ORICK PRAIRIE CREEK PK, CALIFORNIA

Period of Record General Climate Summary - Growing Degree Days

Station:(046498) ORICK PRAIRIE CREEK PK
From Year=1948 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 160 197 238 284 393 479 573 596 554 444 270 160 4349
40 S 160 357 595 879 1272 1751 2324 2921 3475 3919 4189 4349 4349
45 M 59 84 105 143 239 329 418 441 404 290 135 59 2706
45 S 59 142 247 390 629 959 1377 1818 2222 2512 2647 2706 2706
50 M 12 21 27 44 104 182 263 286 255 146 43 13 1395
50 S 12 33 60 104 208 390 653 939 1194 1340 1382 1395 1395
55 M 1 2 2 8 26 61 113 134 114 46 6 1 514
55 S 1 3 6 14 39 100 213 347 461 507 513 514 514
60 M 0 0 0 1 4 10 18 25 28 7 0 0 93
60 S 0 0 0 1 5 15 34 58 86 93 93 93 93
Corn Growing Degree Days
50 M 55 85 112 143 199 245 305 324 322 248 116 49 2202
50 S 55 140 252 395 594 839 1143 1467 1789 2037 2153 2202 2202
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