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Crabgrass/Annual Bluegrass Preemergence Timer (GDD 32)
through Fri, Nov. 8. 2024

 
  

Andrew, IL

        

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 34° 48° 19 9 0 0 0
02-16 24° 35° 26 9 0 0 0
02-17 7° 21° 26 9 0 0 0
02-18 18° 37° 32 9 0 0 0
02-19 21° 52° 46 13 0 0 0
02-20 31° 60° 70 27 4 0 0
02-21 40° 69° 103 50 16 5 0
02-22 46° 64° 136 73 29 10 0
02-23 36° 58° 161 88 35 10 0
02-24 27° 42° 173 90 35 10 0
02-25 33° 67° 201 108 43 10 0
02-26 36° 75° 235 132 57 16 1
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
02-27 47° 80° 276 163 78 29 9
02-28 20° 38° 283 163 78 29 9
02-29 21° 49° 296 166 78 29 9
03-01 32° 43° 312 172 78 29 9
03-02 32° 62° 337 187 83 29 9
03-03 45° 74° 374 214 100 38 14
03-04 56° 74° 417 247 123 54 24
03-05 46° 68° 452 272 138 60 26
03-06 38° 50° 474 284 140 60 26
03-07 37° 51° 496 297 143 60 26
03-08 45° 58° 526 316 152 62 26
03-09 35° 45° 544 324 152 62 26
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
03-10 30° 49° 562 332 152 62 26
03-11 33° 67° 589 350 160 62 26
03-12 44° 72° 625 375 176 70 29
03-13 49° 73° 664 405 195 81 35
03-14 50° 73° 704 434 214 92 41
03-15 42° 59° 732 453 223 93 41
03-16 40° 64° 762 472 233 95 41
03-17 31° 45° 778 478 233 95 41
03-18 25° 37° 787 478 233 95 41
03-19 29° 63° 811 492 237 95 41
03-20 35° 49° 831 502 237 95 41
03-21 30° 51° 849 510 237 95 41
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
03-22 33° 61° 874 525 242 95 41
03-23 31° 44° 890 531 242 95 41
03-24 35° 59° 915 546 247 95 41
03-25 53° 62° 950 572 262 102 44
03-26 37° 52° 972 584 265 102 44
03-27 32° 47° 990 591 265 102 44
03-28 31° 62° 1014 606 269 102 44
03-29 42° 71° 1048 630 283 108 45
03-30 56° 70° 1089 661 304 121 53
03-31 48° 71° 1127 688 322 131 57
04-01 48° 67° 1162 714 337 138 60
04-02 41° 62° 1192 733 346 139 60
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
04-03 36° 42° 1209 740 346 139 60
04-04 36° 42° 1226 747 346 139 60
04-05 37° 47° 1246 757 346 139 60
04-06 31° 55° 1267 768 348 139 60
04-07 45° 64° 1300 791 360 144 60
04-08 48° 74° 1339 820 379 155 66
04-09 50° 67° 1375 847 396 163 69
04-10 47° 62° 1408 870 409 168 69
04-11 51° 67° 1445 897 426 177 73
04-12 47° 66° 1480 921 440 184 75
04-13 40° 76° 1515 947 456 192 78
04-14 62° 84° 1567 988 487 215 96
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
04-15 57° 76° 1611 1023 512 232 107
04-16 67° 79° 1662 1064 543 254 125
04-17 64° 70° 1707 1099 568 272 137
04-18 50° 75° 1748 1130 589 284 145
04-19 42° 57° 1776 1147 596 284 145
04-20 38° 51° 1798 1160 599 284 145
04-21 33° 50° 1818 1169 599 284 145
04-22 38° 67° 1848 1189 609 287 145
04-23 51° 59° 1881 1212 622 292 145
04-24 43° 57° 1909 1230 630 292 145
04-25 36° 59° 1934 1246 635 292 145
04-26 49° 66° 1970 1271 651 299 148
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
04-27 60° 78° 2017 1308 678 318 162
04-28 64° 72° 2063 1344 704 336 175
04-29 56° 71° 2105 1376 726 350 184
04-30 51° 79° 2147 1409 748 365 193
05-01 63° 77° 2196 1447 777 385 209
05-02 60° 83° 2245 1487 806 406 225
05-03 61° 71° 2289 1521 830 423 236
05-04 55° 82° 2336 1557 857 441 250
05-05 51° 67° 2372 1584 873 450 253
