TUJUNGA, CALIFORNIA

Period of Record General Climate Summary - Growing Degree Days

Station:(049047) TUJUNGA
From Year=1966 To Year=1987
Growing Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
40 M 415 430 489 565 738 892 1110 1105 957 776 531 409 8416
40 S 415 845 1334 1899 2637 3529 4638 5743 6700 7476 8007 8416 8416
45 M 269 291 335 415 583 742 955 950 807 621 382 262 6612
45 S 269 560 895 1311 1894 2636 3590 4540 5347 5968 6350 6612 6612
50 M 144 165 194 273 428 592 800 795 657 467 240 136 4890
50 S 144 309 503 776 1204 1796 2596 3391 4048 4514 4754 4890 4890
55 M 64 73 92 153 279 442 645 640 507 316 125 53 3388
55 S 64 138 229 382 661 1103 1748 2388 2895 3210 3336 3388 3388
60 M 24 26 31 69 155 298 490 485 358 181 50 15 2180
60 S 24 50 81 150 305 603 1092 1577 1935 2116 2165 2180 2180
Corn Growing Degree Days
50 M 228 246 284 337 437 547 700 702 604 472 298 224 5079
50 S 228 474 758 1095 1532 2079 2779 3480 4085 4557 4855 5079 5079
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