SELIGMAN, ARIZONA

Monthly Total Heating Degree Days

(027716)

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
1904 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 837.50 837.50
1905 773.00 658.50 624.50 473.65 d 372.00 69.50 0.00 a 0.00 33.50 370.00 643.00 1025.50 5043.15
1906 954.50 625.00 641.50 486.00 287.00 47.50 0.00 3.00 77.00 304.00 728.00 782.00 4935.50
1907 943.50 553.50 636.50 403.50 344.00 136.50 2.50 17.00 79.50 314.00 602.50 780.00 4813.00
1908 802.00 723.00 606.50 454.00 43.50 z 15.00 i 0.00 0.00 94.00 456.50 632.50 853.50 4622.00
1909 774.50 742.50 760.00 443.50 274.00 14.50 1.50 2.00 246.50 235.50 0.00 z 0.00 z 3494.50
1910 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 16.50 0.00 z 0.00 z 0.00 z 16.50
1911 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 1.50 0.00 z 321.00 527.00 791.50 1641.00
1912 704.00 734.00 0.00 z 0.00 z 176.81 d 27.50 27.50 5.50 119.00 445.50 618.50 923.00 3781.31
1913 1056.50 819.50 777.98 e 460.00 c 246.50 63.00 15.50 a 12.50 204.00 488.00 551.00 878.00 5572.48
1914 751.50 684.25 d 517.50 300.50 i 410.00 61.50 0.00 1.00 40.00 c 265.05 a 103.50 r 388.00 q 2730.80
1915 1023.00 0.00 z 0.00 z 0.00 z 0.00 z 49.50 i 2.07 a 0.00 163.50 362.00 710.50 997.00 3258.07
1916 1064.50 618.50 558.00 427.50 313.50 44.00 0.00 53.73 a 98.50 443.62 b 636.21 a 1077.50 5335.56
1917 1242.50 894.50 957.50 698.00 0.00 z 0.00 z 0.00 y 20.50 0.00 z 397.83 a 0.00 z 0.00 z 4210.83
1918 0.00 z 786.50 647.50 462.50 330.27 e 3.60 e 4.28 b 12.00 24.50 239.50 783.00 908.50 4202.15
1919 970.00 823.00 732.50 327.00 158.50 42.00 0.00 1.00 0.00 z 537.00 0.00 z 900.50 4491.50
1920 862.50 724.50 786.88 a 566.50 307.50 49.66 a 2.50 s 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 3297.54
1921 0.00 z 0.00 z 0.00 z 491.50 306.00 37.50 0.00 0.00 69.50 168.50 556.00 682.50 2311.50
1922 934.50 0.00 z 725.50 526.00 293.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 511.00 j 792.00 3271.50
1923 814.00 858.50 761.00 496.50 196.00 141.50 0.00 0.00 131.00 392.00 627.00 907.50 5325.00
1924 957.50 660.00 549.50 h 366.00 76.50 11.50 0.00 1.00 51.00 404.00 523.00 967.00 4017.50
1925 907.50 562.00 529.50 327.50 71.00 47.50 0.00 1.00 57.00 384.00 649.00 787.50 4323.50
1926 901.00 610.50 597.50 414.50 215.00 19.50 4.00 0.50 56.00 253.00 583.50 982.50 4637.50
1927 805.00 660.50 693.50 455.50 211.50 56.50 0.00 8.00 84.00 301.50 554.00 1027.50 4857.50
1928 836.50 752.50 592.50 456.00 155.50 35.00 2.00 0.50 10.50 220.50 540.50 867.00 4469.00
1929 977.50 671.00 441.50 328.50 33.00 0.00 z 0.00 0.00 57.50 240.00 0.00 z 764.50 3513.50
1930 982.50 625.00 648.00 301.00 280.00 54.50 0.00 0.00 30.50 325.00 642.50 931.50 4820.50
1931 889.00 671.00 595.50 354.50 186.00 65.00 c 0.00 52.50 95.00 376.50 826.50 1151.50 5263.00
