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Relative Flowering Times for Broadleaf Weeds (GDD 50)
forecast for Mon, Oct. 1. 2018

 
  

East Lansing, 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° 55° 61 22 3 0 0
02-20 55° 61° 97 48 19 8 3
02-21 32° 50° 115 56 19 8 3
02-22 30° 40° 128 59 19 8 3
02-23 33° 45° 145 66 19 8 3
02-24 34° 41° 161 72 19 8 3
02-25 36° 49° 181 82 19 8 3
02-26 29° 50° 199 90 19 8 3
02-27 37° 60° 226 107 26 8 3
02-28 43° 60° 256 127 36 9 3
03-01 31° 40° 269 130 36 9 3
03-02 26° 42° 282 133 36 9 3
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
03-03 23° 40° 291 133 36 9 3
03-04 26° 41° 303 134 36 9 3
03-05 26° 37° 312 134 36 9 3
03-06 30° 39° 325 137 36 9 3
03-07 24° 33° 331 137 36 9 3
03-08 22° 31° 335 137 36 9 3
03-09 26° 32° 342 137 36 9 3
03-10 19° 34° 347 137 36 9 3
03-11 20° 37° 354 137 36 9 3
03-12 23° 36° 361 137 36 9 3
03-13 25° 33° 368 137 36 9 3
03-14 23° 39° 377 137 36 9 3
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
03-15 25° 36° 386 137 36 9 3
03-16 21° 38° 393 137 36 9 3
03-17 22° 48° 406 140 36 9 3
03-18 25° 56° 425 149 36 9 3
03-19 25° 44° 438 152 36 9 3
03-20 22° 39° 446 152 36 9 3
03-21 25° 37° 455 152 36 9 3
03-22 22° 44° 467 153 36 9 3
03-23 24° 42° 477 154 36 9 3
03-24 23° 40° 487 154 36 9 3
03-25 21° 40° 496 154 36 9 3
03-26 27° 52° 513 161 36 9 3
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
03-27 42° 52° 538 176 41 9 3
03-28 39° 45° 558 186 41 9 3
03-29 41° 47° 580 198 43 9 3
03-30 29° 45° 595 203 43 9 3
03-31 32° 46° 612 210 43 9 3
04-01 27° 37° 623 211 43 9 3
04-02 19° 42° 631 211 43 9 3
04-03 34° 38° 646 215 43 9 3
04-04 26° 33° 653 215 43 9 3
04-05 25° 41° 665 216 43 9 3
04-06 25° 38° 674 216 43 9 3
04-07 19° 34° 678 216 43 9 3
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
04-08 16° 39° 684 216 43 9 3
04-09 30° 38° 696 218 43 9 3
04-10 25° 45° 709 221 43 9 3
04-11 33° 57° 732 234 46 9 3
04-12 43° 70° 766 259 60 16 5
04-13 39° 60° 794 276 68 16 5
04-14 30° 39° 807 279 68 16 5
04-15 30° 34° 817 279 68 16 5
04-16 31° 36° 828 280 68 16 5
04-17 27° 34° 836 280 68 16 5
04-18 30° 42° 851 284 68 16 5
04-19 32° 53° 871 295 69 16 5
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
04-20 30° 58° 893 307 71 16 5
04-21 32° 58° 916 320 74 16 5
04-22 32° 63° 941 335 79 16 5
04-23 38° 72° 974 358 92 21 5
04-24 53° 59° 1008 382 106 27 6
04-25 43° 60° 1038 401 115 28 6
04-26 31° 64° 1063 417 121 28 6
04-27 40° 60° 1091 435 128 28 6
04-28 37° 54° 1114 448 131 28 6
04-29 30° 59° 1136 460 134 28 6
04-30 31° 72° 1166 480 143 30 6
05-01 56° 83° 1213 517 171 50 20
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
05-02 65° 85° 1267 560 204 75 40
05-03 61° 68° 1310 593 227 90 50
05-04 56° 69° 1350 624 247 102 58
05-05 55° 79° 1395 659 272 119 70
05-06 50° 66° 1431 685 288 127 73
05-07 39° 68° 1462 706 300 130 73
05-08 49° 80° 1505 738 322 145 82
05-09 55° 81° 1550 774 347 162 94
05-10 57° 66° 1590 804 367 174 101
05-11 40° 54° 1615 819 372 174 101
05-12 42° 52° 1640 834 377 174 101
05-13 47° 61° 1672 856 389 178 101
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
05-14 51° 75° 1713 887 410 191 109
05-15 60° 72° 1757 921 435 207 120
05-16 52° 79° 1800 954 458 222 131
05-17 52° 76° 1842 986 480 236 140
05-18 47° 76° 1882 1016 499 248 146
05-19 56° 71° 1924 1047 521 262 155
05-20 53° 59° 1958 1071 535 268 156
05-21 48° 64° 1992 1095 549 274 157
05-22 51° 66° 2028 1122 566 282 161
05-23 48° 79° 2070 1154 588 296 169
05-24 50° 82° 2114 1188 611 312 180
05-25 58° 87° 2165 1229 642 335 198
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
05-26 68° 86° 2220 1274 678 362 220
05-27 62° 92° 2275 1319 713 389 243
05-28 62° 93° 2331 1365 748 417 265
05-29 68° 91° 2388 1412 786 446 290
05-30 71° 87° 2445 1459 823 475 314
05-31 72° 85° 2502 1505 859 504 337
06-01 62° 81° 2551 1545 889 525 353
06-02 54° 65° 2589 1573 906 535 358
06-03 60° 70° 2632 1606 929 550 368
06-04 57° 71° 2674 1638 951 564 377
06-05 56° 67° 2714 1667 971 576 384
06-06 46° 72° 2751 1694 988 585 388
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
