The GDD models have only been “ground-truthed” in the Great Lakes region. Use of models outside of this region, including the North East, Great Plains and Transition Zones, should be used with caution. We do not recommend the GDD models we use for the mid/southern transition zone and southern states.
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Daily GDD accumulation for various base temperature models in 2024 & 2023
2024 | Lo (F) | Hi (F) | GDD 22 | GDD 32 | GDD 42 | GDD 50 | GDD 55 |
---|---|---|---|---|---|---|---|
02-15 | 16° | 28° | 0 | 0 | 0 | 0 | 0 |
02-16 | 10° | 19° | 0 | 0 | 0 | 0 | 0 |
02-17 | 7° | 28° | 0 | 0 | 0 | 0 | 0 |
02-18 | 22° | 35° | 7 | 0 | 0 | 0 | 0 |
02-19 | 20° | 39° | 14 | 0 | 0 | 0 | 0 |
02-20 | 29° | 44° | 29 | 5 | 0 | 0 | 0 |
02-21 | 23° | 48° | 42 | 8 | 0 | 0 | 0 |
02-22 | 28° | 50° | 60 | 15 | 0 | 0 | 0 |
02-23 | 22° | 35° | 66 | 15 | 0 | 0 | 0 |
02-24 | 17° | 45° | 75 | 15 | 0 | 0 | 0 |
02-25 | 32° | 48° | 93 | 23 | 0 | 0 | 0 |
02-26 | 29° | 63° | 117 | 37 | 4 | 0 | 0 |
2024 | Lo (F) | Hi (F) | GDD 22 | GDD 32 | GDD 42 | GDD 50 | GDD 55 |
02-27 | 14° | 49° | 127 | 37 | 4 | 0 | 0 |
02-28 | 4° | 19° | 127 | 37 | 4 | 0 | 0 |
02-29 | 12° | 51° | 136 | 37 | 4 | 0 | 0 |
03-01 | 36° | 58° | 161 | 52 | 9 | 0 | 0 |
03-02 | 33° | 62° | 186 | 68 | 14 | 0 | 0 |
03-03 | 41° | 68° | 219 | 90 | 27 | 5 | 0 |
03-04 | 29° | 40° | 232 | 93 | 27 | 5 | 0 |
03-05 | 23° | 47° | 245 | 96 | 27 | 5 | 0 |
03-06 | 26° | 54° | 263 | 104 | 27 | 5 | 0 |
03-07 | 33° | 47° | 281 | 112 | 27 | 5 | 0 |
03-08 | 24° | 38° | 290 | 112 | 27 | 5 | 0 |
03-09 | 22° | 40° | 299 | 112 | 27 | 5 | 0 |
2024 | Lo (F) | Hi (F) | GDD 22 | GDD 32 | GDD 42 | GDD 50 | GDD 55 |
03-10 | 18° | 50° | 312 | 114 | 27 | 5 | 0 |
03-11 | 33° | 66° | 339 | 132 | 34 | 5 | 0 |
03-12 | 42° | 66° | 372 | 154 | 47 | 9 | 0 |
03-13 | 38° | 62° | 400 | 172 | 55 | 9 | 0 |
03-14 | 43° | 58° | 428 | 191 | 63 | 10 | 0 |
03-15 | 31° | 50° | 447 | 199 | 63 | 10 | 0 |
03-16 | 34° | 50° | 466 | 209 | 63 | 10 | 0 |
03-17 | 25° | 32° | 473 | 209 | 63 | 10 | 0 |
03-18 | 21° | 37° | 480 | 209 | 63 | 10 | 0 |
03-19 | 34° | 50° | 500 | 219 | 63 | 10 | 0 |
03-20 | 17° | 31° | 502 | 219 | 63 | 10 | 0 |
03-21 | 22° | 32° | 507 | 219 | 63 | 10 | 0 |
