condition mean min max 4 h after light 945.6 945.6 945.6 8 h after light 982.05 951.1 1013.0 12 h after light 1023.5500000000001 881.2 1165.9 4 h after dark 1176.0 1107.3 1244.7 8 h after dark 1127.05 1098.8 1155.3 12 h after dark 1207.15 1086.8 1327.5