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Early Season Fungicide App for Dollar Spot Suppression (GDD 50)
through Sun, Oct. 27. 2024

 
  

Bellbrook, OH

       

Generously Supported By:



Tabular Data

Daily GDD accumulation for various base temperature models in 2024 & 2023

2024Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
02-15 30° 53° 20 10 0 0 0
02-16 26° 38° 30 10 0 0 0
02-17 15° 26° 30 10 0 0 0
02-18 14° 39° 34 10 0 0 0
02-19 19° 46° 44 10 0 0 0
02-20 26° 55° 63 18 0 0 0
02-21 32° 62° 88 33 5 0 0
02-22 47° 58° 118 53 15 2 0
02-23 41° 54° 144 69 21 2 0
02-24 24° 40° 154 69 21 2 0
02-25 25° 53° 171 76 21 2 0
02-26 36° 68° 200 96 31 4 0
2024Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
02-27 58° 65° 240 125 50 15 6
02-28 28° 67° 265 141 55 15 6
02-29 25° 42° 277 142 55 15 6
03-01 29° 43° 291 146 55 15 6
03-02 41° 51° 314 160 59 15 6
03-03 41° 66° 346 181 71 19 6
03-04 49° 73° 385 211 90 30 13
03-05 55° 67° 424 240 109 41 19
03-06 44° 57° 453 258 118 42 19
03-07 41° 51° 477 273 122 42 19
03-08 43° 57° 505 291 130 42 19
03-09 40° 56° 532 307 136 42 19
2024Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
03-10 32° 40° 545 311 136 42 19
03-11 27° 55° 564 320 136 42 19
03-12 39° 67° 595 340 147 44 19
03-13 45° 71° 631 366 163 52 22
03-14 52° 71° 670 396 183 64 28
03-15 42° 61° 700 415 192 66 28
03-16 32° 61° 724 430 197 66 28
03-17 37° 55° 748 444 201 66 28
03-18 31° 34° 759 444 201 66 28
03-19 29° 51° 777 452 201 66 28
03-20 31° 51° 796 461 201 66 28
03-21 23° 42° 806 462 201 66 28
2024Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
03-22 30° 49° 824 469 201 66 28
03-23 30° 40° 837 472 201 66 28
03-24 23° 51° 852 477 201 66 28
03-25 43° 70° 886 502 215 72 30
03-26 47° 61° 919 524 227 76 30
03-27 35° 49° 938 534 227 76 30
03-28 28° 53° 956 542 227 76 30
03-29 39° 65° 986 562 237 78 30
03-30 47° 74° 1025 591 256 89 36
03-31 47° 67° 1060 616 271 96 38
04-01 51° 65° 1097 642 288 105 41
04-02 56° 70° 1138 673 309 118 49
2024Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
04-03 39° 52° 1162 687 313 118 49
04-04 35° 45° 1180 695 313 118 49
04-05 36° 46° 1199 704 313 118 49
04-06 32° 53° 1219 715 313 118 49
04-07 33° 62° 1245 730 319 118 49
04-08 49° 75° 1284 760 338 129 56
04-09 56° 65° 1323 788 357 140 61
04-10 56° 62° 1360 815 374 149 65
04-11 51° 65° 1396 842 390 157 69
04-12 48° 55° 1426 861 400 159 69
04-13 44° 64° 1458 883 411 163 69
04-14 50° 80° 1501 916 434 178 79
2024Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
04-15 58° 75° 1545 951 459 194 90
04-16 53° 80° 1589 985 483 210 101
04-17 63° 75° 1636 1022 510 229 115
04-18 51° 75° 1678 1053 531 242 123
04-19 51° 67° 1715 1080 548 251 127
04-20 44° 53° 1741 1097 555 251 127
04-21 38° 45° 1761 1106 555 251 127
04-22 32° 61° 1785 1120 559 251 127
04-23 47° 65° 1819 1145 574 258 129
04-24 45° 54° 1846 1162 581 258 129
04-25 38° 59° 1873 1178 587 258 129
