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Japanese Beetle Adults Emerge, Breed and Feed (GDD 50)
through Thu, Oct. 24. 2024

 
  

Janesville, WI

        

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 29° 38° 12 2 0 0 0
02-16 16° 31° 13 2 0 0 0
02-17 10° 31° 13 2 0 0 0
02-18 24° 43° 25 3 0 0 0
02-19 20° 46° 36 5 0 0 0
02-20 27° 58° 57 15 0 0 0
02-21 40° 57° 83 32 7 0 0
02-22 35° 59° 108 46 12 0 0
02-23 22° 44° 119 48 12 0 0
02-24 7° 31° 119 48 12 0 0
02-25 27° 58° 140 58 12 0 0
02-26 32° 68° 168 76 21 0 0
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
02-27 48° 72° 205 104 38 10 5
02-28 14° 45° 213 104 38 10 5
02-29 14° 45° 221 104 38 10 5
03-01 31° 46° 237 110 38 10 5
03-02 32° 61° 261 124 42 10 5
03-03 43° 73° 297 150 58 18 8
03-04 38° 66° 327 170 68 20 8
03-05 37° 51° 349 182 70 20 8
03-06 32° 53° 369 193 71 20 8
03-07 33° 53° 390 204 72 20 8
03-08 37° 43° 409 212 72 20 8
03-09 31° 40° 422 215 72 20 8
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
03-10 27° 45° 436 219 72 20 8
03-11 31° 66° 462 236 78 20 8
03-12 46° 68° 497 261 93 27 10
03-13 38° 69° 528 282 104 30 10
03-14 39° 54° 553 296 109 30 10
03-15 33° 53° 574 307 110 30 10
03-16 39° 51° 597 320 113 30 10
03-17 30° 38° 609 322 113 30 10
03-18 24° 35° 616 322 113 30 10
03-19 30° 57° 638 334 115 30 10
03-20 26° 42° 650 336 115 30 10
03-21 23° 35° 657 336 115 30 10
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
03-22 30° 34° 667 336 115 30 10
03-23 24° 37° 676 336 115 30 10
03-24 29° 40° 688 338 115 30 10
03-25 39° 55° 713 353 120 30 10
03-26 31° 51° 732 362 120 30 10
03-27 27° 39° 743 364 120 30 10
03-28 27° 46° 758 368 120 30 10
03-29 26° 52° 775 376 120 30 10
03-30 38° 50° 797 387 122 30 10
03-31 36° 48° 817 397 122 30 10
04-01 35° 47° 836 406 122 30 10
04-02 33° 40° 851 411 122 30 10
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
04-03 33° 36° 863 413 122 30 10
04-04 34° 42° 879 419 122 30 10
04-05 33° 50° 898 428 122 30 10
04-06 30° 53° 917 437 122 30 10
04-07 36° 47° 937 447 122 30 10
04-08 44° 62° 968 468 133 34 10
04-09 44° 58° 997 488 142 35 10
04-10 41° 66° 1029 509 154 38 10
04-11 47° 60° 1060 531 165 42 10
04-12 46° 60° 1091 551 176 45 10
04-13 40° 70° 1124 574 189 49 10
04-14 58° 81° 1171 611 216 69 24
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
04-15 43° 66° 1204 634 229 73 24
04-16 48° 68° 1240 660 245 81 27
04-17 56° 63° 1277 687 262 91 31
04-18 43° 50° 1302 702 266 91 31
04-19 36° 51° 1323 713 268 91 31
04-20 32° 39° 1337 717 268 91 31
04-21 30° 48° 1354 724 268 91 31
04-22 36° 64° 1382 742 276 91 31
04-23 49° 68° 1418 769 293 99 35
04-24 36° 53° 1441 781 295 99 35
04-25 31° 60° 1464 794 298 99 35
04-26 40° 57° 1490 811 305 99 35
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
04-27 55° 76° 1534 844 329 115 46
04-28 49° 63° 1568 869 343 121 47
04-29 51° 67° 1606 896 360 131 51
04-30 43° 70° 1640 920 374 137 53
05-01 59° 72° 1684 954 398 153 63
05-02 55° 76° 1727 987 421 168 74
05-03 53° 73° 1768 1018 442 181 81
05-04 45° 76° 1806 1046 460 191 87
05-05 44° 65° 1839 1069 473 196 87
05-06 46° 72° 1876 1096 490 205 91
