ALAMO, NEVADA

Period of Record General Climate Summary - Growing Degree Days

Station:(260099) ALAMO
From Year=1921 To Year=1962
Growing Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
40 M 39 103 238 468 714 944 1203 1117 850 549 209 67 6501
40 S 39 142 381 848 1562 2506 3709 4826 5676 6225 6433 6501 6501
45 M 8 37 120 324 559 794 1048 962 700 396 102 18 5068
45 S 8 45 164 488 1048 1841 2889 3851 4551 4948 5050 5068 5068
50 M 1 9 42 195 408 644 893 807 550 252 39 2 3842
50 S 1 9 52 246 655 1299 2192 2999 3549 3801 3840 3842 3842
55 M 0 1 9 94 265 495 738 652 401 130 10 0 2794
55 S 0 1 10 104 369 864 1602 2254 2655 2785 2794 2794 2794
60 M 0 0 1 31 140 350 583 497 257 48 2 0 1910
60 S 0 0 1 32 172 522 1105 1602 1859 1907 1910 1910 1910
Corn Growing Degree Days
50 M 69 115 228 362 487 567 680 657 546 424 220 96 4451
50 S 69 184 412 774 1261 1828 2508 3165 3710 4135 4355 4451 4451
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