Frosinone's climate is characterized by mild winters and warm summers. Winter months, from January to March, are cool with temperatures often below freezing, but gradually warming up as the season progresses. Spring arrives in April, bringing average highs of 27°C, marking a significant temperature increase. Summer months, June to August, are hot, with July being the warmest month averaging 29°C, while September brings a gentle decline in temperature. Autumn, from October to December, is characterized by cooler temperatures, with November and December often experiencing nighttime frosts.