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Relative Flowering Times for Broadleaf Weeds (GDD 50)
through Wed, May. 20. 2020

 

GDD Total: 129 (Base 50) through Wed, May. 20, 2020

  

East Lansing, MI

       

Forecast »

Late Season (Biennials and Perennials)

1401

Mid Season and Late Season (SA and Perennials)

601

Mid Season (Perennials)

201

Early and Mid Season (WA and Perennials)

21

Early Season (WA)

5

 

Generously Supported By:



Tabular Data

Daily GDD accumulation for various base temperature models in 2020 & 2019

2020Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
02-15 31° 0 0 0 0 0
02-16 26° 36° 9 0 0 0 0
02-17 19° 33° 13 0 0 0 0
02-18 27° 36° 23 0 0 0 0
02-19 16° 28° 23 0 0 0 0
02-20 11° 22° 23 0 0 0 0
02-21 11° 31° 23 0 0 0 0
02-22 24° 43° 35 2 0 0 0
02-23 31° 48° 52 9 0 0 0
02-24 32° 43° 68 15 0 0 0
02-25 30° 36° 79 16 0 0 0
02-26 23° 30° 83 16 0 0 0
2020Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
02-27 20° 23° 83 16 0 0 0
02-28 15° 26° 83 16 0 0 0
02-29 16° 33° 86 16 0 0 0
03-01 20° 45° 97 17 0 0 0
03-02 35° 50° 117 28 1 0 0
03-03 30° 44° 132 33 1 0 0
03-04 27° 45° 146 37 1 0 0
03-05 23° 49° 160 41 1 0 0
03-06 28° 35° 170 41 1 0 0
03-07 18° 46° 180 41 1 0 0
03-08 35° 61° 206 57 7 0 0
03-09 48° 58° 237 78 18 3 0
2020Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
03-10 35° 53° 259 89 20 3 0
03-11 31° 41° 273 94 20 3 0
03-12 38° 53° 296 107 23 3 0
03-13 34° 49° 316 116 23 3 0
03-14 28° 37° 326 117 23 3 0
03-15 25° 43° 338 119 23 3 0
03-16 21° 44° 349 120 23 3 0
03-17 32° 48° 367 128 23 3 0
03-18 28° 45° 382 133 23 3 0
03-19 33° 51° 402 143 23 3 0
03-20 27° 61° 424 155 25 3 0
03-21 23° 33° 430 155 25 3 0
2020Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
03-22 18° 38° 436 155 25 3 0
03-23 30° 39° 449 158 25 3 0
03-24 28° 44° 463 162 25 3 0
03-25 32° 56° 485 173 27 3 0
03-26 44° 53° 511 190 33 3 0
03-27 36° 51° 532 201 35 3 0
03-28 41° 49° 555 214 38 3 0
03-29 43° 57° 583 232 46 3 0
03-30 38° 43° 602 240 46 3 0
03-31 36° 41° 618 247 46 3 0
04-01 38° 48° 639 258 47 3 0
04-02 33° 60° 663 272 51 3 0
2020Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
04-03 34° 63° 689 288 57 3 0
04-04 41° 55° 715 304 63 3 0
04-05 34° 54° 738 316 66 3 0
04-06 32° 62° 762 331 70 3 0
04-07 44° 73° 799 358 87 11 3
04-08 46° 65° 833 381 101 17 4
04-09 34° 47° 851 390 101 17 4
04-10 32° 41° 866 395 101 17 4
04-11 28° 57° 886 405 101 17 4
04-12 45° 61° 917 426 112 20 4
04-13 33° 54° 938 437 113 20 4
04-14 28° 38° 949 438 113 20 4
2020Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
04-15 26° 35° 958 438 113 20 4
04-16 22° 40° 967 438 113 20 4
04-17 31° 37° 979 440 113 20 4
04-18 30° 54° 999 450 113 20 4
04-19 39° 59° 1026 467 120 20 4
04-20 29° 58° 1047 479 122 20 4
04-21 30° 47° 1064 486 122 20 4
04-22 24° 39° 1074 486 122 20 4
04-23 34° 44° 1091 493 122 20 4
04-24 38° 53° 1114 506 125 20 4
