Please Note

The GDD models have only been “ground-truthed” in the Great Lakes region. Use of models outside of this region, including the North East, Great Plains and Transition Zones, should be used with caution. We do not recommend the GDD models we use for the mid/southern transition zone and southern states.

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Black Turfgrass Ataenius Egg Laying (GDD 50)
forecast for Sun, Sep. 22. 2024

 
  

Apple Valley, MN

        

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 17° 29° 1 0 0 0 0
02-16 8° 19° 1 0 0 0 0
02-17 4° 27° 1 0 0 0 0
02-18 21° 35° 7 0 0 0 0
02-19 19° 42° 15 0 0 0 0
02-20 29° 44° 30 5 0 0 0
02-21 24° 48° 44 9 0 0 0
02-22 30° 50° 62 17 0 0 0
02-23 23° 36° 70 17 0 0 0
02-24 17° 46° 79 17 0 0 0
02-25 33° 50° 98 26 0 0 0
02-26 29° 64° 123 41 5 0 0
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
02-27 15° 50° 133 41 5 0 0
02-28 5° 19° 133 41 5 0 0
02-29 11° 55° 145 42 5 0 0
03-01 35° 57° 169 56 9 0 0
03-02 32° 63° 194 72 15 0 0
03-03 41° 74° 229 97 30 7 2
03-04 30° 40° 243 100 30 7 2
03-05 24° 48° 256 104 30 7 2
03-06 27° 54° 275 113 30 7 2
03-07 34° 48° 294 122 30 7 2
03-08 25° 39° 304 122 30 7 2
03-09 21° 40° 312 122 30 7 2
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
03-10 18° 51° 325 124 30 7 2
03-11 34° 67° 354 143 38 8 2
03-12 42° 66° 386 165 50 12 2
03-13 39° 65° 415 185 60 14 2
03-14 45° 57° 445 204 69 15 2
03-15 32° 50° 464 214 69 15 2
03-16 35° 49° 484 224 69 15 2
03-17 24° 33° 491 224 69 15 2
03-18 22° 37° 498 224 69 15 2
03-19 34° 51° 518 234 70 15 2
03-20 18° 31° 521 234 70 15 2
03-21 25° 29° 526 234 70 15 2
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
03-22 26° 32° 533 234 70 15 2
03-23 16° 32° 535 234 70 15 2
03-24 26° 32° 542 234 70 15 2
03-25 32° 36° 555 236 70 15 2
03-26 22° 34° 561 236 70 15 2
03-27 17° 28° 561 236 70 15 2
03-28 15° 36° 565 236 70 15 2
03-29 20° 44° 575 236 70 15 2
03-30 35° 45° 593 244 70 15 2
03-31 33° 47° 611 252 70 15 2
04-01 33° 42° 626 257 70 15 2
04-02 34° 41° 642 263 70 15 2
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
04-03 34° 49° 661 272 70 15 2
04-04 33° 52° 682 283 70 15 2
04-05 29° 56° 702 293 71 15 2
04-06 33° 58° 726 307 74 15 2
04-07 40° 48° 748 319 77 15 2
04-08 42° 49° 772 333 80 15 2
04-09 40° 60° 799 351 88 15 2
04-10 42° 69° 833 374 101 20 3
04-11 45° 59° 863 394 111 22 3
04-12 42° 60° 892 413 121 24 3
04-13 38° 83° 930 441 139 34 8
04-14 49° 72° 969 470 157 44 13
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
04-15 47° 61° 1001 492 169 48 13
04-16 47° 59° 1032 513 180 51 13
04-17 44° 53° 1058 529 187 51 13
04-18 45° 50° 1083 545 192 51 13
04-19 32° 39° 1097 548 192 51 13
04-20 31° 46° 1114 555 192 51 13
04-21 32° 52° 1133 565 192 51 13
04-22 40° 68° 1166 587 204 55 13
04-23 44° 60° 1196 607 214 57 13
04-24 33° 59° 1220 621 219 57 13
04-25 43° 68° 1253 645 232 63 14
04-26 45° 55° 1282 663 240 63 14
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
04-27 50° 58° 1313 684 252 67 14
04-28 46° 53° 1341 702 259 67 14
04-29 44° 48° 1365 716 263 67 14
