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Bluegrass Billbug Activity - OSU (GDD 50)
through Fri, Nov. 7. 2025

 
  

Schererville, 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 25° 34° 8 0 0 0 0
02-16 14° 30° 8 0 0 0 0
02-17 3° 12° 8 0 0 0 0
02-18 -6° 14° 8 0 0 0 0
02-19 5° 20° 8 0 0 0 0
02-20 1° 23° 8 0 0 0 0
02-21 8° 31° 8 0 0 0 0
02-22 12° 36° 10 0 0 0 0
02-23 21° 48° 22 3 0 0 0
02-24 37° 55° 46 17 4 0 0
02-25 35° 56° 70 30 7 0 0
02-26 32° 51° 89 39 7 0 0
2025Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
02-27 34° 51° 109 50 7 0 0
02-28 30° 59° 132 62 10 0 0
02-29 n/a n/a n/a n/a n/a n/a n/a
03-01 20° 39° 139 62 10 0 0
03-02 15° 37° 143 62 10 0 0
03-03 27° 44° 157 66 10 0 0
03-04 41° 47° 179 77 12 0 0
03-05 29° 51° 197 86 12 0 0
03-06 26° 39° 208 86 12 0 0
03-07 31° 37° 219 88 12 0 0
03-08 30° 48° 237 95 12 0 0
03-09 31° 57° 259 107 14 0 0
2025Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
03-10 37° 67° 288 127 23 2 0
03-11 35° 55° 312 141 27 2 0
03-12 33° 57° 335 154 30 2 0
03-13 30° 67° 361 170 36 2 0
03-14 46° 78° 401 200 56 14 7
03-15 47° 69° 437 226 72 21 10
03-16 29° 44° 452 230 72 21 10
03-17 24° 52° 467 236 72 21 10
03-18 45° 73° 504 263 89 30 13
03-19 37° 66° 534 282 98 32 13
03-20 31° 42° 548 287 98 32 13
03-21 30° 58° 569 298 100 32 13
2025Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
03-22 34° 50° 590 308 100 32 13
03-23 32° 46° 607 316 100 32 13
03-24 34° 49° 626 325 100 32 13
03-25 28° 50° 643 332 100 32 13
03-26 29° 51° 662 341 100 32 13
03-27 40° 53° 686 355 105 32 13
03-28 48° 80° 728 387 127 45 22
03-29 57° 67° 768 417 147 58 29
03-30 48° 78° 809 448 168 70 37
03-31 34° 46° 827 456 168 70 37
04-01 30° 48° 844 463 168 70 37
04-02 40° 66° 875 484 179 74 37
2025Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
04-03 44° 64° 907 506 190 77 37
04-04 39° 51° 930 519 194 77 37
04-05 41° 50° 954 532 197 77 37
04-06 36° 47° 973 542 197 77 37
04-07 31° 43° 988 547 197 77 37
04-08 25° 42° 999 548 197 77 37
04-09 31° 43° 1015 553 197 77 37
04-10 38° 47° 1035 564 197 77 37
04-11 35° 50° 1055 574 198 77 37
04-12 29° 61° 1078 587 201 77 37
04-13 51° 63° 1113 612 216 84 39
04-14 53° 63° 1149 638 231 92 42
2025Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
04-15 40° 55° 1175 653 237 92 42
04-16 32° 53° 1195 664 238 92 42
04-17 37° 64° 1224 683 246 93 42
04-18 57° 79° 1270 719 272 111 55
04-19 43° 69° 1304 743 286 117 56
04-20 48° 66° 1339 768 301 124 58
04-21 49° 61° 1372 791 315 129 58
04-22 40° 73° 1407 816 329 136 60
04-23 52° 76° 1449 848 351 150 69
04-24 51° 79° 1492 881 374 165 79
04-25 45° 65° 1525 904 387 170 79
04-26 41° 52° 1550 919 392 170 79
2025Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
04-27 33° 69° 1579 938 401 171 79
04-28 52° 83° 1624 973 427 189 91
04-29 53° 76° 1667 1006 450 203 101
04-30 45° 65° 1700 1029 462 208 101
05-01 53° 69° 1739 1058 482 219 107
05-02 46° 60° 1770 1079 493 223 107
05-03 44° 53° 1797 1096 499 223 107
05-04 44° 50° 1822 1111 504 223 107
05-05 47° 62° 1854 1133 517 227 107
05-06 45° 75° 1892 1161 535 237 112
05-07 47° 76° 1932 1191 554 249 119
05-08 45° 61° 1963 1212 565 252 119
