Category: Extremes affecting Canada

Heat wave occuring from December 17 2022 to December 20 2022 at 48.5°N 296.5°E

Download data: JSON

Event type: Heat wave

Countries affected (identified with ArcGIS Online; provided only for geographical reference):

  • Canada

Duration: 4 days

Time span: December 17 2022 to December 20 2022

Statistics over entire affected area:

  • Mean temperature anomaly: 5.3 °C
  • Mean temperature: 1.9 °C
  • Maximum temperature anomaly: 11.8 °C
  • Maximum temperature: 4.0 °C

Event center: 48.5°N 296.5°E

Area affected: 111622 km$^2$


Fig. 1: Map of most extreme temperature anomalies (standardized) experienced during the event. The purple star indicates the center of the extreme event. Green hatching illustrates all areas under the effect of extremes at some time during the event.



Fig. 2: Evolution of temperature at the center of the event. The climatological percentile distribution is illustrated with color shadings.



Fig. 3: Maps illustrating the evolution of standardized temperature anomalies during the event.

Event ID: Heat_wave_2022-Dec-17_to_2022-Dec-20_296.5_48.5

Heat wave occuring from December 15 2022 to December 19 2022 at 53.0°N 279.5°E

Download data: JSON

Event type: Heat wave

Countries affected (identified with ArcGIS Online; provided only for geographical reference):

  • Canada

Duration: 5 days

Time span: December 15 2022 to December 19 2022

Statistics over entire affected area:

  • Mean temperature anomaly: 11.3 °C
  • Mean temperature: -2.1 °C
  • Maximum temperature anomaly: 14.8 °C
  • Maximum temperature: -0.1 °C

Event center: 53.0°N 279.5°E

Area affected: 156184 km$^2$


Fig. 1: Map of most extreme temperature anomalies (standardized) experienced during the event. The purple star indicates the center of the extreme event. Green hatching illustrates all areas under the effect of extremes at some time during the event.



Fig. 2: Evolution of temperature at the center of the event. The climatological percentile distribution is illustrated with color shadings.



Fig. 3: Maps illustrating the evolution of standardized temperature anomalies during the event.

Event ID: Heat_wave_2022-Dec-15_to_2022-Dec-19_279.5_53.0

Cold spell occuring from December 15 2022 to January 01 2023 at 51.0°N 240.5°E

Download data: JSON

Event type: Cold spell

Countries affected (identified with ArcGIS Online; provided only for geographical reference):

  • Canada
  • Mexico
  • United States

Duration: 18 days

Time span: December 15 2022 to January 01 2023

Statistics over entire affected area:

  • Mean temperature anomaly: -13.4 °C
  • Mean temperature: -21.1 °C
  • Minimum temperature anomaly: -33.8 °C
  • Minimum temperature: -50.4 °C

Event center: 51.0°N 240.5°E

Area affected: 12138308 km$^2$


Fig. 1: Map of most extreme temperature anomalies (standardized) experienced during the event. The purple star indicates the center of the extreme event. Green hatching illustrates all areas under the effect of extremes at some time during the event.



Fig. 2: Evolution of temperature at the center of the event. The climatological percentile distribution is illustrated with color shadings.



Fig. 3: Maps illustrating the evolution of standardized temperature anomalies during the event.

Event ID: Cold_spell_2022-Dec-15_to_2023-Jan-01_240.5_51.0

Heat wave occuring from December 14 2022 to December 18 2022 at 73.5°N 263.5°E

Download data: JSON

Event type: Heat wave

Countries affected (identified with ArcGIS Online; provided only for geographical reference):

  • Canada

Duration: 5 days

Time span: December 14 2022 to December 18 2022

Statistics over entire affected area:

  • Mean temperature anomaly: 8.0 °C
  • Mean temperature: -16.7 °C
  • Maximum temperature anomaly: 11.5 °C
  • Maximum temperature: -13.8 °C

Event center: 73.5°N 263.5°E

Area affected: 53182 km$^2$


Fig. 1: Map of most extreme temperature anomalies (standardized) experienced during the event. The purple star indicates the center of the extreme event. Green hatching illustrates all areas under the effect of extremes at some time during the event.



Fig. 2: Evolution of temperature at the center of the event. The climatological percentile distribution is illustrated with color shadings.



Fig. 3: Maps illustrating the evolution of standardized temperature anomalies during the event.

Event ID: Heat_wave_2022-Dec-14_to_2022-Dec-18_263.5_73.5

Cold spell occuring from December 08 2022 to December 11 2022 at 56.0°N 223.5°E

Download data: JSON

Event type: Cold spell

Countries affected (identified with ArcGIS Online; provided only for geographical reference):

  • Canada

Duration: 4 days

Time span: December 08 2022 to December 11 2022

Statistics over entire affected area:

  • Mean temperature anomaly: -2.7 °C
  • Mean temperature: 3.9 °C
  • Minimum temperature anomaly: -5.1 °C
  • Minimum temperature: 0.4 °C

Event center: 56.0°N 223.5°E

Area affected: 202967 km$^2$


Fig. 1: Map of most extreme temperature anomalies (standardized) experienced during the event. The purple star indicates the center of the extreme event. Green hatching illustrates all areas under the effect of extremes at some time during the event.



Fig. 2: Evolution of temperature at the center of the event. The climatological percentile distribution is illustrated with color shadings.



Fig. 3: Maps illustrating the evolution of standardized temperature anomalies during the event.

