Category: Cold spells affecting Canada

Cold spell occuring from July 27 2023 to August 07 2023 at 82.5°N 334.0°E

Download data: JSON

Event type: Cold spell

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

  • Canada
  • Greenland

Duration: 12 days

Time span: July 27 2023 to August 07 2023

Statistics over entire affected area:

  • Mean temperature anomaly: -4.7 °C
  • Mean temperature: -2.9 °C
  • Minimum temperature anomaly: -12.5 °C
  • Minimum temperature: -11.3 °C

Event center: 82.5°N 334.0°E

Area affected: 231136 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-27_to_2023-Aug-07_334.0_82.5

Cold spell occuring from July 25 2023 to July 29 2023 at 54.0°N 246.0°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 25 2023 to July 29 2023

Statistics over entire affected area:

  • Mean temperature anomaly: -4.3 °C
  • Mean temperature: 12.4 °C
  • Minimum temperature anomaly: -6.2 °C
  • Minimum temperature: 9.1 °C

Event center: 54.0°N 246.0°E

Area affected: 103621 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-25_to_2023-Jul-29_246.0_54.0

Cold spell occuring from July 15 2023 to July 17 2023 at 49.5°N 257.5°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: July 15 2023 to July 17 2023

Statistics over entire affected area:

  • Mean temperature anomaly: -4.5 °C
  • Mean temperature: 14.7 °C
  • Minimum temperature anomaly: -5.8 °C
  • Minimum temperature: 13.0 °C

Event center: 49.5°N 257.5°E

Area affected: 86109 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-15_to_2023-Jul-17_257.5_49.5

Cold spell occuring from July 14 2023 to July 16 2023 at 84.0°N 227.5°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: July 14 2023 to July 16 2023

Statistics over entire affected area:

  • Mean temperature anomaly: -0.6 °C
  • Mean temperature: 0.2 °C
  • Minimum temperature anomaly: -0.9 °C
  • Minimum temperature: -0.2 °C

Event center: 84.0°N 227.5°E

Area affected: 54061 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-14_to_2023-Jul-16_227.5_84.0

Cold spell occuring from July 09 2023 to July 20 2023 at 71.0°N 289.0°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: July 09 2023 to July 20 2023

Statistics over entire affected area:

  • Mean temperature anomaly: -2.3 °C
  • Mean temperature: -0.3 °C
  • Minimum temperature anomaly: -6.8 °C
  • Minimum temperature: -3.3 °C

Event center: 71.0°N 289.0°E

Area affected: 101842 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-09_to_2023-Jul-20_289.0_71.0

Cold spell occuring from July 04 2023 to July 07 2023 at 85.0°N 291.0°E

Download data: JSON

Event type: Cold spell

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

  • Canada
  • Greenland

Duration: 4 days

Time span: July 04 2023 to July 07 2023

Statistics over entire affected area:

  • Mean temperature anomaly: -0.8 °C
  • Mean temperature: 0.2 °C
  • Minimum temperature anomaly: -2.0 °C
  • Minimum temperature: -0.6 °C

Event center: 85.0°N 291.0°E

Area affected: 166657 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-04_to_2023-Jul-07_291.0_85.0

Cold spell occuring from June 27 2023 to August 01 2023 at 48.0°N 271.0°E

Download data: JSON

Event type: Cold spell

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

  • Canada
  • United States

Duration: 36 days

Time span: June 27 2023 to August 01 2023

Statistics over entire affected area:

  • Mean temperature anomaly: -5.9 °C
  • Mean temperature: 11.2 °C
  • Minimum temperature anomaly: -11.3 °C
  • Minimum temperature: 3.8 °C

Event center: 48.0°N 271.0°E

Area affected: 748552 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-Jun-27_to_2023-Aug-01_271.0_48.0

Cold spell occuring from June 21 2023 to July 20 2023 at 71.0°N 283.0°E

Download data: JSON

Event type: Cold spell

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

  • Canada

Duration: 30 days

Time span: June 21 2023 to July 20 2023

Statistics over entire affected area:

  • Mean temperature anomaly: -4.3 °C
  • Mean temperature: 1.0 °C
  • Minimum temperature anomaly: -8.5 °C
  • Minimum temperature: -4.8 °C

Event center: 71.0°N 283.0°E

Area affected: 349270 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-Jun-21_to_2023-Jul-20_283.0_71.0

Cold spell occuring from June 16 2023 to June 21 2023 at 48.5°N 307.0°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: June 16 2023 to June 21 2023

Statistics over entire affected area:

  • Mean temperature anomaly: -4.6 °C
  • Mean temperature: 5.2 °C
  • Minimum temperature anomaly: -8.4 °C
  • Minimum temperature: 3.0 °C

Event center: 48.5°N 307.0°E

Area affected: 66685 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-Jun-16_to_2023-Jun-21_307.0_48.5

Cold spell occuring from June 15 2023 to June 20 2023 at 48.0°N 297.5°E

Download data: JSON

Event type: Cold spell

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

  • Canada
  • United States

Duration: 6 days

Time span: June 15 2023 to June 20 2023

Statistics over entire affected area:

  • Mean temperature anomaly: -4.1 °C
  • Mean temperature: 9.5 °C
  • Minimum temperature anomaly: -8.1 °C
  • Minimum temperature: 6.2 °C

Event center: 48.0°N 297.5°E

Area affected: 148175 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-Jun-15_to_2023-Jun-20_297.5_48.0