New Westminster experiences a moderate climate with distinct seasonal variations. Winters are cool and occasionally cold, with temperatures often below freezing from December to February, but occasional warmer days bring temperatures into double digits. Spring arrives in March and April, bringing mild temperatures that gradually warm up, with May marking the beginning of warmer summers. Summer months, June to August, are warm to hot, with temperatures sometimes reaching over 30 degrees Celsius, while September brings a cooling trend back towards autumnal temperatures. Autumn is generally cool and wet, with temperatures dropping steadily from October to December.