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Crabgrass/Annual Bluegrass Preemergence Timer (GDD 32)
through Thu, Jun. 4. 2020

 

GDD Total: 1634 (Base 32) through Thu, Jun. 4, 2020

  

Janesville, WI

       

Forecast »

Done

801

Late

500

Optimum

250

Early

171

Under

0

 

Generously Supported By:



Tabular Data

Daily GDD accumulation for various base temperature models in 2020 & 2019

2020Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
02-15 32° 0 0 0 0 0
02-16 19° 33° 4 0 0 0 0
02-17 25° 33° 11 0 0 0 0
02-18 19° 34° 16 0 0 0 0
02-19 21° 16 0 0 0 0
02-20 -2° 15° 16 0 0 0 0
02-21 33° 16 0 0 0 0
02-22 25° 43° 28 2 0 0 0
02-23 33° 48° 47 11 0 0 0
02-24 30° 40° 60 14 0 0 0
02-25 27° 35° 69 14 0 0 0
02-26 22° 27° 71 14 0 0 0
2020Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
02-27 21° 28° 74 14 0 0 0
02-28 15° 27° 74 14 0 0 0
02-29 13° 35° 76 14 0 0 0
03-01 32° 55° 97 25 2 0 0
03-02 30° 40° 110 28 2 0 0
03-03 30° 43° 124 32 2 0 0
03-04 32° 43° 140 38 2 0 0
03-05 32° 45° 157 45 2 0 0
03-06 26° 38° 167 45 2 0 0
03-07 25° 50° 182 50 2 0 0
03-08 37° 63° 210 68 9 0 0
03-09 46° 52° 237 85 16 0 0
2020Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
03-10 33° 49° 256 94 16 0 0
03-11 36° 45° 274 102 16 0 0
03-12 34° 53° 295 113 18 0 0
03-13 31° 46° 312 120 18 0 0
03-14 31° 36° 323 121 18 0 0
03-15 29° 42° 337 125 18 0 0
03-16 26° 40° 348 126 18 0 0
03-17 30° 45° 363 131 18 0 0
03-18 35° 42° 379 137 18 0 0
03-19 40° 51° 403 151 21 0 0
03-20 32° 42° 418 156 21 0 0
03-21 22° 36° 425 156 21 0 0
2020Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
03-22 25° 35° 433 156 21 0 0
03-23 28° 42° 446 158 21 0 0
03-24 36° 49° 466 169 21 0 0
03-25 31° 54° 487 179 22 0 0
03-26 39° 49° 509 191 24 0 0
03-27 34° 55° 531 204 26 0 0
03-28 42° 56° 558 221 33 0 0
03-29 39° 59° 586 239 41 0 0
03-30 37° 54° 609 252 45 0 0
03-31 33° 43° 625 258 45 0 0
04-01 34° 54° 647 270 47 0 0
04-02 34° 61° 673 286 52 0 0
2020Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
04-03 44° 66° 706 309 65 5 0
04-04 31° 52° 726 318 65 5 0
04-05 33° 56° 748 331 67 5 0
04-06 32° 59° 771 344 70 5 0
04-07 50° 77° 812 375 92 18 8
04-08 46° 59° 843 395 102 21 8
04-09 34° 46° 861 403 102 21 8
04-10 30° 49° 878 411 102 21 8
04-11 39° 59° 905 428 109 21 8
04-12 42° 61° 934 447 118 22 8
04-13 32° 40° 948 451 118 22 8
04-14 26° 35° 957 451 118 22 8
2020Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
04-15 25° 36° 966 451 118 22 8
04-16 24° 44° 978 453 118 22 8
04-17 33° 45° 995 460 118 22 8
04-18 32° 59° 1018 474 121 22 8
04-19 42° 57° 1046 491 129 22 8
04-20 32° 62° 1070 506 134 22 8
04-21 32° 49° 1089 514 134 22 8
04-22 38° 58° 1115 530 140 22 8
04-23 40° 54° 1140 546 145 22 8
04-24 40° 52° 1164 559 149 22 8
04-25 40° 53° 1189 574 153 22 8
04-26 40° 65° 1219 595 164 25 8
2020Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
04-27 42° 61° 1249 614 174 26 8
04-28 43° 68° 1282 638 187 32 9
04-29 46° 58° 1312 658 197 34 9
04-30 45° 64° 1345 680 209 38 9
05-01 36° 65° 1373 699 218 39 9
05-02 55° 73° 1416 731 240 53 18
05-03 51° 73° 1456 761 260 65 25
05-04 36° 53° 1479 774 263 65 25
05-05 40° 50° 1502 787 266 65 25
05-06 36° 64° 1530 805 274 65 25
05-07 44° 64° 1562 827 286 69 25
05-08 34° 48° 1580 835 286 69 25
2020Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
05-09 26° 60° 1601 846 287 69 25
05-10 37° 56° 1626 861 292 69 25
05-11 39° 51° 1648 874 294 69 25
05-12 34° 61° 1674 889 300 69 25
05-13 35° 67° 1703 908 309 70 25
05-14 52° 67° 1741 936 327 80 30
05-15 58° 73° 1785 970 350 96 41
05-16 48° 69° 1821 996 367 104 44
05-17 51° 58° 1853 1019 379 108 44
05-18 50° 57° 1885 1040 391 112 44
05-19 51° 59° 1918 1063 403 117 44
05-20 52° 67° 1955 1090 421 126 49
2020Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
05-21 54° 67° 1993 1119 439 137 54
05-22 56° 69° 2034 1149 460 149 62
05-23 54° 76° 2077 1182 483 164 72
05-24 60° 81° 2126 1221 512 185 87
05-25 66° 81° 2178 1263 544 209 106
05-26 65° 85° 2230 1306 576 233 126
05-27 69° 84° 2285 1350 611 260 148
05-28 63° 71° 2330 1385 636 277 160
05-29 56° 65° 2369 1414 655 288 165
05-30 50° 69° 2407 1442 672 298 170
05-31 44° 71° 2442 1467 688 305 173
06-01 54° 77° 2485 1501 711 321 183
