Wellingborough'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 arrives in March, temperatures gradually warm up, reaching average highs of around 7°C by this point. Summer months bring warmer conditions, with June and July averaging high temperatures around 18-20°C, although occasional heatwaves can push them above 25°C. Autumn sees a return to more changeable weather, with October often feeling cool and November seeing some frosty mornings. By December, the temperature is back in the range of winter, but not as cold as January's lows.