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Crabgrass Germination Prediction (GDD 50)
through Wed, May. 23. 2018

 

GDD Total: 344 (Base 50) through Wed, May. 23, 2018

  

Kalamazoo, MI

       

Forecast »

Done

1401

Late

601

Germination

200

Early

100

Under

0

 

Generously Supported By:



Tabular Data

Daily GDD accumulation for various base temperature models in 2017 & 2018

2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
02-19 36° 53° 56 22 3 0 0
02-20 44° 61° 87 43 13 3 0
02-21 31° 42° 101 47 13 3 0
02-22 31° 41° 115 51 13 3 0
02-23 36° 45° 133 59 13 3 0
02-24 34° 43° 150 66 13 3 0
02-25 35° 49° 170 76 13 3 0
02-26 28° 52° 188 84 13 3 0
02-27 36° 61° 215 101 20 3 0
02-28 46° 57° 244 120 30 4 0
03-01 33° 45° 261 127 30 4 0
03-02 29° 43° 276 132 30 4 0
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
03-03 27° 43° 289 135 30 4 0
03-04 26° 46° 303 139 30 4 0
03-05 27° 39° 314 140 30 4 0
03-06 30° 38° 326 142 30 4 0
03-07 25° 33° 333 142 30 4 0
03-08 23° 29° 337 142 30 4 0
03-09 20° 31° 340 142 30 4 0
03-10 15° 37° 345 142 30 4 0
03-11 20° 40° 353 142 30 4 0
03-12 24° 39° 363 142 30 4 0
03-13 25° 33° 370 142 30 4 0
03-14 22° 38° 378 142 30 4 0
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
03-15 28° 38° 389 143 30 4 0
03-16 19° 37° 395 143 30 4 0
03-17 25° 50° 411 149 30 4 0
03-18 24° 55° 428 156 30 4 0
03-19 31° 50° 447 164 30 4 0
03-20 22° 43° 457 165 30 4 0
03-21 25° 41° 468 166 30 4 0
03-22 22° 44° 479 167 30 4 0
03-23 22° 45° 491 169 30 4 0
03-24 25° 43° 503 171 30 4 0
03-25 21° 43° 514 171 30 4 0
03-26 27° 56° 533 181 30 4 0
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
03-27 41° 52° 558 196 34 4 0
03-28 39° 49° 580 208 37 4 0
03-29 43° 48° 604 222 41 4 0
03-30 31° 46° 621 229 41 4 0
03-31 32° 50° 640 238 41 4 0
04-01 27° 36° 649 238 41 4 0
04-02 18° 42° 658 238 41 4 0
04-03 35° 40° 673 244 41 4 0
04-04 27° 36° 683 244 41 4 0
04-05 28° 42° 696 247 41 4 0
04-06 26° 36° 705 247 41 4 0
04-07 21° 31° 709 247 41 4 0
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
04-08 17° 39° 715 247 41 4 0
04-09 30° 36° 726 248 41 4 0
04-10 24° 44° 738 250 41 4 0
04-11 36° 58° 763 264 45 4 0
04-12 48° 71° 801 292 63 13 4
04-13 45° 65° 834 315 76 18 4
04-14 33° 45° 850 322 76 18 4
04-15 32° 39° 864 325 76 18 4
04-16 31° 38° 876 327 76 18 4
04-17 27° 33° 884 327 76 18 4
04-18 28° 43° 897 330 76 18 4
04-19 32° 53° 918 341 76 18 4
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
04-20 28° 60° 940 353 78 18 4
04-21 32° 59° 963 366 82 18 4
04-22 41° 64° 994 387 92 21 4
04-23 42° 74° 1030 413 108 29 7
04-24 53° 61° 1065 438 124 36 10
04-25 43° 60° 1095 458 133 38 10
04-26 33° 64° 1121 474 139 38 10
04-27 43° 58° 1150 493 148 39 10
04-28 38° 53° 1173 506 151 39 10
04-29 30° 59° 1195 518 154 39 10
04-30 33° 74° 1227 540 165 42 10
05-01 57° 84° 1276 579 194 63 25
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
05-02 66° 87° 1330 623 229 89 47
05-03 61° 73° 1375 658 253 106 59
05-04 57° 68° 1415 688 274 119 66
05-05 55° 80° 1461 724 299 136 79
05-06 53° 74° 1502 755 320 149 87
05-07 44° 71° 1538 781 336 157 90
05-08 52° 80° 1582 815 361 173 101
05-09 57° 82° 1630 853 388 193 115
05-10 55° 67° 1669 882 408 204 122
05-11 44° 55° 1697 900 415 204 122
05-12 45° 53° 1724 917 422 204 122
