condition mean min max 4 h after light 1946.0 1946.0 1946.0 8 h after light 2278.8 1964.9 2592.7 12 h after light 2430.3 2405.2 2455.4 4 h after dark 2597.7 2191.0 3004.4 8 h after dark 2591.7 2446.5 2736.9 12 h after dark 2885.75 2739.5 3032.0