04-25 35° 55° 1137 519 128 20 4
04-26 42° 61° 1167 539 138 22 4
2020Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
04-27 31° 62° 1191 553 142 22 4
04-28 43° 70° 1226 578 157 28 6
04-29 54° 62° 1262 604 173 36 9
04-30 44° 53° 1289 620 180 36 9
05-01 38° 65° 1318 640 189 38 9
05-02 52° 76° 1360 672 211 52 18
05-03 53° 71° 1400 702 231 64 25
05-04 37° 57° 1425 717 236 64 25
05-05 39° 52° 1449 731 240 64 25
05-06 33° 61° 1474 745 245 64 25
05-07 39° 61° 1502 764 253 64 25
05-08 31° 42° 1517 769 253 64 25
2020Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
05-09 26° 51° 1533 775 253 64 25
05-10 38° 56° 1558 790 258 64 25
05-11 34° 46° 1576 798 258 64 25
05-12 31° 58° 1599 811 260 64 25
05-13 30° 62° 1623 825 265 64 25
05-14 47° 65° 1657 849 279 70 26
05-15 59° 72° 1700 882 302 85 36
05-16 51° 68° 1738 910 319 95 40
05-17 52° 57° 1770 932 332 100 40
05-18 55° 61° 1806 958 348 107 43
05-19 56° 64° 1844 986 366 118 48
05-20 54° 69° 1884 1016 386 129 55
2020Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
05-21 53° 72° 1925 1047 406 142 63
05-22 60° 68° 1967 1079 428 156 72
05-23 59° 76° 2012 1114 454 173 84
05-24 60° 81° 2061 1153 482 194 100
05-25 64° 85° 2113 1195 515 218 119
05-26 68° 85° 2168 1240 549 245 141
05-27 68° 81° 2220 1282 582 269 160
05-28 65° 79° 2270 1322 612 291 177
05-29 58° 73° 2314 1356 635 307 188
05-30 53° 72° 2354 1386 656 319 195
2019Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
02-15 17° 40° 7 0 0 0 0
02-16 20° 26° 8 0 0 0 0
02-17 20° 25° 8 0 0 0 0
02-18 25° 8 0 0 0 0
02-19 -2° 27° 8 0 0 0 0
02-20 20° 36° 14 0 0 0 0
02-21 28° 35° 23 0 0 0 0
02-22 21° 38° 31 0 0 0 0
02-23 29° 41° 44 3 0 0 0
02-24 24° 46° 57 6 0 0 0
02-25 14° 23° 57 6 0 0 0
02-26 11° 20° 57 6 0 0 0
2019Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
02-27 16° 24° 57 6 0 0 0
02-28 13° 29° 57 6 0 0 0
02-29 n/a n/a n/a n/a n/a n/a n/a
03-01 17° 36° 62 6 0 0 0
03-02 26° 32° 68 6 0 0 0
03-03 12° 25° 68 6 0 0 0
03-04 13° 68 6 0 0 0
03-05 17° 68 6 0 0 0
03-06 21° 68 6 0 0 0
03-07 13° 26° 68 6 0 0 0
03-08 12° 38° 72 6 0 0 0
03-09 21° 39° 80 6 0 0 0
2019Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
03-10 34° 44° 97 13 0 0 0
03-11 28° 36° 107 13 0 0 0
03-12 22° 46° 119 15 0 0 0
03-13 36° 52° 141 27 2 0 0
03-14 46° 61° 172 49 14 4 0
03-15 33° 44° 189 55 14 4 0
03-16 28° 35° 198 55 14 4 0
03-17 19° 37° 204 55 14 4 0
03-18 22° 41° 214 55 14 4 0
03-19 23° 48° 227 59 14 4 0
03-20 31° 44° 243 64 14 4 0
03-21 35° 40° 259 70 14 4 0
2019Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
03-22 30° 42° 273 74 14 4 0
03-23 20° 47° 284 76 14 4 0
03-24 31° 55° 306 87 15 4 0
03-25 29° 43° 319 91 15 4 0
03-26 22° 44° 330 92 15 4 0
03-27 27° 54° 349 101 15 4 0
03-28 45° 66° 383 124 29 9 1
03-29 38° 55° 407 139 33 9 1
03-30 31° 44° 423 144 33 9 1
03-31 21° 33° 428 144 33 9 1
04-01 20° 44° 438 145 33 9 1
