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Crabgrass/Annual Bluegrass Preemergence Timer (GDD 32)
through Fri, Dec. 6. 2024

 
  

Crown Point, 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 31° 44° 16 6 0 0 0
02-16 22° 31° 20 6 0 0 0
02-17 11° 24° 20 6 0 0 0
02-18 17° 43° 28 6 0 0 0
02-19 21° 48° 41 8 0 0 0
02-20 27° 55° 60 17 0 0 0
02-21 41° 65° 91 38 11 3 0
02-22 40° 52° 114 52 15 3 0
02-23 30° 47° 131 58 15 3 0
02-24 20° 32° 135 58 15 3 0
02-25 30° 58° 157 70 17 3 0
02-26 35° 70° 188 91 27 5 0
2024Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
02-27 55° 69° 228 120 47 17 7
02-28 24° 61° 248 131 48 17 7
02-29 20° 42° 257 131 48 17 7
03-01 27° 43° 270 134 48 17 7
03-02 35° 57° 294 148 52 17 7
03-03 40° 71° 328 172 65 23 7
03-04 52° 71° 368 201 85 34 14
03-05 38° 62° 396 219 93 34 14
03-06 36° 48° 416 230 93 34 14
03-07 35° 49° 436 240 94 34 14
03-08 41° 52° 461 255 98 34 14
03-09 32° 45° 477 261 98 34 14
2024Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
03-10 30° 43° 492 266 98 34 14
03-11 28° 63° 515 279 102 34 14
03-12 41° 68° 548 302 114 39 14
03-13 45° 70° 584 328 130 47 17
03-14 43° 69° 618 352 144 53 18
03-15 36° 44° 636 360 144 53 18
03-16 35° 60° 662 376 150 53 18
03-17 31° 42° 676 380 150 53 18
03-18 27° 33° 684 380 150 53 18
03-19 27° 57° 704 390 150 53 18
03-20 28° 44° 719 394 150 53 18
03-21 23° 40° 728 394 150 53 18
2024Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
03-22 31° 48° 746 402 150 53 18
03-23 28° 36° 756 402 150 53 18
03-24 28° 50° 773 409 150 53 18
03-25 42° 67° 805 432 162 57 18
03-26 36° 57° 830 446 167 57 18
03-27 30° 43° 844 450 167 57 18
03-28 26° 51° 861 457 167 57 18
03-29 33° 57° 884 470 170 57 18
03-30 40° 64° 914 490 180 59 18
03-31 37° 52° 937 503 183 59 18
04-01 44° 52° 962 519 188 59 18
04-02 36° 58° 987 533 193 59 18
2024Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
04-03 34° 37° 1001 537 193 59 18
04-04 36° 40° 1017 543 193 59 18
04-05 36° 45° 1035 551 193 59 18
04-06 31° 53° 1055 561 193 59 18
04-07 37° 54° 1078 574 197 59 18
04-08 45° 74° 1116 602 214 69 22
04-09 52° 66° 1153 629 231 78 26
04-10 42° 66° 1185 651 243 82 26
04-11 49° 55° 1215 671 253 84 26
04-12 47° 60° 1246 692 265 87 26
04-13 39° 70° 1279 715 277 92 26
04-14 58° 79° 1325 752 304 111 40
2024Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
04-15 49° 69° 1363 779 321 120 44
04-16 51° 76° 1405 811 343 134 53
04-17 61° 66° 1446 842 365 147 62
04-18 47° 64° 1480 866 378 153 62
04-19 43° 56° 1507 883 385 153 62
04-20 34° 46° 1525 892 385 153 62
04-21 33° 46° 1543 899 385 153 62
04-22 37° 65° 1572 918 395 154 62
04-23 50° 56° 1603 939 406 157 62
04-24 36° 52° 1625 951 408 157 62
04-25 30° 58° 1647 963 410 157 62
04-26 40° 61° 1675 982 418 158 62
2024Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
04-27 58° 76° 1721 1017 443 175 75
04-28 61° 75° 1767 1053 469 193 88
04-29 60° 69° 1809 1086 492 208 97
04-30 48° 75° 1849 1115 511 219 103
05-01 59° 76° 1894 1150 537 236 116
05-02 51° 81° 1938 1185 561 253 127
05-03 53° 65° 1975 1212 578 262 131
05-04 50° 81° 2019 1245 601 277 142
05-05 49° 66° 2054 1270 617 285 144
