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Weather & Climate in Passo di Treia, Italy
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Passo di Treia enjoys a temperate climate with an average annual temperature of 61°F (16°C). Winters average 46°F in January while summers reach 79°F in July. The area gets 314 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 31.4 inches. The area receives 1.1 inches of snow annually. The city sits at an elevation of 486 feet.
Temperature
46°F Jan (8°C)
79°F Jul (26°C)
| Annual Average | 60.5°F |
| 12% above US avg | |
| January Average | 46°F (8°C) |
| July Average | 79°F (26°C) |
| Sunny Days | 314 days/yr |
Geography
| Elevation | 486 ft (148 m) |
| Area | 47.3 sq mi (122.5 km²) |
| Population Density | 50/sq mi |
| Coordinates | 43.2865°N, 13.3325°W |
| Timezone | Europe/Rome |
Precipitation & Snow
Air Quality
Earthquake History
1,645 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 | 106 km | 9 km |
| Aug 24, 2016 | 5 km WNW of Accumoli, Italy | M6.2 | 64 km | 4 km |
| Sep 26, 1997 | 3 km SSE of Nocera Umbra, Italy | M6.0 | 48 km | 10 km |
| Jan 18, 2017 | 5 km ESE of Cittareale, Italy | M5.7 | 77 km | 7 km |
| Sep 26, 1997 | 6 km WSW of Serravalle di Chienti, Italy | M5.7 | 45 km | 10 km |
| Jan 18, 2017 | 4 km SE of Cittareale, Italy | M5.6 | 79 km | 10 km |
| Aug 24, 2016 | 5 km S of Castelsantangelo sul Nera, Italy | M5.6 | 52 km | 3 km |
| Apr 7, 2009 | 1 km SW of San Panfilo d'Ocre, Italy | M5.5 | 113 km | 15 km |
| Oct 6, 1997 | 6 km E of Valtopina, Italy | M5.5 | 49 km | 10 km |
| Oct 14, 1997 | 8 km NNW of Sellano, Italy | M5.5 | 51 km | 10 km |
| Apr 9, 2009 | 5 km SE of Capitignano, Italy | M5.4 | 89 km | 15 km |
| Jul 21, 2013 | 3 km ENE of Marcelli, Italy | M5.4 | 36 km | 8 km |
| Mar 26, 1998 | 1 km E of Esanatoglia, Italy | M5.4 | 30 km | 10 km |
| Jan 18, 2017 | 4 km SW of Accumoli, Italy | M5.3 | 70 km | 10 km |
| Oct 12, 1997 | 2 km NW of Sellano, Italy | M5.3 | 56 km | 10 km |
| Oct 3, 1997 | 3 km ENE of Valtopina, Italy | M5.3 | 50 km | 10 km |
| Apr 3, 1998 | 8 km E of Valfabbrica, Italy | M5.2 | 53 km | 10 km |
| Jan 18, 2017 | 3 km N of Montereale, Italy | M5.2 | 81 km | 7 km |
| Apr 9, 2009 | 2 km ESE of Capitignano, Italy | M5.2 | 86 km | 3 km |
| Apr 6, 2009 | 5 km ENE of Pizzoli, Italy | M5.1 | 93 km | 9 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 | 68 km |
| 1916 | CENTRAL ADRIATIC | Earthquake | — | 4 | 87 km |
| 1875 | ADRIATIC SEA | Earthquake | — | — | 126 km |
| 1672 | CENTRAL ADRIATIC | Earthquake | — | 1,500 | 94 km |
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
2 volcanoes within 200 km. Closest: Vulsini (137 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Vulsini | Caldera | 800 m (2,625 ft) | -104 | 137 km |
| Colli Albani | Caldera | 949 m (3,114 ft) | Unknown | 181 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 46°F (8°C) | 2.0 in | |
| February | 41°F (5°C) | 1.9 in | Coldest, Driest |
| March | 46°F (8°C) | 2.3 in | |
| April | 52°F (11°C) | 2.6 in | |
| May | 60°F (16°C) | 2.5 in | |
| June | 67°F (20°C) | 2.6 in | |
| July | 79°F (26°C) | 2.1 in | Warmest |
| August | 73°F (23°C) | 2.5 in | |
| September | 66°F (19°C) | 3.1 in | |
| October | 57°F (14°C) | 3.0 in | |
| November | 48°F (9°C) | 3.2 in | Wettest |
| December | 42°F (6°C) | 2.6 in |
Passo di Treia has a seasonal temperature swing of 38°F / from 41°F in February to 79°F in July. Total annual precipitation is 30.4 inches, with November being the wettest month (3.2") and February the driest (1.9").