Cheltenham's winters are typically chilly and unpredictable, with temperatures ranging from near-freezing to mild over the course of a month. As spring approaches, temperatures gradually warm up, reaching average highs around 10-16°C by May and June. Summer months bring pleasant warmth, with July often being the warmest month, but also experiencing occasional cooler spells. Autumn is generally mild, with temperatures dropping slightly as winter returns, although still relatively mild compared to other parts of the UK. The coldest periods typically occur between December and February, while the warmer months are from June to September.