Category: Extremes affecting United States

Heat wave occuring from January 21 2020 to January 28 2020 at 48.0°N 272.0°E

Download data: JSON

Event type: Heat wave

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

  • Canada
  • United States

Duration: 8 days

Time span: January 21 2020 to January 28 2020

Statistics over entire affected area:

  • Mean temperature anomaly: 11.1 °C
  • Mean temperature: -0.7 °C
  • Maximum temperature anomaly: 16.1 °C
  • Maximum temperature: 2.0 °C

Event center: 48.0°N 272.0°E

Area affected: 329728 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: Heat_wave_2020-Jan-21_to_2020-Jan-28_272.0_48.0

Heat wave occuring from January 21 2020 to January 28 2020 at 47.0°N 246.5°E

Download data: JSON

Event type: Heat wave

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

  • Canada
  • United States

Duration: 8 days

Time span: January 21 2020 to January 28 2020

Statistics over entire affected area:

  • Mean temperature anomaly: 5.5 °C
  • Mean temperature: 3.8 °C
  • Maximum temperature anomaly: 7.9 °C
  • Maximum temperature: 10.1 °C

Event center: 47.0°N 246.5°E

Area affected: 178922 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: Heat_wave_2020-Jan-21_to_2020-Jan-28_246.5_47.0

Heat wave occuring from January 20 2020 to January 28 2020 at 39.0°N 241.5°E

Download data: JSON

Event type: Heat wave

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

  • United States

Duration: 9 days

Time span: January 20 2020 to January 28 2020

Statistics over entire affected area:

  • Mean temperature anomaly: 6.3 °C
  • Mean temperature: 7.3 °C
  • Maximum temperature anomaly: 9.1 °C
  • Maximum temperature: 15.6 °C

Event center: 39.0°N 241.5°E

Area affected: 88684 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: Heat_wave_2020-Jan-20_to_2020-Jan-28_241.5_39.0

Cold spell occuring from January 19 2020 to January 21 2020 at 41.5°N 265.0°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: January 19 2020 to January 21 2020

Statistics over entire affected area:

  • Mean temperature anomaly: -11.2 °C
  • Mean temperature: -16.9 °C
  • Minimum temperature anomaly: -14.3 °C
  • Minimum temperature: -20.2 °C

Event center: 41.5°N 265.0°E

Area affected: 69305 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_2020-Jan-19_to_2020-Jan-21_265.0_41.5

Heat wave occuring from January 11 2020 to January 21 2020 at 67.0°N 183.0°E

Download data: JSON

Event type: Heat wave

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

  • Canada
  • Russian Federation
  • United States

Duration: 11 days

Time span: January 11 2020 to January 21 2020

Statistics over entire affected area:

  • Mean temperature anomaly: 12.4 °C
  • Mean temperature: -9.5 °C
  • Maximum temperature anomaly: 28.2 °C
  • Maximum temperature: 3.6 °C

Event center: 67.0°N 183.0°E

Area affected: 1933578 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: Heat_wave_2020-Jan-11_to_2020-Jan-21_183.0_67.0

Heat wave occuring from January 09 2020 to January 12 2020 at 54.5°N 195.0°E

Download data: JSON

Event type: Heat wave

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

  • United States

Duration: 4 days

Time span: January 09 2020 to January 12 2020

Statistics over entire affected area:

  • Mean temperature anomaly: 4.8 °C
  • Mean temperature: 3.3 °C
  • Maximum temperature anomaly: 7.1 °C
  • Maximum temperature: 5.1 °C

Event center: 54.5°N 195.0°E

Area affected: 96751 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: Heat_wave_2020-Jan-09_to_2020-Jan-12_195.0_54.5

Heat wave occuring from January 08 2020 to January 13 2020 at 47.0°N 190.5°E

Download data: JSON

Event type: Heat wave

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

  • United States

Duration: 6 days

Time span: January 08 2020 to January 13 2020

Statistics over entire affected area:

  • Mean temperature anomaly: 2.5 °C
  • Mean temperature: 5.5 °C
  • Maximum temperature anomaly: 3.9 °C
  • Maximum temperature: 8.5 °C

Event center: 47.0°N 190.5°E

Area affected: 615545 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: Heat_wave_2020-Jan-08_to_2020-Jan-13_190.5_47.0

Cold spell occuring from January 06 2020 to January 09 2020 at 62.0°N 193.5°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: January 06 2020 to January 09 2020

Statistics over entire affected area:

  • Mean temperature anomaly: -15.2 °C
  • Mean temperature: -28.2 °C
  • Minimum temperature anomaly: -20.6 °C
  • Minimum temperature: -36.2 °C

Event center: 62.0°N 193.5°E

Area affected: 79086 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_2020-Jan-06_to_2020-Jan-09_193.5_62.0

Cold spell occuring from January 05 2020 to January 11 2020 at 61.5°N 204.0°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: January 05 2020 to January 11 2020

Statistics over entire affected area:

  • Mean temperature anomaly: -18.3 °C
  • Mean temperature: -34.1 °C
  • Minimum temperature anomaly: -24.6 °C
  • Minimum temperature: -46.1 °C

Event center: 61.5°N 204.0°E

Area affected: 111641 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_2020-Jan-05_to_2020-Jan-11_204.0_61.5

Cold spell occuring from January 04 2020 to January 08 2020 at 69.5°N 211.5°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: January 04 2020 to January 08 2020

Statistics over entire affected area:

  • Mean temperature anomaly: -13.8 °C
  • Mean temperature: -38.7 °C
  • Minimum temperature anomaly: -19.2 °C
  • Minimum temperature: -44.9 °C

Event center: 69.5°N 211.5°E

Area affected: 87474 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_2020-Jan-04_to_2020-Jan-08_211.5_69.5