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Early Season Fungicide App for Dollar Spot Suppression (GDD 50)
through Sat, Dec. 6. 2025

 
  

Demotte, IN

        

Generously Supported By:



Tabular Data

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

2025Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
02-15 26° 36° 9 0 0 0 0
02-16 16° 30° 10 0 0 0 0
02-17 3° 14° 10 0 0 0 0
02-18 -4° 14° 10 0 0 0 0
02-19 7° 20° 10 0 0 0 0
02-20 1° 23° 10 0 0 0 0
02-21 8° 31° 10 0 0 0 0
02-22 11° 37° 12 0 0 0 0
02-23 21° 48° 25 2 0 0 0
02-24 34° 56° 47 15 3 0 0
02-25 33° 56° 70 28 6 0 0
02-26 32° 50° 89 37 6 0 0
2025Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
02-27 33° 51° 109 47 6 0 0
02-28 31° 60° 133 61 9 0 0
02-29 n/a n/a n/a n/a n/a n/a n/a
03-01 19° 39° 139 61 9 0 0
03-02 14° 36° 142 61 9 0 0
03-03 28° 43° 156 64 9 0 0
03-04 41° 47° 178 76 11 0 0
03-05 29° 51° 195 84 11 0 0
03-06 26° 39° 206 84 11 0 0
03-07 30° 37° 218 86 11 0 0
03-08 30° 48° 235 93 11 0 0
03-09 31° 57° 256 105 13 0 0
2025Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
03-10 35° 67° 285 124 22 1 0
03-11 35° 54° 308 136 24 1 0
03-12 33° 62° 333 151 30 1 0
03-13 31° 68° 361 169 37 1 0
03-14 43° 78° 399 198 56 12 6
03-15 50° 68° 437 225 73 21 10
03-16 30° 45° 452 230 73 21 10
03-17 24° 52° 468 236 73 21 10
03-18 42° 72° 503 261 89 28 13
03-19 39° 68° 535 283 101 32 13
03-20 31° 41° 549 287 101 32 13
03-21 27° 58° 569 297 101 32 13
2025Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
03-22 35° 48° 589 307 101 32 13
03-23 32° 47° 606 315 101 32 13
03-24 34° 50° 626 325 101 32 13
03-25 30° 51° 645 333 101 32 13
03-26 29° 52° 663 342 101 32 13
03-27 39° 55° 689 357 106 32 13
03-28 48° 81° 731 389 128 46 22
03-29 58° 66° 771 419 149 58 29
03-30 49° 77° 812 450 169 71 37
03-31 33° 46° 830 458 169 71 37
04-01 29° 49° 847 465 169 71 37
04-02 40° 66° 878 486 180 74 37
2025Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
04-03 44° 63° 910 508 192 78 37
04-04 39° 51° 932 520 195 78 37
04-05 42° 48° 955 533 198 78 37
04-06 38° 46° 975 543 198 78 37
04-07 31° 44° 991 549 198 78 37
04-08 28° 42° 1003 552 198 78 37
04-09 31° 43° 1018 557 198 78 37
04-10 36° 49° 1039 567 198 78 37
04-11 34° 50° 1059 577 199 78 37
04-12 31° 60° 1083 591 202 78 37
04-13 47° 62° 1115 614 215 83 37
04-14 51° 63° 1151 639 230 90 39
2025Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
04-15 41° 55° 1177 655 236 90 39
04-16 33° 53° 1197 666 237 90 39
04-17 37° 65° 1226 684 245 91 39
04-18 54° 80° 1271 719 270 108 51
04-19 44° 69° 1306 744 285 114 53
04-20 47° 67° 1341 769 300 121 55
04-21 49° 61° 1374 792 313 126 55
04-22 39° 73° 1408 816 327 132 56
04-23 50° 78° 1450 848 349 147 65
04-24 49° 81° 1493 881 372 161 75
04-25 46° 67° 1527 905 387 168 76
04-26 42° 53° 1553 921 392 168 76
