COLUSA 2 SSW, CALIFORNIA

Period of Record General Climate Summary - Growing Degree Days

Station:(041948) COLUSA 2 SSW
From Year=1948 To Year=2006
Growing Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
40 M 179 294 439 581 837 1000 1150 1098 950 728 376 186 7819
40 S 179 473 912 1493 2330 3330 4480 5579 6529 7257 7633 7819 7819
45 M 72 162 287 431 682 850 995 943 800 573 233 75 6103
45 S 72 233 520 951 1633 2483 3478 4422 5222 5795 6027 6103 6103
50 M 18 61 150 286 527 700 840 788 650 418 112 19 4570
50 S 18 78 229 515 1041 1742 2582 3370 4020 4438 4551 4570 4570
55 M 2 13 56 159 374 550 685 633 500 268 36 3 3279
55 S 2 15 71 230 603 1153 1838 2472 2972 3240 3277 3279 3279
60 M 0 1 13 67 232 401 530 478 351 139 7 0 2220
60 S 0 1 14 81 313 714 1244 1723 2074 2213 2219 2220 2220
Corn Growing Degree Days
50 M 74 149 249 358 518 620 697 666 583 455 214 85 4667
50 S 74 224 473 830 1348 1967 2664 3331 3913 4368 4582 4667 4667
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 Jul 28, 2006
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