2024 | Lo (F) | Hi (F) | GDD 22 | GDD 32 | GDD 42 | GDD 50 | GDD 55 |
03-22 | 24° | 32° | 513 | 219 | 63 | 10 | 0 |
03-23 | 15° | 34° | 516 | 219 | 63 | 10 | 0 |
03-24 | 27° | 32° | 523 | 219 | 63 | 10 | 0 |
03-25 | 32° | 36° | 535 | 221 | 63 | 10 | 0 |
03-26 | 21° | 34° | 541 | 221 | 63 | 10 | 0 |
03-27 | 17° | 28° | 542 | 221 | 63 | 10 | 0 |
03-28 | 19° | 36° | 547 | 221 | 63 | 10 | 0 |
03-29 | 22° | 44° | 558 | 222 | 63 | 10 | 0 |
03-30 | 34° | 44° | 575 | 229 | 63 | 10 | 0 |
03-31 | 33° | 45° | 591 | 235 | 63 | 10 | 0 |
04-01 | 32° | 44° | 607 | 241 | 63 | 10 | 0 |
04-02 | 33° | 41° | 622 | 246 | 63 | 10 | 0 |
2024 | Lo (F) | Hi (F) | GDD 22 | GDD 32 | GDD 42 | GDD 50 | GDD 55 |
04-03 | 34° | 50° | 643 | 257 | 63 | 10 | 0 |
04-04 | 33° | 52° | 663 | 267 | 64 | 10 | 0 |
04-05 | 30° | 57° | 685 | 279 | 66 | 10 | 0 |
04-06 | 34° | 59° | 710 | 293 | 70 | 10 | 0 |
04-07 | 39° | 49° | 732 | 306 | 73 | 10 | 0 |
04-08 | 42° | 49° | 755 | 319 | 76 | 10 | 0 |
04-09 | 40° | 61° | 784 | 338 | 85 | 10 | 0 |
04-10 | 42° | 69° | 818 | 362 | 98 | 16 | 1 |
04-11 | 44° | 60° | 848 | 382 | 108 | 18 | 1 |
04-12 | 43° | 60° | 877 | 401 | 118 | 19 | 1 |
04-13 | 38° | 84° | 916 | 430 | 137 | 30 | 7 |
04-14 | 46° | 71° | 953 | 457 | 154 | 39 | 10 |
2024 | Lo (F) | Hi (F) | GDD 22 | GDD 32 | GDD 42 | GDD 50 | GDD 55 |
04-15 | 47° | 60° | 984 | 478 | 165 | 43 | 10 |
04-16 | 47° | 56° | 1014 | 498 | 175 | 44 | 10 |
04-17 | 44° | 53° | 1040 | 514 | 181 | 44 | 10 |
04-18 | 45° | 50° | 1066 | 530 | 187 | 44 | 10 |
04-19 | 33° | 39° | 1080 | 534 | 187 | 44 | 10 |
04-20 | 31° | 47° | 1097 | 541 | 187 | 44 | 10 |
04-21 | 32° | 53° | 1118 | 551 | 187 | 44 | 10 |
04-22 | 40° | 68° | 1150 | 574 | 199 | 48 | 10 |
04-23 | 44° | 60° | 1179 | 593 | 209 | 50 | 10 |
04-24 | 33° | 59° | 1203 | 607 | 213 | 50 | 10 |
04-25 | 44° | 68° | 1237 | 631 | 227 | 56 | 11 |
04-26 | 46° | 56° | 1266 | 650 | 236 | 57 | 11 |
2024 | Lo (F) | Hi (F) | GDD 22 | GDD 32 | GDD 42 | GDD 50 | GDD 55 |
04-27 | 49° | 57° | 1297 | 671 | 247 | 60 | 11 |
04-28 | 44° | 52° | 1323 | 687 | 252 | 60 | 11 |
04-29 | 43° | 49° | 1347 | 701 | 257 | 60 | 11 |
04-30 | 41° | 69° | 1380 | 724 | 270 | 65 | 11 |
05-01 | 49° | 64° | 1415 | 749 | 284 | 71 | 13 |
05-02 | 48° | 56° | 1445 | 769 | 295 | 74 | 13 |
