After setting a record low temperature at Waterloo on 1 April of 15 degrees, the high temperature on Sunday tied the record for the date of 82 degrees making for a remarkable start to the month of April. The featured chart presents temperature percentile values for the month of April for Waterloo. The top left panel shows these values by hour and the bottom panel shows values by hour for this year. The table on the right hand side shows the raw percentile values over all hours for the month. Being it the first part of April, the bulk of the warmer days later in the month skew the distributions some, but it is still wild to see the temperature go from one extreme to the opposite other over just four days.

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