05-06 46° 74° 2093 1299 635 295 150
05-07 57° 77° 2138 1334 660 312 162
05-08 53° 79° 2182 1368 684 328 173
2024Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
05-09 52° 69° 2220 1397 703 339 178
05-10 48° 67° 2256 1422 718 346 180
05-11 50° 65° 2291 1447 734 353 183
05-12 46° 82° 2333 1479 756 367 192
05-13 61° 80° 2382 1518 784 388 207
05-14 53° 63° 2418 1544 800 396 211
05-15 54° 67° 2457 1573 819 407 216
05-16 51° 74° 2497 1603 840 419 224
05-17 59° 80° 2544 1640 867 438 238
05-18 60° 84° 2594 1680 897 460 255
05-19 64° 78° 2643 1719 925 481 271
05-20 61° 89° 2696 1762 958 506 291
2024Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
05-21 62° 88° 2749 1805 992 531 311
05-22 65° 79° 2799 1846 1022 554 328
05-23 55° 80° 2845 1881 1048 571 341
05-24 62° 80° 2894 1920 1077 592 357
05-25 59° 73° 2938 1954 1101 608 368
05-26 54° 75° 2981 1987 1123 623 378
05-27 58° 73° 3024 2020 1147 639 388
05-28 54° 72° 3066 2052 1168 652 397
05-29 53° 67° 3104 2080 1186 662 401
05-30 45° 71° 3139 2106 1202 670 404
05-31 49° 79° 3181 2138 1224 684 413
06-01 59° 70° 3224 2170 1247 698 423
2024Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
06-02 57° 74° 3267 2203 1270 713 433
06-03 55° 86° 3316 2242 1298 734 449
06-04 68° 86° 3371 2287 1334 761 471
06-05 68° 80° 3423 2329 1365 785 490
06-06 65° 79° 3473 2369 1395 807 507
06-07 59° 78° 3519 2406 1422 826 520
06-08 56° 82° 3566 2443 1449 845 534
06-09 52° 80° 3610 2477 1473 861 545
06-10 54° 64° 3647 2504 1490 870 549
06-11 44° 78° 3686 2533 1509 881 555
06-12 62° 91° 3741 2578 1544 908 577
06-13 72° 91° 3801 2627 1583 939 604
2024Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
06-14 65° 86° 3854 2670 1617 965 624
06-15 59° 83° 3904 2710 1646 986 640
06-16 64° 93° 3960 2756 1682 1014 664
06-17 77° 94° 4023 2810 1726 1050 694
06-18 75° 89° 4084 2860 1766 1082 721
06-19 77° 93° 4146 2912 1809 1116 751
06-20 69° 92° 4204 2961 1847 1147 776
06-21 67° 93° 4262 3009 1885 1177 801
06-22 74° 92° 4323 3060 1926 1210 829
06-23 67° 85° 4377 3103 1960 1236 850
06-24 61° 85° 4428 3145 1991 1259 868
06-25 69° 83° 4482 3189 2025 1285 889
2024Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
06-26 69° 83° 4537 3233 2059 1311 911
06-27 61° 73° 4582 3268 2085 1328 923
06-28 60° 77° 4629 3305 2112 1347 937
06-29 72° 89° 4688 3354 2150 1378 962
06-30 58° 78° 4734 3390 2176 1396 975
07-01 48° 76° 4774 3420 2196 1408 982
07-02 60° 84° 4824 3460 2226 1430 999
07-03 74° 87° 4882 3508 2265 1460 1025
07-04 68° 82° 4935 3551 2298 1485 1045
07-05 63° 84° 4986 3593 2329 1509 1063
07-06 62° 79° 5035 3631 2358 1529 1079
07-07 60° 89° 5088 3674 2390 1554 1098
2024Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
07-08 68° 86° 5142 3719 2425 1581 1120
07-09 69° 76° 5193 3759 2456 1603 1138
07-10 65° 80° 5244 3800 2486 1626 1156
07-11 63° 80° 5293 3839 2516 1647 1172
07-12 64° 85° 5345 3881 2548 1671 1191
07-13 65° 89° 5400 3927 2583 1699 1213
07-14 67° 84° 5454 3970 2617 1724 1234
07-15 67° 88° 5509 4016 2652 1752 1256
07-16 67° 83° 5562 4059 2685 1777 1276
07-17 65° 80° 5613 4099 2716 1799 1294
07-18 61° 72° 5657 4134 2740 1816 1305
07-19 53° 77° 5700 4167 2763 1831 1315
