Saint Helens experiences a mild oceanic climate with temperatures gradually warming up throughout the year. Winters are cool and unpredictable, with January being the coldest month, averaging around 2°C, while February is slightly warmer, averaging 4°C. As spring approaches, temperatures rise steadily, with March and April averaging around 6°C and 5°C respectively. Summer brings warm to hot temperatures, peaking in July with an average of 17°C, but August and September are relatively cooler, still averaging above 15°C. Autumn is mild, with October being the mildest month, averaging 11°C, before temperatures drop again in November and December.