GIANT FOREST, CALIFORNIA

Period of Record General Climate Summary - Growing Degree Days

Station:(043397) GIANT FOREST
From Year=1921 To Year=1968
Growing Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
40 M 13 16 51 116 265 477 756 720 559 323 108 29 3432
40 S 13 29 80 196 461 938 1694 2414 2973 3296 3403 3432 3432
45 M 1 2 12 45 150 337 601 565 412 196 43 6 2372
45 S 1 4 16 61 211 548 1149 1714 2126 2322 2366 2372 2372
50 M 0 0 1 10 65 212 446 411 273 96 12 1 1528
50 S 0 0 2 12 76 289 735 1146 1419 1515 1527 1528 1528
55 M 0 0 0 1 19 113 294 261 151 32 2 0 873
55 S 0 0 0 1 20 132 426 688 838 871 873 873 873
60 M 0 0 0 0 3 47 154 129 61 5 0 0 399
60 S 0 0 0 0 3 50 204 334 394 399 399 399 399
Corn Growing Degree Days
50 M 14 17 48 86 164 282 467 445 347 199 70 22 2159
50 S 14 31 79 165 329 611 1077 1522 1868 2067 2137 2159 2159
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