MARICOPA 4 N, ARIZONA

Monthly Total Heating Degree Days

(025270)

Base Temperature = 65 F

File last updated on Apr 3, 2013
*** Note *** Provisional Data *** After Year/Month 201303
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
1960 0.00 z 30.00 z 93.50 21.00 0.00 d 0.00 0.00 0.00 0.00 30.50 230.00 511.50 886.50
1961 421.50 288.00 194.50 32.07 a 16.50 0.00 0.00 0.00 0.00 75.00 335.50 496.50 1859.57
1962 541.00 322.00 323.43 a 6.00 0.00 0.00 0.00 0.00 a 0.00 2.50 125.50 378.50 1698.93
1963 559.50 186.00 193.50 72.50 0.00 0.00 0.00 0.00 0.00 1.50 188.00 493.50 1694.50
1964 622.67 b 523.00 348.00 81.00 36.00 0.00 0.00 a 0.00 0.00 3.00 345.00 469.00 2427.67
1965 406.50 353.50 287.00 116.00 15.50 0.00 0.00 0.00 3.50 12.00 160.50 431.00 1785.50
1966 575.00 431.00 165.50 17.00 0.00 b 0.00 0.00 0.00 0.00 16.50 184.50 491.00 1880.50
1967 540.00 307.00 116.50 97.50 10.50 0.00 0.00 0.00 0.00 14.00 140.50 580.50 1806.50
1968 482.50 211.00 219.50 75.00 0.00 0.00 a 0.00 a 0.00 a 0.00 10.33 a 244.50 591.00 1833.83
1969 348.50 370.00 278.00 19.44 c 16.00 0.00 0.00 0.00 0.00 57.50 218.00 439.50 1746.94
1970 558.50 270.50 257.00 168.50 7.50 0.00 0.00 0.00 0.00 51.00 205.00 482.00 2000.00
1971 505.00 305.67 d 164.00 50.00 0.00 c 0.00 0.00 0.00 0.00 122.00 277.50 569.00 1993.17
1972 540.00 242.00 37.00 11.00 0.00 0.00 0.00 0.00 0.00 69.00 347.00 533.00 1779.00
1973 548.00 326.00 368.12 c 85.00 4.50 0.00 0.00 0.00 0.00 33.00 274.00 483.50 2122.12
1974 490.50 397.00 136.50 19.50 4.00 0.00 0.00 0.00 0.00 31.50 253.50 585.00 1917.50
1975 522.00 385.50 246.00 160.50 20.50 0.00 0.00 0.00 0.00 46.50 271.00 450.00 2102.00
1976 471.00 243.00 245.50 83.00 0.50 0.00 0.00 0.00 0.00 47.50 213.50 474.50 1778.50
1977 460.50 289.50 288.50 47.50 16.50 0.00 0.00 0.00 0.00 4.00 178.00 344.50 1629.00
1978 420.00 299.50 119.00 55.50 4.50 0.00 0.00 0.00 0.00 9.50 223.50 533.50 1665.00
1979 551.50 362.00 260.00 64.50 10.50 0.00 0.00 0.00 0.00 21.50 323.50 414.50 2008.00
1980 369.00 223.50 218.00 75.00 4.50 0.00 0.00 0.00 0.00 56.00 221.50 305.00 1472.50
1981 324.50 260.50 185.50 19.00 0.00 0.00 0.00 0.00 0.00 43.50 173.50 399.00 1405.50
1982 471.50 257.50 229.50 39.50 4.00 0.00 0.00 0.00 0.00 31.50 235.00 481.00 1749.50
1983 447.50 315.50 203.50 137.00 1.50 0.00 0.00 0.00 0.00 0.00 234.50 401.00 1740.50
1984 441.50 359.50 135.00 74.00 0.00 0.00 0.00 0.00 0.00 52.00 250.00 470.00 1782.00
1985 472.50 360.50 193.00 17.50 0.00 0.00 0.00 0.00 0.00 4.50 243.50 461.50 1753.00
1986 313.00 255.00 104.50 17.00 4.50 0.00 0.00 0.00 1.50 21.50 193.50 437.50 1348.00
1987 491.50 290.50 199.50 14.00 0.00 0.00 0.00 0.00 0.00 0.00 233.00 540.50 1769.00
