DUNSMUIR TREATMENT PLAN, CALIFORNIA

Period of Record General Climate Summary - Growing Degree Days

Station:(042574) DUNSMUIR TREATMENT PLAN
From Year=1978 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 61 98 197 333 585 776 986 943 751 501 172 63 5466
40 S 61 159 356 689 1274 2050 3036 3979 4730 5231 5403 5466 5466
45 M 11 33 91 202 431 626 831 788 601 349 75 14 4053
45 S 11 44 135 337 768 1394 2226 3013 3615 3963 4039 4053 4053
50 M 1 7 30 102 287 477 676 633 452 211 22 1 2899
50 S 1 8 37 140 426 904 1580 2212 2664 2875 2898 2899 2899
55 M 0 0 6 39 165 333 521 478 307 101 3 0 1953
55 S 0 0 6 45 210 543 1065 1542 1849 1950 1953 1953 1953
60 M 0 0 0 9 78 201 368 324 175 36 0 0 1190
60 S 0 0 0 9 87 288 655 979 1154 1190 1190 1190 1190
Corn Growing Degree Days
50 M 50 81 146 227 368 482 602 572 478 345 117 47 3515
50 S 50 131 277 504 872 1354 1956 2528 3006 3351 3468 3515 3515
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