2025Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
05-09 37° 64° 1991 1230 574 252 119
05-10 41° 75° 2027 1256 590 260 122
05-11 42° 76° 2064 1283 606 269 126
05-12 50° 80° 2107 1316 630 284 136
05-13 61° 78° 2154 1353 657 303 150
05-14 58° 80° 2201 1390 684 322 164
05-15 64° 93° 2258 1437 720 351 187
05-16 61° 87° 2310 1479 752 375 207
05-17 55° 71° 2351 1509 773 387 214
05-18 49° 64° 2385 1534 788 394 216
05-19 46° 57° 2415 1554 797 396 216
05-20 49° 59° 2447 1576 809 400 216
2025Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
05-21 50° 55° 2477 1596 820 402 216
05-22 47° 56° 2507 1616 829 404 216
05-23 40° 63° 2536 1635 839 405 216
05-24 41° 67° 2569 1658 851 410 216
05-25 52° 65° 2605 1684 867 418 219
05-26 44° 70° 2639 1708 882 424 221
05-27 54° 70° 2679 1738 902 436 228
05-28 54° 61° 2715 1764 917 444 230
05-29 50° 69° 2752 1791 935 453 235
05-30 52° 74° 2794 1822 956 466 243
05-31 49° 64° 2828 1847 971 473 244
06-01 40° 69° 2861 1869 983 477 244
2025Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
06-02 44° 84° 2903 1902 1005 492 254
06-03 65° 89° 2958 1947 1040 519 276
06-04 57° 79° 3004 1983 1066 537 289
06-05 57° 67° 3043 2012 1086 548 295
06-06 60° 77° 3090 2049 1113 567 309
06-07 58° 79° 3136 2085 1139 585 322
06-08 61° 82° 3185 2124 1168 606 338
06-09 54° 76° 3228 2157 1191 621 348
06-10 53° 78° 3272 2191 1215 637 359
06-11 61° 90° 3326 2235 1248 663 380
06-12 64° 85° 3378 2277 1281 687 399
06-13 64° 74° 3426 2315 1308 707 414
2025Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
06-14 64° 77° 3474 2353 1337 727 429
06-15 60° 83° 3524 2393 1366 749 446
06-16 63° 86° 3576 2435 1399 773 465
06-17 70° 91° 3634 2483 1437 803 490
06-18 68° 84° 3688 2527 1471 829 511
06-19 65° 81° 3740 2569 1502 853 530
06-20 66° 83° 3792 2611 1535 877 549
06-21 74° 93° 3854 2663 1577 911 578
06-22 78° 93° 3918 2716 1620 946 608
06-23 77° 93° 3981 2769 1663 981 638
06-24 76° 94° 4044 2823 1706 1017 669
06-25 71° 90° 4102 2871 1745 1047 694
2025Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
06-26 74° 96° 4165 2924 1788 1082 724
06-27 75° 90° 4226 2975 1828 1115 752
06-28 67° 88° 4281 3020 1864 1142 774
06-29 72° 91° 4341 3070 1904 1174 801
06-30 73° 89° 4401 3120 1943 1206 828
07-01 70° 86° 4457 3166 1979 1234 851
07-02 66° 89° 4512 3211 2014 1261 873
07-03 68° 91° 4569 3258 2052 1290 897
07-04 71° 91° 4629 3308 2091 1322 924
07-05 72° 92° 4689 3358 2131 1354 951
07-06 70° 87° 4745 3404 2168 1382 974
07-07 66° 82° 4797 3446 2200 1406 993
2025Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
07-08 64° 87° 4851 3490 2233 1432 1014
07-09 68° 81° 4904 3532 2266 1456 1033
07-10 65° 88° 4958 3577 2300 1483 1055
07-11 71° 90° 5016 3625 2339 1513 1080
07-12 71° 83° 5071 3670 2374 1540 1102
07-13 67° 82° 5124 3713 2406 1565 1122
07-14 60° 86° 5175 3754 2438 1588 1140
07-15 66° 91° 5232 3801 2474 1617 1164
07-16 72° 91° 5292 3851 2514 1649 1191
07-17 65° 75° 5340 3889 2542 1669 1206
07-18 59° 83° 5389 3928 2571 1690 1222
07-19 69° 82° 5443 3971 2605 1715 1242
2025Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
07-20 69° 76° 5493 4012 2635 1738 1260
