Manhattan
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Growth Stage
Degree Days
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Color GDD °F Estimated Wheat Growth Stage
0 to 600 Seedling growth or tillering
600 to 800 Tillering or strongly upright tillers
800 to 1000 Strongly upright tillers or jointing (first node)
1000 to 1200 Jointing (first node) or approaching flag leaf emergence
1200 to 1400 Flag leaf emergence or boot
1400 to 1600 Boot or heading
1600 to 1800 Heading to flowering
1800 to 2000 Heading or flowering
2000 to 2200 Flowering or watery ripe
2200 to 2400 Watery ripe or milk
2400 to 2600 Milk or dough
2600 to 2800 Dough or kernels maturing
2800 to 3000 Dough or kernels maturing
More than 3000 Physiologically mature or approaching harvest

Data as of March 19 2024 05:40 (CDT) -- Click column headers to sort data

STATIONWHEATGDDNORMWHEATSTAGENORMWHEATGDDOBSWHEATSTAGEOBS
Ashland 8S405.0Seedling783.0Tillering
Ashland Bottoms263.0Seedling694.0Tillering
Belleville 2W225.0Seedling563.0Seedling
Bunker Hill 3NE249.0Seedling721.0Tillering
Butler352.0Seedling811.0Upright Tillers
Cherokee477.0Seedling1001.0Jointing
Cheyenne159.0Seedling483.0Seedling
Clay206.0Seedling625.0Tillering
Colby146.0Seedling516.0Seedling
Corning 2NW191.0Seedling695.0Tillering
Elmdale 1SE244.0Seedling773.0Tillering
Flickner Tech Farm306.0Seedling701.0Tillering
Garden City251.0Seedling640.0Tillering
Goodland Tech Farm0Seedling518.0Seedling
Gove 5SE157.0Seedling591.0Seedling
Grant254.0Seedling579.0Seedling
Gray279.0Seedling596.0Seedling
Gypsum232.0Seedling638.0Tillering
Hamilton233.0Seedling547.0Seedling
Harper455.0Seedling926.0Upright Tillers
Hays211.0Seedling643.0Tillering
Haysville 3SE373.0Seedling799.0Tillering
Hiawatha136.0Seedling567.0Seedling
Hill City213.0Seedling644.0Tillering
Hodgeman240.0Seedling688.0Tillering
Hoisington 4S246.0Seedling693.0Tillering
Howard 14NW333.0Seedling869.0Upright Tillers
Hutchinson 10SW262.0Seedling704.0Tillering
Jewell116.0Seedling654.0Tillering
Kinsley 6S0Seedling706.0Tillering
La Crosse190.0Seedling655.0Tillering
Lake City569.0Seedling859.0Upright Tillers
Lakin361.0Seedling614.0Tillering
Lane228.0Seedling617.0Tillering
Leoti193.0Seedling589.0Seedling
Little River 2W258.0Seedling761.0Tillering
Lorraine227.0Seedling648.0Tillering
Ludell 3N146.0Seedling537.0Seedling
Manhattan245.0Seedling732.0Tillering
McPherson 1S261.0Seedling766.0Tillering
Meade307.0Seedling613.0Tillering
Miami269.0Seedling860.0Upright Tillers
Mitchell196.0Seedling646.0Tillering
Moscow 10NW430.0Seedling662.0Tillering
Mount Hope 3NE GMD333.0Seedling790.0Tillering
Ness City210.0Seedling639.0Tillering
Norton 4SW119.0Seedling590.0Seedling
Oberlin 7NE153.0Seedling550.0Seedling
Olathe268.0Seedling790.0Tillering
Osborne128.0Seedling624.0Tillering
Oskaloosa 1SE219.0Seedling758.0Tillering
Ottawa 2SE246.0Seedling768.0Tillering
Overbrook302.0Seedling813.0Upright Tillers
Parsons387.0Seedling915.0Upright Tillers
Phillipsburg 1SW169.0Seedling562.0Seedling
Plainville 5N184.0Seedling651.0Tillering
Pretty Prairie GMD262.0Seedling793.0Tillering
Richfield414.0Seedling667.0Tillering
Rock Springs274.0Seedling723.0Tillering
Rocky Ford189.0Seedling677.0Tillering
Rossville 2SE210.0Seedling639.0Tillering
Roth Tech Farm251.0Seedling573.0Seedling
Russell Springs 3SW167.0Seedling560.0Seedling
Satanta410.0Seedling714.0Tillering
Scandia225.0Seedling531.0Seedling
Scott City 3SE195.0Seedling540.0Seedling
Sedan475.0Seedling999.0Upright Tillers
Sheridan197.0Seedling575.0Seedling
Sherman168.0Seedling544.0Seedling
Silver Lake 4E307.0Seedling706.0Tillering
Spearville360.0Seedling654.0Tillering
St John 1NW347.0Seedling718.0Tillering
Stanton417.0Seedling613.0Tillering
Sublette 1E517.0Seedling653.0Tillering
Tribune182.0Seedling533.0Seedling
Tribune 6NE184.0Seedling494.0Seedling
Uniontown 3NW331.0Seedling902.0Upright Tillers
Viola384.0Seedling838.0Upright Tillers
WaKeeney209.0Seedling665.0Tillering
Wallace186.0Seedling488.0Seedling
Washington154.0Seedling588.0Seedling
Welda 3E280.0Seedling876.0Upright Tillers
Willis Tech Farm251.0Seedling619.0Tillering
Woodson325.0Seedling879.0Upright Tillers
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Calculate Growing Degrees for a custom date range. Using . To change station, select from "Change Station" dropdown above. Available dates start at station's period of record (2010 for our oldest stations) and continue until yesterday.
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Observed GDD:

Norm GDD:

Growing Degrees =     Daily Max Air Temp + Daily Min Air Temp   - 32
2
Negative values are set to 0