05-13 49° 63° 1758 941 436 211 123
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
05-14 56° 77° 1802 975 461 227 134
05-15 61° 73° 1847 1010 486 244 147
05-16 54° 79° 1892 1045 510 260 158
05-17 52° 81° 1936 1079 535 277 170
05-18 51° 79° 1979 1112 558 292 180
05-19 57° 68° 2020 1143 578 305 187
05-20 55° 63° 2057 1170 595 314 191
05-21 55° 60° 2092 1195 611 321 194
05-22 53° 68° 2131 1224 629 331 199
05-23 46° 78° 2171 1254 649 344 206
05-24 54° 83° 2217 1290 676 362 220
05-25 58° 85° 2267 1330 705 383 236
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
05-26 65° 85° 2320 1373 738 409 256
05-27 64° 86° 2373 1416 771 434 276
05-28 65° 85° 2426 1459 804 458 296
05-29 61° 80° 2474 1497 833 479 312
05-30 61° 82° 2524 1537 862 501 328
2017Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
02-19 33° 63° 104 54 18 2 0
02-20 36° 63° 131 71 25 2 0
02-21 47° 60° 163 93 37 6 0
02-22 44° 62° 194 114 48 8 0
02-23 46° 59° 224 135 58 11 0
02-24 38° 61° 252 152 66 11 0
02-25 19° 37° 258 152 66 11 0
02-26 18° 43° 267 152 66 11 0
02-27 31° 50° 285 161 66 11 0
02-28 41° 56° 312 177 72 11 0
03-01 28° 55° 332 187 72 11 0
03-02 23° 31° 337 187 72 11 0
2017Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
03-03 19° 26° 337 187 72 11 0
03-04 20° 33° 341 187 72 11 0
03-05 24° 51° 357 192 72 11 0
03-06 50° 57° 388 214 84 14 0
03-07 41° 59° 416 231 92 14 0
03-08 39° 49° 438 243 94 14 0
03-09 31° 39° 451 246 94 14 0
03-10 17° 31° 453 246 94 14 0
03-11 18° 21° 453 246 94 14 0
03-12 15° 30° 453 246 94 14 0
03-13 21° 28° 456 246 94 14 0
03-14 14° 23° 456 246 94 14 0
2017Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
03-15 13° 27° 456 246 94 14 0
03-16 19° 39° 463 246 94 14 0
03-17 25° 34° 471 246 94 14 0
03-18 34° 38° 485 251 94 14 0
03-19 34° 44° 502 258 94 14 0
03-20 36° 50° 523 269 95 14 0
03-21 32° 50° 542 278 95 14 0
03-22 19° 35° 547 278 95 14 0
03-23 23° 45° 559 280 95 14 0
03-24 40° 79° 596 307 112 24 4
03-25 42° 58° 624 325 120 24 4
03-26 42° 58° 652 343 128 24 4
2017Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
03-27 47° 54° 681 362 137 24 4
03-28 39° 47° 702 373 138 24 4
03-29 31° 54° 723 384 138 24 4
03-30 39° 44° 742 393 138 24 4
03-31 37° 40° 759 400 138 24 4
04-01 31° 56° 781 411 140 24 4
04-02 32° 56° 803 423 142 24 4
04-03 47° 53° 830 441 150 24 4
04-04 39° 55° 856 456 155 24 4
04-05 35° 45° 873 464 155 24 4
04-06 33° 39° 888 468 155 24 4
04-07 34° 50° 907 478 155 24 4
2017Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
04-08 29° 63° 931 492 159 24 4
04-09 48° 75° 971 522 179 36 11
04-10 60° 74° 1016 557 204 53 23
04-11 42° 58° 1044 575 212 53 23
04-12 37° 57° 1070 590 217 53 23
04-13 44° 54° 1097 608 225 53 23
04-14 42° 67° 1129 630 237 58 23
04-15 54° 82° 1175 666 262 75 36
04-16 54° 71° 1215 696 283 88 43
04-17 41° 68° 1248 719 296 93 43
04-18 47° 73° 1286 747 314 103 48
04-19 54° 70° 1326 777 334 115 55
2017Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
04-20 52° 71° 1366 807 353 126 62
04-21 43° 52° 1391 822 359 126 62
04-22 37° 62° 1418 839 366 126 62
04-23 35° 69° 1449 859 376 128 62
04-24 41° 72° 1483 884 391 135 63
04-25 52° 74° 1524 915 411 148 71
04-26 61° 84° 1574 955 442 170 89
04-27 48° 65° 1609 979 456 177 90
04-28 41° 63° 1639 999 466 179 90
04-29 47° 55° 1667 1018 475 179 90
