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Crabgrass/Annual Bluegrass Preemergence Timer (GDD 32)
through Mon, Dec. 23. 2024

 
  

La Porte, IN

        

Generously Supported By:



Tabular Data

Daily GDD accumulation for various base temperature models in 2024 & 2023

2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
02-15 32° 41° 14 4 0 0 0
02-16 23° 31° 20 4 0 0 0
02-17 13° 25° 20 4 0 0 0
02-18 16° 42° 27 4 0 0 0
02-19 21° 47° 39 7 0 0 0
02-20 26° 55° 58 15 0 0 0
02-21 41° 64° 88 35 10 2 0
02-22 38° 52° 111 48 13 2 0
02-23 30° 44° 126 53 13 2 0
02-24 19° 31° 129 53 13 2 0
02-25 27° 57° 149 63 13 2 0
02-26 35° 68° 178 83 22 4 0
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
02-27 55° 69° 218 113 42 16 7
02-28 21° 62° 238 122 42 16 7
02-29 21° 40° 246 122 42 16 7
03-01 28° 44° 260 126 42 16 7
03-02 38° 56° 285 141 47 16 7
03-03 41° 69° 319 165 61 21 7
03-04 52° 72° 359 195 81 33 14
03-05 39° 64° 389 215 91 35 14
03-06 38° 50° 411 227 93 35 14
03-07 33° 51° 431 237 93 35 14
03-08 43° 54° 457 253 99 35 14
03-09 33° 41° 472 258 99 35 14
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
03-10 29° 39° 484 260 99 35 14
03-11 26° 63° 507 273 102 35 14
03-12 42° 68° 540 296 115 40 15
03-13 46° 71° 577 323 132 49 19
03-14 43° 67° 610 346 145 54 19
03-15 35° 44° 628 354 145 54 19
03-16 34° 59° 652 368 149 54 19
03-17 31° 40° 665 371 149 54 19
03-18 28° 32° 673 371 149 54 19
03-19 27° 55° 692 380 149 54 19
03-20 27° 41° 704 383 149 54 19
03-21 21° 38° 712 383 149 54 19
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
03-22 31° 48° 729 390 149 54 19
03-23 27° 37° 739 390 149 54 19
03-24 27° 47° 754 395 149 54 19
03-25 39° 68° 786 417 161 58 19
03-26 38° 60° 812 433 167 58 19
03-27 31° 43° 827 438 167 58 19
03-28 26° 50° 843 444 167 58 19
03-29 30° 56° 864 455 168 58 19
03-30 40° 62° 893 474 177 58 19
03-31 37° 53° 915 486 179 58 19
04-01 44° 51° 941 502 185 58 19
04-02 37° 59° 967 518 191 58 19
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
04-03 34° 37° 981 522 191 58 19
04-04 36° 40° 997 528 191 58 19
04-05 35° 45° 1015 536 191 58 19
04-06 31° 52° 1034 545 191 58 19
04-07 35° 56° 1058 559 195 58 19
04-08 44° 74° 1095 586 212 67 23
04-09 53° 68° 1133 614 230 78 28
04-10 42° 66° 1166 637 242 82 28
04-11 46° 56° 1195 656 252 83 28
04-12 45° 60° 1225 676 262 86 28
04-13 38° 68° 1257 697 273 89 28
04-14 59° 77° 1302 733 299 107 41
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
04-15 50° 70° 1341 762 317 117 46
04-16 52° 76° 1383 794 340 131 55
04-17 63° 68° 1426 827 363 147 66
04-18 47° 63° 1459 850 376 152 66
04-19 43° 56° 1486 867 383 152 66
04-20 35° 47° 1505 876 383 152 66
04-21 37° 45° 1524 885 383 152 66
04-22 37° 65° 1554 905 392 153 66
04-23 51° 55° 1585 926 403 156 66
04-24 36° 50° 1606 937 405 156 66
04-25 29° 57° 1627 948 406 156 66
04-26 38° 62° 1655 966 413 156 66
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
04-27 59° 77° 1701 1001 439 173 78
04-28 62° 76° 1748 1038 466 192 92
04-29 62° 68° 1791 1072 489 208 103
04-30 47° 74° 1830 1100 508 218 108
05-01 58° 77° 1875 1136 534 236 121
05-02 51° 83° 1920 1171 559 253 133
05-03 52° 66° 1957 1198 576 262 137
05-04 50° 81° 2001 1232 599 278 148
05-05 49° 65° 2036 1257 615 285 150
05-06 46° 74° 2074 1285 632 295 155