07-21 65° 83° 5545 4054 2667 1762 1279
07-22 65° 85° 5598 4097 2700 1787 1299
07-23 67° 91° 5655 4144 2737 1816 1323
07-24 74° 96° 5718 4196 2780 1850 1352
07-25 72° 82° 5773 4242 2815 1878 1375
07-26 71° 80° 5827 4285 2849 1903 1395
07-27 73° 87° 5885 4334 2887 1934 1421
07-28 76° 90° 5946 4384 2928 1966 1448
07-29 69° 92° 6004 4433 2966 1997 1474
07-30 71° 84° 6059 4478 3002 2024 1496
07-31 64° 75° 6107 4516 3029 2044 1511
2025Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
08-01 59° 76° 6152 4551 3055 2061 1523
08-02 56° 78° 6197 4586 3080 2078 1535
08-03 56° 79° 6243 4622 3105 2096 1548
08-04 60° 82° 6292 4661 3134 2117 1564
08-05 60° 83° 6342 4701 3164 2139 1581
08-06 62° 86° 6394 4743 3197 2163 1600
08-07 70° 89° 6452 4791 3234 2193 1625
08-08 72° 90° 6511 4840 3273 2224 1651
08-09 71° 91° 6570 4889 3312 2255 1677
08-10 74° 91° 6630 4939 3352 2287 1704
08-11 73° 87° 6688 4987 3390 2317 1729
08-12 71° 90° 6746 5035 3429 2347 1754
2025Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
08-13 68° 84° 6801 5079 3463 2373 1775
08-14 64° 85° 6853 5122 3495 2398 1795
08-15 65° 90° 6909 5167 3531 2425 1817
08-16 74° 94° 6971 5220 3573 2460 1847
08-17 70° 84° 7026 5265 3608 2487 1869
08-18 70° 84° 7081 5310 3643 2514 1891
08-19 70° 79° 7133 5352 3676 2538 1910
08-20 69° 74° 7183 5392 3706 2560 1927
08-21 61° 76° 7229 5428 3732 2578 1940
08-22 60° 79° 7277 5465 3759 2597 1954
08-23 64° 83° 7329 5507 3791 2621 1973
08-24 56° 73° 7371 5540 3813 2636 1983
2025Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
08-25 53° 68° 7410 5568 3832 2646 1988
08-26 51° 72° 7449 5597 3851 2657 1994
08-27 49° 75° 7488 5627 3871 2669 2001
08-28 60° 75° 7534 5663 3897 2687 2014
08-29 51° 71° 7573 5692 3915 2698 2020
08-30 57° 73° 7616 5725 3939 2713 2030
08-31 51° 75° 7657 5756 3960 2726 2038
09-01 53° 77° 7700 5789 3983 2741 2048
09-02 55° 80° 7746 5825 4008 2759 2061
09-03 57° 75° 7790 5858 4032 2774 2071
09-04 49° 66° 7825 5884 4047 2782 2074
09-05 54° 68° 7864 5913 4067 2793 2080
2025Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
09-06 45° 66° 7897 5936 4080 2798 2080
09-07 43° 67° 7930 5959 4093 2803 2080
09-08 42° 71° 7965 5984 4107 2810 2082
09-09 44° 75° 8003 6011 4125 2819 2086
09-10 57° 81° 8050 6049 4153 2839 2101
09-11 62° 82° 8100 6089 4182 2861 2118
09-12 56° 84° 8148 6127 4210 2881 2133
09-13 64° 76° 8196 6165 4238 2901 2148
09-14 62° 85° 8247 6206 4270 2924 2166
09-15 60° 85° 8298 6247 4300 2947 2184
09-16 58° 82° 8346 6285 4328 2967 2199
09-17 56° 84° 8394 6323 4356 2987 2214
2025Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
09-18 57° 87° 8444 6363 4386 3009 2231
09-19 60° 89° 8497 6405 4419 3033 2250
09-20 65° 79° 8547 6446 4449 3056 2268
09-21 64° 83° 8599 6487 4481 3079 2286
09-22 65° 80° 8649 6528 4511 3102 2304
09-23 64° 77° 8697 6566 4540 3122 2319
09-24 62° 72° 8742 6601 4565 3139 2331
09-25 59° 73° 8787 6635 4589 3155 2342
09-26 52° 81° 8831 6670 4613 3172 2354
09-27 58° 85° 8881 6710 4643 3194 2371
09-28 58° 83° 8929 6748 4672 3214 2386
09-29 58° 88° 8980 6789 4703 3237 2404
2025Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
09-30 59° 83° 9029 6828 4732 3258 2420
