QUINCY, CALIFORNIA

Period of Record General Climate Summary - Growing Degree Days

Station:(047195) QUINCY
From Year=1948 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 19 60 141 247 488 681 852 795 619 386 111 23 4421
40 S 19 79 219 466 954 1635 2488 3282 3901 4287 4398 4421 4421
45 M 3 15 53 132 338 532 697 640 469 242 39 5 3167
45 S 3 18 72 204 542 1074 1771 2411 2880 3122 3161 3167 3167
50 M 0 2 13 51 204 384 542 485 324 123 8 1 2137
50 S 0 2 15 66 270 654 1197 1681 2005 2128 2136 2137 2137
55 M 0 0 1 12 100 245 388 331 190 46 1 0 1314
55 S 0 0 1 13 113 358 746 1077 1267 1313 1314 1314 1314
60 M 0 0 0 1 37 127 239 187 84 10 0 0 687
60 S 0 0 0 1 38 166 405 593 677 687 687 687 687
Corn Growing Degree Days
50 M 18 68 140 219 369 464 554 540 472 356 110 17 3329
50 S 18 86 226 445 814 1278 1832 2373 2845 3201 3311 3329 3329
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