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Crabgrass/Annual Bluegrass Preemergence Timer (GDD 32)
through Wed, Nov. 13. 2019

 
  

Janesville, WI

       

Generously Supported By:



Tabular Data

Daily GDD accumulation for various base temperature models in 2018 & 2019

2019Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
02-15 27° 0 0 0 0 0
02-16 27° 0 0 0 0 0
02-17 19° 28° 2 0 0 0 0
02-18 25° 2 0 0 0 0
02-19 -2° 26° 2 0 0 0 0
02-20 24° 33° 8 0 0 0 0
02-21 16° 31° 10 0 0 0 0
02-22 10° 34° 10 0 0 0 0
02-23 30° 35° 21 1 0 0 0
02-24 10° 38° 23 1 0 0 0
02-25 13° 23 1 0 0 0
02-26 17° 23 1 0 0 0
2019Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
02-27 11° 22° 23 1 0 0 0
02-28 21° 23 1 0 0 0
03-01 20° 28° 25 1 0 0 0
03-02 20° 26° 26 1 0 0 0
03-03 -0° 20° 26 1 0 0 0
03-04 -7° 26 1 0 0 0
03-05 18° 26 1 0 0 0
03-06 26° 26 1 0 0 0
03-07 23° 26 1 0 0 0
03-08 13° 36° 28 1 0 0 0
03-09 27° 36° 38 1 0 0 0
03-10 27° 35° 47 1 0 0 0
2019Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
03-11 23° 36° 54 1 0 0 0
03-12 17° 42° 62 1 0 0 0
03-13 37° 50° 83 12 1 0 0
03-14 37° 55° 108 26 6 0 0
03-15 33° 40° 122 31 6 0 0
03-16 28° 39° 134 33 6 0 0
03-17 25° 40° 144 33 6 0 0
03-18 25° 43° 156 35 6 0 0
03-19 26° 47° 171 40 6 0 0
03-20 32° 47° 188 47 6 0 0
03-21 35° 49° 209 58 6 0 0
03-22 33° 47° 227 66 6 0 0
2019Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
03-23 25° 52° 244 72 6 0 0
03-24 35° 46° 262 81 6 0 0
03-25 28° 43° 276 84 6 0 0
03-26 23° 47° 288 87 6 0 0
03-27 32° 56° 310 99 8 0 0
03-28 41° 59° 338 117 16 0 0
03-29 34° 54° 360 129 18 0 0
03-30 29° 42° 374 132 18 0 0
03-31 21° 39° 381 132 18 0 0
04-01 26° 50° 398 139 18 0 0
04-02 37° 46° 417 148 18 0 0
04-03 31° 57° 439 160 20 0 0
2019Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
04-04 37° 47° 459 170 20 0 0
04-05 37° 57° 484 185 25 0 0
04-06 40° 64° 514 205 35 2 0
04-07 50° 61° 548 229 49 8 1
04-08 44° 72° 584 255 65 16 4
04-09 43° 65° 616 277 76 19 4
04-10 33° 43° 631 282 76 19 4
04-11 33° 43° 648 289 76 19 4
04-12 36° 48° 668 299 77 19 4
04-13 32° 45° 684 305 77 19 4
04-14 32° 36° 696 307 77 19 4
04-15 29° 53° 715 316 77 19 4
2019Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
04-16 44° 69° 750 341 91 26 5
04-17 47° 68° 785 366 107 34 8
04-18 43° 66° 817 388 119 38 8
04-19 41° 58° 845 406 126 38 8
04-20 33° 67° 873 424 134 38 8
04-21 45° 78° 913 454 154 49 14
04-22 57° 78° 958 489 180 67 27
04-23 45° 64° 991 512 192 72 27
04-24 41° 64° 1022 533 203 74 27
04-25 40° 70° 1055 556 216 80 27
04-26 46° 60° 1086 577 227 83 27
04-27 31° 47° 1103 584 227 83 27
2019Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
04-28 28° 51° 1121 592 227 83 27
04-29 39° 51° 1144 605 231 83 27
04-30 41° 46° 1165 616 232 83 27
05-01 42° 52° 1190 631 237 83 27
05-02 43° 51° 1215 646 242 83 27
05-03 40° 56° 1241 662 248 83 27
05-04 36° 66° 1270 681 257 83 27
05-05 46° 71° 1306 707 273 92 31
05-06 52° 57° 1339 730 286 96 31
05-07 44° 54° 1366 747 292 96 31
05-08 41° 55° 1392 763 298 96 31
