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Weather & Climate in Morterone, Italy
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Morterone has a cool climate with an average annual temperature of 39°F (4°C). Winters average 24°F in January while summers reach 55°F in July. The area gets 287 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 72.7 inches (wetter than the 38-inch national average). The area receives 77.7 inches of snow annually, making winter weather a significant factor for residents. The city sits at an elevation of 3,510 feet.
Temperature
24°F Jan (-5°C)
55°F Jul (13°C)
| Annual Average | 38.6°F |
| 29% below US avg | |
| January Average | 24°F (-5°C) |
| July Average | 55°F (13°C) |
| Sunny Days | 287 days/yr |
Geography
| Elevation | 3,510 ft (1,070 m) |
| Area | 24.0 sq mi (62.3 km²) |
| Population Density | 0/sq mi |
| Coordinates | 45.8748°N, 9.4823°W |
| Timezone | Europe/Rome |
Precipitation & Snow
Air Quality
Earthquake History
959 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M5.0.
| Apr 11, 2003 | 1 km SSW of Carezzano Maggiore, Italy | M5.0 | 129 km | 4 km |
| Oct 29, 1995 | 0 km WNW of Adro, Italy | M4.9 | 46 km | 10 km |
| Aug 21, 2000 | 1 km WNW of Oviglio, Italy | M4.9 | 137 km | 10 km |
| Jan 25, 2012 | 1 km N of Poviglio, Italy | M4.9 | 140 km | 33 km |
| Apr 18, 2005 | 2 km WSW of Marsaglia, Italy | M4.9 | 130 km | 0 km |
| Dec 29, 1999 | 12 km N of Isolaccia, Italy | M4.8 | 103 km | 10 km |
| Nov 20, 1991 | 1 km WSW of Churwalden, Switzerland | M4.7 | 101 km | 10 km |
| Jul 18, 2001 | 3 km S of Masio, Italy | M4.7 | 143 km | 0 km |
| Mar 5, 2012 | 3 km NNW of Santo Stefano d'Aveto, Italy | M4.7 | 145 km | 9 km |
| Oct 3, 2012 | 1 km WSW of Lugagnano Val d'Arda, Italy | M4.5 | 120 km | 22 km |
| Oct 1, 2001 | 11 km WSW of Tubre, Italy | M4.5 | 104 km | 10 km |
| Apr 6, 2000 | 11 km WSW of Tubre, Italy | M4.5 | 104 km | 5 km |
| Feb 17, 1992 | 4 km NNE of Scharans, Switzerland | M4.5 | 98 km | 10 km |
| Apr 16, 2020 | 2 km SE of Marsaglia, Italy | M4.5 | 131 km | 10 km |
| Oct 15, 1996 | 2 km NE of Poviglio, Italy | M4.5 | 141 km | 10 km |
| Jan 4, 2009 | 3 km S of Wildhaus, Switzerland | M4.5 | 145 km | 3 km |
| Aug 28, 1994 | 6 km SSW of Muotathal, Switzerland | M4.5 | 129 km | 8 km |
| Jun 14, 1993 | 3 km S of Vogogna, Italy | M4.4 | 92 km | 10 km |
| May 9, 2007 | 2 km NNW of Campegine, Italy | M4.3 | 144 km | 27 km |
| May 6, 2003 | 7 km WSW of Linthal, Switzerland | M4.3 | 122 km | 6 km |
Source: USGS Earthquake Catalog (M2.5+, 1990-2025). Sorted by magnitude.
Tsunami History
3 tsunamis recorded within 500 km. Highest wave on record: 95.0 m (312 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1987 | VALTELLINA | Meteorological | 95.0 m | 27 | 87 km |
| 1601 | LAKE LUCERNE | Eruption + Earthquake | 4.0 m | 8 | 128 km |
| 1868 | LAKE GARDA | Earthquake | - | - | 96 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 24°F (-5°C) | 2.5 in | Coldest |
| February | 34°F (1°C) | 1.8 in | Driest |
| March | 39°F (4°C) | 2.8 in | |
| April | 44°F (7°C) | 3.9 in | |
| May | 52°F (11°C) | 5.1 in | |
| June | 59°F (15°C) | 4.8 in | |
| July | 55°F (13°C) | 4.1 in | |
| August | 63°F (17°C) | 4.7 in | Warmest |
| September | 56°F (14°C) | 5.1 in | Wettest |
| October | 48°F (9°C) | 4.9 in | |
| November | 39°F (4°C) | 3.4 in | |
| December | 34°F (1°C) | 2.2 in |
Morterone has a seasonal temperature swing of 39°F / from 24°F in January to 63°F in August. Total annual precipitation is 45.3 inches, with September being the wettest month (5.1") and February the driest (1.8").