“Flashback” to 2023

Please note you are viewing last year's map and info. Click here to return to 2024

Welcome!

It appears to be your first time visiting GDDTracker
Please enter your zip code for a customized experience. Also, be sure and watch our video introduction video.

   
       

Crabgrass Germination Prediction (GDD 50)
through Tue, Oct. 24. 2023

 
  

East Lansing, MI

        

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 29° 37° 11 1 0 0 0
02-16 24° 29° 16 1 0 0 0
02-17 19° 24° 16 1 0 0 0
02-18 19° 35° 20 1 0 0 0
02-19 15° 42° 27 1 0 0 0
02-20 24° 51° 42 6 0 0 0
02-21 36° 61° 69 23 7 0 0
02-22 35° 53° 90 34 8 0 0
02-23 24° 47° 104 38 8 0 0
02-24 15° 31° 105 38 8 0 0
02-25 26° 51° 122 44 8 0 0
02-26 31° 58° 144 57 11 0 0
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
02-27 48° 73° 183 86 30 11 6
02-28 21° 59° 201 94 30 11 6
02-29 18° 35° 206 94 30 11 6
03-01 29° 47° 222 100 30 11 6
03-02 39° 54° 246 114 34 11 6
03-03 38° 64° 275 133 42 11 6
03-04 47° 69° 310 159 58 19 9
03-05 40° 61° 339 177 67 20 9
03-06 34° 46° 357 185 67 20 9
03-07 32° 49° 376 194 67 20 9
03-08 37° 52° 398 206 70 20 9
03-09 33° 53° 419 217 71 20 9
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
03-10 28° 40° 431 219 71 20 9
03-11 27° 58° 452 230 71 20 9
03-12 43° 69° 486 254 86 26 10
03-13 46° 69° 522 280 101 34 12
03-14 42° 56° 549 297 108 34 12
03-15 36° 54° 572 310 111 34 12
03-16 32° 56° 594 322 114 34 12
03-17 30° 41° 607 325 114 34 12
03-18 26° 34° 615 325 114 34 12
03-19 28° 44° 629 329 114 34 12
03-20 22° 35° 636 329 114 34 12
03-21 17° 36° 640 329 114 34 12
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
03-22 26° 30° 646 329 114 34 12
03-23 23° 33° 652 329 114 34 12
03-24 20° 39° 660 329 114 34 12
03-25 31° 65° 686 345 120 34 12
03-26 43° 60° 715 364 129 35 12
03-27 29° 42° 729 368 129 35 12
03-28 29° 45° 744 373 129 35 12
03-29 24° 52° 760 379 129 35 12
03-30 34° 44° 777 386 129 35 12
03-31 37° 45° 796 395 129 35 12
04-01 37° 55° 820 410 133 35 12
04-02 39° 48° 842 421 135 35 12
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
04-03 36° 46° 861 430 135 35 12
04-04 34° 44° 878 437 135 35 12
04-05 33° 48° 896 445 135 35 12
04-06 32° 56° 918 458 137 35 12
04-07 32° 58° 941 470 140 35 12
04-08 46° 73° 979 498 157 45 17
04-09 50° 71° 1017 526 176 55 22
04-10 36° 66° 1046 546 185 56 22
04-11 47° 56° 1076 565 194 58 22
04-12 44° 52° 1102 581 200 58 22
04-13 40° 60° 1130 599 208 58 22
04-14 48° 77° 1170 629 229 70 30
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
04-15 44° 66° 1203 652 241 75 30
04-16 46° 67° 1237 677 256 81 31
04-17 53° 67° 1275 705 274 91 36
04-18 50° 60° 1308 728 287 96 36
04-19 45° 53° 1335 744 293 96 36
04-20 36° 45° 1353 753 293 96 36
04-21 35° 46° 1372 761 293 96 36
04-22 33° 64° 1398 778 300 96 36
04-23 50° 59° 1431 800 312 101 36
04-24 35° 49° 1451 810 312 101 36
04-25 28° 54° 1470 819 312 101 36
04-26 34° 63° 1496 836 319 101 36
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
04-27 54° 80° 1542 871 344 118 48
04-28 62° 75° 1588 907 371 136 62
04-29 58° 73° 1631 941 394 152 72
04-30 50° 66° 1668 967 410 160 75
05-01 48° 77° 1708 998 431 173 83
