Appendix D Degree Day and Design Temperatures
This appendix is informative and is not part of the code.
| STATE | STATIONb | HEATING DEGREE DAYS (yearly total) | DESIGN TEMPERATURES | DEGREES NORTH LATITUDEc | ||
| Winter | Summer | |||||
| 971/2% | Dry bulb 21/2% | Wet bulb 21/2% | ||||
| AL | Birmingham | 2,551 | 21 | 94 | 77 | 33°30″ |
| Huntsville | 3,070 | 16 | 96 | 77 | 34°40″ | |
| Mobile | 1,560 | 29 | 93 | 79 | 30°40″ | |
| Montgomery | 2,291 | 25 | 95 | 79 | 32°20″ | |
| AK | Anchorage | 10,864 | -18 | 68 | 59 | 61°10″ |
| Fairbanks | 14,279 | -47 | 78 | 62 | 64°50″ | |
| Juneau | 9,075 | 1 | 70 | 59 | 58°20″ | |
| Nome | 14,171 | -27 | 62 | 56 | 64°30″ | |
| AZ | Flagstaff | 7,152 | 4 | 82 | 60 | 35°10″ |
| Phoenix | 1,765 | 34 | 107 | 75 | 33°30″ | |
| Tuscon | 1,800 | 32 | 102 | 71 | 33°10″ | |
| Yuma | 974 | 39 | 109 | 78 | 32°40″ | |
| AR | Fort Smith | 3,292 | 17 | 98 | 79 | 35°20″ |
| Little Rock | 3,219 | 20 | 96 | 79 | 34°40″ | |
| Texarkana | 2,533 | 23 | 96 | 79 | 33°30″ | |
| CA | Fresno | 2,611 | 30 | 100 | 71 | 36°50″ |
| Long Beach | 1,803 | 43 | 80 | 69 | 33°50″ | |
| Los Angeles | 2,061 | 43 | 80 | 69 | 34°00″ | |
| Los Angelesd | 1,349 | 40 | 89 | 71 | 34°00″ | |
| Oakland | 2,870 | 36 | 80 | 64 | 37°40″ | |
| Sacramento | 2,502 | 32 | 98 | 71 | 38°30″ | |
| San Diego | 1,458 | 44 | 80 | 70 | 32°40″ | |
| San Francisco | 3,015 | 38 | 77 | 64 | 37°40″ | |
| San Franciscod | 3,001 | 40 | 71 | 62 | 37°50″ | |
| CO | Alamosa | 8,529 | -16 | 82 | 61 | 37°30″ |
| Colorado Springs | 6,423 | 2 | 88 | 62 | 38°50″ | |
| Denver | 6,283 | 1 | 91 | 63 | 39°50″ | |
| Grand Junction | 5,641 | 7 | 94 | 63 | 39°10″ | |
| Pueblo | 5,462 | 0 | 95 | 66 | 38°20″ | |
| CT | Bridgeport | 5,617 | 9 | 84 | 74 | 41°10″ |
| Hartford | 6,235 | 7 | 88 | 75 | 41°50″ | |
| New Haven | 5,897 | 7 | 84 | 75 | 41°20″ | |
| DE | Wilmington | 4,930 | 14 | 89 | 76 | 39°40″ |
| DC | Washington | 4,224 | 17 | 91 | 77 | 38°50″ |
| FL | Daytona | 879 | 35 | 90 | 79 | 29°10″ |
| Fort Myers | 442 | 44 | 92 | 79 | 26°40″ | |
| Jacksonville | 1,239 | 32 | 94 | 79 | 30°30″ | |
| Key West | 108 | 57 | 90 | 79 | 24°30″ | |
| Miami | 214 | 47 | 90 | 79 | 25°50″ | |
| Orlando | 766 | 38 | 93 | 78 | 28°30″ | |
| Pensacola | 1,463 | 29 | 93 | 79 | 30°30″ | |
| Tallahassee | 1,485 | 30 | 92 | 78 | 30°20″ | |
