Tucson : 2024 Heat Units DOY = Day Of Year (1 to 365) Max = Maximum Air Temperature Min = Minimum Air Temperature HU = Daily Heat Units CUM = Accumulated Heat Units : Since Jan 1, 2024 * = Missing data. Max, Min Temps and Heat Units Estimated. Temperature and Heat Units are in Fahrenheit Units Heat Units calculated by Single Sine Method 86/55 86/50 86/45 94/55 RH ========== ========== ========== ========== =========== DOY Date Max Min HU CUM HU CUM HU CUM HU CUM Max Min Ave --- ------ --- --- ---- ---- ---- ---- ---- ---- ---- ---- --- --- --- 1 Jan 1 68 31 3.4 3 5.7 6 8.2 8 3.4 3 90 15 56 2 Jan 2 62 39 1.7 5 4.0 10 6.8 15 1.7 5 98 37 66 3 Jan 3 67 32 3.0 8 5.3 15 7.9 23 3.0 8 97 28 63 4 Jan 4 52 33 0.0 8 0.3 15 2.0 25 0.0 8 96 45 74 5 Jan 5 57 32 0.2 8 1.5 17 3.6 29 0.2 8 96 32 65 6 Jan 6 59 30 0.7 9 2.3 19 4.4 33 0.7 9 95 26 62 7 Jan 7 57 32 0.2 9 1.5 21 3.5 36 0.2 9 93 17 60 8 Jan 8 46 23 0.0 9 0.0 21 0.1 37 0.0 9 94 28 56 9 Jan 9 54 22 0.0 9 0.7 21 2.1 39 0.0 9 92 18 62 10 Jan 10 62 24 1.4 11 3.0 24 5.1 44 1.4 11 93 17 55 11 Jan 11 54 28 0.0 11 0.7 25 2.4 46 0.0 11 86 30 54 12 Jan 12 59 23 0.6 11 2.0 27 3.9 50 0.6 11 93 15 56 13 Jan 13 68 25 2.9 14 5.0 32 7.3 57 2.9 14 86 9 45 14 Jan 14 69 31 3.6 18 6.0 38 8.7 66 3.6 18 74 16 43 15 Jan 15 68 29 3.4 21 5.7 44 8.1 74 3.4 21 90 19 52 16 Jan 16 70 29 3.9 25 6.1 50 8.7 83 3.9 25 89 15 53 17 Jan 17 74 33 5.8 31 8.3 58 11.2 94 5.8 31 77 11 45 18 Jan 18 76 35 6.9 38 9.6 68 12.7 107 6.9 38 76 13 43 19 Jan 19 78 35 7.7 45 10.6 78 13.9 121 7.7 45 81 12 48 20 Jan 20 74 40 6.6 52 9.4 88 13.0 134 6.6 52 75 15 45 21 Jan 21 58 50 0.8 53 3.8 92 8.7 142 0.8 53 98 47 88 22 Jan 22 61 47 1.6 54 4.4 96 8.8 151 1.6 54 99 51 81 23 Jan 23 59 47 1.0 55 3.7 100 8.1 159 1.0 55 98 52 86 24 Jan 24 60 44 1.2 57 3.7 103 7.3 167 1.2 57 98 55 84 25 Jan 25 65 41 2.8 59 5.3 109 8.6 175 2.8 59 99 40 75 26 Jan 26 63 44 2.1 62 4.8 113 8.3 183 2.1 62 98 44 75 27 Jan 27 70 36 4.5 66 6.9 120 10.0 193 4.5 66 99 20 54 28 Jan 28 76 40 7.0 73 10.0 130 13.4 207 7.0 73 87 16 50 29 Jan 29 82 39 9.7 83 12.9 143 16.2 223 9.7 83 94 12 58 30 Jan 30 81 40 9.5 92 12.7 156 16.2 239 9.5 92 94 14 59 31 Jan 31 79 41 8.6 101 11.8 168 15.4 255 8.6 101 93 18 59 32 Feb 1 79 50 10.4 111 14.4 182 19.5 274 10.4 111 80 20 47 33 Feb 2 58 46 0.7 112 3.1 185 7.3 281 0.7 112 94 43 71 34 Feb 3 60 39 1.0 113 3.0 188 5.8 287 1.0 113 98 33 69 35 Feb 4 75 38 6.6 120 9.5 198 12.7 300 6.6 120 90 9 55 36 Feb 5 76 39 7.3 127 10.2 208 13.8 314 7.3 127 85 16 49 37 Feb 6 71 51 6.4 133 10.6 219 15.6 329 6.4 133 93 19 44 38 Feb 