05-02 47° 74° 1747 1026 449 183 89
05-03 58° 69° 1789 1058 471 197 97
05-04 58° 72° 1831 1091 494 212 107
05-05 56° 67° 1871 1120 514 223 114
05-06 51° 69° 1909 1148 532 233 119
05-07 47° 68° 1945 1174 547 241 122
05-08 52° 75° 1986 1205 569 254 130
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
05-09 51° 57° 2018 1228 581 259 130
05-10 42° 64° 2049 1249 592 262 130
05-11 49° 58° 2080 1270 603 265 130
05-12 40° 72° 2114 1294 617 271 131
05-13 59° 81° 2162 1331 645 290 146
05-14 55° 65° 2200 1360 663 301 151
05-15 49° 70° 2238 1387 680 310 155
05-16 44° 76° 2276 1415 699 320 161
05-17 59° 78° 2323 1452 725 339 174
05-18 55° 83° 2370 1489 752 358 188
05-19 63° 86° 2422 1532 785 383 208
05-20 57° 83° 2470 1569 812 402 223
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
05-21 60° 85° 2521 1610 843 425 240
05-22 62° 81° 2570 1649 873 446 257
05-23 54° 77° 2614 1683 896 462 267
05-24 48° 81° 2656 1716 919 477 277
05-25 58° 74° 2700 1750 943 493 288
05-26 51° 77° 2742 1782 965 507 297
05-27 58° 63° 2780 1810 983 517 302
05-28 52° 68° 2819 1838 1001 527 307
05-29 54° 67° 2857 1866 1019 537 313
05-30 45° 70° 2893 1892 1035 545 315
05-31 45° 76° 2931 1921 1054 556 321
06-01 53° 77° 2974 1953 1077 570 331
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
06-02 63° 74° 3021 1990 1103 589 344
06-03 52° 80° 3065 2024 1127 605 355
06-04 63° 84° 3116 2065 1159 628 374
06-05 62° 77° 3164 2103 1186 648 388
06-06 59° 76° 3209 2138 1212 665 401
06-07 56° 69° 3249 2169 1232 678 408
06-08 50° 74° 3289 2198 1252 689 415
06-09 54° 74° 3331 2230 1273 703 424
06-10 50° 69° 3369 2258 1291 713 428
06-11 44° 73° 3405 2285 1308 722 432
06-12 59° 84° 3455 2324 1337 743 449
06-13 63° 87° 3508 2367 1370 768 468
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
06-14 62° 79° 3557 2406 1399 789 484
06-15 53° 78° 3600 2440 1423 805 495
06-16 60° 87° 3652 2481 1454 828 513
06-17 66° 90° 3708 2527 1490 856 537
06-18 74° 86° 3766 2575 1528 886 562
06-19 74° 90° 3826 2625 1568 918 588
06-20 72° 86° 3883 2672 1605 947 613
06-21 68° 87° 3939 2718 1641 975 635
06-22 72° 86° 3995 2765 1678 1004 659
06-23 66° 80° 4047 2806 1709 1027 677
06-24 60° 78° 4094 2843 1736 1046 692
06-25 67° 83° 4147 2886 1769 1071 711
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
06-26 66° 80° 4198 2927 1801 1094 730
06-27 55° 71° 4239 2958 1821 1107 738
06-28 59° 70° 4281 2991 1844 1122 747
06-29 67° 84° 4335 3034 1877 1147 767
06-30 56° 73° 4377 3067 1900 1162 777
07-01 47° 73° 4416 3095 1918 1172 782
07-02 53° 75° 4457 3127 1940 1186 791
07-03 69° 82° 4511 3170 1973 1211 812
07-04 63° 80° 4560 3210 2003 1233 828
07-05 63° 81° 4610 3250 2033 1255 845
07-06 63° 77° 4658 3288 2061 1275 860
07-07 56° 82° 4705 3325 2088 1294 874
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
07-08 67° 84° 4759 3368 2121 1319 895
07-09 68° 82° 4812 3411 2155 1344 915
07-10 62° 69° 4856 3445 2178 1360 925
07-11 61° 80° 4905 3484 2207 1381 941
07-12 65° 82° 4956 3525 2239 1404 960
07-13 65° 85° 5009 3568 2272 1429 980
07-14 70° 84° 5064 3614 2307 1457 1002
07-15 69° 84° 5119 3658 2341 1483 1023
07-16 68° 83° 5173 3702 2375 1509 1044
07-17 64° 81° 5223 3743 2406 1532 1062
