June was hot, and the extreme heat is lingering into July
WATERLOO — June was a hot and dry month in Waterloo Region.
There were four days above 30 C recorded by the University of Waterloo weather station. The high temperature of 33.4 C on the 17th was the warmest June day since 2005 when the mercury reached 33.5 C on the 27th. That record level was nearly reached on the last day of the month when it got up to 33.2 C.
Twelve days went by with less than half a millimetre of rain. Even with the 20 mm that came down on the 24th, the total monthly precipitation of 56.6 mm was just below the bottom of the average range (60.5 mm).
While the June average temperature was more than a degree above average, that was coming on the heels of a very hot May which was 4.5 degrees above average.
The last time there was a June with below average overall temperature was 2009.
June’s hot weather is sticking around into July.
The extreme heat that settled into the region late last week is expected to linger through Thursday, according to Environment Canada, which pegs it as “the most significant heat event in the past few years.”
Daytime highs in the low 30s will continue through Thursday. Humidex values will be in the mid to high 30s today, and near low 40s for Wednesday and Thursday.
Overnight low temperatures are expected to be in the low 20s, providing little or no relief from the heat. A cool-down is expected by Friday with the passage of a cold front.