JULIAN, CALIFORNIA

Period of Record General Climate Summary - Growing Degree Days

Station:(044412) JULIAN
From Year=1893 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 182 188 265 369 561 783 1018 1027 857 597 346 155 6348
40 S 182 369 634 1003 1563 2347 3365 4393 5250 5847 6193 6348 6348
45 M 81 94 149 233 409 634 863 872 707 446 214 68 4772
45 S 81 176 325 558 967 1601 2464 3337 4044 4490 4704 4772 4772
50 M 25 34 68 125 269 485 708 717 557 303 109 21 3423
50 S 25 60 128 253 522 1006 1715 2432 2990 3293 3402 3423 3423
55 M 5 6 23 56 151 340 553 563 410 181 42 3 2332
55 S 5 11 34 89 240 580 1134 1696 2106 2287 2329 2332 2332
60 M 0 1 4 22 67 210 399 408 269 88 10 0 1480
60 S 0 2 6 27 94 305 703 1112 1381 1469 1480 1480 1480
Corn Growing Degree Days
50 M 84 103 156 222 344 497 676 679 557 361 188 69 3934
50 S 84 186 342 563 907 1404 2080 2759 3316 3677 3865 3934 3934
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