04-02 35° 57° 462 159 37 9 1
2019Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
04-03 38° 52° 485 172 40 9 1
04-04 34° 44° 503 179 40 9 1
04-05 34° 51° 523 189 41 9 1
04-06 34° 64° 551 207 48 9 1
04-07 45° 71° 587 233 64 17 4
04-08 55° 69° 627 263 84 29 11
04-09 44° 62° 657 283 95 32 11
04-10 34° 47° 676 292 95 32 11
04-11 32° 49° 694 301 95 32 11
04-12 43° 59° 724 320 104 33 11
04-13 36° 52° 746 332 106 33 11
04-14 32° 39° 759 335 106 33 11
2019Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
04-15 32° 51° 779 345 106 33 11
04-16 36° 65° 808 364 115 34 11
04-17 44° 60° 838 384 126 36 11
04-18 43° 64° 869 405 137 40 11
04-19 40° 42° 888 414 137 40 11
04-20 38° 51° 911 427 139 40 11
04-21 33° 71° 940 447 149 41 11
04-22 49° 75° 981 477 170 54 18
04-23 46° 66° 1015 501 183 60 19
04-24 34° 62° 1041 517 189 60 19
04-25 50° 65° 1076 543 205 67 21
04-26 49° 63° 1110 566 219 73 22
2019Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
04-27 35° 49° 1130 576 219 73 22
04-28 34° 55° 1153 589 222 73 22
04-29 40° 45° 1174 600 222 73 22
04-30 40° 49° 1196 613 225 73 22
05-01 44° 64° 1229 635 237 77 22
05-02 45° 58° 1258 655 247 79 22
05-03 43° 51° 1283 669 252 79 22
05-04 45° 64° 1316 692 265 84 22
05-05 41° 71° 1350 716 279 90 23
05-06 50° 72° 1389 745 298 101 29
05-07 40° 54° 1414 760 303 101 29
05-08 39° 57° 1440 776 309 101 29
2019Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
05-09 52° 74° 1481 807 330 114 37
05-10 45° 56° 1510 826 338 115 37
05-11 36° 52° 1532 838 341 115 37
05-12 41° 53° 1557 854 346 115 37
05-13 44° 55° 1585 871 354 115 37
05-14 36° 68° 1615 891 363 117 37
05-15 43° 72° 1650 916 379 124 40
05-16 46° 76° 1689 945 398 135 46
05-17 59° 67° 1730 976 419 148 54
05-18 48° 75° 1770 1006 438 160 60
05-19 59° 73° 1814 1040 462 175 71
05-20 44° 61° 1844 1060 473 178 71
2019Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
05-21 38° 61° 1872 1078 480 178 71
05-22 50° 72° 1911 1107 500 189 77
05-23 59° 74° 1955 1141 524 206 89
05-24 49° 64° 1990 1166 538 212 90
05-25 59° 81° 2038 1204 566 232 105
05-26 58° 71° 2080 1236 589 246 114
05-27 54° 75° 2122 1268 611 260 124
05-28 56° 67° 2162 1298 630 272 130
05-29 53° 67° 2200 1326 648 282 135
05-30 56° 67° 2239 1356 668 294 142
05-31 52° 80° 2283 1390 692 310 153
06-01 61° 72° 2328 1424 717 326 164
2019Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
06-02 52° 68° 2366 1452 735 336 169
06-03 42° 66° 2397 1474 746 340 169
06-04 47° 74° 2436 1502 765 350 175
06-05 64° 80° 2486 1542 794 372 192
06-06 58° 75° 2530 1576 819 388 203
06-07 55° 80° 2576 1612 845 406 216
06-08 55° 81° 2622 1648 871 424 229
06-09 63° 70° 2666 1683 895 441 240
06-10 55° 68° 2706 1712 914 452 247
06-11 49° 76° 2746 1743 935 465 254
06-12 57° 75° 2790 1776 959 480 265
06-13 51° 61° 2824 1800 973 486 266
2019Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
06-14 46° 74° 2862 1828 991 496 271
