University of Toronto Atmospheric Observatory weather

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 Latitude N 43° 39' 36"    Longitude W 79° 24' 00"    Elevation 174 m

Records began on 24 October 2001. Here are the extremes recorded since then. Please note that there are many errors which occurred in the conversion of data stored in WeatherLink to the current Cumulus sofware. Please ignore these errors for the time being.

Records Since 24 October 2001
Temperature and Humidity
Highest Temperature 36.8 °C at 19:30 on 21 July 2011
Lowest Temperature -1838.0 °C at 14:30 on 06 February 2013
Highest Dew Point 26.8 °C at 17:00 on 29 July 2002
Lowest Dew Point -1917.0 °C at 14:30 on 06 February 2013
Highest Apparent Temperature 1.328E9 °C at 07:26 on 08 February 2013
Lowest Apparent Temperature -4.352E10 °C at 15:30 on 24 October 2001
Lowest Wind Chill Temperature -2265.0 °C at 07:09 on 08 February 2013
Highest Heat Index 37.3 °C at 22:38 on 07 September 2016
Highest Minimum 28.0 °C at 00:00 on 01 August 2010
Lowest Maximum -15.1 °C at 00:00 on 03 March 2003
Highest Humidity 100 % at 01:50 on 25 October 2001
Lowest Humidity -3276 % at 13:30 on 03 May 2003
Highest Daily Range 1835.0 °C on 06 February 2013
Lowest Daily Range 0.0 °C on 01 October 2001
Rainfall
Highest Rain Rate 1920.0 mm/hr at 18:00 on 29 December 2004
Highest Hourly Rainfall 649.6 mm at 14:41 on 15 December 2013
Highest Daily Rainfall 6858.0 mm on 28 December 2004
Highest Monthly Rainfall 10143.0 mm December 2004
Longest Dry Period 66 days to 10 February 2013
Longest Wet Period 32 days to 12 May 2013
Wind
Highest Wind Gust 30.0 m/s at 21:00 on 09 March 2002
Highest Wind Speed Average 17.0 m/s at 21:30 on 09 March 2002
Highest Daily Wind Run 670.3 km on 31 March 2017
Pressure
Lowest Pressure (sl) 958.28 hPa at 05:30 on 09 January 2003
Highest Pressure (sl) 1022.69 hPa at 16:07 on 25 October 2013


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