Category: Cold spells affecting Canada

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 27 2021 to July 30 2021

Statistics over entire affected area:

• Mean temperature anomaly: -0.6 °C
• Mean temperature: 0.1 °C
• Minimum temperature anomaly: -1.1 °C
• Minimum temperature: -0.4 °C

Event center: 86.0°N 345.5°E

Area affected: 164136 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-27_to_2021-Jul-30_345.5_86.0

Download data: JSON

Event type: Cold spell

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

• Canada

Duration: 17 days

Time span: July 22 2021 to August 07 2021

Statistics over entire affected area:

• Mean temperature anomaly: -5.1 °C
• Mean temperature: 4.1 °C
• Minimum temperature anomaly: -9.6 °C
• Minimum temperature: -2.0 °C

Event center: 66.0°N 282.0°E

Area affected: 981487 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-22_to_2021-Aug-07_282.0_66.0

Download data: JSON

Event type: Cold spell

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

• Canada

Duration: 6 days

Time span: July 15 2021 to July 20 2021

Statistics over entire affected area:

• Mean temperature anomaly: -5.5 °C
• Mean temperature: 10.1 °C
• Minimum temperature anomaly: -9.7 °C
• Minimum temperature: -0.9 °C

Event center: 58.5°N 238.5°E

Area affected: 827826 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-15_to_2021-Jul-20_238.5_58.5

Download data: JSON

Event type: Cold spell

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

• Canada

Duration: 6 days

Time span: July 12 2021 to July 17 2021

Statistics over entire affected area:

• Mean temperature anomaly: -5.8 °C
• Mean temperature: 2.4 °C
• Minimum temperature anomaly: -9.0 °C
• Minimum temperature: 0.1 °C

Event center: 71.5°N 236.0°E

Area affected: 265124 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-12_to_2021-Jul-17_236.0_71.5

Download data: JSON

Event type: Cold spell

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

• Canada

Duration: 9 days

Time span: July 09 2021 to July 17 2021

Statistics over entire affected area:

• Mean temperature anomaly: -3.6 °C
• Mean temperature: 1.5 °C
• Minimum temperature anomaly: -6.3 °C
• Minimum temperature: -3.9 °C

Event center: 74.5°N 264.5°E

Area affected: 120786 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-09_to_2021-Jul-17_264.5_74.5

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 07 2021 to July 09 2021

Statistics over entire affected area:

• Mean temperature anomaly: -4.9 °C
• Mean temperature: 14.4 °C
• Minimum temperature anomaly: -7.0 °C
• Minimum temperature: 11.5 °C

Event center: 45.5°N 279.5°E

Area affected: 86370 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-07_to_2021-Jul-09_279.5_45.5

Download data: JSON

Event type: Cold spell

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

• Canada

Duration: 11 days

Time span: July 03 2021 to July 13 2021

Statistics over entire affected area:

• Mean temperature anomaly: -1.8 °C
• Mean temperature: -0.4 °C
• Minimum temperature anomaly: -3.4 °C
• Minimum temperature: -2.3 °C

Event center: 74.0°N 294.5°E

Area affected: 112463 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-03_to_2021-Jul-13_294.5_74.0

Download data: JSON

Event type: Cold spell

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

• Canada

Duration: 11 days

Time span: July 01 2021 to July 11 2021

Statistics over entire affected area:

• Mean temperature anomaly: -3.7 °C
• Mean temperature: 3.7 °C
• Minimum temperature anomaly: -7.1 °C
• Minimum temperature: -0.6 °C

Event center: 64.0°N 287.0°E

Area affected: 134087 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-11_287.0_64.0