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Relative Flowering Times for Broadleaf Weeds (GDD 50)
through Tue, Dec. 11. 2018

 
  

MI

       

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 35° 44° 48 14 0 0 0
02-20 40° 59° 76 31 7 0 0
02-21 29° 38° 87 33 7 0 0
02-22 29° 38° 98 34 7 0 0
02-23 32° 42° 113 39 7 0 0
02-24 32° 40° 127 43 7 0 0
02-25 33° 43° 143 49 7 0 0
02-26 28° 49° 159 55 7 0 0
02-27 35° 58° 184 70 12 0 0
02-28 40° 58° 211 87 19 0 0
03-01 32° 40° 225 91 19 0 0
03-02 26° 44° 238 94 19 0 0
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
03-03 24° 43° 250 95 19 0 0
03-04 26° 42° 261 97 19 0 0
03-05 27° 36° 271 97 19 0 0
03-06 28° 36° 281 97 19 0 0
03-07 23° 31° 286 97 19 0 0
03-08 20° 30° 289 97 19 0 0
03-09 24° 33° 295 97 19 0 0
03-10 16° 35° 299 97 19 0 0
03-11 19° 38° 306 97 19 0 0
03-12 26° 38° 315 97 19 0 0
03-13 25° 32° 322 97 19 0 0
03-14 23° 38° 330 97 19 0 0
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
03-15 23° 35° 337 97 19 0 0
03-16 20° 40° 345 97 19 0 0
03-17 22° 50° 359 101 19 0 0
03-18 26° 55° 378 109 19 0 0
03-19 25° 43° 389 111 19 0 0
03-20 21° 38° 397 111 19 0 0
03-21 25° 41° 408 112 19 0 0
03-22 22° 45° 419 113 19 0 0
03-23 23° 44° 431 115 19 0 0
03-24 25° 39° 440 115 19 0 0
03-25 22° 40° 450 115 19 0 0
03-26 25° 54° 467 122 19 0 0
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
03-27 41° 50° 491 136 22 0 0
03-28 36° 48° 511 146 23 0 0
03-29 37° 50° 533 158 24 0 0
03-30 30° 46° 549 163 24 0 0
03-31 31° 45° 565 170 24 0 0
04-01 24° 34° 572 170 24 0 0
04-02 19° 42° 580 170 24 0 0
04-03 33° 37° 593 172 24 0 0
04-04 23° 33° 599 172 24 0 0
04-05 19° 37° 605 172 24 0 0
04-06 25° 35° 613 172 24 0 0
04-07 20° 29° 616 172 24 0 0
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
04-08 16° 37° 621 172 24 0 0
04-09 30° 40° 634 175 24 0 0
04-10 23° 44° 645 177 24 0 0
04-11 34° 54° 667 189 26 0 0
04-12 43° 65° 699 211 38 4 0
04-13 37° 44° 718 219 38 4 0
04-14 28° 37° 728 220 38 4 0
04-15 28° 33° 737 220 38 4 0
04-16 30° 34° 746 220 38 4 0
04-17 25° 32° 753 220 38 4 0
04-18 29° 40° 766 222 38 4 0
04-19 30° 53° 785 232 38 4 0
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
04-20 30° 58° 807 244 40 4 0
04-21 31° 58° 830 257 43 4 0
04-22 32° 64° 856 273 49 4 0
04-23 39° 72° 889 296 62 9 0
04-24 53° 61° 925 321 78 17 3
04-25 43° 59° 954 341 87 18 3
04-26 32° 63° 980 356 93 18 3
04-27 42° 58° 1008 374 101 18 3
04-28 36° 54° 1031 387 104 18 3
04-29 25° 60° 1051 398 104 18 3
04-30 29° 73° 1080 417 113 19 3
05-01 60° 82° 1130 456 143 41 19
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
05-02 65° 83° 1182 498 175 65 38
05-03 58° 67° 1223 529 196 77 46
05-04 55° 66° 1261 557 214 88 51
05-05 52° 80° 1305 591 238 103 62
05-06 50° 66° 1341 617 254 112 65
05-07 41° 72° 1375 642 268 118 66
05-08 51° 79° 1418 675 291 133 76
05-09 55° 79° 1463 709 316 150 88
05-10 52° 64° 1499 736 332 158 91
05-11 39° 49° 1522 748 335 158 91
05-12 41° 56° 1548 765 341 158 91
05-13 46° 62° 1580 787 353 162 91
