SQUAW BUTTE EXPERIMENT, OREGON

Period of Record General Climate Summary - Growing Degree Days

Station:(358029) SQUAW BUTTE EXPERIMENT
From Year=1937 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 3 10 42 144 331 533 830 805 558 273 44 4 3578
40 S 3 13 55 199 531 1064 1894 2699 3257 3530 3574 3578 3578
45 M 0 1 13 70 206 387 675 651 414 160 13 0 2589
45 S 0 2 15 84 290 677 1352 2002 2417 2576 2589 2589 2589
50 M 0 0 2 26 111 255 521 497 282 78 2 0 1774
50 S 0 0 2 28 140 394 915 1412 1694 1772 1774 1774 1774
55 M 0 0 0 6 51 148 371 349 169 29 0 0 1124
55 S 0 0 0 7 57 205 576 925 1094 1124 1124 1124 1124
60 M 0 0 0 1 18 72 234 215 84 8 0 0 631
60 S 0 0 0 1 19 91 325 539 623 631 631 631 631
Corn Growing Degree Days
50 M 1 8 36 119 235 351 536 520 375 198 36 3 2419
50 S 1 9 46 165 400 751 1287 1807 2182 2381 2416 2419 2419
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