CODES

ADOPTS WITH AMENDMENTS:

International Plumbing Code 2012 (IPC 2012)

This appendix is informative and is not part of the code.

Rainfall rates, in inches per hour, are based on a storm of 1-hour duration and a 100-year return period. The rainfall rates shown in the appendix are derived from Figure 1106.1.

Alabama:Florida:Louisville3.2Springfield3.4
Birmingham3.8Jacksonville4.3Middlesboro3.2St. Louis3.2
Huntsville3.6Key West4.3Paducah3.3Montana:
Mobile 4.6Miami 4.7Louisiana:Ekalaka 2.5
Montgomery4.2Pensacola 4.6Alexandria 4.2Havre 1.6
Alaska:Tampa4.5Lake Providence 4.0Helena 1.5
Fairbanks1.0Georgia:New Orleans4.8Kalispell1.2
Juneau0.6Atlanta3.7Shreveport 3.9Missoula 1.3
Arizona:Dalton 3.4Maine:Nebraska:
Flagstaff2.4Macon3.9Bangor2.2North Platte3.3
Nogales3.1Savannah 4.3Houlton2.1Omaha 3.8
Phoenix2.5Thomasville 4.3Portland2.4Scottsbluff 3.1
Yuma1.6Hawaii:Maryland:Valentine3.2
Arkansas:Hilo 6.2Baltimore3.2Nevada:
Fort Smith3.6Honolulu 3.0Hagerstown 2.8Elko 1.0
Little Rock3.7Wailuku 3.0Oakland2.7Ely1.1
Texarkana3.8Idaho:Salisbury 3.1Las Vegas 1.4
California:Boise 0.9Massachusetts:Reno 1.1
Barstow1.4Lewiston1.1Boston 2.5New Hampshire:
Crescent City 1.5Pocatello1.2Pittsfield 2.8Berlin 2.5
Fresno1.1Illinois:Worcester 2.7Concord 2.5
Los Angeles2.1Cairo3.3Michigan:Keene 2.4
Needles1.6Chicago3.0Alpena 2.5New Jersey:
Placerville 1.5Peoria 3.3Detroit 2.7Atlantic City 2.9
San Fernando2.3Rockford3.2Grand Rapids2.6Newark 3.1
San Francisco 1.5Springfield3.3Lansing 2.8Trenton 3.1
Yreka1.4Indiana:Marquette 2.4New Mexico:
Colorado: Evansville 3.2Sault Ste. Marie2.2Albuquerque2.0
Craig1.5Fort Wayne2.9Minnesota:Hobbs3.0
Denver2.4Indianapolis3.1Duluth 2.8Raton2.5
Durango1.8Iowa:Grand Marais 2.3Roswell 2.6
Grand Junction1.7Davenport 3.3Minneapolis 3.1Silver City1.9
Lamar3.0Des Moines3.4Moorhead 3.2New York:
Pueblo2.5Dubuque3.3Worthington3.5Albany 2.5
Connecticut:Sioux City3.6Mississippi:Binghamton 2.3
Hartford2.7Kansas:Biloxi 4.7Buffalo 2.3
New Haven2.8Atwood3.3Columbus 3.9Kingston 2.7
Putnam 2.6Dodge City 3.3Corinth 3.6New York 3.0
Delaware:Topeka3.7Natchez 4.4Rochester2.2
Georgetown 3.0Wichita3.7Vicksburg 4.1North Carolina:
Wilmington3.1Kentucky:Missouri:Asheville 4.1
District of Columbia:Ashland 3.0Columbia 3.2Charlotte 3.7
Washington 3.2Lexington 3.1Kansas City3.6Greensboro3.4
Wilmington4.2
Dallas4.0
North Dakota:Del Rio4.0
Bismarck2.8El Paso2.3
Devils Lake2.9Houston 4.6
Fargo 3.1Lubbock 3.3
Williston2.6Odessa3.2
Ohio:Pecos3.0
Cincinnati2.9San Antonio 4.2
Cleveland 2.6Utah:
Columbus2.8Brigham City1.2
Toledo 2.8Roosevelt 1.3
Oklahoma:Salt Lake City 1.3
Altus 3.7St. George1.7
Boise City3.3Vermont:
Durant 3.8Barre 2.3
Oklahoma City 3.8Bratteboro2.7
Oregon:Burlington2.1
Baker 0.9Rutland2.5
Coos Bay1.5Virginia:
Eugene 1.3Bristol2.7
Portland 1.2Charlottesville2.8
Pennsylvania:Lynchburg3.2
Erie 2.6Norfolk 3.4
Harrisburg2.8Richmond 3.3
Philadelphia 3.1Washington:
Pittsburgh2.6Omak 1.1
Scranton 2.7Port Angeles 1.1
Rhode Island:Seattle 1.4
Block Island 2.75Spokane 1.0
Providence 2.6Yakima 1.1
South Carolina:West Virginia:
Charleston 4.3Charleston 2.8
Columbia 4.0Morgantown 2.7
Greenville 4.1Wisconsin:
South Dakota:Ashland 2.5
Buffalo 2.8Eau Claire2.9
Huron 3.3Green Bay2.6
Pierre 3.1La Crosse 3.1
Rapid City 2.9Madison 3.0
Yankton 3.6Milwaukee 3.0
Tennessee:Wyoming:
Chattanooga3.5Cheyenne 2.2
Knoxville 3.2Fort Bridger1.3
Memphis 3.7Lander 1.5
Nashville 3.3New Castle 2.5
Texas:Sheridan1.7
Abilene 3.6Yellowstone Park 1.4
Amarillo 3.5
Brownsville 4.5
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