04-30 42° 68° 1398 739 277 72 14
05-01 48° 63° 1432 763 290 78 15
05-02 48° 57° 1462 783 301 80 15
05-03 44° 69° 1497 808 315 87 16
05-04 46° 60° 1528 829 326 90 16
05-05 42° 67° 1560 851 339 94 16
05-06 48° 73° 1599 880 357 105 22
05-07 56° 70° 1640 911 379 118 30
05-08 47° 74° 1679 940 398 129 36
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
05-09 50° 66° 1715 966 414 137 39
05-10 43° 74° 1751 993 430 145 43
05-11 46° 75° 1790 1021 448 156 48
05-12 57° 86° 1839 1061 478 177 65
05-13 52° 71° 1879 1090 498 189 71
05-14 49° 71° 1917 1118 515 199 76
05-15 49° 73° 1956 1147 534 210 82
05-16 57° 69° 1997 1178 555 223 90
05-17 55° 84° 2044 1215 583 242 104
05-18 64° 80° 2094 1255 613 264 122
05-19 49° 71° 2132 1283 631 274 127
05-20 58° 78° 2178 1319 657 292 140
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
05-21 62° 71° 2223 1354 681 309 151
05-22 52° 69° 2261 1383 700 319 157
05-23 54° 78° 2306 1417 724 336 168
05-24 51° 71° 2345 1446 743 347 174
05-25 47° 73° 2382 1473 761 356 179
05-26 57° 67° 2422 1504 781 368 186
05-27 50° 65° 2458 1529 796 376 188
05-28 52° 64° 2494 1555 813 384 191
05-29 48° 70° 2531 1582 830 393 195
05-30 55° 76° 2575 1616 853 409 206
05-31 60° 67° 2616 1647 875 422 215
06-01 60° 74° 2662 1683 900 440 227
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
06-02 56° 75° 2706 1717 924 456 238
06-03 63° 82° 2756 1757 954 478 255
06-04 63° 84° 2807 1798 985 501 273
06-05 56° 76° 2851 1832 1009 517 284
06-06 61° 71° 2894 1865 1033 532 294
06-07 57° 76° 2939 1900 1057 549 306
06-08 58° 75° 2983 1934 1082 565 317
06-09 57° 72° 3025 1966 1104 579 327
06-10 52° 74° 3066 1997 1125 592 334
06-11 57° 82° 3114 2035 1152 612 349
06-12 60° 79° 3161 2072 1180 631 363
06-13 64° 82° 3212 2113 1211 654 382
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
06-14 60° 79° 3260 2151 1238 674 396
06-15 63° 68° 3303 2184 1262 689 406
06-16 64° 87° 3357 2228 1295 715 427
06-17 57° 77° 3401 2262 1320 731 438
06-18 65° 83° 3453 2304 1352 755 458
06-19 61° 72° 3498 2339 1376 772 469
06-20 60° 66° 3539 2370 1398 785 477
06-21 63° 69° 3583 2404 1422 801 488
06-22 66° 75° 3631 2442 1450 821 503
06-23 56° 81° 3678 2479 1476 840 517
06-24 63° 83° 3729 2520 1508 863 535
06-25 74° 82° 3785 2566 1544 891 558
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
06-26 66° 78° 3835 2606 1573 913 575
06-27 60° 74° 3880 2641 1598 930 587
06-28 64° 77° 3928 2679 1627 950 602
06-29 61° 70° 3972 2713 1650 966 613
06-30 53° 71° 4012 2743 1671 978 620
07-01 57° 74° 4056 2777 1694 994 631
07-02 59° 71° 4099 2810 1718 1009 641
07-03 64° 84° 4151 2852 1750 1033 660
07-04 63° 70° 4195 2886 1774 1049 671
07-05 63° 75° 4242 2923 1801 1068 685
07-06 59° 80° 4290 2961 1828 1088 700
07-07 62° 79° 4339 3000 1857 1109 716
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
07-08 65° 80° 4389 3040 1888 1131 733
07-09 64° 83° 4441 3082 1919 1155 752
07-10 68° 76° 4490 3121 1949 1176 769
07-11 63° 85° 4542 3163 1981 1200 787
07-12 68° 85° 4597 3208 2015 1227 809
07-13 72° 81° 4651 3252 2050 1253 830
07-14 67° 88° 4707 3298 2085 1281 853
