SAN JACINTO, CALIFORNIA

Period of Record General Climate Summary - Growing Degree Days

Station:(047810) SAN JACINTO
From Year=1893 To Year=1978
Growing Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
40 M 310 339 450 571 761 935 1164 1156 983 768 501 337 8274
40 S 310 649 1099 1669 2430 3366 4530 5686 6668 7436 7937 8274 8274
45 M 173 206 298 421 606 785 1009 1001 833 613 353 194 6491
45 S 173 378 676 1097 1703 2488 3497 4498 5331 5944 6297 6491 6491
50 M 70 94 163 276 451 635 854 846 683 458 215 83 4828
50 S 70 164 327 602 1054 1689 2543 3389 4072 4530 4745 4828 4828
55 M 18 28 66 149 300 485 699 691 533 308 102 21 3401
55 S 18 46 112 261 561 1047 1746 2437 2970 3278 3380 3401 3401
60 M 3 5 18 61 164 337 544 536 384 175 34 3 2263
60 S 3 8 26 86 251 587 1132 1668 2051 2226 2260 2263 2263
Corn Growing Degree Days
50 M 236 242 302 367 469 554 667 671 586 487 359 258 5199
50 S 236 477 780 1147 1616 2170 2837 3508 4094 4582 4941 5199 5199
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