WAUBAY NWR, SOUTH DAKOTA

Period of Record General Climate Summary - Growing Degree Days

Station:(398980) WAUBAY NATL WILDLIFE RE
From Year=1952 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 0 1 26 188 521 787 982 933 611 277 33 1 4360
40 S 0 1 27 215 735 1522 2505 3438 4049 4326 4359 4360 4360
45 M 0 0 9 105 375 637 827 778 464 167 11 0 3374
45 S 0 0 10 114 490 1127 1954 2732 3196 3363 3374 3374 3374
50 M 0 0 3 52 243 488 672 623 325 89 3 0 2497
50 S 0 0 3 55 298 785 1457 2080 2406 2495 2497 2497 2497
55 M 0 0 0 21 136 342 517 468 204 40 0 0 1729
55 S 0 0 0 22 158 499 1017 1485 1689 1728 1729 1729 1729
60 M 0 0 0 7 62 208 364 318 111 14 0 0 1084
60 S 0 0 0 7 69 277 641 959 1070 1084 1084 1084 1084
Corn Growing Degree Days
50 M 0 1 21 125 310 495 650 608 372 167 23 1 2774
50 S 0 2 23 148 458 953 1603 2212 2584 2751 2774 2774 2774
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