As Toronto residents survey the aftermath of Monday's sudden severe storm that left commuters stranded, streets flooded and power outages across the city, here's a breakdown of the torrential downpour by the numbers:

300,000 - The number of residents in the west end of the Greater Toronto Area without power at the height of the power outage. According to Hydro One, the outage was due to "significant flooding" at two transmission stations.

20,000 - The approximate number of GTA residents still without power late Tuesday morning, according to Toronto Hydro.

126 mm - The record-smashing amount of rainfall Environment Canada reported at Toronto's Pearson International Airport. The previous single-day rainfall record was 121 mm from hurricane Hazel swept through the city on Oct. 15, 1954.

97 mm - The amount of rainfall that reportedly poured on downtown Toronto, according to Environment Canada. Slightly less than the record amount, but enough to cause flooding, transit cancellations and commuters stranded.

90 - The number of minutes it took for 90 millimetres of rain to fall at Pearson Airport, according to Enivronment Canada. The surprising and quick-moving storm began before Environment Canada issued a warning.

1,400 - The approximate number of GO Transit passengers stranded on a northbound train at Bayview and Pottery Rd. due to flooding on the tracks.

7 - The number of hours it took officials to rescue the GO Transit passengers via small inflatable boats.

10 - The approximate number of hours the Don Valley Parkway was closed between Highway 401 and the Gardiner Expressway due to flooding.

1,000 - The approximate number of calls to the city's 311 telephone line concerning basement flooding on Monday.