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MSU Proxy/Primo Seedhead Timer (GDD 32)
through Wed, Mar. 27. 2024

 

GDD Total: 534 (Base 32) through Wed, Mar. 27, 2024

  

Bellbrook, OH

       

Forecast »

Done

651

Over

501

Target

220

Close

121

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 30° 53° 20 10 0 0 0
02-16 26° 38° 30 10 0 0 0
02-17 15° 26° 30 10 0 0 0
02-18 14° 39° 34 10 0 0 0
02-19 19° 46° 44 10 0 0 0
02-20 26° 55° 63 18 0 0 0
02-21 32° 62° 88 33 5 0 0
02-22 47° 58° 118 53 15 2 0
02-23 41° 54° 144 69 21 2 0
02-24 24° 40° 154 69 21 2 0
02-25 25° 53° 171 76 21 2 0
02-26 36° 68° 200 96 31 4 0
2024Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
02-27 58° 65° 240 125 50 15 6
02-28 28° 67° 265 141 55 15 6
02-29 25° 42° 277 142 55 15 6
03-01 29° 43° 291 146 55 15 6
03-02 41° 51° 314 160 59 15 6
03-03 41° 66° 346 181 71 19 6
03-04 49° 73° 385 211 90 30 13
03-05 55° 67° 424 240 109 41 19
03-06 44° 57° 453 258 118 42 19
03-07 41° 51° 477 273 122 42 19
03-08 43° 57° 505 291 130 42 19
03-09 40° 56° 532 307 136 42 19
2024Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
03-10 32° 40° 545 311 136 42 19
03-11 27° 55° 564 320 136 42 19
03-12 39° 67° 595 340 147 44 19
03-13 45° 71° 631 366 163 52 22
03-14 52° 71° 670 396 183 64 28
03-15 42° 61° 700 415 192 66 28
03-16 32° 61° 724 430 197 66 28
03-17 37° 55° 748 444 201 66 28
03-18 31° 34° 759 444 201 66 28
03-19 29° 51° 777 452 201 66 28
03-20 31° 51° 796 461 201 66 28
03-21 23° 42° 806 462 201 66 28
2024Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
03-22 30° 49° 824 469 201 66 28
03-23 30° 40° 837 472 201 66 28
03-24 23° 51° 852 477 201 66 28
03-25 43° 70° 886 502 215 72 30
03-26 47° 61° 919 524 227 76 30
03-27 35° 49° 938 534 227 76 30
03-28 29° 54° 958 543 227 76 30
03-29 38° 64° 987 562 237 77 30
03-30 48° 66° 1022 587 251 84 32
03-31 45° 64° 1054 609 264 89 32
04-01 52° 69° 1092 638 282 99 37
04-02 49° 58° 1124 659 294 103 37
2024Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
04-03 36° 53° 1146 672 296 103 37
2023Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
02-15 51° 71° 39 29 19 11 6
02-16 45° 59° 69 49 29 13 6
02-17 26° 44° 82 52 29 13 6
02-18 19° 44° 92 52 29 13 6
02-19 36° 57° 116 67 34 13 6
02-20 37° 58° 141 82 39 13 6
02-21 37° 50° 163 93 41 13 6
02-22 38° 72° 196 116 53 18 6
02-23 38° 71° 228 139 66 23 6
02-24 25° 42° 240 141 66 23 6
02-25 31° 50° 258 149 66 23 6
02-26 28° 56° 279 159 66 23 6
2023Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
02-27 38° 64° 307 178 75 24 6
02-28 38° 51° 330 190 78 24 6
02-29 n/a n/a n/a n/a n/a n/a n/a
03-01 38° 76° 365 215 93 30 8
03-02 41° 55° 391 231 99 30 8
03-03 37° 55° 415 245 103 30 8
03-04 36° 52° 437 257 105 30 8
03-05 35° 54° 460 270 108 30 8
03-06 39° 73° 494 294 122 36 9
03-07 32° 48° 512 302 122 36 9
03-08 28° 48° 528 308 122 36 9
03-09 28° 50° 545 315 122 36 9
