Welcome!

It appears to be your first time visiting GDDTracker
Please enter your zip code for a customized experience. Also, be sure and watch our video introduction video.

   
       

Japanese Beetle Adults Emerge, Breed and Feed (GDD 50)
through Thu, Sep. 26. 2024

 

GDD Total: 2509 (Base 50) through Thu, Sep. 26, 2024

  

West Branch, MI

        

Forecast »

“Flashback” to 2023

9/25

9/26

9/27

9/28

9/29

9/30

10/1

10/2

10/3

10/4

10/5

10/6

10/7

Done

2701

Over

2151

Adult Emergence

950

Close

751

Under

0

 

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 24° 34° 7 0 0 0 0
02-16 19° 25° 7 0 0 0 0
02-17 11° 22° 7 0 0 0 0
02-18 21° 32° 11 0 0 0 0
02-19 10° 34° 11 0 0 0 0
02-20 14° 44° 18 0 0 0 0
02-21 34° 53° 40 11 1 0 0
02-22 28° 53° 58 20 1 0 0
02-23 16° 36° 62 20 1 0 0
02-24 11° 30° 62 20 1 0 0
02-25 25° 48° 77 24 1 0 0
02-26 23° 48° 90 28 1 0 0
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
02-27 41° 72° 125 52 16 7 2
02-28 17° 60° 141 59 16 7 2
02-29 12° 31° 141 59 16 7 2
03-01 24° 50° 156 64 16 7 2
03-02 35° 54° 179 76 19 7 2
03-03 31° 58° 201 88 21 7 2
03-04 40° 71° 234 112 34 12 2
03-05 39° 59° 261 129 41 12 2
03-06 31° 50° 280 138 41 12 2
03-07 25° 49° 295 143 41 12 2
03-08 32° 46° 312 150 41 12 2
03-09 31° 41° 326 154 41 12 2
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
03-10 25° 36° 335 154 41 12 2
03-11 23° 57° 353 162 41 12 2
03-12 30° 70° 381 180 49 12 2
03-13 35° 66° 409 199 58 13 2
03-14 39° 47° 430 210 59 13 2
03-15 31° 45° 446 215 59 13 2
03-16 30° 51° 465 224 59 13 2
03-17 24° 35° 472 224 59 13 2
03-18 23° 33° 478 224 59 13 2
03-19 26° 40° 489 225 59 13 2
03-20 19° 32° 493 225 59 13 2
03-21 17° 33° 496 225 59 13 2
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
03-22 19° 30° 498 225 59 13 2
03-23 20° 34° 503 225 59 13 2
03-24 17° 37° 508 225 59 13 2
03-25 28° 61° 531 237 61 13 2
03-26 41° 57° 558 254 68 13 2
03-27 31° 41° 572 259 68 13 2
03-28 26° 41° 584 261 68 13 2
03-29 23° 49° 598 265 68 13 2
03-30 29° 41° 611 268 68 13 2
03-31 31° 42° 625 272 68 13 2
04-01 30° 47° 642 278 68 13 2
04-02 35° 43° 659 285 68 13 2
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
04-03 36° 43° 676 293 68 13 2
04-04 33° 41° 692 298 68 13 2
04-05 30° 50° 709 306 68 13 2
04-06 32° 59° 733 320 72 13 2
04-07 27° 56° 753 329 72 13 2
04-08 43° 70° 787 353 86 19 3
04-09 44° 72° 823 379 102 27 6
04-10 37° 67° 853 399 112 29 6
04-11 46° 52° 880 416 119 29 6
04-12 42° 48° 902 429 122 29 6
04-13 38° 60° 930 446 129 29 6
04-14 43° 74° 966 472 145 37 10
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
04-15 36° 63° 994 490 153 37 10
04-16 37° 60° 1020 506 159 37 10
04-17 44° 55° 1048 524 167 37 10
04-18 45° 54° 1075 542 175 37 10
04-19 44° 52° 1101 558 181 37 10
04-20 34° 43° 1118 565 181 37 10
04-21 31° 48° 1136 572 181 37 10
04-22 28° 64° 1160 586 185 37 10
04-23 44° 66° 1193 610 198 43 10
04-24 30° 47° 1210 616 198 43 10
04-25 24° 51° 1225 621 198 43 10
04-26 29° 60° 1247 634 201 43 10
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
04-27 49° 76° 1288 664 221 55 17
04-28 49° 67° 1324 690 237 63 21
04-29 45° 67° 1358 714 251 69 21