05-03 | 45° | 69° | 1480 | 794 | 310 | 81 | 15 |
05-04 | 46° | 61° | 1512 | 816 | 321 | 84 | 15 |
05-05 | 43° | 70° | 1546 | 840 | 336 | 91 | 16 |
05-06 | 48° | 73° | 1585 | 869 | 354 | 101 | 22 |
05-07 | 58° | 71° | 1627 | 901 | 377 | 116 | 31 |
05-08 | 51° | 70° | 1666 | 930 | 395 | 127 | 37 |
2024 | Lo (F) | Hi (F) | GDD 22 | GDD 32 | GDD 42 | GDD 50 | GDD 55 |
05-09 | 48° | 60° | 1698 | 952 | 407 | 131 | 37 |
05-10 | 45° | 63° | 1730 | 974 | 420 | 135 | 37 |
05-11 | 47° | 68° | 1766 | 1000 | 435 | 142 | 40 |
2023 | Lo (F) | Hi (F) | GDD 22 | GDD 32 | GDD 42 | GDD 50 | GDD 55 |
---|---|---|---|---|---|---|---|
02-15 | 18° | 37° | 6 | 0 | 0 | 0 | 0 |
02-16 | 9° | 19° | 6 | 0 | 0 | 0 | 0 |
02-17 | 3° | 28° | 6 | 0 | 0 | 0 | 0 |
02-18 | 21° | 38° | 13 | 0 | 0 | 0 | 0 |
02-19 | 22° | 35° | 19 | 0 | 0 | 0 | 0 |
02-20 | 13° | 34° | 21 | 0 | 0 | 0 | 0 |
02-21 | 4° | 15° | 21 | 0 | 0 | 0 | 0 |
02-22 | 13° | 22° | 21 | 0 | 0 | 0 | 0 |
02-23 | 3° | 18° | 21 | 0 | 0 | 0 | 0 |
02-24 | -10° | 12° | 21 | 0 | 0 | 0 | 0 |
02-25 | 1° | 26° | 21 | 0 | 0 | 0 | 0 |
02-26 | 1° | 33° | 21 | 0 | 0 | 0 | 0 |
2023 | Lo (F) | Hi (F) | GDD 22 | GDD 32 | GDD 42 | GDD 50 | GDD 55 |
02-27 | 28° | 34° | 30 | 0 | 0 | 0 | 0 |
02-28 | 17° | 38° | 36 | 0 | 0 | 0 | 0 |
02-29 | n/a | n/a | n/a | n/a | n/a | n/a | n/a |
03-01 | 24° | 37° | 44 | 0 | 0 | 0 | 0 |
03-02 | 14° | 28° | 44 | 0 | 0 | 0 | 0 |
03-03 | 24° | 39° | 54 | 0 | 0 | 0 | 0 |
03-04 | 22° | 37° | 62 | 0 | 0 | 0 | 0 |
03-05 | 15° | 39° | 67 | 0 | 0 | 0 | 0 |
03-06 | 29° | 36° | 77 | 1 | 0 | 0 | 0 |
03-07 | 27° | 39° | 88 | 2 | 0 | 0 | 0 |
03-08 | 31° | 35° | 99 | 3 | 0 | 0 | 0 |
03-09 | 30° | 34° | 109 | 3 | 0 | 0 | 0 |
2023 | Lo (F) | Hi (F) | GDD 22 | GDD 32 | GDD 42 | GDD 50 | GDD 55 |
03-10 | 27° | 33° | 117 | 3 | 0 | 0 | 0 |
03-11 | 28° | 31° | 125 | 3 | 0 | 0 | 0 |
03-12 | 26° | 32° | 132 | 3 | 0 | 0 | 0 |
03-13 | 17° | 29° | 133 | 3 | 0 | 0 | 0 |
03-14 | 6° | 32° | 133 | 3 | 0 | 0 | 0 |
03-15 | 29° | 44° | 147 | 7 | 0 | 0 | 0 |
03-16 | 23° | 45° | 159 | 9 | 0 | 0 | 0 |
03-17 | 7° | 21° | 159 | 9 | 0 | 0 | 0 |
03-18 | 7° | 27° | 159 | 9 | 0 | 0 | 0 |
03-19 | 9° | 39° | 161 | 9 | 0 | 0 | 0 |
03-20 | 26° | 38° | 171 | 9 | 0 | 0 | 0 |
03-21 | 26° | 40° | 182 | 10 | 0 | 0 | 0 |
2023 | Lo (F) | Hi (F) | GDD 22 | GDD 32 | GDD 42 | GDD 50 | GDD 55 |
