“Flashback” to 2016

Please note you are viewing last year's map and info. Click here to return to 2017

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.

   
       

Relative Flowering Times for Broadleaf Weeds (GDD 50)
through Mon, Sep. 19. 2016

 

GDD Total: 2744 (Base 50) through Mon, Sep. 19, 2016

  

East Lansing, MI

       

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 2016 & 2017

2017Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
02-19 37° 62° 102 53 19 4 0
02-20 35° 57° 125 67 23 4 0
02-21 41° 61° 154 86 32 5 0
02-22 43° 60° 184 105 42 6 0
02-23 45° 58° 213 125 51 8 0
02-24 37° 57° 238 140 56 8 0
02-25 23° 42° 249 140 56 8 0
02-26 22° 42° 258 140 56 8 0
02-27 31° 50° 277 149 56 8 0
02-28 39° 55° 302 164 61 8 0
02-29 n/a n/a n/a n/a n/a n/a n/a
03-01 26° 55° 321 172 61 8 0
2017Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
03-02 22° 30° 325 172 61 8 0
03-03 16° 27° 325 172 61 8 0
03-04 12° 32° 325 172 61 8 0
03-05 23° 47° 338 175 61 8 0
03-06 42° 56° 365 192 68 8 0
03-07 40° 58° 392 209 76 8 0
03-08 39° 47° 413 221 77 8 0
03-09 31° 42° 428 225 77 8 0
03-10 16° 32° 430 225 77 8 0
03-11 14° 21° 430 225 77 8 0
03-12 13° 28° 430 225 77 8 0
03-13 19° 25° 430 225 77 8 0
2017Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
03-14 13° 22° 430 225 77 8 0
03-15 14° 31° 431 225 77 8 0
03-16 14° 40° 436 225 77 8 0
03-17 23° 35° 443 225 77 8 0
03-18 32° 38° 456 228 77 8 0
03-19 33° 43° 472 235 77 8 0
03-20 33° 53° 494 246 78 8 0
03-21 29° 52° 512 255 78 8 0
03-22 19° 35° 518 255 78 8 0
03-23 23° 45° 529 257 78 8 0
03-24 37° 72° 562 279 90 12 0
03-25 38° 44° 580 288 90 12 0
2017Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
03-26 39° 53° 605 302 95 12 0
03-27 48° 55° 634 322 104 14 0
03-28 40° 47° 656 333 106 14 0
03-29 30° 53° 676 343 106 14 0
03-30 36° 41° 692 349 106 14 0
03-31 36° 39° 707 355 106 14 0
04-01 32° 56° 730 367 108 14 0
04-02 32° 59° 753 381 112 14 0
04-03 46° 52° 781 398 119 14 0
04-04 44° 55° 808 415 126 14 0
04-05 37° 45° 827 424 126 14 0
04-06 33° 37° 840 427 126 14 0
2017Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
04-07 33° 52° 861 438 127 14 0
04-08 30° 60° 884 452 131 14 0
04-09 49° 75° 924 481 150 25 7
04-10 59° 72° 968 515 174 41 17
04-11 43° 57° 996 533 182 41 17
04-12 41° 57° 1023 550 189 41 17
04-13 44° 49° 1048 565 194 41 17
04-14 43° 64° 1080 587 206 45 17
04-15 50° 81° 1123 620 229 60 28
04-16 56° 70° 1164 651 250 73 36
04-17 42° 66° 1196 674 263 78 36
04-18 40° 69° 1229 696 275 82 36
2017Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
04-19 56° 72° 1271 728 297 96 45
04-20 48° 66° 1306 753 312 103 47
04-21 44° 53° 1333 770 319 103 47
04-22 37° 59° 1359 786 325 103 47
04-23 36° 68° 1389 806 335 105 47
04-24 40° 71° 1423 830 349 111 48
04-25 51° 73° 1463 860 369 123 55
04-26 58° 82° 1511 898 397 143 70
04-27 48° 67° 1546 924 413 151 73
04-28 45° 64° 1579 946 425 156 73
04-29 45° 56° 1608 965 434 156 73
04-30 40° 51° 1631 978 437 156 73
2017Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
05-01 44° 66° 1664 1001 450 161 73