04-30 46° 58° 1388 734 261 71 21
05-01 43° 75° 1425 761 278 80 25
05-02 45° 64° 1457 784 291 85 25
05-03 52° 73° 1498 814 311 97 33
05-04 45° 69° 1533 840 327 105 35
05-05 52° 71° 1573 869 346 116 42
05-06 43° 67° 1606 892 359 121 42
05-07 39° 69° 1638 914 371 125 42
05-08 51° 62° 1672 939 386 132 43
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
05-09 41° 61° 1701 958 395 132 43
05-10 39° 65° 1731 978 405 135 43
05-11 48° 58° 1762 999 416 138 43
05-12 38° 73° 1796 1022 429 143 43
05-13 57° 74° 1839 1056 453 159 54
05-14 51° 67° 1877 1083 470 168 58
05-15 45° 71° 1913 1109 486 176 62
05-16 42° 75° 1949 1136 503 185 65
05-17 58° 78° 1995 1172 529 203 78
05-18 56° 82° 2043 1209 556 222 92
05-19 61° 85° 2094 1250 587 245 110
05-20 54° 79° 2138 1285 612 262 122
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
05-21 63° 75° 2185 1322 639 281 136
05-22 62° 75° 2232 1358 665 299 149
05-23 54° 76° 2275 1391 688 314 159
05-24 51° 73° 2315 1422 708 326 167
05-25 57° 75° 2359 1455 732 342 177
05-26 51° 72° 2398 1485 751 353 184
05-27 58° 62° 2436 1513 770 363 189
05-28 55° 74° 2479 1545 792 378 198
05-29 51° 69° 2517 1574 810 388 204
05-30 41° 71° 2551 1597 824 394 204
05-31 41° 78° 2588 1625 841 403 209
06-01 50° 78° 2630 1657 864 417 218
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
06-02 59° 76° 2676 1692 889 435 230
06-03 57° 74° 2719 1726 913 451 241
06-04 66° 85° 2773 1769 946 476 261
06-05 64° 79° 2822 1809 976 498 278
06-06 57° 71° 2865 1841 998 512 287
06-07 56° 64° 2903 1869 1016 522 293
06-08 52° 66° 2940 1897 1033 531 297
06-09 50° 67° 2977 1923 1050 540 300
06-10 48° 70° 3013 1950 1067 548 304
06-11 41° 72° 3048 1974 1081 555 306
06-12 60° 84° 3098 2014 1111 577 322
06-13 68° 84° 3152 2058 1145 603 343
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
06-14 56° 77° 3196 2093 1169 619 355
06-15 49° 72° 3234 2121 1188 630 360
06-16 54° 85° 3282 2158 1215 649 374
06-17 72° 93° 3342 2209 1256 681 402
06-18 75° 90° 3403 2259 1296 714 429
06-19 78° 93° 3467 2313 1340 750 460
06-20 66° 81° 3518 2355 1372 774 479
06-21 66° 82° 3570 2397 1404 798 498
06-22 66° 75° 3619 2435 1432 818 513
06-23 67° 77° 3669 2475 1462 840 530
06-24 59° 80° 3716 2512 1489 859 545
06-25 65° 81° 3767 2553 1520 882 563
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
06-26 62° 81° 3817 2593 1550 904 579
06-27 51° 72° 3856 2623 1570 916 586
06-28 52° 68° 3894 2651 1588 926 591
06-29 66° 84° 3947 2694 1621 951 611
06-30 52° 67° 3985 2722 1639 960 616
07-01 46° 76° 4024 2750 1657 971 621
07-02 53° 68° 4062 2779 1676 982 627
07-03 62° 84° 4113 2820 1707 1005 645
07-04 67° 84° 4167 2863 1740 1030 665
07-05 63° 77° 4214 2901 1768 1050 680
07-06 61° 78° 4262 2938 1795 1069 694
07-07 58° 80° 4309 2975 1822 1088 709
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
07-08 66° 82° 4361 3018 1855 1112 728
07-09 65° 84° 4414 3060 1887 1137 747
07-10 65° 72° 4460 3097 1914 1156 761
07-11 60° 82° 4509 3135 1942 1176 777
07-12 60° 83° 4558 3175 1972 1198 793
07-13 61° 86° 4610 3216 2003 1221 811
07-14 70° 85° 4665 3262 2039 1249 834
07-15 71° 88° 4723 3310 2076 1278 859
07-16 66° 81° 4775 3351 2108 1302 877
