GRANDFALLS 3 SSE, TEXAS

Period of Record General Climate Summary - Heating Degree Days

Station:(413680) GRANDFALLS 3 SSE
From Year=1909 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
65 656 460 277 89 15 0 0 0 12 85 352 619 2567
60 503 326 165 41 4 0 0 0 4 36 227 465 1772
57 413 253 115 25 2 0 0 0 2 20 165 375 1371
55 356 209 89 18 1 0 0 0 1 13 129 319 1134
50 228 117 44 7 0 0 0 0 0 4 64 193 657
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