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Southwest Research-Extension Center

ET Information

Current ET Data 2021
Date         DOYTemp MaxTemp MinRef ETCorn   May 5Corn     May 24Sorg     May 30Soy      May 25Wheat     March 15Wheat   April 15LawnsHeat Units
1-Jan-21144190.06      0.050.0
2-Jan-21251200.05      0.040.5
3-Jan-21355180.07      0.062.7
4-Jan-21456230.08      0.063.2
5-Jan-21564300.17      0.147.2
6-Jan-21650190.13      0.100.0
7-Jan-21743130.03      0.020.0
8-Jan-21851150.05      0.040.4
9-Jan-21933150.01      0.010.0
10-Jan-211040230.03      0.020.0
11-Jan-211148140.05      0.040.0
12-Jan-211257130.07      0.063.7
13-Jan-211368200.10      0.089.2
14-Jan-211448310.16      0.130.0
15-Jan-211543160.16      0.130.0
16-Jan-211655160.14      0.112.5
17-Jan-211750280.12      0.100.0
18-Jan-211851210.12      0.100.5
19-Jan-211947200.08      0.060.0
20-Jan-212062250.15      0.126.2
21-Jan-212162190.11      0.095.9
22-Jan-212245120.08      0.060.0
23-Jan-212362220.13      0.105.9
24-Jan-212434220.05      0.040.0
25-Jan-212529150.03      0.020.0
26-Jan-21262270.03      0.020.0
27-Jan-212728-60.03      0.020.0
28-Jan-212848140.08      0.060.0
29-Jan-212947240.06      0.050.0
30-Jan-213049260.10      0.080.0
31-Jan-213152230.08      0.060.8
1-Feb-213262240.12      0.105.8
2-Feb-213360250.09      0.075.1
3-Feb-213471280.17      0.1410.5
4-Feb-213548260.13      0.100.0
5-Feb-213651210.07      0.060.7
6-Feb-213738150.07      0.060.0
7-Feb-213825130.03      0.020.0
8-Feb-21391370.02      0.020.0
9-Feb-21401580.02      0.020.0
10-Feb-21411430.02      0.020.0
11-Feb-214218-10.03      0.020.0
12-Feb-2143700.03      0.020.0
13-Feb-21449-20.03      0.020.0
14-Feb-21453-160.02      0.020.0
15-Feb-21465-200.00      0.000.0
16-Feb-214712-90.03      0.020.0
17-Feb-21482550.04      0.030.0
18-Feb-21492880.03      0.020.0
19-Feb-215050100.08      0.060.0
20-Feb-215160170.15      0.125.1
21-Feb-215251230.15      0.120.3
22-Feb-215366170.14      0.118.1
23-Feb-215474220.27      0.2211.9
24-Feb-215551220.14      0.110.3
25-Feb-215645220.09      0.070.0
26-Feb-215756180.15      0.123.0
27-Feb-215875790.31      0.2512.5
28-Feb-215947150.14      0.110.0
1-Mar-216054100.12      0.102.1
2-Mar-206171200.26      0.2110.4
3-Mar-216272150.22      0.1810.9
4-Mar-216365200.19      0.157.5
5-Mar-216464380.17      0.147.0
6-Mar-216568330.23      0.189.2
7-Mar-216673410.21      0.1711.4
8-Mar-216772350.26      0.2111.2
9-Mar-216881400.21      0.1715.3
10-Mar-216970350.19      0.159.9
11-Mar-217057190.13      0.103.4
12-Mar-217143340.03      0.020.0
13-Mar-217249370.01      0.010.0
14-Mar-217359380.13      0.104.6
15-Mar-217454300.08    0.01 0.061.9
16-Mar-217549330.08    0.01 0.060.0
17-Mar-217642320.07    0.01 0.060.0
18-Mar-217752260.13    0.02 0.101.1
19-Mar-217860230.14    0.02 0.114.9
20-Mar-217970360.20    0.03 0.1610.1
21-Mar-218067450.28    0.05 0.228.7
22-Mar-218149350.03    0.01 0.020.0