05-07 55° 71° 1917 1127 511 218 99
05-08 48° 76° 1956 1157 531 229 105
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
05-09 52° 59° 1990 1180 544 235 106
05-10 47° 67° 2025 1205 559 242 107
05-11 48° 69° 2061 1231 575 250 111
05-12 48° 83° 2104 1264 599 265 121
05-13 61° 72° 2149 1299 623 282 133
05-14 50° 64° 2183 1324 638 288 134
05-15 47° 72° 2221 1351 655 298 139
05-16 50° 76° 2262 1382 676 311 147
05-17 53° 78° 2305 1416 700 326 157
05-18 54° 85° 2353 1453 728 346 172
05-19 63° 79° 2402 1492 756 367 188
05-20 60° 71° 2446 1526 780 383 198
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
05-21 59° 86° 2496 1566 811 405 216
05-22 58° 75° 2540 1601 835 421 227
05-23 53° 79° 2584 1634 859 437 238
05-24 57° 72° 2627 1667 881 452 247
05-25 49° 73° 2666 1696 900 463 254
05-26 55° 68° 2706 1726 920 475 260
05-27 56° 70° 2747 1757 941 488 269
05-28 52° 68° 2784 1785 959 497 273
05-29 50° 68° 2821 1812 976 506 277
05-30 45° 72° 2858 1838 992 515 281
05-31 47° 79° 2899 1869 1014 528 289
06-01 59° 67° 2941 1901 1035 542 297
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
06-02 58° 73° 2984 1934 1058 557 308
06-03 59° 78° 3031 1971 1085 576 321
06-04 66° 81° 3082 2012 1117 599 340
06-05 65° 77° 3131 2051 1146 620 356
06-06 59° 71° 3174 2085 1169 635 366
06-07 56° 75° 3218 2118 1192 651 377
06-08 55° 66° 3256 2146 1211 661 382
06-09 53° 76° 3299 2179 1233 676 392
06-10 52° 71° 3338 2208 1253 687 398
06-11 49° 74° 3377 2238 1272 698 404
06-12 61° 87° 3429 2280 1304 722 423
06-13 67° 83° 3482 2322 1337 747 443
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
06-14 58° 79° 3529 2359 1363 766 457
06-15 58° 78° 3575 2395 1389 784 470
06-16 68° 89° 3632 2442 1426 813 493
06-17 70° 91° 3690 2490 1465 843 519
06-18 73° 90° 3749 2540 1504 874 545
06-19 73° 88° 3808 2588 1542 905 571
06-20 69° 81° 3861 2631 1575 930 590
06-21 66° 87° 3915 2675 1610 956 612
06-22 70° 81° 3968 2719 1643 981 632
06-23 68° 76° 4019 2759 1673 1004 649
06-24 62° 83° 4069 2799 1703 1026 667
06-25 75° 90° 4129 2849 1743 1058 694
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
06-26 68° 83° 4183 2893 1777 1084 714
06-27 56° 73° 4225 2925 1800 1098 724
06-28 61° 73° 4270 2960 1824 1115 736
06-29 67° 84° 4323 3004 1858 1140 756
06-30 55° 70° 4364 3034 1878 1153 764
07-01 51° 72° 4404 3064 1898 1165 771
07-02 62° 79° 4452 3102 1926 1185 786
07-03 69° 84° 4507 3147 1961 1212 807
07-04 67° 81° 4558 3189 1993 1235 826
07-05 65° 75° 4606 3227 2021 1255 841
07-06 60° 78° 4653 3264 2048 1274 855
07-07 62° 82° 4703 3303 2078 1296 872
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
07-08 67° 81° 4755 3345 2110 1320 891
07-09 66° 80° 4806 3386 2141 1343 909
07-10 67° 81° 4858 3429 2173 1367 928
07-11 66° 81° 4910 3470 2204 1391 947
07-12 62° 82° 4960 3510 2234 1413 964
07-13 65° 85° 5013 3553 2267 1438 984
07-14 67° 84° 5066 3597 2301 1463 1004
07-15 67° 87° 5121 3641 2336 1490 1026
07-16 67° 82° 5174 3684 2368 1515 1046
07-17 63° 75° 5221 3721 2395 1534 1059
07-18 56° 74° 5263 3754 2418 1548 1069
07-19 57° 76° 5308 3788 2442 1565 1081