2025Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
04-27 33° 69° 1582 940 401 169 76
04-28 49° 82° 1625 974 425 184 87
04-29 54° 78° 1669 1007 449 200 98
04-30 44° 64° 1702 1030 461 205 98
05-01 53° 71° 1742 1060 481 217 105
05-02 48° 63° 1775 1084 495 223 106
05-03 44° 58° 1804 1102 504 223 106
05-04 45° 51° 1830 1118 510 223 106
05-05 47° 64° 1864 1142 523 229 106
05-06 45° 75° 1902 1170 541 239 111
05-07 49° 76° 1942 1201 562 252 119
05-08 46° 64° 1975 1223 575 256 119
2025Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
05-09 37° 66° 2005 1243 584 258 119
05-10 39° 75° 2040 1268 600 265 121
05-11 41° 78° 2078 1296 617 275 126
05-12 50° 81° 2121 1330 641 290 136
05-13 59° 79° 2169 1367 668 310 150
05-14 59° 80° 2216 1404 696 329 165
05-15 63° 92° 2272 1450 731 357 188
05-16 61° 87° 2324 1493 764 381 207
05-17 56° 70° 2365 1523 785 394 215
05-18 50° 66° 2401 1550 801 403 218
05-19 47° 63° 2434 1573 814 408 218
05-20 49° 60° 2467 1595 826 412 218
2025Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
05-21 50° 56° 2498 1616 837 415 218
05-22 46° 56° 2527 1635 846 416 218
05-23 38° 65° 2557 1655 856 418 218
05-24 42° 68° 2590 1678 869 423 219
05-25 53° 66° 2627 1705 887 432 223
05-26 44° 73° 2664 1732 903 441 226
05-27 55° 74° 2706 1764 925 455 235
05-28 53° 62° 2741 1790 941 462 238
05-29 49° 69° 2778 1816 958 471 242
05-30 52° 75° 2820 1848 979 485 250
05-31 48° 66° 2855 1873 995 492 253
06-01 40° 71° 2889 1897 1008 498 253
2025Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
06-02 44° 83° 2930 1928 1030 511 262
06-03 63° 89° 2984 1972 1063 537 282
06-04 57° 78° 3029 2008 1089 554 295
06-05 56° 66° 3069 2037 1108 566 301
06-06 61° 75° 3115 2073 1134 584 314
06-07 57° 78° 3160 2108 1159 601 326
06-08 62° 82° 3210 2148 1189 623 343
06-09 54° 76° 3253 2181 1212 638 353
06-10 51° 78° 3295 2213 1235 652 363
06-11 58° 88° 3346 2254 1265 675 381
06-12 63° 83° 3397 2296 1297 698 399
06-13 66° 73° 3445 2333 1324 718 413
2025Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
06-14 63° 77° 3493 2371 1352 738 428
06-15 60° 82° 3542 2410 1381 759 444
06-16 63° 85° 3594 2452 1413 783 463
06-17 68° 90° 3651 2499 1450 812 487
06-18 68° 86° 3706 2544 1485 839 509
06-19 65° 82° 3757 2585 1517 862 528
06-20 65° 84° 3809 2628 1549 886 547
06-21 73° 92° 3870 2678 1590 919 575
06-22 76° 92° 3933 2731 1632 954 604
06-23 75° 93° 3995 2783 1674 988 633
06-24 75° 94° 4057 2836 1717 1023 663
06-25 71° 91° 4116 2885 1756 1053 689
2025Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
06-26 73° 93° 4177 2935 1797 1086 717
06-27 73° 88° 4236 2984 1835 1117 742
06-28 66° 87° 4291 3029 1870 1144 764
06-29 70° 92° 4349 3078 1909 1175 790
06-30 73° 88° 4408 3126 1947 1205 815
07-01 69° 86° 4463 3171 1982 1232 837
07-02 63° 88° 4517 3215 2016 1258 858
07-03 66° 90° 4573 3261 2052 1286 881
