GRAND CANYON AIRWAYS, ARIZONA

Monthly Total Heating Degree Days

(023586)

Base Temperature = 65 F

File last updated on Apr 3, 2013
*** Note *** Provisional Data *** After Year/Month 196704
a = 1 day missing, b = 2 days missing, c = 3 days, ..etc..,
z = 26 or more days missing, A = Accumulations present
Long-term means based on columns; thus, the monthly row may not
sum (or average) to the long-term annual value.
Months with 5 missing days or less use mean for missing day(s)
Individual Months not used for annual or monthly statistics if more than 5 days are missing.
Individual Years not used for annual statistics if any month in that year has more than 5 days missing.
YEAR(S JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANN
1948 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 4.50 18.00 102.00 434.00 883.50 903.00 g 1442.00
1949 1414.78 b 1152.26 e 580.00 k 458.00 344.50 116.50 9.00 9.00 73.00 571.00 565.50 1114.00 5827.54
1950 1118.50 807.00 782.50 432.50 350.00 82.24 a 11.00 31.50 164.50 212.00 604.00 773.00 5368.74
1951 1028.00 866.50 866.00 570.00 325.00 112.50 k 0.00 b 36.00 46.50 446.50 618.50 g 1110.50 5295.00
1952 1147.00 d 353.50 r 0.00 z 392.50 j 235.00 53.00 13.00 27.00 99.50 243.00 909.00 1102.00 3828.50
1953 853.00 868.50 771.50 571.00 471.50 66.50 6.00 21.50 39.50 414.50 641.50 1051.50 5776.50
1954 985.00 699.50 900.00 372.00 173.50 102.00 3.50 5.00 71.50 329.50 631.50 1023.50 5296.50
1955 1191.50 1088.00 811.00 627.50 358.00 123.00 6.00 3.50 95.50 273.00 763.00 864.00 6204.00
1956 864.50 1019.50 729.50 590.00 218.00 11.50 7.00 9.30 a 26.25 b 404.00 812.00 991.50 5683.05
1957 1061.00 713.00 764.00 623.50 474.50 69.00 4.00 29.93 b 68.50 h 524.00 921.50 863.50 6047.93
1958 1014.00 774.50 973.50 628.50 186.00 38.50 7.50 2.00 172.50 441.50 815.00 835.00 5888.50
1959 1017.00 972.50 827.00 501.00 370.00 23.00 0.00 22.00 169.00 452.00 776.00 991.50 6121.00
1960 1235.50 1087.50 756.00 569.00 331.50 39.00 0.00 11.00 97.50 571.00 764.50 1110.50 6573.00
1961 1040.00 864.00 898.50 627.50 373.00 63.50 9.50 55.50 278.00 567.50 901.00 1180.00 6858.00
1962 1118.00 935.50 1049.00 477.00 444.50 153.00 14.00 15.50 129.00 481.00 711.50 1016.50 6544.50
1963 1215.50 805.50 950.00 748.00 279.50 156.50 0.00 64.00 159.50 399.00 792.50 1030.50 6600.50
1964 1224.00 1137.50 1077.50 770.50 453.50 162.93 a 4.50 54.50 245.56 c 396.00 967.50 1116.50 7610.49
1965 1065.00 1012.00 1037.00 796.50 557.00 308.50 38.00 69.00 352.00 438.00 803.00 1090.50 7566.50
1966 1237.50 1160.50 867.50 633.50 315.50 121.50 11.50 14.00 161.00 546.50 780.50 1097.00 6946.50
1967 1082.00 869.50 781.50 785.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 3518.50
Period of Record Statistics
MEAN 1100.62 935.18 873.06 598.97 347.81 99.42 7.84 26.22 137.91 428.63 780.17 1020.08 6359.84
S.D. 135.84 149.96 110.73 122.69 105.58 71.55 8.53 20.81 86.20 106.69 114.68 114.93 731.95
SKEW 0.19 0.08 0.53 0.02 0.09 1.40 2.36 0.81 0.95 -0.48 -0.29 -0.81 0.26
MAX 1414.78 1160.50 1077.50 796.50 557.00 308.50 38.00 69.00 352.00 571.00 967.50 1180.00 7610.49
MIN 853.00 699.50 729.50 372.00 173.50 11.50 0.00 2.00 26.25 212.00 565.50 773.00 5296.50
NO YRS 19 18 17 18 18 17 19 19 18 19 18 18 14