ELEPHANT BUTTE DAM, NEW MEXICO

Monthly Total Heating Degree Days

(292848)

Base Temperature = 65 F

File last updated on Jul 25, 2006
*** Note *** Provisional Data *** After Year/Month 200603
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
1917 0.00 z 0.00 z 435.03 a 192.50 92.00 0.52 a 0.00 0.00 5.00 111.60 a 366.50 501.17 a 1704.32
1918 745.50 406.50 318.50 162.00 47.50 0.00 f 0.00 0.00 0.50 118.00 530.50 942.92 a 3271.92
1919 0.00 z 590.00 443.00 139.50 10.50 11.50 0.00 a 0.00 12.00 134.00 437.07 a 643.00 2420.57
1920 720.00 425.00 421.50 231.72 a 13.50 0.00 0.00 0.00 0.00 180.50 457.00 734.50 3183.72
1921 616.50 485.50 248.50 159.50 42.50 0.00 0.00 0.00 0.00 73.00 377.00 608.00 2610.50
1922 805.50 569.00 548.50 405.00 a 28.00 0.00 0.00 0.00 0.00 133.00 528.50 497.50 3515.00
1923 590.00 571.00 469.50 122.00 6.00 0.00 0.00 0.00 0.50 158.00 486.00 833.00 3236.00
1924 812.50 523.50 490.50 231.00 7.50 0.00 0.00 0.00 f 5.50 75.50 346.00 749.50 3241.50
1925 779.00 402.00 262.00 82.50 3.00 0.00 0.00 0.00 a 0.00 a 120.50 0.00 z 769.50 2418.50
1926 876.00 460.50 426.00 200.50 31.50 0.00 0.00 0.00 18.00 82.50 392.59 a 719.00 3206.59
1927 562.50 370.00 338.00 139.00 16.50 2.50 0.00 0.00 1.00 93.50 0.00 z 0.00 z 1523.00
1928 725.00 632.00 313.00 0.00 z 50.50 1.00 0.00 2.50 13.00 114.50 547.50 760.50 3159.50
1929 755.00 605.00 438.00 142.00 41.85 a 0.00 0.00 0.00 0.00 234.50 646.50 734.00 3596.85
1930 790.50 457.50 485.00 100.50 73.37 a 0.00 0.00 0.00 2.00 148.50 579.00 860.50 3496.87
1931 819.50 577.50 461.00 223.00 36.50 0.00 0.00 0.00 3.00 109.50 506.50 785.00 3521.50
1932 861.50 453.50 438.50 115.00 29.50 0.00 0.00 0.00 23.00 155.00 431.50 782.50 3290.00
1933 752.00 631.50 284.00 223.00 52.50 0.00 0.00 0.00 0.00 31.00 408.50 579.50 2962.00
1934 706.00 397.00 256.00 71.00 1.50 0.00 0.00 0.00 0.00 62.50 391.50 622.00 2507.50
1935 635.50 530.00 327.50 127.50 105.50 0.00 0.00 a 0.00 30.50 114.00 471.50 723.00 3065.00
1936 739.50 503.50 330.00 126.50 13.00 0.00 0.00 0.00 53.50 174.00 537.00 676.00 3153.00
1937 818.50 545.50 477.00 153.00 18.50 0.00 0.00 0.00 0.00 93.50 364.50 639.00 3109.50
1938 668.00 461.50 322.50 167.50 35.50 0.00 0.00 0.00 1.00 82.00 550.50 646.00 2934.50
1939 753.00 681.00 376.50 122.00 0.50 0.00 0.00 0.00 0.50 168.50 482.50 639.50 3224.00
1940 806.50 537.50 330.00 176.50 18.50 0.00 0.00 0.00 2.00 136.00 526.00 615.00 3148.00
1941 736.00 485.00 471.00 279.50 40.00 0.00 0.00 0.00 9.50 169.00 439.00 638.50 3267.50
1942 679.00 577.50 467.00 168.50 27.50 0.00 0.00 0.00 9.00 157.00 364.44 c 576.50 3026.44
1943 656.00 420.56 c 341.50 87.00 23.00 0.00 0.00 0.00 17.00 102.00 470.00 777.00 2894.06
1944 839.00 550.50 459.50 230.00 21.50 0.00 0.00 0.00 10.00 93.00 533.50 763.00 3500.00
1945 745.50 482.00 457.50 216.50 4.00 3.00 0.00 0.00 29.50 95.50 411.50 759.00 3204.00
