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Crabgrass/Annual Bluegrass Preemergence Timer (GDD 32)
through Sun, Mar. 24. 2019

 

GDD Total: 209 (Base 32) through Sun, Mar. 24, 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 24° 50° 15 5 0 0 0
02-16 21° 31° 19 5 0 0 0
02-17 24° 31° 25 5 0 0 0
02-18 29° 31° 33 5 0 0 0
02-19 22° 34° 38 5 0 0 0
02-20 30° 41° 51 8 0 0 0
02-21 30° 41° 65 12 0 0 0
02-22 30° 40° 78 15 0 0 0
02-23 35° 55° 101 28 3 0 0
02-24 26° 57° 121 37 3 0 0
02-25 17° 35° 125 37 3 0 0
02-26 26° 42° 137 39 3 0 0
2019Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
02-27 28° 46° 152 44 3 0 0
02-28 27° 33° 160 44 3 0 0
03-01 26° 41° 171 46 3 0 0
03-02 31° 38° 184 49 3 0 0
03-03 20° 31° 187 49 3 0 0
03-04 18° 187 49 3 0 0
03-05 18° 187 49 3 0 0
03-06 11° 27° 187 49 3 0 0
03-07 23° 35° 194 49 3 0 0
03-08 27° 39° 205 50 3 0 0
03-09 32° 55° 227 62 5 0 0
03-10 36° 54° 250 75 8 0 0
2019Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
03-11 30° 47° 266 81 8 0 0
03-12 26° 48° 281 86 8 0 0
03-13 41° 68° 314 109 21 5 0
03-14 50° 70° 353 137 39 15 5
03-15 33° 48° 371 146 39 15 5
03-16 28° 43° 385 150 39 15 5
03-17 26° 46° 399 153 39 15 5
03-18 25° 46° 412 157 39 15 5
03-19 25° 49° 427 162 39 15 5
03-20 34° 49° 447 171 39 15 5
03-21 39° 43° 466 181 39 15 5
03-22 34° 48° 485 190 39 15 5
2019Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
03-23 24° 53° 502 197 39 15 5
03-24 39° 51° 525 209 42 15 5
03-25 41° 47° 547 221 44 15 5
03-26 26° 47° 561 226 44 15 5
03-27 28° 56° 581 236 44 15 5
03-28 41° 64° 611 256 54 18 5
03-29 48° 62° 645 279 67 23 6
03-30 48° 56° 675 299 77 25 6
03-31 33° 48° 693 308 77 25 6
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
02-15 55° 63° 37 27 17 9 4
02-16 30° 58° 59 39 19 9 4
02-17 27° 35° 68 39 19 9 4
02-18 29° 45° 83 44 19 9 4
02-19 43° 65° 115 66 32 14 4
02-20 63° 75° 162 104 59 33 18
02-21 37° 66° 192 123 68 34 18
02-22 36° 44° 210 131 68 34 18
02-23 43° 55° 237 148 75 34 18
02-24 41° 53° 262 163 80 34 18
02-25 37° 56° 287 178 85 34 18
02-26 30° 54° 307 188 85 34 18
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
02-27 33° 61° 332 203 90 34 18
02-28 50° 59° 365 226 103 39 18
03-01 35° 55° 388 239 106 39 18
03-02 32° 47° 405 247 106 39 18
03-03 27° 48° 421 252 106 39 18
03-04 29° 49° 438 259 106 39 18
03-05 31° 44° 453 265 106 39 18
03-06 33° 52° 474 275 106 39 18
03-07 30° 36° 485 276 106 39 18
03-08 23° 29° 489 276 106 39 18
03-09 21° 42° 499 276 106 39 18
03-10 26° 46° 513 280 106 39 18
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
03-11 29° 41° 526 283 106 39 18
03-12 24° 39° 535 283 106 39 18
03-13 28° 37° 546 284 106 39 18
03-14 23° 41° 556 284 106 39 18
03-15 32° 54° 577 295 107 39 18
03-16 23° 43° 588 296 107 39 18
