The average temperature in Jackson MS the average temperature is 35.21 degrees in summer, with precipitation around 9.0 mm , Denver's temperatures reach 34.63 during the hot season, with 12.0 average of rain rate . In winter, however, weather indicators show around -17.82 degrees in Denver, compared to the -4.21 average degrees reported in Jackson MS. During the winter period, Jackson MS can register 9.0 mm precipitation, while Denver have an average of 9.0 mm rain level.