First 32-Degree F Temperature in Autumn for the Contiguous United States (Median, Mean and Extreme)
First 32-Degree F Temperature in Autumn for the Contiguous United States (Median, Mean and Extreme). 1961-1990
First 32-Degree F Temperature in Autumn (Extreme) for the Contiguous United States, collected from 1961-1990. Obtained from National Climatic Data Center(NCDC) Climate Atlas of the Contiguous United States.