03-17 32° 40° 602 300 107 39 18
03-18 26° 55° 620 309 107 39 18
03-19 35° 59° 645 324 112 39 18
03-20 29° 42° 659 327 112 39 18
03-21 27° 45° 673 331 112 39 18
03-22 26° 47° 687 336 112 39 18
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
03-23 27° 48° 703 341 112 39 18
03-24 30° 37° 715 343 112 39 18
03-25 25° 43° 727 345 112 39 18
03-26 32° 53° 747 356 112 39 18
03-27 48° 55° 777 375 122 40 18
03-28 46° 54° 805 393 130 40 18
03-29 44° 53° 832 410 137 40 18
03-30 39° 51° 855 423 140 40 18
03-31 35° 55° 878 436 143 40 18
04-01 31° 49° 896 444 143 40 18
04-02 28° 44° 910 448 143 40 18
04-03 42° 66° 942 470 155 44 18
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
04-04 31° 43° 957 476 155 44 18
04-05 26° 48° 972 481 155 44 18
04-06 29° 52° 991 489 155 44 18
04-07 27° 40° 1003 491 155 44 18
04-08 24° 41° 1013 491 155 44 18
04-09 31° 40° 1027 495 155 44 18
04-10 29° 43° 1041 499 155 44 18
04-11 32° 64° 1067 515 161 44 18
04-12 54° 78° 1110 549 185 60 29
04-13 64° 79° 1160 588 214 82 46
04-14 56° 70° 1201 619 235 95 54
04-15 40° 57° 1228 636 242 95 54
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
04-16 30° 39° 1240 639 242 95 54
04-17 31° 44° 1256 644 242 95 54
04-18 33° 67° 1284 662 250 95 54
04-19 34° 55° 1306 675 253 95 54
04-20 30° 60° 1330 688 256 95 54
04-21 38° 60° 1357 705 263 95 54
04-22 46° 67° 1391 729 277 101 55
04-23 49° 56° 1421 750 288 104 55
04-24 51° 56° 1453 771 299 107 55
04-25 48° 64° 1487 795 313 113 56
04-26 37° 66° 1517 815 323 115 56
04-27 40° 65° 1548 836 334 118 56
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
04-28 41° 59° 1576 854 342 118 56
04-29 31° 61° 1600 868 346 118 56
04-30 35° 74° 1632 890 358 122 56
05-01 48° 82° 1675 923 381 137 66
05-02 63° 86° 1727 966 414 161 86
05-03 66° 77° 1777 1006 444 183 103
05-04 61° 76° 1824 1042 470 202 116
05-05 53° 73° 1864 1073 491 214 124
05-06 53° 82° 1910 1108 516 232 136
05-07 50° 73° 1950 1138 536 244 143
05-08 47° 79° 1990 1169 557 256 151
05-09 53° 83° 2036 1204 582 274 163
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
05-10 60° 81° 2085 1243 611 295 179
05-11 59° 85° 2135 1283 641 317 196
05-12 70° 81° 2189 1327 675 343 217
05-13 62° 85° 2240 1369 707 366 236
05-14 67° 90° 2297 1415 743 395 259
05-15 69° 83° 2351 1459 777 421 280
05-16 65° 79° 2401 1499 807 443 297
05-17 59° 83° 2450 1538 836 464 313
05-18 63° 72° 2495 1573 861 481 325
05-19 66° 78° 2545 1613 891 503 342
05-20 63° 84° 2597 1655 923 527 361
05-21 64° 81° 2647 1695 953 549 378
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
05-22 65° 82° 2699 1737 985 573 397
05-23 57° 82° 2746 1775 1013 593 412
05-24 58° 84° 2796 1814 1042 614 428
05-25 58° 88° 2847 1855 1073 637 446
05-26 70° 86° 2902 1901 1109 664 469
