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Weather & Climate in Mergo, Italy
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Mergo enjoys a temperate climate with an average annual temperature of 59°F (15°C). Winters average 43°F in January while summers reach 78°F in July. The area gets 296 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 36.9 inches. The area receives 11.8 inches of snow annually. The city sits at an elevation of 1,207 feet.
Temperature
43°F Jan (6°C)
78°F Jul (26°C)
| Annual Average | 58.5°F |
| 8% above US avg | |
| January Average | 43°F (6°C) |
| July Average | 78°F (26°C) |
| Sunny Days | 296 days/yr |
Geography
| Elevation | 1,207 ft (368 m) |
| Area | 16.2 sq mi (41.9 km²) |
| Population Density | 24/sq mi |
| Coordinates | 43.4735°N, 13.0351°W |
| Timezone | Europe/Rome |
Precipitation & Snow
Air Quality
Earthquake History
1,859 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 | 129 km | 9 km |
| Aug 24, 2016 | 5 km WNW of Accumoli, Italy | M6.2 | 84 km | 4 km |
| Sep 26, 1997 | 3 km SSE of Nocera Umbra, Italy | M6.0 | 47 km | 10 km |
| Sep 26, 1997 | 6 km WSW of Serravalle di Chienti, Italy | M5.7 | 49 km | 10 km |
| Jan 18, 2017 | 5 km ESE of Cittareale, Italy | M5.7 | 98 km | 7 km |
| Aug 24, 2016 | 5 km S of Castelsantangelo sul Nera, Italy | M5.6 | 71 km | 3 km |
| Jan 18, 2017 | 4 km SE of Cittareale, Italy | M5.6 | 100 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 | 58 km | 10 km |
| Oct 6, 1997 | 6 km E of Valtopina, Italy | M5.5 | 50 km | 10 km |
| Jul 21, 2013 | 3 km ENE of Marcelli, Italy | M5.4 | 51 km | 8 km |
| Mar 26, 1998 | 1 km E of Esanatoglia, Italy | M5.4 | 25 km | 10 km |
| Apr 9, 2009 | 5 km SE of Capitignano, Italy | M5.4 | 113 km | 15 km |
| Oct 3, 1997 | 3 km ENE of Valtopina, Italy | M5.3 | 48 km | 10 km |
| Jan 18, 2017 | 4 km SW of Accumoli, Italy | M5.3 | 92 km | 10 km |
| Oct 12, 1997 | 2 km NW of Sellano, Italy | M5.3 | 65 km | 10 km |
| Jan 18, 2017 | 3 km N of Montereale, Italy | M5.2 | 103 km | 7 km |
| Apr 9, 2009 | 2 km ESE of Capitignano, Italy | M5.2 | 110 km | 3 km |
| Apr 3, 1998 | 8 km E of Valfabbrica, Italy | M5.2 | 44 km | 10 km |
| Sep 18, 2023 | 7 km SE of Marradi, Italy | M5.1 | 125 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tsunami History
4 tsunamis recorded within 500 km.
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1930 | CENTRAL ADRIATIC | Earthquake | — | 18 | 59 km |
| 1916 | CENTRAL ADRIATIC | Earthquake | — | 4 | 63 km |
| 1875 | ADRIATIC SEA | Earthquake | — | — | 96 km |
| 1672 | CENTRAL ADRIATIC | Earthquake | — | 1,500 | 63 km |
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
2 volcanoes within 200 km. Closest: Vulsini (132 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Vulsini | Caldera | 800 m (2,625 ft) | -104 | 132 km |
| Colli Albani | Caldera | 949 m (3,114 ft) | Unknown | 196 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 43°F (6°C) | 2.2 in | Driest |
| February | 40°F (5°C) | 2.3 in | Coldest |
| March | 45°F (7°C) | 2.6 in | |
| April | 51°F (11°C) | 2.9 in | |
| May | 60°F (15°C) | 2.9 in | |
| June | 67°F (19°C) | 2.8 in | |
| July | 78°F (26°C) | 2.2 in | Warmest |
| August | 72°F (22°C) | 2.8 in | |
| September | 65°F (18°C) | 3.4 in | |
| October | 56°F (14°C) | 3.4 in | |
| November | 47°F (8°C) | 3.9 in | Wettest |
| December | 42°F (5°C) | 2.9 in |
Mergo has a seasonal temperature swing of 38°F / from 40°F in February to 78°F in July. Total annual precipitation is 34.3 inches, with November being the wettest month (3.9") and January the driest (2.2").