CAYEY 1 E, PUERTO RICO

Period of Record General Climate Summary - Growing Degree Days

From Year=1955 To Year=2007
Station:(661901) CAYEY 1 E
Averages Daily Extremes
Growing Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
40 M 905 828 939 965 1068 1086 1129 1128 1076 1081 988 943 12138
40 S 905 1734 2672 3637 4706 5792 6921 8050 9126 10207 11195 12138 12138
45 M 750 687 784 815 913 936 974 973 926 926 838 788 10311
45 S 750 1437 2221 3036 3950 4886 5860 6833 7760 8686 9523 10311 10311
50 M 595 546 629 665 758 786 819 818 776 771 688 633 8485
50 S 595 1141 1770 2435 3193 3980 4799 5617 6394 7164 7852 8485 8485
55 M 440 405 474 515 603 636 664 663 626 616 538 478 6659
55 S 440 845 1319 1834 2437 3073 3737 4401 5027 5643 6181 6659 6659
60 M 285 263 319 365 448 486 509 508 476 461 388 323 4833
60 S 285 549 867 1233 1681 2167 2676 3185 3661 4122 4510 4833 4833
Corn Growing Degree Days
50 M 595 546 628 664 756 782 814 812 769 767 687 633 8453
50 S 595 1141 1769 2433 3190 3972 4786 5597 6366 7133 7820 8453 8453
Derived form the 1955-2007 Data
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 May 22,
Months with 5 or more missing days are not considered
Years with 1 or more missing months are not considered

Southeast Regional Climate Center, SERCC Webmaster