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Bluegrass Billbug Activity - OSU (GDD 50)
through Mon, Sep. 25. 2023

 

GDD Total: 2762 (Base 50) through Mon, Sep. 25, 2023

  

La Porte, IN

        

Forecast »

“Flashback” to 2022

9/19

9/20

9/21

9/22

9/23

9/24

9/25

9/26

9/27

9/28

9/29

9/30

10/1

Visual turfgrass damage

1330

Larvae emergence - contacts

926

Larvae hatch; stem tunneling

650

Egg Lay - systemics

560

First Emergence

280

Under

0

 

Generously Supported By:



Tabular Data

Daily GDD accumulation for various base temperature models in 2023 & 2022

2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
02-15 38° 53° 23 13 3 0 0
02-16 30° 39° 36 16 3 0 0
02-17 19° 29° 38 16 3 0 0
02-18 19° 43° 48 16 3 0 0
02-19 36° 53° 70 28 5 0 0
02-20 31° 47° 87 35 5 0 0
02-21 28° 38° 98 36 5 0 0
02-22 31° 35° 109 37 5 0 0
02-23 28° 48° 125 43 5 0 0
02-24 23° 29° 129 43 5 0 0
02-25 25° 36° 138 43 5 0 0
02-26 26° 48° 153 48 5 0 0
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
02-27 35° 55° 176 61 8 0 0
02-28 37° 48° 196 71 9 0 0
03-01 35° 56° 220 85 12 0 0
03-02 33° 41° 235 90 12 0 0
03-03 31° 38° 247 93 12 0 0
03-04 28° 43° 261 96 12 0 0
03-05 30° 50° 279 104 12 0 0
03-06 39° 49° 301 116 14 0 0
03-07 33° 44° 317 123 14 0 0
03-08 32° 47° 334 130 14 0 0
03-09 32° 43° 350 136 14 0 0
03-10 32° 35° 362 137 14 0 0
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
03-11 32° 42° 377 142 14 0 0
03-12 31° 34° 387 142 14 0 0
03-13 24° 31° 392 142 14 0 0
03-14 21° 31° 396 142 14 0 0
03-15 18° 46° 406 142 14 0 0
03-16 37° 48° 427 153 15 0 0
03-17 28° 50° 444 160 15 0 0
03-18 15° 27° 444 160 15 0 0
03-19 19° 38° 450 160 15 0 0
03-20 24° 48° 464 163 15 0 0
03-21 33° 51° 484 174 15 0 0
03-22 39° 50° 506 186 17 0 0
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
03-23 35° 50° 526 196 18 0 0
03-24 34° 47° 545 205 18 0 0
03-25 34° 40° 560 209 18 0 0
03-26 31° 53° 580 220 18 0 0
03-27 32° 44° 596 226 18 0 0
03-28 27° 49° 612 232 18 0 0
03-29 26° 42° 624 234 18 0 0
03-30 20° 53° 639 238 18 0 0
03-31 50° 65° 674 264 34 8 3
04-01 34° 53° 696 276 35 8 3
04-02 29° 54° 715 285 35 8 3
04-03 40° 61° 743 303 43 8 3
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
04-04 48° 65° 778 328 58 15 4
04-05 41° 72° 812 352 73 21 6
04-06 34° 50° 832 362 73 21 6
04-07 33° 52° 852 372 73 21 6
04-08 37° 60° 879 389 79 21 6
04-09 39° 65° 909 409 90 23 6
04-10 43° 68° 943 433 103 29 6
04-11 48° 76° 983 463 123 41 13
04-12 56° 81° 1029 499 150 59 27
04-13 53° 81° 1074 534 174 76 38
04-14 51° 82° 1118 568 199 92 50
04-15 62° 80° 1167 607 227 113 65
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
04-16 37° 67° 1197 627 238 115 65
04-17 31° 38° 1210 629 238 115 65
04-18 33° 56° 1232 642 241 115 65
04-19 37° 76° 1267 667 255 122 67
04-20 59° 80° 1314 704 282 141 81
