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MSU Annual Bluegrass Seedhead Embark Timer (GDD 22)
through Fri, Apr. 3. 2026

 

GDD Total: 1089 (Base 22) through Fri, Apr. 3, 2026

  

Fremont, OH

        

Forecast »

“Flashback” to 2025

3/28

3/29

3/30

3/31

4/1

4/2

4/3

4/4

4/5

4/6

4/7

4/8

4/9

Done

1450

Over

1050

Target

680

Close

380

Under

0

 

Generously Supported By:



Tabular Data

Daily GDD accumulation for various base temperature models in 2025 & 2026

2026Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
02-15 37° 57° 25 15 5 0 0
02-16 31° 56° 47 27 7 0 0
02-17 39° 62° 75 45 15 0 0
02-18 47° 70° 111 71 31 9 3
02-19 37° 47° 132 82 32 9 3
02-20 33° 49° 151 91 32 9 3
02-21 30° 36° 162 92 32 9 3
02-22 27° 32° 169 92 32 9 3
02-23 21° 29° 173 92 32 9 3
02-24 16° 35° 176 92 32 9 3
02-25 25° 45° 189 95 32 9 3
02-26 16° 40° 195 95 32 9 3
2026Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
02-27 25° 59° 216 105 32 9 3
02-28 29° 53° 235 114 32 9 3
03-01 20° 31° 238 114 32 9 3
03-02 17° 39° 244 114 32 9 3
03-03 23° 41° 254 114 32 9 3
03-04 34° 43° 271 121 32 9 3
03-05 37° 44° 289 129 32 9 3
03-06 38° 70° 321 151 44 12 3
03-07 57° 70° 363 182 65 26 12
03-08 43° 62° 393 203 76 28 12
03-09 48° 74° 432 232 95 39 18
03-10 62° 78° 480 270 123 59 33
2026Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
03-11 37° 69° 511 291 134 63 33
03-12 30° 44° 526 296 134 63 33
03-13 32° 57° 549 309 137 63 33
03-14 28° 41° 562 312 137 63 33
03-15 36° 75° 596 335 150 68 33
03-16 25° 68° 620 350 155 68 33
03-17 20° 27° 622 350 155 68 33
03-18 17° 37° 627 350 155 68 33
03-19 36° 61° 653 367 161 68 33
03-20 42° 75° 690 393 178 77 37
03-21 35° 51° 711 404 179 77 37
03-22 36° 68° 741 424 189 79 37
2026Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
03-23 29° 39° 753 426 189 79 37
03-24 20° 48° 765 428 189 79 37
03-25 36° 65° 793 446 198 80 37
03-26 47° 81° 835 478 220 94 46
03-27 29° 46° 851 484 220 94 46
03-28 29° 44° 865 489 220 94 46
03-29 33° 62° 891 504 225 94 46
03-30 57° 75° 935 538 249 110 57
03-31 63° 77° 983 576 277 129 72
04-01 34° 63° 1009 593 284 129 72
04-02 38° 74° 1043 616 297 135 73
04-03 58° 77° 1089 652 323 153 85
2026Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
04-04 50° 78° 1131 684 345 167 94
04-05 41° 47° 1153 696 347 167 94
04-06 35° 50° 1173 707 348 167 94
04-07 29° 41° 1186 709 348 167 94
04-08 29° 61° 1209 723 351 167 94
04-09 49° 69° 1246 750 368 176 98
04-10 49° 66° 1282 775 383 183 101
2025Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
02-15 26° 40° 11 1 0 0 0
02-16 23° 35° 18 1 0 0 0
02-17 10° 24° 18 1 0 0 0
02-18 7° 16° 18 1 0 0 0
02-19 9° 19° 18 1 0 0 0
02-20 15° 25° 18 1 0 0 0
02-21 20° 30° 21 1 0 0 0
02-22 18° 31° 24 1 0 0 0
02-23 26° 38° 33 1 0 0 0
02-24 35° 52° 55 13 2 0 0
02-25 40° 57° 82 29 8 0 0
02-26 33° 42° 97 35 8 0 0
2025Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
02-27 38° 48° 118 45 9 0 0
02-28 31° 57° 140 57 11 0 0
03-01 24° 49° 154 62 11 0 0
03-02 21° 31° 158 62 11 0 0
03-03 24° 41° 168 62 11 0 0
03-04 38° 64° 197 81 20 1 0
03-05 36° 58° 223 96 26 1 0
03-06 29° 37° 233 97 26 1 0
03-07 30° 41° 247 101 26 1 0
