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Weather & Climate in Grotte di Castro, Italy
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Grotte di Castro enjoys a temperate climate with an average annual temperature of 60°F (15°C). Winters average 44°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 30.7 inches. The city sits at an elevation of 1,532 feet.
Temperature
44°F Jan (7°C)
79°F Jul (26°C)
| Annual Average | 59.5°F |
| 10% above US avg | |
| January Average | 44°F (7°C) |
| July Average | 79°F (26°C) |
| Sunny Days | 309 days/yr |
Geography
| Elevation | 1,532 ft (467 m) |
| Area | 54.1 sq mi (140.2 km²) |
| Population Density | 47/sq mi |
| Coordinates | 42.6757°N, 11.8691°W |
| Timezone | Europe/Rome |
Precipitation & Snow
Air Quality
Earthquake History
1,501 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 | 126 km | 9 km |
| Aug 24, 2016 | 5 km WNW of Accumoli, Italy | M6.2 | 108 km | 4 km |
| Sep 26, 1997 | 3 km SSE of Nocera Umbra, Italy | M6.0 | 89 km | 10 km |
| Sep 26, 1997 | 6 km WSW of Serravalle di Chienti, Italy | M5.7 | 92 km | 10 km |
| Jan 18, 2017 | 5 km ESE of Cittareale, Italy | M5.7 | 111 km | 7 km |
| Aug 24, 2016 | 5 km S of Castelsantangelo sul Nera, Italy | M5.6 | 107 km | 3 km |
| Jan 18, 2017 | 4 km SE of Cittareale, Italy | M5.6 | 109 km | 10 km |
| Oct 6, 1997 | 6 km E of Valtopina, Italy | M5.5 | 89 km | 10 km |
| Apr 7, 2009 | 1 km SW of San Panfilo d'Ocre, Italy | M5.5 | 138 km | 15 km |
| Oct 14, 1997 | 8 km NNW of Sellano, Italy | M5.5 | 89 km | 10 km |
| Mar 26, 1998 | 1 km E of Esanatoglia, Italy | M5.4 | 110 km | 10 km |
| Apr 9, 2009 | 5 km SE of Capitignano, Italy | M5.4 | 123 km | 15 km |
| Oct 3, 1997 | 3 km ENE of Valtopina, Italy | M5.3 | 88 km | 10 km |
| Oct 12, 1997 | 2 km NW of Sellano, Italy | M5.3 | 88 km | 10 km |
| Jan 18, 2017 | 4 km SW of Accumoli, Italy | M5.3 | 110 km | 10 km |
| Apr 9, 2009 | 2 km ESE of Capitignano, Italy | M5.2 | 121 km | 3 km |
| Apr 3, 1998 | 8 km E of Valfabbrica, Italy | M5.2 | 87 km | 10 km |
| Jan 18, 2017 | 3 km N of Montereale, Italy | M5.2 | 114 km | 7 km |
| Apr 6, 2009 | 5 km ENE of Pizzoli, Italy | M5.1 | 125 km | 9 km |
| Apr 13, 2009 | 5 km ESE of Capitignano, Italy | M5.0 | 124 km | 8 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 |
| 1846 | LIVORNO | Earthquake | — | 56 | 131 km |
| 1846 | TUSCANY | Earthquake | — | — | 144 km |
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
2 volcanoes within 200 km. Closest: Vulsini (10 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Vulsini | Caldera | 800 m (2,625 ft) | -104 | 10 km |
| Colli Albani | Caldera | 949 m (3,114 ft) | Unknown | 126 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 44°F (7°C) | 1.5 in | |
| February | 41°F (5°C) | 1.5 in | Coldest |
| March | 46°F (8°C) | 1.5 in | |
| April | 51°F (10°C) | 1.7 in | |
| May | 59°F (15°C) | 1.7 in | |
| June | 66°F (19°C) | 1.1 in | |
| July | 79°F (26°C) | 0.8 in | Warmest, Driest |
| August | 72°F (22°C) | 1.2 in | |
| September | 65°F (18°C) | 1.8 in | |
| October | 57°F (14°C) | 2.2 in | |
| November | 48°F (9°C) | 2.3 in | Wettest |
| December | 42°F (6°C) | 1.8 in |
Grotte di Castro has a seasonal temperature swing of 37°F / from 41°F in February to 79°F in July. Total annual precipitation is 19.0 inches, with November being the wettest month (2.3") and July the driest (0.8").