04-21 46° 62° 1346 726 295 145 81
04-22 37° 51° 1369 739 297 145 81
04-23 35° 42° 1385 745 297 145 81
04-24 31° 50° 1404 754 297 145 81
04-25 35° 46° 1422 762 297 145 81
04-26 31° 50° 1441 771 297 145 81
04-27 31° 65° 1467 787 303 145 81
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
04-28 46° 56° 1496 806 312 146 81
04-29 36° 66° 1525 825 321 147 81
04-30 38° 48° 1546 836 322 147 81
05-01 37° 44° 1565 845 322 147 81
05-02 40° 47° 1587 856 324 147 81
05-03 40° 48° 1609 868 326 147 81
05-04 37° 68° 1639 889 336 150 81
05-05 48° 75° 1679 919 356 162 88
05-06 56° 77° 1723 953 381 178 99
05-07 63° 81° 1774 993 411 200 117
05-08 54° 65° 1811 1021 428 210 121
05-09 48° 69° 1847 1047 445 218 124
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
05-10 46° 78° 1887 1077 464 230 131
05-11 53° 82° 1933 1113 490 248 144
05-12 65° 79° 1983 1153 520 270 161
05-13 65° 72° 2030 1189 547 288 175
05-14 59° 67° 2071 1220 568 301 183
05-15 51° 67° 2108 1247 585 310 187
05-16 46° 76° 2147 1277 604 322 193
05-17 46° 65° 2181 1300 618 327 194
05-18 42° 72° 2216 1326 633 334 196
05-19 55° 72° 2257 1357 654 348 204
05-20 46° 60° 2288 1378 666 351 204
05-21 46° 75° 2327 1407 684 362 210
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
05-22 50° 78° 2369 1439 706 376 219
05-23 55° 82° 2416 1476 733 394 233
05-24 56° 73° 2458 1508 755 409 242
05-25 46° 63° 2491 1530 768 413 242
05-26 42° 70° 2525 1554 782 419 243
05-27 45° 77° 2563 1583 801 430 249
05-28 53° 78° 2607 1617 824 446 260
05-29 53° 83° 2653 1653 850 464 272
05-30 59° 88° 2705 1694 882 487 291
05-31 66° 89° 2760 1740 917 515 313
06-01 66° 88° 2815 1785 952 541 335
06-02 64° 90° 2870 1830 987 568 357
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
06-03 65° 86° 2923 1873 1020 594 378
06-04 62° 79° 2972 1912 1049 615 393
06-05 51° 79° 3015 1945 1072 630 404
06-06 59° 77° 3061 1981 1098 648 416
06-07 53° 73° 3102 2012 1119 661 424
06-08 48° 72° 3140 2040 1137 670 429
06-09 49° 74° 3179 2069 1157 682 436
06-10 53° 85° 3227 2106 1184 701 450
06-11 54° 71° 3267 2137 1204 714 458
06-12 53° 66° 3304 2164 1221 723 462
06-13 54° 63° 3341 2191 1238 731 465
06-14 56° 64° 3379 2219 1256 742 470
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
06-15 53° 78° 3422 2252 1279 757 481
06-16 52° 65° 3458 2278 1295 765 484
06-17 48° 76° 3498 2308 1315 777 491
06-18 54° 83° 3545 2345 1342 796 505
06-19 62° 84° 3596 2386 1373 818 522
06-20 61° 84° 3646 2426 1404 841 540
06-21 64° 87° 3700 2470 1437 867 560
06-22 62° 81° 3750 2509 1467 888 577
06-23 65° 81° 3801 2550 1498 911 595
06-24 61° 86° 3852 2592 1529 935 614
06-25 66° 82° 3904 2634 1561 959 633
06-26 65° 72° 3951 2670 1588 977 646
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
06-27 58° 66° 3991 2701 1608 990 654
06-28 52° 80° 4035 2735 1632 1006 665
06-29 66° 85° 4089 2779 1666 1031 685
