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MSU Annual Bluegrass Seedhead Embark Timer (GDD 22)
through Mon, Dec. 8. 2025

 
  

Kankakee, IL

        

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° 35° 9 0 0 0 0
02-16 14° 31° 9 0 0 0 0
02-17 4° 15° 9 0 0 0 0
02-18 -2° 13° 9 0 0 0 0
02-19 5° 19° 9 0 0 0 0
02-20 3° 22° 9 0 0 0 0
02-21 7° 31° 9 0 0 0 0
02-22 12° 36° 11 0 0 0 0
02-23 21° 50° 24 3 0 0 0
02-24 34° 57° 48 17 4 0 0
02-25 32° 55° 70 29 6 0 0
02-26 32° 52° 90 39 6 0 0
2025Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
02-27 33° 51° 109 48 6 0 0
02-28 32° 60° 133 62 10 0 0
02-29 n/a n/a n/a n/a n/a n/a n/a
03-01 21° 36° 140 62 10 0 0
03-02 15° 38° 144 62 10 0 0
03-03 28° 47° 159 68 10 0 0
03-04 40° 48° 181 80 11 0 0
03-05 31° 50° 200 88 11 0 0
03-06 29° 40° 212 91 11 0 0
03-07 31° 37° 225 93 11 0 0
03-08 29° 48° 241 99 11 0 0
03-09 31° 58° 263 112 14 0 0
2025Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
03-10 34° 68° 292 130 22 1 0
03-11 35° 56° 315 144 26 1 0
03-12 33° 63° 341 159 32 1 0
03-13 32° 69° 369 178 40 1 0
03-14 45° 79° 409 208 60 13 7
03-15 44° 67° 443 231 74 19 8
03-16 30° 41° 457 235 74 19 8
03-17 25° 51° 473 241 74 19 8
03-18 41° 73° 508 266 89 26 10
03-19 43° 67° 541 289 102 31 10
03-20 32° 41° 556 294 102 31 10
03-21 29° 58° 578 306 104 31 10
2025Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
03-22 34° 47° 597 315 104 31 10
03-23 33° 48° 615 324 104 31 10
03-24 34° 50° 635 334 104 31 10
03-25 33° 50° 655 343 104 31 10
03-26 30° 54° 675 354 104 31 10
03-27 40° 53° 700 368 109 31 10
03-28 46° 80° 741 399 130 44 18
03-29 59° 65° 780 429 150 56 25
03-30 46° 75° 819 458 168 67 31
03-31 35° 46° 838 466 168 67 31
04-01 29° 47° 854 473 168 67 31
04-02 41° 68° 887 495 181 71 31
2025Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
04-03 43° 63° 918 516 192 74 31
04-04 38° 50° 940 528 194 74 31
04-05 42° 50° 964 542 198 74 31
04-06 37° 47° 984 552 198 74 31
04-07 30° 46° 999 558 198 74 31
04-08 25° 43° 1012 560 198 74 31
04-09 32° 47° 1029 567 198 74 31
04-10 33° 52° 1049 578 199 74 31
04-11 36° 52° 1072 590 201 74 31
04-12 32° 60° 1095 604 205 74 31
04-13 46° 64° 1129 627 218 80 31
04-14 51° 63° 1164 652 233 87 33
2025Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
04-15 42° 56° 1191 669 240 87 33
04-16 32° 55° 1212 681 241 87 33
04-17 39° 63° 1242 700 251 88 33
04-18 53° 77° 1285 733 274 103 43
04-19 47° 68° 1320 759 290 111 46
04-20 47° 66° 1355 784 304 117 48
04-21 47° 62° 1388 806 317 122 48
04-22 40° 74° 1423 831 332 129 50
04-23 51° 78° 1466 864 355 144 59
04-24 50° 81° 1509 897 378 159 69
04-25 48° 63° 1543 921 392 165 70
04-26 43° 56° 1570 939 399 165 70
2025Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
04-27 34° 69° 1600 958 409 166 70
04-28 49° 83° 1644 992 433 183 82
04-29 54° 75° 1686 1025 456 197 91
04-30 45° 62° 1718 1046 467 201 91
05-01 55° 68° 1757 1076 487 212 98
05-02 48° 65° 1792 1100 501 219 99
05-03 44° 57° 1820 1119 510 219 99
05-04 44° 52° 1847 1135 516 219 99
05-05 47° 63° 1880 1158 529 225 100
05-06 44° 74° 1917 1185 546 234 104
05-07 49° 78° 1958 1217 568 247 112
05-08 46° 66° 1992 1240 581 253 113