| Tampa | 683 | 40 | 91 | 79 | 28°00″ | |
| West Palm Beach | 253 | 45 | 91 | 79 | 26°40″ | |
| GA | Athens | 2,929 | 22 | 92 | 77 | 34°00″ |
| Atlanta | 2,961 | 22 | 92 | 76 | 33°40″ | |
| Augusta | 2,397 | 23 | 95 | 79 | 33°20″ | |
| Columbus | 2,383 | 24 | 93 | 78 | 32°30″ | |
| Macon | 2,136 | 25 | 93 | 78 | 32°40″ | |
| Rome | 3,326 | 22 | 93 | 78 | 34°20″ | |
| Savannah | 1,819 | 27 | 93 | 79 | 32°10″ | |
| HI | Hilo | 0 | 62 | 83 | 74 | 19°40″ |
| Honolulu | 0 | 63 | 86 | 75 | 21°20″ | |
| ID | Boise | 5,809 | 10 | 94 | 66 | 43°30″ |
| Lewiston | 5,542 | 6 | 93 | 66 | 46°20″ | |
| Pocatello | 7,033 | -1 | 91 | 63 | 43°00″ | |
| IL | Chicago (Midway) | 6,155 | 0 | 91 | 75 | 41°50″ |
| Chicago (O’Hare) | 6,639 | -4 | 89 | 76 | 42°00″ | |
| Chicagod | 5,882 | 2 | 91 | 77 | 41°50″ | |
| Moline | 6,408 | -4 | 91 | 77 | 41°30″ | |
| Peoria | 6,025 | -4 | 89 | 76 | 40°40″ | |
| Rockford | 6,830 | -4 | 89 | 76 | 42°10″ | |
| Springfield | 5,429 | 2 | 92 | 77 | 39°50″ | |
| IN | Evansville | 4,435 | 9 | 93 | 78 | 38°00″ |
| Fort Wayne | 6,205 | 1 | 89 | 75 | 41°00″ | |
| Indianapolis | 5,699 | 2 | 90 | 76 | 39°40″ | |
| South Bend | 6,439 | 1 | 89 | 75 | 41°40″ | |
| IA | Burlington | 6,114 | -3 | 91 | 77 | 40°50″ |
| Des Moines | 6,588 | -5 | 91 | 77 | 41°30″ | |
| Dubuque | 7,376 | -7 | 88 | 75 | 42°20″ | |
| Sioux City | 6,951 | -7 | 92 | 77 | 42°20″ | |
| Waterloo | 7,320 | -10 | 89 | 77 | 42°30″ | |
| KS | Dodge City | 4,986 | 5 | 97 | 73 | 37°50″ |
| Goodland | 6,141 | 0 | 96 | 70 | 39°20″ | |
| Topeka | 5,182 | 4 | 96 | 78 | 39°00″ | |
| Wichita | 4,620 | 7 | 98 | 76 | 37°40″ | |
| KY | Covington | 5,265 | 6 | 90 | 75 | 39°00″ |
| Lexington | 4,683 | 8 | 91 | 76 | 38°00″ | |
| Louisville | 4,660 | 10 | 93 | 77 | 38°10″ | |
| LA | Alexandria | 1,921 | 27 | 94 | 79 | 31°20″ |
| Baton Rouge | 1,560 | 29 | 93 | 80 | 30°30″ | |
| Lake Charles | 1,459 | 31 | 93 | 79 | 30°10″ | |
| New Orleans | 1,385 | 33 | 92 | 80 | 30°00″ | |
| Shreveport | 2,184 | 25 | 96 | 79 | 32°30″ | |
| ME | Caribou | 9,767 | -13 | 81 | 69 | 46°50″ |
| Portland | 7,511 | -1 | 84 | 72 | 43°40″ | |
| MD | Baltimore | 4,654 | 13 | 91 | 77 | 39°10″ |
| Baltimored | 4,111 | 17 | 89 | 78 | 39°20″ | |
| Frederick | 5,087 | 12 | 91 | 77 | 39°20″ | |
