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Weather & Climate in Siziano, Italy
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Siziano enjoys a temperate climate with an average annual temperature of 57°F (14°C). Winters average 40°F in January while summers reach 75°F in July. The area gets 288 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 53.1 inches (wetter than the 38-inch national average). The area receives 1.2 inches of snow annually. The city sits at an elevation of 305 feet.
Temperature
40°F Jan (4°C)
75°F Jul (24°C)
| Annual Average | 57.2°F |
| 6% above US avg | |
| January Average | 40°F (4°C) |
| July Average | 75°F (24°C) |
| Sunny Days | 288 days/yr |
Geography
| Elevation | 305 ft (93 m) |
| Area | 7.4 sq mi (19.2 km²) |
| Population Density | 706/sq mi |
| Coordinates | 45.3161°N, 9.2036°W |
| Timezone | Europe/Rome |
Precipitation & Snow
Air Quality
Earthquake History
1,449 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M5.5.
| May 29, 2012 | 2 km NE of San Possidonio, Italy | M5.5 | 149 km | 7 km |
| Oct 15, 1996 | 2 km N of Correggio, Italy | M5.4 | 137 km | 10 km |
| Jun 21, 2013 | 6 km WSW of Minucciano, Italy | M5.2 | 149 km | 5 km |
| May 29, 2012 | 2 km W of San Possidonio, Italy | M5.1 | 146 km | 10 km |
| Jun 3, 2012 | 3 km ENE of Novi di Modena, Italy | M5.1 | 144 km | 9 km |
| Jan 27, 2012 | 4 km SE of Berceto, Italy | M5.0 | 114 km | 60 km |
| Apr 11, 2003 | 1 km SSW of Carezzano Maggiore, Italy | M5.0 | 63 km | 4 km |
| Jan 25, 2012 | 1 km N of Poviglio, Italy | M4.9 | 117 km | 33 km |
| Aug 21, 2000 | 1 km WNW of Oviglio, Italy | M4.9 | 76 km | 10 km |
| Apr 18, 2005 | 2 km WSW of Marsaglia, Italy | M4.9 | 69 km | 0 km |
| Oct 29, 1995 | 0 km WNW of Adro, Italy | M4.9 | 68 km | 10 km |
| May 29, 2012 | 2 km W of San Possidonio, Italy | M4.8 | 146 km | 11 km |
| May 29, 2012 | 3 km ENE of Novi di Modena, Italy | M4.8 | 144 km | 3 km |
| Feb 21, 1998 | 2 km ENE of Campagnola Emilia, Italy | M4.8 | 135 km | 10 km |
| Mar 5, 2012 | 3 km NNW of Santo Stefano d'Aveto, Italy | M4.7 | 85 km | 9 km |
| May 29, 2012 | 2 km NW of San Possidonio, Italy | M4.7 | 146 km | 5 km |
| Oct 15, 1996 | 3 km WSW of Correggio, Italy | M4.7 | 136 km | 10 km |
| Jul 18, 2001 | 3 km S of Masio, Italy | M4.7 | 83 km | 0 km |
| Oct 10, 1995 | 2 km SSE of Pallerone, Italy | M4.7 | 141 km | 10 km |
| Aug 13, 2019 | 4 km SW of Stazione Valmozzola, Italy | M4.6 | 101 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tsunami History
2 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 | 148 km |
| 1868 | LAKE GARDA | Earthquake | — | — | 124 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 40°F (4°C) | 2.5 in | |
| February | 39°F (4°C) | 1.9 in | |
| March | 47°F (8°C) | 2.3 in | |
| April | 54°F (12°C) | 2.8 in | |
| May | 62°F (17°C) | 3.2 in | |
| June | 69°F (20°C) | 2.5 in | |
| July | 75°F (24°C) | 1.7 in | Warmest, Driest |
| August | 72°F (22°C) | 2.8 in | |
| September | 66°F (19°C) | 3.0 in | |
| October | 55°F (13°C) | 4.3 in | Wettest |
| November | 44°F (7°C) | 2.9 in | |
| December | 36°F (2°C) | 2.2 in | Coldest |
Siziano has a seasonal temperature swing of 38°F / from 36°F in December to 75°F in July. Total annual precipitation is 32.1 inches, with October being the wettest month (4.3") and July the driest (1.7").