Heizgradtage 2009 - Ausgewählte Monatswerte
| Station | Jan. | Feb. | Mär. | Apr. | Mai | Juni | Juli | Aug. | Sept. | Okt. | Nov. | Dez. | Total |
| Adelboden | 743 | 642 | 617 | 399 | 205 | 161 | 80 | 37 | 161 | 379 | 458 | 688 | 4570 |
| Aigle | 622 | 523 | 446 | 149 | 19 | 0 | 0 | 0 | 0 | 245 | 344 | 525 | 2872 |
| Altdorf | 630 | 499 | 473 | 172 | 40 | 17 | 0 | 0 | 0 | 238 | 350 | 554 | 2974 |
| Basel-Binningen | 644 | 505 | 432 | 112 | 19 | 0 | 0 | 0 | 0 | 236 | 334 | 544 | 2825 |
| Bern / Zollikofen | 708 | 571 | 494 | 207 | 48 | 17 | 0 | 0 | 26 | 295 | 399 | 598 | 3364 |
| Buchs-Aarau | 670 | 538 | 465 | 129 | 22 | 8 | 0 | 0 | 25 | 290 | 393 | 582 | 3122 |
| La Chaux-de-Fonds | 771 | 622 | 583 | 370 | 140 | 104 | 54 | 18 | 80 | 374 | 432 | 638 | 4185 |
| Chur | 646 | 516 | 469 | 128 | 21 | 8 | 9 | 0 | 0 | 239 | 345 | 582 | 2963 |
| Cimetta | 698 | 636 | 603 | 473 | 263 | 145 | 76 | 18 | 203 | 424 | 524 | 714 | 4776 |
| Davos | 834 | 716 | 694 | 470 | 298 | 251 | 132 | 52 | 268 | 487 | 563 | 800 | 5565 |
| Disentis / Sedrun | 711 | 628 | 606 | 373 | 158 | 110 | 48 | 17 | 52 | 372 | 452 | 704 | 4229 |
| La Dôle | 738 | 685 | 689 | 487 | 319 | 271 | 171 | 98 | 264 | 445 | 531 | 738 | 5436 |
| Engelberg | 758 | 620 | 599 | 323 | 159 | 94 | 64 | 27 | 113 | 390 | 452 | 682 | 4281 |
| Fahy | 659 | 557 | 497 | 204 | 66 | 25 | 8 | 0 | 29 | 303 | 344 | 570 | 3261 |
| Col du Gd-St-Bernard | 884 | 830 | 811 | 661 | 515 | 432 | 341 | 251 | 421 | 593 | 671 | 878 | 7288 |
| Genève-Cointrin | 628 | 510 | 424 | 110 | 9 | 0 | 0 | 0 | 0 | 239 | 358 | 548 | 2827 |
| Glarus | 699 | 552 | 512 | 166 | 41 | 28 | 10 | 0 | 26 | 278 | 385 | 605 | 3301 |
| Gütsch ob Andermatt | 837 | 793 | 789 | 615 | 483 | 420 | 335 | 226 | 393 | 573 | 641 | 850 | 6954 |
| Güttingen | 663 | 541 | 474 | 137 | 21 | 8 | 0 | 0 | 9 | 256 | 399 | 577 | 3084 |
| Interlaken | 693 | 549 | 496 | 172 | 39 | 26 | 9 | 0 | 0 | 269 | 416 | 597 | 3265 |
| Jungfraujoch Sphinx | 1051 | 1010 | 1016 | 866 | 733 | 676 | 614 | 556 | 635 | 809 | 851 | 1076 | 9894 |
| Locarno / Monti | 541 | 427 | 306 | 132 | 0 | 0 | 0 | 0 | 0 | 143 | 351 | 523 | 2422 |
| Lugano | 539 | 422 | 327 | 124 | 0 | 0 | 0 | 0 | 0 | 144 | 335 | 510 | 2401 |
| Luzern | 659 | 542 | 471 | 139 | 31 | 18 | 0 | 0 | 0 | 262 | 394 | 585 | 3100 |
