Winter in High Wycombe is typically cool and occasionally cold, with temperatures ranging from around freezing point to mild highs. January and February are the chilliest months, with average temperatures averaging just above or below 0°C. As spring arrives, temperatures gradually warm up, with March and April seeing a significant increase in daytime highs, often reaching into the late teens. Summer brings warmth and occasional heatwaves, with July being the warmest month on record, while August and September are slightly cooler but still pleasant. Autumn sees a return to milder conditions, with October and November experiencing temperatures similar to those of March and April.