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
05-14 51° 71° 1619 816 372 173 97
05-15 59° 75° 1664 851 397 190 109
05-16 51° 79° 1708 884 421 205 120
05-17 49° 77° 1749 915 442 219 128
05-18 48° 76° 1789 945 462 230 135
05-19 54° 65° 1826 973 479 240 139
05-20 51° 59° 1859 996 492 245 139
05-21 47° 59° 1890 1017 503 248 139
05-22 52° 64° 1926 1042 519 255 142
05-23 46° 79° 1966 1073 539 268 149
05-24 51° 83° 2011 1108 564 285 161
05-25 61° 86° 2063 1149 596 308 180
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
05-26 68° 85° 2117 1194 630 335 201
05-27 62° 92° 2172 1238 665 362 223
05-28 63° 93° 2228 1284 701 390 246
05-29 68° 92° 2286 1332 739 420 271
05-30 68° 87° 2341 1378 774 447 294
05-31 71° 84° 2397 1424 810 475 316
06-01 66° 81° 2448 1465 841 498 335
06-02 56° 67° 2488 1494 861 509 341
06-03 57° 70° 2529 1526 882 523 349
06-04 54° 71° 2570 1556 903 535 357
06-05 55° 67° 2609 1585 922 547 363
06-06 46° 72° 2646 1612 939 556 367
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
06-07 53° 81° 2691 1648 964 573 380
06-08 59° 80° 2739 1686 992 593 394
06-09 59° 69° 2781 1718 1014 607 404
06-10 58° 67° 2822 1749 1035 620 411
06-11 57° 79° 2868 1785 1061 638 424
06-12 59° 79° 2915 1822 1088 657 438
06-13 61° 78° 2962 1859 1115 676 453
06-14 55° 83° 3010 1896 1143 695 467
06-15 58° 82° 3057 1934 1170 715 482
06-16 67° 82° 3110 1976 1203 739 501
06-17 70° 93° 3169 2025 1242 770 527
06-18 73° 89° 3228 2075 1281 802 553
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
06-19 67° 73° 3276 2112 1309 821 568
06-20 60° 73° 3320 2147 1333 838 580
06-21 58° 75° 3365 2181 1358 855 591
06-22 58° 74° 3409 2215 1382 870 602
06-23 62° 72° 3454 2250 1407 887 614
06-24 61° 74° 3499 2285 1432 905 626
06-25 57° 76° 3543 2320 1456 921 638
06-26 54° 81° 3589 2355 1482 939 650
06-27 65° 77° 3638 2394 1511 959 666
06-28 60° 84° 3688 2434 1541 981 683
06-29 63° 92° 3743 2480 1576 1009 705
06-30 79° 93° 3807 2534 1620 1045 736
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
07-01 74° 93° 3869 2586 1662 1079 765
07-02 69° 85° 3924 2631 1697 1106 787
07-03 61° 91° 3978 2675 1731 1132 808
07-04 72° 91° 4038 2725 1771 1164 835
07-05 76° 90° 4099 2776 1812 1197 863
07-06 60° 78° 4146 2812 1839 1216 877
07-07 53° 82° 4191 2848 1864 1233 890
07-08 55° 86° 4240 2887 1893 1254 905
07-09 58° 86° 4290 2927 1923 1276 922
07-10 69° 86° 4346 2972 1959 1304 945
07-11 60° 84° 4396 3013 1989 1326 962
07-12 59° 83° 4445 3052 2018 1347 979
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
07-13 67° 90° 4502 3098 2055 1375 1002
07-14 72° 81° 4556 3143 2089 1402 1023
07-15 64° 89° 4611 3188 2124 1429 1045
07-16 70° 89° 4668 3235 2161 1458 1070
07-17 61° 80° 4717 3274 2190 1479 1085
07-18 53° 80° 4761 3308 2214 1495 1097
07-19 55° 85° 4810 3346 2243 1515 1112
07-20 67° 82° 4862 3388 2275 1539 1131
07-21 66° 76° 4911 3427 2304 1560 1147
07-22 65° 73° 4958 3465 2331 1580 1161
07-23 64° 73° 5005 3501 2358 1598 1175
07-24 65° 83° 5056 3543 2389 1622 1194
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
