Category: Extremes affecting Finland

Cold spell occuring from July 21 2023 to July 25 2023 at 64.5°N 32.5°E

Download data: JSON

Event type: Cold spell

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

  • Finland
  • Russian Federation

Duration: 5 days

Time span: July 21 2023 to July 25 2023

Statistics over entire affected area:

  • Mean temperature anomaly: -4.6 °C
  • Mean temperature: 12.0 °C
  • Minimum temperature anomaly: -6.1 °C
  • Minimum temperature: 10.5 °C

Event center: 64.5°N 32.5°E

Area affected: 104534 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-Jul-21_to_2023-Jul-25_32.5_64.5

Cold spell occuring from July 20 2023 to July 25 2023 at 68.5°N 24.5°E

Download data: JSON

Event type: Cold spell

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

  • Finland
  • Norway
  • Sweden

Duration: 6 days

Time span: July 20 2023 to July 25 2023

Statistics over entire affected area:

  • Mean temperature anomaly: -4.7 °C
  • Mean temperature: 10.2 °C
  • Minimum temperature anomaly: -6.0 °C
  • Minimum temperature: 7.8 °C

Event center: 68.5°N 24.5°E

Area affected: 125726 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-Jul-20_to_2023-Jul-25_24.5_68.5

Cold spell occuring from June 01 2023 to June 04 2023 at 56.5°N 31.0°E

Download data: JSON

Event type: Cold spell

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

  • Finland
  • Latvia
  • Russian Federation

Duration: 4 days

Time span: June 01 2023 to June 04 2023

Statistics over entire affected area:

  • Mean temperature anomaly: -6.1 °C
  • Mean temperature: 7.8 °C
  • Minimum temperature anomaly: -9.4 °C
  • Minimum temperature: 4.8 °C

Event center: 56.5°N 31.0°E

Area affected: 283426 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-Jun-01_to_2023-Jun-04_31.0_56.5

Heat wave occuring from May 21 2023 to May 26 2023 at 59.0°N 19.5°E

Download data: JSON

Event type: Heat wave

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

  • Estonia
  • Finland
  • Sweden

Duration: 6 days

Time span: May 21 2023 to May 26 2023

Statistics over entire affected area:

  • Mean temperature anomaly: 3.5 °C
  • Mean temperature: 12.8 °C
  • Maximum temperature anomaly: 6.3 °C
  • Maximum temperature: 16.6 °C

Event center: 59.0°N 19.5°E

Area affected: 77172 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_2023-May-21_to_2023-May-26_19.5_59.0

Cold spell occuring from May 02 2023 to May 11 2023 at 53.0°N 30.0°E

Download data: JSON

Event type: Cold spell

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

  • Belarus
  • Estonia
  • Finland
  • Latvia
  • Lithuania
  • Russian Federation
  • Sweden
  • Ukraine

Duration: 10 days

Time span: May 02 2023 to May 11 2023

Statistics over entire affected area:

  • Mean temperature anomaly: -6.5 °C
  • Mean temperature: 4.6 °C
  • Minimum temperature anomaly: -9.9 °C
  • Minimum temperature: -1.3 °C

Event center: 53.0°N 30.0°E

Area affected: 1609774 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-May-02_to_2023-May-11_30.0_53.0

Cold spell occuring from April 22 2023 to May 06 2023 at 62.5°N 13.5°E

Download data: JSON

Event type: Cold spell

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

  • Finland
  • Iceland
  • Norway
  • Sweden
  • United Kingdom

Duration: 15 days

Time span: April 22 2023 to May 06 2023

Statistics over entire affected area:

  • Mean temperature anomaly: -4.0 °C
  • Mean temperature: 0.4 °C
  • Minimum temperature anomaly: -8.4 °C
  • Minimum temperature: -10.6 °C

Event center: 62.5°N 13.5°E

Area affected: 1985165 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-22_to_2023-May-06_13.5_62.5

Heat wave occuring from April 20 2023 to April 28 2023 at 60.0°N 29.5°E

Download data: JSON

Event type: Heat wave

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

  • Finland
  • Russian Federation

Duration: 9 days

Time span: April 20 2023 to April 28 2023

Statistics over entire affected area:

  • Mean temperature anomaly: 5.8 °C
  • Mean temperature: 10.9 °C
  • Maximum temperature anomaly: 8.8 °C
  • Maximum temperature: 15.8 °C

Event center: 60.0°N 29.5°E

Area affected: 116863 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_2023-Apr-20_to_2023-Apr-28_29.5_60.0

Heat wave occuring from April 07 2023 to April 22 2023 at 64.5°N 359.5°E

Download data: JSON

Event type: Heat wave

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

  • Finland
  • Greenland
  • Iceland
  • Norway
  • Russian Federation
  • Svalbard and Jan Mayen
  • Sweden

Duration: 16 days

Time span: April 07 2023 to April 22 2023

Statistics over entire affected area:

  • Mean temperature anomaly: 7.1 °C
  • Mean temperature: -5.9 °C
  • Maximum temperature anomaly: 14.9 °C
  • Maximum temperature: 9.1 °C

Event center: 64.5°N 359.5°E

Area affected: 4517853 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_2023-Apr-07_to_2023-Apr-22_359.5_64.5

Heat wave occuring from April 06 2023 to April 11 2023 at 68.5°N 41.5°E

Download data: JSON

Event type: Heat wave

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

  • Finland
  • Norway
  • Russian Federation

Duration: 6 days

Time span: April 06 2023 to April 11 2023

Statistics over entire affected area:

  • Mean temperature anomaly: 4.8 °C
  • Mean temperature: 2.7 °C
  • Maximum temperature anomaly: 7.7 °C
  • Maximum temperature: 4.9 °C

Event center: 68.5°N 41.5°E

Area affected: 130729 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_2023-Apr-06_to_2023-Apr-11_41.5_68.5

Cold spell occuring from March 21 2023 to April 06 2023 at 64.0°N 22.5°E

Download data: JSON

Event type: Cold spell

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

  • Finland
  • Norway
  • Russian Federation
  • Svalbard and Jan Mayen
  • Sweden

Duration: 17 days

Time span: March 21 2023 to April 06 2023

Statistics over entire affected area:

  • Mean temperature anomaly: -6.5 °C
  • Mean temperature: -8.1 °C
  • Minimum temperature anomaly: -14.8 °C
  • Minimum temperature: -21.4 °C

Event center: 64.0°N 22.5°E

Area affected: 1323395 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-Mar-21_to_2023-Apr-06_22.5_64.0