2020Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
06-02 68° 90° 2542 1548 748 349 207
06-03 67° 83° 2595 1590 781 374 227
06-04 65° 87° 2649 1634 815 400 248
06-05 66° 84° 2702 1677 848 425 268
06-06 59° 77° 2748 1713 874 443 280
06-07 53° 76° 2790 1746 896 457 290
06-08 59° 85° 2840 1785 926 479 307
06-09 66° 85° 2894 1829 960 505 327
06-10 64° 75° 2941 1866 987 524 342
06-11 59° 75° 2986 1901 1012 541 354
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
02-29 n/a n/a n/a n/a n/a n/a n/a
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
2019Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
03-10 27° 35° 47 1 0 0 0
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
2019Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
03-22 33° 47° 227 66 6 0 0
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
2019Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
04-03 31° 57° 439 160 20 0 0
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
2019Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
04-15 29° 53° 715 316 77 19 4
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
2019Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
04-27 31° 47° 1103 584 227 83 27
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
2019Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
05-09 44° 61° 1422 783 309 99 31
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
2019Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
05-21 45° 54° 1806 1047 452 157 58
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
2019Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
06-02 55° 72° 2322 1443 729 338 179
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
2019Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
06-14 49° 77° 2840 1841 1006 519 300
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
2019Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
06-26 62° 84° 3374 2255 1300 717 438
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
2019Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
07-08 59° 81° 4017 2778 1704 1025 686
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
2019Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
07-20 69° 90° 4682 3323 2129 1353 954
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
2019Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
08-01 56° 79° 5279 3800 2486 1615 1156
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
2019Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
08-13 68° 81° 5876 4277 2843 1876 1356
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
2019Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
08-25 54° 74° 6431 4712 3158 2094 1515
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
2019Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
09-06 60° 70° 6955 5116 3441 2282 1643
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
2019Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
09-18 61° 79° 7507 5548 3754 2499 1799
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
2019Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
09-30 62° 84° 8031 5952 4038 2687 1927

 

Latest Updates

May 19th, 2020Weather Data Interruption

We are currently experiencing problems with tracking growing degree days at GDDTracker.net. The weather feed we rely on from NOAA has been discontinued and is being migrated to a new server. We hope to be able to resume counting growing degree days in the next week or so. Thanks for your patience and understanding.
 

February 17th, 2020Welcome to the 2020 GDD Tracking Season

February 15th marked the start of our 3rd decade counting growing degree days here at GDDtracker.net. What started out as a couple models to schedule plant growth regulator applications to suppress annual bluegrass seedheads has expanded to include models for crabgrass germination, early season DMI fungicide applications, and most recently the Smith-Kerns dollar spot prediction model. We've been making some changes behind the scenes with the servers that continually process the immense amount of data collected daily to ensure system stability in the future. Thanks for your support as we look forward to the 2020 growing season.