03-22 | 29° | 40° | 194 | 12 | 0 | 0 | 0 |
03-23 | 23° | 36° | 201 | 12 | 0 | 0 | 0 |
03-24 | 12° | 42° | 206 | 12 | 0 | 0 | 0 |
03-25 | 29° | 43° | 221 | 16 | 0 | 0 | 0 |
03-26 | 26° | 41° | 232 | 18 | 0 | 0 | 0 |
03-27 | 23° | 38° | 241 | 18 | 0 | 0 | 0 |
03-28 | 18° | 34° | 245 | 18 | 0 | 0 | 0 |
03-29 | 11° | 27° | 245 | 18 | 0 | 0 | 0 |
03-30 | 20° | 36° | 251 | 18 | 0 | 0 | 0 |
03-31 | 32° | 37° | 264 | 20 | 0 | 0 | 0 |
04-01 | 26° | 38° | 274 | 20 | 0 | 0 | 0 |
04-02 | 30° | 51° | 292 | 29 | 0 | 0 | 0 |
2023 | Lo (F) | Hi (F) | GDD 22 | GDD 32 | GDD 42 | GDD 50 | GDD 55 |
04-03 | 36° | 43° | 310 | 37 | 0 | 0 | 0 |
04-04 | 33° | 37° | 323 | 40 | 0 | 0 | 0 |
04-05 | 25° | 36° | 332 | 40 | 0 | 0 | 0 |
04-06 | 23° | 35° | 339 | 40 | 0 | 0 | 0 |
04-07 | 30° | 49° | 356 | 47 | 0 | 0 | 0 |
04-08 | 37° | 66° | 386 | 67 | 10 | 2 | 0 |
04-09 | 54° | 66° | 424 | 95 | 28 | 12 | 5 |
04-10 | 41° | 72° | 459 | 120 | 43 | 19 | 7 |
04-11 | 52° | 82° | 504 | 155 | 67 | 35 | 19 |
04-12 | 64° | 88° | 558 | 199 | 102 | 62 | 40 |
04-13 | 63° | 89° | 611 | 242 | 135 | 87 | 60 |
04-14 | 58° | 84° | 660 | 281 | 164 | 108 | 76 |
2023 | Lo (F) | Hi (F) | GDD 22 | GDD 32 | GDD 42 | GDD 50 | GDD 55 |
04-15 | 39° | 57° | 687 | 298 | 171 | 108 | 76 |
04-16 | 31° | 39° | 700 | 300 | 171 | 108 | 76 |
04-17 | 30° | 48° | 717 | 308 | 171 | 108 | 76 |
04-18 | 30° | 56° | 738 | 318 | 171 | 108 | 76 |
04-19 | 36° | 48° | 758 | 329 | 172 | 108 | 76 |
04-20 | 37° | 41° | 775 | 336 | 172 | 108 | 76 |
04-21 | 32° | 39° | 789 | 340 | 172 | 108 | 76 |
04-22 | 32° | 35° | 801 | 341 | 172 | 108 | 76 |
04-23 | 29° | 44° | 815 | 346 | 172 | 108 | 76 |
04-24 | 32° | 47° | 833 | 353 | 172 | 108 | 76 |
04-25 | 30° | 49° | 850 | 361 | 172 | 108 | 76 |
04-26 | 31° | 57° | 872 | 373 | 173 | 108 | 76 |
2023 | Lo (F) | Hi (F) | GDD 22 | GDD 32 | GDD 42 | GDD 50 | GDD 55 |
04-27 | 50° | 61° | 905 | 396 | 187 | 113 | 76 |
04-28 | 42° | 52° | 930 | 411 | 191 | 113 | 76 |
04-29 | 38° | 52° | 953 | 424 | 195 | 113 | 76 |
04-30 | 38° | 49° | 975 | 435 | 196 | 113 | 76 |
05-01 | 41° | 55° | 1001 | 452 | 202 | 113 | 76 |
05-02 | 40° | 61° | 1029 | 470 | 211 | 114 | 76 |
05-03 | 35° | 69° | 1059 | 490 | 221 | 116 | 76 |
05-04 | 50° | 75° | 1100 | 521 | 242 | 129 | 84 |