2024Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
07-20 56° 79° 5746 4202 2788 1848 1328
07-21 59° 81° 5794 4240 2817 1868 1343
07-22 62° 82° 5844 4280 2847 1890 1360
07-23 62° 84° 5895 4321 2877 1913 1378
07-24 64° 77° 5943 4360 2906 1934 1393
07-25 60° 78° 5991 4397 2934 1953 1408
07-26 52° 80° 6035 4431 2957 1969 1419
07-27 57° 83° 6082 4469 2985 1989 1433
07-28 64° 80° 6133 4509 3015 2011 1450
07-29 70° 85° 6188 4554 3051 2038 1473
07-30 68° 90° 6245 4601 3087 2067 1497
07-31 69° 88° 6301 4647 3124 2095 1520
2024Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
08-01 71° 85° 6357 4693 3160 2123 1543
08-02 69° 82° 6410 4736 3193 2148 1563
08-03 67° 89° 6466 4782 3229 2176 1586
08-04 67° 89° 6522 4828 3265 2204 1609
08-05 71° 92° 6581 4877 3304 2235 1635
08-06 69° 80° 6633 4920 3336 2260 1654
08-07 64° 78° 6682 4958 3365 2280 1670
08-08 58° 83° 6730 4996 3393 2301 1685
08-09 61° 74° 6776 5032 3419 2318 1698
08-10 53° 74° 6818 5064 3440 2332 1706
08-11 52° 77° 6860 5096 3463 2347 1716
08-12 52° 78° 6903 5129 3486 2362 1726
2024Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
08-13 53° 83° 6949 5165 3512 2380 1739
08-14 56° 85° 6998 5204 3540 2400 1754
08-15 65° 74° 7045 5241 3568 2420 1769
08-16 67° 86° 7100 5286 3603 2446 1791
08-17 66° 76° 7149 5325 3632 2467 1807
08-18 66° 74° 7197 5363 3659 2487 1822
08-19 62° 74° 7243 5399 3685 2505 1834
08-20 52° 70° 7282 5428 3705 2516 1841
08-21 48° 75° 7321 5457 3724 2527 1847
08-22 48° 77° 7361 5488 3744 2540 1854
08-23 49° 80° 7404 5520 3767 2555 1864
08-24 55° 89° 7455 5561 3797 2577 1881
2024Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
08-25 68° 90° 7512 5608 3834 2606 1906
08-26 74° 93° 7573 5659 3876 2639 1934
08-27 73° 96° 7636 5712 3918 2674 1964
08-28 69° 84° 7691 5757 3953 2701 1985
08-29 68° 88° 7746 5803 3989 2729 2008
08-30 72° 90° 7806 5852 4028 2760 2035
08-31 66° 83° 7858 5895 4061 2785 2054
09-01 61° 75° 7905 5931 4087 2803 2067
09-02 50° 74° 7945 5961 4107 2815 2075
09-03 49° 76° 7985 5992 4128 2828 2082
09-04 49° 83° 8029 6025 4152 2843 2093
09-05 60° 87° 8081 6067 4183 2867 2112
2024Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
09-06 59° 75° 8125 6101 4208 2884 2123
09-07 49° 64° 8160 6126 4223 2890 2125
09-08 43° 71° 8195 6151 4237 2897 2127
09-09 49° 80° 8237 6183 4260 2912 2136
09-10 49° 82° 8281 6217 4283 2927 2147
09-11 50° 86° 8327 6253 4310 2945 2160
09-12 56° 88° 8377 6293 4340 2967 2177
09-13 60° 85° 8428 6334 4370 2990 2195
09-14 61° 89° 8481 6377 4403 3015 2215
09-15 61° 88° 8533 6419 4436 3039 2234
09-16 56° 89° 8584 6460 4466 3062 2252
09-17 54° 85° 8631 6497 4494 3081 2266
2024Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
09-18 53° 88° 8679 6536 4522 3102 2281
09-19 55° 89° 8729 6575 4552 3124 2298
09-20 63° 85° 8782 6618 4584 3148 2317
09-21 59° 91° 8834 6661 4617 3173 2337
09-22 65° 71° 8881 6697 4643 3191 2350
09-23 60° 66° 8922 6728 4664 3204 2358
09-24 62° 68° 8965 6761 4687 3219 2368
09-25 57° 75° 9009 6795 4711 3235 2380
09-26 50° 77° 9050 6826 4733 3248 2388
09-27 62° 73° 9095 6862 4758 3266 2400
09-28 61° 70° 9139 6895 4781 3281 2411