05-02 41° 49° 1687 1014 453 161 73
05-03 35° 58° 1712 1029 458 161 73
05-04 43° 50° 1736 1043 462 161 73
05-05 42° 55° 1763 1060 469 161 73
05-06 39° 59° 1790 1077 476 161 73
05-07 35° 55° 1813 1090 479 161 73
05-08 30° 58° 1835 1102 481 161 73
05-09 31° 64° 1861 1118 487 161 73
05-10 45° 69° 1896 1143 502 168 75
05-11 46° 65° 1930 1167 516 174 76
05-12 41° 68° 1963 1190 529 179 76
2017Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
05-13 46° 72° 2000 1217 546 188 80
05-14 52° 70° 2038 1246 565 199 85
05-15 42° 74° 2075 1272 581 207 89
05-16 54° 76° 2118 1305 604 222 99
05-17 69° 85° 2172 1350 639 248 120
05-18 57° 85° 2221 1389 668 270 136
05-19 43° 55° 2248 1405 674 270 136
05-20 46° 63° 2280 1428 687 274 136
05-21 54° 72° 2321 1459 708 287 144
05-22 50° 68° 2359 1486 725 296 149
05-23 58° 68° 2400 1517 746 309 157
05-24 56° 65° 2438 1546 765 320 162
2017Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
05-25 56° 62° 2476 1573 782 329 167
05-26 55° 69° 2516 1603 802 341 174
05-27 57° 75° 2559 1636 825 357 184
05-28 58° 78° 2605 1672 851 375 197
05-29 55° 78° 2650 1707 876 391 209
05-30 52° 70° 2688 1735 894 402 214
05-31 51° 72° 2728 1765 914 413 221
06-01 50° 74° 2768 1795 934 425 228
06-02 50° 81° 2812 1829 958 441 239
06-03 49° 83° 2856 1863 982 457 250
06-04 63° 86° 2909 1906 1015 482 270
06-05 57° 70° 2950 1937 1036 495 278
2017Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
06-06 49° 72° 2989 1966 1055 506 284
06-07 49° 75° 3029 1996 1075 518 291
06-08 48° 79° 3071 2028 1097 532 300
06-09 57° 82° 3118 2065 1124 551 314
06-10 58° 86° 3168 2105 1154 573 331
06-11 69° 89° 3225 2152 1191 602 355
06-12 69° 91° 3283 2200 1229 632 380
06-13 73° 87° 3341 2248 1267 662 405
06-14 69° 87° 3397 2294 1303 690 428
06-15 67° 86° 3451 2339 1338 717 449
06-16 64° 82° 3502 2380 1369 740 467
06-17 67° 85° 3556 2424 1403 766 488
2017Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
06-18 65° 80° 3607 2464 1433 789 506
06-19 59° 75° 3652 2499 1458 805 518
06-20 57° 72° 3694 2531 1480 819 527
06-21 50° 76° 3735 2562 1501 832 535
06-22 60° 86° 3786 2603 1532 855 553
06-23 65° 77° 3835 2642 1561 876 569
06-24 60° 74° 3880 2677 1586 893 581
06-25 56° 69° 3920 2708 1607 906 588
06-26 53° 68° 3959 2736 1625 916 594
06-27 49° 71° 3997 2764 1643 926 599
06-28 52° 75° 4039 2796 1665 940 608
06-29 65° 84° 4092 2839 1698 965 628
2017Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
06-30 67° 79° 4143 2880 1729 988 646
07-01 68° 82° 4196 2923 1762 1013 666
07-02 61° 80° 4245 2962 1791 1034 682
07-03 63° 81° 4294 3001 1820 1055 698
07-04 57° 81° 4341 3038 1847 1074 712
07-05 57° 84° 4390 3077 1876 1095 728
07-06 60° 88° 4442 3119 1908 1119 747
07-07 65° 83° 4494 3161 1940 1143 766
07-08 61° 76° 4540 3197 1966 1161 779
07-09 55° 81° 4586 3233 1992 1179 792
07-10 66° 75° 4634 3272 2021 1200 807
07-11 67° 85° 4689 3316 2055 1226 829
2017Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
07-12 71° 81° 4743 3360 2089 1252 850
07-13 71° 80° 4796 3403 2122 1277 870
07-14 66° 77° 4845 3443 2152 1299 886
07-15 58° 79° 4892 3479 2178 1317 900