05-05 | 48° | 66° | 1135 | 546 | 257 | 136 | 86 |
05-06 | 55° | 62° | 1172 | 573 | 273 | 144 | 90 |
05-07 | 55° | 75° | 1215 | 605 | 296 | 159 | 100 |
05-08 | 51° | 76° | 1256 | 637 | 317 | 172 | 108 |
2023 | Lo (F) | Hi (F) | GDD 22 | GDD 32 | GDD 42 | GDD 50 | GDD 55 |
05-09 | 54° | 68° | 1295 | 666 | 336 | 184 | 114 |
05-10 | 57° | 79° | 1341 | 702 | 362 | 201 | 127 |
05-11 | 62° | 78° | 1388 | 739 | 390 | 221 | 141 |
05-12 | 64° | 75° | 1436 | 776 | 417 | 240 | 156 |
05-13 | 59° | 67° | 1477 | 808 | 438 | 253 | 164 |
05-14 | 51° | 67° | 1514 | 835 | 455 | 263 | 168 |
05-15 | 43° | 76° | 1551 | 862 | 473 | 272 | 172 |
05-16 | 53° | 81° | 1596 | 897 | 497 | 289 | 184 |
05-17 | 49° | 67° | 1632 | 923 | 513 | 297 | 187 |
05-18 | 57° | 66° | 1671 | 952 | 533 | 308 | 193 |
05-19 | 44° | 60° | 1702 | 973 | 543 | 310 | 193 |
05-20 | 42° | 73° | 1737 | 998 | 559 | 318 | 196 |
2023 | Lo (F) | Hi (F) | GDD 22 | GDD 32 | GDD 42 | GDD 50 | GDD 55 |
05-21 | 48° | 78° | 1779 | 1029 | 580 | 331 | 204 |
05-22 | 56° | 78° | 1823 | 1064 | 605 | 348 | 216 |
05-23 | 58° | 83° | 1872 | 1103 | 633 | 368 | 231 |
05-24 | 54° | 75° | 1915 | 1135 | 656 | 383 | 241 |
05-25 | 58° | 76° | 1960 | 1170 | 681 | 400 | 253 |
05-26 | 53° | 79° | 2004 | 1205 | 705 | 416 | 264 |
05-27 | 52° | 82° | 2049 | 1240 | 730 | 433 | 276 |
05-28 | 55° | 81° | 2095 | 1276 | 756 | 451 | 289 |
05-29 | 65° | 86° | 2148 | 1319 | 789 | 477 | 310 |
05-30 | 64° | 87° | 2201 | 1362 | 823 | 502 | 330 |
05-31 | 66° | 88° | 2256 | 1407 | 857 | 529 | 352 |
06-01 | 71° | 87° | 2313 | 1454 | 895 | 558 | 376 |
2023 | Lo (F) | Hi (F) | GDD 22 | GDD 32 | GDD 42 | GDD 50 | GDD 55 |
06-02 | 71° | 85° | 2369 | 1500 | 930 | 585 | 398 |
06-03 | 67° | 89° | 2425 | 1545 | 966 | 613 | 421 |
06-04 | 66° | 89° | 2480 | 1591 | 1002 | 641 | 444 |
06-05 | 66° | 84° | 2533 | 1634 | 1035 | 666 | 464 |
06-06 | 66° | 85° | 2587 | 1678 | 1068 | 692 | 485 |
06-07 | 64° | 80° | 2637 | 1718 | 1098 | 713 | 502 |
06-08 | 61° | 81° | 2686 | 1757 | 1128 | 735 | 518 |
06-09 | 57° | 84° | 2735 | 1796 | 1156 | 756 | 534 |
06-10 | 59° | 82° | 2784 | 1835 | 1185 | 776 | 549 |
06-11 | 48° | 70° | 2821 | 1862 | 1202 | 785 | 554 |
06-12 | 52° | 80° | 2865 | 1896 | 1227 | 802 | 565 |
