VIEQUES ISLAND, PUERTO RICO

Period of Record General Climate Summary - Growing Degree Days

From Year=1955 To Year=1976
Station:(669763) VIEQUES ISLAND
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 1110 1015 1138 1134 1221 1217 1258 1262 1221 1242 1162 1138 14118
40 S 1110 2125 3263 4398 5619 6835 8094 9356 10576 11818 12980 14118 14118
45 M 955 873 983 984 1066 1067 1103 1107 1071 1087 1012 983 12292
45 S 955 1828 2812 3796 4862 5929 7032 8139 9210 10297 11309 12292 12292
50 M 800 732 828 834 911 917 948 952 921 932 862 828 10465
50 S 800 1532 2360 3195 4106 5022 5971 6923 7843 8775 9637 10465 10465
55 M 645 590 673 684 756 767 793 797 771 777 712 673 8639
55 S 645 1235 1909 2593 3349 4116 4909 5706 6477 7254 7966 8639 8639
60 M 490 449 518 534 601 617 638 642 621 622 562 518 6812
60 S 490 939 1457 1992 2593 3209 3848 4490 5110 5732 6294 6812 6812
Corn Growing Degree Days
50 M 794 726 812 807 872 865 893 893 861 879 829 818 10049
50 S 794 1519 2331 3138 4010 4875 5768 6661 7523 8402 9231 10049 10049
Derived form the 1955-1976 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