Winters in Bournville are typically mild but can be quite chilly, with temperatures often below freezing. As the seasons transition towards spring, temperatures gradually rise, with March and April being relatively warm months. Summer brings warm days, with July being the warmest month, but evenings can still be cool. Autumn is generally cooler than summer, with September and October experiencing a noticeable drop in temperature. The coldest winter months are January and December, while May and June are usually the warmest of spring and early summer.