ANTIOCH PUMP PLT 3, CALIFORNIA

Period of Record General Climate Summary - Growing Degree Days

Station:(040232) ANTIOCH PUMP PLANT 3
From Year=1955 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 185 301 449 567 777 934 1066 1036 924 738 411 204 7592
40 S 185 486 935 1502 2279 3213 4279 5314 6239 6977 7388 7592 7592
45 M 75 167 296 417 622 784 911 881 774 583 264 88 5861
45 S 75 241 537 954 1576 2360 3271 4151 4926 5509 5773 5861 5861
50 M 18 61 153 271 467 634 756 726 624 429 137 23 4298
50 S 18 80 232 503 970 1604 2360 3086 3710 4138 4276 4298 4298
55 M 2 12 53 143 314 484 601 571 474 277 50 3 2986
55 S 2 14 67 211 525 1009 1610 2180 2654 2932 2982 2986 2986
60 M 0 1 10 57 177 336 446 416 325 142 10 0 1920
60 S 0 1 11 68 245 581 1026 1442 1767 1909 1919 1920 1920
Corn Growing Degree Days
50 M 81 148 245 333 475 586 663 649 582 450 221 94 4528
50 S 81 230 475 808 1283 1869 2532 3181 3763 4214 4434 4528 4528
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