06-13 | 58° | 86° | 2915 | 1936 | 1257 | 824 | 582 |
2023 | Lo (F) | Hi (F) | GDD 22 | GDD 32 | GDD 42 | GDD 50 | GDD 55 |
06-14 | 59° | 82° | 2964 | 1975 | 1285 | 844 | 597 |
06-15 | 58° | 72° | 3007 | 2008 | 1308 | 859 | 608 |
06-16 | 48° | 78° | 3048 | 2039 | 1330 | 873 | 616 |
06-17 | 58° | 84° | 3097 | 2078 | 1359 | 894 | 632 |
06-18 | 69° | 78° | 3149 | 2120 | 1390 | 918 | 651 |
06-19 | 64° | 89° | 3204 | 2164 | 1425 | 944 | 672 |
06-20 | 71° | 91° | 3262 | 2213 | 1464 | 975 | 698 |
06-21 | 68° | 91° | 3320 | 2261 | 1501 | 1004 | 722 |
06-22 | 69° | 91° | 3377 | 2308 | 1539 | 1034 | 747 |
06-23 | 70° | 90° | 3436 | 2356 | 1577 | 1064 | 772 |
06-24 | 69° | 84° | 3490 | 2401 | 1611 | 1091 | 794 |
06-25 | 63° | 74° | 3536 | 2437 | 1638 | 1109 | 807 |
2023 | Lo (F) | Hi (F) | GDD 22 | GDD 32 | GDD 42 | GDD 50 | GDD 55 |
06-26 | 63° | 82° | 3587 | 2478 | 1669 | 1132 | 825 |
06-27 | 62° | 85° | 3639 | 2519 | 1700 | 1155 | 843 |
06-28 | 69° | 84° | 3693 | 2564 | 1734 | 1182 | 865 |
06-29 | 63° | 89° | 3747 | 2608 | 1768 | 1207 | 885 |
06-30 | 64° | 85° | 3799 | 2650 | 1801 | 1232 | 905 |
07-01 | 65° | 86° | 3853 | 2694 | 1835 | 1258 | 926 |
07-02 | 66° | 89° | 3909 | 2740 | 1870 | 1285 | 948 |
07-03 | 71° | 93° | 3969 | 2790 | 1910 | 1318 | 976 |
07-04 | 67° | 79° | 4020 | 2831 | 1942 | 1341 | 994 |
07-05 | 63° | 75° | 4068 | 2869 | 1969 | 1360 | 1009 |
07-06 | 53° | 76° | 4110 | 2901 | 1992 | 1375 | 1018 |
07-07 | 55° | 74° | 4153 | 2934 | 2014 | 1390 | 1028 |
2023 | Lo (F) | Hi (F) | GDD 22 | GDD 32 | GDD 42 | GDD 50 | GDD 55 |
07-08 | 57° | 79° | 4199 | 2970 | 2041 | 1408 | 1041 |
07-09 | 56° | 85° | 4248 | 3008 | 2069 | 1428 | 1056 |
07-10 | 70° | 92° | 4307 | 3058 | 2108 | 1459 | 1082 |
07-11 | 54° | 75° | 4349 | 3090 | 2131 | 1474 | 1092 |
07-12 | 61° | 79° | 4397 | 3128 | 2159 | 1494 | 1107 |
07-13 | 62° | 86° | 4449 | 3170 | 2191 | 1518 | 1126 |
07-14 | 64° | 88° | 4503 | 3214 | 2225 | 1544 | 1147 |
07-15 | 62° | 80° | 4552 | 3253 | 2253 | 1564 | 1163 |
07-16 | 58° | 78° | 4598 | 3289 | 2279 | 1582 | 1175 |
07-17 | 56° | 73° | 4640 | 3321 | 2302 | 1597 | 1185 |
07-18 | 57° | 82° | 4688 | 3359 | 2329 | 1616 | 1199 |
07-19 | 65° | 88° | 4742 | 3403 | 2364 | 1643 | 1221 |
2023 | Lo (F) | Hi (F) | GDD 22 | GDD 32 | GDD 42 | GDD 50 | GDD 55 |
