SAN GERMAN 4 W, PUERTO RICO

Period of Record General Climate Summary - Growing Degree Days

From Year=1948 To Year=1973
Station:(668757) SAN GERMAN 4 W
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 1055 963 1084 1093 1189 1196 1222 1224 1173 1191 1110 1087 13587
40 S 1055 2019 3102 4195 5385 6581 7803 9027 10200 11390 12500 13587 13587
45 M 900 822 929 943 1034 1046 1067 1069 1023 1036 960 932 11761
45 S 900 1722 2651 3594 4628 5675 6741 7811 8833 9869 10829 11761 11761
50 M 745 681 774 793 879 896 912 914 873 881 810 777 9934
50 S 745 1426 2200 2993 3872 4769 5680 6594 7467 8348 9158 9934 9934
55 M 590 540 619 643 724 746 757 759 723 726 660 622 8108
55 S 590 1130 1749 2391 3116 3862 4619 5378 6101 6827 7486 8108 8108
60 M 435 398 464 493 569 596 602 604 573 571 510 467 6282
60 S 435 834 1297 1790 2360 2956 3558 4162 4735 5305 5815 6282 6282
Corn Growing Degree Days
50 M 719 652 734 743 819 816 825 831 803 818 760 741 9262
50 S 719 1371 2105 2849 3668 4484 5310 6141 6944 7761 8521 9262 9262
Derived form the 1948-1973 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