On Tuesday afternoon at 3 p. m., the temperature reached 18.7 C at the Region of Waterloo International Airport, breaking the record for the warmest March 10.
The previous record was 16.3 C set in 2021.
It’s “rare” to experience temperatures this warm during this time of year, said Eric Tomlinson, a warning preparedness meteorologist from Environment Canada who confirmed the new record.
An annual contest through the University of Waterloo’s weather station invites people to predict when the first day of 20 C will occur each year.
The earliest date recorded for a first 20 C day was March 8, 2000, at noon. The latest date was May 13, 2020, at 3:15 p. m. The last time a day reached 20 C in March was in 2012; since then, all such days have occurred in April or May.
This warm and humid Tuesday also brought a rainfall warning for the Waterloo region along with potential thunderstorms. Environment Canada’s yellow weather warning indicated that up to 40 mm of rain could fall from Tuesday evening into Wednesday.
Several areas in and around Waterloo region were under flood warnings on Tuesday as well. The weekend’s mild temperatures combined with melting snow and rainfall led to higher water levels throughout the Grand River watershed.
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