1932 1180.00 853.50 733.00 515.50 304.50 135.50 2.50 17.57 a 74.00 377.00 605.50 1223.00 6021.57
1933 1229.50 1100.50 713.55 c 586.00 437.00 81.50 0.00 0.00 z 0.00 z 0.00 z 248.00 q 748.00 4896.05
1934 796.00 639.00 321.50 i 133.00 o 120.42 e 90.50 0.00 a 0.00 c 91.67 c 288.00 683.50 811.00 3520.09
1935 869.50 651.50 761.50 459.00 349.50 0.00 z 1.00 l 3.32 c 0.00 z 0.00 z 582.00 f 881.00 3975.32
1936 948.50 0.00 z 0.00 z 312.50 69.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1330.00
1937 0.00 z 0.00 z 793.50 436.00 g 182.50 f 70.00 0.50 1.00 26.00 0.00 z 556.00 751.00 2198.00
1938 840.50 770.00 0.00 z 435.00 196.50 0.00 0.00 z 0.00 z 0.00 z 358.00 787.00 818.00 4205.00
1939 956.00 1003.00 654.50 364.00 227.00 64.50 3.50 0.00 d 84.00 388.00 527.50 704.00 4976.00
1940 803.00 766.00 591.58 a 419.50 154.50 23.00 0.00 2.00 53.50 278.50 684.50 777.00 4553.08
1941 855.50 617.00 667.50 547.50 195.00 50.50 4.00 4.00 92.59 a 401.50 591.50 904.50 4931.09
1942 883.50 877.00 706.50 474.00 314.50 44.00 0.00 16.50 26.50 313.50 519.00 781.50 4956.50
1943 784.50 653.50 536.50 355.00 242.50 124.00 1.00 1.50 47.50 359.00 586.00 947.00 4638.00
1944 977.50 0.00 z 795.50 514.00 300.00 99.50 23.25 a 3.00 f 33.00 q 263.50 709.14 a 806.50 4488.89
1945 888.15 a 777.50 497.00 l 640.50 202.00 0.00 z 0.00 z 0.00 h 50.50 69.00 h 601.00 931.50 4091.15
1946 871.50 717.00 558.00 a 250.00 h 169.98 a 2.00 0.00 0.50 0.00 z 0.00 z 668.00 707.00 3693.98
1947 928.00 533.50 500.50 301.00 52.00 5.50 0.00 0.00 1.00 251.00 792.50 959.00 4324.00
1948 839.00 853.00 798.00 378.50 168.00 16.50 0.00 0.00 27.50 252.00 684.50 888.50 4905.50
1949 1237.00 995.00 683.50 294.00 224.50 45.00 0.00 0.50 4.50 344.50 395.00 939.50 5163.00
1950 934.00 585.67 d 575.16 c 298.45 a 267.50 50.00 0.00 0.00 124.50 184.50 485.00 676.00 4180.78
1951 894.50 724.00 666.00 373.00 198.50 39.00 h 0.00 d 8.50 36.50 307.50 695.69 a 1034.50 4938.69
1952 723.50 k 0.00 z 327.00 r 399.00 152.00 45.50 3.00 0.00 f 13.39 b 130.00 684.00 841.50 2268.39
1953 716.00 720.50 620.00 428.00 360.50 55.50 0.00 7.00 22.00 291.50 529.50 884.50 4635.00
1954 0.00 z 528.50 747.50 277.00 100.00 60.00 0.00 1.00 23.00 170.00 436.00 851.00 3194.00
1955 1083.50 842.00 615.50 500.17 a 221.50 60.00 6.00 1.50 62.50 185.50 582.50 704.00 4864.67
1956 707.00 858.00 593.50 423.50 113.50 5.50 1.50 0.50 2.50 259.88 a 599.00 791.50 4355.88
1957 874.00 532.00 574.00 440.50 288.50 28.00 0.00 4.50 19.50 319.00 682.50 693.00 4455.50
1958 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
1959 755.50 750.00 571.50 288.50 218.50 2.00 0.00 0.00 88.00 232.00 567.00 725.50 4198.50
1960 1096.50 834.00 494.50 343.00 177.50 3.50 0.00 0.00 5.00 264.50 551.50 833.50 4603.50