04-30 42° 63° 1698 1038 485 182 90
05-01 49° 62° 1731 1062 499 187 90
2017Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
05-02 41° 48° 1753 1074 501 187 90
05-03 33° 58° 1777 1088 505 187 90
05-04 44° 49° 1801 1102 509 187 90
05-05 42° 60° 1830 1121 518 188 90
05-06 39° 58° 1857 1138 525 188 90
05-07 35° 51° 1878 1149 526 188 90
05-08 28° 57° 1899 1159 526 188 90
05-09 35° 64° 1926 1176 533 188 90
05-10 49° 71° 1963 1204 551 197 95
05-11 45° 68° 1998 1228 565 204 96
05-12 45° 71° 2034 1254 581 212 99
05-13 44° 73° 2070 1281 598 220 103
2017Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
05-14 52° 75° 2111 1312 619 233 111
05-15 50° 76° 2153 1343 640 247 119
05-16 61° 78° 2200 1381 668 266 134
05-17 70° 85° 2256 1427 704 294 157
05-18 59° 85° 2306 1467 734 316 174
05-19 45° 58° 2335 1486 743 317 174
05-20 46° 61° 2367 1508 754 321 174
05-21 54° 70° 2407 1538 775 333 181
05-22 50° 71° 2446 1566 793 343 186
05-23 58° 66° 2485 1596 813 355 193
05-24 57° 73° 2528 1629 836 370 203
05-25 56° 63° 2565 1656 853 379 207
2017Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
05-26 51° 72° 2605 1685 872 391 214
05-27 58° 75° 2649 1720 897 407 225
05-28 57° 79° 2695 1756 923 425 238
05-29 54° 77° 2739 1790 946 441 249
05-30 49° 69° 2776 1817 964 450 253
05-31 50° 72° 2815 1846 983 461 259
06-01 50° 74° 2855 1876 1003 473 266
06-02 50° 80° 2898 1909 1026 488 276
06-03 51° 82° 2943 1944 1051 505 288
06-04 66° 86° 2997 1988 1085 531 309
06-05 57° 72° 3040 2020 1107 546 318
06-06 48° 77° 3080 2051 1128 558 326
2017Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
06-07 49° 76° 3121 2081 1148 571 334
06-08 48° 79° 3162 2113 1170 584 342
06-09 58° 83° 3211 2152 1199 605 358
06-10 62° 88° 3264 2195 1231 630 378
06-11 69° 91° 3321 2242 1269 659 402
06-12 71° 92° 3381 2292 1308 691 429
06-13 70° 90° 3439 2339 1346 721 454
06-14 69° 90° 3496 2387 1384 750 478
06-15 67° 87° 3551 2432 1419 777 500
06-16 66° 83° 3604 2474 1451 801 519
06-17 69° 89° 3661 2521 1488 831 543
06-18 67° 79° 3711 2562 1519 853 561
2017Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
06-19 59° 75° 3756 2597 1544 870 573
06-20 57° 72° 3799 2630 1567 885 583
06-21 52° 77° 3841 2662 1589 899 592
06-22 65° 84° 3894 2705 1622 924 612
06-23 64° 75° 3942 2742 1649 944 627
06-24 60° 72° 3985 2776 1673 959 637
06-25 55° 70° 4026 2807 1694 972 645
06-26 53° 68° 4065 2836 1713 983 651
06-27 48° 72° 4103 2864 1730 993 656
06-28 51° 76° 4145 2895 1752 1006 664
06-29 64° 84° 4197 2937 1784 1031 684
06-30 65° 80° 4247 2978 1815 1053 701
2017Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
07-01 68° 82° 4300 3021 1848 1078 721
07-02 59° 83° 4349 3059 1876 1099 737
07-03 65° 80° 4399 3100 1907 1121 754
07-04 63° 82° 4449 3140 1937 1143 771
07-05 58° 84° 4498 3179 1966 1164 787
07-06 63° 89° 4552 3223 2000 1190 808
07-07 66° 82° 4604 3265 2032 1214 827
07-08 62° 77° 4651 3302 2059 1233 841
07-09 52° 81° 4696 3336 2083 1250 853
07-10 65° 77° 4745 3376 2113 1271 869
07-11 69° 84° 4800 3421 2147 1298 891
07-12 69° 81° 4853 3464 2181 1323 911
2017Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
07-13 68° 79° 4904 3505 2212 1346 929
07-14 64° 75° 4952 3543 2240 1366 944
07-15 56° 77° 4997 3578 2264 1383 956
07-16 65° 81° 5047 3618 2295 1405 973
07-17 58° 79° 5094 3655 2322 1424 987
