CAPITAN, NEW MEXICO

Period of Record General Climate Summary - Growing Degree Days

Station:(291440) CAPITAN
From Year=1909 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 38 70 166 351 604 820 896 844 652 407 138 41 5027
40 S 38 108 274 625 1230 2050 2946 3791 4442 4849 4986 5027 5027
45 M 8 21 70 216 450 670 741 689 502 262 55 9 3694
45 S 8 29 99 315 765 1435 2177 2866 3368 3629 3684 3694 3694
50 M 1 5 19 105 300 520 586 534 353 134 13 2 2571
50 S 1 5 25 129 429 949 1535 2070 2422 2556 2570 2571 2571
55 M 0 1 3 35 164 370 431 379 207 46 1 0 1638
55 S 0 1 4 39 202 573 1004 1383 1590 1636 1637 1638 1638
60 M 0 0 0 7 64 224 276 225 82 7 0 0 887
60 S 0 0 0 8 72 296 573 798 880 887 887 887 887
Corn Growing Degree Days
50 M 50 78 164 278 412 521 569 533 409 293 127 49 3483
50 S 50 129 292 570 982 1503 2071 2605 3014 3307 3434 3483 3483
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