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Crabgrass/Annual Bluegrass Preemergence Timer (GDD 32)
through Fri, Jun. 23. 2017

 

GDD Total: 0 (Base 32) through Fri, Jun. 23, 2017

  

MI

       

Forecast »

Done

801

Late

500

Optimum

250

Early

171

Under

0

 

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 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
02-29 n/a n/a n/a n/a n/a n/a n/a
03-01 26° 51° 292 151 49 6 0
2017Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
03-02 23° 30° 297 151 49 6 0
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
2017Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
03-14 14° 25° 398 202 66 7 0
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
2017Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
03-26 38° 51° 569 278 84 10 0
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
2017Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
04-07 34° 54° 815 404 109 10 0
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
2017Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
04-19 55° 71° 1226 695 280 94 49
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
2017Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
05-01 42° 60° 1598 947 412 144 71
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
2017Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
05-13 46° 73° 1935 1164 509 174 82
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
2017Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
05-25 56° 65° 2404 1513 738 310 164
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
2017Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
06-06 50° 76° 2913 1902 1007 483 277
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
2017Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
06-18 67° 76° 3536 2405 1390 770 504
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° 0 0 0 0 0
06-24 56° 71° 3807 2616 1541 873 577
06-25 53° 69° 3846 2645 1560 884 583
06-26 52° 68° 3884 2673 1578 894 588
06-27 51° 74° 3924 2703 1598 906 595
06-28 55° 77° 3968 2737 1622 922 606
06-29 60° 79° 4016 2775 1649 942 621
2017Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
2016Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
02-19 35° 61° 31 16 6 0 0
02-20 40° 55° 57 31 11 0 0
02-21 32° 46° 74 38 11 0 0
02-22 30° 41° 87 42 11 0 0
02-23 30° 46° 103 48 11 0 0
02-24 28° 34° 112 48 11 0 0
02-25 24° 32° 118 48 11 0 0
02-26 13° 31° 118 48 11 0 0
02-27 26° 41° 130 49 11 0 0
02-28 33° 51° 150 60 12 0 0
02-29 23° 41° 160 60 12 0 0
03-01 19° 23° 160 60 12 0 0
2016Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
03-02 -1° 27° 160 60 12 0 0
03-03 -2° 29° 160 60 12 0 0
03-04 32° 160 60 12 0 0
03-05 24° 34° 167 60 12 0 0
03-06 11° 38° 170 60 12 0 0
03-07 39° 55° 194 74 16 0 0
03-08 46° 69° 230 100 32 8 3
03-09 52° 62° 265 125 47 15 5
03-10 40° 52° 289 139 51 15 5
03-11 30° 56° 310 150 52 15 5
03-12 28° 61° 332 162 54 15 5
03-13 45° 48° 357 176 59 15 5
2016Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
03-14 44° 51° 382 192 64 15 5
03-15 37° 54° 406 206 68 15 5
03-16 44° 50° 431 221 73 15 5
03-17 35° 46° 449 229 73 15 5
03-18 31° 45° 465 235 73 15 5
03-19 29° 42° 479 239 73 15 5
03-20 21° 46° 490 240 73 15 5
03-21 27° 46° 505 245 73 15 5
03-22 33° 55° 527 257 75 15 5
03-23 31° 46° 544 264 75 15 5
03-24 29° 35° 554 264 75 15 5
03-25 26° 44° 568 268 75 15 5
2016Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
03-26 30° 55° 588 278 76 15 5
03-27 35° 70° 619 299 86 17 5
03-28 34° 47° 637 307 86 17 5
03-29 29° 54° 657 317 86 17 5
03-30 37° 58° 682 332 92 17 5
03-31 42° 68° 715 355 105 22 5
04-01 36° 50° 736 366 106 22 5
04-02 26° 36° 745 366 106 22 5
04-03 24° 52° 761 372 106 22 5
04-04 28° 33° 770 372 106 22 5