05-09 44° 61° 1422 783 309 99 31
2019Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
05-10 38° 58° 1448 799 315 99 31
05-11 43° 52° 1474 815 321 99 31
05-12 37° 53° 1497 828 324 99 31
05-13 38° 64° 1526 847 333 100 31
05-14 41° 70° 1559 870 346 106 31
05-15 46° 77° 1598 899 365 117 37
05-16 58° 77° 1644 935 390 134 49
05-17 48° 65° 1678 959 405 141 51
05-18 44° 71° 1714 985 421 148 54
05-19 51° 67° 1751 1012 438 157 58
05-20 42° 56° 1778 1029 445 157 58
05-21 45° 54° 1806 1047 452 157 58
2019Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
05-22 48° 78° 1847 1078 473 170 66
05-23 55° 74° 1889 1110 496 184 75
05-24 53° 70° 1928 1139 515 196 81
05-25 66° 80° 1979 1180 546 219 99
05-26 60° 77° 2025 1216 572 237 113
05-27 54° 67° 2064 1245 590 247 118
05-28 54° 68° 2103 1274 609 258 124
05-29 53° 71° 2142 1303 629 270 130
05-30 58° 75° 2187 1338 653 286 142
05-31 57° 81° 2234 1375 680 305 156
06-01 61° 78° 2281 1412 708 325 170
06-02 55° 72° 2322 1443 729 338 179
2019Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
06-03 46° 67° 2357 1468 744 345 180
06-04 54° 78° 2401 1502 768 361 191
06-05 63° 81° 2451 1542 798 383 208
06-06 59° 81° 2499 1580 826 403 224
06-07 55° 82° 2546 1617 853 422 237
06-08 56° 80° 2592 1653 879 440 251
06-09 62° 76° 2639 1690 906 459 265
06-10 57° 74° 2683 1724 930 474 275
06-11 52° 78° 2726 1757 952 489 285
06-12 54° 64° 2763 1784 969 498 289
06-13 49° 68° 2799 1810 986 507 292
06-14 49° 77° 2840 1841 1006 519 300
2019Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
06-15 58° 74° 2884 1875 1031 536 311
06-16 56° 62° 2921 1902 1048 545 316
06-17 55° 73° 2964 1935 1070 559 325
06-18 55° 79° 3008 1969 1095 576 336
06-19 58° 69° 3050 2001 1116 589 345
06-20 57° 72° 3092 2033 1139 604 354
06-21 53° 72° 3132 2063 1159 616 362
06-22 57° 78° 3178 2099 1185 633 374
06-23 66° 78° 3228 2139 1215 656 391
06-24 64° 75° 3275 2176 1242 675 406
06-25 59° 80° 3323 2214 1269 694 420
06-26 62° 84° 3374 2255 1300 717 438
2019Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
06-27 64° 88° 3428 2299 1334 743 459
06-28 65° 85° 3480 2341 1367 768 479
06-29 68° 88° 3536 2387 1403 796 502
06-30 69° 84° 3591 2432 1437 822 523
07-01 66° 86° 3645 2476 1471 848 544
07-02 71° 90° 3703 2524 1510 879 569
07-03 68° 85° 3758 2569 1545 905 591
07-04 68° 86° 3813 2614 1580 933 613
07-05 70° 87° 3870 2661 1616 961 637
07-06 69° 77° 3921 2702 1648 985 655
07-07 62° 80° 3970 2741 1676 1005 671
07-08 59° 81° 4017 2778 1704 1025 686
2019Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
07-09 59° 87° 4069 2820 1735 1048 704
07-10 71° 89° 4126 2867 1773 1078 729
07-11 66° 81° 4178 2909 1805 1102 748
07-12 58° 85° 4228 2949 1834 1123 764
07-13 69° 88° 4284 2995 1871 1152 787
07-14 65° 88° 4338 3039 1905 1178 809
07-15 70° 88° 4396 3087 1942 1207 833
07-16 68° 86° 4450 3131 1977 1234 855
07-17 71° 89° 4508 3179 2015 1264 880
07-18 70° 85° 4564 3225 2051 1292 902
07-19 74° 91° 4624 3275 2091 1324 929
07-20 69° 90° 4682 3323 2129 1353 954
2019Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
