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: July 31 2021 to August 03 2021

Statistics over entire affected area:

• Mean temperature anomaly: -4.0 °C
• Mean temperature: 20.4 °C
• Minimum temperature anomaly: -5.8 °C
• Minimum temperature: 18.4 °C

Event center: 39.5°N 271.0°E

Area affected: 76629 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_2021-Jul-31_to_2021-Aug-03_271.0_39.5

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: July 30 2021 to August 02 2021

Statistics over entire affected area:

• Mean temperature anomaly: -3.9 °C
• Mean temperature: 24.2 °C
• Minimum temperature anomaly: -5.2 °C
• Minimum temperature: 19.9 °C

Event center: 38.0°N 246.0°E

Area affected: 51772 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_2021-Jul-30_to_2021-Aug-02_246.0_38.0

Download data: JSON

Event type: Cold spell

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

• United States

Duration: 12 days

Time span: July 25 2021 to August 05 2021

Statistics over entire affected area:

• Mean temperature anomaly: -1.8 °C
• Mean temperature: 13.3 °C
• Minimum temperature anomaly: -3.2 °C
• Minimum temperature: 10.7 °C

Event center: 38.0°N 235.5°E

Area affected: 146144 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_2021-Jul-25_to_2021-Aug-05_235.5_38.0

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 19 2021 to July 23 2021

Statistics over entire affected area:

• Mean temperature anomaly: -4.1 °C
• Mean temperature: 24.5 °C
• Minimum temperature anomaly: -5.7 °C
• Minimum temperature: 21.6 °C

Event center: 34.0°N 259.0°E

Area affected: 246069 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_2021-Jul-19_to_2021-Jul-23_259.0_34.0

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: July 12 2021 to July 15 2021

Statistics over entire affected area:

• Mean temperature anomaly: -3.2 °C
• Mean temperature: 26.1 °C
• Minimum temperature anomaly: -4.0 °C
• Minimum temperature: 25.1 °C

Event center: 31.0°N 262.5°E

Area affected: 73890 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_2021-Jul-12_to_2021-Jul-15_262.5_31.0

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: July 07 2021 to July 12 2021

Statistics over entire affected area:

• Mean temperature anomaly: -4.1 °C
• Mean temperature: 19.6 °C
• Minimum temperature anomaly: -6.5 °C
• Minimum temperature: 14.2 °C

Event center: 42.0°N 272.5°E

Area affected: 85620 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_2021-Jul-07_to_2021-Jul-12_272.5_42.0