Winter months in Darwen are typically cool, with temperatures ranging from around freezing point to mild highs of up to 12°C in February. As spring approaches, temperatures gradually rise, reaching average highs of 15°C by March and continuing to warm through April, which sees highs of up to 18°C. Summer brings warmth, with July being the warmest month, averaging highs of 32°C, but even at this time, overnight lows can still dip into double digits. Autumn temperatures begin to drop, returning to winter-like conditions by November, although December's average high is a relatively mild 13°C. Overall, Darwen's temperature fluctuates significantly throughout the year, with no season lasting for an extended period without notable changes in temperature.