05-06 57° 72° 2415 1617 896 464 263
05-07 63° 81° 2465 1656 926 486 280
05-08 54° 74° 2507 1688 948 500 289
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
05-09 58° 72° 2549 1721 971 515 298
05-10 53° 70° 2589 1750 990 526 305
05-11 54° 75° 2631 1783 1013 541 314
05-12 52° 82° 2676 1818 1038 558 326
05-13 60° 76° 2722 1854 1064 576 339
05-14 62° 70° 2766 1888 1087 592 350
05-15 54° 76° 2809 1921 1110 607 360
05-16 60° 71° 2853 1954 1134 622 371
05-17 59° 81° 2901 1993 1162 642 386
05-18 61° 86° 2952 2034 1193 666 404
05-19 67° 90° 3009 2080 1230 694 428
05-20 70° 86° 3065 2126 1266 722 451
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
05-21 68° 89° 3121 2173 1302 751 474
05-22 60° 76° 3167 2209 1328 769 487
05-23 53° 80° 3212 2243 1353 785 499
05-24 63° 74° 3258 2280 1380 804 512
05-25 59° 75° 3303 2315 1404 821 524
05-26 63° 82° 3354 2355 1435 843 542
05-27 58° 78° 3400 2391 1461 861 555
05-28 58° 77° 3445 2427 1487 879 567
05-29 52° 72° 3486 2457 1507 891 575
05-30 52° 76° 3528 2490 1529 906 584
05-31 56° 77° 3573 2524 1554 922 596
06-01 63° 72° 3618 2560 1579 940 608
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
06-02 63° 73° 3664 2596 1605 958 621
06-03 62° 86° 3716 2638 1637 982 640
06-04 67° 81° 3768 2680 1670 1006 659
06-05 66° 79° 3819 2720 1700 1028 677
06-06 64° 82° 3870 2761 1731 1051 695
06-07 58° 85° 3919 2800 1760 1072 711
06-08 67° 81° 3971 2842 1792 1096 730
06-09 57° 82° 4018 2880 1819 1116 744
06-10 55° 75° 4061 2913 1842 1131 754
06-11 50° 78° 4103 2945 1864 1144 763
06-12 64° 88° 4157 2989 1898 1171 784
06-13 67° 92° 4215 3036 1936 1200 809
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
06-14 70° 88° 4272 3083 1973 1229 833
06-15 60° 87° 4323 3125 2005 1253 851
06-16 73° 93° 4384 3176 2046 1286 879
06-17 75° 93° 4447 3228 2088 1320 909
06-18 74° 87° 4505 3277 2126 1351 934
06-19 73° 91° 4565 3327 2166 1383 961
06-20 72° 91° 4625 3376 2206 1414 988
06-21 68° 91° 4682 3424 2244 1444 1012
06-22 74° 90° 4743 3474 2284 1476 1040
06-23 74° 88° 4801 3523 2322 1507 1065
06-24 66° 88° 4856 3568 2357 1534 1087
06-25 74° 93° 4918 3619 2399 1567 1116
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
06-26 67° 81° 4970 3661 2431 1591 1135
06-27 63° 83° 5021 3702 2462 1614 1153
06-28 70° 85° 5076 3748 2497 1642 1175
06-29 77° 89° 5137 3798 2538 1674 1203
06-30 65° 77° 5186 3837 2567 1695 1219
07-01 51° 78° 5229 3870 2590 1710 1229
07-02 63° 89° 5283 3914 2624 1736 1250
07-03 73° 84° 5339 3961 2660 1765 1273
07-04 69° 81° 5392 4004 2693 1790 1293
07-05 69° 82° 5446 4047 2727 1815 1314
07-06 61° 83° 5496 4088 2757 1837 1331
07-07 64° 87° 5550 4131 2791 1863 1352
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
07-08 67° 86° 5604 4175 2825 1889 1373
07-09 67° 72° 5652 4213 2853 1909 1388
07-10 64° 85° 5704 4255 2885 1933 1407
07-11 63° 83° 5755 4296 2916 1956 1425
07-12 63° 87° 5808 4339 2949 1981 1445
07-13 68° 89° 5864 4386 2985 2009 1468
07-14 73° 91° 5924 4436 3025 2041 1495
07-15 72° 94° 5985 4487 3066 2075 1523
07-16 69° 79° 6037 4529 3098 2098 1542
07-17 66° 83° 6090 4571 3131 2123 1562
07-18 58° 77° 6136 4607 3157 2141 1575
