condition mean min max 4 h after light 15.4558775 15.341971 15.569784 8 h after light 15.9221355 15.06731 16.776961 12 h after light 13.437400499999999 13.10941 13.765391 4 h after dark 15.683682000000001 15.341971 16.025393 8 h after dark 16.2601545 15.06731 17.452999 12 h after dark 15.341971 15.341971 15.341971