04-26 40° 75° 1909 1204 603 265 131
2024Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
04-27 63° 78° 1957 1242 631 286 147
04-28 63° 81° 2007 1283 662 308 164
04-29 62° 79° 2056 1321 690 328 179
04-30 57° 72° 2099 1354 713 343 189
05-01 51° 80° 2142 1387 736 358 199
05-02 59° 85° 2192 1427 766 380 216
05-03 66° 71° 2238 1463 792 399 230
05-04 64° 74° 2285 1501 820 418 244
05-05 64° 77° 2334 1539 848 438 259
05-06 61° 71° 2378 1573 872 455 271
05-07 63° 76° 2425 1611 900 474 285
05-08 61° 80° 2474 1649 928 494 300
2024Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
05-09 55° 71° 2515 1680 949 507 308
05-10 51° 64° 2550 1706 965 515 311
05-11 51° 66° 2587 1732 981 524 315
05-12 47° 73° 2625 1760 999 534 320
05-13 55° 78° 2670 1795 1024 550 331
05-14 60° 66° 2711 1826 1045 563 339
05-15 62° 69° 2754 1859 1068 578 349
05-16 55° 77° 2798 1893 1092 594 360
05-17 64° 72° 2844 1929 1118 612 373
05-18 59° 80° 2891 1967 1146 632 388
05-19 60° 85° 2942 2007 1176 655 406
05-20 62° 86° 2994 2050 1209 679 425
2024Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
05-21 64° 86° 3047 2093 1242 704 445
05-22 69° 83° 3102 2137 1276 730 466
05-23 61° 78° 3149 2175 1304 750 481
05-24 64° 81° 3200 2215 1334 772 498
05-25 67° 82° 3252 2257 1366 796 517
05-26 61° 80° 3300 2296 1395 817 533
05-27 64° 75° 3348 2333 1422 836 547
05-28 60° 74° 3393 2368 1447 853 559
05-29 53° 68° 3431 2397 1466 864 565
05-30 52° 71° 3471 2426 1485 876 572
05-31 46° 75° 3510 2455 1504 886 577
06-01 52° 81° 3554 2490 1529 903 589
2024Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
06-02 62° 73° 3600 2525 1554 921 602
06-03 62° 83° 3651 2566 1585 943 619
06-04 63° 86° 3703 2609 1618 968 639
06-05 68° 82° 3756 2652 1651 993 659
06-06 65° 80° 3807 2692 1681 1016 677
06-07 59° 77° 3853 2728 1707 1033 689
06-08 53° 77° 3896 2761 1730 1049 700
06-09 61° 77° 3943 2799 1758 1068 714
06-10 53° 64° 3980 2825 1774 1076 717
06-11 48° 75° 4019 2855 1794 1088 724
06-12 54° 82° 4065 2891 1820 1106 737
06-13 59° 88° 4117 2932 1851 1129 755
2024Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
06-14 68° 86° 4172 2977 1886 1156 777
06-15 60° 82° 4221 3016 1915 1177 793
06-16 57° 90° 4272 3058 1947 1201 812
06-17 73° 91° 4332 3107 1986 1232 838
06-18 74° 92° 4393 3158 2027 1265 866
06-19 73° 90° 4452 3208 2067 1297 893
06-20 73° 93° 4513 3259 2108 1330 921
06-21 71° 94° 4574 3309 2148 1362 948
06-22 70° 93° 4633 3359 2188 1394 975
06-23 75° 86° 4692 3407 2226 1424 1000
06-24 64° 84° 4744 3449 2258 1448 1019
06-25 65° 83° 4796 3491 2290 1472 1038
2024Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
06-26 66° 76° 4845 3530 2319 1493 1054
06-27 61° 82° 4894 3569 2348 1515 1071
06-28 61° 89° 4947 3612 2381 1540 1091
06-29 73° 85° 5004 3659 2418 1569 1115
06-30 67° 81° 5056 3702 2451 1593 1134
07-01 54° 76° 5099 3735 2474 1608 1144
07-02 53° 85° 5146 3772 2501 1627 1158
07-03 75° 89° 5206 3821 2540 1659 1185