06-15 62° 71° 2906 1863 1015 513 282
06-16 54° 63° 2943 1889 1032 521 286
06-17 56° 68° 2983 1919 1051 533 293
06-18 61° 78° 3030 1956 1079 552 307
06-19 61° 77° 3077 1994 1106 572 321
06-20 57° 65° 3116 2022 1125 582 327
06-21 53° 74° 3158 2054 1146 596 336
06-22 53° 76° 3200 2087 1169 611 345
06-23 54° 80° 3246 2122 1195 628 358
06-24 64° 77° 3294 2160 1223 648 373
06-25 62° 81° 3344 2200 1252 670 390
2019Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
06-26 65° 83° 3396 2242 1284 694 409
06-27 63° 87° 3448 2285 1317 719 428
06-28 68° 86° 3503 2330 1352 746 450
06-29 69° 85° 3559 2375 1387 773 473
06-30 65° 83° 3611 2417 1419 797 492
07-01 66° 90° 3666 2462 1455 825 514
07-02 71° 88° 3724 2510 1492 854 539
07-03 71° 85° 3779 2555 1528 882 561
07-04 68° 87° 3835 2601 1564 909 584
07-05 71° 88° 3892 2648 1601 939 608
07-06 70° 85° 3948 2694 1636 966 631
07-07 63° 80° 3997 2734 1666 988 647
2019Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
07-08 53° 79° 4041 2767 1690 1004 658
07-09 56° 83° 4089 2805 1718 1023 673
07-10 63° 90° 4144 2850 1752 1050 695
07-11 65° 83° 4196 2892 1785 1074 714
07-12 57° 79° 4242 2928 1811 1092 727
07-13 62° 88° 4295 2971 1844 1117 747
07-14 60° 83° 4345 3011 1873 1139 764
07-15 63° 89° 4399 3055 1907 1165 785
07-16 71° 82° 4453 3099 1942 1192 806
07-17 69° 87° 4510 3146 1978 1220 830
07-18 70° 86° 4566 3192 2014 1248 853
07-19 78° 91° 4628 3245 2057 1283 882
2019Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
07-20 73° 93° 4690 3296 2098 1316 911
07-21 70° 79° 4742 3338 2131 1340 930
07-22 62° 75° 4789 3375 2158 1359 944
07-23 54° 77° 4832 3408 2181 1375 954
07-24 55° 78° 4877 3443 2205 1391 966
07-25 58° 83° 4925 3481 2234 1411 981
07-26 61° 84° 4976 3522 2265 1434 999
07-27 68° 86° 5031 3567 2300 1461 1021
07-28 72° 88° 5089 3615 2338 1492 1046
07-29 69° 82° 5143 3659 2372 1517 1067
07-30 67° 83° 5196 3702 2405 1542 1087
07-31 61° 77° 5243 3740 2432 1562 1101
2019Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
08-01 53° 80° 5288 3774 2456 1578 1113
08-02 52° 82° 5332 3809 2481 1595 1124
08-03 57° 85° 5381 3848 2510 1616 1140
08-04 61° 85° 5432 3888 2541 1639 1158
08-05 62° 86° 5484 3930 2573 1662 1177
08-06 68° 81° 5537 3973 2606 1687 1197
08-07 62° 84° 5588 4014 2637 1710 1215
08-08 63° 81° 5638 4054 2667 1732 1232
08-09 56° 79° 5683 4090 2692 1750 1244
08-10 54° 80° 5729 4125 2717 1767 1257
08-11 55° 84° 5776 4162 2745 1786 1271
08-12 69° 86° 5832 4208 2780 1814 1294
2019Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
08-13 69° 85° 5887 4253 2815 1841 1316
08-14 63° 80° 5936 4292 2845 1862 1332
08-15 61° 74° 5981 4328 2870 1880 1344
08-16 58° 81° 6029 4365 2898 1900 1359
08-17 65° 85° 6082 4408 2931 1924 1379
08-18 68° 82° 6135 4451 2964 1949 1399
08-19 65° 85° 6188 4494 2997 1974 1419
08-20 68° 84° 6242 4538 3031 2000 1440
08-21 66° 85° 6296 4582 3064 2026 1461
