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Affoltern / Sonnenberg, Switzerland
Full City Profile
1,262
Population
255/sq mi density
1,795 ft
Elevation
547 meters
52°F
Avg Temperature
11°C
Affoltern / Sonnenberg experiences four distinct seasons with an average annual temperature of 52°F (11°C). Winters average 36°F in January while summers reach 68°F in July. The area gets 247 sunny days per year. Annual precipitation totals 52.5 inches. The area receives 19.0 inches of snow annually.
Temperature
36°F Jan (2°C)
68°F Jul (20°C)
| Annual Average | 51.6°F |
| 4% below US avg | |
| January Average | 36°F (2°C) |
| July Average | 68°F (20°C) |
| Sunny Days | 247 days/yr |
Geography
| Elevation | 1,795 ft (547 m) |
| Area | 5.0 sq mi (12.8 km²) |
| Population Density | 255/sq mi |
| Coordinates | 47.2806°N, 8.4601°W |
| Timezone | Europe/Zurich |
Precipitation & Snow
Air Quality
Tsunami History
2 tsunamis recorded within 500 km. Highest wave on record: 4.0 m (13 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1601 | LAKE LUCERNE | Eruption + Earthquake | 4.0 m | 8 | 54 km |
| 1996 | LAKE BRIENZ | Meteorological | 0.5 m | — | 72 km |
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 36°F (2°C) | 3.0 in | Driest |
| February | 35°F (2°C) | 3.4 in | |
| March | 42°F (5°C) | 3.1 in | |
| April | 47°F (8°C) | 3.6 in | |
| May | 56°F (13°C) | 4.3 in | |
| June | 61°F (16°C) | 5.4 in | Wettest |
| July | 68°F (20°C) | 5.2 in | Warmest |
| August | 64°F (18°C) | 5.0 in | |
| September | 58°F (14°C) | 3.7 in | |
| October | 49°F (10°C) | 3.7 in | |
| November | 40°F (4°C) | 3.9 in | |
| December | 34°F (1°C) | 3.6 in | Coldest |
Affoltern / Sonnenberg has a seasonal temperature swing of 33°F / from 34°F in December to 68°F in July. Total annual precipitation is 48.0 inches, with June being the wettest month (5.4") and January the driest (3.0").