The average temperature in Toluca the average temperature is 27.5 degrees in summer, with precipitation around 2.3 mm , Bay City - Saginaw, MI's temperatures reach 32.27 during the hot season, with 9.0 average of rain rate . In winter, however, weather indicators show around -18.82 degrees in Bay City - Saginaw, MI, compared to the -1.26 average degrees reported in Toluca. During the winter period, Toluca can register 5.3 mm precipitation, while Bay City - Saginaw, MI have an average of 3.0 mm rain level.