RICHARDSON GROVE ST PK, CALIFORNIA

Period of Record General Climate Summary - Growing Degree Days

Station:(047404) RICHARDSON GROVE ST PK
From Year=1961 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 134 190 293 382 572 722 919 925 789 548 251 134 5859
40 S 134 324 617 999 1571 2293 3212 4137 4926 5474 5725 5859 5859
45 M 44 79 154 237 417 572 764 770 639 394 123 48 4241
45 S 44 123 277 514 932 1503 2268 3037 3677 4070 4193 4241 4241
50 M 8 18 57 117 267 422 609 615 489 244 37 10 2893
50 S 8 27 83 200 467 889 1498 2113 2602 2846 2883 2893 2893
55 M 1 1 11 43 138 275 455 460 340 116 6 1 1845
55 S 1 2 13 56 194 469 924 1383 1723 1839 1845 1845 1845
60 M 0 0 1 10 55 144 300 305 198 39 0 0 1052
60 S 0 0 1 10 65 209 510 815 1013 1052 1052 1052 1052
Corn Growing Degree Days
50 M 31 76 150 217 334 427 559 561 483 320 94 29 3281
50 S 31 106 256 474 807 1234 1794 2355 2838 3158 3252 3281 3281
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