07-04 74° 82° 5262 3867 2576 1687 1208
07-05 67° 81° 5314 3910 2609 1711 1227
07-06 65° 82° 5366 3951 2640 1734 1245
07-07 63° 85° 5418 3993 2672 1758 1264
2024Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
07-08 65° 88° 5472 4037 2706 1785 1286
07-09 71° 85° 5528 4083 2742 1812 1308
07-10 67° 79° 5579 4124 2773 1836 1327
07-11 61° 85° 5630 4166 2805 1859 1345
07-12 67° 85° 5684 4209 2838 1884 1365
07-13 67° 88° 5740 4255 2874 1912 1388
07-14 66° 87° 5794 4300 2909 1939 1410
07-15 71° 90° 5853 4348 2947 1970 1436
07-16 72° 87° 5911 4396 2985 1999 1460
07-17 71° 84° 5966 4442 3021 2027 1483
07-18 60° 77° 6013 4478 3047 2046 1497
07-19 57° 79° 6059 4515 3074 2064 1510
2024Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
07-20 58° 83° 6108 4553 3102 2084 1525
07-21 62° 80° 6156 4592 3131 2105 1541
07-22 65° 80° 6207 4632 3161 2127 1558
07-23 66° 84° 6259 4675 3194 2152 1578
07-24 66° 84° 6312 4718 3227 2177 1598
07-25 66° 82° 6364 4760 3259 2201 1617
07-26 60° 80° 6413 4798 3287 2221 1632
07-27 57° 84° 6461 4836 3315 2242 1648
07-28 61° 88° 6513 4879 3348 2266 1667
07-29 72° 83° 6569 4924 3383 2294 1690
07-30 68° 85° 6624 4969 3418 2320 1711
07-31 71° 87° 6681 5016 3455 2349 1735
2024Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
08-01 71° 88° 6738 5063 3492 2379 1760
08-02 68° 82° 6791 5107 3526 2404 1780
08-03 68° 84° 6846 5151 3560 2430 1801
08-04 68° 87° 6901 5197 3596 2458 1824
08-05 69° 88° 6958 5243 3632 2486 1847
08-06 72° 90° 7017 5292 3671 2517 1873
08-07 69° 81° 7070 5335 3704 2542 1893
08-08 65° 84° 7122 5377 3736 2567 1913
08-09 67° 81° 7174 5419 3768 2591 1932
08-10 57° 75° 7218 5453 3792 2607 1943
08-11 54° 75° 7261 5486 3815 2621 1952
08-12 53° 79° 7305 5521 3840 2638 1964
2024Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
08-13 63° 82° 7355 5561 3870 2660 1981
08-14 59° 84° 7405 5600 3899 2682 1998
08-15 60° 80° 7453 5639 3928 2702 2013
08-16 68° 85° 7508 5683 3962 2728 2034
08-17 69° 86° 7563 5728 3997 2756 2057
08-18 66° 76° 7612 5768 4027 2777 2073
08-19 62° 75° 7659 5804 4053 2795 2086
08-20 53° 70° 7698 5834 4073 2807 2093
08-21 48° 73° 7737 5862 4091 2817 2098
08-22 48° 77° 7777 5893 4112 2830 2106
08-23 51° 83° 7822 5928 4137 2847 2118
08-24 57° 88° 7873 5968 4167 2869 2135
2024Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
08-25 63° 91° 7928 6013 4202 2896 2157
08-26 66° 91° 7984 6060 4239 2925 2181
08-27 67° 94° 8042 6108 4277 2955 2206
08-28 72° 93° 8103 6158 4317 2987 2233
08-29 71° 93° 8163 6208 4357 3019 2260
08-30 70° 96° 8224 6259 4398 3053 2289
08-31 73° 82° 8279 6305 4434 3080 2311
09-01 68° 86° 8335 6350 4469 3107 2333
09-02 59° 76° 8380 6386 4495 3125 2346
09-03 51° 77° 8422 6418 4517 3139 2355
09-04 52° 85° 8469 6455 4544 3158 2369
09-05 54° 88° 8518 6494 4573 3179 2385
2024Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
09-06 64° 85° 8571 6536 4605 3203 2404