2025Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
05-09 38° 68° 2023 1261 592 256 113
05-10 41° 79° 2061 1289 610 266 118
05-11 40° 79° 2098 1317 628 275 122
05-12 51° 80° 2142 1350 651 290 132
05-13 58° 79° 2188 1387 677 309 146
05-14 62° 83° 2238 1427 708 331 163
05-15 64° 93° 2295 1473 744 360 187
05-16 60° 87° 2346 1515 776 383 205
05-17 55° 70° 2387 1545 796 396 213
05-18 49° 71° 2425 1573 814 406 218
05-19 47° 65° 2459 1597 828 412 219
05-20 50° 60° 2492 1620 841 417 219
2025Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
05-21 50° 57° 2523 1642 852 420 219
05-22 47° 58° 2553 1662 863 422 219
05-23 42° 66° 2586 1684 875 427 219
05-24 45° 69° 2621 1709 890 434 221
05-25 54° 63° 2657 1736 906 442 224
05-26 43° 72° 2693 1761 922 450 227
05-27 53° 72° 2734 1792 943 462 234
05-28 54° 64° 2770 1819 960 471 238
05-29 47° 68° 2806 1844 975 478 241
05-30 52° 75° 2847 1876 996 492 249
05-31 50° 69° 2885 1903 1014 501 253
06-01 41° 73° 2920 1928 1029 509 256
2025Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
06-02 47° 84° 2964 1962 1053 524 266
06-03 63° 88° 3017 2006 1086 550 287
06-04 58° 78° 3063 2041 1112 568 300
06-05 56° 69° 3104 2072 1133 580 307
06-06 59° 75° 3149 2107 1158 598 320
06-07 54° 76° 3192 2141 1181 613 330
06-08 59° 81° 3241 2179 1210 633 345
06-09 53° 76° 3283 2212 1233 648 355
06-10 52° 78° 3326 2245 1256 663 365
06-11 59° 88° 3378 2286 1287 687 384
06-12 63° 84° 3430 2328 1319 710 403
06-13 67° 74° 3478 2367 1348 731 418
2025Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
06-14 63° 78° 3527 2406 1376 752 434
06-15 60° 82° 3576 2444 1405 773 450
06-16 63° 84° 3627 2486 1437 796 468
06-17 68° 88° 3684 2532 1473 824 491
06-18 69° 83° 3737 2576 1506 850 512
06-19 66° 82° 3789 2617 1538 874 531
06-20 65° 82° 3840 2659 1569 897 549
06-21 73° 91° 3900 2709 1609 929 576
06-22 75° 91° 3962 2760 1651 962 604
06-23 74° 92° 4022 2811 1692 995 632
06-24 74° 92° 4084 2862 1733 1028 660
06-25 71° 90° 4142 2911 1771 1059 686
2025Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
06-26 72° 92° 4202 2961 1812 1091 713
06-27 73° 88° 4261 3010 1850 1122 739
06-28 65° 87° 4316 3054 1885 1148 760
06-29 70° 90° 4373 3102 1923 1178 785
06-30 72° 85° 4430 3148 1959 1207 809
07-01 67° 84° 4483 3192 1993 1232 829
07-02 63° 86° 4536 3235 2025 1257 849
07-03 65° 89° 4591 3280 2060 1284 871
07-04 67° 90° 4648 3326 2097 1313 895
07-05 69° 91° 4706 3374 2135 1343 920
07-06 71° 88° 4764 3422 2173 1372 944
07-07 66° 82° 4816 3464 2205 1397 964
2025Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
07-08 62° 86° 4868 3506 2237 1420 983
07-09 66° 85° 4922 3550 2271 1446 1003
07-10 63° 87° 4975 3593 2304 1472 1024
07-11 71° 90° 5033 3642 2342 1502 1049
07-12 69° 81° 5086 3685 2376 1527 1069
07-13 66° 81° 5138 3726 2407 1550 1088
07-14 63° 84° 5189 3768 2439 1574 1106
07-15 66° 89° 5245 3813 2474 1602 1129
07-16 71° 90° 5304 3862 2513 1633 1155
07-17 65° 80° 5354 3903 2544 1655 1172
07-18 62° 81° 5404 3942 2573 1677 1189
07-19 68° 80° 5456 3985 2605 1701 1208
2025Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
07-20 68° 78° 5507 4026 2637 1724 1226
