Phoenix Greenway : 2025 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, 2025 * = 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 71 39 5.1 5 7.9 8 11.1 11 5.1 5 69 18 41 2 Jan 2 77 41 7.9 13 11.1 19 14.7 26 7.9 13 60 10 32 3 Jan 3 76 43 7.7 21 10.9 30 14.6 40 7.7 21 50 12 30 4 Jan 4 70 42 4.8 26 7.7 38 11.2 52 4.8 26 47 14 29 5 Jan 5 69 39 4.5 30 7.1 45 10.3 62 4.5 30 53 9 28 6 Jan 6 69 41 4.5 35 7.3 52 10.6 73 4.5 35 43 10 25 7 Jan 7 69 40 4.3 39 6.9 59 10.3 83 4.3 39 41 10 22 8 Jan 8 65 44 3.1 42 6.0 65 9.5 92 3.1 42 69 18 26 9 Jan 9 63 36 2.0 44 4.1 69 6.8 99 2.0 44 74 13 41 10 Jan 10 64 39 2.3 46 4.7 74 7.6 107 2.3 46 53 7 23 11 Jan 11 62 34 1.4 48 3.3 77 6.0 113 1.4 48 44 11 25 12 Jan 12 62 34 1.6 49 3.7 81 6.2 119 1.6 49 46 9 25 13 Jan 13 60 33 1.0 50 2.8 84 5.2 124 1.0 50 45 12 27 14 Jan 14 66 32 2.6 53 4.7 88 7.4 132 2.6 53 49 7 24 15 Jan 15 71 39 4.8 58 7.5 96 10.9 142 4.8 58 38 9 18 16 Jan 16 73 42 6.4 64 9.3 105 12.9 155 6.4 64 39 13 21 17 Jan 17 64 45 2.9 67 5.8 111 9.7 165 2.9 67 56 19 36 18 Jan 18 64 38 2.4 69 4.7 116 7.7 173 2.4 69 55 18 35 19 Jan 19 64 36 2.2 72 4.5 120 7.2 180 2.2 72 56 13 31 20 Jan 20 65 34 2.5 74 4.6 125 7.3 187 2.5 74 50 5 22 21 Jan 21 60 34 0.8 75 2.6 127 5.1 192 0.8 75 24 2 8 22 Jan 22 62 32 1.5 76 3.4 131 5.8 198 1.5 76 33 4 16 23 Jan 23 64 36 2.1 78 4.3 135 7.1 205 2.1 78 29 4 11 24 Jan 24 67 33 3.3 82 5.5 140 8.1 213 3.3 82 31 3 11 25 Jan 25 67 39 3.5 85 6.0 146 9.2 223 3.5 85 29 3 13 26 Jan 26 68 41 4.1 89 6.8 153 10.1 233 4.1 89 31 9 18 27 Jan 27 60 41 1.0 90 3.0 156 5.9 239 1.0 90 69 26 46 28 Jan 28 60 40 1.0 91 3.1 159 6.0 245 1.0 91 82 26 55 29 Jan 29 57 40 0.2 92 1.8 161 4.5 249 0.2 92 80 37 60 30 Jan 30 60 36 1.1 93 3.0 164 5.6 255 1.1 93 85 35 59 31 Jan 31 67 37 3.5 96 5.9 170 8.8 263 3.5 96 79 25 50 32 Feb 1 73 41 5.9 102 8.9 179 12.4 276 5.9 102 65 16 39 33 Feb 2 78 45 8.9 111 12.3 191 16.4 292 8.9 111 51 14 30 34 Feb 3 85 46 12.3 123 16.0 207 20.2 312 12.3 123 62 14 35 35 Feb 4 84 50 12.7 136 16.9 224 21.9 334 12.7 136 55 10 29 36 Feb 5 78 51 10.1 146 14.4 239 19.4 354 10.1 146 48 13 28 37 Feb 6 77 44 8.2 154 11.6 250 15.5 369 8.2 154 54 11 29 38 Feb 7 75 50 8.4 163 12.4 263 17.3 387 8.4 163 56 20 36 