1961 741.50 617.50 588.50 323.00 134.50 21.00 0.00 0.00 45.00 294.00 639.50 985.50 4390.00
1962 920.50 678.50 742.50 248.00 269.50 31.50 0.00 0.00 f 16.00 212.00 468.00 712.50 4299.00
1963 879.00 495.70 a 622.00 475.50 91.50 45.50 0.00 0.00 4.50 151.79 b 533.00 777.50 4076.00
1964 944.50 828.00 746.50 470.00 236.50 47.50 0.00 0.00 36.50 138.50 698.00 858.00 5004.00
1965 744.50 674.50 712.50 473.00 267.00 81.00 0.00 2.00 86.00 180.00 505.50 872.00 4598.00
1966 945.50 932.00 594.00 350.50 142.00 44.00 0.00 0.00 8.00 260.50 536.50 779.50 4592.50
1967 827.50 657.00 553.00 551.50 202.50 87.50 0.00 0.00 10.50 221.00 508.00 1027.17 e 4645.67
1968 1058.81 b 616.50 631.50 244.50 p 274.23 e 77.68 b 0.00 28.50 63.33 c 318.02 b 643.45 a 1043.00 4755.02
1969 768.44 e 798.00 b 547.00 j 453.33 c 208.65 e 49.04 d 0.00 0.00 e 47.07 a 424.38 b 616.11 c 804.93 b 4169.96
1970 873.17 a 636.00 722.50 651.00 252.65 a 74.50 0.00 a 1.72 d 121.00 416.84 c 589.66 a 920.50 5259.53
1971 897.00 786.50 679.93 a 529.14 a 424.00 101.50 0.00 a 0.00 e 116.67 c 475.85 a 703.89 c 1070.02 a 5784.49
1972 921.50 742.19 b 486.50 470.17 a 273.83 a 47.00 0.00 3.10 a 63.00 171.00 j 408.00 n 1017.66 b 4024.95
1973 981.15 a 732.00 834.93 a 578.57 b 202.50 55.50 0.00 2.00 87.32 b 340.43 d 672.32 b 850.95 a 5337.67
1974 999.50 790.22 a 641.04 c 501.72 a 209.00 18.00 0.50 0.00 a 0.00 z 0.00 z 0.00 z 0.00 z 3159.98
1975 0.00 z 802.00 772.93 a 665.00 263.50 g 50.17 a 9.30 a 10.13 e 38.50 328.71 b 658.45 a 813.20 c 4148.39
1976 822.53 a 667.00 718.68 a 534.23 d 188.67 b 71.50 3.50 5.00 83.04 b 395.54 d 572.00 861.00 4922.69
1977 971.50 660.50 795.00 409.00 376.98 c 13.50 0.00 a 0.00 b 62.59 a 235.71 b 519.00 710.93 a 4754.71
1978 798.00 699.00 534.00 484.00 285.50 21.00 e 9.50 8.00 73.50 198.50 607.50 954.50 4673.00
1979 1044.50 827.50 715.58 a 479.50 207.59 c 62.50 1.00 23.50 5.17 a 234.00 708.00 795.67 a 5104.51
1980 769.32 a 625.50 728.50 448.00 353.50 76.50 0.00 9.00 46.67 c 368.50 615.50 631.00 4671.98
1981 741.13 d 659.00 675.80 a 322.50 188.67 b 14.00 0.00 1.00 22.00 393.00 528.50 749.50 4295.10
1982 944.50 687.50 689.50 484.00 261.00 76.50 13.50 0.00 84.00 421.00 658.00 899.50 5219.00
1983 829.50 686.50 685.50 622.50 314.50 46.00 0.00 3.00 32.50 291.50 633.50 793.00 4938.00
1984 810.50 766.50 659.00 486.50 102.00 37.00 0.00 3.00 38.50 477.00 691.50 881.00 4952.50
1985 933.00 791.00 678.50 348.50 195.50 34.50 0.00 0.00 152.00 303.00 706.00 804.50 4946.50
1986 680.00 639.50 554.00 438.00 217.50 14.00 1.50 0.00 199.00 419.00 624.00 848.00 4634.50
1987 953.50 744.50 0.00 z 0.00 z 120.50 r 3.00 0.00 0.50 32.50 204.00 667.50 952.00 3557.50
1988 914.00 694.00 664.00 432.00 215.50 24.50 0.00 0.50 93.00 177.00 655.00 938.50 4808.00
1989 962.50 747.50 542.00 270.00 175.50 26.50 0.50 10.50 48.50 336.50 577.50 894.00 4591.50
