SOUTH PHOENIX, ARIZONA

Monthly Total Heating Degree Days

(028112)

Base Temperature = 65 F

File last updated on Apr 3, 2013
*** Note *** Provisional Data *** After Year/Month 200705
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
1961 188.50 l 278.50 190.00 36.00 2.00 0.00 0.00 a 0.00 b 0.00 60.00 312.00 470.00 1348.50
1962 469.00 316.00 339.00 8.50 12.00 0.00 0.00 0.00 0.00 5.00 159.00 349.50 1658.00
1963 589.00 202.00 243.50 98.50 0.00 0.00 0.00 0.00 0.00 3.50 208.50 463.97 a 1808.97
1964 603.43 b 500.00 337.00 119.00 45.00 0.00 0.00 0.00 z 0.00 z 0.00 z 337.50 430.00 2371.93
1965 388.50 329.00 293.50 136.50 33.58 a 0.00 0.00 0.00 0.00 z 12.00 153.50 362.50 1709.08
1966 500.00 416.50 149.00 24.00 0.50 0.00 0.00 0.00 0.00 23.50 167.00 417.00 1697.50
1967 487.00 270.00 152.50 137.50 21.50 0.00 0.00 0.00 0.00 11.00 101.00 564.50 1745.00
1968 403.50 175.00 187.50 61.00 1.00 0.00 a 0.00 0.00 0.00 4.50 213.00 488.50 1534.00
1969 308.50 323.50 277.00 15.50 15.50 0.00 0.00 0.00 0.00 37.50 150.50 334.28 a 1462.28
1970 425.50 165.00 174.50 97.00 2.00 0.00 0.00 0.00 0.00 39.50 159.00 374.50 1437.00
1971 430.50 287.50 162.00 52.00 6.00 0.00 0.00 0.00 0.00 79.50 207.00 451.00 1675.50
1972 442.00 196.50 41.50 33.50 0.00 0.00 0.00 0.00 0.00 49.50 0.00 z 458.00 1221.00
1973 466.55 a 253.00 297.50 74.00 4.00 0.00 0.00 0.00 0.00 20.00 229.50 382.50 1727.05
1974 416.50 306.50 107.50 25.50 2.00 0.00 0.00 0.00 0.00 32.00 195.00 518.50 1603.50
1975 453.00 319.50 248.50 144.50 17.50 0.00 0.00 0.00 0.00 34.00 204.50 334.50 1756.00
1976 348.00 158.00 158.00 51.00 0.00 0.00 0.00 0.00 0.00 30.00 144.00 377.00 1266.00
1977 367.50 169.00 200.50 34.00 5.50 0.00 0.00 0.00 0.00 0.00 96.00 270.00 1142.50
1978 350.50 245.50 100.00 47.50 4.00 0.00 0.00 0.00 0.00 3.00 181.00 452.00 1383.50
1979 521.00 308.00 204.50 45.50 5.50 0.00 0.00 0.00 0.00 20.00 231.50 310.00 1646.00
1980 291.00 166.50 189.00 67.50 8.00 0.00 0.00 0.00 0.00 39.00 190.50 226.00 1177.50
1981 295.50 231.00 156.50 17.50 0.00 0.00 0.00 0.00 0.00 29.50 113.50 322.50 1166.00
1982 423.50 217.50 177.00 38.50 2.50 0.00 0.00 0.00 0.00 23.00 183.00 409.50 1474.50
1983 329.50 258.00 169.00 95.50 6.00 0.00 0.00 0.00 0.00 0.00 197.50 325.00 1380.50
1984 357.00 251.50 86.00 57.50 0.00 0.00 0.00 0.00 0.00 39.00 200.50 425.00 1416.50
1985 434.50 298.00 165.50 14.50 0.00 0.00 0.00 0.00 0.00 2.50 261.00 418.50 1594.50
1986 230.00 248.00 91.50 18.00 5.00 0.00 0.00 0.00 3.50 24.50 157.50 413.50 1191.50
1987 443.00 261.50 191.00 11.50 0.00 0.00 0.00 0.00 0.00 0.00 217.50 514.00 1638.50
1988 428.00 202.50 157.50 46.00 20.00 0.00 0.00 0.00 0.00 0.00 212.00 427.50 1493.50
1989 434.50 218.00 66.50 5.50 0.00 0.00 0.00 0.00 0.00 31.00 123.50 370.00 1249.00
1990 400.00 302.00 101.00 4.00 0.00 0.00 0.00 0.00 0.00 2.00 140.00 482.50 1431.50
1991 402.00 100.50 248.00 26.50 4.50 0.00 0.00 0.00 0.00 53.50 211.00 336.00 1382.00
1992 374.00 190.50 119.00 13.50 0.00 0.00 0.00 0.00 0.00 1.50 293.50 468.00 1460.00
1993 299.50 253.50 109.50 12.00 0.00 0.00 0.00 0.00 0.00 8.00 225.00 365.00 1272.50
1994 367.50 278.00 76.50 33.00 0.00 0.00 0.00 0.00 0.00 22.00 279.00 328.50 1384.50
1995 372.00 101.00 109.50 58.50 13.50 0.00 0.00 0.00 0.00 5.50 43.00 333.00 1036.00
1996 338.00 143.50 85.00 3.50 0.00 0.00 0.00 0.00 0.00 79.00 109.00 355.00 1113.00
1997 329.00 248.00 54.00 53.00 0.00 0.00 0.00 0.00 0.00 36.00 151.50 442.50 1314.00
1998 348.00 341.50 166.50 124.00 2.00 0.00 z 0.00 0.00 0.00 15.50 167.50 386.00 1551.00
1999 318.00 189.00 98.00 124.50 8.50 0.00 0.00 a 0.00 0.00 0.00 106.00 403.00 1247.00
2000 310.00 194.50 137.50 15.00 0.00 0.00 0.00 0.00 0.00 40.00 372.00 353.50 1422.50
2001 394.00 316.50 136.00 75.00 0.00 0.00 0.00 0.00 0.00 0.00 133.00 472.00 1526.50
2002 404.00 222.50 154.50 4.00 0.00 0.00 0.00 0.00 0.00 13.50 98.00 407.50 1304.00
2003 201.50 246.00 139.50 51.00 2.00 0.00 0.00 0.00 0.00 1.00 206.00 358.00 1205.00
2004 310.00 323.50 59.50 17.50 0.00 0.00 0.00 0.00 0.00 39.00 227.00 375.00 1351.50
2005 299.50 236.00 156.50 11.00 0.00 0.00 0.00 0.00 0.00 1.50 118.00 349.50 1172.00
2006 316.00 182.00 173.00 18.00 0.00 0.00 0.00 0.00 0.00 6.50 110.00 429.50 1235.00
2007 422.00 202.00 84.00 20.50 0.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 728.50
Period of Record Statistics
MEAN 387.86 247.70 160.01 48.46 5.31 0.00 0.00 0.00 0.08 21.72 184.34 397.92 1419.07
S.D. 81.81 75.62 72.10 40.58 9.25 0.00 0.00 0.00 0.53 21.02 67.43 67.99 202.38
SKEW 0.35 0.68 0.71 0.98 2.58 0.00 0.00 0.00 6.40 0.97 0.60 0.06 0.16
MAX 603.43 500.00 339.00 144.50 45.00 0.00 0.00 0.00 3.50 79.50 372.00 564.50 1808.97
MIN 201.50 100.50 41.50 3.50 0.00 0.00 0.00 0.00 0.00 0.00 43.00 226.00 1036.00
NO YRS 46 47 47 47 47 45 46 45 44 45 45 46 41