Weather By Day

September Mount Washington Weather 
September Mount Washington Weather
Record High: 68°F
Normal High: 46°F
Normal Low: 35°F
Record Low: 9°F
Avg Monthly Rain: 8.55"
Rec 1 Day Rain: 5.08"
Avg Monthly Snow: 2"
Rec 1 Day Snow: 7.7"

Mount Washington Weather In September

In the last 78 years the highest measured September temperature in Mount Washington was 68 degrees Fahrenheit, most recently measured on September 21, 2002, and the standard high is 46. The lowest documented temperature in September for Mount Washington for the past 78 years was 9 most recently encountered on September 30, 1992, and the typical low is 35.

United States NWS historical Mount Washington September Weather data records that on September 30, 1992, the high temperature did not exceed 15 degrees Fahrenheit, the lowest high measured in Mount Washington in the past 78 years. Weather Service records additionally show that on September 7, 1999, the recorded low temperature for the day did not drop below 57 degrees, the highest low measured in Mount Washington in the last 78 years.

Weather Service historical data shows that the average daily high temperature in Mount Washington on September First is 50 degrees Fahrenheit and the average high on the last day of September is 42 degrees. The low temperature in Mount Washington in September on the first day of the month averages 40 degrees and the low temperature on the last day of the month averages 29 degrees.

Mount Washington normally receives an average of 8.55 inches of rain during September. September Mount Washington Weather records show that on September 30, 1999 Mount Washington received 5.08 inches of rain, the most rain measured in a single day in September. Mount Washington receives an average of 2 inches of snow in September. The most snow measured in a single day in September was 7.7 inches on September 16, 1986.