2023Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
03-10 35° 43° 562 322 122 36 9
03-11 32° 41° 576 327 122 36 9
03-12 30° 36° 587 328 122 36 9
03-13 30° 35° 598 329 122 36 9
03-14 28° 33° 607 329 122 36 9
03-15 20° 47° 618 330 122 36 9
03-16 33° 61° 643 345 127 36 9
03-17 31° 57° 665 357 129 36 9
03-18 20° 31° 669 357 129 36 9
03-19 16° 35° 672 357 129 36 9
03-20 21° 49° 685 360 129 36 9
03-21 29° 58° 707 371 130 36 9
2023Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
03-22 43° 52° 732 387 136 36 9
03-23 49° 70° 769 414 153 46 13
03-24 39° 49° 791 426 155 46 13
03-25 40° 60° 819 444 163 46 13
03-26 32° 61° 844 458 167 46 13
03-27 43° 53° 870 474 173 46 13
03-28 33° 48° 888 483 173 46 13
03-29 30° 53° 908 493 173 46 13
03-30 28° 58° 929 503 174 46 13
03-31 45° 60° 959 524 184 48 13
04-01 36° 61° 986 541 191 48 13
04-02 35° 50° 1007 551 192 48 13
2023Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
04-03 39° 69° 1039 574 204 53 13
04-04 55° 69° 1080 604 225 65 21
04-05 60° 74° 1125 639 250 82 33
04-06 41° 59° 1153 658 258 83 33
04-07 37° 53° 1176 671 261 83 33
04-08 37° 55° 1200 685 265 83 33
04-09 35° 61° 1226 701 272 83 33
04-10 37° 68° 1257 721 282 85 33
04-11 40° 72° 1290 745 296 91 33
04-12 48° 76° 1330 775 315 102 40
04-13 46° 79° 1371 806 336 115 48
04-14 52° 73° 1412 836 357 128 56
2023Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
04-15 57° 78° 1457 872 382 145 68
04-16 45° 71° 1493 898 398 153 71
04-17 38° 45° 1513 908 398 153 71
04-18 32° 60° 1537 922 403 153 71
04-19 37° 78° 1573 947 418 161 74
04-20 55° 82° 1619 984 444 179 87
04-21 49° 68° 1655 1010 461 187 90
04-22 41° 55° 1681 1026 467 187 90
04-23 35° 45° 1699 1034 467 187 90
04-24 36° 47° 1719 1044 467 187 90
04-25 32° 56° 1741 1056 469 187 90
04-26 39° 59° 1768 1072 475 187 90
2023Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
04-27 36° 66° 1797 1091 484 188 90
04-28 48° 62° 1830 1114 497 193 90
04-29 51° 65° 1866 1141 514 201 93
04-30 42° 54° 1892 1157 520 201 93
05-01 39° 44° 1912 1167 520 201 93
05-02 41° 47° 1934 1179 523 201 93
05-03 40° 56° 1960 1195 528 201 93
05-04 36° 63° 1988 1212 536 201 93
05-05 41° 71° 2022 1237 550 208 95
05-06 47° 75° 2061 1266 569 219 101
05-07 59° 74° 2106 1300 594 235 112
05-08 58° 76° 2150 1335 619 252 124
2023Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
05-09 54° 69° 2190 1365 638 264 131
05-10 44° 74° 2228 1392 656 273 135
05-11 50° 81° 2271 1425 679 289 146
05-12 60° 78° 2318 1463 706 308 160
05-13 66° 74° 2366 1500 734 328 175
05-14 59° 76° 2412 1536 760 345 187
05-15 53° 73° 2453 1568 781 359 196
05-16 57° 64° 2491 1596 799 369 201
05-17 50° 66° 2527 1622 815 377 204
05-18 41° 73° 2562 1646 830 383 205
05-19 56° 79° 2607 1682 855 401 218
05-20 54° 67° 2646 1711 874 412 224
2023Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
05-21 44° 74° 2683 1738 891 421 228
