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Crabgrass/Annual Bluegrass Preemergence Timer (GDD 32)
through Tue, Oct. 17. 2017

 
  

MI

       

Generously Supported By:



Tabular Data

Daily GDD accumulation for various base temperature models in 2016 & 2017

2017Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
02-19 33° 61° 90 43 11 0 0
02-20 37° 60° 116 59 17 0 0
02-21 47° 56° 146 79 27 2 0
02-22 44° 64° 178 101 39 6 0
02-23 39° 57° 204 117 46 6 0
02-24 32° 43° 220 123 46 6 0
02-25 21° 38° 227 123 46 6 0
02-26 18° 41° 235 123 46 6 0
02-27 29° 50° 252 130 46 6 0
02-28 37° 54° 275 144 49 6 0
02-29 n/a n/a n/a n/a n/a n/a n/a
03-01 26° 51° 292 151 49 6 0
2017Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
03-02 23° 30° 297 151 49 6 0
03-03 14° 25° 297 151 49 6 0
03-04 11° 32° 297 151 49 6 0
03-05 25° 48° 311 155 49 6 0
03-06 45° 58° 340 174 58 7 0
03-07 39° 59° 368 192 66 7 0
03-08 35° 44° 385 200 66 7 0
03-09 30° 39° 398 202 66 7 0
03-10 15° 30° 398 202 66 7 0
03-11 15° 19° 398 202 66 7 0
03-12 14° 29° 398 202 66 7 0
03-13 18° 26° 398 202 66 7 0
2017Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
03-14 14° 25° 398 202 66 7 0
03-15 14° 31° 399 202 66 7 0
03-16 14° 40° 404 202 66 7 0
03-17 22° 34° 410 202 66 7 0
03-18 33° 39° 424 207 66 7 0
03-19 33° 47° 442 215 66 7 0
03-20 37° 57° 467 230 71 7 0
03-21 26° 48° 483 235 71 7 0
03-22 15° 36° 486 235 71 7 0
03-23 22° 46° 498 237 71 7 0
03-24 39° 66° 529 258 81 10 0
03-25 36° 43° 547 266 81 10 0
2017Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
03-26 38° 51° 569 278 84 10 0
03-27 41° 50° 593 292 88 10 0
03-28 40° 51° 617 306 91 10 0
03-29 31° 53° 637 316 91 10 0
03-30 34° 39° 651 321 91 10 0
03-31 34° 38° 666 325 91 10 0
04-01 31° 59° 689 338 94 10 0
04-02 32° 58° 712 351 97 10 0
04-03 46° 53° 739 368 105 10 0
04-04 39° 49° 761 380 106 10 0
04-05 33° 43° 777 386 106 10 0
04-06 34° 41° 793 392 106 10 0
2017Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
04-07 34° 54° 815 404 109 10 0
04-08 29° 64° 839 419 113 10 0
04-09 51° 77° 882 451 135 24 9
04-10 57° 77° 927 486 161 41 21
04-11 42° 55° 954 503 167 41 21
04-12 41° 58° 981 520 175 41 21
04-13 44° 48° 1005 534 179 41 21
04-14 40° 65° 1036 555 189 44 21
04-15 50° 81° 1079 588 213 59 32
04-16 54° 71° 1120 619 233 72 39
04-17 41° 65° 1151 640 244 75 39
04-18 42° 71° 1185 664 259 81 41
2017Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
04-19 55° 71° 1226 695 280 94 49
04-20 46° 61° 1257 716 291 97 49
04-21 42° 50° 1281 730 295 97 49
04-22 35° 63° 1308 747 302 97 49
04-23 35° 69° 1338 767 312 99 49
04-24 41° 72° 1372 792 326 106 50
04-25 49° 75° 1412 821 346 118 57
04-26 59° 80° 1460 859 373 137 71
04-27 43° 65° 1492 881 386 141 71
04-28 42° 61° 1522 901 395 143 71
04-29 44° 56° 1550 919 403 143 71
04-30 40° 43° 1569 929 403 143 71
2017Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
05-01 42° 60° 1598 947 412 144 71
05-02 40° 48° 1620 959 414 144 71
05-03 32° 59° 1644 973 418 144 71
05-04 44° 50° 1669 988 423 144 71
05-05 39° 61° 1697 1006 430 144 71
05-06 38° 60° 1724 1023 438 144 71