| MA | Boston | 5,634 | 9 | 88 | 74 | 42°20″ |
| Pittsfield | 7,578 | -3 | 84 | 72 | 42°30″ | |
| Worcester | 6,969 | 4 | 84 | 72 | 42°20″ | |
| MI | Alpena | 8,506 | -6 | 85 | 72 | 45°00″ |
| Detroit (City) | 6,232 | 6 | 88 | 74 | 42°20″ | |
| Escanabad | 8,481 | -7 | 83 | 71 | 45°40″ | |
| Flint | 7,377 | 1 | 87 | 74 | 43°00″ | |
| Grand Rapids | 6,894 | 5 | 88 | 74 | 42°50″ | |
| Lansing | 6,909 | 1 | 87 | 74 | 42°50″ | |
| Marquetted | 8,393 | -8 | 81 | 70 | 46°30″ | |
| Muskegon | 6,696 | 6 | 84 | 73 | 43°10″ | |
| Sault Ste. Marie | 9,048 | -8 | 81 | 70 | 46°30″ | |
| MN | Duluth | 10,000 | -16 | 82 | 70 | 46°50″ |
| Minneapolis | 8,382 | -12 | 89 | 5 | 44°50″ | |
| Rochester | 8,295 | -12 | 87 | 75 | 44°00″ | |
| MS | Jackson | 2,239 | 25 | 95 | 78 | 32°20″ |
| Meridian | 2,289 | 23 | 95 | 79 | 32°20″ | |
| Vicksburgd | 2,041 | 26 | 95 | 80 | 32°20″ | |
| MO | Columbia | 5,046 | 4 | 94 | 77 | 39°00″ |
| Kansas City | 4,711 | 6 | 96 | 77 | 39°10″ | |
| St. Joseph | 5,484 | 2 | 93 | 79 | 39°50″ | |
| St. Louis | 4,900 | 6 | 94 | 77 | 38°50″ | |
| St. Louisd | 4,484 | 8 | 94 | 77 | 38°40″ | |
| Springfield | 4,900 | 9 | 93 | 77 | 37°10″ | |
| MT | Billings | 7,049 | -10 | 91 | 66 | 45°50″ |
| Great Falls | 7,750 | -15 | 88 | 62 | 47°30″ | |
| Helena | 8,129 | -16 | 88 | 62 | 46°40″ | |
| Missoula | 8,125 | -6 | 88 | 63 | 46°50″ | |
| NE | Grand Island | 6,530 | -3 | 94 | 74 | 41°00″ |
| Lincolnd | 5,864 | -2 | 95 | 77 | 40°50″ | |
| Norfolk | 6,979 | -4 | 93 | 77 | 42°00″ | |
| North Platte | 6,684 | -4 | 94 | 72 | 41°10″ | |
| Omaha | 6,612 | -3 | 91 | 77 | 41°20″ | |
| Scottsbluff | 6,673 | -3 | 92 | 68 | 41°50″ | |
| NV | Elko | 7,433 | -2 | 92 | 62 | 40°50″ |
| Ely | 7,733 | -4 | 87 | 59 | 39°10″ | |
| Las Vegas | 2,709 | 28 | 106 | 70 | 36°10″ | |
| Reno | 6,332 | 10 | 92 | 62 | 39°30″ | |
| Winnemucca | 6,761 | 3 | 94 | 62 | 40°50″ | |
| NH | Concord | 7,383 | -3 | 87 | 73 | 43°10″ |
| NJ | Atlantic City | 4,812 | 13 | 89 | 77 | 39°30″ |
| Newark | 4,589 | 14 | 91 | 76 | 40°40″ | |
| Trentond | 4,980 | 14 | 88 | 76 | 40°10″ | |
| NM | Albuquerque | 4,348 | 16 | 94 | 65 | 35°00″ |
| Raton | 6,228 | 1 | 89 | 64 | 36°50″ | |
| Roswell | 3,793 | 18 | 98 | 70 | 33°20″ | |
| Silver City | 3,705 | 10 | 94 | 64 | 32°40″ | |
| NY | Albany | 6,875 | -1 | 88 | 74 | 42°50″ |