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
07-20 60° 78° 5355 3825 2470 1584 1095
07-21 62° 79° 5404 3864 2499 1605 1111
07-22 61° 79° 5452 3902 2527 1625 1126
07-23 63° 79° 5501 3942 2556 1646 1142
07-24 66° 74° 5550 3980 2584 1667 1158
07-25 57° 77° 5595 4015 2610 1684 1170
07-26 57° 78° 5641 4051 2635 1702 1183
07-27 57° 81° 5687 4088 2662 1720 1196
07-28 65° 80° 5738 4128 2693 1743 1214
07-29 69° 80° 5791 4171 2725 1768 1234
07-30 66° 86° 5845 4215 2759 1794 1255
07-31 68° 89° 5901 4261 2796 1822 1278
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
08-01 69° 85° 5956 4306 2831 1849 1300
08-02 66° 86° 6010 4350 2864 1875 1321
08-03 67° 87° 6065 4395 2900 1902 1343
08-04 68° 86° 6120 4440 2935 1929 1365
08-05 71° 84° 6176 4486 2970 1957 1388
08-06 61° 71° 6220 4520 2994 1973 1399
08-07 57° 77° 6265 4555 3019 1990 1411
08-08 59° 77° 6311 4591 3045 2008 1424
08-09 52° 66° 6348 4619 3063 2017 1428
08-10 52° 73° 6389 4649 3083 2030 1436
08-11 53° 76° 6432 4682 3106 2045 1445
08-12 56° 80° 6477 4717 3132 2062 1458
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
08-13 57° 82° 6525 4755 3159 2082 1473
08-14 61° 82° 6575 4795 3189 2104 1490
08-15 67° 74° 6623 4833 3217 2124 1505
08-16 69° 84° 6677 4878 3252 2150 1526
08-17 67° 77° 6728 4918 3282 2173 1544
08-18 66° 78° 6778 4958 3312 2195 1561
08-19 57° 75° 6822 4992 3336 2211 1572
08-20 55° 70° 6863 5023 3357 2224 1580
08-21 51° 74° 6903 5053 3378 2236 1587
08-22 51° 74° 6944 5084 3398 2249 1595
08-23 53° 78° 6987 5117 3422 2264 1605
08-24 58° 86° 7037 5157 3451 2286 1622
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
08-25 68° 88° 7093 5203 3488 2314 1645
08-26 73° 91° 7153 5254 3528 2346 1672
08-27 75° 93° 7215 5306 3570 2380 1701
08-28 67° 84° 7269 5350 3604 2406 1722
08-29 68° 82° 7322 5393 3637 2431 1742
08-30 64° 78° 7372 5432 3666 2453 1758
08-31 56° 82° 7418 5469 3693 2471 1772
09-01 58° 74° 7462 5502 3717 2487 1783
09-02 49° 74° 7502 5532 3736 2499 1790
09-03 51° 74° 7543 5563 3757 2512 1797
09-04 49° 79° 7584 5595 3779 2525 1806
09-05 53° 80° 7629 5629 3803 2542 1818
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
09-06 52° 65° 7666 5656 3820 2551 1822
09-07 44° 64° 7697 5678 3832 2554 1822
09-08 43° 73° 7733 5704 3848 2562 1825
09-09 55° 79° 7778 5738 3873 2579 1836
09-10 51° 81° 7822 5772 3896 2595 1847
09-11 57° 83° 7870 5810 3925 2615 1862
09-12 53° 85° 7917 5848 3952 2634 1877
09-13 59° 85° 7967 5888 3982 2656 1893
09-14 61° 86° 8019 5929 4013 2680 1912
09-15 61° 87° 8070 5971 4045 2703 1931
09-16 58° 86° 8121 6011 4075 2726 1948
09-17 54° 85° 8168 6048 4103 2745 1962
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
09-18 53° 83° 8214 6085 4129 2763 1976
09-19 55° 87° 8264 6124 4158 2785 1992
09-20 64° 84° 8316 6166 4190 2809 2011
09-21 57° 89° 8367 6207 4221 2832 2029
09-22 60° 68° 8409 6239 4243 2846 2038
09-23 51° 67° 8446 6266 4260 2855 2042
09-24 57° 65° 8485 6295 4279 2866 2048
09-25 50° 74° 8525 6325 4300 2878 2055
09-26 52° 78° 8568 6358 4322 2893 2065
09-27 55° 75° 8611 6391 4346 2908 2075
09-28 59° 79° 8658 6429 4373 2927 2089
