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 April 03 2025 06:20 (CDT) -- Click column headers to sort data

STATIONWHEATGDDNORMWHEATSTAGENORMWHEATGDDOBSWHEATSTAGEOBS
Ashland 8S668.0Tillering894.0Upright Tillers
Ashland Bottoms508.0Seedling807.0Upright Tillers
Belleville 2W452.0Seedling716.0Tillering
Bennington 3N470.0Seedling789.0Tillering
Bentley 2S GMD635.0TilleringNewNew
Bunker Hill 3NE485.0Seedling846.0Upright Tillers
Butler611.0Tillering905.0Upright Tillers
Cherokee748.0Tillering1065.0Jointing
Cheyenne353.0Seedling617.0Tillering
Clay430.0Seedling747.0Tillering
Colby332.0Seedling676.0Tillering
Corning 2NW405.0Seedling763.0Tillering
Elmdale 1SE477.0Seedling884.0Upright Tillers
Flickner Tech Farm553.0Seedling813.0Upright Tillers
Garden City478.0Seedling826.0Upright Tillers
Goodland Tech Farm356.0Seedling664.0Tillering
Gove 5SE352.0Seedling752.0Tillering
Grant473.0Seedling753.0Tillering
Gray517.0Seedling722.0Tillering
Gypsum451.0Seedling745.0Tillering
Hamilton451.0Seedling746.0Tillering
Harper722.0Tillering1000.0Jointing
Hays442.0Seedling796.0Tillering
Haysville 3SE635.0Tillering917.0Upright Tillers
Hiawatha334.0Seedling659.0Tillering
Hill City430.0Seedling770.0Tillering
Hodgeman462.0Seedling847.0Upright Tillers
Hoisington 4S479.0Seedling821.0Upright Tillers
Howard 14NW586.0Seedling942.0Upright Tillers
Hutchinson 10SW497.0Seedling862.0Upright Tillers
Hutchinson 1NW GMD497.0Seedling887.0Upright Tillers
Jewell291.0Seedling783.0Tillering
Kinsley 6S493.0Seedling834.0Upright Tillers
La Crosse402.0Seedling776.0Tillering
Lake City861.0Upright Tillers998.0Upright Tillers
Lakin599.0Seedling807.0Upright Tillers
Lane444.0Seedling780.0Tillering
Larned 6SW541.0Seedling794.0Tillering
Lebanon 2SW361.0Seedling675.0Tillering
Leoti386.0Seedling752.0Tillering
Little River 2W492.0Seedling836.0Upright Tillers
Lorraine455.0Seedling769.0Tillering
Ludell 3N339.0Seedling722.0Tillering
Manhattan479.0Seedling837.0Upright Tillers
McPherson 1S512.0Seedling833.0Upright Tillers
Meade541.0Seedling785.0Tillering
Miami502.0Seedling910.0Upright Tillers
Mitchell417.0Seedling729.0Tillering
Moscow 10NW678.0Tillering870.0Upright Tillers
Mount Hope 3NE GMD589.0Seedling883.0Upright Tillers
Ness City426.0Seedling796.0Tillering
Norton 4SW301.0Seedling699.0Tillering
Oberlin 7NE349.0Seedling692.0Tillering
Olathe501.0Seedling899.0Upright Tillers
Osborne327.0Seedling755.0Tillering
Oskaloosa 1SE441.0Seedling838.0Upright Tillers
Ottawa 2SE474.0Seedling833.0Upright Tillers
Overbrook553.0Seedling896.0Upright Tillers
Parsons647.0Tillering1010.0Jointing
Phillipsburg 1SW371.0Seedling730.0Tillering
Plainville 5N395.0Seedling808.0Upright Tillers
Pretty Prairie GMD497.0Seedling909.0Upright Tillers
Richfield642.0Tillering872.0Upright Tillers
Rock Springs518.0Seedling820.0Upright Tillers
Rocky Ford409.0Seedling799.0Tillering
Rossville 2SE426.0Seedling785.0Tillering
Roth Tech Farm478.0Seedling738.0Tillering
Russell Springs 3SW363.0Seedling725.0Tillering
Satanta659.0Tillering860.0Upright Tillers
Scandia452.0Seedling668.0Tillering
Scott City 3SE401.0Seedling676.0Tillering
Sedan750.0Tillering1066.0Jointing
Seguin 3E408.0Seedling644.0Tillering
Sherman356.0Seedling651.0Tillering
Silver Lake 4E563.0Seedling779.0Tillering
Spearville609.0Tillering795.0Tillering
St John 1NW607.0Tillering824.0Upright Tillers
Stanton657.0Tillering830.0Upright Tillers
Sublette 1E789.0Tillering818.0Upright Tillers
Tribune374.0Seedling723.0Tillering
Tribune 6NE382.0Seedling661.0Tillering
Uniontown 3NW586.0Seedling998.0Upright Tillers
Viola637.0Tillering905.0Upright Tillers
WaKeeney424.0Seedling812.0Upright Tillers
Wallace392.0Seedling667.0Tillering
Washington355.0Seedling723.0Tillering
Welda 3E520.0Seedling951.0Upright Tillers
Willis Tech Farm478.0Seedling797.0Tillering
Woodson571.0Seedling959.0Upright 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