YUMA PROVING GROUND, ARIZONA

Monthly Total Heating Degree Days

(029654)

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
1958 0.00 z 0.00 z 0.00 z 40.50 0.00 0.00 0.00 0.00 0.00 0.00 116.50 187.50 344.50
1959 240.00 232.00 21.00 0.00 1.00 0.00 0.00 0.00 0.00 18.00 56.50 293.50 862.00
1960 437.00 253.50 30.50 11.00 0.00 0.00 0.00 0.00 0.00 0.00 107.00 352.00 1191.00
1961 224.50 112.50 65.50 2.50 0.00 0.00 0.00 0.00 0.00 28.00 165.50 339.50 938.00
1962 297.50 186.00 191.00 0.00 2.00 0.00 0.00 0.00 0.00 0.00 59.00 224.00 959.50
1963 430.50 48.00 105.50 41.00 0.00 0.00 0.00 0.00 0.00 0.00 91.00 310.00 1026.00
1964 0.00 z 301.00 169.50 35.00 16.00 0.00 0.00 0.00 0.00 0.00 207.00 294.50 1023.00
1965 270.50 187.00 126.50 64.50 0.00 0.00 0.00 0.00 0.00 1.00 73.00 333.00 1055.50
1966 413.00 282.00 71.50 4.00 0.00 0.00 0.00 0.00 0.00 0.00 77.50 295.50 1143.50
1967 352.50 141.00 68.50 75.00 2.50 0.00 0.00 0.00 0.00 0.00 33.50 398.50 1071.50
1968 304.50 67.50 48.50 13.50 0.00 0.00 0.00 0.00 0.00 0.00 72.00 440.50 946.50
1969 197.50 234.50 152.50 1.50 9.00 0.00 0.00 0.00 0.00 2.50 61.50 280.00 939.00
1970 330.00 106.50 109.50 53.50 0.00 e 0.00 0.00 0.00 0.00 7.00 74.50 335.00 1016.00
1971 349.00 177.00 91.00 34.50 2.50 0.00 0.00 0.00 0.00 68.50 148.50 415.50 1286.50
1972 401.50 141.50 13.00 13.00 0.00 0.00 0.00 0.00 0.00 21.00 176.00 387.00 1153.00
1973 397.00 180.50 183.50 19.00 0.00 0.00 0.00 0.00 0.00 0.00 155.00 267.50 1202.50
1974 323.50 199.50 75.50 1.50 2.00 0.00 0.00 0.00 0.00 13.00 79.00 402.00 1096.00
1975 338.00 224.00 140.50 93.00 2.00 0.00 0.00 0.00 0.00 11.50 114.50 297.50 1221.00
1976 275.00 122.00 103.50 52.50 0.50 0.00 0.00 0.00 0.00 3.50 94.00 327.50 978.50
1977 317.00 125.50 166.50 32.50 0.50 0.00 0.00 0.00 0.00 0.00 42.50 155.50 840.00
1978 278.00 120.00 32.50 10.50 0.00 0.00 0.00 0.00 0.00 0.00 146.50 0.00 z 587.50
1979 432.00 203.50 100.00 3.00 0.00 0.00 0.00 z 0.00 0.00 z 0.00 z 135.00 217.50 1091.00
1980 187.00 75.50 65.00 29.48 a 3.50 0.00 0.00 0.00 0.00 9.50 97.00 141.50 608.48
1981 154.48 a 117.50 69.00 9.50 0.00 0.00 0.00 0.00 0.00 7.50 63.00 195.82 a 616.80
1982 326.00 138.00 133.00 16.00 0.50 0.00 0.00 0.00 0.00 0.00 121.50 330.50 1065.50
1983 226.50 165.00 76.50 50.00 0.00 0.00 0.00 0.00 0.00 0.00 114.50 216.50 849.00
1984 198.50 160.00 25.50 32.00 0.00 0.00 0.00 0.00 0.00 4.50 126.50 333.50 880.50
1985 320.50 230.50 94.50 0.00 0.00 0.00 0.00 0.00 0.00 0.00 187.00 295.50 1128.00
1986 146.00 138.00 39.50 1.00 0.00 0.00 0.00 0.00 0.00 0.00 52.00 293.50 670.00
1987 332.50 156.00 91.50 5.00 0.00 0.00 0.00 0.00 0.00 0.00 98.50 391.00 1074.50