05-07 35° 53° 1746 1035 440 144 71
05-08 29° 57° 1767 1046 441 144 71
05-09 31° 63° 1792 1062 446 144 71
05-10 43° 70° 1827 1086 461 150 73
05-11 47° 67° 1862 1111 476 157 75
05-12 45° 70° 1897 1136 491 165 77
2017Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
05-13 46° 73° 1935 1164 509 174 82
05-14 52° 72° 1975 1194 528 186 89
05-15 46° 75° 2013 1222 547 197 94
05-16 59° 77° 2059 1258 573 215 107
05-17 70° 85° 2115 1304 609 242 130
05-18 49° 75° 2155 1334 629 254 137
05-19 41° 53° 2180 1349 634 254 137
05-20 46° 62° 2212 1371 646 258 137
05-21 52° 68° 2250 1399 664 268 142
05-22 49° 65° 2285 1424 679 275 144
05-23 57° 68° 2326 1455 700 288 152
05-24 56° 67° 2365 1485 719 300 158
2017Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
05-25 56° 65° 2404 1513 738 310 164
05-26 51° 70° 2443 1542 756 321 170
05-27 56° 77° 2487 1576 781 337 181
05-28 58° 75° 2532 1611 805 354 193
05-29 52° 72° 2572 1641 826 366 200
05-30 51° 68° 2609 1669 843 376 204
05-31 50° 71° 2648 1697 862 386 210
06-01 50° 73° 2688 1727 882 398 217
06-02 50° 80° 2731 1760 905 413 227
06-03 55° 78° 2776 1795 930 430 239
06-04 64° 84° 2828 1837 962 454 258
06-05 57° 74° 2872 1871 986 470 269
2017Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
06-06 50° 76° 2913 1902 1007 483 277
06-07 50° 77° 2954 1933 1028 497 285
06-08 52° 80° 2998 1967 1052 512 296
06-09 61° 82° 3047 2006 1081 534 312
06-10 57° 88° 3098 2047 1112 556 330
06-11 72° 89° 3157 2096 1150 587 356
06-12 73° 93° 3217 2147 1191 620 384
06-13 70° 88° 3275 2194 1228 649 408
06-14 65° 90° 3330 2239 1264 677 430
06-15 68° 85° 3385 2284 1299 703 452
06-16 66° 82° 3437 2326 1331 727 471
06-17 66° 77° 3486 2366 1360 749 487
2017Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
06-18 67° 76° 3536 2405 1390 770 504
06-19 59° 75° 3581 2440 1415 787 516
06-20 57° 72° 3623 2472 1437 801 525
06-21 50° 76° 3664 2503 1458 814 533
06-22 60° 86° 3715 2544 1489 837 551
06-23 67° 78° 3765 2584 1519 859 568
06-24 59° 72° 3808 2618 1542 875 579
06-25 53° 67° 3847 2646 1561 885 584
06-26 52° 67° 3884 2673 1578 894 588
06-27 47° 72° 3921 2700 1595 904 592
06-28 52° 75° 3963 2732 1617 917 601
06-29 62° 80° 4012 2771 1646 938 617
2017Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
06-30 63° 80° 4061 2811 1675 960 634
07-01 67° 81° 4113 2852 1707 984 652
07-02 61° 77° 4160 2889 1734 1003 666
07-03 59° 79° 4208 2927 1761 1022 681
07-04 57° 82° 4255 2964 1789 1041 695
07-05 59° 85° 4305 3004 1819 1063 712
07-06 62° 88° 4358 3047 1852 1088 732
07-07 64° 84° 4410 3089 1884 1113 751
07-08 58° 76° 4455 3125 1909 1130 763
07-09 54° 80° 4501 3160 1935 1147 776
07-10 66° 77° 4550 3200 1964 1169 792
07-11 62° 87° 4603 3242 1997 1193 812
2017Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
07-12 69° 81° 4656 3285 2030 1218 832
07-13 69° 81° 4709 3328 2063 1243 852
07-14 63° 74° 4755 3365 2089 1262 865
07-15 55° 78° 4800 3399 2114 1278 877
07-16 64° 79° 4850 3439 2144 1300 894
07-17 58° 79° 4896 3475 2170 1318 907
07-18 59° 84° 4946 3515 2199 1340 924
07-19 65° 88° 5000 3560 2234 1367 945
