SPEARMAN, TEXAS

Period of Record General Climate Summary - Heating Degree Days

Station:(418523) SPEARMAN
From Year=1920 To Year=2003
Heating Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
65 920 718 563 262 88 7 0 1 35 203 575 854 4226
60 765 578 418 156 37 1 0 0 14 111 429 699 3208
57 672 495 338 108 20 0 0 0 7 71 347 607 2667
55 611 441 289 83 13 0 0 0 5 52 296 546 2336
50 463 314 183 40 4 0 0 0 2 21 186 399 1612
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