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.

“Flashback” to 2023

Please note you are viewing last year's map and info. Click here to return to 2024

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MSU Proxy/Primo Seedhead Timer (GDD 32)
through Sat, Nov. 4. 2023

 
  

Lauderdale, 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 16° 29° 0 0 0 0 0
02-16 8° 18° 0 0 0 0 0
02-17 8° 27° 0 0 0 0 0
02-18 22° 35° 7 0 0 0 0
02-19 20° 38° 14 0 0 0 0
02-20 29° 45° 29 5 0 0 0
02-21 22° 47° 41 8 0 0 0
02-22 28° 51° 59 15 0 0 0
02-23 22° 35° 65 15 0 0 0
02-24 17° 43° 73 15 0 0 0
02-25 32° 48° 91 23 0 0 0
02-26 28° 62° 114 36 3 0 0
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
02-27 15° 51° 125 37 3 0 0
02-28 5° 19° 125 37 3 0 0
02-29 11° 49° 133 37 3 0 0
03-01 35° 57° 158 51 7 0 0
03-02 33° 61° 182 66 12 0 0
03-03 41° 65° 213 87 23 3 0
03-04 30° 40° 226 90 23 3 0
03-05 23° 47° 239 93 23 3 0
03-06 27° 52° 257 101 23 3 0
03-07 33° 45° 274 108 23 3 0
03-08 25° 38° 283 108 23 3 0
03-09 20° 39° 291 108 23 3 0
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
03-10 18° 49° 303 110 23 3 0
03-11 33° 65° 330 127 30 3 0
03-12 42° 66° 362 149 42 7 0
03-13 37° 64° 391 167 50 7 0
03-14 43° 58° 419 186 59 8 0
03-15 30° 50° 437 193 59 8 0
03-16 33° 49° 456 202 59 8 0
03-17 24° 32° 462 202 59 8 0
03-18 20° 37° 468 202 59 8 0
03-19 33° 50° 488 212 59 8 0
03-20 17° 32° 491 212 59 8 0
03-21 21° 31° 495 212 59 8 0
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
03-22 24° 32° 501 212 59 8 0
03-23 15° 32° 502 212 59 8 0
03-24 27° 31° 509 212 59 8 0
03-25 32° 36° 521 214 59 8 0
03-26 21° 34° 527 214 59 8 0
03-27 17° 29° 528 214 59 8 0
03-28 19° 36° 533 214 59 8 0
03-29 23° 43° 544 215 59 8 0
03-30 33° 44° 561 222 59 8 0
03-31 32° 45° 577 228 59 8 0
04-01 31° 44° 593 234 59 8 0
04-02 33° 41° 608 239 59 8 0
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
04-03 34° 49° 627 248 59 8 0
04-04 33° 51° 647 258 59 8 0
04-05 30° 56° 668 269 60 8 0
04-06 34° 58° 692 283 64 8 0
04-07 39° 47° 713 294 65 8 0
04-08 42° 48° 736 307 68 8 0
04-09 41° 60° 764 326 76 8 0
04-10 41° 69° 797 349 89 13 0
04-11 44° 59° 827 368 99 14 0
04-12 43° 59° 856 387 108 15 0
04-13 37° 83° 893 415 125 25 5
04-14 46° 70° 929 440 141 33 8
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
04-15 46° 60° 960 462 152 36 8
04-16 47° 54° 989 480 161 37 8
04-17 43° 51° 1014 495 166 37 8
04-18 44° 51° 1040 511 172 37 8
04-19 33° 40° 1054 515 172 37 8
04-20 31° 46° 1071 522 172 37 8
04-21 32° 52° 1091 532 172 37 8
04-22 39° 68° 1123 554 184 40 8
04-23 43° 59° 1152 573 193 41 8
04-24 32° 57° 1174 586 195 41 8
04-25 43° 67° 1207 609 208 46 8
04-26 46° 53° 1235 627 216 46 8
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
04-27 49° 57° 1266 647 227 49 8
04-28 45° 52° 1292 664 233 49 8
04-29 43° 50° 1317 678 237 49 8
04-30 42° 68° 1350 701 251 55 8
05-01 50° 63° 1384 726 265 61 10
05-02 48° 56° 1414 746 275 63 10
05-03 44° 70° 1449 771 290 70 12
05-04 47° 60° 1481 792 301 73 12
05-05 40° 69° 1513 815 314 78 12
05-06 47° 72° 1551 842 332 88 16
