SHIPROCK, NEW MEXICO

Period of Record General Climate Summary - Growing Degree Days

Station:(298284) SHIPROCK
From Year=1926 To Year=2007
Growing Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
40 M 5 34 158 376 676 920 1136 1073 794 443 99 8 5722
40 S 5 40 198 573 1249 2169 3305 4378 5172 5615 5714 5722 5722
45 M 0 8 68 240 521 770 981 918 644 299 34 1 4484
45 S 0 8 76 316 838 1607 2588 3507 4150 4449 4483 4484 4484
50 M 0 1 20 127 371 620 826 763 494 171 7 0 3401
50 S 0 1 21 149 520 1139 1965 2729 3223 3394 3401 3401 3401
55 M 0 0 4 51 232 470 671 608 346 75 1 0 2457
55 S 0 0 4 55 287 757 1428 2036 2382 2457 2457 2457 2457
60 M 0 0 0 14 118 323 516 453 206 22 0 0 1653
60 S 0 0 0 14 132 455 971 1425 1631 1653 1653 1653 1653
Corn Growing Degree Days
50 M 16 54 165 300 463 574 696 672 528 348 115 17 3947
50 S 16 70 235 535 997 1572 2268 2939 3467 3816 3931 3947 3947
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