07-18 55° 74° 5266 3775 2428 1546 1071
07-19 53° 77° 5309 3808 2451 1561 1082
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
07-20 55° 80° 5354 3843 2477 1578 1094
07-21 59° 81° 5402 3881 2504 1598 1109
07-22 64° 77° 5450 3920 2533 1619 1124
07-23 60° 83° 5500 3959 2562 1640 1140
07-24 66° 75° 5549 3998 2591 1661 1156
07-25 59° 77° 5594 4034 2617 1679 1169
07-26 55° 78° 5639 4068 2642 1695 1181
07-27 53° 81° 5684 4103 2667 1712 1193
07-28 59° 87° 5735 4144 2697 1735 1210
07-29 70° 84° 5790 4189 2732 1762 1232
07-30 70° 85° 5845 4234 2767 1789 1255
07-31 65° 88° 5899 4279 2802 1816 1276
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
08-01 67° 86° 5953 4323 2836 1842 1297
08-02 70° 83° 6008 4367 2870 1868 1318
08-03 65° 85° 6061 4410 2904 1893 1339
08-04 62° 85° 6113 4452 2935 1917 1357
08-05 68° 80° 6164 4494 2967 1941 1376
08-06 61° 71° 6209 4528 2991 1957 1387
08-07 56° 77° 6253 4562 3016 1973 1399
08-08 55° 81° 6299 4598 3041 1991 1412
08-09 62° 75° 6345 4634 3068 2009 1425
08-10 55° 71° 6386 4665 3088 2022 1433
08-11 57° 75° 6430 4699 3112 2038 1443
08-12 53° 78° 6473 4733 3136 2054 1454
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
08-13 57° 81° 6521 4770 3163 2073 1468
08-14 56° 82° 6567 4807 3190 2092 1482
08-15 59° 78° 6614 4843 3216 2110 1495
08-16 64° 81° 6664 4883 3247 2132 1513
08-17 67° 77° 6714 4923 3276 2154 1529
08-18 66° 75° 6762 4961 3304 2174 1545
08-19 55° 71° 6803 4993 3326 2188 1553
08-20 49° 68° 6840 5019 3342 2196 1557
08-21 46° 72° 6877 5046 3359 2205 1561
08-22 48° 75° 6916 5076 3379 2217 1567
08-23 51° 77° 6958 5107 3401 2230 1576
08-24 56° 83° 7005 5145 3428 2250 1590
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
08-25 66° 88° 7061 5190 3463 2277 1612
08-26 69° 89° 7117 5237 3500 2306 1636
08-27 69° 92° 7176 5285 3539 2336 1662
08-28 69° 81° 7230 5329 3572 2362 1682
08-29 65° 80° 7280 5369 3602 2384 1700
08-30 69° 84° 7334 5414 3637 2411 1721
08-31 64° 81° 7385 5454 3667 2433 1738
09-01 59° 75° 7430 5489 3692 2450 1751
09-02 47° 70° 7466 5515 3709 2458 1754
09-03 45° 74° 7504 5543 3726 2468 1758
09-04 48° 78° 7545 5574 3747 2481 1766
09-05 54° 85° 7592 5611 3774 2500 1781
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
09-06 54° 67° 7631 5640 3793 2511 1786
09-07 46° 60° 7662 5661 3804 2514 1786
09-08 41° 69° 7695 5685 3818 2520 1787
09-09 55° 77° 7740 5719 3842 2536 1798
09-10 51° 79° 7783 5752 3865 2551 1808
09-11 53° 84° 7829 5788 3891 2569 1821
09-12 55° 84° 7876 5825 3919 2588 1836
09-13 58° 83° 7924 5863 3947 2608 1851
09-14 56° 84° 7972 5901 3974 2628 1865
09-15 58° 85° 8021 5941 4004 2650 1882
09-16 54° 84° 8069 5978 4031 2669 1896
09-17 52° 81° 8113 6012 4055 2685 1907
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
09-18 53° 82° 8159 6048 4081 2703 1920
09-19 57° 82° 8206 6085 4109 2722 1935
09-20 61° 82° 8256 6125 4138 2744 1951
09-21 58° 86° 8306 6165 4168 2766 1968
09-22 59° 79° 8353 6202 4195 2785 1982
09-23 55° 65° 8391 6230 4213 2795 1987
09-24 57° 70° 8432 6262 4235 2809 1996
09-25 60° 74° 8477 6297 4260 2826 2008
09-26 50° 71° 8516 6325 4278 2836 2013
09-27 54° 74° 8558 6357 4300 2850 2022
09-28 63° 71° 8603 6392 4326 2867 2035