06-30 69° 87° 4145 2824 1702 1059 708
07-01 70° 81° 4198 2868 1736 1085 729
07-02 67° 76° 4248 2907 1765 1106 745
07-03 65° 79° 4298 2948 1795 1128 762
07-04 63° 89° 4352 2991 1829 1154 783
07-05 69° 90° 4409 3039 1866 1184 808
07-06 65° 75° 4457 3077 1894 1204 823
07-07 59° 81° 4505 3115 1922 1224 837
07-08 61° 71° 4549 3149 1946 1239 848
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
07-09 54° 81° 4594 3184 1971 1257 861
07-10 58° 82° 4643 3223 2000 1278 876
07-11 64° 87° 4696 3266 2033 1303 897
07-12 59° 77° 4743 3302 2060 1321 910
07-13 65° 75° 4791 3340 2088 1341 925
07-14 62° 88° 4844 3384 2121 1367 946
07-15 67° 82° 4897 3426 2154 1391 965
07-16 64° 80° 4946 3466 2184 1413 982
07-17 62° 78° 4994 3504 2212 1433 997
07-18 55° 76° 5038 3537 2235 1448 1007
07-19 55° 82° 5084 3574 2261 1467 1020
07-20 65° 86° 5137 3617 2295 1492 1041
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
07-21 62° 74° 5184 3653 2321 1510 1054
07-22 55° 83° 5231 3691 2348 1529 1068
07-23 63° 82° 5281 3731 2379 1552 1086
07-24 60° 84° 5331 3771 2409 1574 1103
07-25 60° 88° 5383 3813 2441 1598 1122
07-26 71° 87° 5440 3860 2478 1627 1146
07-27 70° 91° 5499 3909 2516 1657 1171
07-28 71° 90° 5557 3957 2554 1688 1197
07-29 65° 77° 5606 3996 2583 1709 1213
07-30 59° 77° 5652 4032 2610 1727 1226
07-31 55° 78° 5697 4067 2634 1744 1238
08-01 58° 81° 5745 4104 2662 1763 1252
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
08-02 60° 81° 5793 4143 2690 1784 1268
08-03 60° 84° 5843 4183 2720 1806 1285
08-04 65° 83° 5895 4225 2752 1829 1303
08-05 64° 75° 5943 4262 2780 1849 1318
08-06 63° 70° 5987 4297 2804 1866 1329
08-07 64° 74° 6034 4334 2831 1885 1343
08-08 57° 82° 6081 4371 2858 1904 1358
08-09 61° 80° 6130 4409 2887 1924 1373
08-10 62° 80° 6179 4448 2916 1945 1389
08-11 66° 83° 6231 4491 2948 1970 1409
08-12 68° 81° 6283 4533 2981 1994 1428
08-13 62° 80° 6332 4572 3009 2015 1444
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
08-14 63° 77° 6380 4610 3037 2035 1459
08-15 61° 73° 6425 4645 3062 2052 1471
08-16 54° 79° 6469 4679 3086 2068 1482
08-17 61° 78° 6517 4717 3114 2088 1496
08-18 56° 73° 6559 4749 3136 2102 1506
08-19 53° 76° 6602 4782 3159 2117 1515
08-20 66° 87° 6657 4826 3194 2143 1537
08-21 68° 81° 6709 4869 3226 2168 1556
08-22 66° 84° 6762 4912 3259 2193 1577
08-23 68° 94° 6821 4961 3298 2224 1603
08-24 79° 96° 6887 5017 3344 2262 1636
08-25 70° 80° 6940 5060 3377 2287 1655
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
08-26 66° 75° 6989 5099 3406 2307 1671
08-27 56° 75° 7032 5132 3429 2323 1682
08-28 51° 75° 7074 5163 3451 2336 1690
08-29 54° 81° 7119 5199 3476 2354 1703
08-30 55° 67° 7158 5228 3495 2365 1709
08-31 47° 75° 7197 5257 3514 2376 1714
09-01 50° 81° 7240 5290 3538 2391 1725
09-02 53° 85° 7287 5327 3565 2410 1739
09-03 65° 90° 7343 5373 3600 2438 1761
09-04 67° 89° 7399 5419 3636 2466 1784
