PISMO BEACH, CALIFORNIA

Period of Record General Climate Summary - Growing Degree Days

Station:(046943) PISMO BEACH
From Year=1949 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 401 409 472 506 563 610 660 685 674 656 527 425 6586
40 S 401 809 1281 1786 2350 2959 3619 4304 4978 5634 6160 6586 6586
45 M 249 268 317 356 408 460 505 530 524 501 377 272 4766
45 S 249 517 834 1190 1598 2058 2562 3092 3617 4117 4494 4766 4766
50 M 118 135 170 209 253 310 350 375 374 346 229 134 3002
50 S 118 252 423 632 885 1195 1544 1919 2293 2640 2868 3002 3002
55 M 35 42 63 87 109 161 195 220 225 196 103 42 1479
55 S 35 77 141 228 338 499 694 914 1139 1335 1437 1479 1479
60 M 6 8 16 27 30 48 59 78 91 77 31 9 480
60 S 6 14 30 57 87 134 194 272 363 440 471 480 480
Corn Growing Degree Days
50 M 213 216 254 275 301 327 354 377 379 369 291 229 3585
50 S 213 429 683 958 1260 1587 1941 2318 2696 3065 3356 3585 3585
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