09-07 51° 67° 8608 6563 4622 3212 2408
09-08 42° 70° 8642 6587 4636 3219 2410
09-09 43° 78° 8680 6616 4655 3229 2415
09-10 49° 84° 8725 6650 4679 3246 2427
09-11 52° 86° 8772 6687 4706 3265 2441
09-12 54° 87° 8821 6726 4735 3285 2456
09-13 58° 86° 8871 6766 4765 3307 2473
09-14 63° 87° 8924 6809 4798 3333 2494
09-15 60° 87° 8976 6851 4830 3356 2512
09-16 56° 85° 9024 6889 4858 3376 2527
09-17 57° 83° 9072 6927 4886 3397 2543
2024Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
09-18 66° 87° 9126 6972 4921 3423 2564
09-19 61° 89° 9179 7015 4954 3448 2584
09-20 60° 91° 9233 7058 4987 3474 2605
09-21 68° 92° 9291 7106 5025 3504 2630
09-22 58° 91° 9343 7149 5058 3528 2649
09-23 67° 76° 9393 7188 5087 3550 2666
09-24 65° 76° 9441 7227 5116 3570 2681
09-25 65° 77° 9490 7266 5145 3591 2697
09-26 64° 73° 9537 7302 5171 3609 2710
09-27 65° 71° 9583 7338 5197 3628 2724
09-28 65° 66° 9627 7372 5221 3643 2734
09-29 64° 70° 9672 7407 5246 3661 2747
2024Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
09-30 66° 72° 9719 7444 5273 3679 2760
2023Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
02-15 51° 71° 39 29 19 11 6
02-16 45° 59° 69 49 29 13 6
02-17 26° 44° 82 52 29 13 6
02-18 19° 44° 92 52 29 13 6
02-19 36° 57° 116 67 34 13 6
02-20 37° 58° 141 82 39 13 6
02-21 37° 50° 163 93 41 13 6
02-22 38° 72° 196 116 53 18 6
02-23 38° 71° 228 139 66 23 6
02-24 25° 42° 240 141 66 23 6
02-25 31° 50° 258 149 66 23 6
02-26 28° 56° 279 159 66 23 6
2023Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
02-27 38° 64° 307 178 75 24 6
02-28 38° 51° 330 190 78 24 6
02-29 n/a n/a n/a n/a n/a n/a n/a
03-01 38° 76° 365 215 93 30 8
03-02 41° 55° 391 231 99 30 8
03-03 37° 55° 415 245 103 30 8
03-04 36° 52° 437 257 105 30 8
03-05 35° 54° 460 270 108 30 8
03-06 39° 73° 494 294 122 36 9
03-07 32° 48° 512 302 122 36 9
03-08 28° 48° 528 308 122 36 9
03-09 28° 50° 545 315 122 36 9
2023Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
03-10 35° 43° 562 322 122 36 9
03-11 32° 41° 576 327 122 36 9
03-12 30° 36° 587 328 122 36 9
03-13 30° 35° 598 329 122 36 9
03-14 28° 33° 607 329 122 36 9
03-15 20° 47° 618 330 122 36 9
03-16 33° 61° 643 345 127 36 9
03-17 31° 57° 665 357 129 36 9
03-18 20° 31° 669 357 129 36 9
03-19 16° 35° 672 357 129 36 9
03-20 21° 49° 685 360 129 36 9
03-21 29° 58° 707 371 130 36 9
2023Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
03-22 43° 52° 732 387 136 36 9
03-23 49° 70° 769 414 153 46 13
03-24 39° 49° 791 426 155 46 13
03-25 40° 60° 819 444 163 46 13
03-26 32° 61° 844 458 167 46 13
03-27 43° 53° 870 474 173 46 13
03-28 33° 48° 888 483 173 46 13
03-29 30° 53° 908 493 173 46 13
03-30 28° 58° 929 503 174 46 13
03-31 45° 60° 959 524 184 48 13
04-01 36° 61° 986 541 191 48 13
04-02 35° 50° 1007 551 192 48 13
2023Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
04-03 39° 69° 1039 574 204 53 13
04-04 55° 69° 1080 604 225 65 21
04-05 60° 74° 1125 639 250 82 33
