Weather & Climate in Hamm (Sieg), Germany
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Hamm (Sieg) experiences four distinct seasons with an average annual temperature of 48°F (9°C). Winters average 34°F in January while summers reach 63°F in July. Annual precipitation totals 40.2 inches. The area receives 6.9 inches of snow annually. The city sits at an elevation of 699 feet.
Temperature
34°F Jan (1°C)
63°F Jul (17°C)
| Annual Average | 47.7°F |
| 12% below US avg | |
| January Average | 34°F (1°C) |
| July Average | 63°F (17°C) |
Geography
| Elevation | 699 ft (213 m) |
| Area | 25.6 sq mi (66.4 km²) |
| Population Density | 133/sq mi |
| Coordinates | 50.7653°N, 7.6776°E |
| Timezone | Europe/Berlin |
Precipitation & Snow
Air Quality
Earthquake History
524 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M5.4.
| Apr 13, 1992 | 1 km W of Kessenich, Belgium | M5.4 | 139 km | 21 km |
| Jun 23, 2001 | 2 km ENE of Niel-bij-As, Belgium | M4.8 | 146 km | 10 km |
| Jul 22, 2002 | 2 km ENE of Haanrade, Netherlands | M4.8 | 111 km | 17 km |
| Aug 3, 2007 | 2 km SE of Wehr, Germany | M4.4 | 51 km | 10 km |
| Jan 20, 2000 | 4 km NW of Rheinbach, Germany | M4.3 | 56 km | 10 km |
| Nov 29, 1997 | 6 km SE of Burgschwalbach, Germany | M4.3 | 67 km | 10 km |
| Apr 14, 1992 | 2 km SSE of Vaals, Netherlands | M4.3 | 115 km | 10 km |
| May 22, 2004 | 2 km ENE of Nickenich, Germany | M4.2 | 45 km | 10 km |
| Jul 24, 2009 | 2 km NW of Kamp-Lintfort, Germany | M4.1 | 117 km | 5 km |
| Jun 23, 2001 | 1 km SW of Ulestraten, Netherlands | M4.0 | 135 km | 10 km |
| Jul 26, 2000 | 6 km ESE of Holzhausen an der Haide, Germany | M4.0 | 67 km | 10 km |
| Mar 17, 2002 | 1 km SE of Stolberg, Germany | M4.0 | 101 km | 10 km |
| Feb 14, 2011 | 4 km NE of Nassau, Germany | M3.9 | 49 km | 12 km |
| Nov 29, 1997 | 7 km N of Taunusstein, Germany | M3.9 | 69 km | 10 km |
| Jul 23, 1996 | 5 km NW of Stoumont, Belgium | M3.9 | 141 km | 10 km |
| Jun 3, 1993 | 0 km NW of Kessenich, Belgium | M3.8 | 138 km | 10 km |
| Nov 18, 1990 | 1 km SSW of Kaub, Germany | M3.8 | 77 km | 28 km |
| Apr 13, 1992 | 3 km WSW of Koningsbosch, Netherlands | M3.8 | 128 km | 10 km |
| Mar 7, 2001 | Belgium | M3.8 | 128 km | 10 km |
| Mar 7, 2001 | 0 km WSW of Wijlre, Netherlands | M3.8 | 126 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990-2025). Sorted by magnitude.
Nearby Volcanoes
1 volcano within 200 km. Closest: West Eifel Volcanic Field (88 km).
| Name | Type | Elevation | Last Eruption | Distance |
| West Eifel Volcanic Field | Maar(s) | 600 m (1,969 ft) | -8300 | 88 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 34°F (1°C) | 3.9 in | Coldest |
| February | 34°F (1°C) | 3.0 in | |
| March | 40°F (5°C) | 3.6 in | |
| April | 46°F (8°C) | 2.6 in | Driest |
| May | 55°F (13°C) | 2.9 in | |
| June | 60°F (15°C) | 3.3 in | |
| July | 63°F (17°C) | 3.5 in | Warmest |
| August | 62°F (17°C) | 2.8 in | |
| September | 56°F (13°C) | 3.2 in | |
| October | 48°F (9°C) | 3.3 in | |
| November | 40°F (4°C) | 3.7 in | |
| December | 36°F (2°C) | 4.4 in | Wettest |
Hamm (Sieg) has a seasonal temperature swing of 30°F / from 34°F in January to 63°F in July. Total annual precipitation is 40.2 inches, with December being the wettest month (4.4") and April the driest (2.6").