07-16 64° 77° 4941 3518 2207 1338 916
07-17 58° 79° 4987 3555 2234 1357 929
07-18 60° 85° 5038 3595 2264 1380 947
07-19 66° 88° 5093 3640 2299 1406 969
07-20 72° 84° 5149 3686 2335 1435 992
07-21 65° 85° 5202 3730 2369 1460 1012
07-22 71° 80° 5256 3773 2402 1485 1033
07-23 67° 84° 5309 3816 2435 1510 1053
2017Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
07-24 61° 74° 5355 3852 2461 1528 1066
07-25 52° 78° 5398 3886 2485 1544 1076
07-26 60° 81° 5447 3924 2513 1564 1092
07-27 65° 81° 5498 3965 2544 1587 1110
07-28 59° 78° 5544 4002 2571 1606 1123
07-29 52° 80° 5589 4036 2595 1622 1135
07-30 54° 83° 5635 4072 2621 1640 1148
07-31 55° 85° 5683 4110 2649 1660 1163
08-01 57° 85° 5732 4149 2678 1681 1179
08-02 63° 86° 5785 4192 2711 1706 1199
08-03 62° 82° 5835 4232 2741 1728 1216
08-04 58° 67° 5875 4262 2761 1740 1223
2017Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
08-05 53° 75° 5917 4294 2783 1754 1232
08-06 55° 76° 5960 4328 2807 1770 1242
08-07 58° 75° 6005 4362 2831 1786 1254
08-08 50° 82° 6049 4396 2855 1802 1265
08-09 57° 83° 6097 4434 2883 1822 1280
08-10 57° 83° 6145 4472 2911 1842 1295
08-11 63° 79° 6194 4511 2940 1863 1311
08-12 60° 75° 6240 4547 2966 1881 1324
08-13 54° 78° 6284 4581 2990 1897 1335
08-14 62° 82° 6334 4621 3020 1919 1352
08-15 63° 81° 6384 4661 3050 1941 1369
08-16 63° 85° 6436 4703 3082 1965 1388
2017Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
08-17 68° 81° 6488 4746 3115 1990 1407
08-18 63° 73° 6535 4782 3141 2008 1421
08-19 59° 79° 6582 4819 3168 2027 1435
08-20 55° 84° 6630 4857 3196 2047 1450
08-21 66° 87° 6684 4901 3230 2073 1471
08-22 60° 76° 6730 4938 3257 2092 1484
08-23 56° 73° 6773 4970 3279 2106 1494
08-24 48° 64° 6807 4994 3293 2113 1495
08-25 44° 71° 6843 5020 3309 2120 1498
08-26 46° 74° 6881 5048 3327 2130 1503
08-27 58° 77° 6926 5083 3352 2147 1515
08-28 60° 71° 6969 5117 3376 2163 1525
2017Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
08-29 56° 75° 7013 5150 3399 2179 1536
08-30 55° 80° 7059 5186 3425 2196 1549
08-31 55° 71° 7100 5217 3446 2209 1557
09-01 43° 68° 7133 5240 3459 2214 1557
09-02 43° 77° 7171 5268 3477 2224 1562
09-03 55° 79° 7216 5303 3502 2241 1574
09-04 57° 86° 7265 5343 3532 2263 1590
09-05 53° 69° 7305 5372 3551 2274 1597
09-06 42° 66° 7337 5394 3563 2278 1597
09-07 46° 61° 7368 5415 3574 2281 1597
09-08 50° 67° 7404 5441 3590 2289 1600
09-09 41° 66° 7436 5463 3602 2293 1600
2017Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
09-10 40° 70° 7468 5486 3615 2298 1600
09-11 43° 74° 7505 5512 3631 2306 1603
09-12 44° 78° 7544 5541 3650 2317 1610
09-13 50° 78° 7586 5573 3672 2331 1618
09-14 53° 79° 7630 5607 3696 2347 1630
09-15 53° 81° 7675 5642 3721 2365 1642
09-16 57° 84° 7724 5681 3750 2385 1657
09-17 60° 86° 7775 5722 3781 2408 1676
09-18 59° 78° 7821 5758 3807 2426 1689
09-19 59° 71° 7864 5791 3830 2442 1699
09-20 64° 82° 7915 5832 3861 2464 1717
09-21 66° 86° 7969 5876 3895 2490 1737
2017Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
09-22 67° 88° 8024 5922 3931 2518 1760
09-23 64° 87° 8078 5965 3964 2543 1781