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
02-15 32° 44° 16 6 0 0 0
02-16 24° 30° 21 6 0 0 0
02-17 12° 24° 21 6 0 0 0
02-18 18° 43° 29 6 0 0 0
02-19 22° 48° 42 9 0 0 0
02-20 28° 55° 62 18 0 0 0
02-21 42° 64° 93 39 11 3 0
02-22 41° 52° 118 54 16 3 0
02-23 29° 47° 134 60 16 3 0
02-24 21° 33° 139 60 16 3 0
02-25 31° 59° 162 73 19 3 0
02-26 36° 70° 193 95 30 6 0
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
02-27 55° 70° 234 125 50 19 7
02-28 23° 59° 253 134 50 19 7
02-29 20° 44° 263 134 50 19 7
03-01 27° 44° 276 138 50 19 7
03-02 33° 58° 300 151 54 19 7
03-03 41° 71° 334 175 68 25 8
03-04 52° 71° 374 205 88 37 15
03-05 38° 62° 402 223 96 37 15
03-06 36° 48° 422 234 96 37 15
03-07 35° 48° 442 243 96 37 15
03-08 41° 51° 466 257 100 37 15
03-09 32° 45° 482 264 100 37 15
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
03-10 30° 45° 498 269 100 37 15
03-11 28° 64° 522 284 104 37 15
03-12 42° 69° 556 307 118 42 16
03-13 46° 70° 592 333 134 50 19
03-14 44° 68° 626 357 148 56 20
03-15 37° 48° 646 368 148 56 20
03-16 36° 60° 672 384 155 56 20
03-17 32° 42° 688 389 155 56 20
03-18 25° 34° 695 389 155 56 20
03-19 28° 57° 716 400 156 56 20
03-20 28° 46° 731 405 156 56 20
03-21 23° 41° 741 405 156 56 20
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
03-22 31° 47° 758 412 156 56 20
03-23 28° 36° 768 412 156 56 20
03-24 29° 50° 786 420 156 56 20
03-25 44° 66° 819 443 169 61 20
03-26 35° 56° 843 457 172 61 20
03-27 29° 43° 857 461 172 61 20
03-28 26° 52° 874 468 172 61 20
03-29 34° 57° 897 481 176 61 20
03-30 41° 63° 927 501 186 64 20
03-31 37° 53° 951 515 189 64 20
04-01 43° 52° 976 530 195 64 20
04-02 36° 59° 1001 545 200 64 20
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
04-03 34° 37° 1015 549 200 64 20
04-04 36° 40° 1031 555 200 64 20
04-05 37° 46° 1050 564 200 64 20
04-06 31° 53° 1070 574 200 64 20
04-07 38° 53° 1093 587 203 64 20
04-08 46° 73° 1130 614 221 73 24
04-09 52° 64° 1166 640 236 81 27
04-10 42° 66° 1198 662 248 85 27
04-11 49° 54° 1228 682 258 86 27
04-12 48° 61° 1260 704 270 90 27
04-13 40° 71° 1293 727 283 96 27
04-14 61° 79° 1341 765 311 116 42
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
04-15 49° 69° 1378 792 329 125 46
04-16 53° 76° 1421 825 351 139 56
04-17 61° 67° 1462 856 373 153 64
04-18 46° 64° 1496 880 386 158 65
04-19 42° 56° 1523 897 393 158 65
04-20 35° 47° 1542 906 393 158 65
04-21 33° 47° 1560 914 393 158 65
04-22 37° 65° 1589 933 402 159 65
04-23 51° 57° 1621 955 414 164 65
04-24 33° 52° 1642 966 415 164 65
04-25 30° 59° 1664 978 418 164 65
04-26 42° 60° 1693 997 427 165 65
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
04-27 58° 77° 1739 1033 452 182 77
04-28 61° 75° 1785 1069 478 200 90
04-29 60° 69° 1827 1101 501 215 100
04-30 48° 74° 1867 1131 520 226 106
05-01 59° 76° 1912 1166 545 243 118
05-02 52° 81° 1956 1200 570 260 130
05-03 53° 64° 1993 1227 586 268 133
05-04 49° 81° 2036 1260 609 283 143
05-05 49° 65° 2071 1285 624 290 145
05-06 46° 75° 2109 1313 643 301 151
05-07 57° 76° 2154 1348 668 318 162
05-08 53° 79° 2198 1382 692 334 174
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
05-09 52° 68° 2236 1410 710 344 179