07-21 65° 81° 5558 4067 2668 1747 1244
07-22 65° 84° 5611 4109 2700 1772 1264
07-23 67° 90° 5667 4156 2737 1800 1287
07-24 74° 92° 5729 4207 2778 1833 1315
07-25 71° 81° 5782 4251 2812 1859 1336
07-26 70° 84° 5838 4296 2847 1886 1358
07-27 73° 88° 5896 4344 2885 1917 1384
07-28 75° 90° 5956 4394 2925 1949 1411
07-29 68° 89° 6012 4441 2962 1977 1434
07-30 69° 82° 6066 4484 2995 2003 1455
07-31 64° 76° 6114 4522 3023 2023 1470
2025Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
08-01 57° 77° 6159 4557 3048 2040 1482
08-02 55° 76° 6202 4591 3072 2055 1492
08-03 55° 77° 6246 4625 3095 2071 1503
08-04 59° 80° 6294 4662 3123 2091 1518
08-05 60° 81° 6343 4701 3152 2111 1534
08-06 61° 84° 6394 4742 3183 2134 1551
08-07 68° 87° 6449 4787 3218 2162 1574
08-08 69° 88° 6506 4834 3255 2191 1598
08-09 69° 89° 6563 4881 3292 2219 1621
08-10 70° 89° 6620 4928 3329 2249 1646
08-11 71° 85° 6676 4975 3365 2277 1669
08-12 70° 89° 6734 5022 3403 2306 1693
2025Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
08-13 66° 84° 6787 5065 3436 2332 1714
08-14 61° 83° 6837 5105 3466 2354 1731
08-15 65° 89° 6892 5150 3501 2380 1753
08-16 72° 92° 6951 5200 3541 2412 1779
08-17 69° 85° 7006 5245 3576 2439 1801
08-18 70° 84° 7061 5290 3610 2466 1823
08-19 71° 81° 7115 5333 3644 2492 1844
08-20 66° 76° 7164 5372 3673 2512 1860
08-21 60° 76° 7210 5408 3699 2531 1873
08-22 60° 78° 7257 5445 3726 2550 1887
08-23 63° 83° 7308 5486 3757 2572 1904
08-24 54° 72° 7349 5517 3778 2585 1912
2025Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
08-25 50° 68° 7386 5544 3795 2595 1917
08-26 48° 71° 7424 5572 3813 2605 1922
08-27 47° 74° 7463 5601 3832 2615 1927
08-28 59° 77° 7509 5637 3858 2634 1941
08-29 51° 73° 7548 5667 3878 2645 1947
08-30 56° 74° 7591 5700 3901 2660 1957
08-31 53° 75° 7633 5732 3923 2674 1966
09-01 52° 77° 7676 5764 3945 2689 1976
09-02 55° 80° 7721 5799 3970 2706 1988
09-03 54° 76° 7764 5833 3993 2721 1998
09-04 46° 66° 7798 5857 4007 2727 1999
09-05 52° 67° 7836 5884 4025 2737 2004
2025Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
09-06 43° 66° 7869 5907 4038 2741 2004
09-07 42° 67° 7901 5929 4050 2745 2004
09-08 41° 70° 7935 5953 4064 2751 2005
09-09 43° 75° 7972 5980 4081 2760 2009
09-10 57° 81° 8018 6017 4108 2779 2022
09-11 59° 82° 8067 6055 4136 2800 2038
09-12 54° 85° 8114 6093 4164 2819 2052
09-13 60° 77° 8161 6129 4190 2837 2066
09-14 61° 85° 8212 6170 4221 2860 2084
09-15 58° 86° 8262 6210 4251 2882 2101
09-16 56° 83° 8310 6248 4279 2902 2116
09-17 53° 84° 8356 6284 4305 2921 2129
2025Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
09-18 55° 87° 8405 6323 4334 2942 2145
09-19 58° 87° 8456 6364 4365 2964 2163
09-20 64° 77° 8504 6402 4393 2985 2178
09-21 62° 82° 8554 6442 4423 3007 2195
09-22 63° 80° 8604 6482 4453 3028 2212
09-23 62° 79° 8652 6521 4482 3049 2227
09-24 61° 73° 8698 6556 4507 3066 2240
09-25 55° 75° 8741 6589 4530 3082 2250
09-26 50° 81° 8784 6622 4553 3097 2260
09-27 55° 86° 8833 6661 4582 3117 2276
09-28 56° 86° 8882 6700 4611 3138 2292
09-29 57° 88° 8932 6740 4641 3161 2309
2025Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
09-30 57° 84° 8981 6779 4670 3181 2325