07-25 63° 86° 5109 3585 2422 1646 1213
07-26 65° 79° 5159 3625 2452 1668 1230
07-27 58° 72° 5201 3658 2474 1683 1239
07-28 55° 78° 5246 3692 2499 1699 1251
07-29 53° 79° 5290 3727 2523 1716 1262
07-30 57° 82° 5337 3764 2550 1735 1277
07-31 58° 78° 5383 3800 2576 1753 1290
08-01 62° 82° 5434 3840 2607 1775 1307
08-02 64° 85° 5486 3883 2639 1800 1326
08-03 62° 83° 5536 3923 2669 1822 1344
08-04 58° 91° 5589 3966 2702 1847 1363
08-05 71° 91° 5648 4015 2741 1878 1389
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
08-06 68° 80° 5700 4057 2773 1902 1408
08-07 65° 82° 5752 4098 2805 1925 1427
08-08 67° 82° 5804 4141 2837 1950 1447
08-09 64° 83° 5856 4183 2869 1974 1465
08-10 64° 83° 5908 4224 2901 1998 1484
08-11 59° 87° 5958 4265 2931 2020 1502
08-12 62° 86° 6011 4307 2964 2044 1521
08-13 61° 86° 6062 4349 2995 2068 1539
08-14 59° 89° 6114 4391 3027 2092 1558
08-15 65° 87° 6168 4434 3061 2117 1579
08-16 66° 84° 6221 4477 3094 2143 1599
08-17 68° 78° 6272 4518 3125 2165 1617
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
08-18 64° 82° 6322 4559 3155 2188 1635
08-19 65° 82° 6374 4600 3187 2212 1653
08-20 64° 80° 6424 4640 3217 2233 1670
08-21 65° 77° 6473 4679 3246 2255 1686
08-22 55° 77° 6517 4714 3270 2271 1697
08-23 53° 80° 6561 4748 3294 2287 1709
08-24 56° 77° 6606 4783 3319 2304 1720
08-25 64° 76° 6654 4821 3347 2324 1735
08-26 68° 87° 6710 4866 3383 2351 1758
08-27 67° 87° 6765 4911 3418 2378 1780
08-28 65° 85° 6818 4954 3451 2404 1800
08-29 58° 72° 6861 4987 3474 2419 1810
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
08-30 50° 71° 6899 5016 3492 2429 1816
08-31 55° 81° 6945 5052 3518 2447 1829
09-01 69° 77° 6997 5093 3550 2470 1847
09-02 68° 85° 7051 5138 3584 2497 1868
09-03 69° 79° 7103 5180 3616 2521 1887
09-04 69° 88° 7159 5226 3652 2549 1911
09-05 71° 87° 7216 5273 3689 2578 1934
09-06 60° 71° 7259 5306 3712 2593 1944
09-07 54° 68° 7298 5335 3731 2604 1950
09-08 55° 67° 7337 5364 3750 2615 1956
09-09 52° 66° 7374 5391 3767 2624 1960
09-10 54° 70° 7414 5421 3787 2636 1967
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
09-11 48° 76° 7454 5451 3807 2648 1974
09-12 52° 79° 7498 5485 3831 2664 1985
09-13 54° 77° 7542 5518 3855 2680 1996
09-14 58° 81° 7589 5556 3882 2699 2010
09-15 56° 82° 7636 5593 3909 2718 2024
09-16 63° 85° 7688 5635 3941 2742 2044
09-17 61° 88° 7740 5677 3973 2766 2063
09-18 63° 80° 7790 5716 4003 2787 2079
09-19 57° 75° 7834 5751 4027 2804 2090
09-20 64° 82° 7885 5792 4058 2827 2108
09-21 57° 78° 7930 5827 4083 2844 2121
09-22 44° 63° 7962 5849 4095 2848 2121
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
09-23 43° 70° 7997 5873 4110 2854 2122
09-24 49° 70° 8035 5901 4128 2864 2127
09-25 65° 79° 8085 5941 4158 2886 2144
09-26 48° 66° 8120 5967 4173 2894 2146
09-27 47° 64° 8154 5990 4187 2899 2147
09-28 48° 60° 8185 6012 4198 2903 2147
09-29 40° 57° 8212 6029 4205 2903 2147
09-30 41° 49° 8235 6042 4208 2903 2147
2017Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