07-19 54° 77° 6179 4641 3180 2157 1585
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
07-20 57° 80° 6226 4677 3207 2175 1599
07-21 66° 79° 6276 4718 3237 2198 1616
07-22 60° 83° 6326 4757 3267 2219 1633
07-23 63° 85° 6378 4799 3299 2243 1652
07-24 65° 86° 6431 4843 3332 2268 1672
07-25 69° 82° 6484 4886 3365 2294 1692
07-26 64° 83° 6536 4927 3397 2317 1711
07-27 60° 84° 6585 4967 3427 2339 1727
07-28 71° 85° 6641 5013 3463 2367 1750
07-29 68° 86° 6697 5058 3498 2394 1773
07-30 71° 86° 6753 5105 3534 2422 1796
07-31 70° 81° 6807 5148 3568 2448 1817
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
08-01 70° 87° 6863 5195 3604 2477 1840
08-02 69° 82° 6917 5238 3638 2502 1861
08-03 67° 89° 6973 5284 3674 2530 1884
08-04 69° 89° 7030 5331 3711 2559 1908
08-05 71° 92° 7090 5381 3751 2591 1935
08-06 67° 87° 7144 5426 3785 2618 1956
08-07 66° 75° 7193 5464 3814 2638 1972
08-08 60° 80° 7241 5502 3842 2658 1987
08-09 57° 73° 7284 5535 3865 2673 1997
08-10 53° 76° 7326 5567 3887 2687 2006
08-11 55° 79° 7371 5602 3912 2704 2018
08-12 59° 74° 7415 5637 3936 2721 2029
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
08-13 60° 79° 7463 5674 3964 2740 2044
08-14 58° 80° 7510 5712 3991 2760 2058
08-15 69° 85° 7566 5757 4027 2787 2081
08-16 68° 88° 7621 5803 4062 2815 2103
08-17 68° 79° 7673 5844 4094 2838 2122
08-18 66° 81° 7724 5885 4125 2861 2140
08-19 62° 79° 7772 5924 4153 2881 2155
08-20 55° 75° 7815 5957 4176 2896 2165
08-21 53° 75° 7857 5988 4198 2910 2174
08-22 50° 77° 7898 6020 4219 2924 2182
08-23 51° 83° 7944 6055 4245 2941 2195
08-24 66° 89° 7999 6101 4280 2969 2217
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
08-25 70° 91° 8058 6149 4319 2999 2243
08-26 73° 95° 8120 6202 4361 3033 2272
08-27 75° 97° 8184 6255 4405 3069 2303
08-28 70° 87° 8241 6302 4442 3098 2327
08-29 69° 91° 8298 6350 4479 3128 2351
08-30 71° 91° 8357 6399 4518 3159 2377
08-31 64° 82° 8408 6439 4549 3181 2395
09-01 56° 82° 8455 6476 4576 3200 2409
09-02 52° 76° 8497 6509 4598 3215 2418
09-03 52° 75° 8539 6540 4620 3228 2427
09-04 50° 84° 8583 6575 4645 3245 2438
09-05 66° 87° 8638 6619 4679 3271 2460
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
09-06 60° 77° 8684 6656 4705 3290 2473
09-07 49° 68° 8721 6682 4722 3298 2477
09-08 41° 72° 8755 6707 4736 3305 2478
09-09 44° 79° 8795 6736 4756 3316 2485
09-10 46° 84° 8838 6769 4779 3331 2495
09-11 50° 88° 8885 6806 4806 3350 2509
09-12 55° 87° 8934 6845 4835 3371 2525
09-13 64° 72° 8980 6882 4861 3390 2538
09-14 61° 88° 9033 6925 4894 3415 2558
09-15 64° 88° 9087 6969 4928 3441 2579
09-16 61° 88° 9140 7012 4961 3466 2599
09-17 55° 88° 9189 7051 4990 3487 2615
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
09-18 52° 88° 9238 7089 5019 3507 2631
09-19 57° 90° 9289 7131 5050 3530 2649
09-20 70° 92° 9348 7180 5089 3562 2675
09-21 59° 92° 9402 7223 5123 3587 2696
09-22 66° 76° 9451 7262 5152 3608 2712
09-23 63° 66° 9493 7295 5174 3623 2721
09-24 61° 69° 9536 7327 5197 3637 2731
09-25 55° 79° 9581 7362 5222 3654 2743
09-26 50° 79° 9624 7395 5245 3669 2753
09-27 64° 70° 9669 7431 5270 3687 2765
09-28 65° 75° 9717 7469 5298 3707 2780
09-29 67° 78° 9767 7509 5329 3729 2797