04-06 41° 59° 1153 658 258 83 33
04-07 37° 53° 1176 671 261 83 33
04-08 37° 55° 1200 685 265 83 33
04-09 35° 61° 1226 701 272 83 33
04-10 37° 68° 1257 721 282 85 33
04-11 40° 72° 1290 745 296 91 33
04-12 48° 76° 1330 775 315 102 40
04-13 46° 79° 1371 806 336 115 48
04-14 52° 73° 1412 836 357 128 56
2023Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
04-15 57° 78° 1457 872 382 145 68
04-16 45° 71° 1493 898 398 153 71
04-17 38° 45° 1513 908 398 153 71
04-18 32° 60° 1537 922 403 153 71
04-19 37° 78° 1573 947 418 161 74
04-20 55° 82° 1619 984 444 179 87
04-21 49° 68° 1655 1010 461 187 90
04-22 41° 55° 1681 1026 467 187 90
04-23 35° 45° 1699 1034 467 187 90
04-24 36° 47° 1719 1044 467 187 90
04-25 32° 56° 1741 1056 469 187 90
04-26 39° 59° 1768 1072 475 187 90
2023Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
04-27 36° 66° 1797 1091 484 188 90
04-28 48° 62° 1830 1114 497 193 90
04-29 51° 65° 1866 1141 514 201 93
04-30 42° 54° 1892 1157 520 201 93
05-01 39° 44° 1912 1167 520 201 93
05-02 41° 47° 1934 1179 523 201 93
05-03 40° 56° 1960 1195 528 201 93
05-04 36° 63° 1988 1212 536 201 93
05-05 41° 71° 2022 1237 550 208 95
05-06 47° 75° 2061 1266 569 219 101
05-07 59° 74° 2106 1300 594 235 112
05-08 58° 76° 2150 1335 619 252 124
2023Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
05-09 54° 69° 2190 1365 638 264 131
05-10 44° 74° 2228 1392 656 273 135
05-11 50° 81° 2271 1425 679 289 146
05-12 60° 78° 2318 1463 706 308 160
05-13 66° 74° 2366 1500 734 328 175
05-14 59° 76° 2412 1536 760 345 187
05-15 53° 73° 2453 1568 781 359 196
05-16 57° 64° 2491 1596 799 369 201
05-17 50° 66° 2527 1622 815 377 204
05-18 41° 73° 2562 1646 830 383 205
05-19 56° 79° 2607 1682 855 401 218
05-20 54° 67° 2646 1711 874 412 224
2023Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
05-21 44° 74° 2683 1738 891 421 228
05-22 50° 75° 2724 1769 912 434 236
05-23 54° 80° 2769 1804 937 451 248
05-24 54° 80° 2814 1839 962 468 260
05-25 47° 69° 2850 1865 979 476 263
05-26 45° 75° 2888 1893 997 486 268
05-27 49° 76° 2929 1924 1017 499 276
05-28 59° 77° 2975 1960 1043 517 289
05-29 57° 85° 3024 1999 1072 538 305
05-30 61° 84° 3074 2039 1102 560 322
05-31 63° 85° 3126 2081 1134 584 341
06-01 61° 88° 3178 2123 1167 608 360
2023Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
06-02 56° 90° 3230 2164 1198 632 379
06-03 64° 89° 3284 2209 1232 658 400
06-04 59° 85° 3334 2249 1262 680 417
06-05 53° 79° 3378 2283 1286 696 428
06-06 52° 83° 3424 2319 1312 714 441
06-07 54° 74° 3466 2351 1335 728 450
06-08 48° 75° 3506 2381 1354 740 457
06-09 52° 78° 3549 2414 1377 755 467
06-10 53° 84° 3595 2450 1403 773 480
06-11 59° 76° 3640 2485 1429 790 492
06-12 57° 69° 3681 2516 1449 803 500
06-13 51° 66° 3718 2543 1466 812 504
2023Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
06-14 59° 72° 3762 2576 1490 827 514
06-15 57° 80° 3808 2613 1516 846 528
06-16 55° 71° 3849 2644 1537 859 536