05-07 55° 77° 2118 1319 656 311 165
05-08 53° 78° 2161 1352 680 326 176
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
05-09 51° 68° 2199 1380 698 336 181
05-10 47° 66° 2234 1405 712 343 182
05-11 48° 62° 2267 1428 725 348 183
05-12 45° 81° 2308 1459 746 361 191
05-13 61° 81° 2357 1498 775 382 207
05-14 59° 68° 2399 1530 797 396 216
05-15 54° 66° 2437 1558 815 406 221
05-16 50° 75° 2477 1588 836 418 228
05-17 60° 78° 2525 1625 863 437 242
05-18 59° 84° 2574 1665 892 459 259
05-19 63° 77° 2622 1703 921 479 274
05-20 60° 89° 2675 1745 953 503 293
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
05-21 63° 88° 2728 1789 986 529 314
05-22 64° 79° 2778 1829 1016 551 331
05-23 55° 79° 2823 1864 1041 568 343
05-24 61° 81° 2872 1902 1070 588 358
05-25 57° 69° 2913 1934 1091 602 366
05-26 53° 72° 2953 1964 1112 614 374
05-27 58° 69° 2995 1996 1133 628 383
05-28 55° 72° 3036 2027 1155 641 391
05-29 51° 64° 3072 2053 1171 649 394
05-30 45° 70° 3108 2079 1186 657 397
05-31 49° 78° 3149 2110 1208 670 405
06-01 58° 68° 3190 2141 1229 683 413
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
06-02 57° 70° 3232 2173 1250 697 422
06-03 55° 85° 3280 2211 1278 717 437
06-04 67° 86° 3335 2255 1313 743 458
06-05 65° 78° 3384 2295 1343 765 475
06-06 64° 78° 3433 2334 1372 786 491
06-07 58° 76° 3478 2369 1397 803 503
06-08 54° 79° 3523 2404 1421 820 515
06-09 53° 79° 3567 2438 1445 836 526
06-10 52° 62° 3602 2463 1460 843 527
06-11 43° 76° 3639 2490 1478 852 532
06-12 62° 90° 3693 2534 1512 878 553
06-13 71° 90° 3752 2583 1550 909 579
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
06-14 65° 85° 3805 2626 1583 934 598
06-15 60° 84° 3854 2665 1613 955 615
06-16 62° 91° 3909 2710 1648 982 637
06-17 76° 93° 3971 2762 1690 1016 666
06-18 75° 88° 4031 2812 1729 1048 693
06-19 75° 93° 4093 2864 1772 1082 722
06-20 71° 89° 4151 2912 1810 1112 747
06-21 68° 92° 4209 2960 1848 1142 772
06-22 74° 91° 4270 3011 1888 1175 799
06-23 65° 82° 4321 3052 1920 1198 818
06-24 61° 82° 4370 3091 1949 1219 834
06-25 69° 83° 4424 3135 1983 1245 855
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
06-26 68° 83° 4478 3179 2016 1271 876
06-27 61° 72° 4522 3213 2041 1287 887
06-28 61° 76° 4569 3249 2067 1305 900
06-29 72° 89° 4627 3298 2105 1336 926
06-30 57° 77° 4672 3333 2130 1353 938
07-01 48° 75° 4711 3362 2149 1364 944
07-02 60° 82° 4760 3401 2178 1385 960
07-03 73° 86° 4818 3449 2216 1415 984
07-04 68° 80° 4869 3490 2248 1438 1003
07-05 62° 82° 4919 3530 2278 1460 1020
07-06 62° 79° 4968 3569 2306 1481 1036
07-07 60° 87° 5020 3611 2338 1505 1055
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
07-08 68° 85° 5075 3655 2373 1531 1076
07-09 69° 77° 5125 3696 2404 1554 1094
07-10 65° 78° 5175 3736 2434 1576 1111
07-11 61° 79° 5223 3774 2462 1596 1126
07-12 64° 83° 5275 3816 2493 1620 1144
07-13 64° 88° 5329 3860 2527 1646 1165
07-14 67° 83° 5382 3903 2560 1671 1185
07-15 68° 87° 5437 3948 2596 1698 1208
07-16 67° 83° 5490 3991 2629 1723 1228
07-17 64° 78° 5539 4030 2658 1744 1244
07-18 58° 71° 5582 4063 2680 1759 1254
07-19 52° 76° 5624 4095 2702 1773 1263
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
07-20 56° 78° 5669 4130 2728 1790 1275
07-21 59° 80° 5717 4168 2755 1810 1290
07-22 61° 80° 5765 4206 2784 1830 1305
