Rainwater planning

Poznań rainfall profile for rainwater calculations

Monthly 1991–2020 precipitation normals for Poznań, annual total and an example yield from a 100 m² roof.

538.8 mmAnnual total
43.6 m³Example: 100 m² roof, 0.9 × 0.9
1991–2020IMGW normal period
JanFebMarAprMayJunJulAugSepOctNovDecYear
37.730.739.928.653.857.584.455.941.235.433.640.1538.8

Source: IMGW-PIB Climate Portal, 1991–2020 climate normals, OPAD_SUMA. Normals are long-term averages, not a forecast for a specific year.