January in Eldorado is the windiest and the coldest month of the year. In January, the weather in Eldorado is typically cold. Average daily high temperature in January is about 3 degrees above zero. On average, Eldorado has 9 sunny, 9 partly cloudy, 8 cloudy, and 5 rainy days in January. The rains are usually light. January as well as February, March, and December is considered the most uncomfortable time to visit Eldorado.