condition mean min max 4 h after light 47.426285 42.808944 52.043626 8 h after light 42.673407499999996 42.537871 42.808944 12 h after light 39.2018625 36.843377 41.560348 4 h after dark 42.808944 42.808944 42.808944 8 h after dark 45.5444085 43.619493 47.469324 12 h after dark 37.009087 37.009087 37.009087