Category: Cold spells affecting United States

25 cold spells identified in United States since 2020

Cold spell occuring from September 03 2011 to September 20 2011 at 29.5°N 270.0°E

Download data: JSON

Event type: Cold spell

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

  • Mexico
  • United States

Duration: 18 days

Time span: September 03 2011 to September 20 2011

Statistics over entire affected area:

  • Mean temperature anomaly: -3.9 °C
  • Mean temperature: 21.5 °C
  • Minimum temperature anomaly: -10.9 °C
  • Minimum temperature: 12.0 °C

Event center: 29.5°N 270.0°E

Area affected: 2599087 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_2011-Sep-03_to_2011-Sep-20_270.0_29.5

Cold spell occuring from August 30 2011 to September 05 2011 at 33.0°N 240.0°E

Download data: JSON

Event type: Cold spell

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

  • United States

Duration: 7 days

Time span: August 30 2011 to September 05 2011

Statistics over entire affected area:

  • Mean temperature anomaly: -2.2 °C
  • Mean temperature: 16.3 °C
  • Minimum temperature anomaly: -3.9 °C
  • Minimum temperature: 12.8 °C

Event center: 33.0°N 240.0°E

Area affected: 133166 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_2011-Aug-30_to_2011-Sep-05_240.0_33.0

Cold spell occuring from August 29 2011 to September 03 2011 at 36.5°N 285.0°E

Download data: JSON

Event type: Cold spell

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

  • United States

Duration: 6 days

Time span: August 29 2011 to September 03 2011

Statistics over entire affected area:

  • Mean temperature anomaly: -2.5 °C
  • Mean temperature: 21.9 °C
  • Minimum temperature anomaly: -4.0 °C
  • Minimum temperature: 19.8 °C

Event center: 36.5°N 285.0°E

Area affected: 123263 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_2011-Aug-29_to_2011-Sep-03_285.0_36.5

Cold spell occuring from August 21 2011 to August 27 2011 at 61.0°N 188.5°E

Download data: JSON

Event type: Cold spell

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

  • Russian Federation
  • United States

Duration: 7 days

Time span: August 21 2011 to August 27 2011

Statistics over entire affected area:

  • Mean temperature anomaly: -2.8 °C
  • Mean temperature: 6.7 °C
  • Minimum temperature anomaly: -5.3 °C
  • Minimum temperature: 1.6 °C

Event center: 61.0°N 188.5°E

Area affected: 490245 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_2011-Aug-21_to_2011-Aug-27_188.5_61.0

Cold spell occuring from August 18 2011 to August 22 2011 at 21.5°N 201.0°E

Download data: JSON

Event type: Cold spell

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

  • United States

Duration: 5 days

Time span: August 18 2011 to August 22 2011

Statistics over entire affected area:

  • Mean temperature anomaly: -1.0 °C
  • Mean temperature: 24.5 °C
  • Minimum temperature anomaly: -1.5 °C
  • Minimum temperature: 23.2 °C

Event center: 21.5°N 201.0°E

Area affected: 94744 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_2011-Aug-18_to_2011-Aug-22_201.0_21.5

Cold spell occuring from August 10 2011 to August 17 2011 at 46.0°N 223.0°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: August 10 2011 to August 17 2011

Statistics over entire affected area:

  • Mean temperature anomaly: -2.1 °C
  • Mean temperature: 12.8 °C
  • Minimum temperature anomaly: -7.1 °C
  • Minimum temperature: 0.7 °C

Event center: 46.0°N 223.0°E

Area affected: 733147 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_2011-Aug-10_to_2011-Aug-17_223.0_46.0

Cold spell occuring from August 06 2011 to August 19 2011 at 55.5°N 232.0°E

Download data: JSON

Event type: Cold spell

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

  • Canada
  • United States

Duration: 14 days

Time span: August 06 2011 to August 19 2011

Statistics over entire affected area:

  • Mean temperature anomaly: -4.3 °C
  • Mean temperature: 8.1 °C
  • Minimum temperature anomaly: -8.3 °C
  • Minimum temperature: 0.5 °C

Event center: 55.5°N 232.0°E

Area affected: 474303 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_2011-Aug-06_to_2011-Aug-19_232.0_55.5

Cold spell occuring from August 05 2011 to August 13 2011 at 21.5°N 197.5°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: August 05 2011 to August 13 2011

Statistics over entire affected area:

  • Mean temperature anomaly: -0.8 °C
  • Mean temperature: 24.9 °C
  • Minimum temperature anomaly: -1.2 °C
  • Minimum temperature: 23.2 °C

Event center: 21.5°N 197.5°E

Area affected: 131554 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_2011-Aug-05_to_2011-Aug-13_197.5_21.5

Cold spell occuring from July 26 2011 to August 01 2011 at 54.5°N 231.5°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: July 26 2011 to August 01 2011

Statistics over entire affected area:

  • Mean temperature anomaly: -3.3 °C
  • Mean temperature: 9.5 °C
  • Minimum temperature anomaly: -4.9 °C
  • Minimum temperature: 5.9 °C

Event center: 54.5°N 231.5°E

Area affected: 83985 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_2011-Jul-26_to_2011-Aug-01_231.5_54.5

Cold spell occuring from July 19 2011 to July 23 2011 at 54.0°N 240.5°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: July 19 2011 to July 23 2011

Statistics over entire affected area:

  • Mean temperature anomaly: -5.2 °C
  • Mean temperature: 10.5 °C
  • Minimum temperature anomaly: -8.7 °C
  • Minimum temperature: 2.3 °C

Event center: 54.0°N 240.5°E

Area affected: 647300 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_2011-Jul-19_to_2011-Jul-23_240.5_54.0