07-21 68° 81° 4734 3365 2161 1378 973
07-22 63° 75° 4781 3402 2187 1396 987
07-23 59° 78° 4827 3438 2214 1415 1001
07-24 59° 81° 4875 3476 2242 1435 1016
07-25 62° 82° 4925 3516 2272 1457 1033
07-26 65° 82° 4976 3557 2303 1480 1051
07-27 71° 85° 5032 3603 2339 1508 1074
07-28 71° 86° 5089 3650 2376 1537 1097
07-29 69° 82° 5143 3694 2409 1562 1118
07-30 63° 74° 5189 3730 2436 1581 1131
07-31 57° 76° 5234 3765 2461 1598 1143
08-01 56° 79° 5279 3800 2486 1615 1156
2019Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
08-02 55° 83° 5326 3837 2513 1634 1169
08-03 60° 85° 5377 3878 2544 1657 1187
08-04 63° 84° 5428 3919 2575 1680 1206
08-05 66° 86° 5482 3963 2609 1706 1226
08-06 65° 81° 5533 4004 2640 1729 1244
08-07 62° 84° 5584 4045 2671 1752 1262
08-08 64° 79° 5634 4085 2700 1773 1279
08-09 55° 78° 5678 4119 2725 1790 1291
08-10 59° 79° 5725 4156 2752 1809 1304
08-11 64° 77° 5773 4194 2780 1829 1319
08-12 66° 77° 5823 4234 2810 1851 1336
08-13 68° 81° 5876 4277 2843 1876 1356
2019Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
08-14 63° 72° 5921 4312 2868 1893 1369
08-15 57° 77° 5966 4347 2893 1910 1381
08-16 60° 80° 6015 4386 2921 1930 1396
08-17 59° 79° 6062 4423 2948 1949 1410
08-18 66° 78° 6112 4463 2978 1971 1427
08-19 62° 81° 6161 4502 3008 1993 1444
08-20 64° 79° 6211 4542 3038 2015 1460
08-21 65° 80° 6261 4582 3068 2037 1478
08-22 57° 75° 6305 4616 3092 2053 1489
08-23 57° 73° 6348 4649 3115 2068 1499
08-24 52° 73° 6389 4680 3136 2081 1506
08-25 54° 74° 6431 4712 3158 2094 1515
2019Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
08-26 63° 72° 6476 4747 3183 2112 1527
08-27 59° 77° 6522 4783 3209 2130 1540
08-28 56° 73° 6565 4816 3231 2144 1550
08-29 53° 82° 6610 4851 3257 2162 1563
08-30 54° 71° 6651 4882 3278 2175 1570
08-31 53° 71° 6691 4912 3297 2186 1577
09-01 58° 73° 6734 4945 3321 2202 1588
09-02 59° 81° 6782 4983 3349 2222 1603
09-03 66° 80° 6834 5025 3380 2245 1621
09-04 57° 66° 6873 5054 3400 2257 1627
09-05 49° 72° 6911 5082 3418 2267 1633
09-06 60° 70° 6955 5116 3441 2282 1643
2019Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
09-07 54° 73° 6996 5147 3463 2296 1652
09-08 57° 64° 7035 5176 3482 2307 1657
09-09 57° 71° 7077 5208 3504 2321 1666
09-10 67° 81° 7129 5250 3535 2344 1685
09-11 67° 83° 7182 5293 3568 2369 1705
09-12 61° 74° 7227 5328 3594 2387 1717
09-13 59° 69° 7269 5360 3616 2401 1727
09-14 52° 77° 7312 5393 3639 2416 1736
09-15 65° 76° 7361 5432 3668 2437 1752
09-16 64° 80° 7411 5472 3697 2458 1769
09-17 61° 79° 7459 5510 3725 2478 1784
09-18 61° 79° 7507 5548 3754 2499 1799
2019Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
09-19 65° 71° 7553 5584 3780 2517 1812
09-20 61° 82° 7602 5623 3809 2538 1829
09-21 70° 73° 7652 5663 3839 2560 1845
09-22 66° 69° 7697 5698 3864 2577 1857
09-23 54° 72° 7738 5729 3885 2590 1866
09-24 54° 79° 7783 5764 3910 2606 1877
09-25 63° 75° 7829 5800 3936 2625 1891
09-26 51° 70° 7868 5829 3955 2635 1896
09-27 58° 66° 7908 5859 3975 2648 1903