09-05 72° 90° 7458 5468 3675 2497 1810
09-06 67° 82° 7511 5511 3708 2521 1830
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
09-07 63° 68° 7555 5544 3732 2537 1841
09-08 58° 67° 7595 5575 3752 2550 1849
09-09 54° 72° 7636 5606 3773 2563 1856
09-10 50° 76° 7677 5637 3794 2576 1865
09-11 58° 66° 7717 5667 3814 2588 1872
09-12 55° 67° 7756 5696 3833 2599 1878
09-13 48° 66° 7791 5721 3848 2606 1880
09-14 46° 70° 7827 5747 3864 2613 1882
09-15 47° 73° 7865 5775 3882 2624 1887
09-16 49° 73° 7904 5803 3901 2634 1893
09-17 56° 66° 7943 5832 3920 2645 1899
09-18 49° 67° 7979 5858 3936 2653 1902
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
09-19 49° 62° 8012 5882 3949 2659 1903
09-20 54° 80° 8057 5917 3974 2676 1915
09-21 61° 78° 8105 5955 4002 2696 1930
09-22 60° 80° 8153 5993 4031 2716 1945
09-23 56° 77° 8198 6028 4055 2732 1956
09-24 50° 77° 8239 6059 4076 2746 1965
09-25 54° 78° 8284 6093 4101 2762 1976
09-26 59° 75° 8329 6128 4126 2779 1988
09-27 58° 68° 8370 6159 4147 2792 1996
09-28 57° 69° 8410 6190 4167 2805 2004
09-29 54° 72° 8451 6221 4189 2818 2012
09-30 56° 77° 8496 6256 4213 2834 2023
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
2022Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
02-15 16° 35° 4 0 0 0 0
02-16 37° 53° 26 13 3 0 0
02-17 24° 51° 42 18 3 0 0
02-18 9° 30° 42 18 3 0 0
02-19 10° 31° 42 18 3 0 0
02-20 13° 46° 49 18 3 0 0
02-21 33° 53° 70 29 4 0 0
02-22 26° 52° 87 36 4 0 0
02-23 20° 25° 88 36 4 0 0
02-24 22° 29° 92 36 4 0 0
02-25 20° 28° 93 36 4 0 0
02-26 12° 30° 93 36 4 0 0
2022Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
02-27 24° 40° 104 36 4 0 0
02-28 23° 50° 118 41 4 0 0
03-01 31° 47° 135 48 4 0 0
03-02 26° 57° 155 58 4 0 0
03-03 26° 33° 163 58 4 0 0
03-04 23° 43° 174 59 4 0 0
03-05 37° 70° 205 80 16 4 0
03-06 36° 62° 233 97 23 4 0
03-07 32° 36° 244 99 23 4 0
03-08 29° 37° 255 100 23 4 0
03-09 25° 46° 269 104 23 4 0
03-10 23° 31° 274 104 23 4 0
2022Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
03-11 20° 30° 277 104 23 4 0
03-12 12° 21° 277 104 23 4 0
03-13 16° 51° 288 105 23 4 0
03-14 35° 60° 314 121 29 4 0
03-15 35° 52° 336 133 30 4 0
03-16 35° 69° 365 152 40 5 0
03-17 46° 71° 402 179 56 14 3
03-18 44° 56° 429 196 64 14 3
03-19 37° 49° 451 208 65 14 3
03-20 32° 61° 475 222 70 14 3
03-21 38° 73° 509 246 84 19 4
03-22 46° 57° 539 266 93 21 4
2022Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
03-23 48° 61° 571 288 106 26 4
03-24 40° 48° 593 300 108 26 4
03-25 35° 45° 612 309 108 26 4
03-26 24° 35° 619 309 108 26 4
03-27 23° 27° 622 309 108 26 4
03-28 18° 31° 625 309 108 26 4
03-29 23° 41° 635 309 108 26 4
03-30 39° 64° 664 328 118 27 4
03-31 33° 57° 687 341 121 27 4
04-01 32° 39° 701 345 121 27 4
04-02 29° 45° 716 350 121 27 4
04-03 33° 48° 734 358 121 27 4
2022Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
