Table 1.7 Heating Degree-Days by Month, 1949-2007 | |||||||||||||
Year | January | February | March | April | May | June | July | August | September | October | November | December | Total |
1949
|
858 | 701 | 611 | 330 | 128 | 21 | 7 | 9 | 94 | 209 | 503 | 763 | 4,234 |
1950
|
761 | 721 | 693 | 412 | 162 | 40 | 11 | 18 | 85 | 196 | 565 | 872 | 4,536 |
1951
|
863 | 724 | 632 | 359 | 135 | 45 | 8 | 17 | 74 | 231 | 645 | 814 | 4,547 |
1952
|
807 | 677 | 670 | 315 | 154 | 32 | 5 | 11 | 54 | 324 | 540 | 785 | 4,374 |
1953
|
754 | 667 | 557 | 378 | 142 | 33 | 5 | 11 | 51 | 208 | 492 | 765 | 4,063 |
1954
|
886 | 577 | 646 | 261 | 192 | 32 | 8 | 18 | 56 | 224 | 523 | 809 | 4,232 |
1955
|
927 | 759 | 600 | 272 | 121 | 48 | 9 | 6 | 56 | 237 | 600 | 886 | 4,521 |
1956
|
900 | 723 | 648 | 387 | 157 | 27 | 10 | 14 | 82 | 215 | 541 | 683 | 4,387 |
1957
|
977 | 628 | 610 | 308 | 148 | 23 | 6 | 16 | 61 | 315 | 536 | 711 | 4,339 |
1958
|
909 | 866 | 690 | 324 | 143 | 54 | 7 | 8 | 60 | 250 | 484 | 917 | 4,712 |
1959
|
944 | 762 | 619 | 305 | 112 | 26 | 4 | 6 | 48 | 249 | 594 | 734 | 4,403 |
1960
|
884 | 780 | 831 | 278 | 160 | 33 | 7 | 11 | 48 | 254 | 502 | 936 | 4,724 |
1961
|
982 | 670 | 565 | 413 | 199 | 29 | 5 | 7 | 48 | 238 | 532 | 852 | 4,540 |
1962
|
976 | 747 | 689 | 337 | 118 | 35 | 14 | 13 | 91 | 234 | 554 | 886 | 4,694 |
1963
|
1,061 | 841 | 562 | 325 | 163 | 35 | 8 | 18 | 76 | 162 | 471 | 1,012 | 4,734 |
1964
|
871 | 803 | 636 | 339 | 124 | 39 | 5 | 22 | 72 | 301 | 489 | 814 | 4,515 |
1965
|
907 | 780 | 738 | 355 | 114 | 48 | 11 | 14 | 78 | 271 | 494 | 739 | 4,549 |
1966
|
1,010 | 790 | 580 | 377 | 188 | 30 | 6 | 14 | 81 | 298 | 496 | 830 | 4,700 |
1967
|
816 | 820 | 600 | 352 | 229 | 34 | 8 | 17 | 82 | 270 | 588 | 793 | 4,609 |
1968
|
979 | 832 | 567 | 309 | 192 | 35 | 6 | 14 | 59 | 240 | 548 | 894 | 4,675 |
1969
|
939 | 778 | 735 | 307 | 134 | 47 | 7 | 9 | 60 | 296 | 564 | 860 | 4,736 |
1970
|
1,063 | 758 | 685 | 344 | 120 | 31 | 4 | 9 | 55 | 253 | 541 | 801 | 4,664 |
1971
|
976 | 760 | 681 | 375 | 194 | 29 | 10 | 12 | 47 | 187 | 553 | 723 | 4,547 |
1972
|
890 | 785 | 608 | 377 | 137 | 49 | 7 | 12 | 65 | 330 | 613 | 832 | 4,705 |
1973
|
893 | 772 | 504 | 356 | 182 | 22 | 6 | 9 | 61 | 212 | 497 | 799 | 4,313 |
1974
|
838 | 754 | 556 | 310 | 171 | 42 | 6 | 13 | 94 | 303 | 524 | 795 | 4,406 |
1975
|
821 | 742 | 686 | 449 | 117 | 37 | 5 | 13 | 100 | 235 | 462 | 805 | 4,472 |
1976
|
974 | 609 | 544 | 309 | 178 | 28 | 8 | 19 | 81 | 367 | 668 | 941 | 4,726 |
1977
|
1,188 | 751 | 529 | 270 | 119 | 38 | 6 | 13 | 59 | 295 | 493 | 844 | 4,605 |
1978
|
1,061 | 958 | 677 | 350 | 157 | 31 | 7 | 11 | 59 | 283 | 517 | 847 | 4,958 |
1979
|
1,079 | 950 | 575 | 364 | 148 | 37 | 6 | 15 | 58 | 271 | 528 | 750 | 4,781 |
1980
|
887 | 831 | 680 | 338 | 142 | 49 | 5 | 10 | 54 | 316 | 564 | 831 | 4,707 |
1981
|
984 | 689 | 620 | 260 | 165 | 25 | 6 | 11 | 76 | 327 | 504 | 845 | 4,512 |
1982
|
1,067 | 776 | 620 | 408 | 114 | 62 | 7 | 19 | 75 | 264 | 515 | 692 | 4,619 |
1983
|
874 | 706 | 588 | 421 | 189 | 35 | 6 | 5 | 53 | 251 | 509 | 990 | 4,627 |
1984
|
1,000 | 645 | 704 | 371 | 172 | 28 | 7 | 7 | 88 | 223 | 565 | 704 | 4,514 |