09-28 53° 63° 7944 5885 3991 2656 1906
09-29 53° 62° 7980 5911 4007 2663 1909
09-30 62° 84° 8031 5952 4038 2687 1927
2019Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
02-15 36° 41° 17 7 0 0 0
02-16 16° 36° 21 7 0 0 0
02-17 14° 30° 21 7 0 0 0
02-18 16° 37° 26 7 0 0 0
02-19 35° 40° 41 12 0 0 0
02-20 30° 42° 55 17 0 0 0
02-21 22° 29° 59 17 0 0 0
02-22 24° 35° 66 17 0 0 0
02-23 30° 38° 78 18 0 0 0
02-24 26° 38° 88 18 0 0 0
02-25 29° 40° 100 21 0 0 0
02-26 27° 49° 116 27 0 0 0
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
02-27 36° 57° 141 41 4 0 0
02-28 36° 52° 162 53 6 0 0
03-01 32° 43° 178 59 6 0 0
03-02 25° 44° 191 61 6 0 0
03-03 30° 45° 207 67 6 0 0
03-04 28° 46° 222 72 6 0 0
03-05 30° 35° 233 73 6 0 0
03-06 29° 34° 242 73 6 0 0
03-07 20° 29° 244 73 6 0 0
03-08 18° 32° 247 73 6 0 0
03-09 18° 36° 252 73 6 0 0
03-10 20° 41° 261 73 6 0 0
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
03-11 29° 43° 274 77 6 0 0
03-12 30° 43° 289 81 6 0 0
03-13 24° 32° 295 81 6 0 0
03-14 21° 49° 307 84 6 0 0
03-15 26° 46° 321 88 6 0 0
03-16 21° 38° 329 88 6 0 0
03-17 27° 50° 346 94 6 0 0
03-18 26° 57° 365 104 6 0 0
03-19 30° 49° 383 111 6 0 0
03-20 27° 37° 392 111 6 0 0
03-21 24° 41° 403 112 6 0 0
03-22 23° 48° 416 115 6 0 0
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
03-23 24° 45° 429 118 6 0 0
03-24 29° 37° 440 119 6 0 0
03-25 24° 42° 451 120 6 0 0
03-26 26° 48° 466 125 6 0 0
03-27 37° 46° 485 134 6 0 0
03-28 30° 53° 505 144 6 0 0
03-29 39° 52° 528 157 9 0 0
03-30 27° 47° 543 162 9 0 0
03-31 29° 49° 560 169 9 0 0
04-01 20° 33° 565 169 9 0 0
04-02 20° 39° 572 169 9 0 0
04-03 31° 35° 583 170 9 0 0
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
04-04 22° 33° 589 170 9 0 0
04-05 19° 41° 597 170 9 0 0
04-06 27° 33° 605 170 9 0 0
04-07 16° 36° 609 170 9 0 0
04-08 18° 38° 615 170 9 0 0
04-09 24° 37° 623 170 9 0 0
04-10 27° 42° 636 173 9 0 0
04-11 36° 62° 663 190 16 0 0
04-12 43° 61° 693 210 26 2 0
04-13 37° 43° 711 218 26 2 0
04-14 30° 37° 723 220 26 2 0
04-15 25° 32° 729 220 26 2 0
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
04-16 25° 33° 736 220 26 2 0
04-17 26° 37° 745 220 26 2 0
04-18 26° 33° 753 220 26 2 0
04-19 28° 50° 771 227 26 2 0
04-20 29° 60° 793 240 29 2 0
04-21 38° 57° 819 255 35 2 0
04-22 38° 63° 847 274 43 3 0
04-23 37° 70° 879 295 55 6 0
04-24 42° 72° 914 320 70 13 2
04-25 40° 60° 942 338 78 13 2
04-26 30° 67° 969 355 85 13 2
04-27 37° 62° 997 373 92 13 2
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
04-28 37° 54° 1020 386 96 13 2
04-29 24° 63° 1042 398 98 13 2
04-30 41° 80° 1080 427 116 24 8
05-01 55° 80° 1126 462 142 41 20
05-02 62° 81° 1176 502 171 63 37
05-03 58° 67° 1217 533 192 76 45
05-04 55° 74° 1259 566 215 91 55
05-05 50° 81° 1303 599 239 106 65
05-06 57° 72° 1345 632 261 121 75
05-07 47° 77° 1385 662 281 133 82
05-08 55° 81° 1431 698 307 151 95
05-09 55° 76° 1475 732 331 167 106
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
05-10 55° 69° 1515 762 351 179 113
05-11 38° 56° 1540 777 356 179 113
05-12 41° 53° 1565 792 361 179 113
