IDYLLWILD FIRE DEPT, CALIFORNIA

Period of Record General Climate Summary - Growing Degree Days

Station:(044211) IDYLLWILD FIRE DEPT
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 95 104 152 262 446 663 880 868 703 475 221 118 4987
40 S 95 199 351 612 1058 1722 2602 3470 4173 4648 4869 4987 4987
45 M 33 39 67 147 303 514 725 713 554 328 115 42 3581
45 S 33 73 139 286 589 1103 1829 2541 3095 3423 3538 3581 3581
50 M 7 9 20 64 178 369 570 558 406 197 43 8 2429
50 S 7 16 36 99 278 647 1217 1775 2182 2378 2421 2429 2429
55 M 0 1 3 19 83 234 415 403 266 94 9 1 1528
55 S 0 2 4 23 106 340 755 1159 1425 1519 1528 1528 1528
60 M 0 0 0 3 26 121 263 253 143 31 1 0 841
60 S 0 0 0 3 29 149 412 666 809 840 841 841 841
Corn Growing Degree Days
50 M 89 96 136 210 316 441 571 566 463 334 178 110 3510
50 S 89 185 322 531 847 1289 1859 2425 2888 3222 3399 3510 3510
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