07-18 60° 85° 5144 3695 2352 1446 1004
07-19 64° 88° 5198 3739 2386 1472 1025
07-20 70° 84° 5253 3784 2421 1499 1047
07-21 62° 86° 5306 3827 2453 1524 1067
07-22 69° 81° 5359 3870 2487 1549 1087
07-23 66° 85° 5413 3913 2520 1574 1107
07-24 60° 73° 5457 3948 2545 1591 1119
2017Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
07-25 55° 79° 5502 3983 2570 1608 1131
07-26 61° 82° 5551 4022 2599 1629 1147
07-27 67° 85° 5605 4066 2633 1655 1168
07-28 61° 80° 5654 4105 2662 1676 1184
07-29 53° 80° 5699 4139 2686 1692 1195
07-30 55° 82° 5745 4176 2713 1711 1209
07-31 56° 83° 5793 4214 2740 1731 1224
08-01 57° 84° 5841 4252 2769 1751 1239
08-02 62° 84° 5893 4293 2800 1775 1258
08-03 60° 83° 5943 4333 2830 1796 1274
08-04 58° 66° 5983 4363 2850 1808 1281
08-05 56° 74° 6026 4396 2873 1823 1291
2017Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
08-06 57° 75° 6070 4430 2897 1840 1303
08-07 57° 74° 6113 4464 2921 1855 1313
08-08 50° 80° 6156 4497 2944 1870 1323
08-09 55° 81° 6202 4533 2970 1888 1336
08-10 57° 82° 6250 4570 2997 1908 1351
08-11 63° 78° 6299 4609 3026 1928 1366
08-12 59° 75° 6344 4644 3051 1946 1378
08-13 51° 78° 6386 4677 3074 1960 1388
08-14 62° 81° 6436 4716 3103 1982 1404
08-15 65° 81° 6487 4757 3134 2005 1422
08-16 61° 87° 6539 4799 3166 2029 1441
08-17 70° 82° 6593 4844 3200 2055 1463
2017Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
08-18 64° 74° 6640 4880 3227 2074 1477
08-19 62° 80° 6689 4919 3256 2095 1492
08-20 54° 85° 6736 4957 3284 2114 1507
08-21 69° 84° 6791 5002 3319 2141 1529
08-22 60° 75° 6837 5038 3345 2159 1542
08-23 56° 73° 6880 5070 3367 2173 1551
08-24 50° 65° 6915 5096 3383 2181 1554
08-25 44° 71° 6951 5121 3398 2189 1557
08-26 45° 75° 6989 5149 3416 2199 1561
08-27 58° 74° 7033 5183 3440 2214 1572
08-28 60° 73° 7077 5218 3465 2231 1584
08-29 54° 76° 7120 5251 3488 2246 1594
2017Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
08-30 53° 77° 7163 5284 3511 2261 1604
08-31 57° 74° 7206 5317 3534 2276 1614
09-01 47° 69° 7242 5343 3550 2284 1617
09-02 45° 76° 7281 5371 3568 2294 1622
09-03 51° 78° 7323 5404 3591 2309 1632
09-04 58° 85° 7373 5443 3620 2330 1648
09-05 53° 68° 7411 5472 3639 2341 1654
09-06 45° 63° 7443 5494 3651 2345 1654
09-07 46° 57° 7473 5513 3660 2347 1654
09-08 51° 68° 7510 5541 3678 2356 1659
09-09 43° 68° 7544 5565 3691 2362 1659
09-10 41° 69° 7577 5588 3705 2367 1659
2017Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
09-11 43° 73° 7613 5614 3721 2375 1662
09-12 45° 79° 7653 5644 3741 2387 1669
09-13 53° 69° 7693 5673 3760 2399 1676
09-14 55° 78° 7737 5708 3785 2415 1687
09-15 53° 82° 7782 5743 3810 2432 1700
09-16 58° 84° 7831 5782 3839 2453 1716
09-17 63° 88° 7885 5826 3873 2479 1736
09-18 57° 78° 7931 5861 3898 2497 1749
09-19 61° 71° 7975 5895 3922 2513 1760
09-20 66° 85° 8029 5939 3956 2538 1781
09-21 70° 92° 8088 5988 3995 2570 1807
09-22 66° 92° 8145 6035 4032 2599 1831
2017Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
09-23 65° 93° 8202 6083 4070 2628 1855
09-24 62° 92° 8257 6128 4105 2655 1877
09-25 61° 90° 8311 6172 4139 2681 1898
09-26 60° 89° 8364 6215 4172 2706 1918
09-27 58° 72° 8407 6248 4195 2721 1928
09-28 46° 69° 8443 6273 4210 2729 1931
09-29 50° 68° 8480 6301 4227 2738 1935
09-30 39° 66° 8510 6321 4238 2740 1935