07-20 69° 83° 5055 3604 2269 1393 967
07-21 62° 87° 5107 3646 2301 1418 986
07-22 70° 80° 5160 3689 2334 1442 1006
07-23 68° 83° 5214 3733 2367 1468 1027
2017Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
07-24 61° 77° 5261 3770 2394 1487 1041
07-25 55° 81° 5306 3805 2420 1504 1053
07-26 62° 84° 5357 3846 2451 1527 1071
07-27 68° 83° 5410 3889 2484 1553 1091
07-28 62° 80° 5459 3928 2513 1573 1107
07-29 52° 82° 5504 3963 2538 1590 1119
07-30 56° 84° 5552 4001 2566 1610 1134
07-31 54° 86° 5600 4039 2594 1630 1149
08-01 57° 84° 5649 4078 2623 1651 1165
08-02 62° 86° 5701 4120 2654 1675 1184
08-03 63° 80° 5750 4159 2684 1696 1200
08-04 58° 67° 5791 4190 2705 1709 1208
2017Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
08-05 51° 74° 5831 4220 2725 1722 1215
08-06 55° 76° 5875 4254 2749 1737 1226
08-07 59° 76° 5920 4290 2774 1755 1238
08-08 52° 81° 5965 4324 2799 1771 1250
08-09 56° 82° 6012 4361 2826 1790 1264
08-10 59° 82° 6060 4399 2854 1811 1279
08-11 61° 75° 6106 4435 2880 1828 1292
08-12 61° 76° 6153 4472 2907 1847 1306
08-13 50° 78° 6195 4504 2929 1861 1315
08-14 61° 81° 6244 4543 2958 1882 1331
08-15 61° 82° 6294 4583 2988 1904 1348
08-16 59° 85° 6344 4623 3018 1926 1365
2017Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
08-17 68° 79° 6395 4665 3049 1950 1383
08-18 64° 72° 6441 4700 3075 1967 1396
08-19 60° 80° 6489 4738 3103 1987 1411
08-20 55° 83° 6536 4775 3130 2006 1425
08-21 65° 84° 6589 4818 3163 2031 1445
08-22 60° 75° 6634 4853 3188 2048 1457
08-23 55° 72° 6676 4885 3209 2062 1466
08-24 49° 67° 6711 4910 3225 2069 1468
08-25 46° 70° 6747 4936 3241 2078 1471
08-26 46° 74° 6785 4964 3259 2087 1476
08-27 58° 73° 6828 4998 3282 2103 1487
08-28 59° 70° 6871 5030 3305 2117 1496
2017Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
08-29 55° 76° 6914 5064 3328 2133 1507
08-30 53° 79° 6958 5097 3352 2149 1517
08-31 56° 71° 6999 5129 3373 2162 1525
09-01 45° 69° 7034 5153 3388 2168 1527
09-02 42° 74° 7070 5179 3404 2176 1530
09-03 53° 78° 7113 5213 3427 2192 1540
09-04 56° 76° 7157 5247 3451 2208 1551
09-05 49° 65° 7193 5272 3467 2215 1554
09-06 41° 63° 7223 5292 3477 2217 1554
09-07 45° 58° 7252 5312 3486 2219 1554
09-08 48° 67° 7288 5338 3502 2227 1557
09-09 43° 67° 7321 5360 3515 2231 1557
2017Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
09-10 42° 68° 7354 5383 3528 2236 1557
09-11 42° 73° 7390 5409 3543 2244 1559
09-12 44° 80° 7430 5439 3564 2256 1567
09-13 48° 76° 7470 5469 3584 2268 1574
09-14 57° 77° 7515 5504 3608 2285 1585
09-15 52° 83° 7560 5539 3634 2302 1598
09-16 56° 85° 7608 5577 3662 2322 1613
09-17 63° 88° 7661 5620 3695 2347 1633
09-18 57° 77° 7706 5655 3720 2365 1645
09-19 59° 74° 7751 5690 3745 2381 1656
09-20 66° 87° 7805 5734 3779 2407 1678
09-21 69° 91° 7863 5782 3817 2437 1703
2017Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
09-22 64° 93° 7920 5829 3853 2466 1726
09-23 66° 93° 7977 5876 3891 2495 1751
09-24 62° 92° 8032 5921 3926 2522 1773
09-25 62° 88° 8085 5964 3959 2547 1793
09-26 60° 89° 8138 6007 3991 2572 1812
09-27 55° 72° 8179 6038 4013 2585 1821
