Juneau Weather In January
The hottest January day in Juneau for the past 66 years was 57 degrees Fahrenheit, registered on January 6, 1958, and the regular high is 31. The record low January temperature in Juneau for the last 66 years was -22 most recently encountered on January 11, 1972, and the typical low is 21.
US National Weather Service historical Juneau January Weather data records that on January 15, 1971, the high temperature did not exceed -4 degrees Fahrenheit, the lowest high measured in Juneau in the past 66 years. NWS data also shows that on January 6, 1958, the lowest measured temperature on that day did not drop below 43 degrees, the highest low temperature measured in Juneau in the last 66 years.
Historical weather data accumulated by the National Weather Service shows that the average daily high temperature in Juneau on January First is 31 degrees Fahrenheit and the average high on the last day of January is 32 degrees. The low temperature in Juneau in January on the first day of the month averages 22 degrees and the low temperature on the last day of the month averages 22 degrees.
Juneau usually receives an average of 4.81 inches of precipitation during January. According to January Juneau Weather records, the most rain measured in a single day in January was 2.11 inches on January 15, 1966. Juneau receives an average of 25.8 inches of snow in January. The highest snowfall measured in a single day in January was 19.6 inches on January 15, 1966.