Event ID: Cold_spell_2022-Dec-08_to_2022-Dec-11_223.5_56.0

Heat wave occuring from November 21 2022 to November 24 2022 at 58.0°N 229.0°E

Download data: JSON

Event type: Heat wave

Countries affected (identified with ArcGIS Online; provided only for geographical reference):

  • Canada
  • United States

Duration: 4 days

Time span: November 21 2022 to November 24 2022

Statistics over entire affected area:

  • Mean temperature anomaly: 7.6 °C
  • Mean temperature: 0.6 °C
  • Maximum temperature anomaly: 13.5 °C
  • Maximum temperature: 8.1 °C

Event center: 58.0°N 229.0°E

Area affected: 187247 km$^2$


Fig. 1: Map of most extreme temperature anomalies (standardized) experienced during the event. The purple star indicates the center of the extreme event. Green hatching illustrates all areas under the effect of extremes at some time during the event.



Fig. 2: Evolution of temperature at the center of the event. The climatological percentile distribution is illustrated with color shadings.



Fig. 3: Maps illustrating the evolution of standardized temperature anomalies during the event.

Event ID: Heat_wave_2022-Nov-21_to_2022-Nov-24_229.0_58.0

Cold spell occuring from November 11 2022 to November 14 2022 at 55.5°N 299.0°E

Download data: JSON

Event type: Cold spell

Countries affected (identified with ArcGIS Online; provided only for geographical reference):

  • Canada

Duration: 4 days

Time span: November 11 2022 to November 14 2022

Statistics over entire affected area:

  • Mean temperature anomaly: -7.3 °C
  • Mean temperature: -13.3 °C
  • Minimum temperature anomaly: -10.8 °C
  • Minimum temperature: -16.9 °C

Event center: 55.5°N 299.0°E

Area affected: 151286 km$^2$


Fig. 1: Map of most extreme temperature anomalies (standardized) experienced during the event. The purple star indicates the center of the extreme event. Green hatching illustrates all areas under the effect of extremes at some time during the event.



Fig. 2: Evolution of temperature at the center of the event. The climatological percentile distribution is illustrated with color shadings.



Fig. 3: Maps illustrating the evolution of standardized temperature anomalies during the event.

Event ID: Cold_spell_2022-Nov-11_to_2022-Nov-14_299.0_55.5

Heat wave occuring from November 10 2022 to November 12 2022 at 46.0°N 283.0°E

Download data: JSON

Event type: Heat wave

Countries affected (identified with ArcGIS Online; provided only for geographical reference):

  • Canada
  • United States

Duration: 3 days

Time span: November 10 2022 to November 12 2022

Statistics over entire affected area:

  • Mean temperature anomaly: 8.5 °C
  • Mean temperature: 10.4 °C
  • Maximum temperature anomaly: 12.3 °C
  • Maximum temperature: 15.2 °C

Event center: 46.0°N 283.0°E

Area affected: 174993 km$^2$


Fig. 1: Map of most extreme temperature anomalies (standardized) experienced during the event. The purple star indicates the center of the extreme event. Green hatching illustrates all areas under the effect of extremes at some time during the event.



Fig. 2: Evolution of temperature at the center of the event. The climatological percentile distribution is illustrated with color shadings.



Fig. 3: Maps illustrating the evolution of standardized temperature anomalies during the event.

Event ID: Heat_wave_2022-Nov-10_to_2022-Nov-12_283.0_46.0

Heat wave occuring from November 10 2022 to November 27 2022 at 68.5°N 240.5°E

Download data: JSON

Event type: Heat wave

Countries affected (identified with ArcGIS Online; provided only for geographical reference):

  • Canada
  • United States

Duration: 18 days

Time span: November 10 2022 to November 27 2022

Statistics over entire affected area:

  • Mean temperature anomaly: 10.9 °C
  • Mean temperature: -5.8 °C
  • Maximum temperature anomaly: 23.0 °C
  • Maximum temperature: 9.2 °C

Event center: 68.5°N 240.5°E

Area affected: 5015833 km$^2$


Fig. 1: Map of most extreme temperature anomalies (standardized) experienced during the event. The purple star indicates the center of the extreme event. Green hatching illustrates all areas under the effect of extremes at some time during the event.



Fig. 2: Evolution of temperature at the center of the event. The climatological percentile distribution is illustrated with color shadings.



Fig. 3: Maps illustrating the evolution of standardized temperature anomalies during the event.

Event ID: Heat_wave_2022-Nov-10_to_2022-Nov-27_240.5_68.5

Cold spell occuring from November 07 2022 to December 09 2022 at 80.0°N 265.5°E

Download data: JSON

Event type: Cold spell

Countries affected (identified with ArcGIS Online; provided only for geographical reference):

  • Canada
  • Greenland
  • United States

Duration: 33 days

Time span: November 07 2022 to December 09 2022

Statistics over entire affected area:

  • Mean temperature anomaly: -8.6 °C
  • Mean temperature: -27.6 °C
  • Minimum temperature anomaly: -23.8 °C
  • Minimum temperature: -51.1 °C

Event center: 80.0°N 265.5°E

Area affected: 9697271 km$^2$


Fig. 1: Map of most extreme temperature anomalies (standardized) experienced during the event. The purple star indicates the center of the extreme event. Green hatching illustrates all areas under the effect of extremes at some time during the event.



Fig. 2: Evolution of temperature at the center of the event. The climatological percentile distribution is illustrated with color shadings.



Fig. 3: Maps illustrating the evolution of standardized temperature anomalies during the event.

Event ID: Cold_spell_2022-Nov-07_to_2022-Dec-09_265.5_80.0