Category: Cold spells affecting Canada

Cold spell occuring from November 07 2020 to November 13 2020 at 49.5°N 236.0°E

Download data: JSON

Event type: Cold spell

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

  • Canada
  • United States

Duration: 7 days

Time span: November 07 2020 to November 13 2020

Statistics over entire affected area:

  • Mean temperature anomaly: -3.6 °C
  • Mean temperature: 4.0 °C
  • Minimum temperature anomaly: -7.2 °C
  • Minimum temperature: -1.2 °C

Event center: 49.5°N 236.0°E

Area affected: 61875 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-Nov-07_to_2020-Nov-13_236.0_49.5

Cold spell occuring from November 02 2020 to November 04 2020 at 57.0°N 284.5°E

Download data: JSON

Event type: Cold spell

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

  • Canada

Duration: 3 days

Time span: November 02 2020 to November 04 2020

Statistics over entire affected area:

  • Mean temperature anomaly: -6.4 °C
  • Mean temperature: -9.6 °C
  • Minimum temperature anomaly: -9.7 °C
  • Minimum temperature: -14.2 °C

Event center: 57.0°N 284.5°E

Area affected: 177176 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-Nov-02_to_2020-Nov-04_284.5_57.0

Cold spell occuring from October 28 2020 to November 08 2020 at 62.5°N 225.5°E

Download data: JSON

Event type: Cold spell

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

  • Canada
  • United States

Duration: 12 days

Time span: October 28 2020 to November 08 2020

Statistics over entire affected area:

  • Mean temperature anomaly: -8.9 °C
  • Mean temperature: -14.7 °C
  • Minimum temperature anomaly: -19.1 °C
  • Minimum temperature: -34.5 °C

Event center: 62.5°N 225.5°E

Area affected: 1478744 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-Oct-28_to_2020-Nov-08_225.5_62.5

Cold spell occuring from October 27 2020 to November 01 2020 at 49.0°N 306.0°E

Download data: JSON

Event type: Cold spell

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

  • Canada

Duration: 6 days

Time span: October 27 2020 to November 01 2020

Statistics over entire affected area:

  • Mean temperature anomaly: -5.0 °C
  • Mean temperature: -0.7 °C
  • Minimum temperature anomaly: -8.2 °C
  • Minimum temperature: -5.7 °C

Event center: 49.0°N 306.0°E

Area affected: 78938 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-Oct-27_to_2020-Nov-01_306.0_49.0

Cold spell occuring from October 26 2020 to October 31 2020 at 50.0°N 297.5°E

Download data: JSON

Event type: Cold spell

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

  • Canada

Duration: 6 days

Time span: October 26 2020 to October 31 2020

Statistics over entire affected area:

  • Mean temperature anomaly: -4.8 °C
  • Mean temperature: -1.4 °C
  • Minimum temperature anomaly: -8.8 °C
  • Minimum temperature: -7.2 °C

Event center: 50.0°N 297.5°E

Area affected: 63324 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-Oct-26_to_2020-Oct-31_297.5_50.0

Cold spell occuring from October 14 2020 to October 31 2020 at 46.0°N 252.0°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: October 14 2020 to October 31 2020

Statistics over entire affected area:

  • Mean temperature anomaly: -8.9 °C
  • Mean temperature: -5.2 °C
  • Minimum temperature anomaly: -23.5 °C
  • Minimum temperature: -31.0 °C

Event center: 46.0°N 252.0°E

Area affected: 7800396 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-Oct-14_to_2020-Oct-31_252.0_46.0

Cold spell occuring from October 02 2020 to October 04 2020 at 47.5°N 270.0°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: October 02 2020 to October 04 2020

Statistics over entire affected area:

  • Mean temperature anomaly: -6.1 °C
  • Mean temperature: 4.5 °C
  • Minimum temperature anomaly: -7.1 °C
  • Minimum temperature: 1.4 °C

Event center: 47.5°N 270.0°E

Area affected: 75175 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-Oct-02_to_2020-Oct-04_270.0_47.5

Cold spell occuring from September 14 2020 to October 01 2020 at 77.5°N 316.0°E

Download data: JSON

Event type: Cold spell

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

  • Andorra
  • Austria
  • Canada
  • Croatia
  • France
  • Germany
  • Greenland
  • Iceland
  • Ireland
  • Italy
  • Luxembourg
  • Slovenia
  • Spain
  • Switzerland
  • United Kingdom

Duration: 18 days

Time span: September 14 2020 to October 01 2020

Statistics over entire affected area:

  • Mean temperature anomaly: -6.8 °C
  • Mean temperature: -14.1 °C
  • Minimum temperature anomaly: -15.9 °C
  • Minimum temperature: -41.4 °C

Event center: 77.5°N 316.0°E

Area affected: 4939781 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-Sep-14_to_2020-Oct-01_316.0_77.5

Cold spell occuring from September 06 2020 to September 08 2020 at 60.0°N 255.5°E

Download data: JSON

Event type: Cold spell

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

  • Canada

Duration: 3 days

Time span: September 06 2020 to September 08 2020

Statistics over entire affected area:

  • Mean temperature anomaly: -5.5 °C
  • Mean temperature: 3.3 °C
  • Minimum temperature anomaly: -7.0 °C
  • Minimum temperature: 1.4 °C

Event center: 60.0°N 255.5°E

Area affected: 89103 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-Sep-06_to_2020-Sep-08_255.5_60.0

Cold spell occuring from September 06 2020 to September 24 2020 at 37.5°N 254.0°E

Download data: JSON

Event type: Cold spell

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

  • Canada
  • Mexico
  • United States

Duration: 19 days

Time span: September 06 2020 to September 24 2020

Statistics over entire affected area:

  • Mean temperature anomaly: -7.1 °C
  • Mean temperature: 10.4 °C
  • Minimum temperature anomaly: -19.6 °C
  • Minimum temperature: -8.0 °C

Event center: 37.5°N 254.0°E

Area affected: 7511009 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-Sep-06_to_2020-Sep-24_254.0_37.5