7 56 42 0.1 133 1.8 220 4.7 334 0.1 133 95 48 79 39 Feb 8 60 38 1.0 134 2.9 223 5.7 340 1.0 134 98 31 73 40 Feb 9 60 35 0.9 135 2.7 226 5.1 345 0.9 135 100 34 71 41 Feb 10 51 39 0.0 135 0.1 226 1.8 347 0.0 135 95 50 79 42 Feb 11 56 36 0.1 135 1.4 227 3.6 350 0.1 135 98 41 72 43 Feb 12 69 32 3.7 139 6.1 234 8.8 359 3.7 139 96 17 64 44 Feb 13 75 36 6.3 145 9.0 243 12.1 371 6.3 145 94 10 57 45 Feb 14 71 36 4.8 150 7.3 250 10.5 382 4.8 150 93 11 55 46 Feb 15 77 36 7.1 157 10.1 260 13.3 395 7.1 157 85 8 49 47 Feb 16 73 38 5.7 163 8.3 268 11.7 407 5.7 163 85 19 50 48 Feb 17 75 39 6.7 170 9.7 278 13.1 420 6.7 170 85 18 54 49 Feb 18 77 42 8.1 178 11.2 289 14.9 435 8.1 178 85 14 51 50 Feb 19 82 43 10.0 188 13.4 303 17.3 452 10.0 188 78 10 43 51 Feb 20 85 39 11.4 199 14.3 317 17.9 470 11.4 199 72 5 35 52 Feb 21 71 46 6.0 205 9.2 326 13.7 484 6.0 205 77 16 41 53 Feb 22 70 43 5.1 210 8.2 334 11.8 495 5.1 210 88 27 56 54 Feb 23 74 43 6.9 217 10.0 344 13.5 509 6.9 217 86 25 55 55 Feb 24 82 41 10.1 227 13.3 358 17.2 526 10.1 227 85 9 46 56 Feb 25 89 48 14.4 242 18.6 376 23.3 549 14.8 242 77 13 43 57 Feb 26 74 62 13.1 255 18.1 394 23.1 572 13.1 255 64 25 43 58 Feb 27 75 56 10.2 265 15.2 409 20.2 593 10.2 265 62 23 37 59 Feb 28 72 46 6.2 271 9.7 419 13.9 607 6.2 272 95 34 73 60 Feb 29 71 44 5.7 277 9.0 428 12.7 619 5.7 277 98 25 66 61 Mar 1 81 43 9.8 287 13.1 441 16.9 636 9.8 287 92 15 53 62 Mar 2 77 44 8.4 295 11.8 453 15.7 652 8.4 295 81 6 37 63 Mar 3 73 44 6.4 301 9.7 463 13.6 665 6.4 302 66 19 38 64 Mar 4 73 44 6.7 308 9.7 472 13.6 679 6.7 309 88 26 53 65 Mar 5 78 46 9.1 317 12.5 485 16.9 696 9.1 318 76 13 47 66 Mar 6 71 48 6.0 323 9.7 495 14.5 710 6.0 324 73 17 43 67 Mar 7 66 42 3.3 327 6.0 501 9.4 720 3.3 327 94 31 64 68 Mar 8 65 47 3.5 330 6.6 507 11.0 731 3.5 330 95 41 73 69 Mar 9 73 40 6.1 336 8.9 516 12.5 743 6.1 337 96 22 61 70 Mar 10 78 41 8.2 344 11.1 527 14.8 758 8.2 345 92 14 47 71 Mar 11 79 44 9.3 354 12.9 540 16.9 775 9.3 354 71 12 37 72 Mar 12 79 43 8.9 363 12.1 552 16.0 791 8.9 363 81 11 38 73 Mar 13 73 46 6.8 369 10.1 562 14.5 806 6.8 370 71 21 42 74 Mar 14 75 45 7.7 377 10.9 573 15.1 821 7.7 377 79 20 43 75 Mar 15 67 49 4.5 382 8.0 581 12.9 834 4.5 382 81 34 54 76 Mar 16 69 41 4.2 386 7.1 588 10.5 844 4.2 386 97 22 57 77 Mar 17 70 40 4.8 391 7.4 596 10.8 855 4.8 391 84 22 50 78 Mar 18 78 40 8.0 399 11.2 607 14.7 870 8.0 399 84 14 50 79 Mar 19 75 44 7.4 406 10.6 618 14.5 884 7.4 406 85 15 46 80 Mar 20 75 46 7.8 414 11.4 629 15.7 900 7.8 414 69 17 39 81 Mar 21 77 48 8.9 423 12.5 641 17.3 917 8.9 