求翻译：由于来自不列颠哥伦比亚的切努克风和其他因素的作用，班夫冬季的温度和埃德蒙顿以及其他阿尔伯塔中北部地区相比相对温和。班夫镇1月平均最低温度为-15°C，平均最高温度为-5°C。 夏天气候宜人，7月平均最高温度为22°C，最低为7°C。是什么意思？

As the chinook winds from British Columbia and other factors, the role of winter temperature and Banff and other Alberta Edmonton, north-central region compared to the relatively mild. The town of Banff in January the average minimum temperature of -15 ° C, average maximum temperature of -5 ° C. Sum

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