National Weather Service United States Department of Commerce
Seasonal Heating Degree Days
1930-1950
Normals 1991-2020
Season July Aug Sept Oct Nov Dec Jan Feb Mar Apr May June Total
1930-31 0 0 15 117 439 736 630 475 532 223 44 0 3211
1931-32 0 0 0 53 300 690 680 336 517 104 33 0 2713
1932-33 0 0 30 201 543 812 555 591 282 164 28 0 3206
1933-34 0 0 0 9 306 462 611 454 356 83 14 0 2295
1934-35 0 1 0 17 284 556 525 504 208 69 75 0 2239
1935-36 0 0 30 109 393 634 714 642 225 173 1 0 2921
1936-37 0 0 49 188 489 561 771 508 489 113 7 0 2875
1937-38 0 0 3 73 436 638 617 375 199 162 22 0 2525
1938-39 0 0 0 73 492 671 615 634 233 123 18 0 2859
1939-40 0 0 3 79 433 560 882 484 243 138 4 0 2826
1940-41 0 0 3 64 436 532 586 493 479 154 23 1 2771
1941-42 0 0 3 93 350 557 719 507 368 104 17 0 2718
1942-43 0 0 35 97 258 535 642 394 342 36 52 0 2391
1943-44 0 0 18 95 390 705 689 436 357 113 17 0 2820
1944-45 0 0 1 80 359 713 578 427 182 130 20 1 2491
1945-46 0 0 36 124 272 633 729 425 221 23 13 0 2476
1946-47 0 0 2 21 290 470 702 567 353 109 16 0 2530
1947-48 0 0 0 9 415 594 660 527 406 34 11 0 2656
1948-49 0 0 12 97 426 456 915 430 267 182 0 0 2785
1949-50 0 0 3 157 240 573 454 330 284 121 17 0 2179
Average
1991-2020
0 0 7 83 334 577 600 420 249 85 14 0 2369