09-24 63° 86° 8130 6008 3997 2568 1800
09-25 62° 84° 8181 6048 4027 2591 1818
09-26 60° 81° 8230 6087 4056 2611 1833
2016Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
02-19 33° 60° 30 15 5 0 0
02-20 37° 57° 55 29 9 0 0
02-21 33° 42° 70 35 9 0 0
02-22 28° 40° 82 37 9 0 0
02-23 19° 45° 92 37 9 0 0
02-24 29° 33° 101 37 9 0 0
02-25 25° 33° 108 37 9 0 0
02-26 16° 31° 109 37 9 0 0
02-27 24° 41° 120 37 9 0 0
02-28 40° 51° 143 51 13 0 0
02-29 25° 43° 155 53 13 0 0
03-01 20° 24° 155 53 13 0 0
2016Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
03-02 27° 155 53 13 0 0
03-03 -0° 28° 155 53 13 0 0
03-04 31° 155 53 13 0 0
03-05 25° 33° 162 53 13 0 0
03-06 14° 38° 166 53 13 0 0
03-07 39° 57° 192 69 19 0 0
03-08 49° 71° 230 97 36 10 5
03-09 57° 69° 271 128 57 23 13
03-10 43° 58° 299 146 66 23 13
03-11 32° 55° 321 157 67 23 13
03-12 30° 59° 343 170 70 23 13
03-13 45° 48° 367 184 74 23 13
2016Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
03-14 45° 53° 394 201 81 23 13
03-15 42° 57° 422 219 89 23 13
03-16 46° 56° 451 238 98 24 13
03-17 37° 49° 473 249 99 24 13
03-18 29° 46° 488 255 99 24 13
03-19 28° 42° 501 258 99 24 13
03-20 23° 43° 512 259 99 24 13
03-21 29° 46° 528 265 99 24 13
03-22 32° 60° 552 279 103 24 13
03-23 35° 47° 571 287 103 24 13
03-24 32° 45° 587 294 103 24 13
03-25 28° 43° 601 298 103 24 13
2016Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
03-26 29° 54° 620 307 103 24 13
03-27 32° 70° 649 326 112 25 13
03-28 35° 49° 669 336 112 25 13
03-29 30° 52° 688 345 112 25 13
03-30 34° 60° 713 360 118 25 13
03-31 49° 62° 746 383 131 31 13
04-01 38° 51° 769 396 134 31 13
04-02 25° 38° 779 396 134 31 13
04-03 19° 51° 792 399 134 31 13
04-04 27° 45° 806 403 134 31 13
04-05 19° 42° 815 403 134 31 13
04-06 33° 47° 832 411 134 31 13
2016Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
04-07 33° 41° 847 415 134 31 13
04-08 26° 39° 858 416 134 31 13
04-09 19° 33° 862 416 134 31 13
04-10 22° 37° 869 416 134 31 13
04-11 35° 53° 891 428 136 31 13
04-12 30° 47° 908 435 136 31 13
04-13 31° 53° 928 445 136 31 13
04-14 30° 61° 952 459 139 31 13
04-15 32° 71° 982 478 149 32 13
04-16 41° 77° 1019 505 166 41 17
04-17 36° 78° 1054 531 181 49 19
04-18 44° 82° 1095 562 203 62 28
2016Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
04-19 46° 62° 1127 583 214 65 28
04-20 46° 68° 1162 609 230 73 30
04-21 49° 63° 1196 633 244 79 31
04-22 48° 57° 1227 653 254 81 31
04-23 33° 58° 1251 667 258 81 31
04-24 38° 68° 1281 688 269 84 31
04-25 47° 77° 1322 718 289 97 38
04-26 40° 54° 1347 733 294 97 38
04-27 36° 61° 1374 750 301 97 38
04-28 39° 49° 1395 762 303 97 38
04-29 41° 52° 1420 776 307 97 38
04-30 37° 57° 1445 791 312 97 38
2016Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
05-01 45° 50° 1470 807 318 97 38
05-02 42° 53° 1496 823 324 97 38
05-03 37° 66° 1526 842 333 98 38
05-04 47° 54° 1554 861 342 99 38
05-05 45° 66° 1588 884 355 104 39
05-06 41° 72° 1623 909 370 111 41
05-07 51° 72° 1662 939 390 123 47
05-08 38° 68° 1693 960 401 126 47
05-09 34° 67° 1722 979 409 126 47
05-10 48° 54° 1751 998 419 128 47
05-11 51° 68° 1789 1025 436 137 52
