WEAVERVILLE RANGER STN, CALIFORNIA

Period of Record General Climate Summary - Growing Degree Days

Station:(049490) WEAVERVILLE RANGER STN
From Year=1894 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 36 89 188 326 556 742 981 937 728 458 154 39 5233
40 S 36 124 312 638 1194 1936 2916 3853 4581 5039 5193 5233 5233
45 M 6 26 86 197 404 592 826 782 578 310 61 9 3876
45 S 6 32 118 315 719 1311 2137 2919 3497 3806 3867 3876 3876
50 M 1 4 29 98 262 443 671 627 429 179 15 1 2760
50 S 1 4 33 132 394 837 1508 2135 2564 2743 2759 2760 2760
55 M 0 0 6 36 146 300 516 472 287 80 2 0 1845
55 S 0 0 6 42 187 488 1003 1476 1762 1843 1844 1845 1845
60 M 0 0 1 8 64 176 362 320 160 25 0 0 1117
60 S 0 0 1 9 73 249 611 931 1092 1117 1117 1117 1117
Corn Growing Degree Days
50 M 27 82 163 258 392 475 573 557 488 363 118 20 3516
50 S 27 109 272 530 922 1396 1970 2527 3015 3378 3495 3516 3516
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