09-29 64° 75° 8650 6430 4353 2887 2049
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
09-30 56° 73° 8693 6463 4376 2902 2059
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
02-15 39° 53° 24 14 4 0 0
02-16 24° 38° 33 14 4 0 0
02-17 18° 25° 33 14 4 0 0
02-18 20° 43° 43 14 4 0 0
02-19 35° 52° 64 25 5 0 0
02-20 28° 43° 78 29 5 0 0
02-21 27° 37° 88 29 5 0 0
02-22 27° 32° 96 29 5 0 0
02-23 27° 37° 106 30 5 0 0
02-24 21° 28° 108 30 5 0 0
02-25 24° 33° 115 30 5 0 0
02-26 28° 42° 127 32 5 0 0
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
02-27 28° 35° 137 32 5 0 0
02-28 33° 44° 153 39 5 0 0
02-29 n/a n/a n/a n/a n/a n/a n/a
03-01 33° 51° 173 49 5 0 0
03-02 31° 39° 186 52 5 0 0
03-03 30° 35° 196 52 5 0 0
03-04 27° 44° 210 56 5 0 0
03-05 34° 49° 229 65 5 0 0
03-06 33° 40° 244 69 5 0 0
03-07 28° 42° 256 72 5 0 0
03-08 24° 44° 268 74 5 0 0
03-09 30° 43° 283 78 5 0 0
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
03-10 29° 34° 292 78 5 0 0
03-11 24° 37° 301 78 5 0 0
03-12 26° 32° 308 78 5 0 0
03-13 24° 29° 312 78 5 0 0
03-14 18° 35° 317 78 5 0 0
03-15 17° 45° 326 78 5 0 0
03-16 35° 53° 348 91 8 0 0
03-17 31° 49° 366 99 8 0 0
03-18 18° 30° 368 99 8 0 0
03-19 16° 37° 373 99 8 0 0
03-20 28° 50° 390 106 8 0 0
03-21 33° 55° 412 118 10 0 0
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
03-22 39° 49° 434 130 12 0 0
03-23 39° 47° 455 140 12 0 0
03-24 31° 45° 471 147 12 0 0
03-25 33° 41° 486 152 12 0 0
03-26 31° 50° 504 160 12 0 0
03-27 35° 49° 524 170 12 0 0
03-28 27° 49° 540 176 12 0 0
03-29 24° 41° 550 176 12 0 0
03-30 18° 47° 561 177 12 0 0
03-31 40° 56° 587 193 18 0 0
04-01 33° 57° 610 206 22 0 0
04-02 25° 47° 625 210 22 0 0
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
04-03 40° 59° 652 228 29 0 0
04-04 43° 52° 678 244 35 0 0
04-05 46° 70° 714 270 51 8 3
04-06 35° 46° 732 278 51 8 3
04-07 31° 47° 749 285 51 8 3
04-08 34° 57° 772 298 54 8 3
04-09 33° 65° 799 315 61 8 3
04-10 41° 67° 832 337 73 12 3
04-11 50° 73° 871 367 93 24 10
04-12 57° 79° 917 403 119 42 23
04-13 56° 81° 964 440 146 61 37
04-14 47° 82° 1006 472 168 75 46
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
04-15 60° 83° 1055 511 197 96 62
04-16 42° 68° 1088 534 210 101 62
04-17 34° 42° 1104 540 210 101 62
04-18 32° 46° 1121 547 210 101 62
04-19 29° 59° 1143 559 213 101 62
04-20 42° 71° 1178 584 227 108 64
04-21 46° 62° 1210 606 239 112 64
04-22 36° 49° 1230 616 239 112 64
04-23 32° 45° 1247 623 239 112 64
04-24 33° 47° 1265 631 239 112 64
04-25 30° 46° 1281 637 239 112 64
04-26 30° 52° 1301 646 239 112 64
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
04-27 32° 62° 1326 661 244 112 64
04-28 43° 51° 1351 677 250 112 64
04-29 44° 65° 1384 699 262 116 64
04-30 41° 50° 1407 713 266 116 64
05-01 36° 46° 1427 722 266 116 64
05-02 37° 43° 1445 730 266 116 64
05-03 38° 55° 1469 745 271 116 64
05-04 36° 62° 1496 762 278 116 64
05-05 46° 71° 1532 788 294 125 67
05-06 48° 69° 1569 815 311 133 71
05-07 54° 79° 1614 850 336 150 82
05-08 51° 66° 1650 876 352 158 86
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
05-09 46° 70° 1686 902 368 166 89
05-10 46° 77° 1726 932 387 178 95
05-11 47° 81° 1768 964 409 192 104
