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Weather & Climate in Borgo San Siro, Italy
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Borgo San Siro enjoys a temperate climate with an average annual temperature of 58°F (15°C). Winters average 40°F in January while summers reach 77°F in July. The area gets 286 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 35.5 inches. The area receives 4.9 inches of snow annually. The city sits at an elevation of 322 feet.
Temperature
40°F Jan (4°C)
77°F Jul (25°C)
| Annual Average | 58.4°F |
| 8% above US avg | |
| January Average | 40°F (4°C) |
| July Average | 77°F (25°C) |
| Sunny Days | 286 days/yr |
Geography
| Elevation | 322 ft (98 m) |
| Area | 18.0 sq mi (46.6 km²) |
| Population Density | 40/sq mi |
| Coordinates | 45.2351°N, 8.9133°W |
| Timezone | Europe/Rome |
Precipitation & Snow
Air Quality
Earthquake History
1,543 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 | 49 km | 4 km |
| Jan 27, 2012 | 4 km SE of Berceto, Italy | M5.0 | 122 km | 60 km |
| Aug 21, 2000 | 1 km WNW of Oviglio, Italy | M4.9 | 54 km | 10 km |
| Oct 29, 1995 | 0 km WNW of Adro, Italy | M4.9 | 92 km | 10 km |
| Apr 18, 2005 | 2 km WSW of Marsaglia, Italy | M4.9 | 68 km | 0 km |
| Jan 25, 2012 | 1 km N of Poviglio, Italy | M4.9 | 135 km | 33 km |
| Oct 10, 1995 | 2 km SSE of Pallerone, Italy | M4.7 | 146 km | 10 km |
| Jul 18, 2001 | 3 km S of Masio, Italy | M4.7 | 60 km | 0 km |
| Mar 5, 2012 | 3 km NNW of Santo Stefano d'Aveto, Italy | M4.7 | 85 km | 9 km |
| Jan 20, 1994 | 1 km NE of Melle, Italy | M4.6 | 145 km | 10 km |
| Aug 13, 2019 | 4 km SW of Stazione Valmozzola, Italy | M4.6 | 108 km | 10 km |
| Apr 19, 2009 | 1 km ENE of Bandito, Italy | M4.5 | 101 km | 40 km |
| Apr 16, 2020 | 2 km SE of Marsaglia, Italy | M4.5 | 71 km | 10 km |
| Oct 3, 2012 | 1 km WSW of Lugagnano Val d'Arda, Italy | M4.5 | 84 km | 22 km |
| Oct 15, 1996 | 2 km NE of Poviglio, Italy | M4.5 | 136 km | 10 km |
| Jun 21, 2013 | 2 km S of Comano, Italy | M4.5 | 144 km | 10 km |
| Jul 17, 1993 | 0 km NNW of Calice Ligure, Italy | M4.5 | 124 km | 5 km |
| Oct 3, 2012 | 2 km N of Melle, Italy | M4.5 | 145 km | 10 km |
| Jul 17, 1993 | 0 km NNE of Calice Ligure, Italy | M4.4 | 124 km | 5 km |
| Jul 25, 2011 | 5 km NW of Cantalupa, Italy | M4.4 | 131 km | 25 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tsunami History
2 tsunamis recorded within 500 km. Highest wave on record: 3.0 m (10 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1968 | LIGURIA-COTE D'AZUR | Earthquake | 3.0 m | — | 147 km |
| 1868 | LAKE GARDA | Earthquake | — | — | 149 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 40°F (4°C) | 2.3 in | |
| February | 38°F (4°C) | 1.9 in | |
| March | 47°F (8°C) | 2.5 in | |
| April | 53°F (12°C) | 3.0 in | |
| May | 62°F (16°C) | 3.5 in | |
| June | 68°F (20°C) | 2.5 in | |
| July | 77°F (25°C) | 1.7 in | Warmest, Driest |
| August | 72°F (22°C) | 2.7 in | |
| September | 65°F (18°C) | 2.9 in | |
| October | 55°F (13°C) | 4.1 in | Wettest |
| November | 44°F (6°C) | 3.0 in | |
| December | 36°F (2°C) | 2.0 in | Coldest |
Borgo San Siro has a seasonal temperature swing of 41°F / from 36°F in December to 77°F in July. Total annual precipitation is 32.0 inches, with October being the wettest month (4.1") and July the driest (1.7").