05-10 48° 67° 2272 1436 725 351 181
05-11 50° 66° 2308 1462 741 359 184
05-12 47° 83° 2351 1495 764 374 194
05-13 61° 79° 2399 1533 793 395 209
05-14 53° 63° 2435 1559 808 402 212
05-15 54° 67° 2474 1588 827 413 218
05-16 51° 73° 2514 1618 847 425 225
05-17 58° 79° 2560 1654 873 443 238
05-18 59° 84° 2610 1694 903 465 255
05-19 63° 77° 2658 1732 932 486 271
05-20 61° 87° 2711 1775 964 510 290
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
05-21 62° 89° 2764 1818 997 535 310
05-22 64° 80° 2815 1859 1028 558 328
05-23 55° 80° 2860 1894 1053 575 340
05-24 63° 78° 2909 1933 1082 596 356
05-25 59° 74° 2953 1967 1107 613 368
05-26 55° 75° 2997 2001 1130 628 378
05-27 58° 73° 3040 2034 1154 644 389
05-28 54° 72° 3082 2066 1175 657 397
05-29 53° 68° 3120 2094 1193 667 402
05-30 45° 71° 3156 2120 1210 676 406
05-31 49° 79° 3198 2152 1232 690 415
06-01 60° 69° 3241 2185 1254 704 424
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
06-02 57° 76° 3286 2220 1279 721 436
06-03 55° 87° 3335 2259 1308 742 452
06-04 69° 86° 3390 2304 1344 770 475
06-05 69° 80° 3443 2347 1376 794 494
06-06 65° 79° 3493 2387 1406 816 511
06-07 59° 79° 3540 2424 1433 835 525
06-08 57° 81° 3587 2461 1460 854 539
06-09 53° 80° 3632 2496 1485 871 551
06-10 54° 66° 3670 2524 1503 881 556
06-11 45° 79° 3710 2554 1523 893 563
06-12 64° 92° 3766 2600 1559 921 586
06-13 72° 91° 3826 2650 1599 953 613
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
06-14 65° 86° 3879 2693 1633 979 634
06-15 59° 85° 3929 2733 1662 1000 650
06-16 65° 93° 3986 2780 1700 1030 674
06-17 77° 94° 4050 2834 1743 1065 705
06-18 76° 91° 4111 2885 1784 1098 733
06-19 76° 92° 4173 2937 1827 1133 762
06-20 68° 91° 4231 2985 1864 1162 787
06-21 67° 92° 4288 3032 1901 1191 811
06-22 75° 91° 4349 3083 1943 1225 839
06-23 68° 84° 4404 3128 1977 1251 861
06-24 62° 86° 4456 3170 2009 1275 880
06-25 70° 82° 4509 3213 2043 1301 901
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
06-26 70° 85° 4565 3259 2078 1328 923
06-27 62° 74° 4611 3295 2104 1346 936
06-28 61° 77° 4657 3331 2131 1365 950
06-29 72° 89° 4716 3380 2169 1395 975
06-30 58° 79° 4761 3415 2195 1413 988
07-01 49° 76° 4802 3446 2216 1426 996
07-02 61° 84° 4853 3487 2247 1449 1013
07-03 73° 87° 4911 3535 2285 1479 1039
07-04 68° 82° 4965 3579 2318 1504 1059
07-05 63° 83° 5016 3620 2349 1527 1077
07-06 62° 79° 5065 3659 2378 1548 1093
07-07 61° 88° 5118 3702 2411 1573 1113
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
07-08 68° 86° 5172 3746 2446 1600 1135
07-09 69° 76° 5223 3787 2476 1622 1152
07-10 65° 81° 5274 3828 2508 1646 1170
07-11 65° 80° 5325 3869 2538 1668 1188
07-12 65° 85° 5377 3911 2571 1693 1208
07-13 66° 90° 5433 3957 2606 1720 1230
07-14 67° 85° 5487 4001 2641 1747 1252
07-15 67° 88° 5543 4047 2676 1774 1274
07-16 67° 83° 5596 4090 2709 1799 1294
07-17 66° 82° 5648 4132 2741 1823 1313
07-18 62° 73° 5693 4167 2767 1841 1325
07-19 53° 78° 5737 4201 2790 1856 1336
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
07-20 56° 79° 5782 4236 2816 1874 1348
07-21 61° 82° 5832 4276 2845 1895 1365
07-22 63° 82° 5882 4316 2876 1918 1383
07-23 63° 84° 5934 4358 2907 1941 1401
