The average temperature in West Palm Beach, FL the average temperature is 31.69 degrees in summer, with precipitation around 6.0 mm , Montrose, CO's temperatures reach 32.78 during the hot season, with 6.0 average of rain rate . In winter, however, weather indicators show around -16.34 degrees in Montrose, CO, compared to the 8.07 average degrees reported in West Palm Beach, FL. During the winter period, West Palm Beach, FL can register 9.0 mm precipitation, while Montrose, CO have an average of 0.9 mm rain level.