Chilling and Growing Degree Hour Information for Various Locations Around the State
Choose an ending year: Current 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005
October 1, 2020 through February 15, 2021
Location | Total Std. chill hours | Total Mod. chill hours | Last Data (Days) |
---|---|---|---|
Auburn University Turf Unit (Auburn) | 724 (617 last year) | 724 (440 last year) | 02/15/21 (117) |
Black Belt REC (Marion Junction) | 945 (786 last year) | 890 (527 last year) | 02/15/21 (132) |
Brewton Ag Research Unit (Brewton) | 778 (678 last year) | 743 (444 last year) | 02/15/21 (132) |
Chilton County REC (Thorsby) | 1009 (778 last year) | 951 (514 last year) | 02/15/21 (135) |
Durbin Farms (Clanton) | 37 (734 last year) | 0 (506 last year) | 11/16/20 (40) |
EV Smith Research Center HQ (Shorter) | 831 (645 last year) | 764 (389 last year) | 02/15/21 (136) |
Gulf Coast Station REC (Fairhope) | 577 (428 last year) | 566 (294 last year) | 02/15/21 (131) |
Sand Mountain REC (Crossville) | 1261 (786 last year) | 1224 (454 last year) | 02/15/21 (89) |
Tennessee Valley REC (Belle Mina) | 1270 (893 last year) | 1236 (544 last year) | 02/15/21 (89) |
Upper Coastal Plain Substation (Winfield) | 1360 (1084 last year) | 1176 (724 last year) | 02/15/21 (138) |
Winfred Thomas Ag Research Unit (Hazel Green) | 692 (1158 last year) | 497 (798 last year) | 12/30/20 (91) |
Wiregrass REC (Headland) | 622 (507 last year) | 615 (377 last year) | 02/15/21 (116) |
Chill totals for previous years do not include data past February 15.
Comparison data is for the same month and day last year.
The (Days) value after the date indicates the number of days used in calculations
GDH Values Descriptions
Range (GDH cumulations) | Description |
---|---|
5000-6000 | Full Bud Swell/First Green |
6000-8000 | Pre-Pink (Calyx green/red) |
8000-9200 | Pink Bud |
9200-10400 | 50% Bloom |
Auburn University Turf Unit (Auburn) | ||||
---|---|---|---|---|
Chill Requirement | Date Chilling Met | GDH Total | Date Modified Chilling Met | Chilling Hours Modified |
450 | 01/12/21 | 8186.4 | 01/12/21 | 8186.4 |
550 | 01/18/21 | 7804.8 | 01/18/21 | 7804.8 |
650 | 02/02/21 | 3361.2 | 02/02/21 | 3361.2 |
750 | Not met | 0 | Not met | 0 |
850 | Not met | 0 | Not met | 0 |
950 | Not met | 0 | Not met | 0 |
1050 | Not met | 0 | Not met | 0 |
Black Belt REC (Marion Junction) | ||||
---|---|---|---|---|
Chill Requirement | Date Chilling Met | GDH Total | Date Modified Chilling Met | Chilling Hours Modified |
450 | 01/06/21 | 6752.4 | 01/09/21 | 6516 |
550 | 01/11/21 | 6516 | 01/14/21 | 6511.2 |
650 | 01/17/21 | 6297.6 | 01/29/21 | 2685.6 |
750 | 02/01/21 | 1934.4 | 02/06/21 | 1542 |
850 | 02/08/21 | 1430.4 | 02/14/21 | 15.6 |
950 | Not met | 0 | Not met | 0 |
1050 | Not met | 0 | Not met | 0 |
Brewton Ag Research Unit (Brewton) | ||||
---|---|---|---|---|
Chill Requirement | Date Chilling Met | GDH Total | Date Modified Chilling Met | Chilling Hours Modified |
450 | 01/10/21 | 8889.6 | 01/12/21 | 8838 |
550 | 01/16/21 | 8455.2 | 01/19/21 | 8263.2 |
650 | 02/01/21 | 3318 | 02/03/21 | 3147.6 |
750 | 02/14/21 | 135.6 | Not met | 0 |
850 | Not met | 0 | Not met | 0 |
950 | Not met | 0 | Not met | 0 |
1050 | Not met | 0 | Not met | 0 |
Chilton County REC (Thorsby) | ||||
---|---|---|---|---|
Chill Requirement | Date Chilling Met | GDH Total | Date Modified Chilling Met | Chilling Hours Modified |
450 | 01/05/21 | 5790 | 01/08/21 | 5472 |
550 | 01/10/21 | 5472 | 01/12/21 | 5467.2 |
650 | 01/14/21 | 5467.2 | 01/18/21 | 5290.8 |
750 | 01/28/21 | 2475.6 | 02/01/21 | 1819.2 |
850 | 02/04/21 | 1804.8 | 02/07/21 | 1533.6 |
