Category: Cold spells affecting Canada

Cold spell occuring from October 20 2023 to November 03 2023 at 46.5°N 254.5°E

Download data: JSON

Event type: Cold spell

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

  • Canada
  • Mexico
  • United States

Duration: 15 days

Time span: October 20 2023 to November 03 2023

Statistics over entire affected area:

  • Mean temperature anomaly: -8.3 °C
  • Mean temperature: -2.0 °C
  • Minimum temperature anomaly: -20.7 °C
  • Minimum temperature: -28.0 °C

Event center: 46.5°N 254.5°E

Area affected: 7698824 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_2023-Oct-20_to_2023-Nov-03_254.5_46.5

Cold spell occuring from October 15 2023 to October 21 2023 at 69.0°N 284.5°E

Download data: JSON

Event type: Cold spell

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

  • Canada

Duration: 7 days

Time span: October 15 2023 to October 21 2023

Statistics over entire affected area:

  • Mean temperature anomaly: -10.2 °C
  • Mean temperature: -20.1 °C
  • Minimum temperature anomaly: -16.9 °C
  • Minimum temperature: -27.7 °C

Event center: 69.0°N 284.5°E

Area affected: 111728 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_2023-Oct-15_to_2023-Oct-21_284.5_69.0

Cold spell occuring from October 14 2023 to October 20 2023 at 76.5°N 291.5°E

Download data: JSON

Event type: Cold spell

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

  • Canada
  • Greenland

Duration: 7 days

Time span: October 14 2023 to October 20 2023

Statistics over entire affected area:

  • Mean temperature anomaly: -10.3 °C
  • Mean temperature: -30.0 °C
  • Minimum temperature anomaly: -17.9 °C
  • Minimum temperature: -41.1 °C

Event center: 76.5°N 291.5°E

Area affected: 398994 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_2023-Oct-14_to_2023-Oct-20_291.5_76.5

Cold spell occuring from October 13 2023 to October 16 2023 at 83.0°N 217.0°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: October 13 2023 to October 16 2023

Statistics over entire affected area:

  • Mean temperature anomaly: -5.1 °C
  • Mean temperature: -18.4 °C
  • Minimum temperature anomaly: -6.4 °C
  • Minimum temperature: -19.7 °C

Event center: 83.0°N 217.0°E

Area affected: 61177 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_2023-Oct-13_to_2023-Oct-16_217.0_83.0

Cold spell occuring from October 11 2023 to October 21 2023 at 84.5°N 77.0°E

Download data: JSON

Event type: Cold spell

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

  • Canada
  • Russian Federation

Duration: 11 days

Time span: October 11 2023 to October 21 2023

Statistics over entire affected area:

  • Mean temperature anomaly: -6.7 °C
  • Mean temperature: -19.2 °C
  • Minimum temperature anomaly: -11.2 °C
  • Minimum temperature: -23.4 °C

Event center: 84.5°N 77.0°E

Area affected: 1083764 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_2023-Oct-11_to_2023-Oct-21_77.0_84.5

Cold spell occuring from September 17 2023 to September 24 2023 at 62.0°N 295.5°E

Download data: JSON

Event type: Cold spell

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

  • Canada

Duration: 8 days

Time span: September 17 2023 to September 24 2023

Statistics over entire affected area:

  • Mean temperature anomaly: -2.4 °C
  • Mean temperature: -0.3 °C
  • Minimum temperature anomaly: -8.9 °C
  • Minimum temperature: -13.8 °C

Event center: 62.0°N 295.5°E

Area affected: 316036 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_2023-Sep-17_to_2023-Sep-24_295.5_62.0

Cold spell occuring from August 25 2023 to September 03 2023 at 69.5°N 288.5°E

Download data: JSON

Event type: Cold spell

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

  • Canada

Duration: 10 days

Time span: August 25 2023 to September 03 2023

Statistics over entire affected area:

  • Mean temperature anomaly: -4.3 °C
  • Mean temperature: -1.9 °C
  • Minimum temperature anomaly: -10.8 °C
  • Minimum temperature: -10.1 °C

Event center: 69.5°N 288.5°E

Area affected: 93155 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_2023-Aug-25_to_2023-Sep-03_288.5_69.5

Cold spell occuring from July 30 2023 to August 03 2023 at 51.0°N 296.0°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: July 30 2023 to August 03 2023

Statistics over entire affected area:

  • Mean temperature anomaly: -3.8 °C
  • Mean temperature: 11.4 °C
  • Minimum temperature anomaly: -5.0 °C
  • Minimum temperature: 9.4 °C

Event center: 51.0°N 296.0°E

Area affected: 61124 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_2023-Jul-30_to_2023-Aug-03_296.0_51.0

Cold spell occuring from July 28 2023 to August 04 2023 at 47.5°N 287.5°E

Download data: JSON

Event type: Cold spell

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

  • Canada
  • United States

Duration: 8 days

Time span: July 28 2023 to August 04 2023

Statistics over entire affected area:

  • Mean temperature anomaly: -4.3 °C
  • Mean temperature: 14.3 °C
  • Minimum temperature anomaly: -6.8 °C
  • Minimum temperature: 8.0 °C

Event center: 47.5°N 287.5°E

Area affected: 838008 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_2023-Jul-28_to_2023-Aug-04_287.5_47.5

Cold spell occuring from July 28 2023 to July 31 2023 at 56.5°N 293.0°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: July 28 2023 to July 31 2023

Statistics over entire affected area:

  • Mean temperature anomaly: -5.9 °C
  • Mean temperature: 8.0 °C
  • Minimum temperature anomaly: -9.3 °C
  • Minimum temperature: 4.2 °C

Event center: 56.5°N 293.0°E

Area affected: 77793 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_2023-Jul-28_to_2023-Jul-31_293.0_56.5