Category: Extremes affecting United States

Heat wave occuring from May 25 2015 to June 06 2015 at 41.0°N 294.0°E

Download data: JSON

Event type: Heat wave

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

  • Canada
  • United States

Duration: 13 days

Time span: May 25 2015 to June 06 2015

Statistics over entire affected area:

  • Mean temperature anomaly: 4.3 °C
  • Mean temperature: 18.6 °C
  • Maximum temperature anomaly: 11.2 °C
  • Maximum temperature: 26.8 °C

Event center: 41.0°N 294.0°E

Area affected: 993349 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_2015-May-25_to_2015-Jun-06_294.0_41.0

Cold spell occuring from May 22 2015 to May 25 2015 at 29.0°N 249.5°E

Download data: JSON

Event type: Cold spell

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

  • Mexico
  • United States

Duration: 4 days

Time span: May 22 2015 to May 25 2015

Statistics over entire affected area:

  • Mean temperature anomaly: -4.5 °C
  • Mean temperature: 20.7 °C
  • Minimum temperature anomaly: -6.3 °C
  • Minimum temperature: 15.6 °C

Event center: 29.0°N 249.5°E

Area affected: 111897 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_2015-May-22_to_2015-May-25_249.5_29.0

Cold spell occuring from May 21 2015 to June 02 2015 at 27.5°N 203.5°E

Download data: JSON

Event type: Cold spell

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

  • United States

Duration: 13 days

Time span: May 21 2015 to June 02 2015

Statistics over entire affected area:

  • Mean temperature anomaly: -1.7 °C
  • Mean temperature: 21.1 °C
  • Minimum temperature anomaly: -3.6 °C
  • Minimum temperature: 15.8 °C

Event center: 27.5°N 203.5°E

Area affected: 1317821 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_2015-May-21_to_2015-Jun-02_203.5_27.5

Cold spell occuring from May 17 2015 to May 23 2015 at 38.5°N 259.5°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: May 17 2015 to May 23 2015

Statistics over entire affected area:

  • Mean temperature anomaly: -8.0 °C
  • Mean temperature: 9.2 °C
  • Minimum temperature anomaly: -13.7 °C
  • Minimum temperature: -2.4 °C

Event center: 38.5°N 259.5°E

Area affected: 1531294 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_2015-May-17_to_2015-May-23_259.5_38.5

Heat wave occuring from May 16 2015 to May 20 2015 at 37.5°N 286.0°E

Download data: JSON

Event type: Heat wave

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

  • United States

Duration: 5 days

Time span: May 16 2015 to May 20 2015

Statistics over entire affected area:

  • Mean temperature anomaly: 5.2 °C
  • Mean temperature: 20.6 °C
  • Maximum temperature anomaly: 7.9 °C
  • Maximum temperature: 26.2 °C

Event center: 37.5°N 286.0°E

Area affected: 163266 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_2015-May-16_to_2015-May-20_286.0_37.5

Cold spell occuring from May 15 2015 to May 19 2015 at 33.0°N 248.5°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: May 15 2015 to May 19 2015

Statistics over entire affected area:

  • Mean temperature anomaly: -7.8 °C
  • Mean temperature: 12.3 °C
  • Minimum temperature anomaly: -12.3 °C
  • Minimum temperature: 2.2 °C

Event center: 33.0°N 248.5°E

Area affected: 317163 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_2015-May-15_to_2015-May-19_248.5_33.0

Heat wave occuring from May 14 2015 to May 29 2015 at 26.5°N 267.5°E

Download data: JSON

Event type: Heat wave

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

  • Bahamas
  • United States

Duration: 16 days

Time span: May 14 2015 to May 29 2015

Statistics over entire affected area:

  • Mean temperature anomaly: 1.4 °C
  • Mean temperature: 26.7 °C
  • Maximum temperature anomaly: 3.2 °C
  • Maximum temperature: 29.1 °C

Event center: 26.5°N 267.5°E

Area affected: 1563713 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_2015-May-14_to_2015-May-29_267.5_26.5

Heat wave occuring from May 09 2015 to May 15 2015 at 31.0°N 276.5°E

Download data: JSON

Event type: Heat wave

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

  • United States

Duration: 7 days

Time span: May 09 2015 to May 15 2015

Statistics over entire affected area:

  • Mean temperature anomaly: 3.3 °C
  • Mean temperature: 26.7 °C
  • Maximum temperature anomaly: 5.4 °C
  • Maximum temperature: 28.5 °C

Event center: 31.0°N 276.5°E

Area affected: 151833 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_2015-May-09_to_2015-May-15_276.5_31.0

Cold spell occuring from May 09 2015 to May 12 2015 at 43.0°N 256.5°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: May 09 2015 to May 12 2015

Statistics over entire affected area:

  • Mean temperature anomaly: -8.1 °C
  • Mean temperature: 3.0 °C
  • Minimum temperature anomaly: -12.6 °C
  • Minimum temperature: -2.8 °C

Event center: 43.0°N 256.5°E

Area affected: 177628 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_2015-May-09_to_2015-May-12_256.5_43.0

Heat wave occuring from May 04 2015 to May 13 2015 at 38.5°N 288.5°E

Download data: JSON

Event type: Heat wave

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

  • Canada
  • United States

Duration: 10 days

Time span: May 04 2015 to May 13 2015

Statistics over entire affected area:

  • Mean temperature anomaly: 5.7 °C
  • Mean temperature: 21.1 °C
  • Maximum temperature anomaly: 11.7 °C
  • Maximum temperature: 26.3 °C

Event center: 38.5°N 288.5°E

Area affected: 1877016 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_2015-May-04_to_2015-May-13_288.5_38.5