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
09-30 57° 80° 9814 7545 5355 3747 2811
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
02-15 35° 53° 22 12 2 0 0
02-16 30° 37° 33 13 2 0 0
02-17 21° 32° 38 13 2 0 0
02-18 27° 50° 54 20 2 0 0
02-19 38° 58° 80 35 7 0 0
02-20 30° 58° 102 48 10 0 0
02-21 34° 48° 121 56 10 0 0
02-22 44° 52° 148 73 16 0 0
02-23 27° 53° 166 81 16 0 0
02-24 19° 33° 170 81 16 0 0
02-25 31° 40° 183 85 16 0 0
02-26 27° 55° 203 94 16 0 0
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
02-27 47° 59° 234 115 27 3 0
02-28 40° 50° 257 128 30 3 0
02-29 n/a n/a n/a n/a n/a n/a n/a
03-01 34° 62° 283 144 36 3 0
03-02 34° 51° 304 155 37 3 0
03-03 34° 41° 319 160 37 3 0
03-04 29° 54° 339 170 37 3 0
03-05 35° 59° 363 185 42 3 0
03-06 45° 68° 398 210 57 10 2
03-07 37° 49° 419 220 57 10 2
03-08 36° 45° 438 229 57 10 2
03-09 37° 43° 456 237 57 10 2
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
03-10 32° 40° 470 241 57 10 2
03-11 30° 42° 484 245 57 10 2
03-12 31° 41° 498 250 57 10 2
03-13 29° 34° 508 250 57 10 2
03-14 26° 41° 520 252 57 10 2
03-15 29° 53° 539 261 57 10 2
03-16 43° 57° 567 279 65 10 2
03-17 27° 46° 582 283 65 10 2
03-18 18° 30° 584 283 65 10 2
03-19 20° 40° 592 283 65 10 2
03-20 25° 56° 610 292 65 10 2
03-21 38° 50° 633 304 68 10 2
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
03-22 40° 61° 661 323 76 10 2
03-23 43° 59° 690 342 85 11 2
03-24 36° 45° 709 351 85 11 2
03-25 35° 53° 731 363 87 11 2
03-26 38° 67° 761 383 98 14 2
03-27 36° 53° 784 395 100 14 2
03-28 33° 51° 804 405 100 14 2
03-29 34° 54° 826 417 102 14 2
03-30 34° 67° 854 436 111 14 2
03-31 55° 78° 899 470 135 30 13
04-01 38° 55° 923 484 139 30 13
04-02 32° 64° 949 501 145 30 13
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
04-03 48° 76° 989 531 165 42 20
04-04 59° 82° 1038 569 194 63 36
04-05 43° 77° 1076 598 212 73 41
04-06 34° 52° 1097 609 213 73 41
04-07 30° 60° 1120 622 217 73 41
04-08 41° 66° 1152 643 228 77 41
04-09 42° 68° 1185 666 241 82 41
04-10 43° 73° 1221 692 257 90 44
04-11 51° 78° 1263 725 279 104 53
04-12 54° 80° 1308 760 305 121 66
04-13 52° 81° 1353 794 329 138 77
04-14 55° 81° 1398 830 355 155 90
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
04-15 58° 78° 1445 866 381 174 103
04-16 39° 58° 1471 883 388 174 103
04-17 38° 61° 1499 900 395 174 103
04-18 38° 64° 1528 919 404 175 103
04-19 50° 82° 1572 953 428 191 114
04-20 54° 79° 1616 988 453 207 126
04-21 45° 65° 1649 1011 466 212 126
04-22 39° 51° 1672 1024 468 212 126
04-23 38° 50° 1694 1035 470 212 126
04-24 30° 59° 1716 1048 472 212 126
04-25 47° 63° 1749 1071 486 218 126
04-26 39° 61° 1777 1089 494 218 126
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
04-27 37° 66° 1807 1109 503 219 126
04-28 48° 72° 1845 1137 521 230 131
04-29 46° 67° 1880 1161 536 236 133
04-30 42° 49° 1903 1175 540 236 133
05-01 44° 62° 1934 1196 550 239 133
05-02 42° 64° 1965 1217 561 242 133
05-03 39° 65° 1995 1237 571 244 133
05-04 39° 75° 2030 1261 586 251 135
05-05 50° 76° 2071 1293 607 264 143
05-06 59° 73° 2115 1326 631 280 154
05-07 62° 84° 2166 1367 662 303 172
05-08 58° 73° 2209 1401 686 318 182
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
