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MSU Proxy/Primo Seedhead Timer (GDD 32)
through Mon, Apr. 15. 2024

 

GDD Total: 792 (Base 32) through Mon, Apr. 15, 2024

  

Schererville, IN

       

Forecast »

Done

651

Over

501

Target

220

Close

121

Under

0

 

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 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 49° 75° 1418 822 349 137 53
04-17 61° 71° 1463 857 373 153 64
04-18 49° 63° 1497 881 387 159 66
04-19 45° 57° 1526 900 396 160 66
04-20 40° 54° 1551 915 401 160 66
04-21 37° 54° 1574 928 404 160 66
04-22 36° 60° 1600 944 411 160 66
2023Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
02-15 36° 52° 22 12 2 0 0
02-16 29° 36° 33 13 2 0 0
02-17 19° 27° 33 13 2 0 0
02-18 21° 46° 45 14 2 0 0
02-19 38° 54° 69 28 6 0 0
02-20 28° 49° 86 35 6 0 0
02-21 27° 39° 97 36 6 0 0
02-22 32° 35° 109 38 6 0 0
02-23 27° 45° 122 42 6 0 0
02-24 19° 29° 124 42 6 0 0
02-25 26° 36° 134 42 6 0 0
02-26 27° 51° 150 48 6 0 0
2023Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
02-27 39° 58° 177 65 12 0 0
02-28 38° 51° 199 77 15 0 0
02-29 n/a n/a n/a n/a n/a n/a n/a
03-01 34° 59° 223 91 19 0 0
03-02 32° 42° 238 96 19 0 0
03-03 31° 39° 252 100 19 0 0
03-04 19° 40° 259 100 19 0 0
03-05 28° 50° 276 107 19 0 0
03-06 41° 55° 302 122 25 0 0
03-07 34° 43° 318 128 25 0 0
03-08 33° 47° 336 137 25 0 0
03-09 34° 42° 352 142 25 0 0
2023Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
03-10 32° 36° 364 145 25 0 0
03-11 33° 40° 378 149 25 0 0
03-12 31° 36° 390 150 25 0 0
03-13 29° 33° 399 150 25 0 0
03-14 22° 37° 406 150 25 0 0
03-15 21° 49° 419 153 25 0 0
03-16 39° 47° 440 164 26 0 0
03-17 27° 50° 457 171 26 0 0
03-18 13° 26° 457 171 26 0 0
03-19 16° 38° 462 171 26 0 0
03-20 26° 50° 478 177 26 0 0
03-21 33° 52° 499 187 27 0 0
2023Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
03-22 38° 49° 520 199 28 0 0
03-23 36° 49° 540 209 28 0 0
03-24 34° 46° 558 217 28 0 0
03-25 34° 42° 574 223 28 0 0
03-26 32° 50° 593 232 28 0 0
03-27 33° 45° 610 239 28 0 0
03-28 26° 50° 627 245 28 0 0
03-29 29° 42° 640 249 28 0 0
03-30 25° 56° 658 257 28 0 0
03-31 50° 66° 695 283 45 8 3
04-01 36° 53° 717 296 47 8 3
04-02 29° 55° 737 306 47 8 3
2023Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
04-03 41° 63° 767 326 57 10 3
04-04 46° 68° 802 351 72 17 5
04-05 40° 72° 836 374 86 23 6
04-06 32° 52° 856 384 86 23 6
04-07 33° 53° 877 395 87 23 6
04-08 35° 62° 903 412 93 23 6
04-09 40° 66° 934 433 104 26 6
04-10 43° 70° 969 458 119 33 8
04-11 48° 77° 1009 488 139 45 15
04-12 55° 81° 1055 524 165 63 28
04-13 53° 82° 1101 559 191 80 41
04-14 52° 81° 1145 594 215 97 52
2023Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
04-15 61° 80° 1194 633 244 118 68
04-16 37° 69° 1225 653 255 120 68
04-17 31° 38° 1237 656 255 120 68
04-18 32° 57° 1260 668 257 120 68
04-19 41° 75° 1295 694 273 128 71
04-20 60° 80° 1343 732 301 148 85
04-21 45° 63° 1375 754 313 152 85
04-22 38° 49° 1397 766 315 152 85
04-23 35° 43° 1414 773 315 152 85
04-24 31° 52° 1434 782 315 152 85
04-25 40° 48° 1455 794 316 152 85
04-26 30° 51° 1474 803 316 152 85
2023Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
04-27 31° 66° 1500 819 322 152 85
04-28 46° 58° 1530 838 332 154 85
04-29 38° 61° 1557 856 340 154 85
04-30 37° 47° 1578 866 340 154 85
