KOFA MINE, ARIZONA

Monthly Total Heating Degree Days

(024702)

Base Temperature = 65 F

File last updated on Apr 3, 2013
*** Note *** Provisional Data *** After Year/Month 201301
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
1952 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 0.00 0.00 0.00 0.00 219.50 353.00 572.50
1953 159.00 221.50 106.50 48.50 11.00 0.00 0.00 0.00 0.00 11.50 98.00 304.00 960.00
1954 300.00 58.50 170.00 0.00 4.00 0.00 0.00 0.00 0.00 3.50 17.50 208.50 762.00
1955 462.50 304.50 85.00 27.50 14.00 0.00 0.00 0.00 0.00 b 0.00 98.50 159.50 1151.50
1956 155.00 331.50 64.50 59.50 0.00 0.00 0.00 0.00 0.00 16.50 87.00 181.00 895.00
1957 343.00 101.00 84.00 44.50 6.00 0.00 0.00 0.00 0.00 7.50 183.00 152.00 921.00
1958 209.50 118.50 231.50 68.00 0.00 0.00 0.00 0.00 0.00 1.00 97.00 68.00 793.50
1959 164.00 237.50 17.50 0.00 1.50 0.00 0.00 0.00 0.00 21.50 32.50 243.00 717.50
1960 408.00 286.50 37.50 31.00 1.00 0.00 0.00 0.00 0.00 9.50 69.00 259.50 1102.00
1961 144.00 106.50 107.50 12.00 1.50 0.00 0.00 0.00 0.00 37.00 164.50 309.50 882.50
1962 307.50 236.00 250.50 0.00 22.00 0.00 0.00 0.00 0.00 0.50 55.00 202.00 1073.50
1963 384.50 68.50 122.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 575.50
1964 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 0.00 227.00 275.50 502.50
1965 256.50 202.50 219.00 146.50 14.00 0.00 0.00 0.00 5.00 15.00 149.50 451.00 1459.00
1966 531.00 322.00 115.00 10.00 0.00 0.00 0.00 0.00 0.00 2.00 59.00 h 0.00 z 980.00
1967 271.00 118.00 60.00 m 59.50 h 3.00 0.00 0.00 0.00 0.00 0.00 a 67.76 a 386.00 f 459.76
1968 88.50 s 85.00 k 72.00 h 0.00 z 0.00 z 0.00 z 0.00 z 0.00 n 0.00 i 0.00 z 98.00 h 267.00 l 0.00
1969 9.50 z 132.00 r 0.00 z 6.00 g 20.67 a 0.00 0.00 z 0.00 d 0.00 b 7.00 84.00 234.50 346.17
1970 297.60 a 104.50 162.00 73.50 0.00 0.00 z 0.00 0.00 c 0.00 z 13.95 a 75.56 c 330.50 1057.61
1971 322.00 198.00 94.50 0.00 z 21.70 a 0.00 0.00 0.00 0.00 98.50 144.50 425.00 1304.20
1972 276.50 102.00 29.00 22.50 2.50 0.00 0.00 0.00 0.00 53.50 183.50 303.50 973.00
1973 0.00 z 0.00 z 303.69 d 52.50 0.00 z 0.00 0.00 0.00 0.00 a 1.00 162.00 206.50 725.69
1974 368.00 191.50 104.50 12.00 0.00 0.00 0.00 0.00 0.00 21.18 a 68.00 372.50 1137.68
1975 305.00 229.00 200.00 150.00 13.50 0.00 0.00 0.00 d 0.00 b 6.00 105.00 243.50 1252.00
1976 217.50 174.00 153.50 86.00 0.00 h 0.00 z 0.00 0.00 0.00 a 36.17 a 95.50 213.68 c 976.35
1977 322.50 94.50 0.00 z 36.50 18.00 0.00 0.00 b 0.00 a 0.00 0.00 z 0.00 z 0.00 z 471.50
1978 335.83 a 226.50 111.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 673.83
1979 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 0.00 0.00 11.00 147.50 247.50 406.00
1980 316.50 164.00 212.50 66.50 8.78 a 0.00 0.00 0.00 a 0.00 18.00 98.00 123.00 1007.28
1981 185.00 144.50 132.00 20.50 1.55 a 0.00 0.00 0.00 0.00 17.50 68.79 a 235.50 805.34
1982 359.50 176.00 171.50 38.50 5.50 0.00 0.00 0.00 0.00 0.00 151.50 374.50 1277.00
1983 249.50 219.00 175.50 93.50 5.00 0.00 0.00 0.00 0.00 0.00 156.00 269.50 1168.00