05-12 54° 80° 1813 999 434 209 116
05-13 62° 72° 1857 1033 459 226 128
05-14 51° 66° 1894 1060 476 234 132
05-15 40° 73° 1929 1084 490 241 133
05-16 44° 78° 1967 1113 509 251 138
05-17 41° 59° 1995 1131 517 251 138
05-18 38° 68° 2026 1152 527 254 138
05-19 48° 72° 2064 1180 546 264 144
05-20 46° 64° 2097 1203 558 269 144
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
05-21 44° 75° 2135 1231 576 279 148
05-22 46° 74° 2173 1259 595 289 154
05-23 52° 80° 2217 1293 618 305 164
05-24 47° 64° 2250 1316 632 310 165
05-25 39° 66° 2281 1337 642 313 165
05-26 36° 73° 2313 1359 655 317 165
05-27 42° 78° 2351 1387 672 327 170
05-28 47° 80° 2393 1419 694 341 178
05-29 50° 85° 2438 1454 720 358 191
05-30 55° 89° 2488 1494 750 380 208
05-31 64° 88° 2542 1538 784 406 229
06-01 65° 89° 2597 1583 819 433 251
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
06-02 57° 89° 2649 1624 850 457 269
06-03 60° 88° 2700 1666 882 480 288
06-04 54° 80° 2746 1701 907 498 300
06-05 50° 82° 2790 1735 931 514 311
06-06 56° 74° 2833 1769 954 529 322
06-07 44° 74° 2870 1796 971 538 325
06-08 45° 76° 2908 1824 990 548 331
06-09 48° 77° 2949 1855 1010 561 339
06-10 50° 83° 2994 1889 1035 578 350
06-11 55° 67° 3032 1918 1054 588 356
06-12 51° 61° 3067 1942 1068 595 357
06-13 48° 70° 3104 1969 1085 604 361
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
06-14 50° 75° 3144 2000 1106 616 369
06-15 52° 76° 3187 2032 1128 631 378
06-16 58° 72° 3229 2065 1151 645 388
06-17 52° 80° 3274 2099 1175 662 399
06-18 51° 85° 3320 2135 1201 680 412
06-19 58° 85° 3369 2174 1230 701 428
06-20 61° 87° 3421 2217 1262 725 447
06-21 63° 89° 3475 2261 1296 751 468
06-22 62° 82° 3525 2301 1326 773 485
06-23 68° 76° 3575 2341 1356 795 503
06-24 66° 89° 3630 2386 1392 822 525
06-25 66° 85° 3683 2429 1425 847 545
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
06-26 65° 70° 3729 2465 1450 865 557
06-27 61° 74° 3774 2500 1475 882 570
06-28 53° 80° 3819 2534 1500 899 581
06-29 62° 87° 3871 2577 1533 923 601
06-30 66° 91° 3928 2623 1569 952 624
07-01 67° 84° 3981 2667 1603 977 645
07-02 70° 77° 4033 2708 1634 1001 663
07-03 68° 85° 4087 2753 1668 1027 684
07-04 66° 90° 4143 2798 1704 1055 707
07-05 68° 91° 4200 2846 1742 1084 732
07-06 70° 82° 4254 2890 1776 1110 753
07-07 59° 79° 4302 2927 1803 1130 767
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
07-08 64° 74° 4348 2964 1830 1149 781
07-09 58° 81° 4396 3002 1857 1168 795
07-10 57° 87° 4445 3041 1887 1189 812
07-11 66° 87° 4499 3085 1921 1216 833
07-12 58° 77° 4545 3121 1946 1233 846
07-13 59° 76° 4590 3156 1972 1251 858
07-14 60° 85° 4641 3197 2003 1273 876
07-15 66° 81° 4693 3239 2034 1297 895
07-16 65° 81° 4744 3280 2065 1320 912
07-17 62° 79° 4792 3318 2094 1341 928
07-18 54° 78° 4837 3352 2118 1357 939
07-19 57° 83° 4885 3390 2146 1377 954
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
07-20 64° 84° 4937 3433 2178 1401 973
07-21 62° 80° 4986 3472 2208 1422 990
07-22 58° 82° 5034 3510 2235 1442 1005
07-23 58° 75° 5079 3545 2260 1459 1016
07-24 58° 84° 5128 3584 2289 1480 1032
07-25 61° 86° 5179 3625 2321 1503 1051
07-26 67° 84° 5233 3668 2354 1529 1071
07-27 69° 87° 5289 3715 2390 1557 1094
