TWENTYNINE PALMS, CALIFORNIA

Period of Record General Climate Summary - Growing Degree Days

Station:(049099) TWENTYNINE PALMS
From Year=1948 To Year=2005
Growing Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
40 M 298 380 577 771 1057 1283 1505 1453 1214 908 501 296 10243
40 S 298 678 1255 2025 3082 4366 5871 7324 8538 9445 9947 10243 10243
45 M 166 246 423 621 902 1133 1350 1298 1064 753 354 162 8472
45 S 166 412 836 1456 2358 3491 4841 6139 7203 7956 8310 8472 8472
50 M 70 130 277 471 747 983 1195 1143 914 599 219 63 6810
50 S 70 199 476 947 1694 2678 3873 5016 5930 6528 6747 6810 6810
55 M 18 50 151 328 592 833 1040 988 764 446 109 15 5336
55 S 18 68 220 547 1139 1973 3013 4001 4765 5211 5320 5336 5336
60 M 2 12 63 200 439 683 885 833 614 301 39 3 4074
60 S 2 15 78 277 716 1400 2285 3118 3732 4033 4072 4074 4074
Corn Growing Degree Days
50 M 207 256 380 490 654 763 894 873 740 569 333 210 6367
50 S 207 463 842 1332 1986 2748 3642 4515 5255 5825 6157 6367 6367
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 Apr 5, 2006
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