23-Mar-218252310.09    0.02 0.070.9
24-Mar-218345300.05    0.01 0.040.0
25-Mar-218455340.09    0.02 0.072.4
26-Mar-218569380.22    0.05 0.050.18
27-Mar-218661320.17    0.04 0.145.4
28-Mar-218772290.24    0.06 0.1910.9
29-Mar-218889380.32    0.09 0.2618.0
30-Mar-218954290.23    0.07 0.182.1
31-Mar-219060250.18    0.06 0.145.0
1-Apr-219170280.34    0.12 0.2710.1
2-Apr-219276400.28    0.11 0.2212.9
3-Apr-219385350.27    0.12 0.2217.7
4-Apr-219487460.39    0.18 0.3118.0
5-Apr-219587490.36    0.18 0.2918.0
6-Apr-219680410.26    0.14 0.2114.9
7-Apr-219753330.11    0.06 0.091.7
8-Apr-219876340.29    0.17 0.2313.2
9-Apr-219958300.22    0.14 0.183.9
10-Apr-2110067230.20    0.13 0.168.5
11-Apr-2110175350.34    0.24 0.2712.7
12-Apr-2110258290.20    0.15 0.164.1
13-Apr-2110356320.18    0.14 0.143.2
14-Apr-2110456260.18    0.14 0.142.9
15-Apr-2110547380.10    0.080.020.080.0
16-Apr-2110645320.05    0.040.010.040.0
17-Apr-2110752310.10    0.090.020.081.2
18-Apr-2110864260.18    0.160.030.147.1
19-Apr-2110951280.17    0.160.030.140.6
20-Apr-2111048230.15    0.140.020.120.0
21-Apr-2111148270.11    0.110.020.090.0
22-Apr-2111263300.19    0.190.030.156.7
23-Apr-2111359370.09    0.090.020.074.3
24-Apr-2111468330.16    0.160.030.139.8
25-Apr-2111589460.44    0.440.090.3518.0
26-Apr-2111693460.53    0.530.120.4218.0
27-Apr-2111781500.33    0.330.080.2615.4
28-Apr-2111864450.14    0.140.040.117.2
29-Apr-2111976360.26    0.260.070.2113.1
30-Apr-2112081360.31    0.310.100.2515.6
1-May-2112187450.45    0.450.150.3618.0
2-May-2112288530.26    0.260.100.2119.3
3-May-2112363470.13    0.130.050.106.3
4-May-2112464420.20    0.200.090.166.9
5-May-2112573430.190.04   0.190.090.1511.4
6-May-2112672350.220.04   0.220.110.1810.9
7-May-2112788470.360.07   0.360.190.2918.0
8-May-2112891540.280.06   0.280.160.2219.8
9-May-2112963450.250.05   0.250.150.206.6
10-May-2113055420.090.02   0.090.060.072.6
11-May-2113151420.070.01   0.070.050.060.4
12-May-2113260350.120.02   0.120.080.105.1
13-May-2113373380.260.05   0.260.190.2111.3
14-May-2113481510.310.06   0.310.240.2516.2
15-May-2113574570.200.04   0.200.160.1615.2
16-May-2113680560.260.06   0.250.220.2117.8
17-May-2113772530.130.03   0.120.110.1012.5
18-May-2113874520.180.04   0.170.160.1413.2
19-May-2113974530.180.04   0.170.160.1413.6
20-May-2114079560.190.05   0.170.180.1517.1
21-May-2114182620.260.06   0.230.250.2122.0
22-May-2114282620.210.05   0.180.210.1722.0
23-May-2114381630.180.05   0.150.180.1421.8
24-May-2114480580.210.060.04  0.170.210.1719.3
25-May-2114582570.200.060.04 0.040.160.200.1619.1
26-May-2114685580.260.080.05 0.050.210.260.2121.5
27-May-2114777530.270.080.05 0.050.210.270.2215.1
28-May-2114874470.240.080.05 0.050.180.240.1912.1
29-May-2114973490.220.070.04 0.040.160.220.1811.6
30-May-2115060550.040.010.010.010.010.030.040.0037.3
31-May-2115162530.070.030.010.010.010.050.070.067.4
1-Jun-2115274550.160.060.030.030.030.100.160.1314.2
2-Jun-2115377500.220.090.040.040.050.140.220.1813.4