07-28 70° 89° 5346 3762 2428 1587 1119
07-29 70° 81° 5400 3806 2461 1612 1139
07-30 64° 77° 5448 3844 2490 1632 1155
07-31 56° 79° 5493 3879 2515 1649 1167
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
08-01 57° 79° 5539 3915 2541 1667 1180
08-02 62° 83° 5590 3956 2571 1690 1198
08-03 61° 86° 5642 3997 2603 1714 1216
08-04 64° 82° 5693 4039 2634 1737 1235
08-05 63° 79° 5742 4078 2663 1758 1250
08-06 62° 68° 5785 4111 2686 1773 1261
08-07 63° 77° 5833 4149 2714 1793 1276
08-08 61° 83° 5882 4188 2744 1815 1292
08-09 61° 82° 5932 4228 2774 1836 1309
08-10 64° 80° 5982 4268 2804 1858 1326
08-11 55° 80° 6028 4303 2829 1876 1338
08-12 65° 81° 6079 4344 2860 1899 1356
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
08-13 59° 77° 6125 4381 2887 1917 1370
08-14 65° 78° 6174 4420 2916 1938 1386
08-15 61° 68° 6217 4453 2938 1953 1395
08-16 54° 79° 6262 4487 2963 1970 1407
08-17 62° 73° 6307 4523 2988 1987 1419
08-18 55° 73° 6348 4554 3010 2000 1428
08-19 50° 77° 6390 4586 3031 2014 1436
08-20 64° 88° 6444 4630 3066 2040 1458
08-21 64° 79° 6494 4670 3095 2062 1474
08-22 58° 73° 6537 4703 3119 2077 1485
08-23 64° 91° 6593 4749 3154 2105 1507
08-24 72° 87° 6650 4796 3192 2134 1532
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
08-25 67° 76° 6700 4835 3221 2156 1548
08-26 61° 73° 6745 4870 3246 2173 1560
08-27 51° 72° 6784 4900 3266 2184 1567
08-28 48° 75° 6823 4929 3285 2195 1573
08-29 54° 76° 6866 4962 3307 2210 1583
08-30 54° 69° 6906 4991 3327 2222 1589
08-31 45° 73° 6943 5018 3344 2231 1593
09-01 48° 78° 6983 5049 3365 2243 1601
09-02 56° 81° 7030 5085 3391 2262 1614
09-03 64° 88° 7084 5129 3425 2288 1635
09-04 71° 88° 7141 5177 3463 2317 1660
09-05 71° 89° 7199 5225 3500 2347 1685
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
09-06 67° 80° 7250 5266 3532 2371 1703
09-07 64° 70° 7295 5301 3557 2387 1715
09-08 57° 63° 7333 5329 3575 2397 1720
09-09 52° 68° 7371 5357 3593 2407 1725
09-10 49° 73° 7410 5386 3612 2419 1731
09-11 54° 68° 7450 5415 3631 2430 1737
09-12 55° 69° 7489 5445 3651 2442 1744
09-13 45° 62° 7521 5467 3663 2445 1744
09-14 42° 69° 7555 5491 3676 2451 1745
09-15 46° 71° 7591 5517 3693 2459 1748
09-16 48° 72° 7629 5545 3711 2469 1753
09-17 55° 69° 7669 5575 3731 2481 1760
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
09-18 50° 66° 7706 5601 3747 2490 1763
09-19 46° 68° 7741 5627 3762 2497 1766
09-20 56° 78° 7786 5662 3788 2514 1778
09-21 57° 81° 7833 5699 3815 2533 1792
09-22 59° 80° 7881 5737 3842 2553 1807
09-23 51° 73° 7921 5767 3863 2565 1814
09-24 48° 76° 7961 5797 3882 2577 1821
09-25 59° 66° 8001 5827 3903 2590 1828
09-26 59° 71° 8044 5860 3926 2605 1838
09-27 59° 63° 8083 5889 3945 2616 1844
09-28 58° 62° 8121 5917 3963 2626 1849
09-29 58° 68° 8162 5948 3984 2639 1857
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
09-30 53° 76° 8205 5981 4006 2653 1867

 

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!
 

 

© Copyright 2004-2024, Department of Crop and Soil Sciences, Michigan State University.
Weather data and programming assistance provided by Enviro-Weather and NWS
All Rights Reserved. Custom web development by Dynamite Inc.