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
02-15 32° 45° 17 7 0 0 0
02-16 23° 32° 22 7 0 0 0
02-17 11° 25° 22 7 0 0 0
02-18 18° 41° 29 7 0 0 0
02-19 22° 47° 42 9 0 0 0
02-20 27° 56° 62 19 0 0 0
02-21 39° 64° 91 38 9 1 0
02-22 41° 55° 117 54 16 1 0
02-23 32° 51° 137 64 16 1 0
02-24 21° 34° 142 64 16 1 0
02-25 30° 61° 166 78 19 1 0
02-26 33° 72° 197 98 30 4 0
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
02-27 53° 71° 237 128 50 16 7
02-28 24° 54° 253 135 50 16 7
02-29 17° 45° 263 135 50 16 7
03-01 27° 46° 277 139 50 16 7
03-02 32° 59° 301 153 54 16 7
03-03 40° 72° 335 177 68 22 8
03-04 51° 72° 374 206 87 33 14
03-05 40° 63° 403 226 97 35 14
03-06 38° 52° 427 239 100 35 14
03-07 36° 46° 446 249 100 35 14
03-08 43° 54° 472 265 106 35 14
03-09 34° 44° 489 272 106 35 14
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
03-10 30° 45° 505 278 106 35 14
03-11 30° 65° 531 293 112 35 14
03-12 40° 69° 563 316 124 39 14
03-13 44° 70° 598 340 139 46 16
03-14 45° 69° 633 365 154 53 18
03-15 39° 54° 657 380 158 53 18
03-16 37° 61° 685 397 166 53 18
03-17 33° 42° 700 402 166 53 18
03-18 27° 34° 708 402 166 53 18
03-19 27° 59° 729 413 167 53 18
03-20 29° 47° 745 419 167 53 18
03-21 25° 42° 757 421 167 53 18
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
03-22 32° 52° 777 431 167 53 18
03-23 31° 39° 790 434 167 53 18
03-24 30° 52° 809 443 167 53 18
03-25 44° 65° 841 465 179 57 18
03-26 36° 55° 865 479 182 57 18
03-27 30° 44° 880 484 182 57 18
03-28 29° 55° 900 494 183 57 18
03-29 35° 61° 926 510 189 57 18
03-30 43° 65° 958 532 200 61 18
03-31 39° 59° 985 549 208 61 18
04-01 44° 52° 1011 565 214 61 18
04-02 35° 60° 1037 581 219 61 18
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
04-03 35° 37° 1051 585 219 61 18
04-04 36° 41° 1067 591 219 61 18
04-05 37° 46° 1087 601 219 61 18
04-06 31° 56° 1108 612 221 61 18
04-07 39° 54° 1133 627 225 61 18
04-08 43° 74° 1169 653 241 69 21
04-09 48° 65° 1203 677 256 76 23
04-10 42° 65° 1235 699 267 79 23
04-11 49° 57° 1266 720 279 83 23
04-12 47° 63° 1299 743 292 88 23
04-13 40° 72° 1333 767 306 94 24
04-14 59° 83° 1382 806 335 115 40
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
04-15 49° 70° 1420 834 352 124 44
04-16 52° 79° 1463 867 376 140 55
04-17 62° 66° 1505 899 398 154 64
04-18 45° 65° 1538 922 411 159 64
04-19 42° 55° 1564 938 417 159 64
04-20 34° 46° 1582 946 417 159 64
04-21 32° 46° 1600 954 417 159 64
04-22 36° 66° 1629 973 426 159 64
04-23 49° 56° 1659 993 437 162 64
04-24 35° 52° 1681 1005 438 162 64
04-25 31° 58° 1703 1017 441 162 64
04-26 42° 57° 1731 1035 448 162 64
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
04-27 58° 75° 1776 1070 473 179 76
04-28 62° 73° 1821 1105 499 196 88
04-29 59° 68° 1862 1136 520 210 97
04-30 47° 75° 1901 1165 539 220 102
05-01 59° 74° 1946 1200 564 237 114
05-02 52° 81° 1991 1235 588 254 126
05-03 53° 65° 2028 1262 605 263 130
05-04 48° 81° 2071 1295 628 278 140
05-05 51° 66° 2107 1321 645 286 143
05-06 47° 76° 2146 1350 664 297 149
05-07 56° 75° 2190 1384 687 313 160
05-08 52° 80° 2234 1418 711 329 171
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
05-09 52° 67° 2271 1445 729 338 175
