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Irrigation at K-State Research and Extension
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Daily Weather and ET

Summer ET Data, 2008
Daily weather data at NWREC, Colby, Kansas, 2008

Colby

Daily Weather Data for each month of 2007
Daily Weather Data for each month of 2006
Daily Weather Data for each month of 2005
Daily Weather Data for each month of 2004

Long term annual and monthly precipitation (1893-2007)  MS Excel format

Long term annual and monthly precipitation (1893-2007)  Adobe PDF format

Summer ET Data, 2007

Summer ET Data, 2006
Summer ET Data, 2005
Summer ET Data, 2004
Summer ET Data, 2003
Summer ET Data, 2002
Summer ET Data, 2001
Summer ET Data, 2000

Discussion and Graph of 2002 ET and Precipitation, Colby
Discussion and Graph of 2001 ET and Precipitation, Colby
Discussion and Graph of 2000 ET and Precipitation, Colby

Historical Daily ETr, AET and Precipitation Data at NWREC, Colby, Kansas, 1972-2007
This file is in Excel and is fairly large (1.13 MB).  Right click to download to your computer.  Daily data for corn, May 15 - Sept. 11.  No additional weather data is included in file.

Modified Penman Reference Evapotranspiration (Alfalfa-based ETr) calculation files

ETr and associated weather data at NWREC, Colby, Kansas, May 1 through September 29 for 1972-1989

This file is in Excel and is fairly large (1.6 MB).  Right click to download to your computer. 

ETr and associated weather data at NWREC, Colby, Kansas, May 1 through September 29 for 1990-2007

This file is in Excel and is fairly large (1.6 MB).  Right click to download to your computer. 

Garden City

Summer ET Data, 2003
Summer ET Data, 2002
Summer ET Data, 2001
Summer ET Data, 2000

General Information for Using ET

Explanation of the importance of ET data
Simple irrigation scheduling software Kiscorn
More advanced KANSCHED irrigation scheduling software
Contact  malam@oznet.ksu.edu  for help with KANSCHED
Alfalfa-based Penman Crop Coefficients for Western Kansas(A discussion in PDF format)
Excel file containing the Crop Coefficients Do not use these crop coefficients with Penman-Monteith or other short grass-based ET equations!!!

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