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Crabgrass/Annual Bluegrass Preemergence Timer (GDD 32)
through Sat, Feb. 16. 2019

 

GDD Total: 4 (Base 32) through Sat, Feb. 16, 2019

  

Indianapolis, IN

       

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 23° 49° 14 4 0 0 0
02-16 21° 32° 19 4 0 0 0
02-17 25° 34° 26 4 0 0 0
02-18 25° 34° 34 4 0 0 0
02-19 20° 36° 40 4 0 0 0
02-20 28° 44° 54 8 0 0 0
02-21 29° 41° 67 11 0 0 0
02-22 26° 44° 80 15 0 0 0
02-23 34° 52° 101 26 1 0 0
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
02-15 56° 63° 37 27 17 9 4
02-16 31° 57° 59 39 19 9 4
02-17 28° 35° 69 39 19 9 4
02-18 28° 45° 84 44 19 9 4
02-19 44° 65° 116 67 32 14 4
02-20 64° 75° 163 104 59 33 19
02-21 37° 65° 193 123 68 34 19
02-22 36° 44° 211 131 68 34 19
02-23 44° 54° 237 148 75 34 19
02-24 41° 54° 263 163 80 34 19
02-25 37° 57° 287 178 85 34 19
02-26 30° 54° 308 188 85 34 19
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
02-27 33° 61° 333 203 90 34 19
02-28 50° 59° 365 226 103 39 19
03-01 35° 55° 388 239 106 39 19
03-02 32° 47° 406 246 106 39 19
03-03 27° 48° 421 252 106 39 19
03-04 30° 49° 439 260 106 39 19
03-05 31° 44° 455 266 106 39 19
03-06 33° 51° 475 276 106 39 19
03-07 30° 36° 486 277 106 39 19
03-08 23° 29° 490 277 106 39 19
03-09 24° 42° 501 278 106 39 19
03-10 26° 47° 516 282 106 39 19
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
03-11 29° 41° 529 286 106 39 19
03-12 25° 39° 539 286 106 39 19
03-13 25° 38° 549 286 106 39 19
03-14 20° 42° 558 286 106 39 19
03-15 32° 53° 579 296 107 39 19
03-16 23° 44° 590 298 107 39 19
03-17 33° 40° 605 302 107 39 19
03-18 25° 55° 623 310 107 39 19
03-19 36° 59° 648 326 112 39 19
03-20 28° 41° 661 328 112 39 19
03-21 27° 45° 675 332 112 39 19
03-22 25° 47° 689 337 112 39 19
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
03-23 27° 49° 705 343 112 39 19
03-24 30° 39° 718 345 112 39 19
03-25 25° 43° 730 347 112 39 19
03-26 31° 54° 750 358 112 39 19
03-27 49° 56° 780 378 123 41 19
03-28 46° 55° 809 396 131 41 19
03-29 44° 54° 836 413 138 41 19
03-30 37° 50° 857 425 140 41 19
03-31 35° 56° 881 438 143 41 19
04-01 31° 48° 898 446 143 41 19
04-02 28° 45° 913 451 143 41 19
04-03 42° 65° 945 473 155 45 19
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
04-04 31° 43° 960 477 155 45 19
04-05 26° 48° 975 483 155 45 19
04-06 29° 51° 993 491 155 45 19
04-07 27° 40° 1005 492 155 45 19
04-08 24° 41° 1015 493 155 45 19
04-09 32° 41° 1030 497 155 45 19
04-10 30° 42° 1044 501 155 45 19
04-11 32° 63° 1069 517 160 45 19
04-12 53° 78° 1113 550 184 60 29
04-13 64° 78° 1162 589 213 81 45
04-14 56° 70° 1202 620 234 94 53
04-15 40° 56° 1228 635 239 94 53
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
04-16 30° 38° 1240 637 239 94 53
04-17 32° 44° 1256 643 239 94 53
04-18 33° 67° 1284 661 247 94 53
04-19 35° 54° 1306 674 250 94 53
04-20 31° 60° 1330 687 253 94 53
04-21 39° 61° 1358 705 261 94 53
04-22 46° 67° 1393 730 276 101 55
04-23 49° 56° 1423 751 287 103 55
04-24 51° 56° 1455 772 298 107 55
04-25 48° 64° 1489 796 312 113 56
04-26 37° 66° 1518 816 322 114 56
04-27 42° 65° 1550 837 333 118 56
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
04-28 41° 60° 1578 856 342 118 56
04-29 32° 61° 1603 870 346 118 56
04-30 37° 74° 1636 894 360 124 56
