BEN LOMOND 4, CALIFORNIA

Period of Record General Climate Summary - Growing Degree Days

Station:(040673) BEN LOMOND 4
From Year=1972 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 291 322 421 505 656 755 861 869 798 665 408 282 6833
40 S 291 613 1033 1538 2194 2950 3811 4680 5478 6143 6551 6833 6833
45 M 149 186 268 355 501 605 706 714 648 510 260 141 5043
45 S 149 335 602 957 1458 2064 2770 3484 4132 4642 4902 5043 5043
50 M 48 76 131 210 346 455 551 559 498 355 132 43 3406
50 S 48 124 256 466 812 1267 1819 2377 2876 3231 3363 3406 3406
55 M 7 18 43 91 198 306 396 404 348 206 44 5 2066
55 S 7 25 68 159 356 662 1058 1462 1810 2017 2060 2066 2066
60 M 0 2 8 26 83 163 241 249 201 87 8 0 1069
60 S 0 2 10 36 120 282 524 773 974 1061 1069 1069 1069
Corn Growing Degree Days
50 M 182 198 258 326 409 466 533 538 493 428 266 181 4278
50 S 182 379 638 964 1372 1838 2371 2909 3402 3831 4097 4278 4278
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