05-10 45° 67° 2305 1469 743 345 177
05-11 49° 70° 2343 1497 761 354 181
05-12 47° 82° 2386 1530 783 369 191
05-13 59° 78° 2433 1567 810 388 205
05-14 54° 66° 2471 1595 828 398 210
05-15 54° 69° 2510 1624 848 409 216
05-16 49° 71° 2549 1653 866 420 222
05-17 58° 79° 2596 1690 893 439 236
05-18 60° 83° 2645 1729 923 460 252
05-19 64° 82° 2696 1770 954 484 271
05-20 61° 87° 2748 1812 986 507 289
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
05-21 64° 89° 2803 1857 1021 534 311
05-22 62° 78° 2851 1895 1049 554 326
05-23 53° 81° 2896 1930 1074 571 338
05-24 61° 77° 2943 1967 1101 590 352
05-25 58° 78° 2989 2003 1127 608 365
05-26 56° 77° 3034 2038 1151 625 377
05-27 58° 74° 3078 2072 1176 641 388
05-28 54° 74° 3120 2104 1198 655 397
05-29 55° 71° 3161 2135 1218 668 405
05-30 46° 75° 3199 2163 1237 678 410
05-31 50° 79° 3242 2196 1259 693 420
06-01 60° 69° 3284 2228 1282 707 429
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
06-02 59° 78° 3331 2265 1308 726 443
06-03 58° 88° 3381 2305 1339 748 460
06-04 66° 85° 3435 2349 1373 774 481
06-05 68° 78° 3486 2390 1403 797 499
06-06 63° 80° 3535 2429 1433 818 515
06-07 57° 80° 3582 2466 1460 837 529
06-08 58° 80° 3629 2503 1486 856 543
06-09 52° 81° 3673 2537 1511 872 554
06-10 55° 70° 3714 2568 1531 885 562
06-11 46° 78° 3754 2598 1552 897 569
06-12 62° 91° 3809 2643 1587 924 591
06-13 71° 90° 3867 2691 1625 954 616
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
06-14 65° 87° 3921 2735 1659 980 637
06-15 58° 84° 3970 2774 1688 1001 653
06-16 63° 91° 4026 2820 1723 1029 676
06-17 75° 93° 4087 2871 1765 1062 704
06-18 74° 89° 4147 2921 1804 1094 731
06-19 74° 90° 4207 2971 1844 1126 758
06-20 71° 91° 4266 3020 1883 1157 784
06-21 65° 90° 4321 3065 1919 1184 806
06-22 73° 89° 4380 3114 1958 1215 832
06-23 69° 82° 4434 3158 1991 1241 853
06-24 62° 85° 4485 3199 2023 1264 871
06-25 71° 80° 4539 3243 2056 1290 892
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
06-26 69° 83° 4593 3287 2090 1316 913
06-27 61° 76° 4639 3323 2117 1334 926
06-28 60° 79° 4686 3360 2144 1354 941
06-29 73° 87° 4745 3409 2182 1384 966
06-30 56° 77° 4788 3442 2205 1399 976
07-01 48° 75° 4827 3471 2225 1410 982
07-02 58° 83° 4876 3510 2254 1431 998
07-03 72° 86° 4933 3557 2290 1460 1022
07-04 66° 81° 4985 3599 2322 1484 1041
07-05 63° 82° 5035 3639 2353 1506 1058
07-06 61° 80° 5084 3678 2381 1527 1074
07-07 60° 87° 5135 3719 2413 1550 1092
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
07-08 67° 84° 5189 3763 2447 1576 1113
07-09 68° 75° 5239 3803 2476 1598 1130
07-10 65° 82° 5290 3844 2508 1621 1148
07-11 65° 82° 5341 3885 2539 1644 1166
07-12 63° 84° 5393 3927 2570 1668 1185
07-13 65° 88° 5448 3972 2605 1695 1207
07-14 68° 87° 5503 4017 2641 1723 1230
07-15 66° 89° 5559 4063 2676 1750 1252
07-16 67° 80° 5611 4105 2708 1774 1271
07-17 67° 81° 5663 4147 2740 1798 1290
07-18 60° 74° 5708 4182 2765 1815 1302
07-19 52° 77° 5750 4214 2788 1829 1311
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
07-20 56° 78° 5795 4249 2813 1846 1323
07-21 61° 80° 5844 4288 2841 1867 1339
07-22 61° 82° 5894 4328 2871 1889 1356