09-29 64° 75° 9186 6933 4809 3301 2425
2024Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
09-30 59° 76° 9232 6968 4835 3318 2438
2023Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
02-15 37° 52° 22 12 2 0 0
02-16 29° 38° 34 14 2 0 0
02-17 20° 29° 36 14 2 0 0
02-18 20° 45° 47 14 2 0 0
02-19 36° 54° 70 27 5 0 0
02-20 30° 48° 87 34 5 0 0
02-21 28° 38° 98 36 5 0 0
02-22 32° 35° 110 37 5 0 0
02-23 27° 46° 124 42 5 0 0
02-24 20° 29° 126 42 5 0 0
02-25 26° 36° 135 42 5 0 0
02-26 25° 50° 151 47 5 0 0
2023Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
02-27 37° 56° 176 62 10 0 0
02-28 37° 50° 198 74 12 0 0
02-29 n/a n/a n/a n/a n/a n/a n/a
03-01 34° 58° 222 88 16 0 0
03-02 32° 41° 237 93 16 0 0
03-03 31° 38° 250 96 16 0 0
03-04 22° 41° 259 96 16 0 0
03-05 29° 50° 276 103 16 0 0
03-06 40° 53° 301 118 21 0 0
03-07 33° 43° 317 124 21 0 0
03-08 32° 47° 335 132 21 0 0
03-09 34° 42° 351 138 21 0 0
2023Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
03-10 32° 36° 363 140 21 0 0
03-11 32° 40° 377 144 21 0 0
03-12 30° 35° 388 145 21 0 0
03-13 25° 32° 395 145 21 0 0
03-14 22° 35° 401 145 21 0 0
03-15 20° 48° 413 147 21 0 0
03-16 37° 47° 433 156 21 0 0
03-17 27° 50° 450 163 21 0 0
03-18 13° 27° 450 163 21 0 0
03-19 16° 38° 454 163 21 0 0
03-20 25° 49° 469 168 21 0 0
03-21 33° 52° 490 178 21 0 0
2023Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
03-22 38° 49° 511 190 23 0 0
03-23 35° 49° 532 200 23 0 0
03-24 34° 46° 550 209 23 0 0
03-25 34° 42° 566 215 23 0 0
03-26 31° 52° 586 224 23 0 0
03-27 32° 44° 602 230 23 0 0
03-28 27° 50° 618 237 23 0 0
03-29 27° 43° 631 240 23 0 0
03-30 23° 55° 648 246 23 0 0
03-31 50° 66° 683 272 39 8 3
04-01 35° 53° 705 284 41 8 3
04-02 29° 54° 725 294 41 8 3
2023Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
04-03 40° 63° 755 313 51 9 3
04-04 47° 67° 790 339 66 16 5
04-05 40° 72° 824 363 80 22 6
04-06 33° 51° 844 372 80 22 6
04-07 34° 52° 865 383 81 22 6
04-08 36° 61° 891 400 87 22 6
04-09 40° 66° 922 421 98 25 6
04-10 43° 69° 956 445 112 31 7
04-11 47° 77° 996 474 132 43 13
04-12 55° 81° 1042 510 158 61 26
04-13 52° 81° 1086 545 182 77 38
04-14 51° 81° 1130 579 206 93 49
2023Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
04-15 60° 80° 1178 617 234 113 64
04-16 37° 68° 1209 638 245 116 64
04-17 31° 38° 1221 640 245 116 64
04-18 32° 57° 1244 653 247 116 64
04-19 39° 76° 1280 678 263 124 67
04-20 60° 80° 1328 716 291 144 82
04-21 46° 62° 1359 738 303 148 82
04-22 37° 50° 1381 750 305 148 82
04-23 35° 43° 1398 757 305 148 82
04-24 31° 51° 1417 766 305 148 82
04-25 38° 48° 1438 777 305 148 82
04-26 31° 51° 1457 786 305 148 82
2023Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
04-27 32° 65° 1483 802 312 148 82
04-28 45° 56° 1512 821 321 148 82
04-29 38° 63° 1541 839 329 149 82
04-30 38° 48° 1561 850 330 149 82
05-01 39° 46° 1582 861 331 149 82
05-02 41° 52° 1606 875 335 149 82
05-03 41° 54° 1632 890 340 149 82
05-04 36° 70° 1663 912 351 152 82
05-05 49° 76° 1703 942 372 165 89
05-06 58° 77° 1749 978 397 182 102
05-07 65° 83° 1801 1019 429 206 121
05-08 53° 64° 1837 1046 446 215 124
2023Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
