Winters in Barnet are typically mild and unpredictable, with temperatures often fluctuating between freezing and double-digit highs. January and February are the coldest months, but even then, temperatures rarely drop below 0°C for an extended period. As spring approaches, temperatures gradually rise, with March marking a significant increase to average highs around 7°C. Summer brings warmth, with June and July often seeing temperatures in the mid-20s, while autumn is generally mild, with September and October experiencing similar temperature ranges to spring.