05-09 54° 70° 2250 1431 706 331 189
05-10 55° 76° 2293 1465 729 346 200
05-11 57° 78° 2339 1500 755 364 212
05-12 66° 78° 2389 1540 785 386 229
05-13 66° 83° 2441 1583 817 410 249
05-14 62° 81° 2491 1622 847 431 265
05-15 54° 69° 2530 1652 867 443 272
05-16 55° 70° 2571 1682 887 456 279
05-17 54° 75° 2613 1715 909 470 289
05-18 52° 78° 2656 1748 932 485 299
05-19 58° 77° 2701 1783 958 502 311
05-20 48° 70° 2738 1810 974 511 315
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
05-21 49° 76° 2779 1840 995 523 322
05-22 51° 76° 2820 1872 1016 537 331
05-23 53° 83° 2866 1908 1042 555 344
05-24 56° 86° 2915 1947 1071 576 360
05-25 57° 75° 2959 1980 1095 592 371
05-26 44° 76° 2997 2009 1114 602 376
05-27 50° 79° 3040 2041 1136 616 385
05-28 52° 79° 3083 2075 1160 632 396
05-29 56° 83° 3131 2112 1187 652 410
05-30 59° 86° 3181 2153 1218 674 428
05-31 62° 88° 3234 2196 1251 699 448
06-01 67° 88° 3290 2241 1286 727 470
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
06-02 67° 90° 3346 2288 1323 755 494
06-03 62° 90° 3400 2332 1356 781 515
06-04 66° 89° 3455 2377 1392 808 537
06-05 55° 82° 3502 2414 1418 827 551
06-06 55° 86° 3550 2452 1447 847 566
06-07 65° 80° 3601 2492 1477 870 583
06-08 50° 78° 3643 2524 1499 884 592
06-09 49° 79° 3685 2557 1521 898 602
06-10 54° 84° 3732 2594 1549 917 616
06-11 58° 73° 3776 2628 1572 933 627
06-12 53° 72° 3817 2658 1593 945 634
06-13 58° 81° 3864 2696 1620 965 649
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
06-14 62° 82° 3914 2736 1651 987 666
06-15 60° 88° 3967 2778 1683 1012 685
06-16 54° 76° 4010 2811 1706 1027 696
06-17 54° 80° 4055 2846 1731 1044 707
06-18 64° 83° 4106 2888 1763 1067 726
06-19 64° 88° 4160 2932 1797 1093 747
06-20 61° 90° 4214 2975 1830 1119 767
06-21 65° 88° 4268 3020 1865 1145 789
06-22 61° 87° 4320 3062 1897 1169 808
06-23 61° 88° 4373 3104 1929 1193 827
06-24 60° 92° 4426 3148 1963 1219 848
06-25 73° 88° 4485 3196 2001 1250 873
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
06-26 66° 80° 4536 3238 2032 1273 892
06-27 63° 83° 4587 3279 2064 1296 910
06-28 64° 82° 4638 3320 2095 1319 928
06-29 68° 84° 4692 3364 2129 1345 949
06-30 63° 86° 4745 3407 2162 1370 969
07-01 69° 81° 4798 3450 2195 1395 989
07-02 69° 75° 4848 3490 2225 1417 1006
07-03 64° 86° 4901 3533 2258 1442 1026
07-04 67° 89° 4957 3579 2294 1470 1049
07-05 71° 88° 5015 3627 2331 1500 1074
07-06 66° 81° 5067 3668 2363 1523 1092
07-07 59° 80° 5114 3706 2391 1543 1107
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
07-08 65° 75° 5162 3744 2418 1563 1122
07-09 59° 81° 5210 3782 2447 1583 1137
07-10 57° 85° 5259 3820 2475 1604 1153
07-11 65° 89° 5314 3865 2510 1631 1175
07-12 69° 86° 5370 3911 2546 1658 1197
07-13 68° 82° 5423 3954 2579 1684 1217
07-14 66° 91° 5479 4001 2616 1712 1241
07-15 69° 84° 5534 4046 2650 1739 1263
07-16 65° 84° 5586 4088 2683 1763 1282
07-17 64° 83° 5638 4129 2714 1787 1300
07-18 62° 78° 5686 4167 2742 1807 1315
07-19 63° 85° 5738 4209 2774 1831 1334
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
07-20 71° 88° 5795 4257 2811 1860 1359
07-21 60° 79° 5842 4294 2839 1879 1373
07-22 58° 81° 5890 4331 2866 1899 1387
