Washington Weather In December
The hottest December day in Washington for the past 105 years was 84 degrees Fahrenheit, most recently encountered on December 26, 1965, and the regular high is 46. In the last 105 years the highest reported temperature in Washington for December was -8 most recently measured on December 18, 1960, and the standard low recorded daily temperature is 26.
United States NWS historical Washington December Weather data records that on December 18, 1973, the high temperature did not exceed 20 degrees Fahrenheit, the lowest high measured in Washington in the past 105 years. NWS data also shows that on December 4, 1994, the lowest measured temperature on that day did not drop below 51 degrees, the highest low temperature measured in Washington in the last 105 years.
NWS data indicates that the daily high temperature in Washington on December First averages 48 degrees Fahrenheit and the high on the last day of December averages 44 degrees. The daily low temperature in Washington on December First averages 24 degrees Fahrenheit and the low on the last day of December averages 20 degrees.
Washington usually receives an average of 3.07 inches of rain during the month. According to December Washington Weather records, the most rain measured in a single day in December was 3.51 inches on December 16, 1974. Washington receives an average of 3.6 inches of snow in December. The highest snowfall measured in a single day in December was 6 inches on December 25, 1971.