KLAMATH, CALIFORNIA

Period of Record General Climate Summary - Growing Degree Days

Station:(044577) KLAMATH
From Year=1948 To Year=2006
Growing Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
40 M 206 227 261 308 422 509 589 602 554 469 311 214 4672
40 S 206 433 694 1002 1424 1933 2522 3124 3678 4147 4459 4672 4672
45 M 89 108 122 164 269 359 434 447 404 315 172 89 2971
45 S 89 197 319 483 751 1110 1544 1991 2395 2710 2882 2971 2971
50 M 22 32 33 53 125 211 280 292 255 167 64 22 1556
50 S 22 54 87 140 265 475 755 1048 1302 1469 1533 1556 1556
55 M 3 5 4 9 30 75 128 140 113 55 12 2 576
55 S 3 7 11 19 50 124 253 393 507 561 573 576 576
60 M 0 0 0 1 5 10 20 26 26 10 1 0 99
60 S 0 0 1 2 6 17 36 63 88 98 99 99 99
Corn Growing Degree Days
50 M 80 95 107 131 189 241 292 303 282 230 135 82 2167
50 S 80 175 283 413 603 844 1135 1438 1720 1950 2085 2167 2167
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