BLACK RIVER PUMPS, ARIZONA

Monthly Total Heating Degree Days

(020808)

Base Temperature = 65 F

File last updated on Apr 3, 2013
*** Note *** Provisional Data *** After Year/Month 201302
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
1948 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 0.00 z 0.00 z 0.00
1949 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 0.00 z 0.00 z 0.00
1950 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 0.00 z 0.00 z 0.00
1951 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 66.21 a 0.00 a 7.50 21.00 285.50 692.00 944.50 2016.71
1952 863.50 878.50 952.50 446.50 169.00 27.50 0.00 0.50 37.00 186.00 763.00 984.00 5308.00
1953 833.50 867.50 684.00 464.00 385.50 34.00 0.00 1.50 6.50 300.00 580.50 1062.50 5219.50
1954 906.00 626.00 737.50 281.50 170.50 44.50 0.00 g 10.50 31.00 222.50 554.50 876.00 4460.50
1955 1073.50 919.50 717.50 500.50 237.00 58.50 3.00 0.00 h 40.50 237.50 664.00 797.00 5248.50
1956 811.50 999.50 654.00 486.00 145.50 2.00 1.00 17.00 5.50 282.50 770.50 953.00 5128.00
1957 868.00 540.81 a 696.00 505.00 391.12 a 35.00 3.00 1.50 57.50 385.50 790.50 824.50 5098.43
1958 967.50 690.00 840.50 494.50 119.00 0.50 0.00 0.00 59.00 299.00 705.00 755.00 4930.00
1959 867.00 827.50 698.50 334.50 222.50 7.00 0.00 2.50 97.00 312.50 694.50 876.00 4939.50
1960 1146.00 946.00 574.50 384.00 218.50 4.00 0.00 0.00 18.00 366.50 607.50 1017.00 5282.00
1961 897.00 746.50 694.00 432.00 185.00 24.50 0.00 7.00 99.50 353.40 a 764.50 1008.50 5211.90
1962 1054.50 743.50 863.50 318.50 243.50 52.50 3.00 0.00 65.00 301.50 549.50 836.50 5031.50
1963 1109.50 677.50 724.50 490.00 126.50 76.50 0.00 0.50 8.00 214.50 632.50 911.50 4971.50
1964 1086.50 970.00 857.00 538.50 225.00 28.00 0.00 4.00 107.50 241.50 740.00 949.00 5747.00
1965 883.00 870.50 793.50 497.50 306.00 97.00 0.00 1.00 99.00 276.50 549.50 946.50 5320.00
1966 1086.00 995.50 679.50 407.50 128.50 31.50 0.00 2.00 60.50 373.50 558.50 923.50 5246.50
1967 980.00 738.50 593.00 533.00 286.50 86.50 0.00 0.50 66.50 305.00 570.00 1050.00 5209.50
1968 978.00 668.50 695.50 0.00 z 257.00 52.00 4.00 30.00 101.00 310.50 701.50 1024.50 4822.50
1969 859.00 786.50 837.00 429.00 216.50 37.50 0.00 0.00 43.00 460.50 686.50 807.50 5163.00
1970 987.50 700.00 821.00 633.50 239.00 42.00 0.50 1.50 128.50 521.00 648.50 869.00 5592.00
1971 972.00 797.00 710.50 521.50 343.50 73.50 3.50 4.00 102.00 502.00 687.00 995.50 5712.00
1972 904.00 740.00 507.50 473.00 230.50 41.50 0.00 14.50 80.00 329.50 814.50 935.00 5070.00
1973 1018.50 791.00 860.50 605.00 230.00 87.00 5.50 2.00 66.50 282.50 648.50 888.00 5485.00
1974 876.00 821.50 620.00 486.50 197.00 21.50 0.00 2.50 108.50 317.00 663.50 974.50 5088.50
1975 938.00 825.50 766.00 664.00 343.00 33.00 1.00 1.50 88.00 324.50 684.50 869.50 5538.50
1976 944.50 668.50 739.50 501.00 230.50 27.00 0.00 0.00 86.00 439.00 671.00 895.00 5202.00
1977 929.50 700.50 829.00 448.50 0.00 z 6.00 0.00 0.00 57.50 256.00 603.00 765.00 4595.00
1978 865.50 752.00 582.00 460.50 261.50 21.50 0.00 1.50 73.50 241.00 631.50 974.50 4865.00
1979 1041.00 796.00 729.50 462.00 270.50 60.50 6.50 35.00 38.50 235.50 793.00 830.50 5298.50
1980 853.50 719.50 784.00 479.00 338.00 37.00 0.00 13.50 47.00 404.00 695.00 762.00 5132.50
1981 818.50 729.50 786.00 399.00 250.50 18.00 0.00 2.00 30.50 394.00 621.50 808.07 a 4857.57
1982 990.50 737.00 745.50 498.00 275.50 49.00 1.50 1.50 83.00 397.00 712.00 968.50 5459.00