05-01 46° 82° 1678 926 382 138 65
05-02 62° 86° 1730 968 414 162 84
05-03 65° 77° 1780 1007 443 183 101
05-04 60° 77° 1826 1044 470 202 114
05-05 53° 74° 1867 1075 491 215 122
05-06 53° 82° 1913 1110 516 232 135
05-07 50° 73° 1953 1140 536 244 142
05-08 47° 79° 1993 1171 557 257 149
05-09 52° 82° 2038 1206 582 274 161
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
05-10 59° 81° 2087 1244 610 294 177
05-11 60° 85° 2137 1285 641 317 194
05-12 71° 83° 2192 1330 676 344 216
05-13 63° 85° 2244 1372 708 368 235
05-14 67° 89° 2300 1418 744 396 258
05-15 68° 81° 2353 1460 776 420 278
05-16 65° 79° 2403 1500 806 442 295
05-17 59° 83° 2452 1539 835 463 311
05-18 64° 73° 2498 1576 862 482 324
05-19 66° 78° 2549 1616 892 504 342
05-20 63° 84° 2600 1658 924 528 360
05-21 64° 80° 2651 1698 954 550 378
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
05-22 65° 82° 2702 1740 986 574 396
05-23 58° 83° 2750 1778 1014 594 411
05-24 60° 84° 2800 1818 1044 616 428
05-25 59° 88° 2852 1859 1075 639 447
05-26 70° 85° 2907 1905 1111 667 469
05-27 68° 92° 2965 1952 1148 696 494
05-28 68° 94° 3024 2001 1187 727 520
05-29 70° 90° 3082 2049 1225 757 545
05-30 73° 80° 3136 2094 1260 784 566
05-31 73° 85° 3193 2140 1296 812 590
06-01 70° 84° 3248 2185 1331 839 612
06-02 62° 87° 3300 2228 1364 864 631
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
06-03 71° 81° 3354 2272 1398 890 652
06-04 56° 77° 3399 2307 1423 907 664
06-05 59° 86° 3450 2347 1453 929 682
06-06 56° 80° 3496 2383 1479 947 695
06-07 63° 91° 3551 2429 1515 975 717
06-08 70° 91° 3610 2477 1553 1005 743
06-09 68° 88° 3666 2523 1589 1033 766
06-10 65° 70° 3711 2559 1615 1051 778
06-11 65° 77° 3760 2598 1644 1072 794
06-12 67° 79° 3811 2639 1675 1095 812
06-13 69° 84° 3866 2683 1709 1121 834
06-14 57° 82° 3913 2721 1737 1141 848
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
06-15 65° 88° 3967 2765 1771 1167 869
06-16 71° 92° 4027 2815 1811 1199 896
06-17 74° 92° 4088 2866 1852 1232 924
06-18 75° 92° 4150 2917 1893 1265 953
06-19 73° 90° 4209 2967 1933 1297 979
06-20 71° 83° 4264 3012 1968 1324 1001
06-21 67° 77° 4314 3052 1998 1346 1018
06-22 66° 76° 4363 3091 2027 1367 1034
06-23 65° 74° 4410 3128 2054 1386 1048
06-24 65° 83° 4462 3170 2086 1410 1067
06-25 67° 77° 4512 3209 2115 1431 1084
06-26 67° 75° 4561 3249 2145 1453 1100
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
06-27 69° 82° 4615 3292 2178 1478 1121
06-28 67° 85° 4669 3336 2212 1504 1142
06-29 69° 91° 4726 3384 2250 1534 1166
06-30 72° 90° 4785 3433 2289 1565 1192
07-01 74° 92° 4847 3484 2330 1598 1221
07-02 74° 87° 4905 3533 2369 1629 1246
07-03 74° 90° 4965 3583 2409 1661 1273
07-04 74° 92° 5026 3634 2450 1694 1301
07-05 73° 89° 5086 3683 2489 1725 1328
07-06 69° 81° 5139 3726 2522 1750 1348
07-07 59° 80° 5186 3764 2550 1770 1362
07-08 58° 86° 5236 3804 2580 1792 1379
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
07-09 68° 89° 5293 3850 2616 1820 1403
07-10 72° 90° 5351 3899 2655 1851 1428
07-11 68° 86° 5407 3944 2690 1878 1451
07-12 63° 85° 5458 3986 2722 1902 1469
07-13 63° 90° 5512 4030 2756 1928 1490
07-14 67° 90° 5569 4077 2793 1957 1514
07-15 74° 88° 5628 4126 2832 1988 1540
07-16 72° 86° 5685 4172 2868 2016 1564
07-17 69° 86° 5740 4218 2904 2044 1586
07-18 58° 84° 5789 4257 2933 2065 1602
