Weather Extremes


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Maximum (highest) temperature (last 24 hours)
No. Location Station Temperature
1 Sarnia Climate, Ont (Canada) 71746 35.9°C
2 Western Head, N. S. (Canada) 71411 35.7°C
3 Sarnia Chris Hadfield A, Ont (Canada) 71704 35.4°C
4 Windsor, Ont. (Canada) 71538 35.3°C
5 Borden Awos, Ont (Canada) 71534 35.1°C
6 L'Acadie (Canada) 71372 34.3°C
7 Ottawa Int'L. Ont. (Canada) 71628 33.9°C
8 Peterborough, Ont (Canada) 71436 33.8°C
9 Toronto City, Ont (Canada) 71508 33.8°C
10 Brantford Airport, Ont (Canada) 71602 33.7°C


Minimum (lowest) Temperature (last 24 hours)
No. Location Station Temperature
1 Isachsen Meteorological Aeronautical Presentation System (Canada) 71074 -1°C
2 Tatlayoko Lake Rcs, Bc (Canada) 71028 -0.6°C
3 Nakiska Ridgetop (Canada) 71245 -0.3°C
4 Manyberries AGCM, Alta (Canada) 71051 -0.2°C
5 Mould Bay Cs, Nwt (Canada) 71989 0°C
6 Crowsnest (Canada) 71236 0.1°C
7 Barons Agcm, Alta (Canada) 71007 0.2°C
8 Resolute (Cap15) (Canada) 71649 0.2°C
9 Resolute Cs, Nu (Canada) 71018 0.2°C
10 Alert Climate, Nu (Canada) 71355 0.4°C


Maximum (largest amount) Precipitation (last 24 hours)
No. Location Station Amount
1 Sioux Falls Climate, Sd (Canada) 71168 94 mm
2 Wynyard, Sask. (Canada) 71865 69.7 mm
3 Brownvale AGCM, Alta (Canada) 71283 66.4 mm
4 Vegreville, Alta (Canada) 71458 56 mm
5 Chamouchouane Automatic Weather Reporting System (Canada) 71523 49.5 mm
6 Fort Good Hope Cs, Nwt (Canada) 71491 44.2 mm
7 Lethbridge Demo Farm Agdm, Alta (Canada) 71509 38.9 mm
8 Pincher Creek, Alta (Canada) 71085 34.3 mm
9 Brocket Agdm, Alta (Canada) 71341 33.3 mm
10 Rock River, Yt (Canada) 71506 32.8 mm
Script courtesy of Michael Holden of Relay Weather. Data courtesy of Ogimet (Last data update @ 02:00 on July 21st, 2019 UTC)


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Warning: Many data filters have been introduced to the above data. Use caution with this data as some extreme values can be erroneous due to unsuspected errors in synop reports. All data should be verified. Note that the values we listed here are from international released synop reports, and for certain there will be other extreme values not in this list