Hitachi's winters are quite chilly, with temperatures often below freezing in January and December, averaging around 2°C and 5°C respectively. Spring arrives in March, bringing warmer temperatures that steadily increase throughout the season, reaching an average of 12°C by April. Summer is warm to hot, with July and August being the hottest months, averaging highs above 30°C. Autumn brings a welcome cool-down, with temperatures dropping back down into single digits in November.