07-15 70° 84° 4762 3343 2121 1308 875
07-16 65° 80° 4812 3383 2151 1330 892
07-17 61° 74° 4858 3419 2176 1348 905
07-18 56° 77° 4903 3454 2201 1365 917
07-19 60° 80° 4951 3492 2229 1385 932
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
07-20 68° 81° 5003 3535 2262 1409 952
07-21 65° 76° 5052 3573 2291 1430 967
07-22 64° 82° 5103 3614 2322 1453 985
07-23 66° 75° 5151 3652 2350 1473 1000
07-24 63° 76° 5198 3689 2377 1492 1015
07-25 60° 80° 5246 3727 2405 1512 1029
07-26 65° 84° 5299 3770 2438 1537 1049
07-27 72° 89° 5358 3819 2476 1568 1075
07-28 71° 89° 5416 3867 2514 1598 1100
07-29 69° 87° 5472 3913 2550 1626 1123
07-30 71° 87° 5529 3960 2587 1655 1147
07-31 71° 89° 5587 4008 2625 1685 1172
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
08-01 66° 74° 5635 4046 2654 1705 1187
08-02 66° 90° 5691 4092 2690 1733 1210
08-03 63° 83° 5742 4133 2721 1756 1229
08-04 69° 82° 5796 4177 2754 1782 1249
08-05 59° 74° 5840 4211 2779 1798 1260
08-06 57° 76° 5885 4246 2803 1815 1272
08-07 58° 74° 5929 4280 2827 1831 1283
08-08 59° 69° 5971 4312 2850 1845 1292
08-09 56° 68° 6011 4342 2870 1857 1300
08-10 53° 72° 6052 4373 2890 1870 1307
08-11 52° 76° 6094 4405 2913 1884 1316
08-12 55° 79° 6139 4441 2938 1901 1329
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
08-13 57° 80° 6186 4477 2965 1920 1342
08-14 62° 78° 6234 4515 2993 1940 1357
08-15 65° 79° 6284 4555 3023 1962 1375
08-16 65° 77° 6333 4594 3052 1983 1391
08-17 68° 76° 6383 4634 3082 2005 1408
08-18 63° 81° 6433 4674 3112 2027 1424
08-19 59° 79° 6480 4711 3139 2046 1438
08-20 60° 76° 6526 4747 3165 2064 1452
08-21 59° 76° 6572 4783 3191 2082 1464
08-22 59° 72° 6616 4817 3214 2098 1475
08-23 64° 80° 6666 4857 3244 2120 1492
08-24 63° 84° 6717 4898 3276 2143 1511
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
08-25 72° 86° 6775 4946 3313 2173 1535
08-26 71° 92° 6834 4995 3353 2204 1561
08-27 68° 77° 6885 5036 3383 2227 1579
08-28 65° 77° 6934 5075 3412 2248 1595
08-29 67° 89° 6989 5120 3448 2275 1617
08-30 61° 77° 7036 5157 3475 2294 1631
08-31 59° 82° 7085 5196 3503 2315 1647
09-01 57° 72° 7128 5229 3526 2330 1657
09-02 51° 74° 7168 5259 3547 2342 1664
09-03 57° 77° 7213 5294 3572 2359 1676
09-04 58° 80° 7260 5331 3599 2378 1691
09-05 63° 75° 7308 5369 3626 2398 1705
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
09-06 53° 66° 7345 5396 3644 2407 1709
09-07 46° 69° 7380 5421 3659 2414 1712
09-08 53° 77° 7423 5454 3682 2429 1721
09-09 55° 81° 7469 5491 3708 2447 1735
09-10 63° 81° 7520 5531 3738 2470 1752
09-11 62° 84° 7571 5572 3769 2493 1770
09-12 58° 85° 7620 5611 3799 2514 1786
09-13 61° 82° 7669 5651 3828 2535 1803
09-14 68° 76° 7719 5690 3858 2557 1819
09-15 67° 87° 7774 5735 3893 2584 1841
09-16 67° 87° 7829 5780 3928 2611 1863
09-17 69° 86° 7885 5826 3963 2639 1886
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
09-18 68° 84° 7939 5870 3997 2665 1907
09-19 68° 83° 7993 5914 4031 2691 1928
09-20 59° 79° 8040 5951 4058 2710 1942
09-21 61° 81° 8089 5990 4087 2731 1958
09-22 54° 65° 8126 6017 4105 2740 1962