1988 471.00 246.00 173.50 48.00 10.50 0.00 0.00 0.00 0.00 0.00 233.50 462.50 1645.00
1989 471.50 239.50 69.00 3.50 0.00 0.00 0.00 0.00 0.00 35.50 177.50 480.50 1477.00
1990 463.00 364.00 145.50 8.00 1.00 0.00 0.00 0.00 0.00 3.50 195.50 548.50 1729.00
1991 476.00 204.00 336.00 55.00 6.50 0.00 0.00 0.00 0.00 56.00 235.00 373.00 1741.50
1992 430.50 228.00 163.50 16.00 0.00 0.00 0.00 0.00 0.00 0.50 315.00 481.50 1635.00
1993 313.00 297.00 141.00 19.00 0.00 0.00 0.00 0.00 0.00 11.50 258.50 466.50 1506.50
1994 471.00 326.50 91.00 26.00 1.00 0.00 0.00 0.00 0.00 25.50 281.50 389.00 1611.50
1995 416.00 161.00 122.00 70.50 6.00 0.00 0.00 0.00 0.00 12.00 67.00 386.00 1240.50
1996 414.00 160.00 114.50 2.50 0.00 0.00 0.00 0.00 0.00 93.00 147.50 401.00 1332.50
1997 376.00 283.50 70.50 55.00 0.00 0.00 0.00 0.00 0.00 41.00 193.50 487.50 1507.00
1998 384.50 354.50 185.00 124.50 1.50 0.00 z 0.00 0.00 0.00 16.50 207.00 440.00 1713.50
1999 376.00 213.00 96.50 119.00 6.50 0.00 0.00 0.00 0.00 0.00 117.50 461.00 1389.50
2000 339.50 205.50 124.00 14.50 0.00 0.00 0.00 0.00 0.00 42.00 392.50 441.00 1559.00
2001 454.50 338.00 151.00 57.00 2.00 0.00 0.00 0.00 0.00 0.00 125.50 527.00 1655.00
2002 453.50 278.00 193.50 5.50 0.00 0.00 0.00 0.00 0.00 21.00 146.00 464.50 1562.00
2003 259.50 265.50 151.00 46.50 0.50 0.00 0.00 0.00 0.00 0.00 233.50 421.50 1378.00
2004 363.00 370.00 66.50 18.00 0.00 0.00 0.00 0.00 0.00 45.50 241.50 426.00 1530.50
2005 343.00 237.50 171.50 17.00 0.00 0.00 0.00 0.00 0.00 2.50 155.50 435.50 1362.50
2006 417.50 253.50 199.00 15.50 0.00 0.00 0.00 0.00 0.00 7.50 132.50 495.00 1520.50
2007 506.50 250.50 106.50 25.00 0.00 0.00 0.00 0.00 0.00 0.50 84.50 0.00 z 973.50
2008 446.50 329.50 141.00 8.50 8.00 0.00 0.00 0.00 0.00 16.00 118.00 406.50 1474.00
2009 332.00 244.50 86.50 36.50 0.00 0.00 0.00 0.00 0.00 44.00 139.50 494.00 1377.00
2010 365.00 261.00 183.50 39.50 3.50 0.00 0.00 0.00 0.00 5.00 274.00 318.00 1449.50
2011 450.50 390.00 87.83 a 27.50 0.00 0.00 0.00 a 0.00 0.00 11.37 a 195.50 511.00 1673.70
2012 359.50 286.00 155.50 17.00 0.00 b 0.00 0.00 0.00 0.00 2.00 102.50 404.50 1327.00
2013 507.00 351.00 67.68 a 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 17.50 z 925.68
Period of Record Statistics
MEAN 444.44 293.81 174.12 48.12 4.24 0.00 0.00 0.00 0.09 25.65 213.08 460.93 1668.64
S.D. 79.01 70.60 77.56 41.30 6.95 0.00 0.00 0.00 0.52 26.62 70.48 64.19 238.90
SKEW -0.11 0.55 0.60 1.19 2.42 0.00 0.00 0.00 5.85 1.35 0.23 -0.14 0.62
MAX 622.67 523.00 368.12 168.50 36.00 0.00 0.00 0.00 3.50 122.00 392.50 591.00 2427.67
MIN 259.50 160.00 37.00 2.50 0.00 0.00 0.00 0.00 0.00 0.00 67.00 305.00 1240.50
NO YRS 53 53 54 53 53 52 53 53 53 53 53 52 50