05-13 45° 59° 1595 812 371 181 113
05-14 54° 75° 1638 844 393 195 122
05-15 57° 76° 1682 878 418 211 133
05-16 47° 82° 1724 911 440 226 143
05-17 56° 78° 1769 946 465 243 154
05-18 52° 77° 1812 978 487 257 164
05-19 56° 72° 1854 1010 509 271 173
05-20 46° 63° 1886 1033 522 276 173
05-21 48° 61° 1919 1055 535 280 173
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
05-22 52° 68° 1956 1083 552 290 177
05-23 54° 79° 2001 1118 577 306 189
05-24 57° 85° 2051 1157 606 328 206
05-25 63° 86° 2103 1199 639 352 225
05-26 62° 89° 2156 1243 672 378 245
05-27 64° 94° 2214 1290 709 407 270
05-28 67° 91° 2271 1337 747 436 294
05-29 67° 92° 2328 1385 784 466 318
05-30 67° 79° 2379 1426 815 489 336
05-31 70° 86° 2436 1472 851 517 360
06-01 58° 81° 2483 1509 879 536 374
06-02 51° 70° 2521 1538 897 547 379
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
06-03 58° 70° 2563 1569 919 560 388
06-04 50° 79° 2606 1602 942 575 398
06-05 58° 74° 2650 1636 965 591 409
06-06 49° 75° 2690 1666 986 603 416
06-07 59° 83° 2739 1705 1015 624 432
06-08 59° 72° 2783 1739 1038 640 443
06-09 59° 79° 2830 1776 1066 659 457
06-10 62° 64° 2871 1808 1087 673 465
06-11 60° 71° 2915 1841 1110 688 476
06-12 64° 78° 2963 1880 1139 709 491
06-13 66° 79° 3014 1920 1169 731 509
06-14 58° 75° 3058 1955 1194 748 520
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
06-15 63° 84° 3110 1996 1225 771 539
06-16 67° 89° 3166 2042 1261 799 562
06-17 73° 91° 3226 2092 1301 831 589
06-18 71° 90° 3284 2140 1340 861 614
06-19 62° 71° 3328 2175 1364 878 625
06-20 62° 71° 3373 2209 1389 894 637
06-21 61° 66° 3414 2241 1410 908 645
06-22 58° 70° 3456 2273 1432 922 654
06-23 58° 79° 3503 2309 1459 940 668
06-24 61° 83° 3553 2349 1489 962 685
06-25 57° 76° 3598 2384 1514 979 697
06-26 65° 73° 3645 2421 1541 998 711
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
06-27 65° 78° 3695 2461 1570 1020 728
06-28 63° 84° 3746 2503 1602 1044 746
06-29 69° 91° 3804 2551 1640 1073 771
06-30 72° 91° 3863 2600 1679 1105 797
07-01 69° 87° 3920 2646 1716 1133 821
07-02 62° 83° 3970 2687 1746 1155 838
07-03 60° 86° 4021 2728 1777 1179 856
07-04 71° 88° 4079 2775 1815 1208 881
07-05 69° 85° 4134 2821 1850 1236 903
07-06 61° 76° 4180 2857 1876 1254 916
07-07 52° 79° 4224 2890 1900 1269 927
07-08 56° 82° 4270 2927 1926 1288 940
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
07-09 61° 87° 4323 2969 1958 1312 960
07-10 70° 85° 4378 3015 1994 1340 982
07-11 62° 85° 4429 3056 2025 1363 1000
07-12 63° 85° 4481 3097 2057 1386 1019
07-13 68° 89° 4537 3144 2093 1415 1042
07-14 69° 82° 4591 3188 2127 1441 1063
07-15 69° 85° 4646 3232 2162 1467 1085
07-16 70° 83° 4700 3277 2196 1494 1106
07-17 63° 79° 4749 3316 2225 1515 1122
07-18 58° 79° 4796 3352 2252 1533 1136
07-19 58° 78° 4842 3388 2278 1551 1149
07-20 67° 72° 4890 3426 2305 1571 1164
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
07-21 68° 77° 4940 3467 2336 1593 1181
07-22 66° 77° 4989 3506 2365 1615 1197
07-23 61° 81° 5039 3545 2394 1636 1214