05-07 56° 70° 1592 873 353 101 24
05-08 46° 75° 1631 902 371 111 30
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
05-09 48° 65° 1665 926 386 118 31
05-10 41° 72° 1699 951 400 124 33
05-11 45° 74° 1737 978 418 134 37
05-12 59° 85° 1787 1018 448 155 54
05-13 50° 70° 1825 1046 466 165 59
05-14 47° 71° 1862 1073 483 174 63
05-15 47° 72° 1899 1101 500 184 68
05-16 57° 69° 1940 1131 521 197 75
05-17 54° 84° 1987 1168 548 216 89
05-18 64° 81° 2037 1208 578 238 106
05-19 49° 70° 2075 1236 596 248 111
05-20 57° 75° 2119 1270 620 264 122
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
05-21 62° 71° 2163 1305 644 280 133
05-22 54° 68° 2202 1334 663 291 139
05-23 55° 76° 2246 1367 687 306 150
05-24 51° 72° 2285 1396 706 318 156
05-25 47° 73° 2323 1424 724 328 161
05-26 57° 68° 2364 1455 745 341 169
05-27 49° 63° 2398 1479 759 347 170
05-28 53° 63° 2434 1505 775 355 173
05-29 46° 70° 2470 1531 791 363 176
05-30 54° 76° 2514 1565 814 378 187
05-31 61° 67° 2556 1597 836 392 196
06-01 60° 75° 2601 1633 862 410 209
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
06-02 55° 76° 2645 1666 886 426 219
06-03 63° 81° 2695 1706 916 448 236
06-04 63° 84° 2747 1748 948 472 255
06-05 56° 78° 2792 1783 973 489 267
06-06 60° 69° 2835 1816 996 503 277
06-07 57° 77° 2880 1851 1020 520 289
06-08 58° 75° 2924 1885 1045 537 300
06-09 56° 70° 2965 1916 1066 550 308
06-10 50° 74° 3005 1946 1086 562 315
06-11 57° 81° 3052 1983 1113 581 329
06-12 58° 79° 3099 2020 1140 599 343
06-13 63° 83° 3150 2061 1171 622 361
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
06-14 58° 79° 3196 2097 1197 641 374
06-15 62° 69° 3240 2131 1221 656 385
06-16 63° 86° 3292 2173 1253 681 404
06-17 55° 77° 3336 2207 1277 697 415
06-18 65° 83° 3388 2249 1309 721 434
06-19 62° 72° 3433 2284 1334 738 446
06-20 58° 66° 3473 2314 1354 750 453
06-21 64° 70° 3518 2349 1379 766 465
06-22 62° 73° 3563 2385 1404 784 477
06-23 53° 82° 3609 2420 1429 801 490
06-24 62° 83° 3659 2460 1460 824 507
06-25 71° 84° 3715 2506 1496 851 530
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
06-26 64° 78° 3764 2545 1525 872 546
06-27 57° 74° 3807 2579 1548 888 557
06-28 64° 76° 3855 2617 1576 908 571
06-29 61° 70° 3899 2650 1600 923 582
06-30 50° 72° 3938 2679 1619 935 588
07-01 56° 75° 3982 2713 1643 950 599
07-02 59° 70° 4024 2745 1665 965 608
07-03 64° 85° 4076 2788 1697 989 627
07-04 63° 69° 4120 2821 1721 1005 638
07-05 62° 75° 4167 2858 1748 1023 652
07-06 58° 80° 4214 2895 1775 1043 666
07-07 63° 79° 4263 2935 1804 1064 683
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
07-08 65° 79° 4313 2975 1834 1086 699
07-09 63° 83° 4364 3016 1865 1109 717
07-10 65° 81° 4415 3056 1896 1132 735
07-11 62° 85° 4467 3098 1928 1155 754
07-12 67° 86° 4522 3143 1962 1182 776
07-13 71° 80° 4575 3186 1996 1208 796
07-14 67° 87° 4630 3231 2031 1235 818
07-15 69° 83° 4684 3275 2065 1261 839
07-16 63° 79° 4733 3314 2094 1282 855
07-17 59° 74° 4778 3349 2118 1298 867
07-18 57° 78° 4823 3384 2143 1315 879
07-19 60° 80° 4870 3422 2171 1335 893
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
