FT ROSS, CALIFORNIA

Period of Record General Climate Summary - Growing Degree Days

Station:(043191) FORT ROSS
From Year=1895 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 288 293 333 353 425 490 534 557 556 516 391 298 5035
40 S 288 581 915 1268 1693 2183 2717 3274 3830 4346 4737 5035 5035
45 M 142 157 180 204 270 340 379 402 406 361 242 152 3234
45 S 142 299 479 683 953 1293 1672 2074 2480 2841 3083 3234 3234
50 M 40 50 58 71 120 190 224 247 256 207 105 44 1612
50 S 40 90 148 219 338 528 752 999 1256 1463 1568 1612 1612
55 M 5 6 7 12 24 56 77 97 113 77 23 5 504
55 S 5 11 19 31 55 111 188 286 399 476 500 504 504
60 M 1 0 1 2 3 7 8 14 27 17 2 0 82
60 S 1 1 1 3 6 13 21 35 62 79 81 82 82
Corn Growing Degree Days
50 M 110 121 145 166 202 242 265 279 288 261 179 120 2378
50 S 110 231 376 542 744 986 1251 1530 1818 2079 2259 2378 2378
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