03-08 28° 36° 257 101 26 1 0
03-09 33° 55° 279 113 28 1 0
03-10 39° 66° 310 133 38 4 0
2025Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
03-11 36° 68° 340 153 48 6 0
03-12 32° 46° 357 160 48 6 0
03-13 26° 55° 375 168 48 6 0
03-14 34° 79° 409 193 63 12 2
03-15 60° 74° 455 229 88 30 14
03-16 38° 62° 483 246 96 30 14
03-17 29° 47° 498 252 96 30 14
03-18 37° 71° 531 274 108 34 14
03-19 60° 73° 575 309 133 50 25
03-20 37° 64° 603 327 141 50 25
03-21 25° 54° 621 334 141 50 25
03-22 33° 50° 640 344 141 50 25
2025Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
03-23 22° 45° 652 345 141 50 25
03-24 32° 45° 668 352 141 50 25
03-25 24° 49° 683 357 141 50 25
03-26 23° 48° 697 360 141 50 25
03-27 24° 60° 716 370 141 50 25
03-28 48° 66° 751 395 156 57 27
03-29 60° 77° 797 431 182 76 41
03-30 60° 70° 840 464 205 90 50
03-31 40° 59° 868 482 213 90 50
04-01 33° 42° 883 487 213 90 50
04-02 37° 71° 915 509 224 94 50
04-03 56° 68° 955 539 244 106 57
2025Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
04-04 45° 56° 984 557 253 107 57
04-05 47° 59° 1015 578 264 110 57
04-06 37° 48° 1035 589 264 110 57
04-07 30° 52° 1054 598 264 110 57
04-08 22° 42° 1064 598 264 110 57
04-09 24° 49° 1078 602 264 110 57
04-10 37° 46° 1097 611 264 110 57
04-11 36° 48° 1117 621 264 110 57
04-12 28° 54° 1136 630 264 110 57
04-13 35° 60° 1162 646 270 110 57
04-14 52° 75° 1204 678 292 123 66
04-15 43° 55° 1231 695 299 123 66
2025Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
04-16 33° 53° 1253 706 301 123 66
04-17 30° 65° 1279 722 306 123 66
04-18 56° 85° 1327 761 335 144 82
04-19 57° 75° 1371 795 359 160 93
04-20 46° 56° 1400 814 368 161 93
04-21 48° 75° 1440 843 388 173 99
04-22 47° 69° 1476 870 404 181 103
04-23 52° 82° 1521 905 429 198 115
04-24 54° 86° 1569 943 457 218 130
04-25 65° 78° 1619 982 486 239 146
04-26 45° 65° 1651 1005 499 244 146
04-27 37° 65° 1681 1024 508 245 146
2025Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
04-28 42° 79° 1719 1053 527 256 152
04-29 61° 80° 1768 1091 556 277 167
04-30 45° 59° 1798 1111 565 278 167
05-01 50° 74° 1838 1142 586 291 175
05-02 61° 76° 1885 1178 613 310 188
05-03 46° 58° 1915 1199 623 312 188
05-04 47° 51° 1942 1216 630 312 188
05-05 49° 60° 1974 1238 642 316 188
05-06 54° 59° 2009 1262 656 322 190
05-07 51° 72° 2048 1292 676 334 196
05-08 47° 54° 2076 1310 684 334 196
05-09 42° 63° 2107 1330 695 336 196
2025Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
05-10 43° 79° 2146 1359 714 348 202
05-11 48° 63° 2179 1383 727 353 203
05-12 46° 80° 2220 1414 748 366 211
05-13 63° 75° 2268 1451 776 385 225
05-14 61° 78° 2315 1489 803 405 240
05-15 64° 84° 2367 1531 835 429 258
05-16 70° 86° 2423 1577 871 457 282
05-17 59° 70° 2466 1610 894 472 291
05-18 55° 71° 2507 1641 915 485 300
05-19 51° 62° 2541 1665 929 491 301
05-20 46° 60° 2572 1686 940 494 301
05-21 52° 63° 2608 1711 956 502 303
2025Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
05-22 49° 55° 2638 1732 966 504 303
05-23 42° 58° 2666 1750 974 504 303
05-24 45° 64° 2699 1773 987 509 303
05-25 45° 68° 2733 1797 1001 515 305
05-26 42° 68° 2767 1820 1014 520 305
05-27 53° 69° 2805 1849 1033 531 311
05-28 56° 60° 2842 1875 1049 539 314