07-04 69° 90° 4630 3308 2090 1315 906
07-05 70° 92° 4689 3357 2128 1346 931
07-06 71° 90° 4748 3406 2167 1377 957
07-07 66° 82° 4799 3448 2199 1401 976
2025Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
07-08 61° 88° 4852 3490 2231 1425 995
07-09 68° 83° 4905 3534 2265 1451 1016
07-10 64° 88° 4959 3578 2299 1476 1037
07-11 71° 90° 5018 3626 2337 1507 1063
07-12 72° 84° 5074 3672 2373 1535 1085
07-13 66° 82° 5126 3714 2406 1559 1105
07-14 61° 85° 5178 3756 2437 1583 1123
07-15 65° 91° 5234 3802 2473 1611 1146
07-16 72° 91° 5293 3851 2513 1642 1173
07-17 65° 78° 5343 3891 2542 1664 1189
07-18 61° 83° 5393 3931 2572 1686 1206
07-19 68° 82° 5446 3974 2605 1711 1226
2025Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
07-20 68° 78° 5497 4015 2636 1734 1245
07-21 65° 82° 5549 4057 2668 1758 1263
07-22 64° 83° 5600 4098 2700 1781 1282
07-23 66° 91° 5657 4145 2736 1810 1305
07-24 74° 95° 5719 4197 2778 1844 1335
07-25 71° 82° 5774 4242 2813 1871 1356
07-26 70° 80° 5827 4285 2846 1896 1376
07-27 72° 87° 5885 4333 2884 1926 1401
07-28 75° 90° 5945 4383 2924 1958 1428
07-29 67° 91° 6002 4430 2962 1987 1453
07-30 70° 85° 6058 4476 2997 2015 1475
07-31 62° 76° 6105 4513 3024 2034 1489
2025Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
08-01 57° 77° 6150 4548 3049 2051 1501
08-02 54° 77° 6193 4582 3073 2067 1512
08-03 55° 78° 6238 4616 3097 2083 1523
08-04 58° 81° 6285 4653 3125 2102 1538
08-05 58° 83° 6334 4692 3153 2123 1553
08-06 59° 85° 6384 4732 3183 2145 1570
08-07 68° 88° 6440 4778 3219 2173 1593
08-08 71° 89° 6498 4826 3257 2203 1618
08-09 69° 90° 6555 4873 3294 2232 1642
08-10 71° 90° 6613 4922 3333 2262 1668
08-11 71° 85° 6670 4968 3369 2291 1691
08-12 71° 89° 6728 5016 3407 2321 1716
2025Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
08-13 67° 85° 6782 5060 3441 2347 1737
08-14 61° 84° 6833 5101 3472 2370 1755
08-15 65° 90° 6888 5146 3507 2397 1777
08-16 74° 93° 6949 5197 3549 2430 1806
08-17 70° 85° 7005 5243 3584 2458 1828
08-18 69° 84° 7059 5287 3619 2484 1850
08-19 70° 81° 7113 5331 3652 2510 1870
08-20 67° 75° 7162 5370 3681 2531 1886
08-21 59° 77° 7208 5406 3707 2549 1899
08-22 58° 78° 7253 5442 3733 2567 1912
08-23 63° 84° 7305 5483 3764 2590 1930
08-24 55° 73° 7347 5515 3786 2604 1939
2025Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
08-25 52° 68° 7385 5543 3805 2614 1945
08-26 49° 71° 7423 5572 3823 2624 1950
08-27 48° 74° 7463 5601 3842 2636 1956
08-28 59° 76° 7508 5636 3867 2653 1969
08-29 49° 71° 7546 5665 3886 2663 1974
08-30 55° 74° 7589 5697 3908 2678 1983
08-31 51° 76° 7630 5728 3930 2691 1992
09-01 51° 78° 7672 5761 3952 2705 2001
09-02 53° 80° 7717 5795 3976 2722 2012
09-03 54° 77° 7760 5828 4000 2737 2023
09-04 49° 65° 7795 5853 4014 2744 2025
09-05 53° 68° 7834 5882 4033 2755 2030
2025Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
