condition mean min max 4 h after light 40.3502 39.271 41.4294 8 h after light 30.89705 30.1624 31.6317 12 h after light 28.732950000000002 26.8623 30.6036 4 h after dark 30.9501 28.8107 33.0895 8 h after dark 34.06205 33.6937 34.4304 12 h after dark 39.7535 38.89 40.617