| Albanyd | 6,201 | 1 | 88 | 74 | 42°50″ | |
| Binghamton | 7,286 | 1 | 83 | 72 | 42°10″ | |
| Buffalo | 7,062 | 6 | 85 | 73 | 43°00″ | |
| NY (Central Park)d | 4,871 | 15 | 89 | 75 | 40°50″ | |
| NY (Kennedy) | 5,219 | 15 | 87 | 75 | 40°40″ | |
| NY (LaGuardia) | 4,811 | 15 | 89 | 75 | 40°50″ | |
| Rochester | 6,748 | 5 | 88 | 73 | 43°10″ | |
| Schenectadyd | 6,650 | 1 | 87 | 74 | 42°50″ | |
| Syracuse | 6,756 | 2 | 87 | 73 | 43°10″ | |
| NC | Charlotte | 3,181 | 22 | 93 | 76 | 35°10″ |
| Greensboro | 3,805 | 18 | 91 | 76 | 36°10″ | |
| Raleigh | 3,393 | 20 | 92 | 77 | 35°50″ | |
| Winston-Salem | 3,595 | 20 | 91 | 75 | 36°10″ | |
| ND | Bismarck | 8,851 | -19 | 91 | 71 | 46°50″ |
| Devils Laked | 9,901 | -21 | 88 | 71 | 48°10″ | |
| Fargo | 9,226 | -18 | 89 | 74 | 46°50″ | |
| Williston | 9,243 | -21 | 88 | 70 | 48°10″ | |
| OH | Akron-Canton | 6,037 | 6 | 86 | 73 | 41°00″ |
| Cincinnatid | 4,410 | 6 | 90 | 75 | 39°10″ | |
| Cleveland | 6,351 | 5 | 88 | 74 | 41°20″ | |
| Columbus | 5,660 | 5 | 90 | 75 | 40°00″ | |
| Dayton | 5,622 | 4 | 89 | 75 | 39°50″ | |
| Mansfield | 6,403 | 5 | 87 | 74 | 40°50″ | |
| Sanduskyd | 5,796 | 6 | 91 | 74 | 41°30″ | |
| Toledo | 6,494 | 1 | 88 | 75 | 41°40″ | |
| Youngstown | 6,417 | 4 | 86 | 73 | 41°20″ | |
| OK | Oklahoma City | 3,725 | 13 | 97 | 77 | 35°20″ |
| Tulsa | 3,860 | 13 | 98 | 78 | 36°10″ | |
| OR | Eugene | 4,726 | 22 | 89 | 67 | 44°10″ |
| Medford | 5,008 | 23 | 94 | 68 | 42°20″ | |
| Portland | 4,635 | 23 | 85 | 67 | 45°40″ | |
| Portlandd | 4,109 | 24 | 86 | 67 | 45°30″ | |
| Salem | 4,754 | 23 | 88 | 68 | 45°00″ | |
| PA | Allentown | 5,810 | 9 | 88 | 75 | 40°40″ |
| Erie | 6,451 | 9 | 85 | 74 | 42°10″ | |
| Harrisburg | 5,251 | 11 | 91 | 76 | 40°10″ | |
| Philadelphia | 5,144 | 14 | 90 | 76 | 39°50″ | |
| Pittsburgh | 5,987 | 5 | 86 | 73 | 40°30″ | |
| Pittsburghd | 5,053 | 7 | 88 | 73 | 40°30″ | |
| Readingd | 4,945 | 13 | 89 | 75 | 40°20″ | |
| Scranton | 6,254 | 5 | 87 | 73 | 41°20″ | |
| Williamsport | 5,934 | 7 | 89 | 74 | 41°10″ | |
| RI | Providence | 5,954 | 9 | 86 | 74 | 41°40″ |
| SC | Charleston | 2,033 | 27 | 91 | 80 | 32°50″ |
| Charlestond | 1,794 | 28 | 92 | 80 | 32°50″ | |
| Columbia | 2,484 | 24 | 95 | 78 | 34°00″ | |
| SD | Huron | 8,223 | -14 | 93 | 75 | 44°30″ |
| Rapid City | 7,345 | -7 | 92 | 69 | 44°00″ | |