07-20 66° 81° 4922 3463 2203 1359 912
07-21 66° 78° 4972 3503 2233 1381 929
07-22 65° 83° 5025 3546 2265 1405 949
07-23 64° 74° 5071 3583 2292 1424 962
07-24 61° 75° 5117 3618 2318 1442 975
07-25 56° 81° 5164 3655 2344 1460 989
07-26 65° 84° 5216 3697 2377 1485 1008
07-27 72° 90° 5275 3746 2416 1516 1034
07-28 71° 88° 5333 3794 2454 1546 1059
07-29 69° 85° 5388 3839 2489 1573 1081
07-30 69° 87° 5444 3885 2525 1601 1104
07-31 71° 89° 5503 3934 2563 1631 1130
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
08-01 66° 75° 5551 3972 2592 1651 1145
08-02 65° 90° 5606 4017 2627 1679 1167
08-03 61° 84° 5657 4058 2657 1701 1185
08-04 67° 82° 5709 4100 2690 1726 1204
08-05 59° 72° 5753 4134 2713 1741 1215
08-06 55° 76° 5796 4167 2737 1757 1225
08-07 56° 75° 5840 4201 2761 1773 1236
08-08 60° 69° 5882 4233 2783 1787 1245
08-09 56° 68° 5923 4264 2803 1799 1253
08-10 53° 72° 5963 4294 2824 1812 1260
08-11 52° 78° 6006 4327 2847 1827 1270
08-12 53° 81° 6051 4362 2872 1844 1282
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
08-13 57° 82° 6099 4400 2900 1863 1297
08-14 62° 81° 6148 4439 2929 1885 1313
08-15 64° 78° 6197 4478 2958 1905 1329
08-16 65° 77° 6246 4517 2987 1927 1345
08-17 67° 75° 6295 4556 3016 1948 1361
08-18 61° 80° 6344 4595 3045 1968 1377
08-19 57° 80° 6390 4631 3071 1987 1390
08-20 61° 74° 6436 4667 3097 2004 1403
08-21 58° 77° 6482 4703 3122 2022 1416
08-22 59° 71° 6525 4736 3146 2037 1426
08-23 64° 79° 6574 4775 3175 2059 1442
08-24 64° 85° 6626 4818 3207 2083 1462
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
08-25 73° 86° 6684 4865 3245 2113 1486
08-26 70° 92° 6743 4915 3284 2144 1512
08-27 68° 75° 6793 4954 3314 2166 1529
08-28 63° 72° 6838 4989 3339 2183 1541
08-29 65° 86° 6892 5033 3372 2208 1562
08-30 60° 78° 6938 5070 3399 2227 1575
08-31 58° 84° 6987 5109 3428 2248 1591
09-01 55° 72° 7029 5140 3450 2262 1600
09-02 52° 74° 7070 5171 3471 2274 1608
09-03 57° 77° 7115 5206 3496 2292 1620
09-04 58° 81° 7162 5244 3523 2311 1634
09-05 63° 74° 7209 5280 3550 2329 1648
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
09-06 52° 66° 7246 5307 3567 2338 1652
09-07 45° 68° 7280 5331 3581 2345 1653
09-08 52° 77° 7323 5364 3604 2360 1663
09-09 56° 81° 7370 5401 3631 2378 1677
09-10 62° 80° 7419 5440 3660 2400 1693
09-11 62° 84° 7470 5481 3691 2422 1711
09-12 59° 84° 7520 5521 3720 2444 1728
09-13 61° 82° 7569 5560 3750 2466 1744
09-14 67° 74° 7617 5599 3778 2486 1760
09-15 67° 86° 7672 5643 3813 2512 1781
09-16 68° 87° 7727 5688 3848 2540 1803
09-17 68° 87° 7783 5734 3883 2567 1826
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
09-18 67° 84° 7837 5778 3917 2593 1847
09-19 68° 84° 7891 5822 3952 2619 1868
09-20 60° 81° 7939 5860 3980 2640 1883
09-21 62° 80° 7988 5899 4009 2660 1899
09-22 52° 68° 8026 5927 4026 2670 1904
09-23 45° 69° 8061 5952 4042 2677 1906
09-24 52° 72° 8101 5982 4062 2689 1913
09-25 53° 78° 8144 6015 4085 2705 1923
09-26 55° 82° 8190 6052 4111 2723 1936
09-27 54° 82° 8237 6088 4138 2741 1950
09-28 56° 84° 8285 6126 4166 2762 1965
09-29 55° 82° 8332 6163 4192 2780 1979