09-29 58° 79° 8705 6466 4400 2946 2103
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
09-30 57° 80° 8752 6502 4426 2965 2117
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
02-15 32° 47° 17 7 0 0 0
02-16 22° 32° 22 7 0 0 0
02-17 12° 23° 22 7 0 0 0
02-18 17° 38° 28 7 0 0 0
02-19 34° 43° 44 14 0 0 0
02-20 25° 43° 56 16 0 0 0
02-21 18° 38° 62 16 0 0 0
02-22 28° 32° 70 16 0 0 0
02-23 21° 33° 75 16 0 0 0
02-24 13° 25° 75 16 0 0 0
02-25 21° 33° 80 16 0 0 0
02-26 18° 39° 87 16 0 0 0
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
02-27 29° 37° 98 17 0 0 0
02-28 33° 45° 115 24 0 0 0
02-29 n/a n/a n/a n/a n/a n/a n/a
03-01 35° 52° 136 36 2 0 0
03-02 31° 36° 148 38 2 0 0
03-03 29° 39° 160 40 2 0 0
03-04 29° 46° 176 45 2 0 0
03-05 26° 47° 190 49 2 0 0
03-06 34° 45° 208 57 2 0 0
03-07 32° 45° 224 63 2 0 0
03-08 31° 44° 240 69 2 0 0
03-09 31° 37° 252 71 2 0 0
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
03-10 31° 34° 262 71 2 0 0
03-11 28° 34° 272 71 2 0 0
03-12 28° 36° 282 72 2 0 0
03-13 25° 30° 287 72 2 0 0
03-14 14° 32° 289 72 2 0 0
03-15 25° 46° 302 75 2 0 0
03-16 39° 43° 322 85 2 0 0
03-17 20° 43° 331 85 2 0 0
03-18 10° 23° 331 85 2 0 0
03-19 15° 39° 336 85 2 0 0
03-20 30° 47° 353 91 2 0 0
03-21 32° 54° 374 102 3 0 0
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
03-22 38° 47° 395 113 3 0 0
03-23 33° 45° 411 120 3 0 0
03-24 30° 44° 427 125 3 0 0
03-25 31° 42° 441 130 3 0 0
03-26 27° 41° 453 132 3 0 0
03-27 25° 44° 466 134 3 0 0
03-28 27° 44° 479 138 3 0 0
03-29 26° 35° 488 138 3 0 0
03-30 22° 47° 500 140 3 0 0
03-31 47° 70° 537 166 20 8 3
04-01 33° 49° 555 175 20 8 3
04-02 29° 55° 575 185 20 8 3
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
04-03 38° 52° 599 198 23 8 3
04-04 42° 57° 626 216 31 8 3
04-05 37° 65° 655 234 39 9 3
04-06 29° 51° 673 242 39 9 3
04-07 30° 52° 692 251 39 9 3
04-08 34° 63° 718 268 46 9 3
04-09 41° 67° 750 290 58 13 3
04-10 44° 72° 786 316 74 21 6
04-11 50° 77° 828 347 95 35 15
04-12 57° 81° 875 384 123 54 29
04-13 53° 82° 920 420 148 71 41
04-14 50° 81° 964 453 171 86 52
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
04-15 58° 80° 1011 490 198 106 66
04-16 32° 60° 1035 505 203 106 66
04-17 29° 37° 1046 506 203 106 66
04-18 32° 55° 1068 517 204 106 66
04-19 38° 46° 1088 527 204 106 66
04-20 42° 72° 1122 552 219 112 67
04-21 39° 55° 1147 567 224 112 67
04-22 33° 42° 1163 572 224 112 67
04-23 33° 41° 1178 577 224 112 67
04-24 31° 51° 1196 586 224 112 67
04-25 36° 46° 1216 595 224 112 67
04-26 30° 53° 1235 605 224 112 67
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
04-27 34° 65° 1263 623 232 112 67
04-28 39° 66° 1294 643 242 115 67
04-29 42° 52° 1318 658 247 115 67
04-30 37° 42° 1336 666 247 115 67
05-01 39° 50° 1359 678 249 115 67
05-02 41° 54° 1384 694 255 115 67
05-03 34° 60° 1409 709 260 115 67
05-04 40° 73° 1444 733 274 121 69
05-05 54° 75° 1486 766 297 136 78
05-06 56° 73° 1528 798 319 150 88
05-07 56° 83° 1576 836 347 170 102
05-08 53° 59° 1610 859 361 175 103
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
05-09 51° 68° 1647 887 378 185 108
05-10 50° 73° 1687 916 398 196 114