05-09 47° 70° 1874 1072 462 223 128
05-10 46° 79° 1914 1103 483 235 135
05-11 54° 83° 1961 1140 509 254 149
05-12 65° 80° 2011 1180 540 276 166
05-13 61° 73° 2056 1215 565 293 178
05-14 58° 67° 2097 1245 585 306 186
05-15 53° 69° 2136 1274 604 317 192
05-16 48° 78° 2177 1305 625 330 200
05-17 47° 66° 2211 1330 640 336 201
05-18 44° 74° 2248 1357 657 345 205
05-19 56° 72° 2290 1389 679 359 214
05-20 46° 65° 2324 1413 692 365 215
2023Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
05-21 47° 78° 2365 1443 713 378 223
05-22 52° 80° 2408 1477 737 394 233
05-23 56° 84° 2456 1515 765 414 248
05-24 56° 73° 2499 1547 787 428 258
05-25 47° 62° 2531 1570 800 433 258
05-26 42° 70° 2565 1594 814 438 259
05-27 44° 77° 2603 1622 832 449 264
05-28 53° 79° 2647 1656 856 465 275
05-29 54° 84° 2694 1693 883 484 289
05-30 61° 88° 2747 1736 915 508 308
05-31 66° 88° 2802 1781 951 535 331
06-01 66° 89° 2857 1826 986 563 353
2023Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
06-02 65° 91° 2913 1872 1022 590 376
06-03 64° 88° 2967 1916 1055 616 396
06-04 62° 78° 3015 1953 1083 636 411
06-05 51° 82° 3059 1988 1108 652 423
06-06 59° 80° 3107 2025 1135 672 437
06-07 56° 74° 3150 2058 1158 687 447
06-08 49° 74° 3189 2088 1178 698 453
06-09 48° 76° 3230 2118 1198 711 461
06-10 54° 86° 3278 2157 1226 731 476
06-11 53° 69° 3317 2185 1245 742 482
06-12 51° 67° 3354 2212 1262 751 486
06-13 55° 63° 3390 2239 1279 760 490
2023Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
06-14 57° 68° 3431 2270 1300 772 497
06-15 55° 82° 3478 2306 1326 791 511
06-16 52° 66° 3514 2333 1343 800 515
06-17 48° 80° 3556 2365 1365 814 524
06-18 56° 85° 3605 2403 1393 834 539
06-19 62° 85° 3656 2445 1425 858 558
06-20 60° 85° 3707 2486 1456 880 575
06-21 62° 87° 3760 2529 1488 905 595
06-22 64° 83° 3811 2570 1520 928 613
06-23 66° 83° 3864 2612 1552 953 633
06-24 61° 88° 3916 2655 1585 978 653
06-25 67° 85° 3970 2699 1619 1004 674
2023Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
06-26 66° 72° 4018 2736 1646 1023 688
06-27 61° 71° 4062 2770 1670 1039 699
06-28 52° 83° 4107 2806 1696 1056 712
06-29 68° 84° 4161 2850 1730 1082 733
06-30 66° 88° 4216 2895 1765 1109 755
07-01 70° 84° 4271 2940 1799 1136 776
07-02 65° 75° 4319 2978 1827 1156 791
07-03 62° 83° 4370 3018 1858 1179 809
07-04 65° 92° 4426 3065 1894 1207 832
07-05 70° 91° 4484 3113 1933 1237 858
07-06 67° 79° 4535 3154 1964 1260 875
07-07 59° 82° 4584 3192 1992 1281 891
2023Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
07-08 62° 71° 4628 3227 2017 1298 903
07-09 55° 83° 4675 3264 2044 1316 916
07-10 59° 83° 4724 3303 2073 1337 932
07-11 65° 88° 4778 3347 2107 1363 953
07-12 59° 80° 4826 3384 2134 1383 968
07-13 64° 76° 4874 3422 2162 1403 983
07-14 65° 89° 4929 3467 2197 1430 1005
07-15 68° 81° 4981 3510 2230 1454 1025
07-16 64° 81° 5031 3550 2260 1477 1042
07-17 63° 78° 5080 3589 2288 1497 1057
07-18 55° 76° 5123 3622 2312 1513 1068
07-19 54° 82° 5169 3658 2338 1531 1081
2023Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
07-20 65° 87° 5223 3702 2372 1557 1102
07-21 64° 78° 5272 3741 2401 1577 1117
07-22 54° 84° 5319 3778 2428 1597 1132