07-17 60° 77° 4821 3388 2135 1321 891
07-18 53° 75° 4863 3420 2156 1334 900
07-19 50° 81° 4906 3453 2180 1350 910
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
07-20 56° 85° 4955 3491 2208 1370 926
07-21 63° 78° 5003 3530 2237 1391 941
07-22 58° 82° 5051 3568 2265 1411 956
07-23 60° 82° 5101 3607 2294 1432 972
07-24 63° 75° 5148 3644 2321 1451 986
07-25 55° 78° 5192 3679 2346 1468 998
07-26 51° 81° 5237 3713 2370 1484 1009
07-27 54° 83° 5284 3750 2397 1503 1023
07-28 56° 87° 5333 3789 2426 1524 1039
07-29 70° 87° 5389 3836 2463 1553 1063
07-30 70° 86° 5446 3882 2499 1581 1086
07-31 66° 86° 5500 3926 2533 1607 1107
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
08-01 66° 82° 5552 3968 2565 1631 1126
08-02 68° 87° 5607 4014 2600 1658 1149
08-03 65° 86° 5660 4057 2634 1684 1169
08-04 62° 84° 5711 4098 2665 1707 1187
08-05 64° 77° 5760 4137 2694 1727 1203
08-06 57° 75° 5805 4171 2718 1744 1214
08-07 50° 75° 5845 4202 2738 1756 1222
08-08 54° 78° 5889 4236 2763 1773 1233
08-09 55° 75° 5932 4269 2786 1788 1243
08-10 53° 66° 5970 4297 2804 1797 1248
08-11 56° 73° 6013 4329 2826 1812 1257
08-12 48° 80° 6055 4361 2848 1826 1266
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
08-13 53° 81° 6100 4396 2873 1843 1278
08-14 53° 82° 6145 4432 2899 1861 1291
08-15 54° 81° 6191 4467 2924 1878 1304
08-16 65° 72° 6237 4504 2951 1897 1317
08-17 66° 73° 6285 4541 2978 1916 1331
08-18 64° 73° 6331 4578 3005 1935 1345
08-19 53° 66° 6369 4605 3022 1944 1349
08-20 48° 71° 6406 4632 3039 1953 1353
08-21 46° 74° 6444 4660 3057 1963 1359
08-22 46° 76° 6483 4690 3077 1974 1365
08-23 51° 77° 6525 4722 3099 1989 1374
08-24 54° 81° 6571 4757 3124 2006 1386
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
08-25 57° 83° 6619 4795 3152 2026 1401
08-26 63° 90° 6673 4840 3187 2053 1423
08-27 73° 91° 6734 4890 3227 2085 1450
08-28 61° 72° 6778 4924 3251 2101 1462
08-29 60° 77° 6824 4961 3278 2120 1475
08-30 65° 81° 6875 5002 3309 2143 1493
08-31 57° 82° 6923 5039 3336 2162 1507
09-01 54° 73° 6964 5071 3358 2176 1516
09-02 42° 72° 6999 5096 3373 2182 1518
09-03 41° 75° 7035 5122 3389 2191 1521
09-04 46° 78° 7075 5151 3408 2202 1528
09-05 49° 83° 7119 5185 3432 2218 1539
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
09-06 51° 66° 7155 5212 3449 2227 1542
09-07 45° 62° 7187 5233 3460 2230 1542
09-08 39° 70° 7219 5255 3472 2234 1542
09-09 55° 78° 7263 5290 3496 2250 1553
09-10 44° 78° 7302 5319 3516 2261 1559
09-11 55° 80° 7347 5354 3541 2279 1572
09-12 50° 85° 7393 5390 3566 2296 1584
09-13 50° 83° 7437 5424 3591 2313 1596
09-14 50° 81° 7481 5457 3614 2328 1606
09-15 51° 84° 7527 5493 3640 2346 1619
09-16 52° 84° 7572 5529 3666 2364 1632
09-17 50° 80° 7615 5562 3689 2379 1642
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
09-18 50° 80° 7658 5595 3712 2394 1651
09-19 53° 82° 7704 5630 3737 2411 1664
09-20 56° 79° 7749 5666 3763 2429 1676
09-21 55° 83° 7796 5703 3789 2447 1690
09-22 60° 68° 7838 5734 3811 2461 1699
09-23 52° 71° 7877 5764 3831 2473 1705
09-24 51° 73° 7917 5794 3850 2484 1712
09-25 55° 72° 7959 5825 3872 2498 1721
09-26 48° 73° 7998 5854 3891 2509 1727
09-27 47° 73° 8036 5882 3909 2519 1732