06-07 60° 82° 2800 1733 1017 606 404
06-08 59° 81° 2848 1771 1045 626 419
06-09 62° 71° 2893 1806 1070 643 431
06-10 58° 68° 2934 1837 1091 656 439
06-11 57° 79° 2980 1873 1117 674 452
06-12 59° 76° 3025 1909 1142 691 464
06-13 63° 80° 3074 1948 1172 712 481
06-14 54° 82° 3120 1984 1198 730 494
06-15 58° 81° 3168 2021 1225 750 508
06-16 66° 85° 3221 2065 1258 775 528
06-17 70° 93° 3280 2114 1297 806 554
06-18 74° 91° 3340 2164 1338 838 582
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
06-19 67° 74° 3389 2202 1366 859 597
06-20 60° 71° 3432 2236 1390 874 608
06-21 56° 76° 3476 2270 1414 890 619
06-22 60° 74° 3521 2305 1439 907 631
06-23 62° 73° 3567 2341 1464 925 643
06-24 60° 72° 3611 2375 1489 941 655
06-25 55° 76° 3655 2408 1512 957 665
06-26 54° 79° 3699 2443 1537 973 677
06-27 66° 73° 3747 2481 1564 993 691
06-28 62° 86° 3799 2523 1596 1017 710
06-29 64° 90° 3853 2567 1631 1043 732
06-30 76° 91° 3915 2619 1673 1077 760
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
07-01 72° 93° 3976 2669 1713 1110 788
07-02 70° 85° 4031 2715 1749 1137 810
07-03 61° 90° 4085 2759 1782 1163 831
07-04 71° 92° 4144 2808 1822 1194 858
07-05 75° 92° 4206 2860 1863 1228 886
07-06 62° 76° 4253 2897 1890 1247 900
07-07 50° 80° 4296 2930 1914 1262 910
07-08 53° 86° 4344 2967 1941 1282 925
07-09 59° 88° 4395 3009 1972 1305 943
07-10 67° 85° 4449 3053 2006 1331 964
07-11 58° 83° 4497 3091 2035 1351 980
07-12 57° 84° 4546 3129 2063 1372 995
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
07-13 65° 91° 4602 3176 2099 1400 1018
07-14 68° 82° 4655 3219 2132 1425 1038
07-15 67° 91° 4712 3265 2169 1454 1062
07-16 70° 87° 4768 3312 2205 1482 1085
07-17 60° 79° 4816 3349 2233 1502 1100
07-18 55° 78° 4860 3384 2257 1518 1111
07-19 55° 84° 4908 3421 2285 1538 1126
07-20 66° 80° 4959 3462 2316 1561 1144
07-21 65° 76° 5007 3501 2345 1581 1160
07-22 64° 71° 5053 3537 2371 1599 1173
07-23 64° 76° 5101 3575 2399 1619 1188
07-24 65° 81° 5152 3616 2430 1642 1206
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
07-25 61° 84° 5203 3656 2460 1665 1223
07-26 64° 81° 5253 3697 2490 1687 1240
07-27 59° 75° 5298 3731 2515 1704 1252
07-28 56° 78° 5342 3766 2540 1720 1264
07-29 54° 80° 5387 3801 2565 1737 1276
07-30 56° 81° 5434 3838 2592 1756 1290
07-31 57° 78° 5479 3873 2617 1773 1302
08-01 63° 80° 5529 3912 2646 1795 1318
08-02 62° 85° 5580 3954 2678 1818 1337
08-03 64° 83° 5632 3996 2709 1842 1355
08-04 57° 90° 5684 4037 2741 1866 1374
08-05 71° 93° 5743 4087 2781 1897 1401
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
08-06 70° 79° 5796 4130 2813 1922 1420
08-07 68° 84° 5850 4174 2847 1948 1441
08-08 67° 82° 5902 4216 2880 1972 1461
08-09 63° 80° 5952 4255 2909 1994 1477
08-10 65° 83° 6003 4297 2941 2017 1496
08-11 58° 83° 6052 4336 2969 2038 1511
08-12 61° 84° 6102 4376 3000 2060 1529
08-13 60° 84° 6152 4416 3030 2082 1546
08-14 60° 87° 6204 4457 3061 2106 1564
08-15 65° 86° 6257 4501 3094 2131 1584
08-16 66° 80° 6308 4542 3125 2154 1602
08-17 68° 76° 6357 4581 3155 2175 1619
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
08-18 66° 81° 6409 4623 3187 2199 1637
08-19 64° 82° 6460 4664 3218 2222 1656
08-20 64° 81° 6511 4704 3248 2245 1673
08-21 68° 74° 6560 4743 3277 2266 1689
08-22 58° 75° 6604 4778 3302 2282 1700
08-23 54° 80° 6649 4813 3327 2299 1712
08-24 57° 76° 6694 4847 3351 2316 1724
08-25 66° 77° 6743 4887 3381 2337 1740
08-26 69° 86° 6798 4932 3416 2364 1762
08-27 71° 88° 6856 4979 3453 2394 1787
08-28 69° 87° 6912 5025 3489 2422 1810
08-29 63° 76° 6959 5063 3517 2441 1824
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
08-30 51° 71° 6999 5092 3536 2453 1831
08-31 55° 82° 7045 5129 3563 2471 1845
09-01 67° 81° 7097 5171 3595 2495 1864
09-02 70° 86° 7154 5217 3631 2524 1887
09-03 70° 84° 7209 5262 3666 2551 1909
09-04 69° 90° 7266 5310 3703 2580 1933
09-05 71° 90° 7325 5359 3742 2611 1959
09-06 62° 71° 7369 5393 3767 2627 1971
09-07 56° 69° 7410 5424 3787 2640 1978
09-08 55° 67° 7449 5452 3806 2651 1984
09-09 52° 64° 7485 5479 3822 2659 1987
