SANTA ANA RIVER PH 1, CALIFORNIA

Period of Record General Climate Summary - Growing Degree Days

Station:(047894) SANTA ANA RIVER PH 1
From Year=1903 To Year=1967
Growing Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
40 M 277 308 406 521 680 873 1149 1136 998 751 494 317 7910
40 S 277 585 991 1512 2192 3065 4214 5350 6348 7099 7593 7910 7910
45 M 153 184 262 374 525 723 994 981 848 597 349 184 6174
45 S 153 337 599 973 1499 2222 3215 4196 5044 5641 5990 6174 6174
50 M 65 90 146 239 374 573 839 826 698 445 218 85 4596
50 S 65 154 300 539 913 1486 2325 3151 3849 4294 4512 4596 4596
55 M 19 35 66 132 235 424 684 671 548 302 114 28 3258
55 S 19 54 120 252 487 911 1595 2266 2814 3116 3230 3258 3258
60 M 3 10 22 60 127 283 529 516 402 181 47 6 2186
60 S 3 13 35 95 222 506 1034 1551 1952 2133 2180 2186 2186
Corn Growing Degree Days
50 M 149 169 232 304 409 546 741 738 644 465 285 163 4845
50 S 149 318 550 853 1263 1809 2550 3288 3932 4397 4682 4845 4845
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