07-20 | 63° | 77° | 4791 | 3442 | 2392 | 1663 | 1236 |
07-21 | 60° | 81° | 4839 | 3480 | 2421 | 1684 | 1252 |
07-22 | 60° | 84° | 4889 | 3520 | 2451 | 1706 | 1269 |
07-23 | 61° | 85° | 4940 | 3561 | 2482 | 1729 | 1287 |
07-24 | 64° | 87° | 4993 | 3604 | 2515 | 1754 | 1307 |
07-25 | 68° | 93° | 5051 | 3652 | 2553 | 1784 | 1332 |
07-26 | 69° | 91° | 5109 | 3700 | 2591 | 1814 | 1357 |
07-27 | 73° | 94° | 5171 | 3752 | 2632 | 1847 | 1385 |
07-28 | 70° | 89° | 5228 | 3799 | 2670 | 1877 | 1410 |
07-29 | 62° | 80° | 5277 | 3838 | 2698 | 1897 | 1426 |
07-30 | 60° | 80° | 5324 | 3875 | 2726 | 1917 | 1440 |
07-31 | 58° | 83° | 5373 | 3914 | 2754 | 1938 | 1456 |
2023 | Lo (F) | Hi (F) | GDD 22 | GDD 32 | GDD 42 | GDD 50 | GDD 55 |
08-01 | 63° | 86° | 5425 | 3956 | 2787 | 1962 | 1475 |
08-02 | 70° | 90° | 5484 | 4004 | 2825 | 1992 | 1500 |
08-03 | 72° | 93° | 5544 | 4055 | 2866 | 2025 | 1528 |
08-04 | 66° | 87° | 5599 | 4099 | 2900 | 2051 | 1549 |
08-05 | 71° | 83° | 5653 | 4144 | 2935 | 2078 | 1571 |
08-06 | 68° | 74° | 5702 | 4183 | 2964 | 2099 | 1587 |
08-07 | 63° | 82° | 5753 | 4224 | 2995 | 2122 | 1605 |
08-08 | 60° | 83° | 5803 | 4264 | 3024 | 2143 | 1621 |
08-09 | 63° | 79° | 5851 | 4302 | 3053 | 2164 | 1637 |
08-10 | 64° | 77° | 5900 | 4340 | 3081 | 2184 | 1652 |
08-11 | 64° | 85° | 5952 | 4383 | 3114 | 2209 | 1672 |
08-12 | 61° | 80° | 6001 | 4422 | 3143 | 2230 | 1688 |
2023 | Lo (F) | Hi (F) | GDD 22 | GDD 32 | GDD 42 | GDD 50 | GDD 55 |
08-13 | 63° | 71° | 6047 | 4457 | 3168 | 2247 | 1700 |
08-14 | 61° | 70° | 6090 | 4491 | 3192 | 2263 | 1711 |
08-15 | 53° | 81° | 6135 | 4526 | 3217 | 2280 | 1723 |
08-16 | 63° | 86° | 6188 | 4569 | 3250 | 2305 | 1743 |
08-17 | 62° | 74° | 6235 | 4605 | 3276 | 2323 | 1756 |
08-18 | 54° | 79° | 6279 | 4640 | 3301 | 2340 | 1768 |
08-19 | 68° | 91° | 6337 | 4688 | 3338 | 2369 | 1792 |
08-20 | 65° | 80° | 6387 | 4728 | 3369 | 2392 | 1810 |
08-21 | 62° | 75° | 6434 | 4765 | 3395 | 2410 | 1824 |
08-22 | 70° | 99° | 6496 | 4817 | 3438 | 2445 | 1853 |
08-23 | 79° | 95° | 6561 | 4872 | 3483 | 2482 | 1885 |
08-24 | 68° | 86° | 6617 | 4918 | 3518 | 2510 | 1908 |
2023 | Lo (F) | Hi (F) | GDD 22 | GDD 32 | GDD 42 | GDD 50 | GDD 55 |
08-25 | 69° | 88° | 6674 | 4965 | 3555 | 2538 | 1931 |
