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Weather & Climate in Alatri, Italy
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Alatri 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 1,647 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 | 1,647 ft (502 m) |
| Area | 80.7 sq mi (208.9 km²) |
| Population Density | 128/sq mi |
| Coordinates | 41.7319°N, 13.3412°W |
| Timezone | Europe/Rome |
Precipitation & Snow
Air Quality
Earthquake History
1,021 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 | 67 km | 9 km |
| Aug 24, 2016 | 5 km WNW of Accumoli, Italy | M6.2 | 111 km | 4 km |
| Oct 31, 2002 | 4 km WSW of Larino, Italy | M5.9 | 127 km | 10 km |
| Nov 1, 2002 | 2 km ESE of Casacalenda, Italy | M5.8 | 127 km | 10 km |
| Jan 18, 2017 | 5 km ESE of Cittareale, Italy | M5.7 | 97 km | 7 km |
| Jan 18, 2017 | 4 km SE of Cittareale, Italy | M5.6 | 96 km | 10 km |
| Aug 24, 2016 | 5 km S of Castelsantangelo sul Nera, Italy | M5.6 | 124 km | 3 km |
| Oct 14, 1997 | 8 km NNW of Sellano, Italy | M5.5 | 142 km | 10 km |
| Apr 7, 2009 | 1 km SW of San Panfilo d'Ocre, Italy | M5.5 | 61 km | 15 km |
| Apr 9, 2009 | 5 km SE of Capitignano, Italy | M5.4 | 84 km | 15 km |
| Jan 18, 2017 | 4 km SW of Accumoli, Italy | M5.3 | 104 km | 10 km |
| Oct 12, 1997 | 2 km NW of Sellano, Italy | M5.3 | 135 km | 10 km |
| Apr 9, 2009 | 2 km ESE of Capitignano, Italy | M5.2 | 87 km | 3 km |
| Jan 18, 2017 | 3 km N of Montereale, Italy | M5.2 | 92 km | 7 km |
| Apr 6, 2009 | 5 km ENE of Pizzoli, Italy | M5.1 | 80 km | 9 km |
| Apr 13, 2009 | 5 km ESE of Capitignano, Italy | M5.0 | 86 km | 8 km |
| Apr 6, 2009 | 0 km WSW of Coppito, Italy | M4.9 | 71 km | 10 km |
| Oct 16, 1997 | 8 km ESE of Valtopina, Italy | M4.8 | 149 km | 10 km |
| Apr 6, 2009 | 5 km NW of Scoppito, Italy | M4.8 | 76 km | 5 km |
| Apr 7, 2009 | 1 km SW of L'Aquila, Italy | M4.8 | 68 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990-2025). Sorted by magnitude.
Tsunami History
4 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 | 136 km |
| 1906 | TYRRHENIAN SEA | Astronomical | 0.4 m | 350 | 136 km |
| 1805 | CAMPANIA | Earthquake | - | - | 97 km |
| 79 | BAY OF NAPLES | Eruption | - | 2,100 | 136 km |
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
5 volcanoes within 200 km. Closest: Colli Albani (53 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Colli Albani | Caldera | 949 m (3,114 ft) | Unknown | 53 km |
| Ischia | Complex | 789 m (2,589 ft) | 1302 | 121 km |
| Campi Flegrei | Caldera | 458 m (1,503 ft) | 1538 | 121 km |
| Vesuvius | Stratovolcano | 1,281 m (4,203 ft) | 1944 | 136 km |
| Vulsini | Caldera | 800 m (2,625 ft) | -104 | 151 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 43°F (6°C) | 2.6 in | |
| February | 38°F (3°C) | 2.8 in | Coldest |
| March | 42°F (6°C) | 2.5 in | |
| April | 47°F (8°C) | 3.2 in | |
| May | 55°F (13°C) | 2.8 in | |
| June | 62°F (17°C) | 2.3 in | |
| July | 79°F (26°C) | 2.1 in | Warmest, Driest |
| August | 68°F (20°C) | 2.2 in | |
| September | 62°F (16°C) | 3.5 in | |
| October | 54°F (12°C) | 4.5 in | |
| November | 45°F (7°C) | 4.7 in | Wettest |
| December | 39°F (4°C) | 3.5 in |
Alatri has a seasonal temperature swing of 41°F / from 38°F in February to 79°F in July. Total annual precipitation is 36.7 inches, with November being the wettest month (4.7") and July the driest (2.1").