WOODLAND 1 WNW, CALIFORNIA

Period of Record General Climate Summary - Growing Degree Days

Station:(049781) WOODLAND 1 WNW
From Year=1906 To Year=2012
Growing Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
40 M 192 304 471 607 835 999 1149 1107 978 762 417 207 8028
40 S 192 496 967 1574 2409 3408 4557 5664 6642 7404 7820 8028 8028
45 M 79 170 318 457 680 849 994 952 828 607 270 89 6291
45 S 79 248 566 1023 1703 2552 3546 4498 5326 5933 6203 6291 6291
50 M 19 65 177 310 525 699 839 797 678 452 140 23 4724
50 S 19 84 260 570 1096 1794 2634 3431 4108 4561 4701 4724 4724
55 M 2 14 73 178 373 549 684 642 528 300 52 3 3396
55 S 2 15 88 266 638 1187 1871 2514 3041 3341 3394 3396 3396
60 M 0 1 19 80 230 400 529 487 378 163 12 0 2300
60 S 0 1 20 100 330 730 1259 1746 2125 2287 2300 2300 2300
Corn Growing Degree Days
50 M 82 152 264 366 513 609 677 655 598 468 232 94 4711
50 S 82 234 498 864 1377 1987 2663 3319 3917 4385 4617 4711 4711
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