09-06 44° 66° 7866 5905 4046 2759 2030
09-07 42° 68° 7899 5927 4058 2764 2030
09-08 39° 71° 7932 5950 4071 2769 2030
09-09 42° 75° 7969 5977 4088 2778 2034
09-10 56° 82° 8016 6014 4115 2797 2048
09-11 59° 83° 8064 6053 4144 2817 2064
09-12 53° 84° 8111 6089 4170 2836 2077
09-13 60° 74° 8156 6124 4195 2853 2089
09-14 60° 85° 8207 6165 4226 2876 2107
09-15 58° 85° 8257 6205 4256 2898 2124
09-16 56° 82° 8304 6242 4283 2917 2138
09-17 55° 85° 8351 6280 4311 2936 2153
2025Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
09-18 55° 87° 8400 6318 4340 2957 2168
09-19 58° 88° 8452 6360 4371 2981 2187
09-20 64° 79° 8501 6399 4400 3002 2203
09-21 64° 83° 8553 6441 4432 3026 2222
09-22 64° 79° 8602 6480 4461 3047 2238
09-23 62° 76° 8649 6517 4488 3066 2252
09-24 62° 72° 8694 6552 4514 3083 2264
09-25 59° 73° 8738 6586 4537 3099 2275
09-26 52° 81° 8782 6621 4562 3116 2287
09-27 56° 86° 8831 6660 4591 3136 2303
09-28 56° 86° 8880 6699 4620 3157 2319
09-29 56° 89° 8931 6739 4650 3180 2336
2025Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
09-30 56° 84° 8979 6777 4678 3200 2351
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
02-15 32° 45° 16 6 0 0 0
02-16 20° 32° 20 6 0 0 0
02-17 12° 25° 20 6 0 0 0
02-18 17° 41° 28 6 0 0 0
02-19 22° 47° 40 9 0 0 0
02-20 27° 55° 60 18 0 0 0
02-21 39° 65° 90 38 10 2 0
02-22 40° 54° 114 53 15 2 0
02-23 32° 48° 132 61 15 2 0
02-24 23° 34° 139 61 15 2 0
02-25 30° 61° 162 75 18 2 0
02-26 33° 70° 192 94 28 4 0
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
02-27 54° 69° 232 124 48 16 7
02-28 25° 60° 253 135 49 16 7
02-29 20° 43° 262 135 49 16 7
03-01 29° 44° 276 139 49 16 7
03-02 36° 58° 301 154 53 16 7
03-03 39° 71° 334 177 67 21 7
03-04 51° 71° 373 206 86 32 13
03-05 39° 62° 401 225 94 32 13
03-06 37° 51° 423 236 96 32 13
03-07 35° 48° 443 246 96 32 13
03-08 42° 53° 468 261 101 32 13
03-09 33° 45° 485 268 101 32 13
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
03-10 30° 45° 500 273 101 32 13
03-11 29° 64° 525 288 106 32 13
03-12 40° 69° 558 311 119 37 13
03-13 45° 71° 594 337 135 45 16
03-14 44° 70° 629 362 150 52 18
03-15 37° 49° 650 373 151 52 18
03-16 35° 62° 676 390 157 52 18
03-17 33° 43° 692 395 157 52 18
03-18 27° 35° 701 395 157 52 18
03-19 28° 58° 722 406 158 52 18
03-20 29° 45° 737 412 158 52 18
03-21 26° 41° 749 413 158 52 18
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
03-22 31° 52° 769 423 158 52 18
03-23 30° 38° 780 424 158 52 18
03-24 30° 50° 799 433 158 52 18
03-25 41° 67° 831 455 171 56 18
03-26 37° 56° 855 469 175 56 18
03-27 31° 43° 870 474 175 56 18
03-28 27° 53° 888 482 175 56 18
03-29 34° 59° 913 497 180 56 18
03-30 41° 66° 945 519 191 60 18
03-31 38° 58° 971 535 197 60 18
04-01 45° 52° 997 551 204 60 18
04-02 36° 57° 1022 566 208 60 18
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
