest |
| March | 45°F (7°C) | 2.6 in | |
| April | 50°F (10°C) | 3.1 in | |
| May | 58°F (15°C) | 2.4 in | |
| June | 65°F (18°C) | 1.9 in | |
| July | 79°F (26°C) | 1.7 in | Warmest, Driest |
| August | 71°F (22°C) | 2.1 in | |
| September | 64°F (18°C) | 3.2 in | |
| October | 56°F (14°C) | 4.2 in | |
| November | 48°F (9°C) | 4.8 in | Wettest |
| December | 42°F (5°C) | 3.7 in |
Colle San Magno has a seasonal temperature swing of 38°F / from 41°F in February to 79°F in July. Total annual precipitation is 35.6 inches, with November being the wettest month (4.8") and July the driest (1.7").