Winters in Grand Island are harsh, with temperatures often plummeting below freezing, especially in February and December, when lows can drop as low as -35C. Spring arrives slowly, with March seeing a gradual warming trend, but still experiencing chilly mornings, while April brings more consistent temperatures around 10C. Summers are mild, with July and August being the warmest months, averaging around 24C, but also bringing occasional heatwaves above 30C. Autumn is similarly mild, with September and October enjoying pleasant temperatures in the mid-teens, before cooling off again as winter sets in. Overall, Grand Island's climate is characterized by moderate fluctuations, but with a general trend towards cooler winters and warmer summers.