ANTIOCH PUMP PLANT 3, CALIFORNIA

Period of Record General Climate Summary - Growing Degree Days

Station:(040232) ANTIOCH PUMP PLANT 3
From Year=1955 To Year=2006
Growing Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
40 M 180 300 443 565 772 929 1059 1032 920 738 406 200 7545
40 S 180 480 923 1488 2260 3189 4248 5280 6200 6939 7345 7545 7545
45 M 72 166 289 415 617 779 904 877 770 583 259 86 5818
45 S 72 238 528 943 1560 2338 3243 4120 4890 5474 5732 5818 5818
50 M 18 61 147 269 462 629 749 722 620 429 132 22 4261
50 S 18 79 226 495 957 1586 2336 3058 3678 4107 4239 4261 4261
55 M 2 12 50 142 310 479 594 567 470 278 48 3 2955
55 S 2 14 64 206 515 994 1589 2156 2626 2904 2952 2955 2955
60 M 0 1 9 56 173 331 439 412 321 143 9 0 1895
60 S 0 1 10 65 239 569 1009 1421 1742 1885 1895 1895 1895
Corn Growing Degree Days
50 M 77 148 241 332 472 582 658 645 579 452 219 92 4497
50 S 77 225 466 799 1271 1853 2510 3156 3735 4187 4406 4497 4497
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 Jul 28, 2006
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