1990 1032.50 827.00 620.00 368.50 255.00 34.50 0.00 11.50 55.50 321.50 644.00 1118.00 5288.00
1991 927.00 609.50 848.00 548.50 333.50 100.00 0.00 0.00 45.50 260.50 629.00 836.50 5138.00
1992 915.50 668.50 634.00 307.00 140.00 38.00 1.00 10.00 12.00 242.50 759.50 1009.00 4737.00
1993 813.00 704.00 560.00 371.00 148.00 53.00 0.00 1.00 64.50 306.00 695.00 858.00 4573.50
1994 819.00 762.00 524.00 386.90 a 192.00 2.00 0.00 0.00 16.00 376.00 781.50 795.00 4654.40
1995 866.00 543.50 604.00 461.00 285.00 68.00 0.00 0.00 27.50 244.50 449.00 802.00 4350.50
1996 822.00 596.00 580.50 331.50 118.00 11.00 0.00 0.00 54.50 342.50 569.50 779.50 4205.00
1997 904.50 713.50 520.50 443.50 78.00 23.50 0.00 0.00 7.00 335.50 580.50 918.00 4524.50
1998 816.00 807.00 659.50 546.00 305.00 87.00 0.00 0.00 50.00 338.50 620.50 818.50 5048.00
1999 764.67 a 629.50 569.00 534.83 a 206.50 74.48 a 0.00 1.00 19.00 239.50 481.00 814.00 4333.48
2000 767.00 633.86 a 617.50 278.50 80.08 a 7.50 0.00 c 2.00 18.00 341.50 765.50 751.50 4262.94
2001 915.00 725.41 a 556.00 438.62 a 94.60 b 9.50 0.00 0.00 a 1.00 193.50 522.41 a 906.00 4362.05
2002 838.00 662.00 650.00 298.00 187.00 0.00 0.00 0.00 36.00 320.50 568.50 868.00 4428.00
2003 638.00 675.50 611.50 493.00 174.00 13.50 0.00 0.00 2.50 113.50 647.50 850.50 4219.50
2004 803.00 821.50 387.50 372.50 137.50 13.50 0.00 1.50 65.00 341.00 662.50 785.00 4390.50
2005 751.00 653.00 590.50 408.50 162.50 30.50 0.00 0.00 59.00 243.00 517.50 807.00 4222.50
2006 806.00 643.00 724.50 361.50 99.00 0.00 0.00 0.00 75.50 335.00 528.50 834.50 4407.50
2007 894.50 636.00 499.62 a 330.00 98.50 14.50 0.00 0.00 67.00 273.00 443.00 898.50 4154.62
2008 922.50 703.00 589.50 412.50 260.50 22.00 0.00 0.00 8.00 223.50 462.00 828.00 4431.50
2009 739.50 704.50 591.00 412.50 44.50 50.00 0.00 1.50 4.50 358.00 520.00 1011.00 4437.00
2010 809.50 689.50 622.50 475.50 263.00 25.00 0.00 4.00 14.50 274.00 654.50 676.66 b 4508.66
2011 868.00 784.00 579.00 410.00 269.18 a 45.50 0.00 0.00 b 15.52 a 251.50 619.50 907.50 4749.70
2012 761.50 723.50 600.76 b 298.97 a 119.00 1.50 0.00 0.00 15.00 a 305.87 a 524.00 885.00 4235.09
2013 906.50 773.50 508.50 17.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 34.00 z 2188.50
Period of Record Statistics
MEAN 886.53 717.28 642.09 431.70 216.06 44.44 1.46 4.20 55.41 304.80 609.77 863.68 4726.30
S.D. 117.53 106.31 97.45 96.26 89.64 32.54 4.33 9.05 46.75 87.27 88.42 110.63 401.98
SKEW 0.78 0.71 0.31 0.36 0.15 0.83 4.23 3.74 1.54 0.15 0.08 0.57 0.77
MAX 1242.50 1100.50 957.50 698.00 437.00 141.50 27.50 53.73 246.50 537.00 826.50 1223.00 6021.57
MIN 638.00 495.70 387.50 248.00 33.00 0.00 0.00 0.00 1.00 113.50 395.00 631.00 4076.00
NO YRS 100 99 95 97 99 96 99 97 95 96 94 101 73