02-19 33° 61° 90 43 11 0 0
02-20 37° 60° 116 59 17 0 0
02-21 47° 56° 146 79 27 2 0
02-22 44° 64° 178 101 39 6 0
02-23 39° 57° 204 117 46 6 0
02-24 32° 43° 220 123 46 6 0
02-25 21° 38° 227 123 46 6 0
02-26 18° 41° 235 123 46 6 0
02-27 29° 50° 252 130 46 6 0
02-28 37° 54° 275 144 49 6 0
03-01 26° 51° 292 151 49 6 0
03-02 23° 30° 297 151 49 6 0
2017Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
03-03 14° 25° 297 151 49 6 0
03-04 11° 32° 297 151 49 6 0
03-05 25° 48° 311 155 49 6 0
03-06 45° 58° 340 174 58 7 0
03-07 39° 59° 368 192 66 7 0
03-08 35° 44° 385 200 66 7 0
03-09 30° 39° 398 202 66 7 0
03-10 15° 30° 398 202 66 7 0
03-11 15° 19° 398 202 66 7 0
03-12 14° 29° 398 202 66 7 0
03-13 18° 26° 398 202 66 7 0
03-14 14° 25° 398 202 66 7 0
2017Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
03-15 14° 31° 399 202 66 7 0
03-16 14° 40° 404 202 66 7 0
03-17 22° 34° 410 202 66 7 0
03-18 33° 39° 424 207 66 7 0
03-19 33° 47° 442 215 66 7 0
03-20 37° 57° 467 230 71 7 0
03-21 26° 48° 483 235 71 7 0
03-22 15° 36° 486 235 71 7 0
03-23 22° 46° 498 237 71 7 0
03-24 39° 66° 529 258 81 10 0
03-25 36° 43° 547 266 81 10 0
03-26 38° 51° 569 278 84 10 0
2017Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
03-27 41° 50° 593 292 88 10 0
03-28 40° 51° 617 306 91 10 0
03-29 31° 53° 637 316 91 10 0
03-30 34° 39° 651 321 91 10 0
03-31 34° 38° 666 325 91 10 0
04-01 31° 59° 689 338 94 10 0
04-02 32° 58° 712 351 97 10 0
04-03 46° 53° 739 368 105 10 0
04-04 39° 49° 761 380 106 10 0
04-05 33° 43° 777 386 106 10 0
04-06 34° 41° 793 392 106 10 0
04-07 34° 54° 815 404 109 10 0
2017Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
04-08 29° 64° 839 419 113 10 0
04-09 51° 77° 882 451 135 24 9
04-10 57° 77° 927 486 161 41 21
04-11 42° 55° 954 503 167 41 21
04-12 41° 58° 981 520 175 41 21
04-13 44° 48° 1005 534 179 41 21
04-14 40° 65° 1036 555 189 44 21
04-15 50° 81° 1079 588 213 59 32
04-16 54° 71° 1120 619 233 72 39
04-17 41° 65° 1151 640 244 75 39
04-18 42° 71° 1185 664 259 81 41
04-19 55° 71° 1226 695 280 94 49
2017Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
04-20 46° 61° 1257 716 291 97 49
04-21 42° 50° 1281 730 295 97 49
04-22 35° 63° 1308 747 302 97 49
04-23 35° 69° 1338 767 312 99 49
04-24 41° 72° 1372 792 326 106 50
04-25 49° 75° 1412 821 346 118 57
04-26 59° 80° 1460 859 373 137 71
04-27 43° 65° 1492 881 386 141 71
04-28 42° 61° 1522 901 395 143 71
04-29 44° 56° 1550 919 403 143 71
04-30 40° 43° 1569 929 403 143 71
05-01 42° 60° 1598 947 412 144 71
2017Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
05-02 40° 48° 1620 959 414 144 71
05-03 32° 59° 1644 973 418 144 71
05-04 44° 50° 1669 988 423 144 71
05-05 39° 61° 1697 1006 430 144 71
05-06 38° 60° 1724 1023 438 144 71
05-07 35° 53° 1746 1035 440 144 71
05-08 29° 57° 1767 1046 441 144 71
05-09 31° 63° 1792 1062 446 144 71
05-10 43° 70° 1827 1086 461 150 73
05-11 47° 67° 1862 1111 476 157 75
05-12 45° 70° 1897 1136 491 165 77
05-13 46° 73° 1935 1164 509 174 82
2017Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