09-10 54° 65° 7523 5506 3840 2669 1992
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
09-11 50° 76° 7564 5538 3861 2682 2000
09-12 53° 79° 7608 5572 3885 2698 2011
09-13 56° 77° 7652 5606 3909 2714 2022
09-14 63° 80° 7702 5645 3939 2736 2039
09-15 56° 84° 7750 5683 3967 2756 2054
09-16 63° 86° 7802 5726 4000 2780 2074
09-17 62° 88° 7855 5769 4033 2805 2094
09-18 62° 85° 7907 5810 4064 2829 2112
09-19 64° 78° 7955 5849 4093 2849 2128
09-20 65° 80° 8006 5890 4123 2872 2145
09-21 59° 77° 8052 5926 4150 2890 2158
09-22 47° 64° 8086 5949 4163 2896 2159
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
09-23 42° 71° 8121 5974 4178 2903 2161
09-24 49° 69° 8157 6001 4195 2911 2165
09-25 67° 78° 8208 6041 4225 2934 2182
09-26 53° 61° 8243 6067 4240 2941 2184
09-27 45° 66° 8276 6090 4254 2946 2185
09-28 49° 65° 8311 6115 4269 2953 2187
09-29 43° 58° 8340 6134 4277 2954 2187
09-30 40° 59° 8367 6151 4285 2954 2187
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
03-01 26° 55° 321 172 61 8 0
03-02 22° 30° 325 172 61 8 0
2017Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
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
03-14 13° 22° 430 225 77 8 0
2017Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
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
03-26 39° 53° 605 302 95 12 0
2017Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
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
04-07 33° 52° 861 438 127 14 0
2017Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
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
04-19 56° 72° 1271 728 297 96 45
2017Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
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
05-01 44° 66° 1664 1001 450 161 73
2017Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
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
05-13 46° 72° 2000 1217 546 188 80
2017Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
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
05-25 56° 62° 2476 1573 782 329 167
2017Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
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
06-06 49° 72° 2989 1966 1055 506 284
2017Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
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
06-18 65° 80° 3607 2464 1433 789 506
2017Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
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
06-30 67° 79° 4143 2880 1729 988 646
2017Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
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
07-12 71° 81° 4743 3360 2089 1252 850
2017Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
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
07-24 61° 74° 5355 3852 2461 1528 1066
2017Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
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
08-05 53° 75° 5917 4294 2783 1754 1232
2017Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
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
08-17 68° 81° 6488 4746 3115 1990 1407
2017Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
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
08-29 56° 75° 7013 5150 3399 2179 1536
2017Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
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
09-10 40° 70° 7468 5486 3615 2298 1600
2017Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
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 66° 86° 7919 5836 3865 2468 1720
09-21 68° 93° 7977 5884 3903 2498 1745
09-22 65° 91° 8033 5930 3939 2526 1769
2017Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
09-23 63° 93° 8090 5977 3976 2555 1792
09-24 60° 92° 8144 6021 4010 2581 1813
09-25 63° 89° 8197 6065 4044 2607 1834
09-26 60° 90° 8251 6108 4077 2632 1854
09-27 57° 73° 8294 6141 4100 2647 1864
09-28 48° 69° 8330 6167 4116 2655 1868
09-29 52° 67° 8368 6195 4134 2665 1872
09-30 40° 64° 8398 6215 4144 2667 1872

 

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.