CHAPTER 15RAINFALL RATES

15.1

RATES OF RAINFALL FOR VARIOUS CITIES

Rainfall rates, in inches per hour, are based on a storm of one-hour duration and a100-year return period.

FIGURE 15.1 Rates of rainfall for various cities. Source: National Weather Service,National Oceanic and Atmospheric Administration, Washington, D.C.

(continued)

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15.2 2006 INTERNATIONAL PLUMBING CODES HANDBOOK

FIGURE 15.1 (Continued) Rates of rainfall for various cities. Source: National WeatherService, National Oceanic and Atmospheric Administration, Washington, D.C.

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RAINFALL RATES 15.3

FIGURE 15.2 A chart for the one hundred year, one-hour rainfall (inches) for Hawaii.Source: National Weather Service, National Oceanic and Atmospheric Administration,Washington, D.C.

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15.4 2006 INTERNATIONAL PLUMBING CODES HANDBOOK

FIGURE 15.3 A chart for the one hundred year, one-hour rainfall (inches) for the west-ern United States. Source: National Weather Service, National Oceanic and AtmosphericAdministration, Washington, D.C.

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RAINFALL RATES 15.5

FIGURE 15.4 A chart for the one hundred year, one-hour rainfall (inches) for Alaska.Source: National Weather Service, National Oceanic and Atmospheric Administration,Washington, D.C.

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15.6 2006 INTERNATIONAL PLUMBING CODES HANDBOOK

FIGURE 15.5 A chart for the one hundred year, one-hour rainfall (inches) for the east-ern United States. Source: National Weather Service, National Oceanic and AtmosphericAdministration, Washington, D.C.

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RAINFALL RATES 15.7

FIGURE 15.6 A chart for the one hundred year, one-hour rainfall (inches) for the cen-tral United States. Source: National Weather Service, National Oceanic and AtmosphericAdministration, Washington, D.C.

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