07-23 61° 84° 5944 4368 2902 1911 1373
07-24 64° 77° 5993 4407 2930 1932 1389
07-25 63° 79° 6042 4446 2959 1953 1405
07-26 53° 79° 6086 4480 2983 1969 1416
07-27 58° 81° 6133 4517 3011 1988 1430
07-28 66° 80° 6185 4559 3042 2012 1449
07-29 70° 83° 6239 4603 3077 2038 1470
07-30 67° 87° 6294 4648 3112 2065 1492
07-31 67° 85° 6348 4692 3146 2091 1513
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
08-01 69° 83° 6402 4736 3180 2117 1534
08-02 68° 81° 6455 4779 3212 2142 1554
08-03 66° 88° 6510 4824 3247 2169 1576
08-04 67° 87° 6565 4869 3283 2196 1598
08-05 70° 89° 6623 4917 3321 2226 1623
08-06 69° 84° 6678 4962 3355 2253 1645
08-07 64° 78° 6726 5000 3384 2274 1661
08-08 58° 81° 6774 5038 3411 2293 1675
08-09 59° 72° 6817 5071 3435 2308 1685
08-10 52° 74° 6858 5102 3455 2321 1693
08-11 51° 76° 6900 5134 3477 2335 1702
08-12 53° 78° 6943 5167 3500 2350 1712
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
08-13 56° 82° 6990 5204 3528 2369 1726
08-14 58° 83° 7039 5243 3556 2390 1742
08-15 66° 74° 7087 5281 3585 2410 1757
08-16 67° 85° 7141 5325 3619 2436 1778
08-17 66° 76° 7190 5364 3648 2457 1794
08-18 64° 77° 7239 5403 3676 2478 1810
08-19 60° 76° 7285 5439 3702 2496 1823
08-20 54° 72° 7326 5470 3724 2509 1831
08-21 49° 73° 7365 5499 3743 2520 1837
08-22 49° 76° 7405 5529 3763 2533 1845
08-23 51° 80° 7449 5563 3786 2548 1855
08-24 57° 89° 7500 5604 3818 2571 1873
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
08-25 66° 89° 7556 5650 3853 2599 1896
08-26 71° 91° 7615 5699 3892 2630 1922
08-27 70° 94° 7675 5749 3932 2662 1949
08-28 69° 82° 7728 5792 3966 2687 1969
08-29 67° 87° 7783 5837 4001 2714 1991
08-30 70° 89° 7841 5885 4038 2744 2016
08-31 64° 81° 7891 5925 4069 2766 2033
09-01 59° 77° 7938 5962 4095 2785 2047
09-02 51° 74° 7978 5992 4116 2797 2054
09-03 50° 74° 8018 6022 4136 2809 2061
09-04 48° 81° 8061 6055 4158 2824 2071
09-05 60° 86° 8112 6096 4189 2847 2089
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
09-06 57° 73° 8154 6128 4212 2861 2098
09-07 48° 66° 8189 6153 4227 2868 2100
09-08 42° 70° 8223 6177 4241 2874 2101
09-09 47° 78° 8264 6208 4261 2887 2109
09-10 46° 80° 8305 6239 4282 2900 2117
09-11 50° 85° 8351 6275 4308 2918 2130
09-12 54° 87° 8399 6313 4337 2939 2146
09-13 60° 83° 8449 6353 4367 2960 2162
09-14 61° 88° 8502 6396 4399 2985 2182
09-15 60° 87° 8553 6437 4431 3008 2200
09-16 55° 88° 8603 6477 4461 3030 2217
09-17 53° 86° 8651 6515 4488 3050 2232
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
09-18 54° 87° 8699 6553 4517 3070 2247
09-19 54° 89° 8749 6593 4546 3092 2264
09-20 62° 88° 8801 6635 4579 3116 2283
09-21 57° 89° 8852 6676 4610 3139 2301
09-22 64° 73° 8899 6713 4636 3158 2315
09-23 59° 68° 8940 6744 4658 3171 2323
09-24 62° 67° 8983 6777 4680 3186 2333
09-25 55° 75° 9026 6810 4704 3201 2343
09-26 51° 79° 9069 6843 4727 3216 2353
09-27 62° 73° 9115 6879 4752 3234 2366
09-28 61° 72° 9159 6913 4776 3250 2377
09-29 65° 78° 9208 6952 4806 3271 2393
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
09-30 60° 77° 9255 6989 4832 3290 2407

 

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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