09-28 51° 68° 8216 6066 4030 2595 1825
09-29 51° 65° 8252 6092 4046 2603 1828
09-30 40° 64° 8282 6112 4056 2605 1828
2016Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
02-19 35° 61° 31 16 6 0 0
02-20 40° 55° 57 31 11 0 0
02-21 32° 46° 74 38 11 0 0
02-22 30° 41° 87 42 11 0 0
02-23 30° 46° 103 48 11 0 0
02-24 28° 34° 112 48 11 0 0
02-25 24° 32° 118 48 11 0 0
02-26 13° 31° 118 48 11 0 0
02-27 26° 41° 130 49 11 0 0
02-28 33° 51° 150 60 12 0 0
02-29 23° 41° 160 60 12 0 0
03-01 19° 23° 160 60 12 0 0
2016Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
03-02 -1° 27° 160 60 12 0 0
03-03 -2° 29° 160 60 12 0 0
03-04 32° 160 60 12 0 0
03-05 24° 34° 167 60 12 0 0
03-06 11° 38° 170 60 12 0 0
03-07 39° 55° 194 74 16 0 0
03-08 46° 69° 230 100 32 8 3
03-09 52° 62° 265 125 47 15 5
03-10 40° 52° 289 139 51 15 5
03-11 30° 56° 310 150 52 15 5
03-12 28° 61° 332 162 54 15 5
03-13 45° 48° 357 176 59 15 5
2016Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
03-14 44° 51° 382 192 64 15 5
03-15 37° 54° 406 206 68 15 5
03-16 44° 50° 431 221 73 15 5
03-17 35° 46° 449 229 73 15 5
03-18 31° 45° 465 235 73 15 5
03-19 29° 42° 479 239 73 15 5
03-20 21° 46° 490 240 73 15 5
03-21 27° 46° 505 245 73 15 5
03-22 33° 55° 527 257 75 15 5
03-23 31° 46° 544 264 75 15 5
03-24 29° 35° 554 264 75 15 5
03-25 26° 44° 568 268 75 15 5
2016Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
03-26 30° 55° 588 278 76 15 5
03-27 35° 70° 619 299 86 17 5
03-28 34° 47° 637 307 86 17 5
03-29 29° 54° 657 317 86 17 5
03-30 37° 58° 682 332 92 17 5
03-31 42° 68° 715 355 105 22 5
04-01 36° 50° 736 366 106 22 5
04-02 26° 36° 745 366 106 22 5
04-03 24° 52° 761 372 106 22 5
04-04 28° 33° 770 372 106 22 5
04-05 17° 44° 778 372 106 22 5
04-06 33° 43° 794 378 106 22 5
2016Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
04-07 33° 39° 808 382 106 22 5
04-08 28° 39° 820 384 106 22 5
04-09 18° 35° 824 384 106 22 5
04-10 19° 38° 831 384 106 22 5
04-11 34° 50° 851 394 106 22 5
04-12 31° 47° 868 401 106 22 5
04-13 31° 54° 888 411 106 22 5
04-14 31° 61° 913 425 110 22 5
04-15 34° 70° 943 445 120 24 5
04-16 41° 79° 981 473 138 34 10
04-17 43° 78° 1019 502 157 45 15
04-18 44° 83° 1061 533 178 58 24
2016Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
04-19 47° 62° 1093 556 191 63 24
04-20 48° 68° 1129 581 207 71 27
04-21 49° 63° 1163 605 220 76 28
04-22 48° 59° 1194 626 232 80 28
04-23 34° 60° 1219 641 236 80 28
04-24 38° 68° 1250 662 247 83 28
04-25 48° 77° 1290 693 268 95 35
04-26 40° 50° 1313 706 271 95 35
04-27 33° 60° 1338 721 276 95 35
04-28 37° 49° 1359 732 277 95 35
04-29 39° 52° 1383 745 281 95 35
04-30 36° 55° 1407 759 284 95 35
2016Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
05-01 43° 51° 1432 774 289 95 35
05-02 42° 58° 1460 792 298 96 35
05-03 34° 68° 1489 812 307 97 35
05-04 41° 54° 1514 827 312 97 35
05-05 43° 68° 1548 850 325 102 36
05-06 38° 76° 1582 875 340 109 37
05-07 51° 70° 1621 903 358 119 43
05-08 39° 67° 1652 924 369 122 43
05-09 39° 69° 1684 946 381 126 43
05-10 48° 55° 1713 966 391 128 43
05-11 49° 72° 1752 995 410 138 48
