The average temperature in Newark - Nj the average temperature is 32.8 degrees in summer, with precipitation around 12.0 mm , Tampico's temperatures reach 33.9 during the hot season, with 3.0 average of rain rate . In winter, however, weather indicators show around 11.02 degrees in Tampico, compared to the -12.83 average degrees reported in Newark - Nj. During the winter period, Newark - Nj can register 12.0 mm precipitation, while Tampico have an average of 3.0 mm rain level.