MONTEBELLO, CALIFORNIA

Period of Record General Climate Summary - Growing Degree Days

Station:(045790) MONTEBELLO
From Year=1979 To Year=2011
Growing Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
40 M 577 565 671 759 875 968 1127 1160 1073 943 703 589 10010
40 S 577 1142 1813 2572 3448 4416 5542 6702 7775 8718 9421 10010 10010
45 M 422 424 516 609 720 818 972 1005 923 788 553 434 8184
45 S 422 846 1362 1971 2692 3510 4482 5486 6409 7197 7750 8184 8184
50 M 269 285 361 459 565 668 817 850 773 633 403 282 6365
50 S 269 554 915 1374 1939 2607 3424 4274 5047 5680 6083 6365 6365
55 M 131 157 211 311 410 518 662 695 623 478 255 142 4594
55 S 131 288 499 810 1220 1738 2400 3095 3718 4196 4451 4594 4594
60 M 43 65 90 174 256 368 507 540 473 324 122 48 3010
60 S 43 108 198 372 629 996 1503 2043 2516 2840 2962 3010 3010
Corn Growing Degree Days
50 M 321 319 384 457 553 642 762 782 713 607 417 336 6293
50 S 321 640 1024 1481 2034 2676 3438 4219 4932 5540 5957 6293 6293
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