Category: Extremes affecting Northern Mariana Islands

Download data: JSON

Event type: Cold spell

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

• Northern Mariana Islands

Duration: 5 days

Time span: August 11 2025 to August 15 2025

Statistics over entire affected area:

• Mean temperature anomaly: -1.0 °C
• Mean temperature: 26.6 °C
• Minimum temperature anomaly: -1.5 °C
• Minimum temperature: 26.1 °C

Event center: 20.0°N 150.5°E

Area affected: 187189 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-Aug-11_to_2025-Aug-15_150.5_20.0

Download data: JSON

Event type: Cold spell

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

• Northern Mariana Islands

Duration: 17 days

Time span: June 25 2025 to July 11 2025

Statistics over entire affected area:

• Mean temperature anomaly: -1.1 °C
• Mean temperature: 26.7 °C
• Minimum temperature anomaly: -1.8 °C
• Minimum temperature: 25.8 °C

Event center: 22.5°N 149.0°E

Area affected: 1017796 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-Jun-25_to_2025-Jul-11_149.0_22.5

Download data: JSON

Event type: Cold spell

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

• Northern Mariana Islands

Duration: 14 days

Time span: June 18 2025 to July 01 2025

Statistics over entire affected area:

• Mean temperature anomaly: -1.2 °C
• Mean temperature: 26.7 °C
• Minimum temperature anomaly: -2.1 °C
• Minimum temperature: 25.7 °C

Event center: 22.0°N 147.0°E

Area affected: 1073181 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-Jun-18_to_2025-Jul-01_147.0_22.0

Download data: JSON

Event type: Cold spell

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

• Northern Mariana Islands

Duration: 5 days

Time span: March 21 2024 to March 25 2024

Statistics over entire affected area:

• Mean temperature anomaly: -2.1 °C
• Mean temperature: 21.5 °C
• Minimum temperature anomaly: -3.5 °C
• Minimum temperature: 16.1 °C

Event center: 21.0°N 154.0°E

Area affected: 1242069 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_2024-Mar-21_to_2024-Mar-25_154.0_21.0

Download data: JSON

Event type: Cold spell

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

• Northern Mariana Islands

Duration: 9 days

Time span: January 15 2024 to January 23 2024

Statistics over entire affected area:

• Mean temperature anomaly: -1.7 °C
• Mean temperature: 23.2 °C
• Minimum temperature anomaly: -2.7 °C
• Minimum temperature: 20.1 °C

Event center: 18.5°N 162.0°E

Area affected: 1554866 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_2024-Jan-15_to_2024-Jan-23_162.0_18.5

Download data: JSON

Event type: Cold spell

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

• Northern Mariana Islands

Duration: 15 days

Time span: April 25 2023 to May 09 2023

Statistics over entire affected area:

• Mean temperature anomaly: -1.1 °C
• Mean temperature: 24.9 °C
• Minimum temperature anomaly: -2.8 °C
• Minimum temperature: 21.9 °C

Event center: 21.0°N 165.5°E

Area affected: 2200025 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_2023-Apr-25_to_2023-May-09_165.5_21.0

Download data: JSON

Event type: Cold spell

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

• Northern Mariana Islands

Duration: 3 days

Time span: April 04 2023 to April 06 2023

Statistics over entire affected area:

• Mean temperature anomaly: -1.9 °C
• Mean temperature: 23.1 °C
• Minimum temperature anomaly: -3.2 °C
• Minimum temperature: 19.6 °C

Event center: 20.5°N 146.5°E

Area affected: 376199 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_2023-Apr-04_to_2023-Apr-06_146.5_20.5

Download data: JSON

Event type: Cold spell

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

• Northern Mariana Islands

Duration: 6 days

Time span: September 16 2022 to September 21 2022

Statistics over entire affected area:

• Mean temperature anomaly: -1.1 °C
• Mean temperature: 26.6 °C
• Minimum temperature anomaly: -1.8 °C
• Minimum temperature: 25.8 °C

Event center: 18.5°N 142.5°E

Area affected: 397429 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_2022-Sep-16_to_2022-Sep-21_142.5_18.5