Erie Weather In September
The hottest day in Erie Pennsylvania in September for the past 57 years was 99 degrees Fahrenheit, most recently measured on September 4, 1953, and the typical high is 72. The lowest documented temperature for Erie for the past 57 years in September was 33 on September 5, 1974, while the average low temperature is 56.
National Weather Service historical Erie September Weather data indicates that on September 15, 1956, the recorded high did not exceed 48 degrees Fahrenheit, the lowest high measured in Erie in the past 57 years. NWS weather data additionally shows that on September 9, 1941, the lowest recorded temperature on that day did not drop below 76 degrees, the highest low measured in Erie in the last 57 years.
National Weather Service records indicate that the high temperature in Erie on September First averages 77 degrees and the high on the last day of the month averages 66 degrees. The average daily low temperature in Erie on September First is 60 degrees Fahrenheit and the average low on the last day of September is 49 degrees.
Erie usually receives an average of 4.73 inches of rain during the month. The most rain recorded in a single day, as shown by September Erie Weather data, was 4.66 inches on September 14, 1979.