Daventry's winters are typically cold and variable, with temperatures often dropping below freezing in January and February, but occasionally rising into the mid-teens. As spring approaches, temperatures gradually warm up, reaching averages of around 10-16°C by May and June. Summer months bring warmer days, with July being the warmest month on average, while August and September experience a slight cooling trend. Autumn is mild, with temperatures ranging from around 4-20°C in October and November before dropping again into winter. Overnight frosts are common throughout the year, but occasional warmer periods can occur even in mid-winter.