Category: Extremes affecting Canada

Cold spell occuring from January 29 2023 to February 03 2023 at 43.5°N 247.5°E

Download data: JSON

Event type: Cold spell

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

  • Canada
  • Mexico
  • United States

Duration: 6 days

Time span: January 29 2023 to February 03 2023

Statistics over entire affected area:

  • Mean temperature anomaly: -11.0 °C
  • Mean temperature: -9.8 °C
  • Minimum temperature anomaly: -24.5 °C
  • Minimum temperature: -28.1 °C

Event center: 43.5°N 247.5°E

Area affected: 2631313 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-Jan-29_to_2023-Feb-03_247.5_43.5

Heat wave occuring from January 28 2023 to January 31 2023 at 43.0°N 294.5°E

Download data: JSON

Event type: Heat wave

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

  • Canada

Duration: 4 days

Time span: January 28 2023 to January 31 2023

Statistics over entire affected area:

  • Mean temperature anomaly: 5.8 °C
  • Mean temperature: 7.0 °C
  • Maximum temperature anomaly: 8.7 °C
  • Maximum temperature: 13.8 °C

Event center: 43.0°N 294.5°E

Area affected: 209643 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: Heat_wave_2023-Jan-28_to_2023-Jan-31_294.5_43.0

Cold spell occuring from January 27 2023 to February 01 2023 at 65.5°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: January 27 2023 to February 01 2023

Statistics over entire affected area:

  • Mean temperature anomaly: -10.9 °C
  • Mean temperature: -38.3 °C
  • Minimum temperature anomaly: -15.3 °C
  • Minimum temperature: -45.0 °C

Event center: 65.5°N 292.5°E

Area affected: 106046 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-Jan-27_to_2023-Feb-01_292.5_65.5

Cold spell occuring from January 25 2023 to February 23 2023 at 71.0°N 234.0°E

Download data: JSON

Event type: Cold spell

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

  • Canada
  • United States

Duration: 30 days

Time span: January 25 2023 to February 23 2023

Statistics over entire affected area:

  • Mean temperature anomaly: -8.6 °C
  • Mean temperature: -33.0 °C
  • Minimum temperature anomaly: -19.2 °C
  • Minimum temperature: -44.5 °C

Event center: 71.0°N 234.0°E

Area affected: 833054 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-Jan-25_to_2023-Feb-23_234.0_71.0

Heat wave occuring from January 20 2023 to February 03 2023 at 62.5°N 211.5°E

Download data: JSON

Event type: Heat wave

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

  • Canada
  • United States

Duration: 15 days

Time span: January 20 2023 to February 03 2023

Statistics over entire affected area:

  • Mean temperature anomaly: 12.0 °C
  • Mean temperature: -4.8 °C
  • Maximum temperature anomaly: 23.0 °C
  • Maximum temperature: 8.6 °C

Event center: 62.5°N 211.5°E

Area affected: 774579 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: Heat_wave_2023-Jan-20_to_2023-Feb-03_211.5_62.5

Cold spell occuring from January 14 2023 to January 27 2023 at 71.5°N 275.0°E

Download data: JSON

Event type: Cold spell

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

  • Canada

Duration: 14 days

Time span: January 14 2023 to January 27 2023

Statistics over entire affected area:

  • Mean temperature anomaly: -8.8 °C
  • Mean temperature: -42.4 °C
  • Minimum temperature anomaly: -13.6 °C
  • Minimum temperature: -50.5 °C

Event center: 71.5°N 275.0°E

Area affected: 125468 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-Jan-14_to_2023-Jan-27_275.0_71.5

Heat wave occuring from January 13 2023 to January 29 2023 at 45.0°N 328.5°E

Download data: JSON

Event type: Heat wave

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

  • Canada

Duration: 17 days

Time span: January 13 2023 to January 29 2023

Statistics over entire affected area:

  • Mean temperature anomaly: 6.5 °C
  • Mean temperature: 8.9 °C
  • Maximum temperature anomaly: 18.7 °C
  • Maximum temperature: 20.7 °C

Event center: 45.0°N 328.5°E

Area affected: 3742354 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: Heat_wave_2023-Jan-13_to_2023-Jan-29_328.5_45.0

Heat wave occuring from January 11 2023 to January 19 2023 at 50.0°N 242.5°E

Download data: JSON

Event type: Heat wave

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

  • Canada
  • United States

Duration: 9 days

Time span: January 11 2023 to January 19 2023

Statistics over entire affected area:

  • Mean temperature anomaly: 6.4 °C
  • Mean temperature: 3.7 °C
  • Maximum temperature anomaly: 11.9 °C
  • Maximum temperature: 12.1 °C

Event center: 50.0°N 242.5°E

Area affected: 536694 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: Heat_wave_2023-Jan-11_to_2023-Jan-19_242.5_50.0

Cold spell occuring from January 10 2023 to January 25 2023 at 77.0°N 261.5°E

Download data: JSON

Event type: Cold spell

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

  • Canada
  • Greenland

Duration: 16 days

Time span: January 10 2023 to January 25 2023

Statistics over entire affected area:

  • Mean temperature anomaly: -10.3 °C
  • Mean temperature: -37.1 °C
  • Minimum temperature anomaly: -18.8 °C
  • Minimum temperature: -49.5 °C

Event center: 77.0°N 261.5°E

Area affected: 773936 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-Jan-10_to_2023-Jan-25_261.5_77.0

Cold spell occuring from January 08 2023 to January 20 2023 at 83.0°N 308.0°E

Download data: JSON

Event type: Cold spell

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

  • Canada
  • Greenland

Duration: 13 days

Time span: January 08 2023 to January 20 2023

Statistics over entire affected area:

  • Mean temperature anomaly: -7.4 °C
  • Mean temperature: -34.2 °C
  • Minimum temperature anomaly: -12.3 °C
  • Minimum temperature: -43.8 °C

Event center: 83.0°N 308.0°E

Area affected: 101320 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-Jan-08_to_2023-Jan-20_308.0_83.0