06-17 53° 77° 3892 2677 1560 874 546
06-18 56° 81° 3939 2713 1587 892 559
06-19 64° 70° 3984 2748 1612 910 572
06-20 66° 71° 4030 2785 1639 928 585
06-21 64° 81° 4081 2826 1669 951 603
06-22 60° 70° 4124 2859 1692 966 613
06-23 64° 75° 4172 2897 1720 986 628
06-24 66° 84° 4225 2940 1753 1011 648
06-25 66° 85° 4278 2983 1787 1036 668
2023Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
06-26 67° 79° 4330 3024 1818 1060 687
06-27 65° 72° 4376 3061 1844 1078 700
06-28 56° 80° 4422 3097 1870 1096 713
06-29 63° 87° 4475 3140 1903 1121 733
06-30 67° 90° 4532 3187 1940 1150 757
07-01 71° 83° 4587 3231 1975 1176 778
07-02 67° 81° 4639 3274 2007 1201 798
07-03 67° 79° 4690 3314 2038 1224 816
07-04 68° 86° 4745 3359 2073 1250 837
07-05 69° 85° 4800 3404 2108 1277 859
07-06 68° 82° 4853 3447 2141 1303 880
07-07 65° 83° 4905 3490 2173 1327 899
2023Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
07-08 66° 77° 4955 3529 2203 1348 915
07-09 65° 76° 5003 3567 2231 1369 931
07-10 59° 83° 5052 3607 2260 1390 947
07-11 62° 85° 5104 3648 2292 1413 965
07-12 65° 86° 5157 3692 2325 1439 986
07-13 72° 88° 5215 3740 2363 1469 1011
07-14 67° 88° 5270 3785 2399 1496 1033
07-15 68° 78° 5321 3826 2429 1519 1051
07-16 67° 82° 5374 3868 2462 1543 1070
07-17 64° 82° 5425 3910 2493 1567 1089
07-18 62° 81° 5475 3949 2523 1589 1106
07-19 64° 83° 5527 3991 2555 1612 1124
2023Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
07-20 70° 87° 5583 4038 2591 1641 1148
07-21 64° 78° 5632 4076 2620 1662 1164
07-22 60° 80° 5680 4114 2648 1682 1179
07-23 61° 83° 5729 4154 2677 1703 1195
07-24 63° 84° 5780 4195 2709 1726 1213
07-25 63° 85° 5833 4237 2741 1750 1232
07-26 68° 90° 5890 4285 2778 1780 1257
07-27 74° 88° 5948 4333 2817 1810 1282
07-28 72° 85° 6005 4380 2853 1839 1306
07-29 70° 84° 6060 4425 2888 1866 1328
07-30 65° 85° 6114 4468 2922 1891 1348
07-31 63° 79° 6163 4507 2951 1912 1364
2023Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
08-01 57° 80° 6210 4544 2978 1931 1378
08-02 59° 81° 6258 4582 3006 1951 1393
08-03 63° 85° 6310 4624 3038 1975 1412
08-04 63° 88° 6363 4668 3071 2001 1433
08-05 67° 82° 6416 4711 3104 2026 1453
08-06 71° 84° 6471 4756 3139 2053 1475
08-07 66° 76° 6520 4795 3168 2074 1491
08-08 62° 80° 6570 4834 3198 2095 1507
08-09 62° 79° 6618 4873 3226 2116 1523
08-10 66° 80° 6669 4914 3257 2139 1541
08-11 64° 83° 6721 4955 3289 2162 1559
08-12 69° 88° 6777 5002 3325 2191 1583
2023Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
08-13 61° 85° 6828 5043 3356 2214 1601
08-14 70° 78° 6881 5085 3389 2238 1620
08-15 64° 72° 6927 5121 3415 2256 1633
08-16 60° 77° 6973 5158 3441 2275 1647
08-17 61° 79° 7022 5196 3470 2295 1662
08-18 58° 75° 7066 5230 3494 2311 1673
08-19 53° 79° 7110 5265 3518 2328 1685
08-20 62° 88° 7163 5307 3551 2352 1704
08-21 72° 90° 7221 5356 3589 2383 1730
08-22 68° 84° 7276 5400 3624 2409 1751
08-23 65° 90° 7331 5446 3659 2437 1774
