Phoenix Greenway : 2026 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, 2026 * = 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 64 56 5.2 5 10.2 10 15.2 15 5.2 5 95 49 83 2 Jan 2 71 55 8.2 13 13.2 23 18.2 33 8.2 13 97 52 81 3 Jan 3 70 50 6.2 20 10.2 34 15.2 49 6.2 20 94 41 72 4 Jan 4 71 49 6.2 26 10.0 44 14.7 63 6.2 26 91 42 69 5 Jan 5 68 51 5.6 31 9.8 53 14.8 78 5.6 31 86 40 66 6 Jan 6 71 45 5.7 37 9.0 62 13.0 91 5.7 37 89 32 62 7 Jan 7 60 51 1.5 39 5.4 68 10.4 102 1.5 39 92 55 74 8 Jan 8 59 44 1.0 40 3.3 71 6.7 108 1.0 40 92 36 70 9 Jan 9 60 36 0.9 41 2.8 74 5.3 114 0.9 41 86 14 44 10 Jan 10 65 34 2.5 43 4.8 79 7.5 121 2.5 43 58 11 32 11 Jan 11 69 42 4.7 48 7.7 86 11.4 132 4.7 48 41 8 23 12 Jan 12 72 41 5.7 53 8.5 95 12.2 145 5.7 53 49 14 29 13 Jan 13 73 42 6.4 60 9.3 104 12.9 158 6.4 60 56 14 34 14 Jan 14 80 43 9.4 69 12.8 117 16.5 174 9.4 69 65 13 39 15 Jan 15 80 49 10.5 80 14.3 131 19.2 193 10.5 80 54 14 34 16 Jan 16 77 43 8.3 88 11.7 143 15.4 209 8.3 88 73 10 41 17 Jan 17 75 41 7.2 95 10.1 153 13.7 222 7.2 95 56 11 32 18 Jan 18 77 42 8.2 103 11.3 164 15.3 238 8.2 103 50 10 28 19 Jan 19 75 42 7.3 111 10.4 175 14.0 252 7.3 111 64 15 39 20 Jan 20 76 43 7.7 118 10.8 186 14.5 266 7.7 118 58 12 34 21 Jan 21 70 41 4.8 123 7.7 193 11.1 277 4.8 123 63 17 40 22 Jan 22 74 45 7.0 130 10.2 204 14.5 292 7.0 130 65 16 37 23 Jan 23 70 52 6.7 137 11.1 215 16.1 308 6.7 137 85 33 50 24 Jan 24 67 46 4.2 141 7.4 222 11.6 319 4.2 141 90 32 61 25 Jan 25 64 40 2.6 144 5.0 227 8.2 328 2.6 144 61 14 34 26 Jan 26 68 37 3.8 148 6.3 233 9.3 337 3.8 148 62 5 28 27 Jan 27 72 40 5.7 153 8.4 242 11.9 349 5.7 153 45 9 25 28 Jan 28 75 44 7.6 161 10.8 253 14.8 364 7.6 161 52 11 28 29 Jan 29 73 45 6.9 168 10.1 263 14.4 378 6.9 168 57 9 32 30 Jan 30 79 42 8.6 176 11.9 275 15.8 394 8.6 176 44 7 24 31 Jan 31 80 47 10.2 187 13.9 288 18.4 412 10.2 187 40 9 22 32 Feb 1 82 46 10.7 197 14.5 303 19.0 431 10.7 197 48 11 26 33 Feb 2 80 50 11.0 208 15.2 318 20.2 451 11.0 208 49 13 30 34 Feb 3 82 48 11.4 220 15.3 333 19.9 471 11.4 220 59 9 31 35 Feb 4 82 51 12.2 232 16.6 350 21.6 493 12.2 232 39 7 18 36 Feb 5 77 51 9.5 241 13.9 364 18.9 512 9.5 241 39 12 20 37 Feb 6 82 50 11.7 253 15.8 380 20.8 533 11.7 253 49 14 26 38 Feb 7 82 50 12.3 265 16.4 396 21.4 554 12.3 265 59 14 34 39 Feb 8 84 48 12.1 277 16.0 412 20.9 575 12.1 277 62 12 33 40 Feb 9 84 51 12.8 290 17.1 429 22.1 597 12.8 290 50 12 29 41 Feb 10 79 50 10.2 300 14.2 443 19.3 616 10.2 300 55 15 31 42 Feb 11 77 58 12.3 313 17.3 461 22.3 639 12.3 313 51 22 38 43 Feb 12 78 51 10.3 323 14.5 475 19.5 658 10.3 323 63 17 37 44 Feb 13 69 55 7.0 330 12.0 487 17.0 675 7.0 330 64 30 44 45 Feb 14 73 48 6.8 337 10.5 498 15.1 690 6.8 337 85 26 55 46 Feb 15 75 47 7.8 345 11.2 509 15.8 706 7.8 345 71 22 42 47 Feb 16 72 55 8.5 353 13.5 522 18.5 725 8.5 353 54 25 39 48 Feb 17 66 50 4.0 357 7.9 530 12.9 737 4.0 357 92 32 59 49 Feb 18 61 45 1.6 359 4.2 535 8.1 746 1.6 359 82 45 62 50 Feb 19 61 41 1.6 360 3.8 538 6.9 752 1.6 360 86 19 49 51 Feb 20 61 46 1.7 362 4.5 543 8.7 761 1.7 362 71 15 39 52 Feb 21 71 39 5.3 367 8.0 551 11.4 773 5.3 367 66 10 35 53 Feb 22 80 50 10.9 378 15.2 566 20.2 793 10.9 378 51 7 25 54 Feb 23 84 50 12.8 391 16.7 583 21.8 815 12.8 391 52 8 25 55 Feb 24 82 50 12.0 403 16.1 599 21.0 836 12.0 403 62 10 30 56 Feb 25 86 54 14.9 418 19.9 619 24.9 860 14.9 418 57 14 31 --- ------ --- --- ---- ---- ---- ---- ---- ---- ---- ---- --- --- --- 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