SILVER LAKE RANGER STN, OREGON

Period of Record General Climate Summary - Growing Degree Days

Station:(357817) SILVER LAKE RANGER STN
From Year=1968 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 10 15 52 134 320 513 754 735 484 223 47 8 3295
40 S 10 25 77 211 531 1044 1798 2533 3017 3240 3287 3295 3295
45 M 1 2 13 62 194 367 599 580 341 118 15 1 2294
45 S 1 3 16 78 272 639 1238 1818 2160 2278 2293 2294 2294
50 M 0 0 1 21 102 235 446 426 213 50 3 0 1497
50 S 0 0 1 22 124 359 805 1231 1444 1494 1497 1497 1497
55 M 0 0 0 5 43 128 299 279 109 14 0 0 878
55 S 0 0 0 5 48 176 475 754 863 877 878 878 878
60 M 0 0 0 0 13 55 169 150 38 2 0 0 427
60 S 0 0 0 0 13 68 237 387 425 427 427 427 427
Corn Growing Degree Days
50 M 6 16 57 127 254 367 507 505 385 216 38 4 2483
50 S 6 22 80 207 461 828 1335 1840 2224 2441 2479 2483 2483
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