National Weather Service United States Department of Commerce
Seasonal Heating Degrees Days
1950-1970
Normals 1991-2020
Season July Aug Sept Oct Nov Dec Jan Feb Mar Apr May June Total
1950-51 0 0 0 4 338 581 688 430 333 148 15 5 2542
1951-52 0 0 4 46 412 513 421 402 356 78 29 0 2261
1952-53 0 0 17 98 430 605 398 488 160 85 58 0 2339
1953-54 0 0 0 86 338 722 550 309 339 48 50 0 2442
1954-55 0 0 0 105 319 517 678 504 277 69 3 3 2475
1955-56 0 0 0 74 383 512 604 542 263 146 0 0 2524
1956-57 0 0 0 54 439 536 617 301 293 175 25 10 2450
1957-58 0 0 2 155 530 504 709 566 522 176 16 0 3180
1958-59 0 0 10 161 338 664 686 501 341 179 6 0 2886
1959-60 0 0 9 110 534 556 666 643 426 84 28 0 3056
1960-61 0 0 2 64 307 758 761 474 293 124 5 4 2792
1961-62 0 0 12 66 481 625 796 309 394 96 7 0 2786
1962-63 0 0 2 74 299 595 773 487 233 45 19 0 2527
1963-64 0 0 1 3 274 761 656 643 287 63 5 0 2693
1964-65 0 0 6 34 283 493 535 604 529 52 5 0 2541
1965-66 0 0 11 96 232 468 831 621 258 124 46 0 2687
1966-67 0 3 4 159 242 663 654 516 176 23 22 0 2462
1967-68 0 0 9 95 324 708 634 582 360 143 14 0 2869
1968-69 0 0 0 60 456 665 535 467 534 52 30 0 2799
1969-70 0 0 0 216 405 532 706 482 463 137 48 5 2994
Average
1991-2020
0 0 7 83 334 577 600 420 249 85 14 0 2369