ZION NATIONAL PARK, UTAH

Period of Record General Climate Summary - Heating Degree Days

Station:(429717) ZION NATIONAL PARK
From Year=1928 To Year=2006
Heating Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
65 761 571 452 227 67 5 1 0 7 123 455 727 3398
60 606 431 307 127 29 1 1 0 2 62 314 572 2452
57 513 349 229 84 16 0 1 0 1 38 239 479 1950
55 452 297 183 62 10 0 1 0 1 26 195 418 1645
50 305 180 93 25 2 0 1 0 0 9 105 274 994
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 Jul 28, 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