VISTA 2 NNE, CALIFORNIA

Period of Record General Climate Summary - Cooling Degree Days

Station:(049378) VISTA 1 NE
From Year=1957 To Year=2012
Cooling Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
55 80 78 97 153 252 343 489 535 483 354 171 74 3111
57 52 49 61 108 192 284 427 473 423 293 123 45 2529
60 25 23 26 55 112 196 334 380 333 203 65 18 1772
65 5 5 5 14 28 70 180 226 186 81 18 3 821
70 0 1 1 3 4 15 56 88 74 24 4 0 269
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 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