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Weather & Climate in Siennica, Poland
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Siennica experiences four distinct seasons with an average annual temperature of 46°F (8°C). Winters average 27°F in January while summers reach 64°F in July. The area gets 300 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 20.0 inches (drier than the 38-inch national average). The area receives 3.1 inches of snow annually. The city sits at an elevation of 472 feet.
Temperature
27°F Jan (-3°C)
64°F Jul (18°C)
| Annual Average | 45.9°F |
| 15% below US avg | |
| January Average | 27°F (-3°C) |
| July Average | 64°F (18°C) |
| Sunny Days | 300 days/yr |
Geography
| Elevation | 472 ft (144 m) |
| Area | 5.1 sq mi (13.1 km²) |
| Population Density | 513/sq mi |
| Coordinates | 52.0916°N, 21.6192°W |
| Timezone | Europe/Warsaw |
Precipitation & Snow
Air Quality
Earthquake History
7 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M3.2.
| Aug 21, 1996 | 0 km S of Paw?ów, Poland | M3.2 | 131 km | 10 km |
| May 16, 1990 | 2 km NW of S?awno, Poland | M3.1 | 129 km | 10 km |
| May 10, 1990 | 4 km E of Po?wi?tne, Poland | M3.1 | 103 km | 10 km |
| Jan 3, 1990 | 2 km NE of Wieniawa, Poland | M2.9 | 96 km | 10 km |
| Mar 10, 1991 | 5 km WNW of Aleksandrów, Poland | M2.7 | 148 km | 10 km |
| May 10, 1991 | Poland | M2.7 | 105 km | 10 km |
| Apr 11, 1991 | 4 km ENE of Ruda Maleniecka, Poland | M2.6 | 138 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 27°F (-3°C) | 0.9 in | Coldest |
| February | 29°F (-2°C) | 0.9 in | Driest |
| March | 36°F (2°C) | 1.0 in | |
| April | 46°F (8°C) | 1.3 in | |
| May | 56°F (13°C) | 1.9 in | |
| June | 61°F (16°C) | 2.7 in | |
| July | 64°F (18°C) | 2.8 in | Warmest, Wettest |
| August | 64°F (18°C) | 2.4 in | |
| September | 55°F (13°C) | 1.9 in | |
| October | 46°F (8°C) | 1.4 in | |
| November | 37°F (3°C) | 1.4 in | |
| December | 30°F (-1°C) | 1.3 in |
Siennica has a seasonal temperature swing of 37°F / from 27°F in January to 64°F in July. Total annual precipitation is 20.0 inches, with July being the wettest month (2.8") and February the driest (0.9").