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Castellanza, Italy

Full City Profile

2.0 /5.0
C Fair
14,223 Population 2,619/sq mi density
709 ft Elevation 216 meters
57°F Avg Temperature 14°C
C
Overall
2.0 / 5.0
Fair overall score based on economy, affordability, safety and education
C
Economy
2.0 / 5.0
$26,746 median income, 10.8% unemployment
Castellanza 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. Annual precipitation totals 53.1 inches. The area receives 1.2 inches of snow annually.

Temperature

40°F Jan (4°C) 75°F Jul (24°C)
Annual Average57.2°F
6% above US avg
January Average40°F (4°C)
July Average75°F (24°C)
Sunny Days288 days/yr

Geography

Elevation709 ft (216 m)
Area5.4 sq mi (14.1 km²)
Population Density2,619/sq mi
Coordinates45.6108°N, 8.8962°W
TimezoneEurope/Rome

Precipitation & Snow

Annual Rainfall 53.1"
40% above US avg
Snowfall 1.2"
Wettest Month (May) 5.00"
Driest Month (Dec) 2.28"

Air Quality

Earthquake History

1,101 earthquakes (M2.5+) within 150 km since 1990. Strongest: M5.0. Most recent: M4.1 on Jul 21, 2025.

Apr 11, 2003 1 km SSW of Carezzano Maggiore, Italy M5.0 91 km
Apr 18, 2005 2 km WSW of Marsaglia, Italy M4.9 107 km
Oct 29, 1995 0 km WNW of Adro, Italy M4.9 83 km
Aug 21, 2000 1 km WNW of Oviglio, Italy M4.9 89 km
Nov 20, 1991 1 km WSW of Churwalden, Switzerland M4.7 138 km
Jul 18, 2001 3 km S of Masio, Italy M4.7 94 km
Mar 5, 2012 3 km NNW of Santo Stefano d'Aveto, Italy M4.7 123 km
Aug 13, 2019 4 km SW of Stazione Valmozzola, Italy M4.6 141 km
Apr 16, 2020 2 km SE of Marsaglia, Italy M4.5 109 km
Feb 17, 1992 4 km NNE of Scharans, Switzerland M4.5 135 km
Oct 3, 2012 1 km WSW of Lugagnano Val d'Arda, Italy M4.5 114 km
Apr 19, 2009 1 km ENE of Bandito, Italy M4.5 128 km
Aug 28, 1994 6 km SSW of Muotathal, Switzerland M4.5 146 km
Jun 14, 1993 3 km S of Vogogna, Italy M4.4 62 km
Jul 25, 2011 5 km NW of Cantalupa, Italy M4.4 144 km
Nov 21, 1995 1 km SW of Collegno, Italy M4.4 121 km
Sep 22, 2022 3 km SW of Bargagli, Italy M4.4 132 km
Feb 11, 1990 northern Italy M4.3 121 km
Mar 31, 1996 7 km NNW of Bionaz, Italy M4.3 122 km
Apr 29, 2003 2 km SSW of Varen, Switzerland M4.3 126 km
Source: USGS (M2.5+, 1990–2025)

Tsunami History

4 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 27 141 km
1601 LAKE LUCERNE Eruption + Earthquake 4.0 m 8 136 km
1996 LAKE BRIENZ Meteorological 0.5 m — 143 km
1868 LAKE GARDA Earthquake — — 141 km
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.

Monthly Weather

Month Avg Temperature Precipitation Summary
January 40°F (4°C) 2.8 in
February 39°F (4°C) 2.6 in
March 46°F (8°C) 3.4 in
April 52°F (11°C) 3.9 in
May 61°F (16°C) 5.0 in Wettest
June 68°F (20°C) 3.8 in
July 75°F (24°C) 2.8 in Warmest
August 72°F (22°C) 3.9 in
September 65°F (18°C) 3.9 in
October 54°F (12°C) 4.8 in
November 43°F (6°C) 3.8 in
December 36°F (2°C) 2.3 in Coldest, Driest

Castellanza has a seasonal temperature swing of 38°F / from 36°F in December to 75°F in July. Total annual precipitation is 42.9 inches, with May being the wettest month (5.0") and December the driest (2.3").

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