05-12 57° 71° 1831 1057 458 151 61
2016Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
05-13 49° 66° 1866 1083 474 159 63
05-14 40° 51° 1890 1096 477 159 63
05-15 35° 48° 1909 1106 477 159 63
05-16 38° 68° 1940 1127 488 162 63
05-17 46° 64° 1973 1150 501 167 63
05-18 37° 66° 2003 1169 510 168 63
05-19 37° 71° 2034 1191 522 172 63
05-20 41° 72° 2069 1216 537 178 65
05-21 52° 74° 2110 1247 558 192 73
05-22 49° 72° 2149 1275 577 202 79
05-23 39° 78° 2186 1302 593 211 83
05-24 47° 86° 2230 1337 618 228 94
2016Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
05-25 62° 86° 2283 1379 650 252 114
05-26 63° 86° 2335 1422 683 276 133
05-27 61° 85° 2386 1463 714 300 151
05-28 66° 87° 2441 1508 749 327 173
05-29 66° 86° 2495 1552 783 353 194
05-30 60° 84° 2545 1592 813 375 211
05-31 50° 84° 2590 1627 838 392 223
06-01 59° 80° 2638 1665 866 411 238
06-02 61° 82° 2687 1704 895 433 254
06-03 51° 81° 2731 1738 919 449 265
06-04 57° 84° 2780 1776 948 469 281
06-05 62° 70° 2824 1810 971 485 291
2016Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
06-06 55° 79° 2869 1845 996 502 304
06-07 51° 63° 2904 1870 1012 509 306
06-08 44° 71° 2939 1896 1027 517 308
06-09 43° 71° 2974 1921 1042 523 310
06-10 56° 87° 3024 1960 1071 545 326
06-11 71° 93° 3083 2010 1111 577 353
06-12 57° 80° 3130 2046 1137 595 367
06-13 48° 75° 3169 2076 1157 606 373
06-14 60° 78° 3216 2113 1184 625 387
06-15 61° 86° 3268 2154 1216 649 406
06-16 63° 72° 3313 2190 1241 666 418
06-17 55° 87° 3362 2229 1270 688 434
2016Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
06-18 54° 89° 3412 2268 1300 709 451
06-19 57° 91° 3464 2311 1332 734 470
06-20 70° 90° 3522 2359 1370 764 495
06-21 55° 83° 3569 2396 1397 782 509
06-22 56° 83° 3617 2433 1424 802 523
06-23 62° 79° 3665 2472 1453 823 539
06-24 54° 84° 3712 2509 1480 842 553
06-25 55° 89° 3762 2549 1510 864 570
06-26 68° 89° 3819 2596 1547 892 594
06-27 65° 92° 3876 2642 1583 921 617
06-28 54° 68° 3914 2671 1602 932 623
06-29 45° 80° 3955 2702 1623 944 631
2016Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
06-30 48° 83° 3998 2735 1646 960 641
07-01 57° 74° 4042 2769 1670 976 652
07-02 48° 80° 4084 2801 1692 990 661
07-03 49° 81° 4127 2834 1715 1005 671
07-04 50° 82° 4172 2868 1739 1021 683
07-05 65° 88° 4226 2913 1774 1047 704
07-06 64° 90° 4281 2958 1809 1074 726
07-07 64° 91° 4336 3003 1844 1102 748
07-08 66° 91° 4393 3050 1881 1130 772
07-09 63° 78° 4442 3088 1909 1151 787
07-10 56° 84° 4489 3126 1937 1171 802
07-11 63° 85° 4542 3168 1969 1195 821
2016Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
07-12 67° 94° 4600 3217 2008 1226 847
07-13 70° 88° 4657 3264 2045 1255 871
07-14 69° 88° 4714 3310 2081 1283 894
07-15 63° 77° 4761 3348 2109 1303 909
07-16 60° 78° 4808 3385 2136 1322 923
07-17 52° 87° 4855 3422 2163 1341 937
07-18 68° 86° 4911 3467 2198 1368 959
07-19 59° 86° 4961 3508 2229 1390 977
07-20 59° 91° 5014 3550 2262 1415 997
07-21 66° 90° 5070 3597 2298 1443 1020
07-22 74° 92° 5131 3648 2339 1477 1048
07-23 71° 93° 5191 3698 2379 1509 1075
2016Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