07-23 61° 83° 5816 4247 2814 1853 1322
07-24 64° 76° 5864 4285 2842 1873 1338
07-25 58° 77° 5910 4321 2868 1891 1350
07-26 52° 80° 5953 4354 2892 1906 1361
07-27 57° 82° 6001 4392 2919 1926 1376
07-28 62° 80° 6050 4431 2948 1947 1392
07-29 70° 84° 6105 4476 2983 1974 1414
07-30 67° 87° 6160 4521 3019 2001 1436
07-31 70° 89° 6218 4569 3056 2031 1460
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
08-01 70° 84° 6273 4614 3091 2058 1483
08-02 69° 81° 6326 4657 3125 2083 1503
08-03 66° 89° 6382 4703 3160 2111 1525
08-04 66° 89° 6437 4748 3195 2138 1548
08-05 70° 87° 6493 4794 3232 2166 1571
08-06 69° 80° 6546 4836 3264 2190 1590
08-07 61° 79° 6594 4875 3292 2211 1606
08-08 57° 81° 6641 4912 3320 2230 1620
08-09 64° 72° 6687 4948 3346 2248 1633
08-10 54° 74° 6729 4980 3368 2262 1642
08-11 54° 76° 6772 5013 3391 2277 1652
08-12 53° 77° 6815 5046 3414 2292 1662
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
08-13 53° 82° 6861 5082 3439 2310 1674
08-14 56° 84° 6909 5120 3467 2330 1690
08-15 65° 75° 6957 5158 3496 2350 1705
08-16 67° 85° 7011 5202 3530 2376 1726
08-17 67° 76° 7060 5241 3559 2397 1742
08-18 66° 73° 7108 5279 3586 2417 1757
08-19 62° 73° 7154 5315 3612 2435 1769
08-20 51° 70° 7192 5343 3630 2445 1775
08-21 48° 73° 7230 5371 3649 2455 1780
08-22 49° 77° 7272 5403 3670 2469 1788
08-23 51° 80° 7315 5436 3694 2484 1799
08-24 56° 88° 7365 5476 3724 2506 1816
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
08-25 67° 90° 7422 5523 3761 2535 1840
08-26 73° 93° 7483 5574 3802 2568 1868
08-27 72° 96° 7545 5626 3844 2602 1897
08-28 70° 84° 7600 5671 3879 2629 1919
08-29 68° 87° 7655 5716 3914 2656 1941
08-30 72° 89° 7714 5765 3952 2687 1967
08-31 67° 81° 7766 5807 3985 2711 1986
09-01 61° 76° 7813 5844 4011 2730 1999
09-02 49° 73° 7852 5873 4030 2741 2006
09-03 49° 76° 7892 5903 4051 2753 2013
09-04 50° 82° 7936 5937 4075 2769 2024
09-05 59° 86° 7987 5978 4105 2792 2041
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
09-06 57° 75° 8031 6012 4129 2808 2053
09-07 51° 63° 8066 6036 4144 2814 2054
09-08 43° 69° 8100 6061 4158 2821 2056
09-09 49° 79° 8142 6093 4181 2835 2065
09-10 51° 81° 8187 6127 4205 2851 2076
09-11 52° 86° 8234 6165 4232 2871 2091
09-12 57° 88° 8284 6205 4263 2893 2108
09-13 60° 85° 8335 6246 4293 2916 2125
09-14 61° 88° 8387 6288 4326 2940 2145
09-15 60° 89° 8440 6331 4358 2965 2165
09-16 57° 88° 8491 6371 4389 2987 2182
09-17 54° 84° 8537 6408 4416 3006 2196
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
09-18 53° 86° 8585 6446 4443 3026 2210
09-19 55° 88° 8634 6485 4472 3047 2227
09-20 62° 84° 8685 6526 4504 3070 2245
09-21 58° 91° 8737 6568 4536 3094 2264
09-22 64° 69° 8782 6603 4561 3111 2276
09-23 61° 67° 8824 6635 4582 3125 2285
09-24 62° 70° 8868 6669 4607 3141 2296
09-25 57° 73° 8911 6702 4630 3156 2306
09-26 51° 76° 8953 6734 4651 3170 2314
09-27 60° 72° 8997 6768 4676 3186 2326
09-28 61° 70° 9040 6801 4699 3201 2336
09-29 63° 74° 9087 6838 4725 3220 2350
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
09-30 58° 75° 9131 6872 4750 3236 2361
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
02-29 n/a n/a n/a n/a n/a n/a n/a
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
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
03-10 32° 35° 362 137 14 0 0
