ZION NATIONAL PARK, UTAH

Period of Record General Climate Summary - Cooling Degree Days

Station:(429717) ZION NATIONAL PARK
From Year=1928 To Year=2006
Cooling Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
55 1 8 42 158 401 676 902 841 608 295 40 1 3973
57 0 3 26 121 345 616 840 779 548 245 25 0 3547
60 0 1 10 73 265 527 747 686 459 176 10 0 2954
65 0 0 1 23 148 381 592 531 314 82 1 0 2073
70 0 0 0 4 61 244 438 376 179 25 0 0 1327
Cooling 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.
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