GEORGETOWN RANGER STN, CALIFORNIA

Period of Record General Climate Summary - Growing Degree Days

Station:(043384) GEORGETOWN RANGER STN
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 155 133 256 398 593 818 1081 1075 892 643 283 169 6497
40 S 155 288 545 943 1536 2354 3435 4509 5402 6045 6328 6497 6497
45 M 80 50 139 264 441 668 926 920 742 492 165 81 4968
45 S 80 130 269 533 975 1643 2569 3488 4231 4723 4887 4968 4968
50 M 29 12 57 154 303 520 771 765 594 351 84 29 3668
50 S 29 41 98 253 556 1076 1847 2611 3205 3556 3640 3668 3668
55 M 4 1 12 76 188 378 616 610 449 227 35 5 2602
55 S 4 6 17 94 281 659 1275 1885 2334 2561 2597 2602 2602
60 M 0 0 0 30 101 248 462 457 311 127 10 1 1747
60 S 0 0 0 30 131 380 842 1298 1609 1736 1747 1747 1747
Corn Growing Degree Days
50 M 87 74 143 237 357 517 701 690 569 390 148 84 3997
50 S 87 161 303 540 897 1414 2115 2805 3374 3764 3913 3997 3997
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