05-12 56° 66° 1791 1024 429 149 54
2016Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
05-13 49° 65° 1826 1049 444 157 56
05-14 40° 49° 1848 1061 446 157 56
05-15 34° 50° 1868 1071 446 157 56
05-16 38° 68° 1899 1092 457 160 56
05-17 46° 65° 1933 1115 471 165 57
05-18 42° 67° 1965 1138 483 170 57
05-19 37° 72° 1997 1160 495 174 57
05-20 42° 75° 2034 1186 512 182 60
05-21 52° 77° 2077 1219 535 197 70
05-22 47° 76° 2116 1249 554 209 77
05-23 43° 82° 2157 1280 575 221 84
05-24 48° 86° 2202 1315 600 238 96
2016Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
05-25 61° 88° 2255 1357 633 263 116
05-26 65° 84° 2307 1400 665 288 136
05-27 61° 86° 2359 1441 697 311 154
05-28 67° 85° 2413 1485 731 337 175
05-29 66° 81° 2464 1527 763 361 194
05-30 58° 84° 2513 1566 792 382 210
05-31 52° 85° 2560 1603 818 401 224
06-01 62° 74° 2606 1639 844 419 237
06-02 56° 77° 2651 1674 869 436 249
06-03 49° 81° 2694 1707 892 451 259
06-04 59° 85° 2744 1747 922 473 276
06-05 62° 70° 2788 1781 946 489 287
2016Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
06-06 53° 77° 2831 1814 969 504 297
06-07 52° 61° 2866 1838 984 510 298
06-08 45° 70° 2901 1864 999 518 301
06-09 42° 70° 2935 1888 1013 524 302
06-10 57° 90° 2986 1929 1045 547 320
06-11 69° 90° 3044 1977 1082 577 345
06-12 54° 80° 3089 2012 1108 594 357
06-13 53° 76° 3132 2045 1130 609 367
06-14 60° 80° 3180 2083 1158 629 382
06-15 61° 86° 3232 2125 1190 652 400
06-16 64° 73° 3278 2161 1217 671 414
06-17 56° 89° 3329 2202 1247 694 432
2016Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
06-18 56° 92° 3381 2243 1279 717 450
06-19 59° 92° 3434 2287 1312 743 471
06-20 66° 88° 3490 2332 1348 770 493
06-21 54° 81° 3535 2368 1373 788 506
06-22 55° 84° 3583 2406 1401 807 520
06-23 60° 79° 3631 2443 1429 827 535
06-24 54° 86° 3679 2481 1457 847 550
06-25 56° 92° 3731 2524 1489 871 569
06-26 73° 85° 3788 2571 1526 901 594
06-27 65° 87° 3842 2615 1560 927 615
06-28 57° 74° 3886 2648 1584 942 625
06-29 47° 81° 3928 2680 1606 956 634
2016Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
06-30 47° 82° 3970 2713 1628 971 644
07-01 56° 73° 4013 2745 1651 985 653
07-02 48° 78° 4054 2777 1672 999 662
07-03 50° 83° 4098 2811 1696 1015 673
07-04 51° 81° 4143 2845 1721 1031 684
07-05 63° 86° 4195 2888 1753 1056 704
07-06 66° 90° 4251 2934 1789 1084 727
07-07 62° 87° 4304 2977 1822 1108 746
07-08 65° 89° 4359 3022 1857 1136 769
07-09 64° 78° 4408 3061 1886 1157 785
07-10 53° 84° 4455 3098 1913 1176 799
07-11 64° 87° 4508 3141 1946 1201 819
2016Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
07-12 71° 91° 4568 3190 1986 1232 845
07-13 69° 89° 4625 3237 2023 1261 869
07-14 70° 86° 4680 3283 2058 1289 892
07-15 61° 74° 4726 3318 2084 1306 904
07-16 56° 78° 4771 3354 2109 1323 916
07-17 54° 85° 4818 3391 2136 1343 931
07-18 70° 87° 4875 3437 2173 1371 954
07-19 61° 87° 4927 3480 2205 1396 974
07-20 60° 93° 4981 3524 2239 1422 995
07-21 70° 88° 5038 3571 2276 1451 1019
07-22 72° 89° 5097 3620 2315 1482 1045
07-23 70° 94° 5157 3670 2355 1514 1072
2016Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