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
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
03-22 39° 50° 506 186 17 0 0
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
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
04-03 40° 61° 743 303 43 8 3
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
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
04-15 62° 80° 1167 607 227 113 65
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
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
04-27 31° 65° 1467 787 303 145 81
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
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
05-09 48° 69° 1847 1047 445 218 124
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
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
05-21 46° 75° 2327 1407 684 362 210
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
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
06-02 64° 90° 2870 1830 987 568 357
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
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
06-14 56° 64° 3379 2219 1256 742 470
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
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
06-26 65° 72° 3951 2670 1588 977 646
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
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
07-08 61° 71° 4549 3149 1946 1239 848
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
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
07-20 65° 86° 5137 3617 2295 1492 1041
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
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
08-01 58° 81° 5745 4104 2662 1763 1252
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
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
08-13 62° 80° 6332 4572 3009 2015 1444
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
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
08-25 70° 80° 6940 5060 3377 2287 1655
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
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
09-06 67° 82° 7511 5511 3708 2521 1830
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
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
09-18 49° 67° 7979 5858 3936 2653 1902
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 60° 71° 8327 6127 4124 2778 1987
09-27 61° 66° 8369 6159 4146 2792 1995
09-28 58° 68° 8410 6189 4167 2804 2003
09-29 56° 72° 8452 6222 4189 2818 2012
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
09-30 52° 82° 8497 6256 4214 2835 2024

 

Latest Updates

March 18th, 2024Timing crabgrass preemergence applications in spring

Don't miss this update from from Kevin Frank regarding timing of crabgrass preemergence herbicides.


 

February 12th, 2024Welcome to the 2024 GDD Tracking Season

2024 might be the year that if you blinked you missed winter. We've already experienced some very unseasonably warm weather in February with temperatures in the 60's. Temperatures are remaining relatively mild but I wouldn't be surprised if winter resurfaced yet as we move through the rest of February and March. 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 2024!
 

 

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