09-28 55° 74° 8079 5915 3932 2534 1742
09-29 54° 77° 8122 5949 3956 2549 1752
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
09-30 52° 76° 8164 5980 3977 2563 1761
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
02-15 35° 48° 19 9 0 0 0
02-16 20° 34° 24 9 0 0 0
02-17 12° 22° 24 9 0 0 0
02-18 15° 37° 28 9 0 0 0
02-19 30° 46° 44 15 0 0 0
02-20 28° 37° 55 16 0 0 0
02-21 26° 33° 62 16 0 0 0
02-22 21° 26° 64 16 0 0 0
02-23 21° 27° 66 16 0 0 0
02-24 5° 19° 66 16 0 0 0
02-25 14° 29° 66 16 0 0 0
02-26 17° 35° 70 16 0 0 0
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
02-27 14° 29° 70 16 0 0 0
02-28 27° 39° 81 17 0 0 0
02-29 n/a n/a n/a n/a n/a n/a n/a
03-01 31° 40° 95 21 0 0 0
03-02 30° 35° 105 21 0 0 0
03-03 27° 34° 114 21 0 0 0
03-04 27° 45° 128 25 0 0 0
03-05 31° 45° 144 32 0 0 0
03-06 30° 35° 155 32 0 0 0
03-07 24° 41° 165 33 0 0 0
03-08 18° 39° 172 33 0 0 0
03-09 25° 40° 182 33 0 0 0
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
03-10 26° 33° 190 33 0 0 0
03-11 19° 32° 193 33 0 0 0
03-12 22° 30° 197 33 0 0 0
03-13 19° 27° 198 33 0 0 0
03-14 12° 33° 199 33 0 0 0
03-15 12° 47° 206 33 0 0 0
03-16 37° 55° 230 47 4 0 0
03-17 25° 44° 243 50 4 0 0
03-18 17° 25° 243 50 4 0 0
03-19 16° 38° 248 50 4 0 0
03-20 29° 48° 265 56 4 0 0
03-21 28° 42° 278 59 4 0 0
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
03-22 28° 44° 292 63 4 0 0
03-23 30° 46° 308 69 4 0 0
03-24 24° 43° 319 71 4 0 0
03-25 29° 34° 328 71 4 0 0
03-26 24° 49° 343 75 4 0 0
03-27 29° 47° 359 81 4 0 0
03-28 19° 50° 371 84 4 0 0
03-29 21° 33° 376 84 4 0 0
03-30 12° 45° 383 84 4 0 0
03-31 36° 46° 402 93 4 0 0
04-01 29° 43° 416 96 4 0 0
04-02 19° 44° 425 96 4 0 0
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
04-03 40° 62° 454 115 13 1 0
04-04 36° 43° 471 123 13 1 0
04-05 37° 67° 502 143 23 3 0
04-06 34° 50° 521 153 23 3 0
04-07 27° 45° 536 157 23 3 0
04-08 25° 43° 547 159 23 3 0
04-09 33° 64° 574 175 29 3 0
04-10 42° 69° 607 199 43 8 1
04-11 50° 75° 648 230 63 21 8
04-12 52° 81° 693 264 88 38 20
04-13 60° 84° 743 304 118 60 37
04-14 48° 82° 786 338 141 75 47
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
04-15 53° 84° 833 374 168 94 61
04-16 42° 73° 868 400 183 101 63
04-17 34° 42° 884 406 183 101 63
04-18 30° 39° 897 408 183 101 63
04-19 32° 47° 915 416 183 101 63
04-20 37° 50° 936 428 185 101 63
04-21 47° 56° 966 447 195 103 63
04-22 36° 48° 986 457 195 103 63
04-23 32° 44° 1002 463 195 103 63
04-24 31° 47° 1019 471 195 103 63
04-25 26° 47° 1034 475 195 103 63
04-26 29° 45° 1049 481 195 103 63
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
04-27 25° 62° 1071 492 196 103 63
04-28 37° 58° 1096 508 202 103 63
04-29 48° 57° 1127 528 212 105 63
04-30 38° 48° 1148 539 213 105 63
05-01 34° 46° 1166 547 213 105 63
05-02 35° 41° 1182 553 213 105 63
05-03 38° 55° 1206 567 218 105 63
05-04 35° 64° 1234 585 225 105 63
05-05 46° 56° 1263 604 235 106 63
05-06 48° 69° 1299 631 251 115 67
05-07 48° 63° 1333 654 264 120 67
05-08 43° 67° 1365 677 277 125 67
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
05-09 38° 74° 1399 701 291 131 68
05-10 43° 80° 1439 730 311 142 74
05-11 51° 82° 1484 765 336 159 86