1984 211.50 137.50 34.00 65.50 0.00 0.00 0.00 0.00 0.00 12.00 135.50 375.00 971.00
1985 369.00 270.00 149.00 12.50 0.50 0.00 0.00 0.00 0.00 4.50 208.45 a 237.00 1250.95
1986 84.50 176.50 79.50 6.00 5.00 0.00 0.00 0.00 4.50 0.00 47.00 275.00 678.00
1987 329.00 206.00 132.00 12.50 3.00 0.00 0.00 0.00 0.00 1.00 117.00 417.00 1217.50
1988 320.50 116.50 92.50 56.00 21.00 0.00 z 0.00 0.00 0.00 0.00 122.50 299.00 1028.00
1989 334.50 200.00 45.00 8.50 3.00 0.00 0.00 0.00 0.00 10.00 50.00 193.50 844.50
1990 314.00 275.50 109.50 8.50 2.00 0.00 0.00 0.00 0.00 0.00 78.00 358.00 1145.50
1991 284.50 28.00 248.00 14.50 6.00 0.00 0.00 0.00 0.00 41.00 98.00 268.50 988.50
1992 253.50 137.00 140.00 14.00 0.00 0.00 0.00 0.00 0.00 0.00 136.50 414.50 1095.50
1993 323.50 267.00 68.50 2.50 0.00 0.50 0.00 0.00 0.00 0.50 130.00 246.00 1038.50
1994 175.50 235.00 60.00 41.00 1.00 0.00 0.00 0.00 0.00 9.00 229.00 286.50 1037.00
1995 327.50 64.50 100.50 67.50 18.50 0.00 0.00 0.00 0.00 0.00 7.00 176.00 761.50
1996 192.00 125.00 71.00 0.00 1.00 0.00 0.00 0.00 0.00 66.00 56.00 218.00 729.00
1997 250.50 183.00 34.00 56.50 0.00 0.00 0.00 0.00 0.00 10.00 74.00 371.50 979.50
1998 266.00 335.50 172.50 119.50 8.00 0.00 z 0.00 0.00 0.00 1.50 61.00 292.50 1256.50
1999 154.00 122.00 90.00 160.00 7.00 4.00 0.00 0.00 0.00 0.00 36.00 201.50 774.50
2000 160.00 135.00 113.50 1.50 0.00 0.00 0.00 0.00 0.00 28.50 203.00 156.50 798.00
2001 356.00 259.00 114.50 87.50 0.00 0.00 0.00 0.00 0.00 0.00 79.50 327.50 1224.00
2002 268.50 96.50 106.00 6.50 1.00 0.00 0.00 0.00 0.00 5.00 16.50 290.50 790.50
2003 46.00 193.50 106.50 56.00 6.00 0.00 0.00 0.00 0.00 0.00 116.50 254.50 779.00
2004 244.50 265.50 48.00 23.50 0.00 0.00 0.00 0.00 0.00 46.50 206.50 299.00 1133.50
2005 274.50 244.50 134.00 14.50 0.00 0.00 0.00 0.00 0.00 z 2.50 40.00 184.50 894.50
2006 199.00 90.50 189.50 17.88 d 0.00 0.00 0.00 0.00 0.00 0.00 59.00 255.00 810.88
2007 337.50 145.50 62.50 21.00 0.00 0.00 0.00 0.00 0.00 2.50 37.00 372.00 978.00
2008 341.00 246.00 60.50 5.50 18.00 0.00 0.00 0.00 0.00 5.50 30.00 305.50 1012.00
2009 180.46 c 196.52 a 67.50 34.00 0.00 0.00 0.00 0.00 0.00 19.00 40.50 315.50 853.48
2010 217.00 193.50 131.00 63.00 3.50 0.00 0.00 0.00 0.00 6.00 153.50 167.00 934.50
2011 226.50 272.00 66.00 34.00 3.00 0.00 0.00 0.00 0.00 1.00 104.50 359.50 1066.50
2012 157.00 157.50 81.00 23.50 0.50 0.00 0.00 0.00 0.00 1.00 31.00 278.50 730.00
2013 326.00 236.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 562.00
Period of Record Statistics
MEAN 270.98 184.77 117.92 41.02 5.34 0.09 0.00 0.00 0.17 11.97 103.73 271.66 976.36
S.D. 90.68 74.79 62.90 39.71 6.88 0.56 0.00 0.00 0.89 18.77 59.20 82.06 184.11
SKEW 0.05 0.06 0.80 1.35 1.29 6.85 0.00 0.00 5.03 2.55 0.47 0.04 0.37
MAX 531.00 335.50 303.69 160.00 22.00 4.00 0.00 0.00 5.00 98.50 229.00 451.00 1459.00
MIN 46.00 28.00 17.50 0.00 0.00 0.00 0.00 0.00 0.00 0.00 7.00 68.00 678.00
NO YRS 56 56 54 52 53 52 56 57 56 57 56 55 44