3-Jun-2115482520.240.100.050.050.050.140.240.1917.2
4-Jun-2115587570.310.130.070.060.070.180.310.2521.3
5-Jun-2115685620.360.160.080.070.080.190.360.2923.6
6-Jun-2115786590.270.120.060.050.060.140.270.2222.1
7-Jun-2115889650.260.120.060.050.060.130.260.2125.6
8-Jun-2115987640.290.140.070.060.070.130.290.2324.9
9-Jun-2116089670.210.110.050.040.050.090.210.1726.4
10-Jun-2116195720.300.160.080.060.080.120.300.2429.0
11-Jun-2116289650.430.230.120.090.120.160.430.3425.7
12-Jun-2116389610.250.140.070.060.070.090.250.2023.7
13-Jun-2116493670.330.190.100.080.100.100.330.2626.5
14-Jun-2116594580.330.190.100.080.110.090.330.2622.1
15-Jun-2116696650.370.220.120.090.12 0.360.3025.7
16-Jun-21167101670.440.270.140.110.15 0.430.3526.4
17-Jun-21168103670.510.330.170.140.19 0.490.4126.3
18-Jun-21169104620.470.310.170.130.18  0.3824.2
19-Jun-21170101640.400.270.150.120.16  0.3225.1
20-Jun-2117192610.390.270.150.120.16  0.3123.4
21-Jun-2117279580.220.160.090.070.09  0.1818.6
22-Jun-2117390590.450.320.190.150.20  0.3622.6
23-Jun-21174101660.410.300.170.140.19  0.3326.1
24-Jun-2117594660.330.250.150.120.16  0.2626.2
25-Jun-2117691630.240.180.110.090.12  0.1924.4
26-Jun-2117782600.210.160.100.080.11  0.1721.1
27-Jun-2117884650.200.160.100.080.11  0.1620.2
28-Jun-2117984600.210.170.110.090.12  0.1722.1
29-Jun-2118086600.210.170.110.090.12  0.1722.7
30-Jun-2118187630.210.180.110.090.12  0.1724.5
1-Jul-2118281650.170.140.090.080.10  0.1423.0
2-Jul-2118385600.190.160.110.090.12  0.1522.8
3-Jul-2118489610.290.250.170.140.19  0.2323.7
4-Jul-2118592670.290.260.180.150.19  0.2326.6
5-Jul-2118691680.270.240.170.140.19  0.2226.8
6-Jul-2118792640.230.210.150.120.16  0.1825.2
7-Jul-2118885620.150.140.100.080.11  0.1223.4
8-Jul-2118995600.360.330.240.210.27  0.2922.9
9-Jul-21190102680.480.450.330.280.37  0.3827.2
10-Jul-2119191630.360.340.250.220.28  0.2924.4
11-Jul-2119285550.300.280.220.190.24  0.2420.0
12-Jul-2119392530.300.290.220.190.25  0.2419.6
13-Jul-2119499640.400.380.300.260.34  0.3225.0
14-Jul-2119596680.410.380.310.280.35  0.3326.8
15-Jul-2119687640.190.180.150.130.17  0.1525.1
16-Jul-2119793640.270.260.220.190.24  0.2225.2
17-Jul-2119892680.280.270.230.200.26  0.2226.8
18-Jul-2119992660.230.220.190.170.21  0.1825.9
19-Jul-2120089640.330.320.280.250.31  0.2625.0
20-Jul-21201N/AN/AN/AN/AN/AN/AN/A  N/AN/A
21-Jul-21202N/AN/AN/AN/AN/AN/AN/A  N/AN/A
22-Jul-2120395630.410.400.360.330.41  0.3324.4
23-Jul-2120497640.410.410.360.330.41  0.3325.0
24-Jul-2120599660.310.310.280.260.31  0.2525.8
25-Jul-2120692670.240.240.220.200.24  0.1926.4
26-Jul-2120793660.260.260.240.220.26  0.2125.9
27-Jul-2120897650.340.340.310.290.34  0.2725.7
28-Jul-21209101700.400.400.370.350.40  0.3228.2
29-Jul-2121098680.360.360.340.320.36  0.2926.8
30-Jul-2121199690.380.380.360.340.38  0.3027.6
31-Jul-2121297690.360.360.340.330.36  0.2927.4
1-Aug-2121384600.160.160.150.150.16  0.1322.1
2-Aug-2121488540.250.250.230.230.25  0.2020.1
