Table 1.10 Cooling Degree-Days by Census Division, 1949-2003

Year
New
England
Middle
Atlantic
East North
Central
West North
Central
South
Atlantic
East South
Central
West South
Central

Mountain

Pacific
1
United
States
1
1949 654 901 949 1,038 2,128 1,776 2,510 1,198 593 1,318
1950 353 542 602 729 1,919 1,568 2,473 1,120 597 1,110
1951 400 653 644 777 2,028 1,781 2,684 1,137 593 1,195
1952 581 825 897 1,109 2,097 1,864 2,543 1,278 657 1,318
1953 441 768 945 1,183 2,137 1,893 2,727 1,193 571 1,326
1954 303 646 858 1,250 2,082 1,998 2,907 1,292 590 1,315
1955 602 934 1,043 1,238 2,045 1,791 2,643 1,124 560 1,344
1956 336 566 750 1,155 1,913 1,685 2,833 1,247 596 1,221
1957 428 738 754 1,004 2,050 1,692 2,465 1,155 660 1,230
1958 344 592 638 878 1,922 1,582 2,517 1,328 836 1,189
1959 532 903 997 1,083 2,128 1,745 2,456 1,258 776 1,348
1960 368 640 722 961 1,926 1,613 2,492 1,308 770 1,206
1961 482 787 745 867 1,888 1,370 2,230 1,223 709 1,168
1962 264 561 742 974 1,908 1,738 2,700 1,147 559 1,179
1963 373 571 712 1,196 1,812 1,580 2,899 1,235 605 1,204
1964 312 634 787 1,030 1,905 1,591 2,608 1,095 574 1,185
1965 352 638 688 914 1,931 1,634 2,579 961 542 1,153
1966 421 731 724 919 1,788 1,440 2,309 1,239 680 1,148
1967 420 602 548 713 1,697 1,257 2,385 1,120 817 1,077
1968 410 725 740 902 1,842 1,517 2,247 1,015 632 1,137
1969 447 706 701 940 1,887 1,572 2,505 1,228 680 1,190
1970 479 779 827 1,066 2,007 1,662 2,375 1,163 689 1,242
1971 465 730 783 960 1,932 1,577 2,448 1,074 685 1,204
1972 364 614 643 908 1,843 1,525 2,513 1,141 698 1,146
1973 551 830 864 1,009 2,000 1,665 2,359 1,123 624 1,241
1974 393 614 626 878 1,842 1,382 2,342 1,188 690 1,117
1975 467 708 788 1,003 2,011 1,520 2,261 1,031 547 1,172
1976 402 597 619 939 1,675 1,232 2,035 1,058 620 1,029
1977 407 689 823 1,122 2,020 1,808 2,720 1,256 715 1,285
1978 378 615 741 1,027 1,972 1,685 2,638 1,174 738 1,226
1979 434 588 618 871 1,833 1,412 2,242 1,164 770 1,113
1980 487 793 816 1,217 2,075 1,834 2,734 1,202 658 1,313
1981 436 657 658 924 1,889 1,576 2,498 1,331 876 1,209
1982 321 541 643 859 1,958 1,537 2,502 1,121 619 1,136
1983 538 799 934 1,178 1,925 1,579 2,288 1,174 776 1,260
1984 468 649 724 955 1,865 1,508 2,469 1,190 956 1,214
1985 372 627 643 830 2,004 1,596 2,599 1,210 737 1,194
1986 301 626 738 1,021 2,149 1,792 2,618 1,188 664 1,249
1987 406 729 918 1,115 2,067 1,718 2,368 1,196 706 1,269
1988 545 782 975 1,230 1,923 1,582 2,422 1,320 729 1,283
1989 426 658 652 864 1,977 1,417 2,295 1,330 685 1,156
1990 477 656 647 983 2,143 1,622 2,579 1,294 827 1,260
1991 511 854 959 1,125 2,197 1,758 2,499 1,182 672 1,331
1992 276 460 449 637 1,777 1,293 2,201 1,206 905 1,040
1993 486 764 735 817 2,092 1,622 2,369 1,113 708 1,218
1994 548 722 664 887 2,005 1,448 2,422 1,436 801 1,220
1995 507 803 921 985 2,081 1,671 2,448 1,234 754 1,293
1996 400 623 629 821 1,867 1,474 2,515 1,381 856 1,180
1997 395 586 574 873 1,886 1,393 2,361 1,335 921 1,156
1998 505 788 889 1,138 2,277 1,928 3,026 1,271 732 1,410
1999 631 882 855 970 2,024 1,733 2,645 1,242 635 1,297
2000 317 542 658 1,023 1,929 1,736 2,787 1,488 756 1,229
2001 519 722 744 1,028 1,891 1,535 2,565 1,498 794 1,245
2002 R 570 R 863 R 933 R 1,049 R 2,209 R 1,808 R 2,545 R 1,543 R 739 R 1,393
2003P 502 662 633 950 1,996 1,510 2,587 1,603 899 1,281

Normals
2
418 655 708 928 1,964 1,549 2,448 1,244 704 1,215
1Excludes Alaska and Hawaii. Notes: · Degree-days are relative measurements of outdoor air temperature. Cooling degree-days are deviations above the mean daily temperature of 65° F. For example, a weather station recording a mean daily temperature of 78° F would report 13 cooling degree-days. · Temperature information recorded by weather stations is used to calculate State-wide degree-day averages based on resident State population. Beginning in 2002, data are weighted by the estimated 2000 population. The population-weighted State figures are aggregated into Census divisions and the national average. · See Appendix C for Census divisions.
2Normals are based on calculations of data from 1971 through 2000. Web Page: For current data, see http://www.eia.doe.gov/emeu/mer/overview.html.
R=Revised. P=Preliminary. Sources: · 1949-2002 and Normals—U.S. Department of Commerce, National Oceanic and Atmospheric Administration (NOAA), National Climatic Data Center, Asheville, North Carolina. Historical Climatology Series 5-2. · 2003—Energy Information Administration, Monthly Energy Review, June 2003-May 2004 issues, Table 1.11, which reports data from NOAA, National Weather Service Climate Analysis Center, Camp Springs, Maryland.