08-24 68° 86° 7386 5491 3694 2464 1796
2023Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
08-25 76° 90° 7447 5541 3735 2497 1824
08-26 71° 82° 7501 5586 3770 2523 1845
08-27 63° 78° 7550 5624 3798 2544 1861
08-28 57° 78° 7595 5660 3823 2561 1873
08-29 53° 80° 7640 5694 3848 2577 1884
08-30 58° 68° 7681 5725 3869 2590 1892
08-31 55° 74° 7723 5758 3891 2605 1902
09-01 53° 80° 7768 5793 3916 2622 1914
09-02 60° 88° 7820 5835 3948 2646 1933
09-03 67° 88° 7875 5880 3983 2673 1955
09-04 65° 89° 7930 5925 4018 2700 1977
09-05 68° 90° 7987 5972 4055 2729 2001
2023Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
09-06 70° 83° 8042 6017 4090 2756 2023
09-07 67° 75° 8091 6055 4119 2776 2038
09-08 64° 76° 8139 6093 4147 2796 2053
09-09 60° 75° 8185 6129 4173 2814 2066
09-10 57° 78° 8230 6164 4198 2831 2078
09-11 53° 81° 8275 6199 4223 2849 2091
09-12 61° 70° 8319 6233 4247 2865 2102
09-13 54° 73° 8360 6265 4268 2878 2110
09-14 49° 74° 8400 6294 4288 2890 2117
09-15 49° 74° 8439 6324 4307 2901 2123
09-16 46° 74° 8477 6352 4326 2911 2128
09-17 56° 75° 8521 6385 4349 2927 2139
2023Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
09-18 52° 73° 8561 6416 4369 2939 2146
09-19 45° 75° 8600 6444 4388 2949 2151
09-20 53° 80° 8644 6479 4412 2966 2163
09-21 55° 81° 8690 6515 4438 2984 2176
09-22 56° 80° 8737 6551 4465 3002 2189
09-23 50° 76° 8778 6582 4486 3015 2197
09-24 52° 77° 8820 6615 4508 3030 2207
09-25 62° 71° 8865 6649 4533 3047 2219
09-26 59° 75° 8910 6685 4558 3064 2231
09-27 60° 71° 8954 6718 4582 3080 2242
09-28 62° 71° 8998 6753 4606 3096 2253
09-29 60° 76° 9044 6789 4632 3114 2266
2023Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
09-30 56° 80° 9090 6825 4659 3132 2279

 

Latest Updates

March 18th, 2024Timing crabgrass preemergence applications in spring

Don't miss this update from from Kevin Frank regarding timing of crabgrass preemergence herbicides.


 

February 12th, 2024Welcome to the 2024 GDD Tracking Season

2024 might be the year that if you blinked you missed winter. We've already experienced some very unseasonably warm weather in February with temperatures in the 60's. Temperatures are remaining relatively mild but I wouldn't be surprised if winter resurfaced yet as we move through the rest of February and March. GDDTracker starts counting on February 15. Spring is typically the time of year when GDDTracker receives the most attention for alerting turfgrass managers of optimal application timing windows for suppressing annual bluegrass seedheads and crabgrass preemergence applications. However, there are many models you may find helpful throughout the season including the early season DMI timer and Smith-Kerns dollar spot prediction model. To learn about all the available models, click on the "About" tab at the top of the screen. Thanks for your continued support and use of GDDTracker and best wishes for a fantastic 2024!