3-Aug-2121591600.340.330.320.320.34  0.2723.1
4-Aug-2121689630.290.280.270.270.29  0.2324.4
5-Aug-2121794610.280.270.270.270.28  0.2223.6
6-Aug-2121898600.390.380.380.370.39  0.3122.9
7-Aug-21219100660.330.320.320.320.33  0.2625.8
8-Aug-2122098600.270.260.260.260.27  0.2223.0
9-Aug-21221102620.340.320.330.330.34  0.2723.8
10-Aug-21222102680.350.330.350.340.35  0.2826.9
11-Aug-21223104710.360.340.360.340.36  0.2928.7
12-Aug-21224102670.340.310.340.330.34  0.2726.5
13-Aug-2122583600.130.120.130.130.13  0.1023.5
14-Aug-2122690630.270.250.270.260.26  0.2224.5
15-Aug-2122793670.340.310.340.330.33  0.2726.4
16-Aug-2122889650.330.290.330.330.32  0.2625.6
17-Aug-2122992590.300.260.300.300.29  0.2422.5
18-Aug-2123090640.290.250.290.290.27  0.2325.2
19-Aug-2123192690.230.200.230.230.22  0.1827.6
20-Aug-2123294670.330.270.320.330.30  0.2626.7
21-Aug-2123387640.340.270.330.340.31  0.2725.1
22-Aug-2123498640.400.320.390.400.35  0.3224.9
23-Aug-21235105710.450.360.440.450.40  0.3628.7
24-Aug-21236107700.390.310.380.390.35  0.3127.8
25-Aug-21237104650.310.240.300.310.27  0.2525.4
26-Aug-21238101690.470.360.450.470.41  0.3827.3
27-Aug-21239100700.450.340.430.440.38  0.3628.2
28-Aug-2124098700.430.320.410.420.36  0.3427.8
29-Aug-2124185660.270.200.250.260.22  0.2225.4
30-Aug-2124295620.300.210.280.290.25  0.2424.1
31-Aug-2124399650.310.220.290.300.25  0.2525.7
1-Sep-21244100620.350.240.320.340.28  0.2823.9
2-Sep-2124591700.180.120.160.170.14  0.1428.1
3-Sep-2124686660.150.100.130.140.12  0.1225.9
4-Sep-2124784630.200.130.180.190.15  0.1623.6
5-Sep-2124888580.220.140.190.210.16  0.1822.2
6-Sep-2124995610.280.170.240.260.20  0.2223.4
7-Sep-2125091610.30 0.260.280.21  0.2423.5
8-Sep-2125186510.22 0.190.200.15  0.1818.7
9-Sep-2125296600.31 0.260.280.21  0.2523.0
10-Sep-21253101590.25 0.200.220.17  0.2022.5
11-Sep-21254104610.40 0.320.350.26  0.3223.3
12-Sep-2125595630.31 0.250.270.20  0.2524.6
13-Sep-2125698630.40 0.310.340.25  0.3224.4
14-Sep-2125789650.25 0.190.210.15  0.2025.4
15-Sep-2125888600.27  0.220.16  0.2222.9
16-Sep-2125993640.36  0.290.21  0.2925.2
17-Sep-2126080580.21  0.170.12  0.1718.8
18-Sep-2126190540.24  0.190.13  0.1919.8
19-Sep-2126297630.41  0.320.22  0.3324.6
20-Sep-2126379630.37  0.28   0.3021.0
21-Sep-2126473450.24  0.18   0.1911.3
22-Sep-2126581390.23  0.17   0.1815.5
23-Sep-2126689520.35  0.25   0.2819.2
24-Sep-2126781500.25  0.18   0.2015.6
25-Sep-2126884420.22      0.1817.1
26-Sep-2126996580.39      0.3121.9
27-Sep-2127096560.25      0.2020.8
28-Sep-2127189590.31      0.2522.5
29-Sep-2127286600.23      0.1823.1
30-Sep-2127370510.14      0.1110.9
1-Oct-2127473460.09      0.0711.4
2-Oct-2127574520.08      0.0612.7
3-Oct-2127681430.15      0.1215.7
4-Oct-2127786440.18      0.1418.0
5-Oct-2127882450.16      0.1316.1
6-Oct-2127983480.24      0.1916.3
7-Oct-2128086560.24      0.1920.8
8-Oct-2128188450.18      0.1418.0
9-Oct-2128292570.22      0.1821.5
10-Oct-2128367450.11      0.098.7
