MAUNA LOA SLOPE OBS, HAWAII

Period of Record General Climate Summary - Heating Degree Days

Station:(516198) MAUNA LOA SLOPE OBS
From Year=1955 To Year=2012
Heating Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
65 726 672 723 653 614 502 540 539 537 582 618 700 7405
60 571 530 568 503 459 352 385 384 387 427 468 545 5579
57 478 446 475 413 366 262 292 291 297 334 378 452 4483
55 416 389 413 353 304 202 231 229 237 272 318 390 3754
50 262 248 259 206 154 74 89 86 95 122 170 236 2001
Heating Degree Day units are computed as the difference between the base temperature and the daily average temperature. (Base Temp. - Daily Ave. Temp.) One unit is accumulated for each degree Fahrenheit the average temperature is below the base temperature. Negative numbers are discarded. Example: If the days high temperature was 65 and the low temperature was 31, the base 50 heating degree day units is 50 - ((65 + 31) / 2) = 2. This is done for each day of the month and summed.
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