04-03 34° 38° 1036 570 208 60 18
04-04 35° 40° 1051 575 208 60 18
04-05 36° 46° 1070 584 208 60 18
04-06 31° 56° 1091 595 210 60 18
04-07 37° 55° 1115 609 214 60 18
04-08 44° 74° 1152 636 231 69 22
04-09 51° 66° 1189 663 247 78 26
04-10 42° 67° 1221 685 260 82 26
04-11 49° 55° 1252 706 270 84 26
04-12 46° 61° 1283 727 282 88 26
04-13 39° 70° 1316 750 294 92 26
04-14 56° 81° 1362 786 320 111 39
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
04-15 49° 69° 1399 813 337 120 43
04-16 51° 77° 1441 845 359 134 52
04-17 62° 66° 1483 877 382 148 62
04-18 46° 64° 1516 900 395 153 62
04-19 43° 55° 1544 918 402 153 62
04-20 34° 46° 1562 926 402 153 62
04-21 33° 46° 1579 933 402 153 62
04-22 36° 66° 1608 952 411 154 62
04-23 48° 55° 1638 972 421 156 62
04-24 37° 51° 1660 984 423 156 62
04-25 30° 58° 1682 996 425 156 62
04-26 40° 60° 1710 1014 433 156 62
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
04-27 58° 75° 1755 1049 458 173 73
04-28 61° 74° 1801 1085 484 190 86
04-29 60° 68° 1842 1116 505 204 95
04-30 47° 75° 1881 1145 524 215 101
05-01 58° 76° 1927 1181 550 232 113
05-02 51° 84° 1972 1216 575 250 125
05-03 53° 65° 2009 1243 592 259 130
05-04 49° 82° 2053 1277 616 274 140
05-05 49° 67° 2088 1303 632 282 143
05-06 46° 75° 2127 1331 650 293 148
05-07 56° 78° 2172 1366 675 309 160
05-08 52° 80° 2216 1400 699 325 171
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
05-09 52° 70° 2255 1429 718 337 177
05-10 47° 68° 2290 1454 733 344 180
05-11 50° 67° 2327 1481 750 352 183
05-12 46° 83° 2369 1513 772 367 192
05-13 60° 79° 2417 1551 800 386 207
05-14 54° 67° 2455 1579 818 397 213
05-15 54° 71° 2496 1610 839 410 220
05-16 51° 74° 2536 1640 859 422 228
05-17 59° 80° 2584 1678 887 441 242
05-18 60° 84° 2633 1717 916 463 259
05-19 64° 82° 2685 1759 948 486 277
05-20 62° 89° 2738 1802 981 512 298
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
05-21 63° 89° 2792 1846 1015 538 318
05-22 64° 77° 2841 1885 1044 558 334
05-23 54° 80° 2886 1920 1069 576 346
05-24 61° 80° 2934 1959 1098 596 362
05-25 61° 75° 2980 1995 1124 614 375
05-26 54° 75° 3023 2027 1146 629 384
05-27 58° 73° 3067 2061 1170 644 395
05-28 54° 73° 3108 2092 1191 658 404
05-29 53° 70° 3148 2122 1211 669 410
05-30 45° 74° 3185 2150 1229 679 415
05-31 49° 79° 3228 2182 1251 693 424
06-01 59° 69° 3270 2214 1273 707 433
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
06-02 58° 76° 3314 2249 1298 724 445
06-03 56° 86° 3363 2287 1326 745 461
06-04 67° 86° 3418 2332 1361 771 482
06-05 67° 78° 3468 2372 1391 794 500
06-06 64° 79° 3518 2412 1421 816 516
06-07 58° 80° 3564 2449 1448 834 530
06-08 56° 82° 3611 2485 1474 853 544
06-09 51° 79° 3655 2519 1498 869 554
06-10 54° 65° 3692 2546 1515 878 559
06-11 44° 77° 3731 2575 1534 889 564
06-12 60° 91° 3785 2619 1568 914 585
06-13 70° 90° 3843 2667 1606 944 610