07-24 69° 86° 5247 3743 2414 1536 1098
07-25 71° 89° 5305 3791 2453 1566 1123
07-26 60° 88° 5357 3834 2485 1590 1142
07-27 62° 90° 5411 3878 2519 1616 1163
07-28 61° 86° 5462 3919 2550 1640 1181
07-29 65° 80° 5513 3959 2580 1662 1199
07-30 63° 70° 5557 3994 2605 1679 1210
07-31 64° 78° 5606 4033 2634 1700 1226
08-01 58° 86° 5656 4073 2664 1722 1243
08-02 61° 85° 5708 4114 2695 1745 1261
08-03 62° 90° 5761 4158 2729 1771 1282
08-04 64° 92° 5818 4204 2766 1799 1306
2016Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
08-05 69° 87° 5874 4251 2802 1828 1329
08-06 59° 86° 5925 4291 2832 1850 1346
08-07 59° 82° 5973 4329 2861 1870 1362
08-08 52° 85° 6019 4366 2887 1889 1375
08-09 54° 88° 6068 4405 2916 1909 1391
08-10 60° 92° 6122 4449 2950 1936 1412
08-11 70° 93° 6182 4498 2990 1967 1439
08-12 75° 91° 6243 4549 3030 2000 1467
08-13 72° 84° 6299 4595 3067 2028 1490
08-14 67° 82° 6351 4638 3099 2053 1509
08-15 63° 81° 6401 4678 3129 2075 1526
08-16 69° 83° 6455 4722 3163 2101 1547
2016Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
08-17 65° 83° 6507 4764 3195 2125 1566
08-18 61° 84° 6558 4804 3226 2147 1584
08-19 67° 81° 6610 4847 3258 2172 1603
08-20 67° 81° 6662 4889 3290 2195 1622
08-21 60° 73° 6707 4923 3314 2212 1633
08-22 52° 76° 6749 4956 3337 2226 1643
08-23 55° 61° 6785 4981 3352 2234 1645
08-24 73° 79° 6839 5025 3386 2260 1666
08-25 68° 82° 6891 5068 3419 2285 1686
08-26 60° 81° 6940 5107 3448 2305 1702
08-27 64° 70° 6985 5141 3472 2322 1714
08-28 68° 83° 7038 5185 3506 2348 1734
2016Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
08-29 63° 83° 7089 5225 3537 2370 1752
08-30 66° 81° 7140 5267 3568 2394 1770
08-31 64° 75° 7188 5304 3596 2413 1785
09-01 56° 71° 7230 5336 3617 2427 1793
09-02 53° 72° 7270 5367 3638 2440 1801
09-03 48° 75° 7310 5397 3658 2451 1808
09-04 51° 78° 7353 5429 3680 2466 1818
09-05 57° 85° 7402 5469 3710 2487 1834
09-06 71° 90° 7460 5517 3748 2518 1859
09-07 73° 84° 7517 5563 3785 2546 1883
09-08 69° 79° 7569 5605 3816 2570 1901
09-09 65° 79° 7619 5645 3846 2592 1918
2016Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
09-10 61° 72° 7663 5679 3871 2608 1930
09-11 53° 70° 7702 5709 3890 2619 1936
09-12 52° 74° 7743 5740 3911 2633 1944
09-13 56° 80° 7789 5776 3937 2651 1957
09-14 57° 71° 7832 5808 3959 2665 1966
09-15 50° 71° 7870 5837 3978 2675 1972
09-16 53° 78° 7914 5870 4001 2691 1982
09-17 64° 76° 7962 5908 4029 2711 1997
09-18 58° 76° 8007 5943 4054 2728 2010
09-19 51° 81° 8051 5978 4079 2744 2021
09-20 60° 79° 8098 6015 4106 2764 2035
09-21 54° 79° 8143 6050 4131 2781 2047
2016Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
09-22 62° 72° 8188 6085 4156 2798 2059
09-23 59° 69° 8230 6117 4178 2811 2068
09-24 52° 68° 8268 6144 4195 2821 2072
09-25 49° 74° 8307 6174 4215 2833 2079
09-26 59° 66° 8348 6204 4236 2845 2087
09-27 50° 65° 8383 6230 4251 2853 2089
09-28 50° 62° 8418 6254 4265 2859 2090
09-29 56° 60° 8454 6280 4282 2867 2094
09-30 58° 60° 8491 6307 4298 2876 2098

 

Latest Updates

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.