BUTTONWILLOW, CALIFORNIA

Period of Record General Climate Summary - Growing Degree Days

Station:(041244) BUTTONWILLOW
From Year=1940 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 195 315 498 647 912 1087 1298 1241 1043 778 399 194 8607
40 S 195 510 1007 1654 2567 3654 4952 6193 7236 8015 8413 8607 8607
45 M 88 183 344 497 757 937 1143 1086 893 623 255 87 6894
45 S 88 271 615 1112 1869 2807 3950 5035 5929 6552 6807 6894 6894
50 M 30 81 201 349 602 787 988 931 743 469 135 28 5345
50 S 30 111 312 661 1264 2051 3039 3970 4713 5182 5317 5345 5345
55 M 7 23 90 213 448 637 833 776 593 318 53 6 3997
55 S 7 30 120 333 781 1418 2251 3027 3620 3938 3992 3997 3997
60 M 1 3 27 106 300 488 678 621 444 183 14 1 2865
60 S 1 4 32 138 438 925 1604 2224 2668 2850 2864 2865 2865
Corn Growing Degree Days
50 M 115 189 301 397 568 677 795 763 646 494 264 125 5334
50 S 115 304 605 1003 1570 2247 3042 3805 4451 4946 5209 5334 5334
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