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Entertainment — Ciechanów
Air quality now: sufficient station Ciechanów, ul. Kraszewskiego (1.3 km), measured 01:00 · source: GIOŚ (Polish Chief Inspectorate of Environmental Protection), unverified data
Climate — Ciechanów: monthly averages
| Month | Day (max) | Night (min) | Monthly precipitation |
|---|---|---|---|
| January | 11°C | -31°C | 44 mm |
| February | 11°C | -29°C | 36 mm |
| March | 21°C | -19°C | 37 mm |
| April | 28°C | -6°C | 38 mm |
| May | 30°C | -4°C | 69 mm |
| June | 33°C | 3°C | 70 mm |
| July | 34°C | 8°C | 80 mm |
| August | 36°C | 6°C | 62 mm |
| September | 34°C | -1°C | 50 mm |
| October | 23°C | -6°C | 52 mm |
| November | 17°C | -13°C | 46 mm |
| December | 11°C | -20°C | 46 mm |
Long-term model averages for an area of about 50 km — not a forecast; mountains are often cooler. Source: NASA POWER Project (CC BY 4.0) (2001–2025)