FORT JONES RANGER STN, CALIFORNIA

Period of Record General Climate Summary - Growing Degree Days

Station:(043182) FORT JONES RANGER STN
From Year=1936 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 16 48 126 264 469 674 918 861 631 356 92 22 4476
40 S 16 64 190 454 923 1597 2514 3375 4006 4362 4454 4476 4476
45 M 2 10 43 142 320 524 763 706 481 219 30 4 3243
45 S 2 12 55 197 517 1041 1804 2509 2990 3209 3239 3243 3243
50 M 0 1 8 59 188 377 608 551 335 107 6 0 2239
50 S 0 1 9 68 256 632 1240 1791 2126 2233 2239 2239 2239
55 M 0 0 0 14 89 239 453 397 202 37 1 0 1431
55 S 0 0 0 15 104 343 796 1193 1394 1431 1431 1431 1431
60 M 0 0 0 1 29 127 301 249 93 6 0 0 807
60 S 0 0 0 1 30 157 458 707 800 807 807 807 807
Corn Growing Degree Days
50 M 9 50 130 231 354 449 562 541 463 319 94 12 3212
50 S 9 58 188 419 773 1221 1783 2324 2787 3106 3200 3212 3212
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