VOLTA POWER HOUSE, CALIFORNIA

Period of Record General Climate Summary - Growing Degree Days

Station:(049390) VOLTA POWER HOUSE
From Year=1948 To Year=2005
Growing Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
40 M 137 204 270 445 690 907 1162 1111 942 668 338 176 7049
40 S 137 340 611 1055 1745 2652 3814 4925 5867 6535 6873 7049 7049
45 M 53 99 146 307 536 757 1007 956 792 514 206 81 5453
45 S 53 152 298 605 1140 1897 2904 3860 4652 5166 5372 5453 5453
50 M 15 34 64 189 387 607 852 801 642 365 103 25 4084
50 S 15 49 113 302 689 1296 2148 2949 3591 3956 4059 4084 4084
55 M 2 7 21 97 253 460 697 646 494 229 39 5 2950
55 S 2 9 30 128 380 840 1537 2183 2677 2906 2945 2950 2950
60 M 0 1 4 38 145 319 542 492 348 121 11 1 2021
60 S 0 1 5 43 187 506 1047 1539 1888 2009 2020 2021 2021
Corn Growing Degree Days
50 M 72 114 156 271 427 567 724 694 592 406 186 97 4307
50 S 72 186 342 613 1040 1608 2332 3026 3618 4024 4211 4307 4307
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 Apr 5, 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