2024Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
09-30 59° 83° 8381 6202 4222 2801 1995
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
02-15 20° 37° 7 0 0 0 0
02-16 10° 18° 7 0 0 0 0
02-17 4° 27° 7 0 0 0 0
02-18 17° 37° 12 0 0 0 0
02-19 23° 35° 18 0 0 0 0
02-20 15° 34° 21 0 0 0 0
02-21 6° 15° 21 0 0 0 0
02-22 14° 22° 21 0 0 0 0
02-23 3° 18° 21 0 0 0 0
02-24 -12° 11° 21 0 0 0 0
02-25 2° 26° 21 0 0 0 0
02-26 -0° 32° 21 0 0 0 0
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
02-27 29° 34° 30 0 0 0 0
02-28 16° 38° 35 0 0 0 0
02-29 n/a n/a n/a n/a n/a n/a n/a
03-01 24° 36° 43 0 0 0 0
03-02 15° 28° 43 0 0 0 0
03-03 23° 39° 53 0 0 0 0
03-04 20° 38° 60 0 0 0 0
03-05 15° 39° 65 0 0 0 0
03-06 32° 36° 77 2 0 0 0
03-07 29° 39° 89 4 0 0 0
03-08 29° 35° 99 4 0 0 0
03-09 30° 34° 108 4 0 0 0
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
03-10 27° 33° 116 4 0 0 0
03-11 28° 31° 124 4 0 0 0
03-12 26° 32° 131 4 0 0 0
03-13 17° 29° 132 4 0 0 0
03-14 6° 32° 132 4 0 0 0
03-15 29° 44° 147 8 0 0 0
03-16 24° 45° 159 11 0 0 0
03-17 8° 22° 159 11 0 0 0
03-18 7° 27° 159 11 0 0 0
03-19 8° 39° 160 11 0 0 0
03-20 24° 38° 169 11 0 0 0
03-21 24° 39° 179 11 0 0 0
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
03-22 29° 39° 191 13 0 0 0
03-23 24° 36° 199 13 0 0 0
03-24 13° 42° 204 13 0 0 0
03-25 29° 44° 219 18 0 0 0
03-26 26° 42° 231 20 0 0 0
03-27 27° 40° 243 21 0 0 0
03-28 16° 35° 246 21 0 0 0
03-29 12° 27° 246 21 0 0 0
03-30 19° 37° 252 21 0 0 0
03-31 32° 37° 265 24 0 0 0
04-01 26° 38° 275 24 0 0 0
04-02 27° 51° 292 31 0 0 0
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
04-03 38° 45° 311 40 0 0 0
04-04 34° 39° 325 44 0 0 0
04-05 26° 37° 334 44 0 0 0
04-06 24° 36° 342 44 0 0 0
04-07 27° 48° 358 50 0 0 0
04-08 37° 65° 387 69 9 1 0
04-09 53° 66° 424 96 26 10 4
04-10 40° 73° 459 121 41 17 6
04-11 48° 81° 502 154 64 32 16
04-12 64° 89° 556 198 98 58 37
04-13 63° 87° 609 241 131 83 57
04-14 60° 83° 659 281 161 105 74
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
04-15 40° 59° 686 298 168 105 74
04-16 31° 39° 699 301 168 105 74
04-17 31° 47° 716 308 168 105 74
04-18 30° 54° 736 318 168 105 74
04-19 36° 47° 756 328 168 105 74
04-20 37° 42° 773 335 168 105 74
04-21 33° 39° 787 339 168 105 74
04-22 32° 35° 799 341 168 105 74
04-23 29° 43° 813 345 168 105 74
04-24 32° 46° 830 352 168 105 74
04-25 30° 48° 847 359 168 105 74
04-26 30° 56° 868 370 170 105 74
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
04-27 49° 60° 901 393 182 110 74
04-28 42° 52° 926 408 187 110 74
04-29 37° 51° 948 420 189 110 74
04-30 37° 48° 969 431 190 110 74
05-01 41° 55° 995 447 196 110 74
05-02 40° 61° 1023 465 204 110 74
05-03 35° 68° 1053 485 214 112 74
05-04 52° 75° 1094 516 235 125 82
05-05 49° 64° 1128 540 250 131 84
05-06 55° 61° 1165 567 266 140 87
05-07 56° 74° 1208 600 289 155 97
05-08 52° 75° 1249 631 310 168 105
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
05-09 54° 67° 1287 659 328 178 110
05-10 57° 78° 1333 695 354 196 123
05-11 62° 77° 1380 732 381 215 137
05-12 63° 74° 1427 769 408 234 151
