West Bengal experiences a highly seasonal rainfall pattern, concentrated between June and September. Global Historical Climatology Network daily Global Historical Climatology Network daily
While the annual average is a useful metric, the timing of the rain is vital for the rice paddies that dominate the landscape. average rainfall in west bengal
| Region | District Examples | Avg. Annual Rainfall | Character | | :--- | :--- | :--- | :--- | | | Darjeeling, Jalpaiguri | 3,500 mm+ | Extreme, Flooding | | Gangetic Plain | Kolkata, Nadia, Murshidabad | 1,600 – 1,900 mm | Moderate, Seasonal | | Coastal South | South 24 Parganas (Sundarbans) | 1,800 mm | Cyclonic, Saline | | Western Plateau | Purulia, Bankura | 1,100 mm | Scant, Drought-prone | West Bengal experiences a highly seasonal rainfall pattern,
In recent years, meteorologists have observed a shift in rainfall patterns. While the average annual total may remain similar, the distribution is changing. Annual Rainfall | Character | | :--- |
West Bengal receives an average annual rainfall of approximately . However, this figure masks dramatic geographical differences, ranging from over 3,500 mm in the northern Himalayan foothills to roughly 1,000–1,250 mm in the western plateau. Seasonal Distribution
