Category: Cold spells affecting United States

Cold spell occuring from September 27 2023 to October 03 2023 at 31.0°N 244.0°E

Download data: JSON

Event type: Cold spell

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

  • Mexico
  • United States

Duration: 7 days

Time span: September 27 2023 to October 03 2023

Statistics over entire affected area:

  • Mean temperature anomaly: -5.1 °C
  • Mean temperature: 19.8 °C
  • Minimum temperature anomaly: -8.6 °C
  • Minimum temperature: 9.5 °C

Event center: 31.0°N 244.0°E

Area affected: 276913 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-Sep-27_to_2023-Oct-03_244.0_31.0

Cold spell occuring from September 07 2023 to September 11 2023 at 59.0°N 198.5°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: September 07 2023 to September 11 2023

Statistics over entire affected area:

  • Mean temperature anomaly: -2.4 °C
  • Mean temperature: 7.5 °C
  • Minimum temperature anomaly: -3.2 °C
  • Minimum temperature: 6.1 °C

Event center: 59.0°N 198.5°E

Area affected: 85616 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-Sep-07_to_2023-Sep-11_198.5_59.0

Cold spell occuring from September 06 2023 to September 14 2023 at 58.0°N 205.5°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: September 06 2023 to September 14 2023

Statistics over entire affected area:

  • Mean temperature anomaly: -1.9 °C
  • Mean temperature: 8.8 °C
  • Minimum temperature anomaly: -4.3 °C
  • Minimum temperature: 3.0 °C

Event center: 58.0°N 205.5°E

Area affected: 375966 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-Sep-06_to_2023-Sep-14_205.5_58.0

Cold spell occuring from September 01 2023 to September 06 2023 at 34.5°N 245.0°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: September 01 2023 to September 06 2023

Statistics over entire affected area:

  • Mean temperature anomaly: -5.7 °C
  • Mean temperature: 19.7 °C
  • Minimum temperature anomaly: -9.1 °C
  • Minimum temperature: 6.8 °C

Event center: 34.5°N 245.0°E

Area affected: 334520 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-Sep-01_to_2023-Sep-06_245.0_34.5

Cold spell occuring from August 19 2023 to August 25 2023 at 32.0°N 244.5°E

Download data: JSON

Event type: Cold spell

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

  • Mexico
  • United States

Duration: 7 days

Time span: August 19 2023 to August 25 2023

Statistics over entire affected area:

  • Mean temperature anomaly: -5.4 °C
  • Mean temperature: 22.3 °C
  • Minimum temperature anomaly: -13.0 °C
  • Minimum temperature: 8.6 °C

Event center: 32.0°N 244.5°E

Area affected: 757468 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-Aug-19_to_2023-Aug-25_244.5_32.0

Cold spell occuring from August 01 2023 to August 09 2023 at 43.0°N 252.0°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 01 2023 to August 09 2023

Statistics over entire affected area:

  • Mean temperature anomaly: -5.1 °C
  • Mean temperature: 16.3 °C
  • Minimum temperature anomaly: -8.0 °C
  • Minimum temperature: 6.5 °C

Event center: 43.0°N 252.0°E

Area affected: 562871 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-Aug-01_to_2023-Aug-09_252.0_43.0

Cold spell occuring from July 28 2023 to August 04 2023 at 47.5°N 287.5°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: July 28 2023 to August 04 2023

Statistics over entire affected area:

  • Mean temperature anomaly: -4.3 °C
  • Mean temperature: 14.3 °C
  • Minimum temperature anomaly: -6.8 °C
  • Minimum temperature: 8.0 °C

Event center: 47.5°N 287.5°E

Area affected: 838008 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-Jul-28_to_2023-Aug-04_287.5_47.5

Cold spell occuring from July 15 2023 to July 17 2023 at 49.5°N 257.5°E

Download data: JSON

Event type: Cold spell

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

  • Canada
  • United States

Duration: 3 days

Time span: July 15 2023 to July 17 2023

Statistics over entire affected area:

  • Mean temperature anomaly: -4.5 °C
  • Mean temperature: 14.7 °C
  • Minimum temperature anomaly: -5.8 °C
  • Minimum temperature: 13.0 °C

Event center: 49.5°N 257.5°E

Area affected: 86109 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-Jul-15_to_2023-Jul-17_257.5_49.5

Cold spell occuring from July 10 2023 to July 20 2023 at 72.0°N 214.5°E

Download data: JSON

Event type: Cold spell

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

  • United States

Duration: 11 days

Time span: July 10 2023 to July 20 2023

Statistics over entire affected area:

  • Mean temperature anomaly: -1.5 °C
  • Mean temperature: -0.2 °C
  • Minimum temperature anomaly: -2.7 °C
  • Minimum temperature: -0.6 °C

Event center: 72.0°N 214.5°E

Area affected: 118209 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-Jul-10_to_2023-Jul-20_214.5_72.0

Cold spell occuring from July 09 2023 to July 11 2023 at 36.0°N 271.0°E

Download data: JSON

Event type: Cold spell

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

  • United States

Duration: 3 days

Time span: July 09 2023 to July 11 2023

Statistics over entire affected area:

  • Mean temperature anomaly: -3.5 °C
  • Mean temperature: 24.4 °C
  • Minimum temperature anomaly: -4.7 °C
  • Minimum temperature: 22.7 °C

Event center: 36.0°N 271.0°E

Area affected: 63277 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-Jul-09_to_2023-Jul-11_271.0_36.0