LOS ANGELES DWTN USC CAMPUS, CALIFORNIA

Period of Record General Climate Summary - Growing Degree Days

Station:(045115) LOS ANGELES CIVIC CENTE
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 538 520 619 667 767 850 1014 1037 968 872 691 564 9105
40 S 538 1058 1677 2344 3110 3960 4974 6011 6979 7850 8541 9105 9105
45 M 383 379 464 517 612 700 859 882 818 717 541 410 7280
45 S 383 763 1227 1743 2355 3055 3914 4796 5613 6330 6871 7280 7280
50 M 236 241 310 367 457 550 704 727 668 562 391 258 5469
50 S 236 476 786 1153 1610 2160 2864 3591 4258 4820 5211 5469 5469
55 M 113 119 167 221 302 400 549 572 518 407 245 127 3740
55 S 113 232 400 621 923 1323 1872 2444 2961 3368 3613 3740 3740
60 M 41 45 66 101 155 250 394 417 368 254 121 46 2256
60 S 41 85 151 252 406 657 1051 1467 1835 2090 2211 2256 2256
Corn Growing Degree Days
50 M 274 268 328 370 454 544 690 709 644 548 399 293 5521
50 S 274 542 870 1240 1694 2238 2928 3637 4281 4829 5228 5521 5521
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