05-01 39° 46° 1599 877 341 154 85
05-02 41° 53° 1623 892 346 154 85
05-03 40° 57° 1650 909 352 154 85
05-04 37° 71° 1681 930 364 158 85
05-05 50° 76° 1723 961 385 171 93
05-06 59° 77° 1769 998 411 189 107
05-07 65° 83° 1821 1040 443 213 126
05-08 53° 64° 1858 1066 460 222 129
2023Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
05-09 47° 70° 1894 1093 477 230 133
05-10 46° 79° 1935 1124 497 243 141
05-11 54° 83° 1982 1160 524 262 154
05-12 64° 79° 2031 1200 554 283 171
05-13 59° 73° 2075 1234 577 299 182
05-14 56° 68° 2115 1264 598 311 189
05-15 54° 70° 2155 1294 617 323 196
05-16 48° 79° 2197 1325 639 337 204
05-17 47° 66° 2231 1350 654 343 206
05-18 44° 75° 2268 1377 671 353 210
05-19 56° 72° 2311 1409 693 367 219
05-20 46° 67° 2345 1434 708 373 221
2023Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
05-21 48° 79° 2387 1466 729 387 230
05-22 53° 81° 2431 1500 754 404 241
05-23 57° 85° 2480 1539 783 424 257
05-24 55° 72° 2522 1571 804 438 266
05-25 48° 63° 2555 1594 818 443 266
05-26 42° 70° 2589 1618 832 449 267
05-27 44° 76° 2627 1646 850 459 272
05-28 52° 79° 2671 1680 873 475 283
05-29 54° 85° 2718 1717 901 494 297
05-30 61° 89° 2771 1760 934 519 317
05-31 67° 87° 2826 1805 968 546 339
06-01 66° 89° 2881 1850 1004 573 361
2023Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
06-02 65° 91° 2938 1896 1040 602 384
06-03 64° 88° 2992 1941 1074 628 406
06-04 62° 77° 3040 1979 1102 648 421
06-05 52° 83° 3085 2014 1128 665 433
06-06 60° 80° 3133 2052 1156 685 448
06-07 57° 75° 3177 2086 1180 701 459
06-08 50° 74° 3217 2116 1200 713 466
06-09 49° 78° 3259 2148 1221 727 475
06-10 56° 87° 3308 2187 1251 748 491
06-11 52° 70° 3347 2216 1270 759 497
06-12 51° 68° 3385 2243 1287 769 501
06-13 54° 64° 3422 2270 1304 778 505
2023Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
06-14 58° 72° 3465 2303 1327 793 515
06-15 55° 83° 3511 2340 1354 812 529
06-16 52° 66° 3548 2367 1371 820 533
06-17 49° 81° 3591 2400 1394 835 543
06-18 57° 85° 3640 2439 1423 856 559
06-19 62° 85° 3692 2481 1455 880 578
06-20 60° 85° 3743 2522 1485 903 596
06-21 62° 88° 3796 2565 1518 928 616
06-22 65° 83° 3848 2607 1550 952 635
06-23 67° 84° 3901 2650 1584 977 655
06-24 61° 89° 3954 2693 1617 1002 675
06-25 67° 85° 4008 2737 1651 1028 696
2023Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
06-26 66° 72° 4055 2774 1678 1047 710
06-27 63° 74° 4101 2810 1704 1065 723
06-28 52° 84° 4147 2846 1730 1083 736
06-29 68° 84° 4201 2890 1764 1109 757
06-30 66° 88° 4256 2935 1799 1136 779
07-01 69° 84° 4310 2979 1833 1163 800
07-02 67° 74° 4359 3017 1861 1183 815
07-03 62° 84° 4410 3059 1892 1206 834
07-04 66° 91° 4466 3105 1929 1234 857
07-05 70° 91° 4525 3153 1967 1265 882
07-06 67° 79° 4576 3194 1998 1288 900
07-07 59° 81° 4624 3233 2026 1308 916
2023Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
07-08 63° 71° 4669 3268 2051 1325 928
07-09 56° 82° 4716 3305 2079 1344 942
07-10 60° 83° 4765 3344 2108 1365 958
07-11 65° 87° 4820 3388 2142 1392 979
07-12 60° 80° 4868 3426 2170 1412 994
07-13 64° 76° 4915 3464 2198 1431 1009
07-14 66° 89° 4970 3509 2233 1458 1031
07-15 68° 81° 5023 3552 2266 1483 1051
07-16 64° 80° 5073 3592 2296 1505 1068
07-17 64° 78° 5122 3631 2324 1526 1084
07-18 55° 77° 5166 3665 2349 1542 1095
07-19 55° 82° 5213 3701 2375 1561 1108
