It’s based on loyalty to competitor
My best guess is Convergence or Texture Gradient
The extreme temperstures are
ebruary 27.0 °C (80.6 °F) Yeysk, Krasnodar Krai
March 31.0 °C (87.8 °F) Armavir, Krasnodar Krai
April 36.8 °C (98.2 °F) Armavir, Krasnodar Krai
May 38.7 °C (101.7 °F) Lake Elton, Volgograd Oblast
