IDYLLWILD FIRE DEPT, CALIFORNIA

Period of Record General Climate Summary - Growing Degree Days

Station:(044211) IDYLLWILD FIRE DEPT
From Year=1943 To Year=2012
Growing Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
40 M 99 102 155 266 452 667 888 872 709 472 221 119 5021
40 S 99 202 357 623 1075 1742 2630 3501 4210 4682 4902 5021 5021
45 M 36 38 68 149 308 518 733 717 559 324 116 43 3609
45 S 36 73 141 291 599 1117 1850 2567 3126 3450 3566 3609 3609
50 M 8 8 19 66 182 372 578 562 412 193 45 9 2454
50 S 8 16 35 101 284 656 1234 1796 2208 2401 2445 2454 2454
55 M 1 1 2 20 86 236 423 407 271 91 10 1 1550
55 S 1 1 4 24 110 347 770 1177 1449 1539 1549 1550 1550
60 M 0 0 0 3 28 122 271 257 147 30 1 0 859
60 S 0 0 0 3 31 153 424 681 828 858 859 859 859
Corn Growing Degree Days
50 M 93 96 140 212 319 443 576 569 467 332 178 109 3535
50 S 93 189 329 541 860 1303 1879 2448 2916 3248 3426 3535 3535
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