05-14 52° 72° 1975 1194 528 186 89
05-15 46° 75° 2013 1222 547 197 94
05-16 59° 77° 2059 1258 573 215 107
05-17 70° 85° 2115 1304 609 242 130
05-18 49° 75° 2155 1334 629 254 137
05-19 41° 53° 2180 1349 634 254 137
05-20 46° 62° 2212 1371 646 258 137
05-21 52° 68° 2250 1399 664 268 142
05-22 49° 65° 2285 1424 679 275 144
05-23 57° 68° 2326 1455 700 288 152
05-24 56° 67° 2365 1485 719 300 158
05-25 56° 65° 2404 1513 738 310 164
2017Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
05-26 51° 70° 2443 1542 756 321 170
05-27 56° 77° 2487 1576 781 337 181
05-28 58° 75° 2532 1611 805 354 193
05-29 52° 72° 2572 1641 826 366 200
05-30 51° 68° 2609 1669 843 376 204
05-31 50° 71° 2648 1697 862 386 210
06-01 50° 73° 2688 1727 882 398 217
06-02 50° 80° 2731 1760 905 413 227
06-03 55° 78° 2776 1795 930 430 239
06-04 64° 84° 2828 1837 962 454 258
06-05 57° 74° 2872 1871 986 470 269
06-06 50° 76° 2913 1902 1007 483 277
2017Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
06-07 50° 77° 2954 1933 1028 497 285
06-08 52° 80° 2998 1967 1052 512 296
06-09 61° 82° 3047 2006 1081 534 312
06-10 57° 88° 3098 2047 1112 556 330
06-11 72° 89° 3157 2096 1150 587 356
06-12 73° 93° 3217 2147 1191 620 384
06-13 70° 88° 3275 2194 1228 649 408
06-14 65° 90° 3330 2239 1264 677 430
06-15 68° 85° 3385 2284 1299 703 452
06-16 66° 82° 3437 2326 1331 727 471
06-17 66° 77° 3486 2366 1360 749 487
06-18 67° 76° 3536 2405 1390 770 504
2017Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
06-19 59° 75° 3581 2440 1415 787 516
06-20 57° 72° 3623 2472 1437 801 525
06-21 50° 76° 3664 2503 1458 814 533
06-22 60° 86° 3715 2544 1489 837 551
06-23 67° 78° 3765 2584 1519 859 568
06-24 59° 72° 3808 2618 1542 875 579
06-25 53° 67° 3847 2646 1561 885 584
06-26 52° 67° 3884 2673 1578 894 588
06-27 47° 72° 3921 2700 1595 904 592
06-28 52° 75° 3963 2732 1617 917 601
06-29 62° 80° 4012 2771 1646 938 617
06-30 63° 80° 4061 2811 1675 960 634
2017Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
07-01 67° 81° 4113 2852 1707 984 652
07-02 61° 77° 4160 2889 1734 1003 666
07-03 59° 79° 4208 2927 1761 1022 681
07-04 57° 82° 4255 2964 1789 1041 695
07-05 59° 85° 4305 3004 1819 1063 712
07-06 62° 88° 4358 3047 1852 1088 732
07-07 64° 84° 4410 3089 1884 1113 751
07-08 58° 76° 4455 3125 1909 1130 763
07-09 54° 80° 4501 3160 1935 1147 776
07-10 66° 77° 4550 3200 1964 1169 792
07-11 62° 87° 4603 3242 1997 1193 812
07-12 69° 81° 4656 3285 2030 1218 832
2017Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
07-13 69° 81° 4709 3328 2063 1243 852
07-14 63° 74° 4755 3365 2089 1262 865
07-15 55° 78° 4800 3399 2114 1278 877
07-16 64° 79° 4850 3439 2144 1300 894
07-17 58° 79° 4896 3475 2170 1318 907
07-18 59° 84° 4946 3515 2199 1340 924
07-19 65° 88° 5000 3560 2234 1367 945
07-20 69° 83° 5055 3604 2269 1393 967
07-21 62° 87° 5107 3646 2301 1418 986
07-22 70° 80° 5160 3689 2334 1442 1006
07-23 68° 83° 5214 3733 2367 1468 1027
07-24 61° 77° 5261 3770 2394 1487 1041
2017Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
