Category: Cold spells affecting United States

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: September 21 2012 to September 24 2012

Statistics over entire affected area:

• Mean temperature anomaly: -6.4 °C
• Mean temperature: 10.3 °C
• Minimum temperature anomaly: -7.7 °C
• Minimum temperature: 7.9 °C

Event center: 42.5°N 270.0°E

Area affected: 127392 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_2012-Sep-21_to_2012-Sep-24_270.0_42.5

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: September 10 2012 to September 13 2012

Statistics over entire affected area:

• Mean temperature anomaly: -3.4 °C
• Mean temperature: 21.0 °C
• Minimum temperature anomaly: -5.3 °C
• Minimum temperature: 18.0 °C

Event center: 35.5°N 282.5°E

Area affected: 136363 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_2012-Sep-10_to_2012-Sep-13_282.5_35.5

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: August 22 2012 to August 24 2012

Statistics over entire affected area:

• Mean temperature anomaly: -4.9 °C
• Mean temperature: 25.0 °C
• Minimum temperature anomaly: -8.6 °C
• Minimum temperature: 18.9 °C

Event center: 36.0°N 245.0°E

Area affected: 63227 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_2012-Aug-22_to_2012-Aug-24_245.0_36.0

Download data: JSON

Event type: Cold spell

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

• United States

Duration: 10 days

Time span: August 18 2012 to August 27 2012

Statistics over entire affected area:

• Mean temperature anomaly: -2.3 °C
• Mean temperature: 24.7 °C
• Minimum temperature anomaly: -4.4 °C
• Minimum temperature: 20.4 °C

Event center: 30.5°N 278.5°E

Area affected: 623734 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_2012-Aug-18_to_2012-Aug-27_278.5_30.5

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: August 17 2012 to August 19 2012

Statistics over entire affected area:

• Mean temperature anomaly: -5.3 °C
• Mean temperature: 16.9 °C
• Minimum temperature anomaly: -7.0 °C
• Minimum temperature: 14.5 °C

Event center: 42.0°N 263.5°E

Area affected: 195690 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_2012-Aug-17_to_2012-Aug-19_263.5_42.0

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: July 15 2012 to July 19 2012

Statistics over entire affected area:

• Mean temperature anomaly: -1.6 °C
• Mean temperature: 25.9 °C
• Minimum temperature anomaly: -2.7 °C
• Minimum temperature: 24.4 °C

Event center: 29.5°N 280.5°E

Area affected: 210677 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_2012-Jul-15_to_2012-Jul-19_280.5_29.5