condition mean min max 4 h after light 42.2862 40.3449 44.2275 8 h after light 31.44215 31.3423 31.542 12 h after light 29.61075 29.4363 29.7852 4 h after dark 36.70615 35.5429 37.8694 8 h after dark 41.586 40.6658 42.5062 12 h after dark 49.33825 48.6356 50.0409