SCOTTSDALE, ARIZONA

Monthly Total Heating Degree Days

(027661)

Base Temperature = 65 F

File last updated on Apr 3, 2013
*** Note *** Provisional Data *** After Year/Month 198511
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
1968 0.00 z 0.00 z 153.00 48.00 0.00 0.00 0.00 0.00 0.00 3.50 205.71 b 527.00 a 937.21
1969 329.12 a 355.19 a 306.50 27.50 17.00 0.00 0.00 a 0.00 0.00 37.72 a 131.67 c 369.50 1574.19
1970 453.24 b 193.20 c 218.03 a 109.50 5.50 0.00 0.00 d 0.00 0.00 44.00 157.00 438.00 1618.47
1971 444.00 283.00 160.88 b 67.00 3.10 a 0.00 i 0.00 b 0.00 b 0.00 c 102.82 a 222.50 516.31 b 1799.61
1972 460.35 a 238.44 b 56.32 a 35.50 0.00 b 0.00 a 0.00 0.00 b 0.00 56.00 303.00 470.17 a 1619.78
1973 512.00 298.67 a 326.57 b 81.72 a 1.50 0.00 z 0.00 0.00 b 0.00 z 0.00 z 203.50 387.50 c 1811.46
1974 445.37 a 306.38 b 123.47 b 32.22 c 1.00 j 0.00 f 0.00 d 0.00 z 0.00 d 30.45 c 192.32 b 522.35 a 1652.56
1975 340.50 i 0.00 z 235.48 e 141.35 d 23.25 c 0.00 c 0.00 j 0.00 d 0.00 h 23.00 f 187.20 e 372.00 959.28
1976 356.50 b 176.50 188.38 e 38.89 c 0.00 b 0.00 c 0.00 i 0.00 b 0.00 j 27.50 h 147.60 e 0.00 z 907.87
1977 397.66 b 211.56 a 250.98 e 26.50 f 4.98 c 0.00 d 0.00 b 0.00 0.00 a 0.50 g 94.00 h 205.00 f 865.17
1978 360.08 e 198.50 f 109.00 60.50 4.50 0.00 0.00 h 0.00 f 0.00 11.88 a 222.12 d 0.00 z 768.08
1979 300.50 n 156.00 p 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 25.26 d 271.00 349.50 645.76
1980 313.50 187.00 192.50 59.00 5.50 0.00 0.00 0.00 a 0.00 74.50 245.50 303.50 1381.00
1981 349.00 265.00 234.50 33.50 1.50 0.00 0.00 0.00 0.00 46.00 185.50 377.00 1492.00
1982 442.00 246.50 152.00 40.50 0.50 0.00 0.00 0.00 0.00 38.00 272.50 481.50 1673.50
1983 420.00 323.00 242.00 150.50 10.50 0.00 0.00 0.00 0.00 0.00 214.50 356.50 1717.00
1984 358.50 277.00 97.00 56.00 3.50 0.00 0.00 0.00 0.00 25.00 197.00 387.50 1401.50
1985 419.00 284.50 136.50 7.00 0.00 0.00 0.00 0.00 0.00 0.00 279.50 0.00 z 1126.50
Period of Record Statistics
MEAN 404.02 260.42 187.24 61.79 5.08 0.00 0.00 0.00 0.00 35.37 214.01 418.45 1559.68
S.D. 57.08 53.98 73.91 40.54 6.63 0.00 0.00 0.00 0.00 29.10 48.04 72.95 123.35
SKEW 0.06 -0.07 0.18 1.06 1.69 0.00 0.00 0.00 0.00 0.78 0.18 0.27 -0.34
MAX 512.00 355.19 326.57 150.50 23.25 0.00 0.00 0.00 0.00 102.82 303.00 527.00 1717.00
MIN 313.50 176.50 56.32 7.00 0.00 0.00 0.00 0.00 0.00 0.00 131.67 303.50 1381.00
NO YRS 15 14 17 16 16 14 14 15 14 14 17 14 8