05-11 50° 80° 1730 950 421 212 124
05-12 59° 76° 1776 985 446 229 137
05-13 58° 69° 1817 1017 468 243 145
05-14 52° 61° 1851 1041 482 249 146
05-15 44° 68° 1886 1065 496 255 148
05-16 50° 78° 1928 1097 519 269 157
05-17 41° 62° 1958 1117 528 271 157
05-18 41° 72° 1992 1142 543 278 159
05-19 50° 63° 2027 1166 557 284 160
05-20 44° 71° 2062 1192 573 292 163
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
05-21 49° 77° 2103 1223 594 305 171
05-22 49° 76° 2144 1254 615 318 179
05-23 49° 81° 2188 1287 638 333 189
05-24 54° 72° 2229 1318 659 346 197
05-25 48° 67° 2264 1344 675 354 200
05-26 40° 74° 2299 1369 690 361 202
05-27 44° 77° 2338 1397 708 371 207
05-28 49° 82° 2381 1431 732 387 218
05-29 49° 84° 2426 1465 756 403 229
05-30 54° 87° 2474 1504 785 424 245
05-31 61° 91° 2528 1548 819 450 266
06-01 61° 87° 2580 1590 851 474 285
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
06-02 61° 89° 2633 1633 884 499 305
06-03 60° 89° 2686 1675 917 523 325
06-04 62° 81° 2736 1715 947 545 342
06-05 53° 84° 2782 1752 973 564 355
06-06 59° 75° 2828 1787 998 581 367
06-07 57° 76° 2872 1821 1023 597 378
06-08 48° 75° 2911 1851 1042 609 385
06-09 48° 80° 2953 1883 1064 623 394
06-10 58° 81° 3001 1920 1092 642 409
06-11 52° 67° 3039 1948 1109 652 413
06-12 42° 69° 3072 1972 1123 658 414
06-13 53° 68° 3111 2001 1142 669 420
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
06-14 55° 80° 3157 2036 1167 686 432
06-15 54° 75° 3199 2069 1190 701 442
06-16 48° 72° 3237 2097 1208 711 447
06-17 52° 80° 3281 2131 1232 727 458
06-18 58° 84° 3330 2170 1261 748 474
06-19 59° 86° 3381 2210 1292 770 492
06-20 58° 85° 3431 2250 1321 792 508
06-21 61° 87° 3482 2292 1353 816 527
06-22 61° 86° 3534 2334 1385 840 546
06-23 57° 87° 3584 2374 1415 862 563
06-24 59° 90° 3636 2416 1447 886 582
06-25 66° 77° 3686 2455 1477 907 599
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
06-26 66° 74° 3734 2493 1505 927 613
06-27 58° 80° 3781 2531 1532 947 628
06-28 60° 82° 3830 2569 1561 967 644
06-29 66° 85° 3883 2613 1594 993 664
06-30 68° 83° 3937 2657 1628 1019 685
07-01 67° 80° 3988 2698 1659 1042 703
07-02 68° 83° 4042 2742 1693 1068 724
07-03 61° 87° 4095 2784 1725 1092 743
07-04 67° 88° 4150 2830 1761 1120 766
07-05 70° 88° 4207 2876 1798 1148 790
07-06 63° 79° 4256 2915 1826 1169 805
07-07 57° 77° 4301 2950 1851 1186 817
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
07-08 61° 79° 4349 2988 1879 1206 832
07-09 56° 82° 4396 3025 1907 1225 847
07-10 60° 85° 4447 3066 1938 1248 864
07-11 66° 82° 4499 3108 1969 1272 883
07-12 60° 68° 4541 3140 1991 1286 892
07-13 59° 77° 4587 3176 2017 1304 905
07-14 66° 86° 4641 3220 2051 1330 926
07-15 66° 82° 4693 3262 2083 1354 945
07-16 60° 79° 4741 3300 2111 1374 960
07-17 58° 75° 4785 3335 2136 1391 972
07-18 53° 77° 4828 3368 2159 1406 982
07-19 56° 82° 4875 3405 2186 1425 996
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
07-20 64° 81° 4926 3445 2217 1447 1013
07-21 57° 80° 4972 3482 2243 1466 1027
07-22 59° 81° 5020 3520 2271 1486 1042
07-23 59° 81° 5068 3558 2299 1506 1057
07-24 61° 84° 5119 3598 2329 1528 1074
