HAYFIELD PUMP PLT, CALIFORNIA

Period of Record General Climate Summary - Growing Degree Days

Station:(043855) HAYFIELD RESERVOIR
From Year=1933 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 381 444 632 813 1087 1291 1544 1509 1282 978 601 398 10962
40 S 381 825 1457 2271 3357 4649 6193 7702 8984 9962 10563 10962 10962
45 M 237 306 477 663 932 1141 1389 1354 1132 823 452 250 9158
45 S 237 543 1020 1684 2616 3757 5146 6500 7632 8455 8907 9158 9158
50 M 117 179 327 514 777 991 1234 1199 982 668 306 125 7419
50 S 117 296 623 1136 1913 2904 4139 5338 6320 6988 7294 7419 7419
55 M 42 81 192 367 622 841 1079 1044 832 514 175 44 5834
55 S 42 123 315 683 1304 2146 3225 4269 5101 5615 5790 5834 5834
60 M 10 26 91 233 468 691 924 889 682 364 78 9 4466
60 S 10 36 127 360 828 1520 2444 3333 4015 4379 4457 4466 4466
Corn Growing Degree Days
50 M 246 281 396 511 682 789 947 934 791 616 383 260 6835
50 S 246 527 923 1434 2116 2905 3852 4786 5577 6193 6576 6835 6835
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