1985
|
1,057 | 807 | 557 | 260 | 123 | 47 | 5 | 17 | 69 | 243 | 506 | 951 | 4,642 |
1986
|
859 | 734 | 542 | 295 | 123 | 30 | 9 | 18 | 76 | 258 | 558 | 793 | 4,295 |
1987
|
920 | 714 | 573 | 309 | 107 | 20 | 8 | 13 | 61 | 345 | 491 | 773 | 4,334 |
1988
|
1,004 | 778 | 594 | 344 | 134 | 30 | 3 | 5 | 72 | 352 | 506 | 831 | 4,653 |
1989
|
789 | 832 | 603 | 344 | 163 | 32 | 5 | 14 | 73 | 259 | 542 | 1,070 | 4,726 |
1990
|
728 | 655 | 535 | 321 | 184 | 29 | 6 | 10 | 56 | 246 | 457 | 789 | 4,016 |
1991
|
921 | 639 | 564 | 287 | 98 | 30 | 6 | 7 | 69 | 242 | 586 | 751 | 4,200 |
1992
|
852 | 644 | 603 | 345 | 152 | 46 | 14 | 24 | 74 | 301 | 564 | 822 | 4,441 |
1993
|
860 | 827 | 664 | 368 | 128 | 38 | 11 | 9 | 89 | 302 | 580 | 824 | 4,700 |
1994
|
1,031 | 813 | 594 | 293 | 174 | 21 | 6 | 16 | 65 | 268 | 479 | 723 | 4,483 |
1995
|
847 | 750 | 556 | 375 | 174 | 31 | 4 | 7 | 77 | 233 | 605 | 872 | 4,531 |
1996
|
945 | 748 | 713 | 360 | 165 | 27 | 8 | 9 | 72 | 276 | 630 | 760 | 4,713 |
1997
|
932 | 672 | 552 | 406 | 198 | 31 | 7 | 16 | 63 | 273 | 592 | 800 | 4,542 |
1998
|
765 | 623 | 596 | 331 | 109 | 41 | 4 | 5 | 33 | 245 | 482 | 717 | 3,951 |
1999
|
861 | 647 | 645 | 319 | 139 | 31 | 5 | 12 | 62 | 275 | 413 | 760 | 4,169 |
2000
|
886 | 643 | 494 | 341 | 115 | 29 | 12 | 12 | 69 | 244 | 610 | 1,005 | 4,460 |
2001
|
935 | 725 | 669 | 302 | 115 | 29 | 8 | 6 | 69 | 260 | 396 | 689 | 4,203 |
2002
|
776 | 669 | 622 | 281 | 184 | 23 | 3 | 8 | 37 | 298 | 560 | 812 | 4,273 |
2003
|
944 | 801 | 572 | 344 | 165 | 41 | 4 | 5 | 62 | 260 | 477 | 784 | 4,459 |
2004
|
968 | 766 | 495 | 303 | 107 | 37 | 7 | 20 | 47 | 251 | 487 | 802 | 4,290 |
2005
|
859 | 676 | 648 | 305 | 186 | 25 | 3 | 6 | 39 | 236 | 466 | 866 | 4,315 |
2006
|
687 | 731 | 600 | 264 | 137 | 23 | 2 | 9 | 82 | 304 | 467 | 690 | 3,996 |
2007P
|
841 | 853 | 502 | 372 | 111 | 24 | 5 | 7 | 44 | 175 | 521 | 800 | 4,255 |
917 | 732 | 593 | 345 | 159 | 39 | 9 | 15 | 77 | 282 | 539 | 817 | 4,524 | |
Normals1
|
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1Based on calculations of data from 1971 through 2000. | Web Page: For current data, see http://www.eia.doe.gov/emeu/mer/overview.html. | ||||||||||||
P=Preliminary. | Source: U.S. Department of Commerce, National Oceanic and Atmospheric Administration (NOAA), | ||||||||||||
National Climatic Data Center, Asheville, North Carolina, Historical Climatology Series 5-1. | |||||||||||||
Notes: ·This table excludes Alaska and Hawaii. ·Degree-days are relative measurements of outdoor | |||||||||||||
air temperature. Heating degree-days are deviations below the mean daily temperature of 65°F. For | |||||||||||||
example, a weather station recording a mean daily temperature of 40°F would report 25 heating | |||||||||||||
degree-days. ·Temperature information recorded by weather stations is used to calculate State-wide | |||||||||||||
degree-day averages based on resident State population. Beginning in July 2001, data are weighted by the | |||||||||||||
2000 population. The population-weighted State figures are aggregated into Census divisions and the | |||||||||||||
national average. |