Category: Extremes affecting Canada

Cold spell occuring from June 22 2020 to June 26 2020 at 64.5°N 217.5°E

Download data: JSON

Event type: Cold spell

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

  • Canada
  • United States

Duration: 5 days

Time span: June 22 2020 to June 26 2020

Statistics over entire affected area:

  • Mean temperature anomaly: -5.0 °C
  • Mean temperature: 8.4 °C
  • Minimum temperature anomaly: -7.4 °C
  • Minimum temperature: -0.5 °C

Event center: 64.5°N 217.5°E

Area affected: 203304 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_2020-Jun-22_to_2020-Jun-26_217.5_64.5

Cold spell occuring from June 18 2020 to June 29 2020 at 61.0°N 294.5°E

Download data: JSON

Event type: Cold spell

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

  • Canada

Duration: 12 days

Time span: June 18 2020 to June 29 2020

Statistics over entire affected area:

  • Mean temperature anomaly: -1.7 °C
  • Mean temperature: -0.2 °C
  • Minimum temperature anomaly: -2.4 °C
  • Minimum temperature: -1.2 °C

Event center: 61.0°N 294.5°E

Area affected: 58628 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_2020-Jun-18_to_2020-Jun-29_294.5_61.0

Cold spell occuring from June 17 2020 to June 21 2020 at 52.5°N 255.5°E

Download data: JSON

Event type: Cold spell

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

  • Canada

Duration: 5 days

Time span: June 17 2020 to June 21 2020

Statistics over entire affected area:

  • Mean temperature anomaly: -7.3 °C
  • Mean temperature: 8.1 °C
  • Minimum temperature anomaly: -11.5 °C
  • Minimum temperature: 2.6 °C

Event center: 52.5°N 255.5°E

Area affected: 503794 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_2020-Jun-17_to_2020-Jun-21_255.5_52.5

Heat wave occuring from June 16 2020 to June 30 2020 at 81.0°N 299.5°E

Download data: JSON

Event type: Heat wave

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

  • Canada
  • Greenland

Duration: 15 days

Time span: June 16 2020 to June 30 2020

Statistics over entire affected area:

  • Mean temperature anomaly: 1.3 °C
  • Mean temperature: 2.3 °C
  • Maximum temperature anomaly: 10.9 °C
  • Maximum temperature: 16.5 °C

Event center: 81.0°N 299.5°E

Area affected: 377283 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_2020-Jun-16_to_2020-Jun-30_299.5_81.0

Cold spell occuring from June 14 2020 to June 17 2020 at 64.5°N 257.5°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: June 14 2020 to June 17 2020

Statistics over entire affected area:

  • Mean temperature anomaly: -6.4 °C
  • Mean temperature: 2.0 °C
  • Minimum temperature anomaly: -8.4 °C
  • Minimum temperature: 0.0 °C

Event center: 64.5°N 257.5°E

Area affected: 58041 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_2020-Jun-14_to_2020-Jun-17_257.5_64.5

Cold spell occuring from June 14 2020 to June 16 2020 at 46.5°N 244.5°E

Download data: JSON

Event type: Cold spell

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

  • Canada
  • United States

Duration: 3 days

Time span: June 14 2020 to June 16 2020

Statistics over entire affected area:

  • Mean temperature anomaly: -5.0 °C
  • Mean temperature: 10.6 °C
  • Minimum temperature anomaly: -6.6 °C
  • Minimum temperature: 3.5 °C

Event center: 46.5°N 244.5°E

Area affected: 68947 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_2020-Jun-14_to_2020-Jun-16_244.5_46.5

Heat wave occuring from June 13 2020 to July 02 2020 at 47.5°N 296.0°E

Download data: JSON

Event type: Heat wave

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

  • Canada
  • United States

Duration: 20 days

Time span: June 13 2020 to July 02 2020

Statistics over entire affected area:

  • Mean temperature anomaly: 6.3 °C
  • Mean temperature: 23.6 °C
  • Maximum temperature anomaly: 12.9 °C
  • Maximum temperature: 30.4 °C

Event center: 47.5°N 296.0°E

Area affected: 2526894 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_2020-Jun-13_to_2020-Jul-02_296.0_47.5

Cold spell occuring from June 11 2020 to June 20 2020 at 45.5°N 279.0°E

Download data: JSON

Event type: Cold spell

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

  • Canada
  • United States

Duration: 10 days

Time span: June 11 2020 to June 20 2020

Statistics over entire affected area:

  • Mean temperature anomaly: -5.7 °C
  • Mean temperature: 10.1 °C
  • Minimum temperature anomaly: -11.4 °C
  • Minimum temperature: 3.4 °C

Event center: 45.5°N 279.0°E

Area affected: 549021 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_2020-Jun-11_to_2020-Jun-20_279.0_45.5

Heat wave occuring from June 11 2020 to July 09 2020 at 41.0°N 295.0°E

Download data: JSON

Event type: Heat wave

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

  • Canada

Duration: 29 days

Time span: June 11 2020 to July 09 2020

Statistics over entire affected area:

  • Mean temperature anomaly: 3.0 °C
  • Mean temperature: 21.7 °C
  • Maximum temperature anomaly: 6.4 °C
  • Maximum temperature: 25.7 °C

Event center: 41.0°N 295.0°E

Area affected: 1595168 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_2020-Jun-11_to_2020-Jul-09_295.0_41.0

Heat wave occuring from June 11 2020 to June 17 2020 at 70.5°N 226.0°E

Download data: JSON

Event type: Heat wave

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

  • Canada

Duration: 7 days

Time span: June 11 2020 to June 17 2020

Statistics over entire affected area:

  • Mean temperature anomaly: 6.1 °C
  • Mean temperature: 15.8 °C
  • Maximum temperature anomaly: 10.2 °C
  • Maximum temperature: 20.9 °C

Event center: 70.5°N 226.0°E

Area affected: 138071 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_2020-Jun-11_to_2020-Jun-17_226.0_70.5