05-12 54° 80° 1529 800 361 176 98
05-13 56° 77° 1573 835 385 193 110
05-14 47° 62° 1605 857 397 197 110
05-15 34° 77° 1639 880 411 202 110
05-16 51° 77° 1681 912 433 216 119
05-17 37° 57° 1706 927 438 216 119
05-18 31° 64° 1732 943 443 216 119
05-19 47° 70° 1769 970 460 225 123
05-20 44° 68° 1803 994 474 231 124
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
05-21 46° 77° 1842 1024 494 243 131
05-22 44° 71° 1878 1049 509 250 133
05-23 45° 80° 1918 1080 530 263 141
05-24 45° 63° 1950 1102 542 267 141
05-25 36° 64° 1978 1120 550 267 141
05-26 32° 74° 2010 1141 561 270 141
05-27 39° 78° 2046 1168 578 279 144
05-28 45° 83° 2088 1199 600 293 153
05-29 44° 85° 2131 1232 623 308 163
05-30 51° 88° 2178 1270 650 327 177
05-31 60° 88° 2231 1312 683 351 197
06-01 57° 89° 2282 1353 713 374 215
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
06-02 57° 90° 2333 1395 745 398 233
06-03 62° 86° 2385 1437 777 422 252
06-04 49° 79° 2428 1469 799 436 262
06-05 53° 83° 2473 1505 825 454 274
06-06 56° 75° 2517 1538 849 470 285
06-07 47° 72° 2554 1566 866 479 289
06-08 49° 74° 2594 1596 886 491 296
06-09 46° 79° 2635 1626 907 504 304
06-10 54° 84° 2682 1664 934 523 318
06-11 51° 61° 2716 1688 948 529 319
06-12 50° 66° 2752 1713 964 537 322
06-13 48° 72° 2790 1741 981 546 327
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
06-14 43° 76° 2827 1769 999 556 331
06-15 53° 64° 2864 1795 1015 564 335
06-16 55° 73° 2906 1827 1038 579 344
06-17 47° 81° 2948 1859 1060 593 353
06-18 49° 83° 2992 1893 1084 609 364
06-19 53° 83° 3038 1930 1110 627 377
06-20 56° 84° 3086 1968 1138 647 392
06-21 59° 85° 3136 2008 1168 669 409
06-22 59° 85° 3186 2048 1198 691 426
06-23 62° 82° 3236 2088 1228 713 443
06-24 61° 91° 3290 2132 1262 739 464
06-25 64° 85° 3343 2174 1294 763 484
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
06-26 64° 76° 3390 2212 1322 783 498
06-27 62° 76° 3437 2249 1349 802 512
06-28 51° 80° 3481 2282 1372 817 523
06-29 60° 82° 3530 2321 1401 838 539
06-30 65° 88° 3584 2366 1436 865 560
07-01 62° 83° 3634 2406 1466 887 577
07-02 66° 86° 3688 2450 1500 913 598
07-03 63° 87° 3741 2493 1533 938 618
07-04 64° 91° 3797 2538 1569 966 641
07-05 68° 93° 3855 2587 1607 996 666
07-06 67° 81° 3908 2629 1640 1020 686
07-07 52° 77° 3950 2662 1662 1035 695
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
07-08 57° 66° 3990 2692 1682 1047 702
07-09 49° 77° 4031 2723 1703 1060 710
07-10 56° 85° 4080 2761 1731 1080 726
07-11 59° 77° 4126 2797 1758 1098 739
07-12 52° 73° 4167 2828 1778 1111 747
07-13 54° 76° 4210 2861 1801 1126 757
07-14 54° 76° 4253 2894 1825 1142 767
07-15 64° 77° 4301 2933 1853 1162 782
07-16 57° 79° 4347 2968 1879 1180 795
07-17 57° 75° 4391 3003 1903 1196 806
07-18 52° 75° 4433 3034 1925 1209 815
07-19 55° 80° 4478 3070 1950 1227 827
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
07-20 61° 80° 4527 3108 1979 1247 843
07-21 59° 82° 4575 3147 2007 1268 858
07-22 53° 81° 4621 3182 2032 1285 871
07-23 55° 79° 4666 3217 2057 1302 883
07-24 57° 81° 4713 3254 2084 1321 897
07-25 57° 85° 4762 3293 2113 1342 913
07-26 66° 81° 4813 3334 2145 1366 931
07-27 66° 86° 4867 3379 2179 1392 952