04-05 17° 44° 778 372 106 22 5
04-06 33° 43° 794 378 106 22 5
2016Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
04-07 33° 39° 808 382 106 22 5
04-08 28° 39° 820 384 106 22 5
04-09 18° 35° 824 384 106 22 5
04-10 19° 38° 831 384 106 22 5
04-11 34° 50° 851 394 106 22 5
04-12 31° 47° 868 401 106 22 5
04-13 31° 54° 888 411 106 22 5
04-14 31° 61° 913 425 110 22 5
04-15 34° 70° 943 445 120 24 5
04-16 41° 79° 981 473 138 34 10
04-17 43° 78° 1019 502 157 45 15
04-18 44° 83° 1061 533 178 58 24
2016Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
04-19 47° 62° 1093 556 191 63 24
04-20 48° 68° 1129 581 207 71 27
04-21 49° 63° 1163 605 220 76 28
04-22 48° 59° 1194 626 232 80 28
04-23 34° 60° 1219 641 236 80 28
04-24 38° 68° 1250 662 247 83 28
04-25 48° 77° 1290 693 268 95 35
04-26 40° 50° 1313 706 271 95 35
04-27 33° 60° 1338 721 276 95 35
04-28 37° 49° 1359 732 277 95 35
04-29 39° 52° 1383 745 281 95 35
04-30 36° 55° 1407 759 284 95 35
2016Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
05-01 43° 51° 1432 774 289 95 35
05-02 42° 58° 1460 792 298 96 35
05-03 34° 68° 1489 812 307 97 35
05-04 41° 54° 1514 827 312 97 35
05-05 43° 68° 1548 850 325 102 36
05-06 38° 76° 1582 875 340 109 37
05-07 51° 70° 1621 903 358 119 43
05-08 39° 67° 1652 924 369 122 43
05-09 39° 69° 1684 946 381 126 43
05-10 48° 55° 1713 966 391 128 43
05-11 49° 72° 1752 995 410 138 48
05-12 56° 66° 1791 1024 429 149 54
2016Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
05-13 49° 65° 1826 1049 444 157 56
05-14 40° 49° 1848 1061 446 157 56
05-15 34° 50° 1868 1071 446 157 56
05-16 38° 68° 1899 1092 457 160 56
05-17 46° 65° 1933 1115 471 165 57
05-18 42° 67° 1965 1138 483 170 57
05-19 37° 72° 1997 1160 495 174 57
05-20 42° 75° 2034 1186 512 182 60
05-21 52° 77° 2077 1219 535 197 70
05-22 47° 76° 2116 1249 554 209 77
05-23 43° 82° 2157 1280 575 221 84
05-24 48° 86° 2202 1315 600 238 96
2016Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
05-25 61° 88° 2255 1357 633 263 116
05-26 65° 84° 2307 1400 665 288 136
05-27 61° 86° 2359 1441 697 311 154
05-28 67° 85° 2413 1485 731 337 175
05-29 66° 81° 2464 1527 763 361 194
05-30 58° 84° 2513 1566 792 382 210
05-31 52° 85° 2560 1603 818 401 224
06-01 62° 74° 2606 1639 844 419 237
06-02 56° 77° 2651 1674 869 436 249
06-03 49° 81° 2694 1707 892 451 259
06-04 59° 85° 2744 1747 922 473 276
06-05 62° 70° 2788 1781 946 489 287
2016Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
06-06 53° 77° 2831 1814 969 504 297
06-07 52° 61° 2866 1838 984 510 298
06-08 45° 70° 2901 1864 999 518 301
06-09 42° 70° 2935 1888 1013 524 302
06-10 57° 90° 2986 1929 1045 547 320
06-11 69° 90° 3044 1977 1082 577 345
06-12 54° 80° 3089 2012 1108 594 357
06-13 53° 76° 3132 2045 1130 609 367
06-14 60° 80° 3180 2083 1158 629 382
06-15 61° 86° 3232 2125 1190 652 400
06-16 64° 73° 3278 2161 1217 671 414
06-17 56° 89° 3329 2202 1247 694 432
2016Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
06-18 56° 92° 3381 2243 1279 717 450
06-19 59° 92° 3434 2287 1312 743 471
06-20 66° 88° 3490 2332 1348 770 493
06-21 54° 81° 3535 2368 1373 788 506
06-22 55° 84° 3583 2406 1401 807 520
06-23 60° 79° 3631 2443 1429 827 535
06-24 54° 86° 3679 2481 1457 847 550
06-25 56° 92° 3731 2524 1489 871 569
06-26 73° 85° 3788 2571 1526 901 594
06-27 65° 87° 3842 2615 1560 927 615
06-28 57° 74° 3886 2648 1584 942 625
06-29 47° 81° 3928 2680 1606 956 634
2016Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
06-30 47° 82° 3970 2713 1628 971 644
07-01 56° 73° 4013 2745 1651 985 653
07-02 48° 78° 4054 2777 1672 999 662
07-03 50° 83° 4098 2811 1696 1015 673
07-04 51° 81° 4143 2845 1721 1031 684
07-05 63° 86° 4195 2888 1753 1056 704
07-06 66° 90° 4251 2934 1789 1084 727
07-07 62° 87° 4304 2977 1822 1108 746