04-04 40° 54° 759 374 126 27 4
04-05 34° 59° 784 388 130 27 4
04-06 47° 55° 813 407 139 28 4
04-07 39° 45° 833 417 140 28 4
04-08 34° 42° 849 423 140 28 4
04-09 32° 42° 864 428 140 28 4
04-10 29° 60° 886 440 142 28 4
04-11 46° 59° 917 461 153 31 4
04-12 35° 70° 947 482 163 34 4
04-13 53° 67° 986 510 182 44 9
04-14 35° 53° 1008 522 183 44 9
04-15 41° 58° 1035 539 191 44 9
2022Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
04-16 33° 45° 1052 546 191 44 9
04-17 28° 45° 1067 551 191 44 9
04-18 31° 39° 1080 554 191 44 9
04-19 35° 45° 1098 562 191 44 9
04-20 35° 54° 1120 574 193 44 9
04-21 50° 69° 1157 601 210 53 14
04-22 47° 57° 1187 622 220 55 14
04-23 48° 84° 1231 655 244 71 24
04-24 65° 73° 1278 693 271 90 39
04-25 43° 62° 1309 713 282 93 39
04-26 35° 47° 1328 722 282 93 39
04-27 31° 40° 1341 725 282 93 39
2022Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
04-28 36° 50° 1362 736 283 93 39
04-29 45° 64° 1395 759 295 97 39
04-30 49° 69° 1432 786 312 107 43
05-01 50° 60° 1465 809 325 112 43
05-02 48° 54° 1494 828 334 113 43
05-03 44° 54° 1521 845 342 113 43
05-04 43° 56° 1549 863 349 113 43
05-05 41° 57° 1576 880 356 113 43
05-06 49° 53° 1605 899 365 113 43
05-07 43° 65° 1637 921 377 118 43
05-08 42° 66° 1669 943 389 121 43
05-09 53° 80° 1713 977 413 138 54
2022Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
05-10 67° 87° 1768 1022 448 165 76
05-11 72° 90° 1827 1071 487 196 102
05-12 70° 88° 1884 1118 524 225 126
05-13 61° 89° 1937 1161 557 250 146
05-14 62° 80° 1986 1200 587 271 162
05-15 56° 76° 2030 1234 611 287 173
05-16 52° 75° 2072 1266 632 301 182
05-17 50° 67° 2108 1292 648 309 185
05-18 55° 63° 2145 1319 665 318 189
05-19 51° 83° 2190 1354 690 335 201
05-20 65° 86° 2243 1397 723 360 221
05-21 56° 64° 2281 1425 742 370 226
2022Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
05-22 48° 59° 2313 1447 753 374 226
05-23 42° 63° 2343 1467 763 376 226
05-24 46° 70° 2379 1493 780 384 229
05-25 57° 80° 2426 1530 806 403 243
05-26 67° 77° 2476 1570 837 425 260
05-27 50° 67° 2513 1597 853 434 264
05-28 44° 74° 2550 1624 870 443 268
05-29 60° 84° 2600 1664 901 465 285
05-30 67° 88° 2655 1710 936 492 308
05-31 72° 90° 2715 1759 975 523 334
06-01 59° 79° 2761 1796 1002 542 348
06-02 56° 73° 2804 1828 1025 557 357
2022Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
06-03 54° 79° 2849 1863 1049 574 369
06-04 48° 74° 2888 1892 1068 585 375
06-05 60° 82° 2937 1931 1097 606 391
06-06 64° 79° 2987 1971 1127 628 408
06-07 55° 66° 3025 1999 1145 638 413
06-08 51° 71° 3064 2028 1165 649 419
06-09 53° 76° 3106 2061 1187 663 429
06-10 52° 80° 3151 2095 1211 679 440
06-11 53° 74° 3192 2127 1233 693 449
06-12 63° 77° 3240 2164 1261 713 464
06-13 61° 90° 3294 2208 1295 739 484
06-14 77° 95° 3358 2262 1338 775 515
2022Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
