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Crabgrass/Annual Bluegrass Preemergence Timer (GDD 32)
through Fri, Mar. 22. 2019

 

GDD Total: 48 (Base 32) through Fri, Mar. 22, 2019

  

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 2018 & 2019

2019Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
02-15 19° 38° 6 0 0 0 0
02-16 16° 27° 6 0 0 0 0
02-17 14° 24° 6 0 0 0 0
02-18 14° 26° 6 0 0 0 0
02-19 27° 6 0 0 0 0
02-20 18° 35° 11 0 0 0 0
02-21 23° 35° 17 0 0 0 0
02-22 11° 35° 19 0 0 0 0
02-23 25° 37° 28 0 0 0 0
02-24 22° 43° 39 1 0 0 0
02-25 12° 21° 39 1 0 0 0
02-26 10° 18° 39 1 0 0 0
2019Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
02-27 15° 25° 39 1 0 0 0
02-28 15° 27° 39 1 0 0 0
03-01 12° 32° 39 1 0 0 0
03-02 17° 31° 40 1 0 0 0
03-03 10° 21° 40 1 0 0 0
03-04 12° 40 1 0 0 0
03-05 11° 17° 40 1 0 0 0
03-06 22° 40 1 0 0 0
03-07 25° 40 1 0 0 0
03-08 35° 40 1 0 0 0
03-09 15° 37° 44 1 0 0 0
03-10 34° 39° 58 5 0 0 0
2019Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
03-11 22° 33° 64 5 0 0 0
03-12 10° 40° 67 5 0 0 0
03-13 35° 44° 85 13 0 0 0
03-14 42° 56° 112 30 7 0 0
03-15 32° 40° 126 34 7 0 0
03-16 23° 34° 133 34 7 0 0
03-17 19° 37° 139 34 7 0 0
03-18 20° 41° 148 34 7 0 0
03-19 23° 45° 160 36 7 0 0
03-20 32° 41° 174 41 7 0 0
03-21 32° 41° 189 45 7 0 0
03-22 28° 41° 201 48 7 0 0
2019Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
03-23 20° 46° 212 49 7 0 0
03-24 31° 53° 232 59 7 0 0
03-25 25° 43° 244 61 7 0 0
03-26 18° 43° 253 61 7 0 0
03-27 24° 51° 268 66 7 0 0
03-28 41° 54° 294 81 12 0 0
03-29 38° 46° 314 91 12 0 0
03-30 31° 42° 328 96 12 0 0
03-31 26° 42° 340 98 12 0 0
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
02-15 36° 41° 17 7 0 0 0
02-16 16° 34° 19 7 0 0 0
02-17 14° 33° 21 7 0 0 0
02-18 27° 38° 31 7 0 0 0
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
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
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
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
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
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
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
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
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
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
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
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
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
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
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
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
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
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
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
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
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
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
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
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
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
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
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
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
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
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
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
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
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
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
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
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
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
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
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
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
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
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
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
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
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
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
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
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
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
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
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
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
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
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
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
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55

 

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.