07-08 65° 89° 4359 3022 1857 1136 769
07-09 64° 78° 4408 3061 1886 1157 785
07-10 53° 84° 4455 3098 1913 1176 799
07-11 64° 87° 4508 3141 1946 1201 819
2016Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
07-12 71° 91° 4568 3190 1986 1232 845
07-13 69° 89° 4625 3237 2023 1261 869
07-14 70° 86° 4680 3283 2058 1289 892
07-15 61° 74° 4726 3318 2084 1306 904
07-16 56° 78° 4771 3354 2109 1323 916
07-17 54° 85° 4818 3391 2136 1343 931
07-18 70° 87° 4875 3437 2173 1371 954
07-19 61° 87° 4927 3480 2205 1396 974
07-20 60° 93° 4981 3524 2239 1422 995
07-21 70° 88° 5038 3571 2276 1451 1019
07-22 72° 89° 5097 3620 2315 1482 1045
07-23 70° 94° 5157 3670 2355 1514 1072
2016Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
07-24 70° 87° 5214 3716 2392 1542 1095
07-25 70° 87° 5270 3763 2428 1570 1118
07-26 61° 88° 5323 3805 2461 1595 1138
07-27 63° 88° 5376 3849 2494 1621 1159
07-28 65° 83° 5428 3891 2526 1645 1178
07-29 65° 76° 5476 3929 2555 1665 1193
07-30 63° 74° 5523 3966 2581 1683 1206
07-31 64° 77° 5571 4004 2610 1704 1222
08-01 59° 84° 5621 4044 2639 1726 1239
08-02 60° 87° 5673 4085 2671 1749 1257
08-03 61° 91° 5727 4130 2705 1776 1279
08-04 65° 93° 5784 4177 2742 1804 1302
2016Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
08-05 68° 87° 5839 4222 2778 1832 1325
08-06 59° 82° 5888 4261 2806 1853 1341
08-07 56° 81° 5934 4297 2833 1871 1354
08-08 56° 84° 5983 4335 2861 1891 1369
08-09 55° 89° 6033 4375 2891 1913 1386
08-10 60° 92° 6086 4419 2925 1939 1407
08-11 68° 93° 6145 4468 2963 1970 1433
08-12 72° 86° 6202 4515 3000 1999 1457
08-13 70° 83° 6257 4559 3035 2025 1478
08-14 66° 84° 6310 4603 3068 2050 1498
08-15 60° 82° 6359 4641 3097 2071 1514
08-16 68° 83° 6412 4685 3130 2097 1535
2016Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
08-17 65° 84° 6465 4728 3163 2122 1555
08-18 60° 87° 6516 4769 3195 2145 1573
08-19 66° 83° 6569 4812 3227 2170 1593
08-20 67° 80° 6621 4853 3259 2193 1611
08-21 60° 72° 6665 4888 3283 2209 1622
08-22 51° 76° 6706 4919 3304 2223 1631
08-23 54° 59° 6741 4944 3319 2229 1632
08-24 72° 77° 6793 4986 3351 2254 1652
08-25 66° 80° 6845 5027 3383 2277 1670
08-26 61° 78° 6892 5065 3410 2297 1685
08-27 62° 67° 6934 5097 3432 2311 1694
08-28 69° 83° 6988 5141 3466 2337 1715
2016Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
08-29 64° 83° 7039 5182 3497 2360 1733
08-30 66° 82° 7092 5224 3530 2384 1752
08-31 62° 76° 7139 5261 3557 2403 1766
09-01 58° 73° 7182 5295 3580 2419 1777
09-02 51° 74° 7223 5325 3601 2431 1784
09-03 51° 75° 7264 5356 3622 2444 1792
09-04 51° 78° 7306 5389 3644 2459 1802
09-05 57° 85° 7355 5428 3673 2480 1818
09-06 71° 88° 7413 5476 3711 2510 1843
09-07 71° 81° 7467 5519 3745 2535 1863
09-08 68° 77° 7517 5560 3775 2558 1881
09-09 64° 80° 7567 5600 3805 2580 1898
2016Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
09-10 59° 74° 7612 5634 3830 2596 1909
09-11 50° 72° 7651 5664 3849 2607 1915
09-12 52° 76° 7693 5695 3871 2621 1924
09-13 56° 79° 7738 5731 3896 2639 1937
09-14 57° 73° 7781 5764 3919 2654 1947
09-15 50° 73° 7821 5793 3939 2665 1953
09-16 52° 80° 7865 5828 3963 2682 1965
09-17 64° 76° 7913 5866 3991 2702 1980
09-18 56° 75° 7956 5899 4014 2717 1990
09-19 52° 82° 8002 5934 4040 2734 2002
09-20 59° 80° 8049 5972 4067 2754 2017
09-21 56° 76° 8093 6006 4091 2770 2028
2016Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
09-22 61° 73° 8138 6041 4116 2787 2040
09-23 59° 69° 8180 6073 4138 2801 2049
09-24 51° 68° 8218 6101 4156 2810 2053
09-25 50° 74° 8258 6130 4176 2822 2060
09-26 59° 65° 8297 6160 4196 2834 2067
09-27 50° 59° 8330 6182 4208 2838 2067
09-28 50° 63° 8364 6207 4223 2845 2069
09-29 55° 62° 8401 6234 4239 2854 2072
09-30 58° 61° 8439 6262 4257 2863 2077

 

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.