07-24 64° 83° 5090 3587 2426 1660 1232
07-25 61° 83° 5140 3627 2456 1681 1249
07-26 64° 75° 5188 3664 2483 1701 1264
07-27 57° 74° 5231 3698 2507 1717 1274
07-28 54° 77° 5275 3731 2531 1732 1285
07-29 56° 79° 5320 3767 2556 1750 1297
07-30 58° 79° 5367 3803 2583 1768 1311
07-31 56° 78° 5412 3839 2608 1785 1323
08-01 58° 83° 5461 3877 2637 1806 1339
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
08-02 64° 76° 5509 3915 2665 1826 1354
08-03 61° 81° 5558 3955 2694 1847 1370
08-04 68° 88° 5615 4001 2730 1876 1394
08-05 71° 87° 5671 4048 2767 1905 1417
08-06 66° 79° 5722 4088 2798 1927 1435
08-07 65° 75° 5770 4127 2826 1948 1450
08-08 65° 80° 5821 4167 2857 1970 1468
08-09 68° 86° 5876 4212 2892 1997 1490
08-10 62° 82° 5926 4252 2922 2019 1507
08-11 63° 84° 5977 4294 2953 2043 1525
08-12 64° 85° 6030 4336 2986 2067 1545
08-13 62° 85° 6082 4378 3018 2091 1564
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
08-14 65° 85° 6135 4421 3050 2116 1584
08-15 66° 82° 6187 4463 3083 2140 1603
08-16 68° 81° 6240 4506 3115 2165 1623
08-17 67° 79° 6291 4547 3147 2188 1641
08-18 64° 79° 6341 4587 3176 2210 1658
08-19 65° 81° 6392 4628 3207 2233 1676
08-20 68° 76° 6442 4668 3238 2255 1693
08-21 63° 75° 6489 4705 3265 2274 1707
08-22 54° 75° 6532 4738 3287 2289 1717
08-23 55° 77° 6575 4772 3311 2305 1727
08-24 63° 66° 6617 4804 3333 2319 1736
08-25 64° 83° 6669 4845 3365 2342 1755
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
08-26 65° 89° 6724 4890 3400 2369 1777
08-27 75° 86° 6782 4939 3438 2400 1802
08-28 69° 84° 6837 4984 3473 2427 1824
08-29 60° 70° 6881 5017 3496 2442 1835
08-30 55° 73° 6922 5049 3518 2456 1843
08-31 56° 82° 6969 5086 3545 2475 1857
09-01 68° 80° 7021 5128 3577 2499 1876
09-02 67° 84° 7075 5171 3611 2524 1897
09-03 67° 74° 7124 5210 3640 2545 1913
09-04 70° 87° 7180 5257 3676 2574 1936
09-05 69° 80° 7232 5299 3708 2598 1955
09-06 59° 72° 7276 5332 3731 2613 1966
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
09-07 54° 70° 7316 5362 3751 2625 1973
09-08 57° 69° 7357 5393 3772 2638 1981
09-09 52° 69° 7395 5421 3791 2648 1986
09-10 50° 72° 7434 5450 3810 2659 1992
09-11 54° 79° 7478 5484 3834 2675 2003
09-12 56° 82° 7525 5521 3861 2694 2017
09-13 55° 79° 7570 5556 3886 2711 2029
09-14 57° 84° 7618 5595 3914 2732 2044
09-15 60° 86° 7669 5635 3945 2754 2062
09-16 60° 86° 7720 5676 3976 2777 2080
09-17 64° 88° 7774 5721 4010 2803 2101
09-18 64° 72° 7820 5756 4036 2821 2114
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
09-19 58° 70° 7862 5788 4058 2835 2123
09-20 62° 87° 7914 5831 4090 2860 2142
09-21 53° 82° 7960 5866 4116 2877 2155
09-22 44° 66° 7993 5889 4129 2882 2155
09-23 46° 72° 8030 5916 4146 2891 2159
09-24 53° 76° 8072 5949 4168 2906 2169
09-25 59° 78° 8119 5985 4194 2924 2182
09-26 45° 63° 8151 6007 4207 2928 2182
09-27 47° 67° 8186 6032 4222 2935 2184
09-28 44° 59° 8216 6052 4231 2937 2184
09-29 35° 53° 8238 6064 4234 2937 2184
09-30 44° 56° 8266 6083 4242 2937 2184
2018Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55

