GREENLAND RANCH, CALIFORNIA

Period of Record General Climate Summary - Growing Degree Days

Station:(043603) GREENLAND RANCH
From Year=1911 To Year=1961
Growing Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
40 M 390 528 847 1105 1389 1607 1897 1828 1506 1148 661 404 13308
40 S 390 918 1765 2870 4259 5865 7762 9590 11096 12243 12904 13308 13308
45 M 246 387 692 955 1234 1457 1742 1673 1356 993 511 255 11499
45 S 246 633 1326 2280 3514 4971 6713 8386 9741 10734 11245 11499 11499
50 M 128 251 537 805 1079 1307 1587 1518 1206 838 362 128 9745
50 S 128 380 917 1721 2800 4107 5694 7212 8417 9255 9617 9745 9745
55 M 52 133 384 655 924 1157 1432 1363 1056 683 225 44 8107
55 S 52 186 570 1224 2148 3305 4737 6100 7155 7838 8063 8107 8107
60 M 17 52 241 506 769 1007 1277 1208 906 528 119 10 6639
60 S 17 69 310 816 1585 2592 3868 5076 5982 6510 6629 6639 6639
Corn Growing Degree Days
50 M 263 335 543 707 874 986 1177 1128 912 730 433 265 8353
50 S 263 598 1141 1848 2722 3708 4885 6013 6925 7655 8088 8353 8353
M = Monthly Data
S - Running sum of monthly data.
Growing Degree Day units are computed as the difference between the daily average temperature and the base temperature. (Daily Ave. Temp. - Base Temp.) One unit is accumulated for each degree Fahrenheit the average temperature is above the base temperature. Negative numbers are discarded. Example: If the days high temperature was 95 and the low temperature was 51, the base 60 heating degree day units is ((95 + 51) / 2) - 60 = 13. This is done for each day of the month and summed.
Corn Growing Degree Day units have the limitations that the maximum daily temperatures greater than 86 F are set to 86 F and minimums less than 50 F are set to 50 F.
Table updated on Oct 31, 2012
Months with 5 or more missing days are not considered
Years with 1 or more missing months are not considered

Western Regional Climate Center, wrcc@dri.edu