1988 325.50 105.00 61.50 16.00 6.00 0.00 0.00 0.00 0.00 0.00 127.50 294.00 935.50
1989 341.00 182.00 27.00 1.00 0.00 0.00 0.00 0.00 0.00 5.50 39.50 265.50 861.50
1990 313.50 250.00 68.50 1.50 0.00 0.00 0.00 0.00 0.00 0.00 70.50 412.00 1116.00
1991 273.50 31.50 146.50 5.00 0.50 0.00 0.00 0.00 0.00 28.00 100.00 261.00 846.00
1992 258.00 68.00 48.00 2.00 0.00 0.00 0.00 0.00 0.00 0.00 145.00 387.50 908.50
1993 248.50 130.50 36.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 116.00 288.50 819.50
1994 235.50 194.50 23.00 9.50 0.00 0.00 0.00 0.00 0.00 1.00 214.50 321.00 999.00
1995 253.00 29.50 35.50 26.00 4.50 0.00 0.00 0.00 0.00 0.00 5.50 197.00 551.00
1996 207.00 89.50 35.65 a 0.00 0.00 0.00 0.00 0.00 0.00 28.50 59.50 268.00 688.15
1997 203.50 160.00 31.00 30.50 0.00 0.00 0.00 0.00 0.00 2.00 67.50 358.50 853.00
1998 256.00 218.50 99.50 59.00 0.00 z 0.00 z 0.00 0.00 0.00 0.00 76.50 0.00 z 709.50
1999 230.00 130.50 64.00 96.50 2.00 0.00 0.00 0.00 0.00 0.00 52.50 249.55 a 825.05
2000 188.50 105.00 70.00 0.00 0.00 a 0.00 0.00 0.00 0.00 6.00 212.50 219.50 801.50
2001 328.00 222.00 63.00 40.00 0.00 0.00 0.00 0.00 0.00 0.00 66.00 364.00 1083.00
2002 297.00 147.50 103.00 1.00 0.00 0.00 0.00 0.00 0.00 0.00 28.00 333.00 909.50
2003 87.50 158.50 52.50 24.00 0.00 0.00 0.00 0.00 0.00 0.00 126.00 291.00 739.50
2004 250.00 220.00 34.00 9.00 0.00 0.00 0.00 0.00 0.00 22.00 154.50 301.00 990.50
2005 230.50 165.00 54.50 0.00 0.00 0.00 0.00 0.00 0.00 0.00 52.50 285.00 787.50
2006 254.50 121.50 136.00 5.00 0.00 0.00 0.00 0.00 0.00 0.00 62.00 319.50 898.50
2007 372.50 135.00 46.00 9.50 0.00 0.00 0.00 0.00 0.00 0.00 48.00 377.00 988.00
2008 0.00 z 149.50 50.00 0.00 0.50 0.00 0.00 0.00 0.00 0.00 z 0.00 z 0.00 z 200.00
2009 0.00 z 0.00 z 0.00 z 0.00 z 0.00 0.00 z 0.00 z 0.00 z 0.00 z 16.50 85.00 0.00 z 101.50
2010 245.00 153.00 83.50 33.00 1.50 0.00 0.00 0.00 0.00 0.00 144.00 224.00 884.00
2011 279.50 279.50 43.00 28.00 0.00 0.00 0.00 0.00 0.00 0.00 83.50 388.00 1101.50
2012 207.50 145.00 66.00 8.50 0.00 0.00 0.00 0.00 0.00 0.00 36.00 262.50 725.50
2013 351.00 200.00 19.00 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 570.00
Period of Record Statistics
MEAN 283.39 159.56 76.98 21.29 1.06 0.00 0.00 0.00 0.00 5.75 98.48 302.32 940.23
S.D. 77.14 62.03 45.51 24.27 2.67 0.00 0.00 0.00 0.00 11.97 49.53 69.75 170.01
SKEW 0.01 0.10 0.81 1.37 3.98 0.00 0.00 0.00 0.00 3.24 0.59 -0.20 -0.22
MAX 437.00 301.00 191.00 96.50 16.00 0.00 0.00 0.00 0.00 68.50 214.50 440.50 1286.50
MIN 87.50 29.50 13.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 5.50 141.50 551.00
NO YRS 52 54 54 54 54 53 53 54 53 53 54 51 48