05-22 50° 75° 2724 1769 912 434 236
05-23 54° 80° 2769 1804 937 451 248
05-24 54° 80° 2814 1839 962 468 260
05-25 47° 69° 2850 1865 979 476 263
05-26 45° 75° 2888 1893 997 486 268
05-27 49° 76° 2929 1924 1017 499 276
05-28 59° 77° 2975 1960 1043 517 289
05-29 57° 85° 3024 1999 1072 538 305
05-30 61° 84° 3074 2039 1102 560 322
05-31 63° 85° 3126 2081 1134 584 341
06-01 61° 88° 3178 2123 1167 608 360
2023Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
06-02 56° 90° 3230 2164 1198 632 379
06-03 64° 89° 3284 2209 1232 658 400
06-04 59° 85° 3334 2249 1262 680 417
06-05 53° 79° 3378 2283 1286 696 428
06-06 52° 83° 3424 2319 1312 714 441
06-07 54° 74° 3466 2351 1335 728 450
06-08 48° 75° 3506 2381 1354 740 457
06-09 52° 78° 3549 2414 1377 755 467
06-10 53° 84° 3595 2450 1403 773 480
06-11 59° 76° 3640 2485 1429 790 492
06-12 57° 69° 3681 2516 1449 803 500
06-13 51° 66° 3718 2543 1466 812 504
2023Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
06-14 59° 72° 3762 2576 1490 827 514
06-15 57° 80° 3808 2613 1516 846 528
06-16 55° 71° 3849 2644 1537 859 536
06-17 53° 77° 3892 2677 1560 874 546
06-18 56° 81° 3939 2713 1587 892 559
06-19 64° 70° 3984 2748 1612 910 572
06-20 66° 71° 4030 2785 1639 928 585
06-21 64° 81° 4081 2826 1669 951 603
06-22 60° 70° 4124 2859 1692 966 613
06-23 64° 75° 4172 2897 1720 986 628
06-24 66° 84° 4225 2940 1753 1011 648
06-25 66° 85° 4278 2983 1787 1036 668
2023Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
06-26 67° 79° 4330 3024 1818 1060 687
06-27 65° 72° 4376 3061 1844 1078 700
06-28 56° 80° 4422 3097 1870 1096 713
06-29 63° 87° 4475 3140 1903 1121 733
06-30 67° 90° 4532 3187 1940 1150 757
07-01 71° 83° 4587 3231 1975 1176 778
07-02 67° 81° 4639 3274 2007 1201 798
07-03 67° 79° 4690 3314 2038 1224 816
07-04 68° 86° 4745 3359 2073 1250 837
07-05 69° 85° 4800 3404 2108 1277 859
07-06 68° 82° 4853 3447 2141 1303 880
07-07 65° 83° 4905 3490 2173 1327 899
2023Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
07-08 66° 77° 4955 3529 2203 1348 915
07-09 65° 76° 5003 3567 2231 1369 931
07-10 59° 83° 5052 3607 2260 1390 947
07-11 62° 85° 5104 3648 2292 1413 965
07-12 65° 86° 5157 3692 2325 1439 986
07-13 72° 88° 5215 3740 2363 1469 1011
07-14 67° 88° 5270 3785 2399 1496 1033
07-15 68° 78° 5321 3826 2429 1519 1051
07-16 67° 82° 5374 3868 2462 1543 1070
07-17 64° 82° 5425 3910 2493 1567 1089
07-18 62° 81° 5475 3949 2523 1589 1106
07-19 64° 83° 5527 3991 2555 1612 1124
2023Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
07-20 70° 87° 5583 4038 2591 1641 1148
07-21 64° 78° 5632 4076 2620 1662 1164
07-22 60° 80° 5680 4114 2648 1682 1179
07-23 61° 83° 5729 4154 2677 1703 1195
07-24 63° 84° 5780 4195 2709 1726 1213
07-25 63° 85° 5833 4237 2741 1750 1232
07-26 68° 90° 5890 4285 2778 1780 1257
07-27 74° 88° 5948 4333 2817 1810 1282
07-28 72° 85° 6005 4380 2853 1839 1306
07-29 70° 84° 6060 4425 2888 1866 1328