07-24 65° 77° 5983 4397 2936 1962 1417
07-25 61° 79° 6031 4435 2964 1982 1432
07-26 53° 80° 6075 4469 2989 1999 1444
07-27 58° 83° 6124 4508 3017 2019 1459
07-28 66° 81° 6176 4550 3049 2043 1478
07-29 71° 85° 6231 4595 3085 2071 1501
07-30 68° 91° 6289 4643 3122 2100 1525
07-31 69° 89° 6346 4690 3159 2129 1549
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
08-01 71° 87° 6402 4736 3195 2157 1572
08-02 69° 82° 6456 4780 3229 2183 1593
08-03 68° 90° 6513 4827 3266 2212 1617
08-04 68° 89° 6569 4873 3303 2241 1641
08-05 71° 92° 6629 4923 3342 2272 1667
08-06 69° 80° 6682 4966 3375 2297 1687
08-07 64° 78° 6731 5005 3404 2318 1703
08-08 59° 83° 6779 5043 3433 2339 1719
08-09 61° 73° 6825 5079 3458 2356 1731
08-10 54° 74° 6867 5111 3480 2370 1740
08-11 54° 77° 6910 5144 3503 2385 1750
08-12 54° 78° 6954 5178 3527 2401 1761
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
08-13 55° 83° 7001 5215 3554 2420 1775
08-14 58° 85° 7050 5254 3584 2442 1791
08-15 65° 75° 7099 5293 3612 2462 1807
08-16 67° 86° 7153 5337 3646 2488 1828
08-17 66° 77° 7203 5377 3676 2510 1845
08-18 66° 75° 7251 5415 3705 2531 1861
08-19 64° 75° 7299 5453 3732 2550 1875
08-20 56° 71° 7340 5484 3753 2563 1883
08-21 49° 75° 7380 5514 3774 2576 1890
08-22 49° 77° 7421 5545 3795 2589 1899
08-23 50° 80° 7465 5579 3818 2604 1909
08-24 57° 90° 7516 5620 3849 2627 1927
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
08-25 69° 90° 7573 5667 3887 2657 1952
08-26 74° 93° 7635 5719 3928 2690 1980
08-27 74° 96° 7698 5772 3971 2725 2010
08-28 70° 83° 7752 5816 4005 2751 2031
08-29 69° 88° 7808 5862 4042 2780 2055
08-30 73° 88° 7867 5911 4080 2810 2080
08-31 64° 84° 7919 5953 4112 2834 2099
09-01 62° 75° 7965 5989 4138 2852 2112
09-02 52° 74° 8006 6020 4159 2865 2120
09-03 50° 76° 8047 6051 4181 2879 2129
09-04 50° 83° 8092 6086 4205 2895 2140
09-05 61° 88° 8144 6128 4237 2919 2159
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
09-06 58° 74° 8188 6162 4261 2935 2170
09-07 49° 65° 8223 6187 4276 2942 2172
09-08 44° 71° 8258 6212 4292 2950 2175
09-09 50° 79° 8301 6245 4315 2965 2185
09-10 50° 81° 8345 6279 4338 2980 2195
09-11 51° 86° 8392 6316 4365 2999 2209
09-12 57° 88° 8443 6357 4396 3022 2227
09-13 61° 85° 8494 6398 4427 3045 2245
09-14 62° 88° 8547 6441 4460 3070 2265
09-15 62° 88° 8600 6484 4493 3095 2285
09-16 57° 89° 8651 6525 4524 3118 2303
09-17 55° 85° 8699 6563 4552 3138 2318
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
09-18 55° 88° 8748 6602 4582 3160 2335
09-19 56° 89° 8799 6643 4612 3182 2352
09-20 65° 86° 8853 6687 4646 3208 2373
09-21 59° 90° 8906 6730 4679 3233 2393
09-22 65° 72° 8952 6766 4705 3251 2406
09-23 60° 66° 8993 6797 4726 3264 2414
09-24 62° 67° 9036 6830 4749 3279 2424
09-25 56° 75° 9079 6863 4773 3295 2435
09-26 51° 77° 9121 6895 4794 3308 2443
09-27 62° 72° 9166 6930 4820 3326 2456
09-28 62° 69° 9210 6964 4843 3341 2466
09-29 64° 74° 9257 7001 4870 3360 2480
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
09-30 60° 76° 9303 7037 4896 3378 2493

 

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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