Winters in Hanover Park are harsh and cold, with temperatures often plummeting below freezing and averaging around -2°C in January. As spring approaches, temperatures gradually rise, with March marking a significant thaw, bringing average highs of around 6°C. Summers are warm to hot, with June and July experiencing sweltering heatwaves, although the temperature rarely exceeds 35°C. Autumn brings a return to more moderate temperatures, with September's averages dropping back down to around 20°C. The coldest months are usually December and January, while the warmest periods occur during the summer months of June, July, and August.