| Le Moléson | 742 | 704 | 724 | 521 | 363 | 341 | 227 | 144 | 323 | 486 | 558 | 764 | 5896 |
| Montana | 726 | 651 | 612 | 406 | 242 | 130 | 69 | 9 | 105 | 389 | 487 | 709 | 4533 |
| Napf | 734 | 654 | 656 | 422 | 222 | 230 | 99 | 49 | 227 | 422 | 475 | 708 | 4898 |
| Neuchâtel | 656 | 527 | 444 | 132 | 19 | 0 | 0 | 0 | 0 | 231 | 364 | 549 | 2923 |
| Payerne | 696 | 556 | 469 | 202 | 47 | 0 | 0 | 0 | 17 | 277 | 390 | 579 | 3233 |
| Pilatus | 774 | 744 | 761 | 534 | 412 | 393 | 274 | 181 | 356 | 524 | 586 | 801 | 6338 |
| Pully | 610 | 505 | 430 | 122 | 9 | 0 | 0 | 0 | 0 | 208 | 328 | 524 | 2736 |
| Poschiavo / Robbia | 730 | 569 | 517 | 350 | 103 | 46 | 0 | 0 | 88 | 329 | 492 | 673 | 3897 |
| Rünenberg | 683 | 556 | 494 | 165 | 66 | 27 | 8 | 0 | 29 | 302 | 368 | 581 | 3279 |
| Samedan-Flugplatz | 977 | 776 | 721 | 524 | 340 | 231 | 136 | 65 | 298 | 532 | 612 | 898 | 6110 |
| San Bernardino | 769 | 678 | 648 | 500 | 330 | 191 | 109 | 37 | 242 | 466 | 566 | 772 | 5308 |
| Säntis | 862 | 831 | 853 | 635 | 522 | 504 | 426 | 344 | 453 | 630 | 673 | 887 | 7620 |
| Schaffhausen | 693 | 544 | 478 | 124 | 22 | 8 | 0 | 0 | 9 | 282 | 418 | 597 | 3175 |
| Scuol | 820 | 671 | 612 | 381 | 143 | 120 | 47 | 0 | 70 | 407 | 531 | 786 | 4587 |
| Sion | 705 | 532 | 438 | 113 | 26 | 0 | 0 | 0 | 0 | 245 | 398 | 588 | 3045 |
| St. Gallen | 701 | 574 | 538 | 209 | 115 | 58 | 10 | 0 | 39 | 315 | 374 | 602 | 3534 |
| Stabio | 625 | 466 | 377 | 146 | 0 | 0 | 0 | 0 | 0 | 191 | 377 | 589 | 2772 |
| Aadorf / Tänikon | 704 | 566 | 500 | 203 | 33 | 18 | 0 | 0 | 35 | 284 | 409 | 596 | 3350 |
| Vaduz | 669 | 510 | 465 | 104 | 38 | 18 | 9 | 0 | 17 | 228 | 327 | 529 | 2913 |
| Visp | 767 | 526 | 464 | 158 | 36 | 0 | 0 | 0 | 0 | 266 | 415 | 614 | 3245 |
| Wädenswil | 661 | 545 | 484 | 159 | 39 | 18 | 0 | 0 | 8 | 250 | 386 | 575 | 3125 |
| Weissfluh- joch | 899 | 877 | 883 | 682 | 561 | 521 | 433 | 355 | 468 | 653 | 697 | 917 | 7947 |
| Wynau | 689 | 567 | 485 | 192 | 40 | 9 | 0 | 0 | 25 | 295 | 403 | 594 | 3299 |
| Zermatt | 794 | 709 | 657 | 462 | 291 | 178 | 81 | 27 | 221 | 449 | 558 | 784 | 5210 |
| Zürich / Kloten | 680 | 551 | 480 | 150 | 31 | 8 | 0 | 0 | 25 | 294 | 408 | 590 | 3216 |
| Zürich / Fluntern | 679 | 550 | 489 | 155 | 40 | 18 | 0 | 0 | 17 | 269 | 383 | 586 | 3186 |
Quelle: MeteoSchweiz