05-13 59° 68° 1468 800 430 247 160
05-14 50° 67° 1505 827 446 256 163
05-15 43° 75° 1542 854 463 265 167
05-16 53° 80° 1587 889 488 282 179
05-17 48° 66° 1622 914 503 289 181
05-18 56° 66° 1660 942 522 299 187
05-19 45° 60° 1691 963 532 302 187
05-20 42° 73° 1726 988 547 309 189
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
05-21 48° 78° 1767 1019 568 322 197
05-22 54° 78° 1811 1053 592 338 208
05-23 57° 82° 1859 1091 620 358 223
05-24 54° 75° 1901 1123 643 372 232
05-25 56° 76° 1945 1157 666 388 243
05-26 52° 79° 1989 1191 690 404 254
05-27 51° 82° 2033 1225 714 420 265
05-28 53° 81° 2078 1260 739 437 277
05-29 63° 86° 2131 1303 772 462 297
05-30 63° 87° 2184 1346 805 487 317
05-31 65° 87° 2238 1390 839 513 338
06-01 71° 87° 2295 1437 876 542 362
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
06-02 69° 84° 2350 1482 911 569 384
06-03 66° 88° 2405 1527 946 596 406
06-04 67° 89° 2461 1573 982 624 429
06-05 65° 85° 2514 1616 1015 649 449
06-06 66° 84° 2567 1659 1048 674 469
06-07 64° 79° 2617 1699 1078 696 486
06-08 59° 80° 2665 1737 1106 716 501
06-09 55° 84° 2713 1775 1134 736 516
06-10 58° 82° 2761 1813 1162 756 531
06-11 49° 69° 2798 1840 1179 765 535
06-12 51° 79° 2841 1873 1202 780 545
06-13 57° 85° 2890 1912 1231 801 561
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
06-14 58° 81° 2937 1949 1258 820 575
06-15 57° 71° 2979 1981 1281 834 584
06-16 48° 77° 3020 2012 1301 847 592
06-17 57° 83° 3067 2049 1329 867 607
06-18 68° 77° 3118 2090 1359 889 624
06-19 64° 88° 3172 2134 1393 915 645
06-20 70° 90° 3230 2182 1431 945 670
06-21 66° 90° 3286 2228 1467 973 693
06-22 67° 90° 3342 2274 1504 1002 717
06-23 69° 90° 3400 2322 1541 1031 741
06-24 68° 84° 3454 2366 1575 1057 762
06-25 63° 73° 3500 2402 1601 1075 775
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
06-26 63° 82° 3550 2442 1632 1097 792
06-27 60° 85° 3601 2483 1662 1120 810
06-28 69° 84° 3655 2527 1696 1146 831
06-29 62° 88° 3708 2570 1729 1171 851
06-30 64° 85° 3761 2613 1762 1196 871
07-01 65° 86° 3814 2656 1795 1221 891
07-02 66° 88° 3869 2701 1830 1248 913
07-03 70° 94° 3929 2751 1870 1280 940
07-04 66° 79° 3979 2791 1901 1302 957
07-05 64° 75° 4027 2829 1928 1322 972
07-06 53° 75° 4069 2861 1950 1336 981
07-07 55° 73° 4111 2893 1972 1350 990
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
07-08 57° 79° 4157 2929 1998 1368 1003
07-09 55° 85° 4205 2967 2026 1388 1018
07-10 70° 92° 4264 3016 2065 1419 1044
07-11 53° 75° 4306 3048 2088 1433 1053
07-12 60° 78° 4353 3085 2114 1452 1067
07-13 62° 86° 4405 3127 2146 1476 1086
07-14 64° 87° 4459 3171 2180 1502 1107
07-15 61° 80° 4507 3209 2208 1522 1122
07-16 57° 77° 4552 3244 2233 1539 1134
07-17 56° 73° 4595 3277 2256 1554 1144
07-18 55° 81° 4641 3313 2282 1572 1157
07-19 64° 88° 4695 3357 2316 1598 1178
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
07-20 63° 77° 4743 3395 2344 1618 1193
07-21 59° 81° 4791 3433 2372 1638 1208
07-22 60° 82° 4840 3472 2401 1659 1224
07-23 60° 84° 4891 3513 2432 1682 1242
07-24 62° 86° 4943 3555 2464 1706 1261
07-25 67° 92° 5000 3602 2502 1735 1285