 

Latest Updates

March 9th, 2018Note Regarding 2018 Alerts

We had an issue with the emailed alerts that should be resolved now, and apologize for any inconvenience. You may receive outdated alerts tomorrow (Saturday, March 10, 2018), so please check the details before taking any action. Thank you.


 

February 17th, 2018Welcome to a New GDD Season!

GDDTracker is ready for 2018 with GDD tracking that began on February 15. New this year will be the Smith-Kerns Dollar Spot Prediction Model which will be launching soon. Check back soon for additional details!
 

March 29th, 2017Timing crabgrass pre-emergence applications

Please note that Dr. Frank has written another helpful article available from the MSU Extension web site.

http://msue.anr.msu.edu/news/timing_crabgrass_pre_emergence_applications


 

March 9th, 2017Controlling Annual Bluegrass Seedheads: Spray Now or Wait?

Dr. Kevin Frank has posted a useful article at the MSU Extension website. Please note it is written specifically for Michigan but may apply to other midwest regions.

"Growing degree-days have accumulated quickly, but it may not yet be time to apply plant growth regulators to control annual bluegrass seedheads on golf courses.

Read more: http://msue.anr.msu.edu/news/controlling_annual_bluegrass_seedheads_spray_now_or_wait


 

February 26th, 2017Early Spring in Michigan: Boom or Bust?

Dr. Kevin Frank has posted a helpful article on the MSU Extension website. Much of the midwest is experiencing the same (very) early warm-up, so non-Michiganders may find it help as well!

http://msue.anr.msu.edu/news/is_an_early_spring_a_boom_or_bust_for_golf_course_turf
 

February 16th, 2017Missing weather data

All air temperature data has been accounted for now.