While a somewhat obscure statistic, the range between the average daily high and low temperature for Waterloo was the smallest on record for January at just a shade under twelve degrees. The moderating impacts of having plenty of cloud cover and snow cover likely helped bringing this value in as the smallest on record. This metric isn't really a sign of having consistent temperatures over the month as the overall range was 50 degrees, but rather a general lack of having a large single day difference between high and low.

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