Today's already one for the record books.. with Winnipeg airport's 28.6C as of 1 pm surpassing the record high for Oct 5th of 28.3C set back in 1943. The question now is.. could Winnipeg set an all time high temperature today for any day in October, which currently stands at 30.5C on Oct 1 1992? The potential is there.. with a few more hours of heating left this afternoon along with gusty south to southeast winds tapping warm air to the south, lots of sunshine, and low humidity. Since 1872, Winnipeg has hit the 30C mark in October on only 3 occasions.. Oct 1 1992 (30.5C), Oct 1 1922 (30.0C) and Oct 6 1879 (30.0C) The way things are going, today will be another to add to the list. One for the record books!
3 pm update: It's official! Winnipeg records hottest October day ever with a temperature of 30.8C as of 3 pm today. (Final reading 31.1C) Previous warmest October day was Oct 1 1992 at 30.5C. Records go back to 1872. Temperature may still climb a bit for the final reading today. Temperature at my Rob's Obs site hit 31.7C at 3:39 pm (see temperature graph left).
The record day today was accompanied by gusty southerly winds up to 60 km/h, tapping 925 mb temperatures of 25C (see 19Z 925 mb plot) This, along with plenty of sunshine and low humidity, resulted in surface temperatures of 30-33C across the Red River valley. Manitoba and Canadian hot spot today was Portage La Prairie at 32.8C. See Free Press article on record setting day.