07-30 65° 85° 6114 4468 2922 1891 1348
07-31 63° 79° 6163 4507 2951 1912 1364
2023Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
08-01 57° 80° 6210 4544 2978 1931 1378
08-02 59° 81° 6258 4582 3006 1951 1393
08-03 63° 85° 6310 4624 3038 1975 1412
08-04 63° 88° 6363 4668 3071 2001 1433
08-05 67° 82° 6416 4711 3104 2026 1453
08-06 71° 84° 6471 4756 3139 2053 1475
08-07 66° 76° 6520 4795 3168 2074 1491
08-08 62° 80° 6570 4834 3198 2095 1507
08-09 62° 79° 6618 4873 3226 2116 1523
08-10 66° 80° 6669 4914 3257 2139 1541
08-11 64° 83° 6721 4955 3289 2162 1559
08-12 69° 88° 6777 5002 3325 2191 1583
2023Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
08-13 61° 85° 6828 5043 3356 2214 1601
08-14 70° 78° 6881 5085 3389 2238 1620
08-15 64° 72° 6927 5121 3415 2256 1633
08-16 60° 77° 6973 5158 3441 2275 1647
08-17 61° 79° 7022 5196 3470 2295 1662
08-18 58° 75° 7066 5230 3494 2311 1673
08-19 53° 79° 7110 5265 3518 2328 1685
08-20 62° 88° 7163 5307 3551 2352 1704
08-21 72° 90° 7221 5356 3589 2383 1730
08-22 68° 84° 7276 5400 3624 2409 1751
08-23 65° 90° 7331 5446 3659 2437 1774
08-24 68° 86° 7386 5491 3694 2464 1796
2023Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
08-25 76° 90° 7447 5541 3735 2497 1824
08-26 71° 82° 7501 5586 3770 2523 1845
08-27 63° 78° 7550 5624 3798 2544 1861
08-28 57° 78° 7595 5660 3823 2561 1873
08-29 53° 80° 7640 5694 3848 2577 1884
08-30 58° 68° 7681 5725 3869 2590 1892
08-31 55° 74° 7723 5758 3891 2605 1902
09-01 53° 80° 7768 5793 3916 2622 1914
09-02 60° 88° 7820 5835 3948 2646 1933
09-03 67° 88° 7875 5880 3983 2673 1955
09-04 65° 89° 7930 5925 4018 2700 1977
09-05 68° 90° 7987 5972 4055 2729 2001
2023Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
09-06 70° 83° 8042 6017 4090 2756 2023
09-07 67° 75° 8091 6055 4119 2776 2038
09-08 64° 76° 8139 6093 4147 2796 2053
09-09 60° 75° 8185 6129 4173 2814 2066
09-10 57° 78° 8230 6164 4198 2831 2078
09-11 53° 81° 8275 6199 4223 2849 2091
09-12 61° 70° 8319 6233 4247 2865 2102
09-13 54° 73° 8360 6265 4268 2878 2110
09-14 49° 74° 8400 6294 4288 2890 2117
09-15 49° 74° 8439 6324 4307 2901 2123
09-16 46° 74° 8477 6352 4326 2911 2128
09-17 56° 75° 8521 6385 4349 2927 2139
2023Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
09-18 52° 73° 8561 6416 4369 2939 2146
09-19 45° 75° 8600 6444 4388 2949 2151
09-20 53° 80° 8644 6479 4412 2966 2163
09-21 55° 81° 8690 6515 4438 2984 2176
09-22 56° 80° 8737 6551 4465 3002 2189
09-23 50° 76° 8778 6582 4486 3015 2197
09-24 52° 77° 8820 6615 4508 3030 2207
09-25 62° 71° 8865 6649 4533 3047 2219
09-26 59° 75° 8910 6685 4558 3064 2231
09-27 60° 71° 8954 6718 4582 3080 2242
09-28 62° 71° 8998 6753 4606 3096 2253
09-29 60° 76° 9044 6789 4632 3114 2266
2023Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
09-30 56° 80° 9090 6825 4659 3132 2279

 

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!