Category: Cold spells affecting Canada

(ongoing) Cold spell occuring from April 11 2026 to May 03 2026 at 76.0°N 279.0°E

Download data: JSON

Event type: Cold spell

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

  • Canada
  • Greenland
  • United States

Duration: 23 days

Time span: April 11 2026 to May 03 2026

Statistics over entire affected area:

  • Mean temperature anomaly: -7.8 °C
  • Mean temperature: -20.5 °C
  • Minimum temperature anomaly: -16.5 °C
  • Minimum temperature: -37.6 °C

Event center: 76.0°N 279.0°E

Area affected: 5447322 km$^2$


Fig. 1: unavailable since event is ongoing.



Fig. 3: Maps illustrating the evolution of standardized temperature anomalies during the event.

Event ID: Cold_spell_2026-Apr-11_to_2026-May-03_279.0_76.0

Cold spell occuring from April 26 2026 to May 01 2026 at 65.5°N 296.0°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: April 26 2026 to May 01 2026

Statistics over entire affected area:

  • Mean temperature anomaly: -5.8 °C
  • Mean temperature: -12.9 °C
  • Minimum temperature anomaly: -8.3 °C
  • Minimum temperature: -18.4 °C

Event center: 65.5°N 296.0°E

Area affected: 84285 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_2026-Apr-26_to_2026-May-01_296.0_65.5

Cold spell occuring from April 26 2026 to May 01 2026 at 65.0°N 292.5°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: April 26 2026 to May 01 2026

Statistics over entire affected area:

  • Mean temperature anomaly: -8.1 °C
  • Mean temperature: -17.7 °C
  • Minimum temperature anomaly: -11.1 °C
  • Minimum temperature: -22.9 °C

Event center: 65.0°N 292.5°E

Area affected: 73320 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_2026-Apr-26_to_2026-May-01_292.5_65.0

Cold spell occuring from April 23 2026 to April 30 2026 at 53.0°N 247.5°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: April 23 2026 to April 30 2026

Statistics over entire affected area:

  • Mean temperature anomaly: -8.3 °C
  • Mean temperature: -2.9 °C
  • Minimum temperature anomaly: -16.2 °C
  • Minimum temperature: -10.5 °C

Event center: 53.0°N 247.5°E

Area affected: 1540760 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_2026-Apr-23_to_2026-Apr-30_247.5_53.0

Cold spell occuring from April 20 2026 to April 26 2026 at 39.0°N 295.0°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: April 20 2026 to April 26 2026

Statistics over entire affected area:

  • Mean temperature anomaly: -4.3 °C
  • Mean temperature: -0.4 °C
  • Minimum temperature anomaly: -10.0 °C
  • Minimum temperature: -11.6 °C

Event center: 39.0°N 295.0°E

Area affected: 767580 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_2026-Apr-20_to_2026-Apr-26_295.0_39.0

Cold spell occuring from April 14 2026 to April 17 2026 at 58.0°N 281.0°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: April 14 2026 to April 17 2026

Statistics over entire affected area:

  • Mean temperature anomaly: -7.4 °C
  • Mean temperature: -18.4 °C
  • Minimum temperature anomaly: -10.7 °C
  • Minimum temperature: -25.4 °C

Event center: 58.0°N 281.0°E

Area affected: 359998 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_2026-Apr-14_to_2026-Apr-17_281.0_58.0

Cold spell occuring from April 09 2026 to April 14 2026 at 64.0°N 261.0°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: April 09 2026 to April 14 2026

Statistics over entire affected area:

  • Mean temperature anomaly: -9.3 °C
  • Mean temperature: -25.6 °C
  • Minimum temperature anomaly: -12.5 °C
  • Minimum temperature: -28.9 °C

Event center: 64.0°N 261.0°E

Area affected: 74894 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_2026-Apr-09_to_2026-Apr-14_261.0_64.0

Cold spell occuring from April 07 2026 to April 13 2026 at 64.5°N 277.0°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: April 07 2026 to April 13 2026

Statistics over entire affected area:

  • Mean temperature anomaly: -7.4 °C
  • Mean temperature: -26.3 °C
  • Minimum temperature anomaly: -11.4 °C
  • Minimum temperature: -32.1 °C

Event center: 64.5°N 277.0°E

Area affected: 69407 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_2026-Apr-07_to_2026-Apr-13_277.0_64.5

Cold spell occuring from April 07 2026 to April 09 2026 at 55.0°N 294.5°E

Download data: JSON

Event type: Cold spell

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

  • Canada

Duration: 3 days

Time span: April 07 2026 to April 09 2026

Statistics over entire affected area:

  • Mean temperature anomaly: -8.6 °C
  • Mean temperature: -16.0 °C
  • Minimum temperature anomaly: -11.3 °C
  • Minimum temperature: -24.5 °C

Event center: 55.0°N 294.5°E

Area affected: 242254 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_2026-Apr-07_to_2026-Apr-09_294.5_55.0

Cold spell occuring from April 06 2026 to April 12 2026 at 58.0°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: April 06 2026 to April 12 2026

Statistics over entire affected area:

  • Mean temperature anomaly: -6.4 °C
  • Mean temperature: -18.8 °C
  • Minimum temperature anomaly: -7.9 °C
  • Minimum temperature: -21.6 °C

Event center: 58.0°N 281.5°E

Area affected: 214400 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_2026-Apr-06_to_2026-Apr-12_281.5_58.0