1983 906.50 751.50 753.00 632.50 307.00 37.00 0.00 0.00 30.00 324.00 691.00 874.50 5307.00
1984 891.00 823.50 711.50 550.00 132.00 21.50 0.00 0.00 66.00 494.00 700.50 896.50 5286.50
1985 957.50 868.50 714.00 401.50 174.50 37.50 0.52 a 1.00 136.50 360.00 705.00 901.50 5258.02
1986 781.50 734.00 592.00 425.50 209.50 30.50 9.50 3.00 135.50 422.50 667.50 896.00 4907.00
1987 1002.00 780.50 807.50 390.50 241.00 7.50 4.00 5.00 73.50 196.50 726.00 1009.00 5243.00
1988 972.50 696.00 693.50 497.50 223.00 22.00 0.00 1.00 164.00 317.00 716.50 968.50 5271.50
1989 995.50 721.00 625.50 332.00 223.00 43.50 2.00 3.50 63.50 399.50 699.00 1011.50 5119.50
1990 1034.00 865.50 667.00 411.50 263.00 17.00 1.50 12.50 45.50 354.00 639.00 1047.28 a 5357.78
1991 939.50 670.00 858.00 524.00 264.00 73.50 0.00 1.50 78.50 273.00 722.50 921.50 5326.00
1992 1090.50 739.00 672.00 363.00 197.00 58.50 3.00 25.50 33.50 270.00 824.50 945.00 5221.50
1993 843.20 a 751.50 639.00 429.00 146.50 48.50 0.00 2.50 59.00 461.00 745.00 925.50 5050.70
1994 885.00 795.50 635.50 423.00 221.00 0.00 0.00 0.00 22.50 372.50 733.50 832.00 4920.50
1995 917.50 605.00 638.50 520.00 333.50 45.50 3.00 0.00 42.50 262.00 506.00 852.00 4725.50
1996 862.50 640.00 683.55 a 432.00 109.50 1.00 0.00 0.00 118.00 368.00 642.00 921.50 4778.05
1997 1017.00 760.00 620.00 a 541.00 117.00 27.50 0.00 0.00 12.50 419.00 639.50 1025.07 a 5178.57
1998 893.00 846.74 a 0.00 z 589.00 260.50 84.00 0.00 0.00 10.50 344.00 626.00 896.00 4549.74
1999 888.50 713.00 594.50 522.00 201.50 0.00 z 0.00 4.00 36.50 21.70 a 451.07 b 913.00 4345.77
2000 798.50 661.82 a 686.00 366.21 a 109.53 a 2.50 0.00 8.04 d 27.78 c 369.00 820.00 768.00 4617.38
2001 928.50 735.00 b 620.00 442.00 159.50 22.24 a 0.00 0.00 a 6.00 245.00 605.00 1002.85 a 4766.09
2002 883.00 773.50 739.00 303.00 218.50 5.50 0.00 5.00 62.50 388.50 611.50 928.50 4918.50
2003 660.50 735.50 732.00 524.50 211.00 24.00 0.00 2.00 35.00 163.00 656.50 880.50 4624.50
2004 855.00 899.52 a 512.00 475.50 191.50 21.50 3.00 17.00 108.50 389.50 717.50 873.00 5063.52
2005 844.50 706.50 706.00 490.50 229.00 0.00 z 0.00 2.00 k 4.00 w 207.00 k 0.00 z 802.50 3779.00
2006 837.50 675.00 753.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 910.50 3176.50
2007 1009.00 755.00 625.50 0.00 z 185.50 0.00 z 0.00 z 0.00 z 55.50 320.00 464.00 975.00 4389.50
2008 961.50 791.00 0.00 z 476.38 a 316.50 31.50 1.00 3.00 55.50 312.00 579.50 838.00 4365.88
2009 0.00 z 707.50 603.50 496.00 132.00 68.50 0.00 5.00 0.00 z 413.00 0.00 z 0.00 z 2425.50
2010 893.00 815.50 796.46 e 476.50 313.00 0.00 z 0.00 1.50 24.00 e 280.00 721.00 754.50 5075.46
2011 991.48 a 850.50 605.02 a 401.90 a 318.50 10.18 b 1.50 0.00 z 50.69 a 0.00 z 702.00 1035.73 c 4967.50
2012 834.42 a 814.59 a 724.00 397.24 a 204.94 d 0.00 z 3.62 a 6.50 0.00 z 378.50 0.00 z 0.00 z 3363.81
2013 1032.50 1018.00 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 2050.50
Period of Record Statistics
MEAN 931.40 773.72 708.16 465.65 228.06 36.14 1.10 4.79 61.48 326.69 668.27 911.46 5149.96
S.D. 92.47 97.76 92.67 79.83 69.34 24.92 1.93 7.47 37.13 89.42 82.52 81.85 256.69
SKEW 0.05 0.49 0.19 0.05 0.28 0.56 2.18 2.42 0.56 -0.40 -0.43 -0.15 0.06
MAX 1146.00 1018.00 952.50 664.00 391.12 97.00 9.50 35.00 164.00 521.00 824.50 1062.50 5747.00
MIN 660.50 540.81 507.50 281.50 109.50 0.00 0.00 0.00 5.50 21.70 451.07 754.50 4617.38
NO YRS 61 62 59 58 59 56 59 57 58 59 58 60 47