423 67 19 40 82 Mar 22 84 46 11.6 434 15.1 657 19.5 937 11.6 435 70 10 35 83 Mar 23 78 56 11.9 446 16.9 673 21.9 958 11.9 447 56 15 31 84 Mar 24 63 46 2.6 449 5.4 679 9.6 968 2.6 449 94 27 53 85 Mar 25 63 43 2.4 451 5.1 684 8.6 977 2.4 452 93 27 58 86 Mar 26 66 46 3.6 455 6.7 691 10.8 987 3.6 455 93 23 58 87 Mar 27 73 41 6.0 461 9.0 700 12.3 1000 6.0 461 96 18 56 88 Mar 28 81 42 9.7 470 13.0 713 16.9 1017 9.7 471 91 11 45 89 Mar 29 82 52 12.7 483 17.3 730 22.3 1039 12.7 484 65 7 30 90 Mar 30 82 54 13.1 496 18.0 748 23.0 1062 13.1 497 47 11 25 91 Mar 31 65 48 3.6 500 6.9 755 11.8 1074 3.6 500 96 32 71 92 Apr 1 59 46 0.8 501 3.3 758 7.2 1081 0.8 501 96 52 81 93 Apr 2 69 44 4.8 505 7.8 766 11.6 1093 4.8 506 98 35 67 94 Apr 3 78 45 9.0 514 12.4 778 16.6 1109 9.0 515 93 18 54 95 Apr 4 87 47 13.6 528 17.2 796 21.8 1131 13.7 529 89 6 40 96 Apr 5 77 53 10.0 538 14.7 810 19.7 1151 10.0 539 54 12 32 97 Apr 6 64 44 2.8 541 5.6 816 9.3 1160 2.8 541 65 9 34 98 Apr 7 76 37 7.1 548 9.8 826 13.1 1173 7.1 548 77 7 35 99 Apr 8 72 45 6.4 554 9.7 835 13.8 1187 6.4 555 67 13 31 100 Apr 9 77 48 8.7 563 12.3 848 17.2 1204 8.7 564 56 15 27 101 Apr 10 82 46 10.9 574 14.5 862 19.1 1223 10.9 574 64 8 29 102 Apr 11 94 46 15.0 589 19.0 881 23.3 1246 16.5 591 64 6 28 103 Apr 12 88 52 15.5 604 20.0 901 25.0 1271 15.7 607 53 6 23 104 Apr 13 87 51 14.3 619 18.8 920 23.8 1295 14.4 621 52 7 24 105 Apr 14 86 52 14.5 633 19.1 939 24.1 1319 14.5 636 53 4 24 106 Apr 15 74 51 8.1 641 12.2 951 17.2 1337 8.1 644 62 13 30 107 Apr 16 84 44 11.5 653 15.1 966 19.3 1356 11.5 655 60 10 27 108 Apr 17 90 48 14.6 667 18.6 985 23.5 1379 15.1 670 57 2 24 109 Apr 18 94 51 16.7 684 21.0 1006 26.0 1405 18.3 689 50 5 23 110 Apr 19 93 56 18.0 702 23.0 1029 28.0 1433 19.4 708 47 5 20 111 Apr 20 92 52 16.4 719 21.1 1050 26.1 1459 17.4 725 47 5 19 112 Apr 21 95 53 17.3 736 21.9 1072 26.9 1486 19.0 744 49 6 22 113 Apr 22 96 56 18.8 755 23.8 1096 28.8 1515 20.8 765 48 7 23 114 Apr 23 91 57 18.4 773 23.4 1119 28.4 1544 19.3 784 47 10 22 115 Apr 24 86 58 17.1 790 22.1 1141 27.1 1571 17.1 802 47 7 23 116 Apr 25 79 52 10.7 801 15.3 1157 20.3 1591 10.7 812 53 16 29 117 Apr 26 81 53 12.5 813 17.3 1174 22.3 1613 12.5 825 57 12 31 118 Apr 27 76 55 10.5 824 15.5 1189 20.5 1634 10.5 835 56 18 35 119 Apr 28 81 49 11.2 835 15.2 1205 20.1 1654 11.2 846 59 10 30 --- ------ --- --- ---- ---- ---- ---- ---- ---- ---- ---- --- --- --- DOY Date Max Min HU CUM HU CUM HU CUM HU CUM Max Min Ave ========== ========== ========== ========== =========== 86/55 86/50 86/45 94/55 RH Tucson