 

Latest Updates

March 9th, 2018Note Regarding 2018 Alerts

We had an issue with the emailed alerts that should be resolved now, and apologize for any inconvenience. You may receive outdated alerts tomorrow (Saturday, March 10, 2018), so please check the details before taking any action. Thank you.


 

February 17th, 2018Welcome to a New GDD Season!

GDDTracker is ready for 2018 with GDD tracking that began on February 15. New this year will be the Smith-Kerns Dollar Spot Prediction Model which will be launching soon. Check back soon for additional details!
 

March 29th, 2017Timing crabgrass pre-emergence applications

Please note that Dr. Frank has written another helpful article available from the MSU Extension web site.

http://msue.anr.msu.edu/news/timing_crabgrass_pre_emergence_applications


 

March 9th, 2017Controlling Annual Bluegrass Seedheads: Spray Now or Wait?

Dr. Kevin Frank has posted a useful article at the MSU Extension website. Please note it is written specifically for Michigan but may apply to other midwest regions.

"Growing degree-days have accumulated quickly, but it may not yet be time to apply plant growth regulators to control annual bluegrass seedheads on golf courses.

Read more: http://msue.anr.msu.edu/news/controlling_annual_bluegrass_seedheads_spray_now_or_wait


 

February 26th, 2017Early Spring in Michigan: Boom or Bust?

Dr. Kevin Frank has posted a helpful article on the MSU Extension website. Much of the midwest is experiencing the same (very) early warm-up, so non-Michiganders may find it help as well!

http://msue.anr.msu.edu/news/is_an_early_spring_a_boom_or_bust_for_golf_course_turf
 

February 16th, 2017Missing weather data

All air temperature data has been accounted for now.