08-26 | 61° | 72° | 6718 | 4999 | 3580 | 2555 | 1943 |
08-27 | 53° | 78° | 6761 | 5032 | 3603 | 2570 | 1953 |
08-28 | 62° | 85° | 6813 | 5074 | 3635 | 2594 | 1972 |
08-29 | 62° | 82° | 6863 | 5114 | 3665 | 2616 | 1989 |
08-30 | 59° | 79° | 6910 | 5151 | 3692 | 2635 | 2003 |
08-31 | 59° | 81° | 6958 | 5189 | 3720 | 2655 | 2018 |
09-01 | 63° | 89° | 7013 | 5234 | 3754 | 2681 | 2040 |
09-02 | 71° | 89° | 7071 | 5282 | 3792 | 2711 | 2064 |
09-03 | 75° | 98° | 7135 | 5336 | 3837 | 2748 | 2096 |
09-04 | 74° | 98° | 7199 | 5390 | 3881 | 2784 | 2127 |
09-05 | 76° | 90° | 7260 | 5441 | 3922 | 2817 | 2155 |
2023 | Lo (F) | Hi (F) | GDD 22 | GDD 32 | GDD 42 | GDD 50 | GDD 55 |
09-06 | 61° | 75° | 7306 | 5477 | 3948 | 2835 | 2168 |
09-07 | 57° | 64° | 7344 | 5505 | 3966 | 2845 | 2173 |
09-08 | 47° | 78° | 7385 | 5536 | 3986 | 2858 | 2181 |
09-09 | 59° | 75° | 7430 | 5571 | 4012 | 2875 | 2193 |
09-10 | 60° | 72° | 7474 | 5605 | 4036 | 2891 | 2204 |
09-11 | 51° | 72° | 7514 | 5635 | 4055 | 2903 | 2211 |
09-12 | 52° | 64° | 7550 | 5661 | 4072 | 2911 | 2214 |
09-13 | 43° | 66° | 7582 | 5683 | 4084 | 2915 | 2214 |
09-14 | 50° | 82° | 7627 | 5717 | 4108 | 2931 | 2225 |
09-15 | 58° | 73° | 7670 | 5751 | 4132 | 2947 | 2236 |
09-16 | 51° | 71° | 7709 | 5780 | 4151 | 2958 | 2241 |
09-17 | 49° | 71° | 7747 | 5808 | 4169 | 2968 | 2247 |
2023 | Lo (F) | Hi (F) | GDD 22 | GDD 32 | GDD 42 | GDD 50 | GDD 55 |
09-18 | 51° | 76° | 7789 | 5840 | 4190 | 2981 | 2255 |
09-19 | 59° | 81° | 7837 | 5878 | 4218 | 3001 | 2270 |
09-20 | 58° | 86° | 7887 | 5918 | 4248 | 3023 | 2287 |
09-21 | 61° | 83° | 7937 | 5958 | 4278 | 3045 | 2304 |
09-22 | 63° | 74° | 7983 | 5994 | 4305 | 3064 | 2318 |
09-23 | 64° | 74° | 8030 | 6031 | 4332 | 3083 | 2331 |
09-24 | 61° | 70° | 8074 | 6065 | 4355 | 3098 | 2342 |
09-25 | 61° | 63° | 8114 | 6095 | 4375 | 3110 | 2349 |
09-26 | 61° | 65° | 8155 | 6126 | 4396 | 3123 | 2357 |
09-27 | 60° | 71° | 8199 | 6159 | 4420 | 3139 | 2368 |
09-28 | 61° | 71° | 8242 | 6193 | 4444 | 3155 | 2379 |
09-29 | 61° | 73° | 8287 | 6228 | 4468 | 3172 | 2390 |
2023 | Lo (F) | Hi (F) | GDD 22 | GDD 32 | GDD 42 | GDD 50 | GDD 55 |
09-30 | 66° | 85° | 8340 | 6271 | 4502 | 3197 | 2411 |
Don't miss this update from from Kevin Frank regarding timing of crabgrass preemergence herbicides.