09-23 49° 65° 8161 6042 4120 2747 1964
09-24 49° 70° 8199 6070 4137 2757 1969
09-25 50° 72° 8238 6099 4156 2768 1975
09-26 51° 75° 8279 6130 4177 2781 1983
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
02-15 15° 37° 4 0 0 0 0
02-16 9° 18° 4 0 0 0 0
02-17 -1° 27° 4 0 0 0 0
02-18 16° 36° 8 0 0 0 0
02-19 17° 33° 11 0 0 0 0
02-20 11° 35° 12 0 0 0 0
02-21 2° 14° 12 0 0 0 0
02-22 14° 21° 12 0 0 0 0
02-23 2° 19° 12 0 0 0 0
02-24 -10° 9° 12 0 0 0 0
02-25 -1° 26° 12 0 0 0 0
02-26 4° 32° 12 0 0 0 0
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
02-27 31° 35° 23 1 0 0 0
02-28 20° 37° 30 1 0 0 0
02-29 n/a n/a n/a n/a n/a n/a n/a
03-01 25° 37° 39 1 0 0 0
03-02 19° 28° 40 1 0 0 0
03-03 22° 38° 48 1 0 0 0
03-04 25° 36° 57 1 0 0 0
03-05 19° 38° 64 1 0 0 0
03-06 30° 36° 74 2 0 0 0
03-07 28° 37° 85 3 0 0 0
03-08 31° 34° 96 3 0 0 0
03-09 29° 33° 105 3 0 0 0
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
03-10 27° 32° 112 3 0 0 0
03-11 28° 31° 120 3 0 0 0
03-12 25° 32° 126 3 0 0 0
03-13 17° 28° 127 3 0 0 0
03-14 7° 31° 127 3 0 0 0
03-15 26° 42° 139 5 0 0 0
03-16 24° 44° 151 7 0 0 0
03-17 6° 23° 151 7 0 0 0
03-18 5° 24° 151 7 0 0 0
03-19 4° 38° 151 7 0 0 0
03-20 22° 38° 159 7 0 0 0
03-21 23° 40° 168 7 0 0 0
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
03-22 27° 39° 179 8 0 0 0
03-23 23° 35° 186 8 0 0 0
03-24 17° 41° 193 8 0 0 0
03-25 29° 42° 207 11 0 0 0
03-26 21° 40° 215 11 0 0 0
03-27 20° 37° 222 11 0 0 0
03-28 10° 34° 222 11 0 0 0
03-29 7° 25° 222 11 0 0 0
03-30 11° 36° 223 11 0 0 0
03-31 33° 36° 236 14 0 0 0
04-01 25° 36° 244 14 0 0 0
04-02 23° 49° 258 18 0 0 0
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
04-03 32° 41° 273 22 0 0 0
04-04 34° 37° 286 26 0 0 0
04-05 25° 36° 295 26 0 0 0
04-06 19° 34° 299 26 0 0 0
04-07 21° 45° 310 27 0 0 0
04-08 37° 63° 338 45 8 0 0
04-09 47° 63° 372 68 21 5 0
04-10 44° 70° 407 93 36 12 2
04-11 52° 80° 451 127 60 28 13
04-12 59° 88° 502 169 92 52 32
04-13 59° 87° 553 210 123 75 50
04-14 56° 83° 601 247 150 94 64
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
04-15 39° 55° 626 263 156 94 64
04-16 31° 39° 639 266 156 94 64
04-17 31° 48° 656 273 156 94 64
04-18 30° 55° 677 284 156 94 64
04-19 37° 45° 696 293 156 94 64
04-20 37° 41° 713 300 156 94 64
04-21 33° 39° 727 304 156 94 64
04-22 31° 35° 738 305 156 94 64
04-23 30° 42° 752 309 156 94 64
04-24 32° 47° 770 316 156 94 64
04-25 31° 49° 788 324 156 94 64
04-26 31° 56° 809 336 158 94 64
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
04-27 48° 61° 842 359 170 99 64
04-28 42° 53° 868 374 176 99 64
04-29 37° 51° 890 386 178 99 64
04-30 37° 49° 911 397 179 99 64
05-01 41° 55° 937 413 185 99 64
05-02 39° 60° 964 431 193 99 64
05-03 36° 68° 994 451 203 101 64
05-04 49° 76° 1035 481 223 113 72
05-05 52° 63° 1070 507 239 121 74
05-06 54° 61° 1106 533 254 129 77
05-07 55° 70° 1146 563 274 141 84
05-08 52° 73° 1187 594 295 154 92
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
05-09 54° 66° 1225 622 313 164 97
05-10 55° 78° 1270 656 338 180 109
05-11 58° 73° 1313 690 362 196 119
05-12 62° 72° 1358 725 386 213 131