11-Oct-2128478430.31      0.2514.0
12-Oct-2128575500.15      0.1212.6
13-Oct-2128665380.12      0.107.6
14-Oct-2128759390.14      0.114.3
15-Oct-2128861320.13      0.105.4
16-Oct-2128972290.11      0.0911.1
17-Oct-2129077340.18      0.1413.6
18-Oct-2129181450.33      0.2615.3
19-Oct-2129285470.27      0.2217.7
20-Oct-2129366370.14      0.117.8
21-Oct-2129472340.11      0.0911.0
22-Oct-2129576360.12      0.1013.0
23-Oct-2129675430.09      0.0712.3
24-Oct-2129773480.16      0.1311.3
25-Oct-2129867370.13      0.108.7
26-Oct-2129988460.29      0.2318.0
27-Oct-2130063410.16      0.136.3
28-Oct-2130162360.18      0.146.2
29-Oct-2130268310.14      0.119.0
30-Oct-2130378320.18      0.1413.9
31-Oct-2130451310.08      0.060.4
1-Nov-2130544350.06      0.050.0
2-Nov-2130639360.02      0.020.0
3-Nov-2130747320.03      0.020.0
4-Nov-2130869270.12      0.109.5
5-Nov-2130970380.14      0.119.8
6-Nov-2131080340.16      0.1314.8
7-Nov-2131186390.20      0.1618.0
8-Nov-2131263360.11      0.096.3
9-Nov-2131357400.07      0.063.7
10-Nov-2131467350.10      0.088.4
11-Nov-2131556300.10      0.083.0
12-Nov-2131653280.18      0.141.3
13-Nov-2131773250.12      0.1011.5
14-Nov-2131860230.11      0.095.2
15-Nov-2131982350.15      0.1215.8
16-Nov-2132075420.13      0.1012.5
17-Nov-2132154230.21      0.172.0
18-Nov-2132253140.12      0.101.6
19-Nov-2132362350.21      0.176.1
20-Nov-2132461220.13      0.105.6
21-Nov-2132558290.14      0.113.9
22-Nov-2132667230.12      0.108.6
23-Nov-21327           
24-Nov-21328           
25-Nov-21329           
26-Nov-21330           
27-Nov-21331           
28-Nov-21332           
29-Nov-21333           
30-Nov-21334           
1-Dec-21335           
2-Dec-21336           
3-Dec-21337           
4-Dec-21338           
5-Dec-21339           
6-Dec-21340           
7-Dec-21341           
8-Dec-21342           
9-Dec-21343           
10-Dec-21344           
11-Dec-21345           
12-Dec-21346           
13-Dec-21347           
14-Dec-21348           
15-Dec-21349           
16-Dec-21350           
17-Dec-21351           
18-Dec-21352           
19-Dec-21353           
20-Dec-21354           
21-Dec-21355           
22-Dec-21356           
23-Dec-21357           
24-Dec-21358           
25-Dec-21359           
26-Dec-21360           
27-Dec-21361           
28-Dec-21362           
29-Dec-21363           
30-Dec-21364           
31-Dec-21365           
  • DOY = Day of the Year
  • Ref ET = ET Estimate for reference crop alfalfa at full growth
  • Corn May 5 = ET estimate for corn emerging on May 5 adjusted with crop factor

 

If you need additional assistance, please contact Dr. Danny Rogers at 785-532-2933 or email drogers@ksu.edu on ET information or KanSched, the KSU ET based irrigation scheduling program. KanSched is available for free at www.mobileirrigationlab.com.

 

Historical ET Data

ET 2020
ET 2019
ET 2018

ET 2017
ET 2016

ET 2015

ET 2014
ET 2013
ET 2012
ET 2011
ET 2010