TEHACHAPI, CALIFORNIA

Period of Record General Climate Summary - Growing Degree Days

Station:(048826) TEHACHAPI
From Year=1893 To Year=1997
Growing Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
40 M 95 122 177 307 535 767 996 949 727 489 227 109 5500
40 S 95 217 394 700 1235 2002 2999 3948 4674 5164 5391 5500 5500
45 M 32 48 79 182 385 617 841 794 577 340 117 38 4049
45 S 32 80 159 340 725 1342 2183 2977 3555 3894 4011 4049 4049
50 M 6 12 23 86 248 468 686 639 429 203 44 7 2851
50 S 6 18 41 127 375 843 1529 2168 2597 2800 2844 2851 2851
55 M 0 2 3 29 135 325 531 484 286 96 10 1 1902
55 S 0 2 5 34 169 493 1025 1509 1795 1891 1901 1902 1902
60 M 0 0 0 6 57 197 377 331 160 33 1 0 1162
60 S 0 0 0 6 63 260 637 968 1128 1161 1162 1162 1162
Corn Growing Degree Days
50 M 68 85 119 199 329 479 647 612 466 326 158 78 3566
50 S 68 154 272 471 800 1279 1927 2539 3005 3331 3488 3566 3566
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