05-13 59° 68° 1399 756 408 226 139
05-14 50° 61° 1433 780 421 232 140
05-15 42° 70° 1467 804 435 238 141
05-16 52° 80° 1511 837 459 253 152
05-17 49° 67° 1547 864 475 262 155
05-18 56° 66° 1586 892 494 272 161
05-19 44° 59° 1615 912 503 274 161
05-20 42° 70° 1649 936 518 280 162
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
05-21 49° 77° 1690 967 538 293 170
05-22 55° 77° 1734 1001 562 309 181
05-23 59° 81° 1782 1039 590 329 196
05-24 55° 75° 1825 1072 614 344 206
05-25 56° 75° 1869 1105 637 359 216
05-26 51° 78° 1911 1138 660 374 226
05-27 51° 81° 1955 1172 683 390 237
05-28 54° 80° 2000 1207 708 407 249
05-29 63° 85° 2052 1249 741 431 268
05-30 63° 86° 2105 1292 773 456 288
05-31 64° 87° 2159 1335 807 481 308
06-01 69° 85° 2214 1380 842 508 331
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
06-02 69° 82° 2267 1424 876 534 351
06-03 66° 86° 2321 1468 910 560 372
06-04 67° 88° 2377 1513 945 587 395
06-05 66° 85° 2430 1557 979 613 415
06-06 69° 86° 2486 1602 1014 640 437
06-07 66° 79° 2536 1643 1044 663 455
06-08 62° 79° 2585 1681 1073 683 470
06-09 58° 83° 2633 1719 1101 703 486
06-10 61° 82° 2682 1759 1130 725 502
06-11 50° 69° 2719 1786 1148 734 506
06-12 50° 78° 2762 1818 1170 748 515
06-13 58° 85° 2811 1858 1200 770 532
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
06-14 59° 82° 2860 1896 1228 790 548
06-15 58° 72° 2903 1929 1251 805 557
06-16 49° 76° 2943 1959 1271 817 565
06-17 58° 83° 2991 1998 1299 838 580
06-18 66° 75° 3040 2036 1328 858 595
06-19 62° 89° 3093 2080 1361 884 616
06-20 69° 88° 3150 2126 1398 912 640
06-21 65° 89° 3205 2172 1433 940 662
06-22 67° 90° 3261 2218 1470 968 685
06-23 69° 89° 3318 2265 1506 997 709
06-24 69° 81° 3371 2308 1539 1022 729
06-25 63° 73° 3417 2344 1565 1040 742
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
06-26 64° 81° 3467 2384 1596 1062 759
06-27 60° 84° 3517 2424 1626 1084 776
06-28 68° 84° 3571 2468 1660 1110 797
06-29 65° 87° 3626 2512 1694 1136 818
06-30 65° 83° 3678 2554 1726 1160 838
07-01 68° 83° 3731 2598 1760 1186 858
07-02 66° 87° 3786 2643 1794 1213 880
07-03 69° 93° 3844 2691 1833 1243 905
07-04 66° 81° 3896 2733 1864 1267 924
07-05 65° 74° 3944 2770 1892 1286 939
07-06 55° 73° 3986 2803 1914 1301 948
07-07 53° 73° 4027 2834 1935 1314 956
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
07-08 55° 78° 4071 2868 1960 1330 967
07-09 54° 83° 4118 2904 1986 1348 981
07-10 67° 91° 4175 2952 2023 1378 1005
07-11 58° 74° 4219 2985 2047 1393 1016
07-12 61° 78° 4266 3022 2074 1412 1030
07-13 62° 85° 4317 3064 2106 1436 1048
07-14 63° 86° 4370 3107 2138 1461 1068
07-15 60° 80° 4418 3145 2166 1481 1083
07-16 57° 77° 4463 3180 2191 1498 1095
07-17 55° 72° 4504 3211 2213 1511 1103
07-18 56° 80° 4550 3247 2239 1529 1116
07-19 65° 86° 4604 3291 2272 1555 1137
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
07-20 63° 77° 4652 3328 2300 1574 1152
07-21 58° 81° 4699 3366 2328 1594 1166
07-22 60° 85° 4750 3406 2358 1616 1184
07-23 60° 85° 4800 3447 2389 1639 1201
07-24 63° 86° 4853 3490 2421 1664 1221
