HAWAII VOL NP HQ 54, HAWAII

Period of Record General Climate Summary - Growing Degree Days

Station:(511303) HAWAII VOLCNS NP HQ 54
From Year=1949 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 569 515 574 580 644 661 717 738 707 715 636 594 7650
40 S 569 1084 1659 2238 2882 3543 4260 4998 5705 6420 7056 7650 7650
45 M 414 374 419 430 489 511 562 583 557 560 486 439 5824
45 S 414 788 1208 1637 2126 2637 3199 3782 4339 4899 5385 5824 5824
50 M 260 232 265 280 334 361 407 428 407 405 336 284 3998
50 S 260 492 756 1036 1370 1731 2138 2566 2973 3378 3713 3998 3998
55 M 108 97 113 131 179 211 252 273 257 250 186 132 2189
55 S 108 205 318 449 628 839 1091 1364 1621 1871 2057 2189 2189
60 M 13 13 14 21 44 66 100 120 108 98 52 22 671
60 S 13 25 40 61 104 171 271 390 499 597 649 671 671
Corn Growing Degree Days
50 M 285 255 281 287 337 362 408 429 408 406 339 298 4095
50 S 285 541 821 1108 1445 1807 2215 2644 3051 3457 3797 4095 4095
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