2023Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
07-20 66° 86° 5267 3746 2409 1587 1130
07-21 65° 79° 5317 3786 2439 1609 1147
07-22 57° 84° 5365 3824 2468 1629 1162
07-23 64° 83° 5417 3866 2500 1653 1181
07-24 62° 87° 5470 3908 2532 1678 1200
07-25 62° 88° 5523 3952 2565 1703 1221
07-26 73° 89° 5582 4001 2604 1734 1247
07-27 70° 93° 5641 4050 2644 1766 1273
07-28 72° 92° 5701 4100 2684 1797 1300
07-29 66° 83° 5754 4143 2717 1822 1320
07-30 60° 81° 5803 4182 2745 1843 1336
07-31 58° 81° 5850 4219 2773 1862 1350
2023Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
08-01 60° 82° 5899 4258 2802 1883 1366
08-02 61° 82° 5949 4297 2831 1905 1382
08-03 60° 87° 6000 4339 2863 1929 1401
08-04 65° 86° 6054 4383 2897 1954 1422
08-05 65° 75° 6102 4421 2925 1974 1437
08-06 63° 71° 6147 4456 2950 1991 1449
08-07 66° 76° 6196 4495 2978 2012 1465
08-08 58° 83° 6244 4533 3007 2033 1480
08-09 62° 79° 6293 4571 3035 2053 1495
08-10 63° 82° 6343 4612 3066 2075 1513
08-11 67° 82° 6396 4655 3098 2100 1533
08-12 68° 84° 6450 4699 3132 2126 1554
2023Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
08-13 63° 81° 6500 4739 3162 2148 1571
08-14 65° 74° 6547 4776 3190 2167 1585
08-15 62° 75° 6594 4813 3216 2186 1599
08-16 54° 79° 6639 4847 3241 2203 1610
08-17 62° 79° 6687 4886 3270 2223 1626
08-18 55° 76° 6731 4920 3293 2239 1637
08-19 56° 80° 6777 4955 3319 2257 1649
08-20 68° 90° 6834 5003 3356 2286 1674
08-21 69° 83° 6888 5047 3390 2312 1695
08-22 67° 86° 6942 5091 3425 2339 1716
08-23 72° 95° 7004 5143 3466 2372 1745
08-24 78° 96° 7069 5198 3511 2409 1777
2023Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
08-25 71° 81° 7123 5242 3546 2435 1798
08-26 65° 75° 7172 5281 3574 2456 1814
08-27 61° 75° 7218 5317 3600 2474 1827
08-28 53° 78° 7262 5350 3624 2490 1837
08-29 57° 81° 7308 5387 3651 2508 1851
08-30 56° 69° 7349 5418 3671 2521 1859
08-31 47° 77° 7389 5448 3692 2533 1866
09-01 52° 82° 7434 5483 3717 2550 1878
09-02 56° 85° 7483 5521 3745 2571 1893
09-03 65° 90° 7538 5567 3781 2598 1916
09-04 67° 90° 7595 5613 3817 2627 1939
09-05 72° 87° 7652 5661 3855 2656 1964
2023Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
09-06 67° 80° 7704 5703 3887 2680 1983
09-07 66° 71° 7750 5739 3913 2699 1996
09-08 60° 66° 7791 5770 3934 2711 2004
09-09 54° 72° 7833 5801 3955 2725 2012
09-10 49° 78° 7874 5833 3977 2738 2021
09-11 61° 66° 7916 5864 3998 2752 2029
09-12 55° 69° 7955 5894 4018 2764 2036
09-13 49° 69° 7993 5921 4035 2773 2040
09-14 46° 71° 8029 5948 4052 2781 2044
09-15 47° 76° 8069 5978 4072 2793 2051
09-16 52° 73° 8110 6008 4092 2806 2058
09-17 57° 66° 8149 6038 4111 2817 2065
2023Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
09-18 50° 69° 8186 6065 4129 2826 2069
09-19 51° 66° 8223 6092 4145 2835 2073
09-20 56° 80° 8269 6128 4172 2853 2086
09-21 61° 76° 8316 6165 4198 2872 2100
09-22 61° 80° 8364 6203 4227 2892 2115
09-23 58° 80° 8411 6240 4253 2911 2129
09-24 52° 77° 8453 6272 4275 2925 2138
09-25 59° 76° 8499 6307 4301 2943 2150
09-26 60° 75° 8544 6343 4327 2960 2163
09-27 61° 70° 8588 6377 4350 2976 2174
09-28 60° 69° 8630 6409 4373 2991 2183
09-29 55° 76° 8674 6442 4396 3006 2193
2023Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
09-30 54° 84° 8721 6480 4424 3025 2208

 

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!