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
06-14 64° 86° 3896 2710 1639 969 630
06-15 59° 83° 3945 2749 1668 990 646
06-16 62° 92° 3999 2793 1702 1017 668
06-17 76° 94° 4062 2846 1745 1052 697
06-18 73° 89° 4121 2895 1784 1083 723
06-19 75° 92° 4182 2946 1825 1116 752
06-20 71° 93° 4242 2996 1865 1148 779
06-21 67° 92° 4300 3044 1903 1177 803
06-22 73° 91° 4360 3094 1943 1209 830
06-23 68° 83° 4413 3137 1976 1235 850
06-24 61° 85° 4464 3178 2007 1258 868
06-25 68° 81° 4517 3221 2040 1282 888
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
06-26 69° 82° 4570 3264 2073 1308 908
06-27 61° 75° 4616 3300 2099 1326 922
06-28 60° 79° 4663 3337 2126 1345 936
06-29 72° 89° 4722 3386 2165 1376 961
06-30 56° 78° 4766 3420 2189 1392 972
07-01 47° 76° 4805 3450 2209 1403 979
07-02 58° 83° 4854 3488 2237 1424 995
07-03 73° 85° 4912 3536 2275 1453 1019
07-04 67° 82° 4964 3578 2307 1478 1038
07-05 62° 83° 5015 3619 2338 1501 1056
07-06 61° 81° 5064 3658 2367 1521 1072
07-07 60° 90° 5116 3701 2400 1546 1092
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
07-08 68° 86° 5171 3745 2434 1573 1114
07-09 69° 75° 5222 3786 2465 1595 1131
07-10 65° 81° 5273 3827 2496 1618 1149
07-11 63° 81° 5323 3867 2526 1640 1166
07-12 64° 84° 5375 3909 2558 1664 1185
07-13 65° 88° 5429 3953 2592 1691 1207
07-14 67° 84° 5482 3997 2626 1716 1227
07-15 66° 87° 5537 4041 2660 1743 1249
07-16 67° 82° 5590 4084 2693 1767 1268
07-17 65° 80° 5641 4125 2724 1790 1286
07-18 60° 71° 5685 4159 2748 1806 1297
07-19 52° 75° 5726 4190 2769 1820 1306
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
07-20 55° 78° 5771 4225 2794 1836 1317
07-21 59° 80° 5818 4262 2821 1856 1331
07-22 62° 80° 5867 4301 2850 1877 1348
07-23 61° 82° 5917 4341 2880 1899 1364
07-24 64° 77° 5966 4380 2909 1919 1380
07-25 61° 78° 6013 4418 2937 1939 1395
07-26 52° 79° 6057 4451 2960 1954 1405
07-27 57° 81° 6104 4488 2987 1973 1419
07-28 63° 79° 6153 4527 3016 1995 1435
07-29 69° 84° 6208 4572 3051 2021 1457
07-30 67° 88° 6263 4617 3086 2049 1480
07-31 68° 87° 6319 4663 3122 2076 1502
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
08-01 71° 84° 6374 4708 3157 2104 1524
08-02 67° 81° 6426 4750 3189 2128 1544
08-03 66° 89° 6481 4795 3224 2155 1566
08-04 66° 88° 6536 4841 3260 2182 1588
08-05 70° 91° 6595 4889 3298 2213 1613
08-06 69° 82° 6648 4932 3331 2238 1633
08-07 64° 78° 6697 4971 3360 2259 1650
08-08 58° 81° 6745 5009 3388 2279 1664
08-09 62° 72° 6790 5044 3413 2296 1676
08-10 52° 73° 6830 5075 3434 2308 1684
08-11 52° 76° 6872 5106 3455 2322 1693
08-12 52° 76° 6914 5138 3477 2336 1702
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
08-13 54° 82° 6961 5175 3504 2354 1715
08-14 55° 83° 7008 5212 3531 2374 1729
08-15 64° 74° 7055 5249 3558 2393 1744
08-16 67° 85° 7109 5294 3593 2419 1765