07-23 62° 86° 5942 4374 2899 1923 1407
07-24 61° 87° 5995 4416 2931 1947 1426
07-25 65° 91° 6051 4462 2967 1975 1449
07-26 76° 90° 6112 4513 3008 2009 1478
07-27 73° 93° 6173 4565 3049 2042 1506
07-28 79° 95° 6238 4620 3094 2079 1538
07-29 70° 89° 6295 4667 3132 2108 1562
07-30 64° 86° 6349 4710 3165 2133 1582
07-31 62° 82° 6399 4750 3195 2156 1599
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
08-01 63° 86° 6451 4793 3227 2180 1619
08-02 67° 72° 6499 4830 3255 2200 1633
08-03 68° 82° 6552 4873 3288 2225 1653
08-04 67° 86° 6606 4918 3323 2251 1675
08-05 70° 78° 6658 4960 3355 2275 1694
08-06 60° 79° 6706 4997 3382 2295 1709
08-07 66° 75° 6754 5036 3411 2315 1724
08-08 60° 81° 6803 5075 3439 2336 1740
08-09 63° 75° 6850 5111 3466 2355 1754
08-10 63° 83° 6901 5152 3497 2378 1771
08-11 67° 88° 6956 5198 3532 2405 1794
08-12 69° 86° 7011 5243 3568 2432 1816
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
08-13 60° 80° 7060 5281 3596 2452 1831
08-14 67° 79° 7111 5322 3627 2476 1849
08-15 59° 76° 7156 5358 3653 2493 1862
08-16 54° 81° 7201 5393 3678 2510 1874
08-17 63° 82° 7252 5434 3708 2533 1892
08-18 54° 80° 7297 5469 3733 2550 1904
08-19 60° 85° 7348 5509 3764 2573 1921
08-20 71° 92° 7407 5559 3804 2604 1948
08-21 77° 91° 7469 5611 3846 2638 1977
08-22 72° 94° 7530 5662 3887 2671 2005
08-23 76° 95° 7594 5716 3931 2707 2036
08-24 77° 98° 7660 5771 3976 2745 2068
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
08-25 76° 98° 7724 5826 4021 2781 2100
08-26 72° 80° 7778 5870 4055 2807 2121
08-27 63° 77° 7827 5908 4083 2827 2136
08-28 55° 79° 7872 5943 4108 2845 2148
08-29 55° 84° 7919 5981 4136 2864 2163
08-30 59° 75° 7964 6016 4161 2881 2175
08-31 47° 78° 8005 6047 4181 2894 2183
09-01 51° 83° 8050 6082 4206 2911 2195
09-02 54° 87° 8099 6120 4235 2932 2210
09-03 68° 90° 8156 6167 4272 2961 2234
09-04 70° 91° 8214 6216 4311 2991 2260
09-05 71° 81° 8269 6260 4345 3018 2281
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
09-06 69° 78° 8320 6302 4376 3041 2300
09-07 63° 72° 8366 6337 4402 3059 2312
09-08 53° 78° 8409 6371 4426 3074 2323
09-09 55° 78° 8454 6405 4450 3091 2334
09-10 51° 84° 8499 6440 4475 3108 2347
09-11 60° 78° 8546 6477 4502 3127 2360
09-12 56° 75° 8589 6511 4526 3142 2371
09-13 48° 79° 8630 6542 4547 3155 2379
09-14 45° 77° 8670 6571 4566 3167 2386
09-15 43° 81° 8710 6602 4586 3179 2393
09-16 50° 74° 8750 6631 4606 3191 2400
09-17 55° 74° 8792 6664 4629 3205 2409
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
09-18 46° 77° 8832 6694 4648 3217 2416
09-19 56° 84° 8880 6732 4677 3237 2431
09-20 60° 81° 8929 6770 4705 3258 2446
09-21 62° 77° 8976 6808 4733 3277 2461
09-22 66° 80° 9027 6849 4764 3300 2479
09-23 61° 87° 9079 6891 4795 3324 2498
09-24 61° 87° 9131 6933 4827 3348 2517
09-25 63° 86° 9184 6975 4860 3372 2536
09-26 60° 83° 9233 7015 4890 3394 2553
09-27 60° 77° 9280 7051 4916 3413 2566
09-28 56° 74° 9323 7084 4939 3428 2576
09-29 55° 85° 9371 7122 4967 3447 2591
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
09-30 61° 89° 9424 7166 5000 3473 2612

 

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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