Harrisburg Weather In May
The highest recorded temperature for Harrisburg for the past 54 years in May was 97 degrees Fahrenheit, measured on May 1, 1942, while the normal high temperature is 73. The coldest day reported in Harrisburg in May for the past 54 years was 31 measured on May 5, 1966, and the mean daily low in the month is 51.
United States National Weather Service historical Harrisburg May weather data indicates that on May 14, 1967, the measured high temperature did not exceed 46 degrees Fahrenheit, the lowest high measured in Harrisburg in the past 54 years. Weather Service data also shows that on May 31, 1991, the lowest recorded temperature for the day did not drop below 73 degrees, the highest low measured temperature in Harrisburg in the last 54 years.
According to the National Weather Service, the high temperature in Harrisburg in May on the first day of the month averages 70 degrees and the high on the last day of the month averages 78 degrees. The low temperature in Harrisburg in May on the first day of the month averages 48 degrees and the low temperature on the last day of the month averages 57 degrees.
Harrisburg usually receives an average of 4.6 inches of precipitation during the month. May Harrisburg Weather records indicated that on May 2, 1929 Harrisburg received 2.71 inches of precipitation, the most rain recorded in a single day in May.