06-15 76° 94° 3421 2315 1382 810 545
06-16 75° 94° 3483 2368 1424 844 575
06-17 68° 81° 3536 2410 1456 869 594
06-18 55° 69° 3576 2440 1476 880 601
06-19 49° 82° 3619 2473 1500 896 611
06-20 59° 91° 3672 2516 1533 921 632
06-21 67° 96° 3732 2566 1572 953 658
06-22 72° 86° 3789 2613 1609 982 682
06-23 61° 81° 3838 2652 1638 1003 698
06-24 55° 89° 3888 2692 1668 1025 715
06-25 60° 76° 3934 2728 1695 1043 729
06-26 66° 76° 3984 2768 1724 1065 745
2022Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
06-27 57° 72° 4026 2801 1747 1079 755
06-28 50° 82° 4071 2835 1771 1096 766
06-29 63° 86° 4123 2878 1804 1120 786
06-30 67° 90° 4180 2924 1841 1149 810
07-01 64° 80° 4230 2964 1871 1171 827
07-02 59° 80° 4277 3002 1898 1190 841
07-03 60° 84° 4328 3042 1928 1213 858
07-04 63° 87° 4381 3085 1961 1238 878
07-05 68° 94° 4440 3134 2000 1269 904
07-06 71° 79° 4493 3177 2033 1294 924
07-07 66° 82° 4545 3219 2066 1318 943
07-08 71° 79° 4598 3262 2099 1343 963
2022Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
07-09 64° 79° 4648 3302 2128 1365 980
07-10 55° 83° 4695 3339 2155 1383 994
07-11 62° 84° 4746 3380 2187 1407 1012
07-12 67° 82° 4799 3423 2219 1432 1032
07-13 63° 79° 4848 3462 2248 1453 1048
07-14 57° 77° 4893 3497 2273 1470 1060
07-15 58° 73° 4936 3531 2297 1485 1071
07-16 68° 80° 4988 3573 2329 1509 1090
07-17 70° 76° 5039 3613 2360 1532 1108
07-18 68° 85° 5094 3658 2394 1559 1129
07-19 67° 86° 5148 3703 2429 1585 1151
07-20 74° 89° 5208 3752 2468 1617 1177
2022Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
07-21 68° 90° 5265 3799 2505 1645 1201
07-22 69° 88° 5321 3846 2542 1674 1225
07-23 66° 84° 5374 3888 2575 1699 1245
07-24 72° 82° 5429 3934 2610 1726 1267
07-25 63° 75° 5477 3971 2637 1746 1281
07-26 59° 79° 5524 4008 2664 1764 1295
07-27 68° 83° 5577 4051 2698 1790 1315
07-28 64° 81° 5627 4091 2728 1812 1333
07-29 59° 77° 5673 4128 2754 1830 1346
07-30 56° 81° 5720 4164 2781 1849 1359
07-31 61° 82° 5770 4204 2810 1870 1376
08-01 68° 85° 5824 4248 2845 1897 1398
2022Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
08-02 63° 86° 5877 4291 2877 1922 1417
08-03 69° 91° 5935 4339 2915 1952 1442
08-04 70° 84° 5990 4384 2950 1979 1464
08-05 71° 84° 6046 4430 2986 2006 1487
08-06 70° 89° 6103 4477 3024 2036 1512
08-07 74° 81° 6159 4523 3059 2064 1534
08-08 68° 83° 6212 4567 3093 2089 1555
08-09 62° 74° 6258 4603 3119 2107 1568
08-10 55° 79° 6304 4638 3144 2124 1580
08-11 63° 77° 6352 4676 3172 2145 1595
08-12 54° 76° 6395 4709 3195 2160 1605
08-13 56° 75° 6439 4743 3219 2175 1616
2022Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
08-14 65° 73° 6485 4780 3246 2194 1630
08-15 62° 78° 6533 4817 3274 2214 1645
08-16 58° 79° 6580 4854 3301 2233 1659
08-17 56° 79° 6626 4890 3326 2251 1671
08-18 56° 81° 6672 4927 3353 2269 1685
08-19 61° 84° 6723 4967 3383 2292 1702