| Sioux Falls | 7,839 | -11 | 91 | 75 | 43°40″ | |
| TN | Bristol | 4,143 | 14 | 89 | 75 | 36°30″ |
| Chattanooga | 3,254 | 18 | 93 | 77 | 35°00″ | |
| Knoxville | 3,494 | 19 | 92 | 76 | 35°50″ | |
| Memphis | 3,232 | 18 | 95 | 79 | 35°00″ | |
| Nashville | 3,578 | 14 | 94 | 77 | 36°10″ | |
| TX | Abilene | 2,624 | 20 | 99 | 74 | 32°30″ |
| Austin | 1,711 | 28 | 98 | 77 | 30°20″ | |
| Dallas | 2,363 | 22 | 100 | 78 | 32°50″ | |
| El Paso | 2,700 | 24 | 98 | 68 | 31°50″ | |
| Houston | 1,396 | 32 | 94 | 79 | 29°40″ | |
| Midland | 2,591 | 21 | 98 | 72 | 32°00″ | |
| San Angelo | 2,255 | 22 | 99 | 74 | 31°20″ | |
| San Antonio | 1,546 | 30 | 97 | 76 | 29°30″ | |
| Waco | 2,030 | 26 | 99 | 78 | 31°40″ | |
| Wichita Falls | 2,832 | 18 | 101 | 76 | 34°00″ | |
| UT | Salt Lake City | 6,052 | 8 | 95 | 65 | 40°50″ |
| VT | Burlington | 8,269 | -7 | 85 | 72 | 44°30″ |
| VA | Lynchburg | 4,166 | 16 | 90 | 76 | 37°20″ |
| Norfolk | 3,421 | 22 | 91 | 78 | 36°50″ | |
| Richmond | 3,865 | 17 | 92 | 78 | 37°30″ | |
| Roanoke | 4,150 | 16 | 91 | 74 | 37°20″ | |
| WA | Olympia | 5,236 | 22 | 83 | 66 | 47°00″ |
| Seattle-Tacoma | 5,145 | 26 | 80 | 64 | 47°30″ | |
| Seattled | 4,424 | 27 | 82 | 67 | 47°40″ | |
| Spokane | 6,655 | 2 | 90 | 64 | 47°40″ | |
| WV | Charleston | 4,476 | 11 | 90 | 75 | 38°20″ |
| Elkins | 5,675 | 6 | 84 | 72 | 38°50″ | |
| Huntington | 4,446 | 10 | 91 | 77 | 38°20″ | |
| Parkersburgd | 4,754 | 11 | 90 | 76 | 39°20″ | |
| WI | Green Bay | 8,029 | -9 | 85 | 74 | 44°30″ |
| La Crosse | 7,589 | -9 | 88 | 75 | 43°50″ | |
| Madison | 7,863 | -7 | 88 | 75 | 43°10″ | |
| Milwaukee | 7,635 | -4 | 87 | 74 | 43°00″ | |
| WY | Casper | 7,410 | -5 | 90 | 61 | 42°50″ |
| Cheyenne | 7,381 | -1 | 86 | 62 | 41°10″ | |
| Lander | 7,870 | -11 | 88 | 63 | 42°50″ | |
| Sheridan | 7,680 | -8 | 91 | 65 | 44°50″ | |
- All data were extracted from the 1985 ASHRAE Handbook, Fundamentals Volume.
- Design data developed from airport temperature observations unless noted.
- Latitude is given to the nearest 10 minutes. For example, the latitude for Miami, Florida, is given as 25°50″, or 25 degrees 50 minutes.
- Design data developed from office locations within an urban area, not from airport temperature observations.
mattis, pulvinar dapibus leo.
COOLING HOUR MAP