07-25 65° 87° 5173 3642 2364 1554 1095
07-26 67° 84° 5226 3686 2397 1580 1116
07-27 65° 89° 5281 3731 2432 1607 1138
07-28 68° 88° 5337 3777 2468 1635 1161
07-29 67° 81° 5389 3819 2500 1659 1180
07-30 62° 78° 5437 3857 2528 1679 1195
07-31 59° 79° 5485 3894 2555 1698 1209
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
08-01 61° 81° 5534 3933 2584 1719 1225
08-02 63° 82° 5584 3974 2615 1742 1243
08-03 63° 84° 5636 4015 2646 1765 1261
08-04 67° 83° 5688 4058 2679 1790 1281
08-05 63° 82° 5739 4098 2710 1812 1298
08-06 63° 78° 5788 4137 2738 1833 1314
08-07 64° 79° 5837 4176 2768 1854 1330
08-08 60° 83° 5887 4216 2797 1876 1347
08-09 59° 78° 5933 4253 2824 1895 1361
08-10 61° 82° 5983 4292 2853 1916 1377
08-11 65° 84° 6035 4335 2886 1941 1397
08-12 62° 84° 6086 4376 2917 1964 1415
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
08-13 59° 76° 6132 4412 2943 1982 1428
08-14 62° 67° 6174 4444 2965 1996 1437
08-15 59° 77° 6220 4480 2991 2014 1450
08-16 56° 79° 6266 4516 3017 2032 1463
08-17 60° 74° 6311 4551 3042 2049 1475
08-18 53° 75° 6353 4583 3064 2063 1484
08-19 60° 83° 6402 4622 3093 2084 1500
08-20 68° 90° 6459 4669 3130 2113 1524
08-21 64° 83° 6511 4710 3161 2136 1542
08-22 62° 87° 6563 4753 3194 2161 1562
08-23 75° 96° 6627 4807 3238 2197 1593
08-24 78° 95° 6692 4861 3283 2233 1625
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
08-25 70° 81° 6745 4905 3316 2259 1645
08-26 62° 73° 6791 4940 3342 2276 1657
08-27 58° 75° 6835 4975 3366 2293 1669
08-28 51° 79° 6879 5008 3389 2308 1679
08-29 63° 81° 6928 5048 3419 2330 1696
08-30 52° 70° 6968 5077 3438 2341 1702
08-31 46° 77° 7007 5107 3458 2353 1709
09-01 52° 81° 7052 5141 3483 2369 1720
09-02 60° 87° 7104 5183 3514 2393 1739
09-03 66° 92° 7161 5230 3551 2422 1763
09-04 67° 91° 7218 5277 3588 2451 1787
09-05 73° 86° 7275 5324 3625 2480 1811
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
09-06 68° 75° 7325 5364 3655 2502 1828
09-07 61° 68° 7367 5396 3678 2516 1838
09-08 59° 67° 7408 5427 3699 2529 1845
09-09 48° 75° 7448 5457 3718 2541 1852
09-10 54° 80° 7493 5492 3743 2558 1864
09-11 58° 65° 7532 5522 3763 2570 1871
09-12 54° 70° 7573 5552 3783 2582 1878
09-13 50° 66° 7608 5578 3799 2590 1881
09-14 44° 72° 7645 5604 3815 2598 1884
09-15 48° 76° 7685 5634 3836 2610 1891
09-16 58° 73° 7728 5668 3859 2626 1902
09-17 56° 70° 7769 5699 3880 2639 1910
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
09-18 50° 71° 7808 5727 3898 2649 1915
09-19 57° 68° 7848 5758 3919 2662 1923
09-20 60° 76° 7894 5793 3945 2679 1935
09-21 61° 74° 7939 5829 3970 2697 1948
09-22 64° 75° 7987 5866 3997 2716 1962
09-23 63° 80° 8036 5906 4027 2738 1979
09-24 58° 77° 8082 5942 4053 2756 1992
09-25 63° 73° 8129 5978 4079 2774 2005
09-26 63° 68° 8172 6012 4103 2790 2016
09-27 63° 68° 8216 6045 4126 2805 2026
09-28 59° 67° 8257 6076 4148 2818 2034
09-29 52° 75° 8298 6108 4169 2832 2043
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
09-30 60° 83° 8348 6147 4199 2853 2060

 

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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