08-20 65° 79° 6773 5007 3413 2314 1719
08-21 65° 77° 6821 5046 3442 2334 1735
08-22 64° 79° 6871 5085 3471 2356 1751
08-23 56° 81° 6917 5122 3498 2374 1765
08-24 57° 83° 6965 5160 3526 2394 1780
08-25 60° 78° 7012 5197 3553 2413 1794
2022Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
08-26 61° 76° 7059 5233 3579 2432 1807
08-27 55° 82° 7105 5270 3606 2450 1821
08-28 64° 89° 7160 5314 3640 2477 1842
08-29 70° 86° 7216 5360 3676 2505 1865
08-30 64° 78° 7265 5399 3705 2526 1881
08-31 57° 82° 7313 5437 3733 2545 1896
09-01 63° 86° 7365 5479 3765 2570 1915
09-02 65° 84° 7417 5521 3798 2594 1934
09-03 64° 79° 7467 5561 3827 2616 1951
09-04 68° 73° 7515 5599 3856 2636 1966
09-05 63° 73° 7561 5635 3881 2654 1979
09-06 64° 77° 7610 5674 3910 2674 1995
2022Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
09-07 60° 77° 7656 5710 3937 2693 2008
09-08 51° 81° 7700 5744 3960 2709 2019
09-09 53° 82° 7745 5780 3986 2726 2032
09-10 59° 83° 7794 5819 4015 2747 2048
09-11 60° 69° 7837 5851 4037 2762 2057
09-12 52° 59° 7870 5875 4051 2767 2058
09-13 50° 71° 7909 5903 4069 2778 2063
09-14 51° 78° 7951 5935 4092 2792 2073
09-15 56° 80° 7997 5971 4118 2810 2086
09-16 59° 81° 8045 6009 4146 2830 2101
09-17 62° 84° 8096 6051 4177 2853 2119
09-18 66° 84° 8149 6093 4210 2878 2139
2022Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
09-19 58° 75° 8194 6128 4234 2895 2150
09-20 53° 84° 8241 6165 4261 2913 2164
09-21 66° 85° 8294 6208 4295 2939 2184
09-22 55° 64° 8332 6236 4312 2949 2189
09-23 40° 63° 8361 6256 4322 2950 2189
09-24 53° 73° 8403 6287 4343 2964 2197
09-25 55° 65° 8441 6315 4361 2974 2203
09-26 51° 59° 8474 6338 4375 2979 2203
09-27 48° 56° 8504 6358 4385 2981 2203
09-28 48° 58° 8535 6379 4396 2984 2203
09-29 36° 62° 8562 6397 4403 2984 2203
09-30 39° 65° 8592 6417 4413 2986 2203
2022Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55

 

Latest Updates

February 16th, 2023Welcome to the 2023 GDD Tracking Season

The roller coaster of late winter and early spring has begun in Michigan. Near 60°F a few days ago and now snow in the forecast once again. Despite the variable low and high temperatures for this time of year, GDDTracker starts counting on February 15. Spring is typically the time of year when GDDTracker receives the most attention for alerting turfgrass managers of optimal application timing windows for suppressing annual bluegrass seedheads and crabgrass preemergence applications. However, there are many models you may find helpful throughout the season including the early season DMI timer and Smith-Kerns dollar spot prediction model. To learn about all the available models, click on the "About" tab at the top of the screen. Thanks for your continued support and use of GDDTracker and best wishes for a fantastic 2023!
 

 

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