Grotte di Castro, Italy

Full City Profile

1.9 /5.0

D Poor

2,560 Population 47/sq mi density

1,532 ft Elevation 467 meters

60°F Avg Temperature 15°C

Overall

1.9 / 5.0

Below average overall score based on economy, affordability, safety and education

Economy

1.9 / 5.0

$18,999 median income, 12.0% unemployment

Grotte di Castro enjoys a temperate climate with an average annual temperature of 60°F (16°C). Winters average 44°F in January while summers reach 79°F in July. The area gets 309 sunny days per year. Annual precipitation totals 30.7 inches. The area receives 0.7 inches of snow annually.

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

Annual Rainfall 30.7"

19% below US avg

Snowfall 0.7"

Wettest Month (Nov) 2.32"

Driest Month (Jul) 0.75"

Air Quality

Earthquake History

1,501 earthquakes (M2.5+) within 150 km since 1990. Strongest: M6.3. Most recent: M2.7 on May 8, 2025.

Apr 6, 2009	3 km SE of Sassa, Italy	M6.3	126 km
Aug 24, 2016	5 km WNW of Accumoli, Italy	M6.2	108 km
Sep 26, 1997	3 km SSE of Nocera Umbra, Italy	M6.0	89 km
Sep 26, 1997	6 km WSW of Serravalle di Chienti, Italy	M5.7	92 km
Jan 18, 2017	5 km ESE of Cittareale, Italy	M5.7	111 km
Aug 24, 2016	5 km S of Castelsantangelo sul Nera, Italy	M5.6	107 km
Jan 18, 2017	4 km SE of Cittareale, Italy	M5.6	109 km
Oct 6, 1997	6 km E of Valtopina, Italy	M5.5	89 km
Apr 7, 2009	1 km SW of San Panfilo d'Ocre, Italy	M5.5	138 km
Oct 14, 1997	8 km NNW of Sellano, Italy	M5.5	89 km
Mar 26, 1998	1 km E of Esanatoglia, Italy	M5.4	110 km
Apr 9, 2009	5 km SE of Capitignano, Italy	M5.4	123 km
Oct 3, 1997	3 km ENE of Valtopina, Italy	M5.3	88 km
Oct 12, 1997	2 km NW of Sellano, Italy	M5.3	88 km
Jan 18, 2017	4 km SW of Accumoli, Italy	M5.3	110 km
Apr 9, 2009	2 km ESE of Capitignano, Italy	M5.2	121 km
Apr 3, 1998	8 km E of Valfabbrica, Italy	M5.2	87 km
Jan 18, 2017	3 km N of Montereale, Italy	M5.2	114 km
Apr 6, 2009	5 km ENE of Pizzoli, Italy	M5.1	125 km
Apr 13, 2009	5 km ESE of Capitignano, Italy	M5.0	124 km

Source: USGS (M2.5+, 1990–2025)

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. Sorted by wave height.

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). Sorted by distance.

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").

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