Rainwater planning

Białystok rainfall profile for rainwater calculations

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

610.2 mmAnnual total
49.4 m³Example: 100 m² roof, 0.9 × 0.9
1991–2020IMGW normal period
JanFebMarAprMayJunJulAugSepOctNovDecYear
33.831.434.637.769.165.486.569.456.047.239.239.9610.2

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