Category: Cold spells affecting Canada

Cold spell occuring from July 01 2021 to July 05 2021 at 42.0°N 289.0°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: July 01 2021 to July 05 2021

Statistics over entire affected area:

  • Mean temperature anomaly: -5.2 °C
  • Mean temperature: 13.5 °C
  • Minimum temperature anomaly: -8.7 °C
  • Minimum temperature: 8.8 °C

Event center: 42.0°N 289.0°E

Area affected: 326421 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_2021-Jul-01_to_2021-Jul-05_289.0_42.0

Cold spell occuring from June 30 2021 to July 11 2021 at 75.0°N 304.0°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: June 30 2021 to July 11 2021

Statistics over entire affected area:

  • Mean temperature anomaly: -4.2 °C
  • Mean temperature: -5.2 °C
  • Minimum temperature anomaly: -7.9 °C
  • Minimum temperature: -14.4 °C

Event center: 75.0°N 304.0°E

Area affected: 555727 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_2021-Jun-30_to_2021-Jul-11_304.0_75.0

Cold spell occuring from June 30 2021 to July 06 2021 at 69.5°N 264.5°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: June 30 2021 to July 06 2021

Statistics over entire affected area:

  • Mean temperature anomaly: -4.5 °C
  • Mean temperature: 1.8 °C
  • Minimum temperature anomaly: -7.6 °C
  • Minimum temperature: -0.2 °C

Event center: 69.5°N 264.5°E

Area affected: 111791 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_2021-Jun-30_to_2021-Jul-06_264.5_69.5

Cold spell occuring from June 27 2021 to July 06 2021 at 80.0°N 277.5°E

Download data: JSON

Event type: Cold spell

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

  • Canada
  • Greenland

Duration: 10 days

Time span: June 27 2021 to July 06 2021

Statistics over entire affected area:

  • Mean temperature anomaly: -4.1 °C
  • Mean temperature: 0.3 °C
  • Minimum temperature anomaly: -8.4 °C
  • Minimum temperature: -9.0 °C

Event center: 80.0°N 277.5°E

Area affected: 473894 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_2021-Jun-27_to_2021-Jul-06_277.5_80.0

Cold spell occuring from June 25 2021 to July 01 2021 at 60.0°N 281.5°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: June 25 2021 to July 01 2021

Statistics over entire affected area:

  • Mean temperature anomaly: -4.8 °C
  • Mean temperature: 1.7 °C
  • Minimum temperature anomaly: -7.2 °C
  • Minimum temperature: -1.0 °C

Event center: 60.0°N 281.5°E

Area affected: 52818 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_2021-Jun-25_to_2021-Jul-01_281.5_60.0

Cold spell occuring from June 19 2021 to June 24 2021 at 48.0°N 274.5°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: June 19 2021 to June 24 2021

Statistics over entire affected area:

  • Mean temperature anomaly: -6.2 °C
  • Mean temperature: 9.6 °C
  • Minimum temperature anomaly: -10.0 °C
  • Minimum temperature: 5.4 °C

Event center: 48.0°N 274.5°E

Area affected: 90477 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_2021-Jun-19_to_2021-Jun-24_274.5_48.0

Cold spell occuring from June 06 2021 to June 11 2021 at 51.0°N 237.5°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: June 06 2021 to June 11 2021

Statistics over entire affected area:

  • Mean temperature anomaly: -4.6 °C
  • Mean temperature: 4.3 °C
  • Minimum temperature anomaly: -6.9 °C
  • Minimum temperature: -1.9 °C

Event center: 51.0°N 237.5°E

Area affected: 113564 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_2021-Jun-06_to_2021-Jun-11_237.5_51.0

Cold spell occuring from May 27 2021 to May 29 2021 at 48.5°N 286.5°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: May 27 2021 to May 29 2021

Statistics over entire affected area:

  • Mean temperature anomaly: -6.9 °C
  • Mean temperature: 5.4 °C
  • Minimum temperature anomaly: -10.2 °C
  • Minimum temperature: 2.0 °C

Event center: 48.5°N 286.5°E

Area affected: 90975 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_2021-May-27_to_2021-May-29_286.5_48.5

Cold spell occuring from May 27 2021 to May 31 2021 at 42.5°N 286.0°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: May 27 2021 to May 31 2021

Statistics over entire affected area:

  • Mean temperature anomaly: -7.7 °C
  • Mean temperature: 9.3 °C
  • Minimum temperature anomaly: -11.4 °C
  • Minimum temperature: 4.7 °C

Event center: 42.5°N 286.0°E

Area affected: 419539 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_2021-May-27_to_2021-May-31_286.0_42.5

Cold spell occuring from May 26 2021 to May 30 2021 at 68.5°N 212.5°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: May 26 2021 to May 30 2021

Statistics over entire affected area:

  • Mean temperature anomaly: -8.6 °C
  • Mean temperature: -0.6 °C
  • Minimum temperature anomaly: -12.6 °C
  • Minimum temperature: -13.1 °C

Event center: 68.5°N 212.5°E

Area affected: 227269 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_2021-May-26_to_2021-May-30_212.5_68.5