Winters in Fishers are typically cold, with temperatures often dropping below freezing and averaging around 0°C in January. As the season progresses into February, temperatures remain chilly, averaging -3°C, before slowly warming up towards spring. Spring arrives in March, bringing mild temperatures that gradually rise throughout the month, averaging 9°C. Summer months from June to August are warm to hot, with average highs ranging from 24°C to 25°C, while autumn sees a return to milder temperatures, averaging around 16°C in October and 5°C in November. By December, temperatures drop back down to chilly averages of around 6°C.