MAYAGUEZ CITY, PUERTO RICO

Period of Record General Climate Summary - Growing Degree Days

From Year=1948 To Year=2012
Station:(666073) MAYAGUEZ CITY
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 1086 993 1118 1117 1200 1191 1240 1246 1202 1229 1144 1125 13892
40 S 1086 2080 3197 4314 5514 6705 7945 9191 10393 11622 12766 13892 13892
45 M 931 852 963 967 1045 1041 1085 1091 1052 1074 994 970 12065
45 S 931 1783 2746 3713 4758 5799 6884 7975 9027 10101 11095 12065 12065
50 M 776 711 808 817 890 891 930 936 902 919 844 815 10239
50 S 776 1487 2295 3112 4002 4892 5823 6759 7661 8579 9424 10239 10239
55 M 621 569 653 667 735 741 775 781 752 764 694 660 8413
55 S 621 1191 1843 2510 3245 3986 4761 5542 6294 7058 7753 8413 8413
60 M 466 428 498 517 580 591 620 626 602 609 544 505 6586
60 S 466 894 1392 1909 2489 3080 3700 4326 4928 5537 6081 6586 6586
Corn Growing Degree Days
50 M 767 698 782 783 840 826 863 867 838 863 811 800 9739
50 S 767 1465 2247 3030 3870 4697 5559 6426 7265 8128 8939 9739 9739
Derived form the 1948-2012 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