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Weather & Climate in Frosinone, Italy
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Frosinone 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 955 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 | 955 ft (291 m) |
| Area | 18.6 sq mi (48.2 km²) |
| Population Density | 2,393/sq mi |
| Coordinates | 41.6398°N, 13.3411°W |
| Timezone | Europe/Rome |
Precipitation & Snow
Air Quality
Earthquake History
868 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 | 77 km | 9 km |
| Aug 24, 2016 | 5 km WNW of Accumoli, Italy | M6.2 | 121 km | 4 km |
| Oct 31, 2002 | 4 km WSW of Larino, Italy | M5.9 | 128 km | 10 km |
| Nov 1, 2002 | 2 km ESE of Casacalenda, Italy | M5.8 | 128 km | 10 km |
| Jan 18, 2017 | 5 km ESE of Cittareale, Italy | M5.7 | 107 km | 7 km |
| Aug 24, 2016 | 5 km S of Castelsantangelo sul Nera, Italy | M5.6 | 135 km | 3 km |
| Jan 18, 2017 | 4 km SE of Cittareale, Italy | M5.6 | 106 km | 10 km |
| Apr 7, 2009 | 1 km SW of San Panfilo d'Ocre, Italy | M5.5 | 71 km | 15 km |
| Apr 9, 2009 | 5 km SE of Capitignano, Italy | M5.4 | 94 km | 15 km |
| Jan 18, 2017 | 4 km SW of Accumoli, Italy | M5.3 | 114 km | 10 km |
| Oct 12, 1997 | 2 km NW of Sellano, Italy | M5.3 | 145 km | 10 km |
| Apr 9, 2009 | 2 km ESE of Capitignano, Italy | M5.2 | 97 km | 3 km |
| Jan 18, 2017 | 3 km N of Montereale, Italy | M5.2 | 102 km | 7 km |
| Apr 6, 2009 | 5 km ENE of Pizzoli, Italy | M5.1 | 90 km | 9 km |
| Apr 13, 2009 | 5 km ESE of Capitignano, Italy | M5.0 | 96 km | 8 km |
| Apr 6, 2009 | 0 km WSW of Coppito, Italy | M4.9 | 81 km | 10 km |
| Aug 26, 2016 | 2 km S of Amatrice, Italy | M4.8 | 107 km | 11 km |
| Apr 6, 2009 | 5 km NW of Scoppito, Italy | M4.8 | 86 km | 5 km |
| Nov 9, 1997 | 2 km NE of Sellano, Italy | M4.8 | 144 km | 10 km |
| Feb 16, 2013 | 3 km W of Sora, Italy | M4.8 | 21 km | 11 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 | 129 km |
| 1906 | TYRRHENIAN SEA | Astronomical | 0.4 m | 350 | 129 km |
| 1805 | CAMPANIA | Earthquake | - | - | 95 km |
| 79 | BAY OF NAPLES | Eruption | - | 2,100 | 129 km |
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
5 volcanoes within 200 km. Closest: Colli Albani (54 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Colli Albani | Caldera | 949 m (3,114 ft) | Unknown | 54 km |
| Ischia | Complex | 789 m (2,589 ft) | 1302 | 111 km |
| Campi Flegrei | Caldera | 458 m (1,503 ft) | 1538 | 112 km |
| Vesuvius | Stratovolcano | 1,281 m (4,203 ft) | 1944 | 129 km |
| Vulsini | Caldera | 800 m (2,625 ft) | -104 | 158 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 43°F (6°C) | 4.0 in | Coldest |
| February | 45°F (7°C) | 3.8 in | |
| March | 49°F (9°C) | 3.2 in | |
| April | 54°F (12°C) | 3.9 in | |
| May | 62°F (17°C) | 2.6 in | |
| June | 69°F (21°C) | 1.7 in | |
| July | 79°F (26°C) | 1.5 in | Warmest, Driest |
| August | 75°F (24°C) | 2.2 in | |
| September | 68°F (20°C) | 3.7 in | |
| October | 60°F (16°C) | 5.3 in | |
| November | 51°F (10°C) | 6.6 in | Wettest |
| December | 45°F (7°C) | 5.4 in |
Frosinone has a seasonal temperature swing of 36°F / from 43°F in January to 79°F in July. Total annual precipitation is 43.8 inches, with November being the wettest month (6.6") and July the driest (1.5").