07-24 70° 87° 5214 3716 2392 1542 1095
07-25 70° 87° 5270 3763 2428 1570 1118
07-26 61° 88° 5323 3805 2461 1595 1138
07-27 63° 88° 5376 3849 2494 1621 1159
07-28 65° 83° 5428 3891 2526 1645 1178
07-29 65° 76° 5476 3929 2555 1665 1193
07-30 63° 74° 5523 3966 2581 1683 1206
07-31 64° 77° 5571 4004 2610 1704 1222
08-01 59° 84° 5621 4044 2639 1726 1239
08-02 60° 87° 5673 4085 2671 1749 1257
08-03 61° 91° 5727 4130 2705 1776 1279
08-04 65° 93° 5784 4177 2742 1804 1302
2016Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
08-05 68° 87° 5839 4222 2778 1832 1325
08-06 59° 82° 5888 4261 2806 1853 1341
08-07 56° 81° 5934 4297 2833 1871 1354
08-08 56° 84° 5983 4335 2861 1891 1369
08-09 55° 89° 6033 4375 2891 1913 1386
08-10 60° 92° 6086 4419 2925 1939 1407
08-11 68° 93° 6145 4468 2963 1970 1433
08-12 72° 86° 6202 4515 3000 1999 1457
08-13 70° 83° 6257 4559 3035 2025 1478
08-14 66° 84° 6310 4603 3068 2050 1498
08-15 60° 82° 6359 4641 3097 2071 1514
08-16 68° 83° 6412 4685 3130 2097 1535
2016Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
08-17 65° 84° 6465 4728 3163 2122 1555
08-18 60° 87° 6516 4769 3195 2145 1573
08-19 66° 83° 6569 4812 3227 2170 1593
08-20 67° 80° 6621 4853 3259 2193 1611
08-21 60° 72° 6665 4888 3283 2209 1622
08-22 51° 76° 6706 4919 3304 2223 1631
08-23 54° 59° 6741 4944 3319 2229 1632
08-24 72° 77° 6793 4986 3351 2254 1652
08-25 66° 80° 6845 5027 3383 2277 1670
08-26 61° 78° 6892 5065 3410 2297 1685
08-27 62° 67° 6934 5097 3432 2311 1694
08-28 69° 83° 6988 5141 3466 2337 1715
2016Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
08-29 64° 83° 7039 5182 3497 2360 1733
08-30 66° 82° 7092 5224 3530 2384 1752
08-31 62° 76° 7139 5261 3557 2403 1766
09-01 58° 73° 7182 5295 3580 2419 1777
09-02 51° 74° 7223 5325 3601 2431 1784
09-03 51° 75° 7264 5356 3622 2444 1792
09-04 51° 78° 7306 5389 3644 2459 1802
09-05 57° 85° 7355 5428 3673 2480 1818
09-06 71° 88° 7413 5476 3711 2510 1843
09-07 71° 81° 7467 5519 3745 2535 1863
09-08 68° 77° 7517 5560 3775 2558 1881
09-09 64° 80° 7567 5600 3805 2580 1898
2016Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
09-10 59° 74° 7612 5634 3830 2596 1909
09-11 50° 72° 7651 5664 3849 2607 1915
09-12 52° 76° 7693 5695 3871 2621 1924
09-13 56° 79° 7738 5731 3896 2639 1937
09-14 57° 73° 7781 5764 3919 2654 1947
09-15 50° 73° 7821 5793 3939 2665 1953
09-16 52° 80° 7865 5828 3963 2682 1965
09-17 64° 76° 7913 5866 3991 2702 1980
09-18 56° 75° 7956 5899 4014 2717 1990
09-19 52° 82° 8002 5934 4040 2734 2002
09-20 59° 80° 8049 5972 4067 2754 2017
09-21 56° 76° 8093 6006 4091 2770 2028
2016Lo
(F)
Hi
(F)
GDD
22
GDD
32
GDD
42
GDD
50
GDD
55
09-22 61° 73° 8138 6041 4116 2787 2040
09-23 59° 69° 8180 6073 4138 2801 2049
09-24 51° 68° 8218 6101 4156 2810 2053
09-25 50° 74° 8258 6130 4176 2822 2060
09-26 59° 65° 8297 6160 4196 2834 2067
09-27 50° 59° 8330 6182 4208 2838 2067
09-28 50° 63° 8364 6207 4223 2845 2069
09-29 55° 62° 8401 6234 4239 2854 2072
09-30 58° 61° 8439 6262 4257 2863 2077

 

Latest Updates

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.