08-22 59° 75° 6341 4617 3089 2043 1473
08-23 50° 74° 6381 4647 3109 2055 1480
08-24 48° 74° 6420 4676 3128 2066 1486
2019Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
08-25 53° 77° 6463 4709 3151 2081 1496
08-26 58° 74° 6506 4743 3175 2097 1506
08-27 64° 80° 6557 4783 3206 2119 1524
08-28 57° 74° 6601 4817 3229 2135 1535
08-29 55° 82° 6647 4853 3256 2153 1548
08-30 59° 74° 6691 4888 3280 2170 1559
08-31 49° 73° 6730 4916 3299 2180 1565
09-01 57° 70° 6772 4948 3320 2194 1574
09-02 60° 80° 6820 4986 3348 2214 1589
09-03 60° 79° 6867 5024 3376 2234 1603
09-04 55° 70° 6908 5054 3397 2246 1611
09-05 48° 72° 6946 5082 3415 2256 1616
2019Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
09-06 56° 66° 6985 5111 3434 2267 1622
09-07 58° 73° 7029 5145 3457 2283 1633
09-08 54° 67° 7067 5173 3476 2294 1638
09-09 54° 71° 7108 5204 3496 2306 1646
09-10 63° 85° 7159 5246 3528 2330 1664
09-11 67° 88° 7215 5291 3564 2357 1687
09-12 62° 69° 7258 5325 3587 2373 1697
09-13 64° 82° 7309 5365 3618 2396 1715
09-14 57° 75° 7353 5400 3642 2412 1726
09-15 59° 73° 7397 5434 3666 2428 1737
09-16 64° 77° 7446 5472 3695 2448 1753
09-17 58° 73° 7489 5506 3718 2464 1763
2019Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
09-18 53° 81° 7534 5540 3743 2480 1775
09-19 58° 81° 7581 5578 3770 2500 1789
09-20 58° 83° 7630 5616 3798 2520 1805
09-21 63° 85° 7682 5658 3831 2544 1824
09-22 70° 84° 7737 5703 3865 2571 1846
09-23 57° 70° 7779 5735 3887 2585 1855
09-24 53° 76° 7821 5767 3910 2600 1864
09-25 61° 73° 7866 5802 3935 2616 1876
09-26 49° 69° 7903 5829 3952 2625 1880
09-27 49° 74° 7942 5859 3971 2637 1886
09-28 55° 65° 7981 5887 3990 2647 1892
09-29 52° 58° 8014 5910 4003 2652 1892
2019Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
09-30 58° 80° 8061 5948 4030 2672 1906

 

Latest Updates

May 19th, 2020Weather Data Interruption

We are currently experiencing problems with tracking growing degree days at GDDTracker.net. The weather feed we rely on from NOAA has been discontinued and is being migrated to a new server. We hope to be able to resume counting growing degree days in the next week or so. Thanks for your patience and understanding.
 

February 17th, 2020Welcome to the 2020 GDD Tracking Season

February 15th marked the start of our 3rd decade counting growing degree days here at GDDtracker.net. What started out as a couple models to schedule plant growth regulator applications to suppress annual bluegrass seedheads has expanded to include models for crabgrass germination, early season DMI fungicide applications, and most recently the Smith-Kerns dollar spot prediction model. We've been making some changes behind the scenes with the servers that continually process the immense amount of data collected daily to ensure system stability in the future. Thanks for your support as we look forward to the 2020 growing season.