07-25 67° 92° 4910 3537 2459 1693 1245
07-26 68° 90° 4967 3584 2496 1722 1269
07-27 75° 94° 5030 3637 2538 1757 1299
07-28 70° 88° 5087 3684 2575 1786 1323
07-29 62° 80° 5136 3723 2605 1807 1339
07-30 60° 77° 5183 3760 2631 1826 1353
07-31 57° 82° 5231 3797 2659 1845 1367
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
08-01 62° 86° 5283 3839 2691 1869 1387
08-02 70° 89° 5340 3886 2728 1898 1411
08-03 70° 91° 5398 3935 2767 1929 1436
08-04 67° 87° 5454 3981 2802 1957 1459
08-05 71° 83° 5509 4025 2837 1983 1481
08-06 66° 74° 5557 4064 2865 2004 1496
08-07 64° 81° 5607 4104 2896 2026 1513
08-08 60° 82° 5656 4143 2925 2047 1529
08-09 63° 80° 5706 4182 2954 2068 1546
08-10 66° 77° 5755 4222 2984 2090 1562
08-11 64° 86° 5808 4265 3016 2115 1582
08-12 61° 80° 5857 4304 3045 2136 1598
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
08-13 63° 73° 5903 4340 3072 2154 1611
08-14 62° 68° 5946 4373 3094 2169 1621
08-15 54° 79° 5990 4407 3119 2185 1632
08-16 62° 84° 6041 4448 3150 2208 1650
08-17 62° 73° 6087 4484 3175 2226 1663
08-18 54° 78° 6131 4518 3199 2242 1674
08-19 68° 88° 6187 4563 3235 2269 1696
08-20 66° 78° 6237 4604 3265 2292 1714
08-21 64° 78° 6286 4642 3294 2312 1729
08-22 69° 96° 6346 4693 3335 2345 1757
08-23 79° 94° 6411 4748 3380 2382 1789
08-24 71° 87° 6468 4795 3417 2411 1813
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
08-25 69° 88° 6525 4841 3453 2439 1837
08-26 61° 73° 6570 4876 3478 2456 1849
08-27 54° 76° 6612 4909 3501 2471 1858
08-28 61° 84° 6663 4950 3531 2494 1876
08-29 64° 82° 6714 4990 3562 2516 1894
08-30 60° 78° 6761 5028 3589 2536 1908
08-31 58° 80° 6808 5065 3616 2555 1922
09-01 61° 88° 6861 5107 3649 2579 1942
09-02 69° 89° 6917 5154 3686 2608 1965
09-03 74° 95° 6980 5206 3728 2642 1995
09-04 74° 96° 7043 5260 3771 2678 2025
09-05 75° 89° 7103 5310 3812 2710 2052
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
09-06 60° 74° 7148 5345 3837 2727 2064
09-07 57° 64° 7186 5373 3855 2737 2069
09-08 49° 76° 7227 5404 3876 2750 2077
09-09 58° 75° 7272 5439 3900 2767 2089
09-10 59° 71° 7315 5472 3923 2782 2099
09-11 53° 72° 7356 5503 3944 2795 2107
09-12 55° 65° 7394 5531 3962 2805 2112
09-13 45° 66° 7427 5554 3976 2810 2112
09-14 50° 82° 7471 5588 3999 2826 2123
09-15 59° 71° 7514 5620 4022 2840 2133
09-16 53° 70° 7553 5650 4041 2852 2139
09-17 52° 71° 7593 5679 4061 2863 2146
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
09-18 52° 74° 7634 5711 4082 2877 2154
09-19 59° 82° 7682 5749 4111 2897 2169
09-20 57° 85° 7731 5788 4140 2918 2185
09-21 61° 82° 7781 5827 4169 2939 2201
09-22 62° 74° 7827 5863 4195 2957 2214
09-23 64° 73° 7873 5900 4221 2976 2228
09-24 62° 72° 7918 5935 4247 2993 2240
09-25 59° 64° 7958 5964 4266 3004 2247
09-26 60° 64° 7998 5995 4286 3017 2254
09-27 60° 71° 8041 6028 4310 3032 2264
09-28 62° 71° 8086 6063 4334 3049 2276
09-29 60° 75° 8131 6098 4360 3066 2288
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
09-30 68° 87° 8187 6144 4396 3094 2311

 

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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