39 Feb 8 77 53 10.1 173 14.8 277 19.8 406 10.1 173 63 21 43 40 Feb 9 75 48 7.8 181 11.5 289 16.3 423 7.8 181 64 23 39 41 Feb 10 76 48 8.4 189 12.1 301 16.9 440 8.4 189 53 7 28 42 Feb 11 66 48 3.8 193 7.1 308 11.8 451 3.8 193 48 11 29 43 Feb 12 60 47 1.2 194 3.9 312 8.1 459 1.2 194 59 27 40 44 Feb 13 68 44 4.2 198 7.1 319 11.0 470 4.2 198 76 26 46 45 Feb 14 70 52 6.3 204 10.7 330 15.7 486 6.3 204 86 24 54 46 Feb 15 69 42 4.7 209 7.7 337 11.2 497 4.7 209 72 23 44 47 Feb 16 74 45 7.1 216 10.5 348 14.6 512 7.1 216 59 12 33 48 Feb 17 75 48 7.7 224 11.5 359 16.1 528 7.7 224 42 11 26 49 Feb 18 75 46 7.7 232 11.1 371 15.5 544 7.7 232 56 14 28 50 Feb 19 77 46 8.6 240 12.0 383 16.4 560 8.6 240 52 11 28 51 Feb 20 78 47 9.0 249 12.8 395 17.2 577 9.0 249 40 10 23 52 Feb 21 76 46 8.2 257 11.5 407 15.9 593 8.2 257 45 10 23 53 Feb 22 78 46 8.8 266 12.4 419 16.7 610 8.8 266 41 9 23 54 Feb 23 81 44 10.2 276 13.8 433 17.7 627 10.2 276 44 7 21 55 Feb 24 84 48 12.5 289 16.4 449 21.0 648 12.5 289 37 7 19 56 Feb 25 87 51 14.4 303 18.6 468 23.6 672 14.4 303 39 7 20 57 Feb 26 87 53 15.2 319 19.9 488 24.9 697 15.3 319 43 4 18 58 Feb 27 81 61 16.1 335 21.1 509 26.1 723 16.1 335 19 5 10 59 Feb 28 79 53 11.2 346 15.8 525 20.8 744 11.2 346 33 7 15 60 Mar 1 80 48 10.5 356 14.5 539 19.2 763 10.5 356 35 6 18 61 Mar 2 77 52 9.9 366 14.6 554 19.6 783 9.9 366 50 14 33 62 Mar 3 64 47 2.9 369 6.0 560 10.5 793 2.9 369 54 23 36 63 Mar 4 69 42 4.7 374 7.7 568 11.2 804 4.7 374 69 18 40 64 Mar 5 74 46 7.2 381 10.6 578 14.9 819 7.2 381 48 15 30 65 Mar 6 68 57 7.1 388 12.2 590 17.2 836 7.1 388 55 15 30 66 Mar 7 58 45 0.6 389 2.9 593 6.4 843 0.6 389 94 34 73 67 Mar 8 67 42 3.6 392 6.3 600 9.8 853 3.6 392 95 26 60 68 Mar 9 77 44 8.0 400 11.2 611 15.3 868 8.0 400 78 12 41 69 Mar 10 83 49 11.9 412 15.9 627 20.9 889 11.9 412 56 6 27 70 Mar 11 77 52 9.8 422 14.3 641 19.3 908 9.8 422 74 10 34 71 Mar 12 71 53 7.1 429 11.8 653 16.8 925 7.1 429 81 36 57 72 Mar 13 70 48 5.6 435 8.9 662 13.6 939 5.6 435 93 28 57 73 Mar 14 56 41 0.1 435 1.7 663 4.5 943 0.1 435 84 36 61 74 Mar 15 67 44 3.9 439 6.8 670 10.5 954 3.9 439 91 22 57 75 Mar 16 73 44 6.7 445 9.9 680 13.8 967 6.7 446 79 19 44 76 Mar 17 79 51 10.9 456 15.1 695 20.1 