05-27 68° 91° 2960 1948 1146 694 493
05-28 68° 94° 3019 1997 1185 725 519
05-29 69° 90° 3077 2045 1223 755 544
05-30 73° 81° 3131 2090 1258 782 566
05-31 73° 85° 3188 2137 1295 810 590
06-01 70° 84° 3243 2181 1329 837 611
06-02 62° 86° 3295 2224 1362 862 631
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
06-03 71° 81° 3350 2268 1396 888 652
06-04 56° 77° 3394 2303 1421 904 664
06-05 59° 86° 3445 2343 1451 927 681
06-06 54° 79° 3489 2378 1476 943 693
06-07 62° 90° 3543 2422 1510 970 714
06-08 70° 90° 3601 2470 1548 1000 739
06-09 67° 89° 3658 2516 1584 1028 762
06-10 65° 70° 3703 2551 1609 1045 774
06-11 66° 77° 3753 2591 1639 1067 791
06-12 67° 79° 3803 2632 1670 1090 809
06-13 69° 83° 3857 2676 1704 1115 830
06-14 56° 82° 3904 2712 1730 1134 843
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
06-15 64° 87° 3958 2756 1764 1160 864
06-16 70° 92° 4017 2805 1803 1191 890
06-17 74° 92° 4078 2856 1844 1224 918
06-18 75° 92° 4139 2908 1886 1257 947
06-19 74° 90° 4199 2958 1926 1289 974
06-20 71° 83° 4254 3003 1961 1316 996
06-21 67° 77° 4305 3043 1991 1339 1013
06-22 66° 75° 4353 3081 2019 1359 1028
06-23 65° 74° 4401 3119 2047 1379 1043
06-24 65° 83° 4453 3161 2079 1403 1062
06-25 67° 76° 4502 3201 2109 1424 1079
06-26 67° 74° 4551 3239 2137 1445 1094
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
06-27 69° 82° 4604 3283 2171 1470 1115
06-28 67° 86° 4658 3327 2205 1496 1136
06-29 68° 89° 4715 3373 2241 1525 1159
06-30 71° 90° 4774 3422 2280 1556 1185
07-01 74° 91° 4835 3473 2321 1589 1213
07-02 74° 87° 4893 3521 2359 1619 1238
07-03 74° 90° 4953 3571 2399 1651 1265
07-04 74° 91° 5013 3622 2440 1683 1293
07-05 73° 90° 5073 3671 2479 1715 1319
07-06 68° 81° 5126 3714 2512 1740 1339
07-07 58° 80° 5173 3751 2539 1759 1353
07-08 58° 86° 5222 3791 2569 1781 1370
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
07-09 67° 89° 5278 3837 2605 1809 1393
07-10 71° 89° 5337 3885 2643 1839 1418
07-11 69° 86° 5392 3930 2678 1866 1440
07-12 62° 85° 5444 3972 2710 1890 1459
07-13 62° 90° 5498 4016 2744 1916 1480
07-14 67° 91° 5554 4063 2781 1944 1504
07-15 73° 88° 5613 4111 2819 1975 1529
07-16 72° 86° 5670 4158 2856 2004 1553
07-17 68° 86° 5725 4203 2891 2031 1575
07-18 58° 84° 5774 4242 2920 2052 1591
07-19 63° 86° 5826 4285 2953 2077 1611
07-20 69° 87° 5882 4331 2989 2105 1634
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
07-21 68° 73° 5931 4369 3017 2125 1649
07-22 68° 77° 5982 4410 3048 2148 1667
07-23 61° 75° 6028 4446 3074 2166 1680
07-24 63° 82° 6078 4487 3105 2188 1698
07-25 64° 84° 6130 4529 3137 2213 1717
07-26 62° 84° 6181 4570 3168 2236 1735
07-27 60° 77° 6228 4606 3194 2254 1748
07-28 56° 79° 6274 4642 3220 2272 1761
07-29 61° 76° 6321 4679 3247 2291 1775
07-30 64° 71° 6366 4714 3272 2308 1787
