Mean difference between temperatures of air and water (January, April, July, October)

Conventions: С°
Reference: Hydrometeorology and Hydrochemistry of Seas (1992). Volume VI The Caspian Sea. Issue 1 Hydrometeorological regime. Eds. F.S. Terziev, A.N. Kosarev, A.A. Kerimov.

Mean difference between temperatures of air and water, С°
Mean difference between temperatures of air and water, January
Mean difference between temperatures of air and water, April
Mean difference between temperatures of air and water, July
Mean difference between temperatures of air and water, October