08-17 65° 76° 7158 5332 3621 2440 1781
08-18 64° 75° 7205 5369 3648 2459 1795
08-19 61° 74° 7251 5405 3674 2477 1808
08-20 52° 71° 7291 5435 3694 2488 1814
08-21 47° 74° 7329 5463 3712 2499 1820
08-22 48° 76° 7369 5493 3732 2511 1826
08-23 49° 80° 7411 5525 3754 2525 1836
08-24 55° 89° 7461 5565 3784 2547 1853
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
08-25 66° 89° 7517 5611 3820 2575 1875
08-26 72° 91° 7577 5661 3860 2606 1902
08-27 72° 95° 7638 5712 3901 2639 1930
08-28 69° 84° 7692 5756 3935 2666 1951
08-29 66° 87° 7747 5801 3970 2692 1973
08-30 71° 90° 7805 5849 4008 2723 1999
08-31 66° 83° 7858 5892 4041 2748 2018
09-01 59° 76° 7904 5928 4067 2765 2031
09-02 49° 74° 7943 5957 4086 2777 2038
09-03 48° 75° 7983 5987 4106 2789 2044
09-04 47° 82° 8026 6020 4129 2803 2054
09-05 59° 87° 8076 6060 4159 2826 2072
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
09-06 56° 73° 8119 6093 4182 2841 2081
09-07 48° 65° 8154 6118 4197 2847 2083
09-08 42° 70° 8188 6142 4211 2854 2084
09-09 48° 79° 8229 6173 4232 2867 2092
09-10 47° 81° 8271 6205 4254 2880 2101
09-11 48° 85° 8315 6239 4278 2897 2113
09-12 54° 87° 8364 6278 4307 2918 2128
09-13 59° 84° 8413 6318 4337 2939 2145
09-14 61° 89° 8466 6360 4369 2964 2165
09-15 59° 87° 8517 6401 4400 2987 2183
09-16 54° 89° 8567 6441 4430 3008 2199
09-17 52° 86° 8614 6478 4457 3027 2213
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
09-18 50° 87° 8661 6515 4484 3046 2227
09-19 53° 89° 8709 6553 4512 3067 2243
09-20 60° 85° 8760 6594 4543 3090 2261
09-21 59° 90° 8813 6637 4576 3114 2280
09-22 62° 72° 8857 6672 4601 3131 2292
09-23 60° 67° 8899 6703 4622 3145 2300
09-24 62° 68° 8942 6736 4645 3160 2310
09-25 57° 75° 8986 6770 4669 3176 2321
09-26 50° 78° 9028 6802 4691 3190 2331
09-27 61° 73° 9073 6838 4717 3207 2343
09-28 61° 71° 9117 6871 4740 3223 2354
09-29 64° 79° 9167 6911 4770 3244 2370
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
09-30 59° 76° 9212 6946 4795 3262 2383

 

Latest Updates

February 15th, 2025Welcome to the 2025 GDD Tracking Season

Although winter seems very much entrenched in the Great Lakes region with snow and frigid temperatures in the forecast, GDDTracker starts counting on February 15. Spring is when GDDTracker receives the most attention for alerting turfgrass managers of optimal application timing windows for suppressing annual bluegrass seedheads and crabgrass preemergence applications. Beyond the spring models, there are several models that may be helpful throughout the season including the early season dollar spot DMI timer and the 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 successful 2025!
 

March 18th, 2024Timing crabgrass preemergence applications in spring

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


 

 

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