07-19 63° 86° 5842 4300 2966 2090 1622
07-20 69° 89° 5899 4347 3003 2119 1646
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
07-21 68° 74° 5948 4386 3032 2140 1662
07-22 68° 78° 5999 4427 3063 2163 1680
07-23 62° 76° 6046 4463 3089 2181 1694
07-24 63° 84° 6098 4505 3121 2205 1713
07-25 66° 85° 6151 4549 3155 2231 1733
07-26 62° 84° 6202 4590 3186 2254 1751
07-27 59° 78° 6249 4627 3213 2273 1765
07-28 57° 80° 6296 4663 3239 2291 1779
07-29 61° 76° 6342 4700 3266 2310 1792
07-30 64° 71° 6388 4735 3291 2327 1805
07-31 65° 70° 6433 4771 3317 2345 1817
08-01 63° 77° 6481 4809 3345 2365 1832
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
08-02 59° 83° 6530 4847 3373 2385 1848
08-03 64° 84° 6582 4889 3405 2409 1867
08-04 69° 89° 6639 4936 3442 2438 1891
08-05 68° 88° 6695 4982 3478 2466 1914
08-06 71° 89° 6753 5030 3516 2496 1939
08-07 68° 82° 6806 5074 3550 2522 1959
08-08 71° 83° 6861 5119 3585 2549 1981
08-09 64° 85° 6914 5161 3617 2573 2001
08-10 69° 86° 6969 5207 3653 2601 2023
08-11 66° 80° 7020 5248 3684 2624 2041
08-12 62° 84° 7072 5289 3715 2647 2060
08-13 63° 84° 7123 5331 3747 2671 2078
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
08-14 65° 85° 7176 5374 3780 2696 2098
08-15 70° 76° 7227 5415 3811 2719 2116
08-16 68° 79° 7279 5456 3842 2742 2135
08-17 69° 78° 7330 5498 3874 2766 2153
08-18 68° 81° 7383 5541 3907 2791 2173
08-19 65° 84° 7436 5583 3939 2815 2193
08-20 67° 82° 7488 5626 3972 2840 2212
08-21 67° 79° 7539 5667 4003 2863 2230
08-22 60° 75° 7585 5702 4028 2880 2243
08-23 54° 79° 7629 5736 4052 2896 2254
08-24 55° 74° 7671 5769 4075 2911 2263
08-25 67° 80° 7723 5810 4106 2934 2282
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
08-26 74° 89° 7782 5860 4146 2966 2308
08-27 73° 89° 7841 5909 4185 2997 2334
08-28 72° 90° 7900 5958 4224 3028 2360
08-29 71° 86° 7957 6004 4260 3056 2384
08-30 65° 80° 8007 6045 4291 3079 2401
08-31 61° 85° 8058 6085 4321 3101 2419
09-01 68° 83° 8112 6129 4355 3127 2440
09-02 70° 88° 8168 6176 4392 3156 2463
09-03 71° 91° 8227 6225 4431 3187 2489
09-04 71° 91° 8287 6274 4470 3218 2516
09-05 71° 92° 8346 6323 4509 3249 2542
09-06 70° 87° 8402 6370 4546 3278 2565
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
09-07 66° 74° 8450 6408 4574 3298 2580
09-08 61° 66° 8492 6439 4595 3311 2589
09-09 57° 60° 8528 6466 4612 3320 2592
09-10 56° 69° 8569 6496 4632 3332 2600
09-11 52° 74° 8610 6528 4654 3346 2608
09-12 55° 73° 8652 6560 4676 3360 2617
09-13 60° 82° 8701 6599 4705 3381 2633
09-14 63° 86° 8754 6641 4737 3405 2653
09-15 64° 86° 8807 6684 4770 3430 2673
09-16 68° 88° 8863 6730 4806 3458 2696
09-17 69° 89° 8919 6777 4843 3487 2719
09-18 67° 91° 8976 6824 4880 3516 2743
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
09-19 70° 90° 9034 6872 4918 3546 2768
09-20 70° 91° 9092 6920 4956 3576 2793
09-21 66° 82° 9144 6962 4988 3600 2812
09-22 55° 64° 9182 6990 5006 3610 2817
09-23 52° 78° 9225 7023 5029 3625 2827
09-24 60° 70° 9269 7056 5052 3640 2838
09-25 70° 77° 9320 7098 5084 3664 2856
09-26 55° 71° 9361 7129 5105 3677 2864
09-27 51° 62° 9396 7153 5119 3683 2866
09-28 45° 73° 9433 7180 5136 3692 2870
09-29 47° 66° 9467 7205 5151 3699 2871
09-30 53° 79° 9512 7239 5175 3715 2883
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.