07-23 64° 84° 5371 3820 2460 1620 1150
07-24 60° 87° 5423 3861 2491 1644 1169
07-25 61° 89° 5475 3904 2524 1669 1189
07-26 72° 89° 5534 3952 2562 1699 1214
07-27 69° 93° 5592 4001 2601 1730 1240
07-28 71° 92° 5652 4051 2641 1762 1267
07-29 65° 83° 5705 4093 2673 1786 1286
07-30 60° 79° 5752 4131 2701 1805 1300
07-31 57° 80° 5799 4167 2727 1824 1314
2023Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
08-01 58° 83° 5847 4205 2755 1844 1329
08-02 60° 82° 5896 4244 2784 1865 1345
08-03 59° 87° 5947 4285 2815 1888 1363
08-04 64° 86° 6000 4328 2848 1913 1383
08-05 65° 75° 6047 4366 2876 1933 1398
08-06 63° 70° 6092 4400 2900 1949 1409
08-07 65° 75° 6140 4438 2928 1969 1424
08-08 57° 83° 6188 4477 2956 1989 1439
08-09 61° 79° 6236 4515 2984 2009 1454
08-10 62° 81° 6286 4554 3014 2031 1471
08-11 66° 82° 6338 4597 3046 2055 1490
08-12 68° 83° 6391 4640 3080 2081 1511
2023Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
08-13 62° 81° 6441 4680 3110 2102 1527
08-14 63° 75° 6488 4717 3137 2121 1541
08-15 62° 75° 6534 4753 3163 2140 1555
08-16 53° 80° 6579 4787 3187 2156 1566
08-17 61° 79° 6627 4826 3215 2176 1581
08-18 55° 75° 6670 4859 3239 2191 1591
08-19 54° 79° 6715 4893 3263 2208 1603
08-20 68° 90° 6772 4941 3300 2237 1627
08-21 69° 83° 6826 4985 3334 2263 1648
08-22 67° 86° 6880 5029 3369 2290 1670
08-23 70° 95° 6941 5080 3410 2322 1697
08-24 78° 97° 7006 5135 3455 2360 1730
2023Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
08-25 71° 82° 7061 5179 3489 2386 1751
08-26 66° 76° 7109 5218 3518 2407 1767
08-27 60° 75° 7155 5254 3544 2424 1779
08-28 53° 78° 7199 5287 3567 2440 1790
08-29 54° 81° 7244 5323 3593 2458 1803
08-30 55° 69° 7285 5353 3613 2470 1810
08-31 46° 77° 7324 5383 3633 2481 1817
09-01 50° 83° 7369 5417 3657 2498 1828
09-02 55° 85° 7417 5456 3686 2518 1843
09-03 64° 90° 7473 5501 3721 2546 1866
09-04 66° 90° 7529 5547 3757 2574 1889
09-05 72° 89° 7587 5596 3796 2604 1915
2023Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
09-06 67° 81° 7639 5638 3828 2629 1934
09-07 65° 70° 7685 5674 3854 2646 1946
09-08 59° 67° 7726 5705 3875 2659 1955
09-09 53° 73° 7768 5736 3896 2673 1963
09-10 48° 79° 7809 5768 3918 2686 1971
09-11 61° 65° 7850 5799 3939 2699 1980
09-12 54° 69° 7890 5828 3958 2711 1986
09-13 48° 68° 7926 5854 3974 2719 1989
09-14 44° 71° 7961 5880 3990 2726 1992
09-15 46° 76° 8000 5909 4009 2737 1997
09-16 49° 74° 8040 5939 4028 2749 2004
09-17 56° 66° 8079 5968 4048 2760 2010
2023Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
09-18 49° 69° 8116 5995 4064 2769 2014
09-19 50° 64° 8151 6020 4079 2776 2016
09-20 55° 81° 8197 6055 4105 2794 2029
09-21 61° 77° 8244 6092 4132 2813 2043
09-22 60° 81° 8292 6131 4161 2833 2059
09-23 56° 79° 8338 6166 4186 2851 2071
09-24 50° 77° 8379 6198 4208 2864 2080
09-25 57° 78° 8425 6233 4233 2882 2092
09-26 60° 73° 8469 6268 4258 2899 2104
09-27 61° 67° 8512 6300 4280 2913 2113
09-28 59° 69° 8554 6332 4302 2927 2122
09-29 57° 76° 8598 6367 4327 2943 2133
2023Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
09-30 52° 84° 8644 6403 4353 2962 2147

 

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!