05-29 53° 71° 2882 1905 1070 552 321
05-30 53° 77° 2924 1938 1092 566 331
05-31 52° 64° 2960 1964 1108 574 334
06-01 43° 69° 2994 1988 1122 580 335
06-02 44° 81° 3035 2018 1142 592 342
2025Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
06-03 57° 89° 3085 2059 1173 615 360
06-04 72° 90° 3145 2108 1213 647 386
06-05 64° 77° 3193 2147 1241 667 402
06-06 63° 68° 3236 2180 1264 682 412
06-07 58° 79° 3283 2216 1291 700 425
06-08 61° 80° 3331 2254 1319 721 440
06-09 63° 78° 3379 2293 1347 741 456
06-10 53° 78° 3423 2327 1371 757 467
06-11 61° 87° 3475 2369 1403 781 485
06-12 66° 82° 3527 2411 1435 805 505
06-13 61° 71° 3571 2445 1459 821 516
06-14 60° 66° 3612 2476 1480 834 524
2025Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
06-15 58° 75° 3657 2510 1505 850 535
06-16 61° 79° 3705 2548 1533 870 550
06-17 67° 82° 3757 2591 1565 895 570
06-18 68° 86° 3812 2636 1600 922 592
06-19 64° 73° 3859 2672 1627 941 605
06-20 63° 85° 3910 2714 1658 964 624
06-21 70° 90° 3968 2762 1696 994 649
06-22 76° 95° 4032 2816 1740 1030 680
06-23 76° 95° 4096 2869 1784 1065 710
06-24 75° 95° 4159 2922 1827 1101 740
06-25 75° 91° 4220 2974 1868 1134 768
06-26 74° 91° 4280 3024 1908 1166 795
2025Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
06-27 72° 93° 4340 3074 1948 1198 823
06-28 74° 88° 4399 3123 1987 1229 849
06-29 66° 88° 4454 3168 2022 1256 871
06-30 74° 81° 4510 3214 2058 1284 893
07-01 72° 84° 4566 3260 2094 1312 917
07-02 65° 86° 4620 3303 2128 1337 937
07-03 67° 88° 4675 3349 2163 1365 960
07-04 65° 90° 4731 3394 2198 1392 982
07-05 71° 92° 4790 3444 2238 1424 1009
07-06 71° 93° 4850 3494 2278 1456 1036
07-07 70° 79° 4903 3537 2311 1481 1055
07-08 66° 83° 4955 3579 2343 1505 1075
2025Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
07-09 69° 84° 5010 3624 2378 1532 1097
07-10 68° 87° 5066 3669 2414 1559 1119
07-11 69° 87° 5122 3715 2449 1587 1142
07-12 73° 90° 5181 3765 2489 1619 1168
07-13 71° 90° 5239 3813 2527 1649 1194
07-14 70° 86° 5295 3859 2563 1677 1217
07-15 61° 89° 5348 3902 2596 1702 1236
07-16 72° 83° 5403 3947 2631 1729 1259
07-17 71° 81° 5457 3991 2665 1755 1280
07-18 65° 75° 5505 4029 2693 1775 1294
07-19 59° 83° 5554 4068 2722 1796 1311
07-20 68° 81° 5607 4111 2755 1821 1331
2025Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
07-21 60° 76° 5653 4147 2781 1839 1344
07-22 58° 78° 5699 4183 2807 1857 1357
07-23 59° 87° 5750 4224 2838 1880 1375
07-24 69° 93° 5809 4273 2877 1911 1401
07-25 74° 85° 5867 4321 2915 1941 1425
07-26 73° 87° 5925 4369 2953 1971 1451
07-27 74° 89° 5985 4418 2993 2002 1477
07-28 72° 89° 6043 4467 3031 2033 1503
07-29 71° 89° 6101 4515 3069 2063 1528
07-30 71° 89° 6160 4563 3108 2094 1553
07-31 63° 70° 6204 4598 3132 2110 1565
08-01 57° 75° 6249 4632 3156 2126 1576
2025Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
08-02 58° 75° 6293 4667 3181 2143 1588
08-03 54° 78° 6338 4701 3206 2159 1599
08-04 57° 80° 6385 4738 3232 2178 1613
08-05 64° 82° 6436 4780 3264 2202 1631
08-06 67° 84° 6489 4823 3297 2227 1652
08-07 66° 85° 6543 4867 3331 2253 1672
08-08 68° 88° 6599 4912 3366 2280 1695
08-09 68° 89° 6655 4958 3403 2309 1718
08-10 68° 90° 6712 5006 3440 2338 1742
