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Weather & Climate in Grignano Polesine, Italy
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Grignano Polesine enjoys a temperate climate with an average annual temperature of 59°F (15°C). Winters average 42°F in January while summers reach 78°F in July. The area gets 291 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 36.1 inches. The area receives 2.5 inches of snow annually. The city sits at an elevation of 13 feet.
Temperature
42°F Jan (6°C)
78°F Jul (26°C)
| Annual Average | 58.9°F |
| 9% above US avg | |
| January Average | 42°F (6°C) |
| July Average | 78°F (26°C) |
| Sunny Days | 291 days/yr |
Geography
| Elevation | 13 ft (4 m) |
| Area | 3.6 sq mi (9.2 km²) |
| Population Density | 764/sq mi |
| Coordinates | 45.0435°N, 11.7468°W |
| Timezone | Europe/Rome |
Precipitation & Snow
Air Quality
Earthquake History
1,742 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M6.0.
| May 20, 2012 | 4 km NNE of Massa Finalese, Italy | M6.0 | 44 km | 6 km |
| May 29, 2012 | 1 km ENE of Medolla, Italy | M5.8 | 56 km | 10 km |
| May 29, 2012 | 2 km NE of San Possidonio, Italy | M5.5 | 61 km | 7 km |
| Oct 15, 1996 | 2 km N of Correggio, Italy | M5.4 | 81 km | 10 km |
| Sep 14, 2003 | 3 km E of Monterenzio, Italy | M5.3 | 83 km | 10 km |
| May 10, 2000 | 7 km SE of Granarolo, Italy | M5.1 | 84 km | 10 km |
| May 29, 2012 | 2 km W of San Possidonio, Italy | M5.1 | 65 km | 10 km |
| Sep 18, 2023 | 7 km SE of Marradi, Italy | M5.1 | 114 km | 10 km |
| Jun 3, 2012 | 3 km ENE of Novi di Modena, Italy | M5.1 | 65 km | 9 km |
| Jan 27, 2012 | 4 km SE of Berceto, Italy | M5.0 | 149 km | 60 km |
| May 20, 2012 | 1 km SSW of Vigarano Mainarda, Italy | M5.0 | 31 km | 5 km |
| Nov 2, 2002 | 4 km N of Sant'Alberto, Italy | M5.0 | 61 km | 10 km |
| Jan 25, 2012 | 1 km N of Poviglio, Italy | M4.9 | 97 km | 33 km |
| May 20, 2012 | 2 km ENE of Medolla, Italy | M4.9 | 55 km | 10 km |
| Jan 25, 2013 | 3 km ENE of Castiglione di Garfagnana, Italy | M4.9 | 141 km | 16 km |
| Jul 17, 2011 | 0 km W of Sermide, Italy | M4.9 | 36 km | 6 km |
| Feb 21, 1998 | 2 km ENE of Campagnola Emilia, Italy | M4.8 | 78 km | 10 km |
| May 8, 2000 | 3 km NE of Faenza, Italy | M4.8 | 82 km | 10 km |
| May 29, 2012 | 3 km ENE of Novi di Modena, Italy | M4.8 | 65 km | 3 km |
| Mar 1, 2008 | 6 km NNW of Galliano, Italy | M4.8 | 116 km | 4 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tsunami History
5 tsunamis recorded within 500 km. Highest wave on record: 235.0 m (771 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1963 | VAJONT DAM, VAJONT RIVER | Meteorological | 235.0 m | 2,000 | 143 km |
| 1875 | ADRIATIC SEA | Earthquake | — | — | 107 km |
| 1868 | LAKE GARDA | Earthquake | — | — | 110 km |
| 1672 | CENTRAL ADRIATIC | Earthquake | — | 1,500 | 140 km |
| 1624 | DELTA OF THE PO | Earthquake | — | — | 50 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 42°F (6°C) | 1.9 in | |
| February | 41°F (5°C) | 1.5 in | Driest |
| March | 48°F (9°C) | 1.9 in | |
| April | 56°F (13°C) | 2.2 in | |
| May | 65°F (18°C) | 2.5 in | |
| June | 71°F (22°C) | 2.5 in | |
| July | 78°F (26°C) | 1.8 in | Warmest |
| August | 75°F (24°C) | 2.7 in | Wettest |
| September | 68°F (20°C) | 2.4 in | |
| October | 58°F (14°C) | 2.7 in | |
| November | 46°F (8°C) | 2.6 in | |
| December | 39°F (4°C) | 2.1 in | Coldest |
Grignano Polesine has a seasonal temperature swing of 39°F / from 39°F in December to 78°F in July. Total annual precipitation is 26.7 inches, with August being the wettest month (2.7") and February the driest (1.5").