07-26 69° 91° 5058 3650 2540 1766 1311
07-27 72° 94° 5119 3701 2581 1799 1339
07-28 69° 88° 5176 3748 2617 1827 1362
07-29 61° 79° 5224 3786 2645 1847 1377
07-30 59° 79° 5271 3823 2672 1866 1391
07-31 57° 83° 5319 3861 2700 1886 1406
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
08-01 61° 85° 5370 3902 2731 1909 1424
08-02 70° 89° 5428 3950 2769 1939 1449
08-03 72° 93° 5488 4000 2809 1971 1476
08-04 66° 88° 5543 4045 2844 1998 1498
08-05 70° 82° 5597 4089 2879 2024 1519
08-06 67° 73° 5646 4128 2907 2045 1535
08-07 62° 82° 5696 4168 2937 2067 1552
08-08 59° 83° 5745 4207 2966 2088 1568
08-09 62° 79° 5794 4246 2995 2109 1584
08-10 63° 77° 5842 4284 3023 2129 1599
08-11 64° 85° 5894 4326 3056 2153 1618
08-12 61° 80° 5943 4365 3084 2174 1634
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
08-13 63° 72° 5988 4400 3109 2191 1646
08-14 61° 70° 6032 4434 3133 2207 1657
08-15 53° 80° 6076 4468 3157 2223 1668
08-16 63° 84° 6128 4510 3189 2247 1687
08-17 62° 73° 6173 4545 3215 2265 1700
08-18 53° 78° 6217 4579 3238 2280 1710
08-19 66° 90° 6273 4625 3274 2308 1733
08-20 64° 78° 6322 4664 3303 2329 1749
08-21 61° 74° 6367 4699 3329 2346 1761
08-22 69° 97° 6428 4750 3369 2379 1789
08-23 78° 94° 6493 4805 3414 2416 1821
08-24 68° 84° 6547 4849 3448 2442 1842
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
08-25 68° 86° 6602 4894 3483 2469 1864
08-26 60° 71° 6645 4927 3506 2484 1874
08-27 53° 75° 6687 4959 3528 2498 1883
08-28 61° 84° 6738 5000 3559 2521 1901
08-29 62° 80° 6787 5039 3588 2542 1917
08-30 58° 77° 6832 5074 3613 2559 1929
08-31 58° 80° 6879 5111 3640 2578 1943
09-01 61° 89° 6932 5154 3673 2603 1963
09-02 70° 87° 6988 5200 3710 2632 1987
09-03 74° 96° 7052 5254 3753 2667 2017
09-04 73° 96° 7114 5306 3795 2701 2046
09-05 74° 89° 7174 5356 3835 2733 2073
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
09-06 60° 75° 7220 5392 3861 2751 2086
09-07 56° 63° 7257 5419 3879 2760 2090
09-08 48° 76° 7297 5449 3898 2772 2097
09-09 58° 75° 7341 5483 3922 2788 2108
09-10 60° 71° 7385 5517 3946 2804 2119
09-11 51° 71° 7424 5546 3965 2815 2125
09-12 52° 62° 7459 5571 3981 2823 2128
09-13 42° 65° 7491 5593 3992 2826 2128
09-14 49° 82° 7534 5626 4015 2841 2138
09-15 58° 73° 7578 5660 4039 2857 2148
09-16 53° 70° 7618 5690 4059 2869 2155
09-17 48° 71° 7655 5717 4076 2878 2159
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
09-18 50° 76° 7696 5748 4097 2891 2167
09-19 60° 79° 7743 5785 4125 2910 2182
09-20 59° 84° 7793 5825 4154 2932 2198
09-21 60° 83° 7842 5864 4183 2953 2215
09-22 62° 73° 7888 5900 4209 2971 2228
09-23 64° 73° 7935 5937 4236 2990 2241
09-24 60° 70° 7977 5969 4259 3005 2251
09-25 60° 63° 8017 5999 4278 3016 2258
09-26 61° 65° 8058 6030 4299 3029 2265
09-27 60° 71° 8101 6063 4323 3045 2276
09-28 61° 70° 8145 6097 4346 3060 2287
09-29 60° 72° 8189 6131 4371 3076 2298
2023Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
09-30 66° 85° 8243 6175 4404 3102 2318

 

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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