Category: Extremes affecting Russian Federation

Download data: JSON

Event type: Cold spell

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

• Russian Federation

Duration: 8 days

Time span: December 11 2025 to December 18 2025

Statistics over entire affected area:

• Mean temperature anomaly: -15.0 °C
• Mean temperature: -35.0 °C
• Minimum temperature anomaly: -21.5 °C
• Minimum temperature: -41.9 °C

Event center: 71.0°N 77.0°E

Area affected: 219064 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-Dec-11_to_2025-Dec-18_77.0_71.0

Download data: JSON

Event type: Cold spell

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

• Russian Federation

Duration: 6 days

Time span: December 10 2025 to December 15 2025

Statistics over entire affected area:

• Mean temperature anomaly: -10.5 °C
• Mean temperature: -35.5 °C
• Minimum temperature anomaly: -17.7 °C
• Minimum temperature: -46.9 °C

Event center: 76.5°N 100.5°E

Area affected: 101850 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-Dec-10_to_2025-Dec-15_100.5_76.5

Download data: JSON

Event type: Cold spell

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

• Russian Federation

Duration: 8 days

Time span: December 10 2025 to December 17 2025

Statistics over entire affected area:

• Mean temperature anomaly: -14.6 °C
• Mean temperature: -44.7 °C
• Minimum temperature anomaly: -22.6 °C
• Minimum temperature: -53.5 °C

Event center: 67.0°N 104.0°E

Area affected: 843389 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-Dec-10_to_2025-Dec-17_104.0_67.0

Download data: JSON

Event type: Cold spell

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

• Russian Federation

Duration: 3 days

Time span: December 08 2025 to December 10 2025

Statistics over entire affected area:

• Mean temperature anomaly: -16.0 °C
• Mean temperature: -30.8 °C
• Minimum temperature anomaly: -21.5 °C
• Minimum temperature: -36.9 °C

Event center: 55.5°N 91.0°E

Area affected: 208091 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-Dec-08_to_2025-Dec-10_91.0_55.5

Download data: JSON

Event type: Cold spell

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

• Russian Federation

Duration: 3 days

Time span: December 07 2025 to December 09 2025

Statistics over entire affected area:

• Mean temperature anomaly: -16.4 °C
• Mean temperature: -33.5 °C
• Minimum temperature anomaly: -21.2 °C
• Minimum temperature: -39.5 °C

Event center: 58.0°N 89.5°E

Area affected: 51335 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-Dec-07_to_2025-Dec-09_89.5_58.0

Download data: JSON

Event type: Cold spell

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

• Russian Federation

Duration: 6 days

Time span: December 03 2025 to December 08 2025

Statistics over entire affected area:

• Mean temperature anomaly: -12.3 °C
• Mean temperature: -37.6 °C
• Minimum temperature anomaly: -20.7 °C
• Minimum temperature: -44.9 °C

Event center: 70.0°N 89.5°E

Area affected: 62622 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-Dec-03_to_2025-Dec-08_89.5_70.0