08-11 71° 91° 6771 5054 3479 2369 1768
08-12 74° 93° 6832 5106 3520 2402 1797
08-13 72° 85° 6889 5152 3557 2430 1820
2025Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
08-14 69° 84° 6943 5197 3591 2457 1842
08-15 64° 89° 6998 5242 3626 2484 1863
08-16 68° 92° 7056 5290 3664 2514 1889
08-17 70° 85° 7112 5335 3699 2541 1911
08-18 65° 81° 7162 5376 3730 2564 1929
08-19 63° 86° 7215 5419 3763 2589 1949
08-20 67° 74° 7264 5457 3792 2610 1964
08-21 64° 70° 7309 5492 3817 2626 1976
08-22 59° 80° 7356 5530 3844 2646 1991
08-23 63° 80° 7406 5570 3874 2668 2007
08-24 59° 77° 7452 5605 3900 2686 2020
08-25 54° 72° 7493 5636 3921 2698 2028
2025Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
08-26 49° 71° 7530 5664 3938 2708 2033
08-27 48° 74° 7569 5693 3957 2719 2039
08-28 54° 67° 7608 5722 3976 2730 2045
08-29 51° 68° 7646 5749 3994 2739 2049
08-30 46° 70° 7682 5775 4009 2747 2052
08-31 49° 73° 7721 5804 4029 2758 2058
09-01 49° 79° 7763 5837 4051 2773 2067
09-02 51° 80° 7806 5870 4074 2788 2078
09-03 52° 83° 7852 5905 4100 2805 2090
09-04 54° 69° 7891 5935 4119 2817 2097
09-05 49° 77° 7932 5966 4140 2830 2104
09-06 54° 69° 7971 5995 4159 2841 2111
2025Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
09-07 46° 70° 8007 6021 4175 2849 2114
09-08 44° 72° 8043 6047 4191 2857 2116
09-09 46° 77° 8083 6076 4211 2868 2123
09-10 49° 80° 8125 6109 4233 2883 2133
09-11 51° 78° 8167 6141 4255 2897 2142
09-12 50° 79° 8210 6174 4278 2912 2152
09-13 52° 77° 8253 6206 4300 2926 2161
09-14 51° 79° 8296 6240 4324 2942 2171
09-15 55° 82° 8342 6276 4350 2960 2185
09-16 57° 83° 8390 6314 4378 2980 2200
09-17 58° 83° 8439 6353 4407 3001 2216
09-18 52° 86° 8486 6390 4434 3020 2230
2025Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55
09-19 61° 84° 8537 6430 4464 3042 2247
09-20 58° 82° 8585 6468 4492 3062 2262
09-21 62° 85° 8636 6510 4524 3086 2281
09-22 66° 75° 8685 6548 4553 3106 2296
09-23 63° 81° 8735 6589 4583 3129 2313
09-24 65° 73° 8782 6626 4610 3148 2328
09-25 63° 74° 8829 6662 4636 3166 2341
09-26 56° 79° 8874 6698 4662 3184 2354
09-27 56° 85° 8922 6736 4690 3204 2369
09-28 58° 84° 8971 6775 4719 3225 2385
09-29 55° 82° 9018 6812 4746 3244 2399
09-30 49° 79° 9060 6843 4768 3258 2407
2025Lo
(F)		Hi
(F)		GDD
22		GDD
32		GDD
42		GDD
50		GDD
55

 

Latest Updates

February 16th, 2026Welcome to the 2026 GDD Tracking Season

Although Punxsutawney Phil saw his shadow predicting six more weeks of winter, GDDTracker will start counting on February 15. Spring is when GDDTracker receives the most attention for alerting turfgrass managers of optimal application timing windows for suppressing annual bluegrass seedheads and crabgrass preemergence applications. As spring turns to summer, there are several models that may be helpful throughout the season including the early season dollar spot DMI timer and the 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 successful 2026!


 

March 18th, 2024Timing crabgrass preemergence applications in spring

Don't miss this update from from Kevin Frank regarding timing of crabgrass preemergence herbicides.


 

 

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