Category: Cold spells affecting United States

Cold spell occuring from May 10 2025 to May 12 2025 at 29.5°N 267.0°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: May 10 2025 to May 12 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -3.2 °C
  • Mean temperature: 20.8 °C
  • Minimum temperature anomaly: -7.3 °C
  • Minimum temperature: 15.8 °C

Event center: 29.5°N 267.0°E

Area affected: 201940 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_2025-May-10_to_2025-May-12_267.0_29.5

Cold spell occuring from May 05 2025 to May 07 2025 at 33.5°N 248.0°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: May 05 2025 to May 07 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -6.7 °C
  • Mean temperature: 16.7 °C
  • Minimum temperature anomaly: -7.9 °C
  • Minimum temperature: 11.9 °C

Event center: 33.5°N 248.0°E

Area affected: 53443 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_2025-May-05_to_2025-May-07_248.0_33.5

Cold spell occuring from May 05 2025 to May 09 2025 at 37.0°N 254.0°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: May 05 2025 to May 09 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -6.9 °C
  • Mean temperature: 7.9 °C
  • Minimum temperature anomaly: -10.4 °C
  • Minimum temperature: -0.2 °C

Event center: 37.0°N 254.0°E

Area affected: 151116 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_2025-May-05_to_2025-May-09_254.0_37.0

Cold spell occuring from April 26 2025 to April 28 2025 at 35.0°N 242.0°E

Download data: JSON

Event type: Cold spell

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

  • Mexico
  • United States

Duration: 3 days

Time span: April 26 2025 to April 28 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -6.4 °C
  • Mean temperature: 13.9 °C
  • Minimum temperature anomaly: -8.9 °C
  • Minimum temperature: 6.7 °C

Event center: 35.0°N 242.0°E

Area affected: 58641 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_2025-Apr-26_to_2025-Apr-28_242.0_35.0

Cold spell occuring from April 18 2025 to May 23 2025 at 19.5°N 247.0°E

Download data: JSON

Event type: Cold spell

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

  • Mexico
  • United States

Duration: 36 days

Time span: April 18 2025 to May 23 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -2.0 °C
  • Mean temperature: 20.7 °C
  • Minimum temperature anomaly: -8.5 °C
  • Minimum temperature: 8.3 °C

Event center: 19.5°N 247.0°E

Area affected: 1989074 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_2025-Apr-18_to_2025-May-23_247.0_19.5

Cold spell occuring from April 07 2025 to April 12 2025 at 62.0°N 202.0°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: April 07 2025 to April 12 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -9.0 °C
  • Mean temperature: -17.5 °C
  • Minimum temperature anomaly: -13.9 °C
  • Minimum temperature: -26.1 °C

Event center: 62.0°N 202.0°E

Area affected: 373147 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_2025-Apr-07_to_2025-Apr-12_202.0_62.0

Cold spell occuring from April 02 2025 to April 06 2025 at 37.0°N 253.5°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: April 02 2025 to April 06 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -6.3 °C
  • Mean temperature: -6.7 °C
  • Minimum temperature anomaly: -9.1 °C
  • Minimum temperature: -11.3 °C

Event center: 37.0°N 253.5°E

Area affected: 104923 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_2025-Apr-02_to_2025-Apr-06_253.5_37.0

Cold spell occuring from March 21 2025 to April 15 2025 at 13.0°N 242.0°E

Download data: JSON

Event type: Cold spell

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

  • Belize
  • El Salvador
  • Guatemala
  • Honduras
  • Mexico
  • Nicaragua
  • United States

Duration: 26 days

Time span: March 21 2025 to April 15 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -3.0 °C
  • Mean temperature: 19.5 °C
  • Minimum temperature anomaly: -15.0 °C
  • Minimum temperature: -6.7 °C

Event center: 13.0°N 242.0°E

Area affected: 4345856 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_2025-Mar-21_to_2025-Apr-15_242.0_13.0

Cold spell occuring from March 18 2025 to March 28 2025 at 60.0°N 191.5°E

Download data: JSON

Event type: Cold spell

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

  • Russian Federation
  • United States

Duration: 11 days

Time span: March 18 2025 to March 28 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -9.0 °C
  • Mean temperature: -21.9 °C
  • Minimum temperature anomaly: -14.6 °C
  • Minimum temperature: -33.7 °C

Event center: 60.0°N 191.5°E

Area affected: 731065 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_2025-Mar-18_to_2025-Mar-28_191.5_60.0

Cold spell occuring from January 29 2025 to February 24 2025 at 52.0°N 232.0°E

Download data: JSON

Event type: Cold spell

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

  • Canada
  • Mexico
  • United States

Duration: 27 days

Time span: January 29 2025 to February 24 2025

Statistics over entire affected area:

  • Mean temperature anomaly: -10.6 °C
  • Mean temperature: -11.3 °C
  • Minimum temperature anomaly: -26.9 °C
  • Minimum temperature: -42.6 °C

Event center: 52.0°N 232.0°E

Area affected: 12758374 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_2025-Jan-29_to_2025-Feb-24_232.0_52.0