Category: Cold spells affecting United States

Cold spell occuring from December 03 2021 to December 11 2021 at 18.5°N 188.5°E

Download data: JSON

Event type: Cold spell

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

  • United States

Duration: 9 days

Time span: December 03 2021 to December 11 2021

Statistics over entire affected area:

  • Mean temperature anomaly: -1.9 °C
  • Mean temperature: 23.3 °C
  • Minimum temperature anomaly: -5.7 °C
  • Minimum temperature: 16.8 °C

Event center: 18.5°N 188.5°E

Area affected: 4302869 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-Dec-03_to_2021-Dec-11_188.5_18.5

Cold spell occuring from November 01 2021 to November 04 2021 at 50.0°N 177.5°E

Download data: JSON

Event type: Cold spell

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

  • United States

Duration: 4 days

Time span: November 01 2021 to November 04 2021

Statistics over entire affected area:

  • Mean temperature anomaly: -2.4 °C
  • Mean temperature: 3.4 °C
  • Minimum temperature anomaly: -3.6 °C
  • Minimum temperature: 0.3 °C

Event center: 50.0°N 177.5°E

Area affected: 97515 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-Nov-01_to_2021-Nov-04_177.5_50.0

Cold spell occuring from October 18 2021 to October 23 2021 at 33.5°N 240.5°E

Download data: JSON

Event type: Cold spell

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

  • Mexico
  • United States

Duration: 6 days

Time span: October 18 2021 to October 23 2021

Statistics over entire affected area:

  • Mean temperature anomaly: -3.4 °C
  • Mean temperature: 15.4 °C
  • Minimum temperature anomaly: -7.7 °C
  • Minimum temperature: 11.1 °C

Event center: 33.5°N 240.5°E

Area affected: 113168 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-Oct-18_to_2021-Oct-23_240.5_33.5

Cold spell occuring from October 14 2021 to October 24 2021 at 53.0°N 218.5°E

Download data: JSON

Event type: Cold spell

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

  • Canada
  • United States

Duration: 11 days

Time span: October 14 2021 to October 24 2021

Statistics over entire affected area:

  • Mean temperature anomaly: -2.7 °C
  • Mean temperature: 7.1 °C
  • Minimum temperature anomaly: -11.9 °C
  • Minimum temperature: -16.4 °C

Event center: 53.0°N 218.5°E

Area affected: 994681 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-Oct-14_to_2021-Oct-24_218.5_53.0

Cold spell occuring from October 09 2021 to October 17 2021 at 38.0°N 248.0°E

Download data: JSON

Event type: Cold spell

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

  • Mexico
  • United States

Duration: 9 days

Time span: October 09 2021 to October 17 2021

Statistics over entire affected area:

  • Mean temperature anomaly: -7.3 °C
  • Mean temperature: 4.6 °C
  • Minimum temperature anomaly: -14.7 °C
  • Minimum temperature: -10.2 °C

Event center: 38.0°N 248.0°E

Area affected: 1856861 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-Oct-09_to_2021-Oct-17_248.0_38.0

Cold spell occuring from October 06 2021 to October 09 2021 at 47.0°N 237.0°E

Download data: JSON

Event type: Cold spell

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

  • Canada
  • United States

Duration: 4 days

Time span: October 06 2021 to October 09 2021

Statistics over entire affected area:

  • Mean temperature anomaly: -3.5 °C
  • Mean temperature: 6.0 °C
  • Minimum temperature anomaly: -5.2 °C
  • Minimum temperature: 0.3 °C

Event center: 47.0°N 237.0°E

Area affected: 55496 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-Oct-06_to_2021-Oct-09_237.0_47.0

Cold spell occuring from October 04 2021 to December 16 2021 at 58.5°N 202.5°E

Download data: JSON

Event type: Cold spell

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

  • Canada
  • China
  • Greenland
  • Japan
  • Russian Federation
  • United States

Duration: 74 days

Time span: October 04 2021 to December 16 2021

Statistics over entire affected area:

  • Mean temperature anomaly: -7.7 °C
  • Mean temperature: -20.2 °C
  • Minimum temperature anomaly: -26.2 °C
  • Minimum temperature: -49.4 °C

Event center: 58.5°N 202.5°E

Area affected: 18095107 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-Oct-04_to_2021-Dec-16_202.5_58.5

Cold spell occuring from October 04 2021 to November 04 2021 at 23.5°N 218.0°E

Download data: JSON

Event type: Cold spell

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

  • Canada
  • United States

Duration: 32 days

Time span: October 04 2021 to November 04 2021

Statistics over entire affected area:

  • Mean temperature anomaly: -1.5 °C
  • Mean temperature: 20.2 °C
  • Minimum temperature anomaly: -9.8 °C
  • Minimum temperature: -10.4 °C

Event center: 23.5°N 218.0°E

Area affected: 3616679 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-Oct-04_to_2021-Nov-04_218.0_23.5

Cold spell occuring from October 01 2021 to October 03 2021 at 64.5°N 186.5°E

Download data: JSON

Event type: Cold spell

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

  • Russian Federation
  • United States

Duration: 3 days

Time span: October 01 2021 to October 03 2021

Statistics over entire affected area:

  • Mean temperature anomaly: -3.9 °C
  • Mean temperature: -0.8 °C
  • Minimum temperature anomaly: -10.0 °C
  • Minimum temperature: -11.1 °C

Event center: 64.5°N 186.5°E

Area affected: 55958 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-Oct-01_to_2021-Oct-03_186.5_64.5

Cold spell occuring from September 24 2021 to October 04 2021 at 32.5°N 251.0°E

Download data: JSON

Event type: Cold spell

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

  • Mexico
  • United States

Duration: 11 days

Time span: September 24 2021 to October 04 2021

Statistics over entire affected area:

  • Mean temperature anomaly: -3.8 °C
  • Mean temperature: 16.3 °C
  • Minimum temperature anomaly: -7.8 °C
  • Minimum temperature: 5.3 °C

Event center: 32.5°N 251.0°E

Area affected: 331305 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-Sep-24_to_2021-Oct-04_251.0_32.5