07-31 65° 70° 6412 4750 3298 2326 1800
08-01 63° 76° 6460 4788 3326 2346 1815
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
08-02 60° 82° 6509 4827 3355 2367 1831
08-03 64° 84° 6561 4869 3387 2391 1850
08-04 69° 88° 6617 4916 3424 2419 1874
08-05 69° 88° 6674 4962 3460 2448 1897
08-06 71° 89° 6731 5010 3498 2477 1922
08-07 68° 83° 6785 5053 3531 2503 1942
08-08 70° 83° 6840 5098 3566 2530 1964
08-09 64° 84° 6892 5140 3598 2554 1983
08-10 69° 85° 6947 5185 3633 2581 2005
08-11 67° 80° 6998 5227 3665 2604 2024
08-12 62° 84° 7049 5268 3696 2627 2042
08-13 63° 83° 7101 5309 3727 2651 2060
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
08-14 65° 85° 7153 5352 3760 2675 2080
08-15 70° 77° 7205 5393 3791 2699 2098
08-16 68° 79° 7256 5434 3822 2722 2116
08-17 70° 77° 7308 5476 3854 2746 2135
08-18 68° 82° 7361 5519 3887 2771 2155
08-19 66° 84° 7414 5562 3920 2796 2175
08-20 67° 81° 7466 5604 3952 2820 2194
08-21 68° 79° 7517 5645 3983 2843 2212
08-22 60° 74° 7562 5680 4008 2860 2224
08-23 53° 78° 7606 5714 4032 2876 2235
08-24 55° 74° 7648 5747 4055 2890 2245
08-25 68° 79° 7700 5788 4086 2914 2263
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
08-26 74° 89° 7759 5837 4125 2945 2289
08-27 73° 89° 7818 5886 4164 2976 2315
08-28 72° 89° 7876 5935 4203 3007 2341
08-29 71° 86° 7933 5981 4239 3035 2364
08-30 65° 80° 7984 6022 4270 3058 2382
08-31 61° 86° 8035 6064 4302 3081 2401
09-01 69° 83° 8089 6107 4335 3107 2421
09-02 70° 87° 8146 6154 4372 3136 2445
09-03 71° 91° 8204 6203 4411 3166 2471
09-04 71° 91° 8263 6252 4450 3197 2497
09-05 71° 92° 8322 6301 4489 3228 2523
09-06 70° 86° 8379 6347 4525 3257 2546
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
09-07 67° 73° 8427 6385 4553 3277 2561
09-08 60° 66° 8468 6416 4574 3290 2569
09-09 57° 60° 8504 6442 4590 3298 2572
09-10 56° 67° 8544 6472 4610 3310 2579
09-11 55° 74° 8586 6505 4633 3325 2589
09-12 56° 73° 8629 6537 4655 3339 2598
09-13 61° 82° 8679 6577 4685 3361 2615
09-14 63° 86° 8731 6619 4717 3385 2634
09-15 63° 86° 8784 6662 4750 3410 2654
09-16 67° 87° 8839 6707 4785 3437 2676
09-17 69° 88° 8896 6754 4822 3466 2700
09-18 66° 91° 8952 6800 4858 3494 2723
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
09-19 70° 89° 9010 6848 4896 3524 2748
09-20 70° 91° 9068 6896 4934 3554 2773
09-21 67° 83° 9121 6940 4968 3579 2794
09-22 55° 65° 9160 6968 4986 3590 2799
09-23 52° 77° 9202 7000 5008 3604 2808
09-24 60° 70° 9245 7034 5032 3619 2819
09-25 70° 76° 9296 7075 5063 3642 2837
09-26 55° 72° 9338 7106 5084 3656 2845
09-27 50° 62° 9372 7130 5098 3662 2846
09-28 46° 73° 9410 7158 5116 3672 2851
09-29 47° 68° 9445 7183 5131 3679 2853
09-30 54° 80° 9490 7218 5156 3696 2865
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.