Harrisburg Weather In December
The hottest December day in Harrisburg for the past 54 years was 75 degrees Fahrenheit, measured on December 29, 1984, and the regular high is 42. In the last 54 years the highest reported temperature in Harrisburg for December was -8 measured on December 13, 1960, while the typical low recorded temperature is 28.
United States National Weather Service historical Harrisburg December Weather data shows that on December 26, 1983, the high temperature did not exceed 7 degrees Fahrenheit, the lowest high measured in Harrisburg in the past 54 years. Weather Service data also shows that on December 18, 1984, the lowest recorded temperature for the day did not drop below 57 degrees, the highest low measured temperature in Harrisburg in the last 54 years.
Weather Service historical data shows that the average daily high temperature in Harrisburg on December First is 44 degrees Fahrenheit and the average high on the last day of December is 39 degrees. The low measured temperature in Harrisburg on December First averages 29 degrees and the low on the last day of the month averages 24 degrees.
Harrisburg usually receives an average of 3.22 inches of rain during December. December Harrisburg Weather records show that on December 22, 1983 Harrisburg received 2.73 inches of rain, the most rain measured in a single day in December. Harrisburg averages 6.8 inches of snow in December.On December 10, 1926 Harrisburg received 100.6 inches of rain, the greatest snowfall measured in a single day in December.