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The Sewerage of Sea Coast Towns by Adams, Henry C., 1873-1952
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A word from our supporters: File extension FPF | TABLE No. 9. FREQUENCY OF HEAVY RAIN ------------------------------------------------------- Total Daily Rainfall. Average Frequency of Rainfall -------------------------------------------------------0.4 inches and over 155 times each year 0.5 " 93 " 0.6 " 68 " 0.7 " 50 " 0.8 " 33 " 0.9 " 22 " 1.0 " 17 " 1.1 " Once each year 1.2 " Once in 17 months 1.25 " " 2 years 1.3 " " 2-1/2 1.4 " " 3-1/3 1.5 " " 5 years 1.6 " " 5 years 1.7 " " 5 years 1.8 " " 10 years 1.9 " " 10 years 2.0 " " 10 years |