07-28 69° 89° 4925 3426 2216 1421 977
07-29 65° 80° 4975 3466 2247 1444 994
07-30 53° 76° 5018 3499 2269 1458 1004
07-31 55° 78° 5062 3534 2294 1475 1015
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
08-01 55° 77° 5106 3568 2318 1491 1026
08-02 59° 80° 5154 3605 2345 1510 1041
08-03 60° 87° 5205 3646 2377 1534 1059
08-04 60° 80° 5253 3685 2405 1554 1074
08-05 55° 77° 5298 3719 2429 1570 1086
08-06 51° 72° 5337 3749 2449 1582 1092
08-07 60° 78° 5385 3786 2476 1601 1107
08-08 57° 84° 5433 3825 2505 1622 1122
08-09 55° 84° 5481 3862 2533 1642 1137
08-10 61° 79° 5529 3901 2561 1662 1152
08-11 49° 75° 5569 3931 2581 1674 1159
08-12 63° 79° 5618 3970 2610 1695 1175
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
08-13 55° 75° 5661 4003 2633 1710 1185
08-14 55° 72° 5703 4035 2655 1724 1194
08-15 61° 76° 5750 4071 2681 1742 1208
08-16 52° 83° 5795 4106 2707 1760 1220
08-17 56° 68° 5835 4136 2727 1772 1227
08-18 54° 73° 5876 4168 2748 1785 1235
08-19 47° 78° 5916 4198 2768 1797 1242
08-20 63° 92° 5972 4243 2804 1824 1265
08-21 59° 78° 6018 4279 2830 1843 1278
08-22 57° 72° 6060 4312 2852 1857 1287
08-23 62° 69° 6104 4345 2876 1872 1298
08-24 65° 73° 6150 4382 2902 1891 1311
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
08-25 64° 77° 6199 4421 2931 1912 1327
08-26 54° 67° 6238 4449 2949 1922 1333
08-27 44° 73° 6274 4476 2966 1931 1336
08-28 43° 78° 6313 4504 2985 1941 1342
08-29 53° 67° 6351 4532 3003 1952 1347
08-30 50° 69° 6389 4560 3020 1961 1352
08-31 41° 74° 6424 4586 3036 1969 1354
09-01 46° 78° 6464 4616 3056 1981 1361
09-02 60° 79° 6512 4653 3084 2001 1376
09-03 62° 87° 6564 4696 3116 2025 1395
09-04 64° 93° 6621 4742 3153 2054 1419
09-05 65° 90° 6677 4788 3189 2082 1442
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
09-06 71° 79° 6730 4831 3221 2106 1462
09-07 57° 70° 6771 4863 3243 2120 1470
09-08 52° 64° 6807 4889 3259 2128 1473
09-09 44° 70° 6842 4914 3274 2135 1475
09-10 44° 74° 6880 4941 3291 2144 1480
09-11 56° 66° 6919 4970 3311 2156 1486
09-12 54° 63° 6956 4997 3327 2164 1490
09-13 46° 67° 6990 5022 3342 2171 1491
09-14 41° 67° 7022 5043 3354 2175 1491
09-15 42° 71° 7057 5068 3369 2181 1493
09-16 48° 72° 7095 5096 3386 2191 1498
09-17 53° 69° 7134 5125 3406 2203 1504
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
09-18 47° 64° 7168 5149 3419 2208 1505
09-19 38° 69° 7199 5171 3431 2212 1505
09-20 47° 75° 7238 5200 3450 2223 1511
09-21 54° 82° 7285 5236 3476 2241 1524
09-22 56° 81° 7331 5272 3503 2260 1537
09-23 49° 73° 7370 5302 3522 2271 1544
09-24 47° 74° 7409 5330 3540 2281 1549
09-25 52° 75° 7450 5362 3562 2295 1558
09-26 57° 64° 7489 5390 3581 2306 1563
09-27 56° 63° 7526 5418 3598 2315 1568
09-28 52° 68° 7564 5446 3616 2325 1573
09-29 55° 66° 7603 5474 3635 2336 1578
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
09-30 48° 72° 7641 5503 3653 2346 1584

 

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!
 

 

© Copyright 2004-2024, Department of Crop and Soil Sciences, Michigan State University.
Weather data and programming assistance provided by Enviro-Weather and NWS
All Rights Reserved. Custom web development by Dynamite Inc.