987 10.9 456 70 16 38 77 Mar 18 69 54 6.8 463 11.8 707 16.8 1004 6.8 463 46 13 24 78 Mar 19 71 50 6.8 470 10.9 718 15.9 1020 6.8 470 45 7 19 79 Mar 20 78 44 9.0 479 12.2 730 16.3 1036 9.0 479 50 4 20 80 Mar 21 82 47 11.2 490 14.8 745 19.5 1056 11.2 490 49 6 22 81 Mar 22 83 52 12.7 503 17.3 762 22.3 1078 12.7 503 40 9 21 82 Mar 23 86 55 15.4 518 20.3 783 25.3 1104 15.4 518 52 10 25 83 Mar 24 93 57 18.7 537 23.7 806 28.7 1132 19.8 538 48 8 25 84 Mar 25 97 58 19.8 557 24.8 831 29.8 1162 22.0 560 52 5 22 85 Mar 26 91 64 21.6 578 26.6 858 31.6 1194 22.6 583 42 9 21 86 Mar 27 89 59 18.6 597 23.6 881 28.6 1222 19.0 602 46 9 25 87 Mar 28 79 60 14.5 611 19.5 901 24.5 1247 14.5 616 44 8 22 88 Mar 29 77 58 12.5 624 17.5 918 22.5 1269 12.5 629 47 11 26 89 Mar 30 80 54 11.7 636 16.7 935 21.7 1291 11.7 640 48 7 25 90 Mar 31 79 58 13.1 649 18.1 953 23.1 1314 13.1 654 64 24 40 91 Apr 1 71 55 8.3 657 13.3 966 18.3 1332 8.3 662 45 7 27 92 Apr 2 64 51 3.5 661 7.4 974 12.4 1345 3.5 665 72 27 45 93 Apr 3 68 46 4.5 665 7.5 981 11.8 1357 4.5 670 69 16 40 94 Apr 4 69 47 5.4 670 8.7 990 13.3 1370 5.4 675 60 17 34 95 Apr 5 77 47 8.9 679 12.6 1003 17.2 1387 8.9 684 62 11 31 96 Apr 6 79 50 10.4 690 14.4 1017 19.5 1407 10.4 695 53 9 28 97 Apr 7 86 53 14.6 704 19.2 1036 24.2 1431 14.6 709 42 6 21 98 Apr 8 90 54 16.6 721 21.4 1058 26.4 1457 17.1 726 38 4 17 99 Apr 9 94 56 18.6 740 23.6 1081 28.6 1486 20.3 747 41 5 16 100 Apr 10 97 59 20.5 760 25.5 1107 30.5 1516 22.7 769 41 3 16 101 Apr 11 98 61 21.6 782 26.6 1133 31.6 1548 24.0 793 34 2 14 102 Apr 12 96 60 20.9 803 25.9 1159 30.9 1579 23.0 816 39 3 14 103 Apr 13 91 65 22.2 825 27.2 1186 32.2 1611 23.1 839 33 4 14 104 Apr 14 90 66 22.2 847 27.2 1214 32.2 1643 22.9 862 39 5 16 105 Apr 15 91 62 20.6 868 25.6 1239 30.6 1674 21.4 884 41 10 21 106 Apr 16 89 59 18.7 886 23.7 1263 28.7 1702 19.2 903 39 7 19 107 Apr 17 76 61 13.4 900 18.4 1281 23.5 1726 13.4 916 60 23 37 108 Apr 18 73 50 7.8 907 11.7 1293 16.7 1743 7.8 924 87 24 44 --- ------ --- --- ---- ---- ---- ---- ---- ---- ---- ---- --- --- --- DOY Date Max Min HU CUM HU CUM HU CUM HU CUM Max Min Ave ========== ========== ========== ========== =========== 86/55 86/50 86/45 94/55 RH Phoenix Greenway