Inside Design Temperature

The desired inside design temperature will depend upon the intended use of the space. In a large structure, such as a hotel or a hospital, there will be more than one inside design temperature because there is more than one type of space usage. For example, hospital kitchens will generally have an inside design temperature of about 66°F. The wards, on the other hand, will range from 72 to 74°F.

Residences will generally have a single inside design temperature for the entire structure, with 70 or 71°F the most commonly used temperatures.

Table 4-1 Winter Outside Design Temperatures for Major Cities in the United States

Outside Outside

Design Design

Temperature Temperature

Commonly Commonly

State

City

Used

State

City

Used

Alabama

Birmingham

10

New Hampshire

Concord

-15

Arizona

Tucson

25

New Jersey

Atlantic City

5

Arkansas

Little Rock

5

Trenton

0

California

San Francisco

35

New Mexico

Albuquerque

0

Los Angeles

35

New York

Albany

-10

Colorado

Denver

-10

Buffalo

5

Connecticut

New Haven

0

New York City

0

District of Columbia

Washington

0

North Carolina

Asheville

0

Florida

Jacksonville

25

Charlotte

10

Key West

45

North Dakota

Bismarck

-30

Georgia

Atlanta

10

Ohio

Akron

0

Savannah

20

Cincinnati

0

Idaho

Boise

-10

Columbus

-10

Illinois

Cairo

0

Oklahoma

Oklahoma City

0

Chicago

-10

Oregon

Portland

10

Indiana

Indianapolis

-10

Pennsylvania

Erie

-5

Iowa

Des Moines

-15

Harrisburg

0

Sioux City

-20

Philadelphia

0

Kansas

Topeka

-10

Kentucky

Louisville

0

Louisiana

New Orleans

20

Maine

Portland

-5

Maryland

Baltimore

0

Massachusetts

Boston

0

Michigan

Detroit

-10

Escanaba

-15

Sault Ste. Marie

-20

Minnesota

Duluth

-20

Minneapolis

-20

Mississippi

Vicksburg

10

Missouri

Kansas City

-10

St. Louis

0

Montana

Billings

-25

Helena

-20

Miles city

-35

Nebraska

Lincoln

-10

Valentine

-25

Nevada

Reno

-5

Rhode Island

Providence

0

South Carolina

Charleston

15

South Dakota

Huron

-20

Tennessee

Knoxville

0

Texas

Abilene

15

Austin

20

Brownsville

30

Corpus Christi

20

Dallas

0

Houston

20

Utah

Salt Lake City

-10

Vermont

Burlington

-10

Virginia

Lynchburg

5

Norfolk

15

Washington

Seattle

15

Spokane

-15

West Virginia

Parkersburg

-10

Wisconsin

Green Bay

-20

Madison

-15

Wyoming

Cheyenne

-15

Posted in Audel HVAC Fundamentals Volume 1 Heating Systems, Furnaces, and Boilers