950 | 02/13/21 | 26.4 | 02/15/21 | 0 |
1050 | Not met | 0 | Not met | 0 |
Durbin Farms (Clanton) | ||||
---|---|---|---|---|
Chill Requirement | Date Chilling Met | GDH Total | Date Modified Chilling Met | Chilling Hours Modified |
450 | Not met | 0 | Not met | 0 |
550 | Not met | 0 | Not met | 0 |
650 | Not met | 0 | Not met | 0 |
750 | Not met | 0 | Not met | 0 |
850 | Not met | 0 | Not met | 0 |
950 | Not met | 0 | Not met | 0 |
1050 | Not met | 0 | Not met | 0 |
EV Smith Research Center HQ (Shorter) | ||||
---|---|---|---|---|
Chill Requirement | Date Chilling Met | GDH Total | Date Modified Chilling Met | Chilling Hours Modified |
450 | 01/07/21 | 8497.2 | 01/10/21 | 8419.2 |
550 | 01/12/21 | 8358 | 01/16/21 | 8025.6 |
650 | 01/18/21 | 8019.6 | 02/01/21 | 3462 |
750 | 02/02/21 | 3393.6 | 02/08/21 | 2665.2 |
850 | Not met | 0 | Not met | 0 |
950 | Not met | 0 | Not met | 0 |
1050 | Not met | 0 | Not met | 0 |
Gulf Coast Station REC (Fairhope) | ||||
---|---|---|---|---|
Chill Requirement | Date Chilling Met | GDH Total | Date Modified Chilling Met | Chilling Hours Modified |
450 | 01/30/21 | 4729.2 | 02/01/21 | 3924 |
550 | 02/14/21 | 124.8 | 02/15/21 | 0 |
650 | Not met | 0 | Not met | 0 |
750 | Not met | 0 | Not met | 0 |
850 | Not met | 0 | Not met | 0 |
950 | Not met | 0 | Not met | 0 |
1050 | Not met | 0 | Not met | 0 |
Sand Mountain REC (Crossville) | ||||
---|---|---|---|---|
Chill Requirement | Date Chilling Met | GDH Total | Date Modified Chilling Met | Chilling Hours Modified |
450 | 12/26/20 | 4304.4 | 12/28/20 | 4267.2 |
550 | 01/04/21 | 2666.4 | 01/07/21 | 2598 |
650 | 01/09/21 | 2598 | 01/11/21 | 2598 |
750 | 01/13/21 | 2598 | 01/16/21 | 2547.6 |
850 | 01/19/21 | 2500.8 | 01/22/21 | 2272.8 |
950 | 01/28/21 | 892.8 | 01/31/21 | 850.8 |
1050 | 02/03/21 | 626.4 | 02/05/21 | 626.4 |
Tennessee Valley REC (Belle Mina) | ||||
---|---|---|---|---|
Chill Requirement | Date Chilling Met | GDH Total | Date Modified Chilling Met | Chilling Hours Modified |
450 | 12/25/20 | 5235.6 | 12/26/20 | 5235.6 |
550 | 01/04/21 | 3348 | 01/06/21 | 3229.2 |
650 | 01/09/21 | 3199.2 | 01/10/21 | 3199.2 |
750 | 01/13/21 | 3199.2 | 01/16/21 | 3052.8 |
850 | 01/20/21 | 2852.4 | 01/22/21 | 2728.8 |
950 | 01/28/21 | 1230 | 01/31/21 | 1150.8 |
1050 | 02/03/21 | 878.4 | 02/05/21 | 852 |
Upper Coastal Plain Substation (Winfield) | ||||
---|---|---|---|---|
Chill Requirement | Date Chilling Met | GDH Total | Date Modified Chilling Met | Chilling Hours Modified |
450 | 12/15/20 | 6598.8 | 12/26/20 | 5791.2 |
550 | 12/22/20 | 6158.4 | 01/06/21 | 3736.8 |
650 | 12/28/20 | 5742 | 01/10/21 | 3676.8 |
750 | 01/07/21 | 3693.6 | 01/16/21 | 3630 |
850 | 01/11/21 | 3676.8 | 01/23/21 | 3117.6 |
950 | 01/16/21 | 3630 | 02/02/21 | 1123.2 |
1050 | 01/27/21 | 1738.8 | 02/08/21 | 1062 |
Winfred Thomas Ag Research Unit (Hazel Green) | ||||
---|---|---|---|---|
Chill Requirement | Date Chilling Met | GDH Total | Date Modified Chilling Met | Chilling Hours Modified |
450 | 12/14/20 | 1162.8 | 12/25/20 | 606 |
550 | 12/19/20 | 1150.8 | Not met | 0 |
650 | 12/26/20 | 606 | Not met | 0 |
750 | Not met | 0 | Not met | 0 |
850 | Not met | 0 | Not met | 0 |
950 | Not met | 0 | Not met | 0 |
1050 | Not met | 0 | Not met | 0 |
Wiregrass REC (Headland) | ||||
---|---|---|---|---|
Chill Requirement | Date Chilling Met | GDH Total | Date Modified Chilling Met | Chilling Hours Modified |
450 | 01/17/21 | 9022.8 | 01/18/21 | 8961.6 |
550 | 02/03/21 | 3819.6 | 02/03/21 | 3819.6 |
650 | Not met | 0 | Not met | 0 |
750 | Not met | 0 | Not met | 0 |
850 | Not met | 0 | Not met | 0 |
950 | Not met | 0 | Not met | 0 |
1050 | Not met | 0 | Not met | 0 |