07-25 55° 81° 5306 3805 2420 1504 1053
07-26 62° 84° 5357 3846 2451 1527 1071
07-27 68° 83° 5410 3889 2484 1553 1091
07-28 62° 80° 5459 3928 2513 1573 1107
07-29 52° 82° 5504 3963 2538 1590 1119
07-30 56° 84° 5552 4001 2566 1610 1134
07-31 54° 86° 5600 4039 2594 1630 1149
08-01 57° 84° 5649 4078 2623 1651 1165
08-02 62° 86° 5701 4120 2654 1675 1184
08-03 63° 80° 5750 4159 2684 1696 1200
08-04 58° 67° 5791 4190 2705 1709 1208
08-05 51° 74° 5831 4220 2725 1722 1215
2017Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
08-06 55° 76° 5875 4254 2749 1737 1226
08-07 59° 76° 5920 4290 2774 1755 1238
08-08 52° 81° 5965 4324 2799 1771 1250
08-09 56° 82° 6012 4361 2826 1790 1264
08-10 59° 82° 6060 4399 2854 1811 1279
08-11 61° 75° 6106 4435 2880 1828 1292
08-12 61° 76° 6153 4472 2907 1847 1306
08-13 50° 78° 6195 4504 2929 1861 1315
08-14 61° 81° 6244 4543 2958 1882 1331
08-15 61° 82° 6294 4583 2988 1904 1348
08-16 59° 85° 6344 4623 3018 1926 1365
08-17 68° 79° 6395 4665 3049 1950 1383
2017Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
08-18 64° 72° 6441 4700 3075 1967 1396
08-19 60° 80° 6489 4738 3103 1987 1411
08-20 55° 83° 6536 4775 3130 2006 1425
08-21 65° 84° 6589 4818 3163 2031 1445
08-22 60° 75° 6634 4853 3188 2048 1457
08-23 55° 72° 6676 4885 3209 2062 1466
08-24 49° 67° 6711 4910 3225 2069 1468
08-25 46° 70° 6747 4936 3241 2078 1471
08-26 46° 74° 6785 4964 3259 2087 1476
08-27 58° 73° 6828 4998 3282 2103 1487
08-28 59° 70° 6871 5030 3305 2117 1496
08-29 55° 76° 6914 5064 3328 2133 1507
2017Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
08-30 53° 79° 6958 5097 3352 2149 1517
08-31 56° 71° 6999 5129 3373 2162 1525
09-01 45° 69° 7034 5153 3388 2168 1527
09-02 42° 74° 7070 5179 3404 2176 1530
09-03 53° 78° 7113 5213 3427 2192 1540
09-04 56° 76° 7157 5247 3451 2208 1551
09-05 49° 65° 7193 5272 3467 2215 1554
09-06 41° 63° 7223 5292 3477 2217 1554
09-07 45° 58° 7252 5312 3486 2219 1554
09-08 48° 67° 7288 5338 3502 2227 1557
09-09 43° 67° 7321 5360 3515 2231 1557
09-10 42° 68° 7354 5383 3528 2236 1557
2017Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
09-11 42° 73° 7390 5409 3543 2244 1559
09-12 44° 80° 7430 5439 3564 2256 1567
09-13 48° 76° 7470 5469 3584 2268 1574
09-14 57° 77° 7515 5504 3608 2285 1585
09-15 52° 83° 7560 5539 3634 2302 1598
09-16 56° 85° 7608 5577 3662 2322 1613
09-17 63° 88° 7661 5620 3695 2347 1633
09-18 57° 77° 7706 5655 3720 2365 1645
09-19 59° 74° 7751 5690 3745 2381 1656
09-20 66° 87° 7805 5734 3779 2407 1678
09-21 69° 91° 7863 5782 3817 2437 1703
09-22 64° 93° 7920 5829 3853 2466 1726
2017Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
09-23 66° 93° 7977 5876 3891 2495 1751
09-24 62° 92° 8032 5921 3926 2522 1773
09-25 62° 88° 8085 5964 3959 2547 1793
09-26 60° 89° 8138 6007 3991 2572 1812
09-27 55° 72° 8179 6038 4013 2585 1821
09-28 51° 68° 8216 6066 4030 2595 1825
09-29 51° 65° 8252 6092 4046 2603 1828
09-30 40° 64° 8282 6112 4056 2605 1828

 

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.