1946 836.00 548.00 370.00 43.50 13.00 0.00 0.00 0.00 3.50 102.50 538.50 617.50 3072.50
1947 842.00 479.50 368.50 157.50 5.00 4.50 0.00 z 0.00 0.00 a 62.00 561.00 791.50 3271.50
1948 836.50 625.50 526.50 111.00 10.50 1.00 0.00 0.00 2.00 124.50 580.00 635.50 3453.00
1949 937.50 598.50 349.00 207.41 a 10.50 0.00 a 0.00 0.00 3.00 192.50 345.00 736.00 3379.41
1950 632.00 412.00 320.00 74.50 16.00 0.00 0.00 0.00 4.00 3.00 343.00 564.50 2369.00
1951 683.50 573.00 431.00 174.50 39.50 0.00 0.00 0.00 a 0.00 74.50 476.50 718.00 3170.50
1952 615.00 594.50 543.00 157.00 14.00 1.00 0.00 0.00 3.50 49.50 540.50 781.00 3299.00
1953 538.50 558.50 312.58 a 128.50 115.50 0.00 0.00 0.00 0.00 106.00 399.50 867.00 3026.08
1954 678.50 394.00 400.50 29.50 20.00 0.00 0.00 0.00 0.50 66.50 346.67 c 700.50 2636.67
1955 794.00 642.00 411.00 200.00 49.00 0.00 0.00 0.00 0.00 71.00 448.00 620.50 3235.50
1956 597.50 699.50 356.50 206.50 12.00 0.00 0.00 0.00 0.00 121.00 583.50 764.50 3341.00
1957 603.00 313.50 395.50 208.50 71.00 0.00 0.00 a 0.00 1.50 199.00 560.00 661.00 3013.00
1958 772.00 433.50 536.00 195.00 10.50 0.00 0.00 0.00 19.50 192.00 454.50 600.00 3213.00
1959 662.50 523.00 388.00 126.00 9.00 0.00 0.00 0.00 0.00 72.50 490.50 704.00 2975.50
1960 846.00 658.00 295.50 113.50 37.50 0.00 0.00 0.00 0.00 163.50 421.50 990.50 3526.00
1961 879.00 489.00 364.50 132.00 38.00 0.00 0.00 0.00 5.50 111.50 592.50 706.50 3318.50
1962 821.00 416.50 557.50 103.50 25.00 0.00 0.00 0.00 8.50 110.00 359.50 688.00 3089.50
1963 824.00 500.00 388.50 122.00 0.57 d 0.00 0.00 0.00 0.00 45.00 426.00 777.00 3083.07
1964 868.00 790.50 499.00 237.00 53.50 0.00 0.00 0.00 2.00 101.50 465.00 740.00 3756.50
1965 481.00 i 488.00 g 493.50 197.00 53.00 8.50 0.00 z 0.00 13.50 115.00 335.00 693.50 1909.00
1966 869.00 678.00 379.50 144.00 15.50 0.00 0.00 0.00 0.50 138.00 345.50 708.00 3278.00
1967 705.00 478.00 258.00 137.50 57.50 0.00 0.00 0.00 4.50 100.00 386.50 814.50 2941.50
1968 731.50 476.00 432.50 233.00 33.50 2.50 0.50 0.00 2.50 64.00 461.00 774.00 3211.00
1969 546.50 541.00 526.50 99.50 66.00 0.00 0.00 0.00 0.00 173.00 472.50 653.50 3078.50
1970 725.00 506.50 475.50 247.50 42.00 0.00 0.00 0.00 33.00 233.50 414.50 622.50 3300.00
1971 684.50 494.50 347.00 213.00 39.50 0.00 0.00 0.00 37.00 185.00 454.00 753.00 3207.50
1972 648.00 465.50 178.50 114.50 10.00 1.50 0.00 0.00 2.00 128.00 585.50 705.00 2838.50
1973 832.00 625.50 505.00 292.00 52.50 0.00 0.00 0.00 3.50 69.50 323.00 641.50 3344.50
1974 666.50 577.50 208.00 147.00 4.00 0.00 0.00 0.00 24.00 151.00 442.00 801.87 a 3021.87
1975 770.00 530.50 418.50 284.48 a 51.00 0.00 0.00 0.00 22.50 97.00 425.00 709.26 b 3308.24
1976 728.00 417.00 362.00 142.00 38.50 0.00 0.00 0.00 3.50 231.00 576.00 777.00 3275.00
1977 772.50 532.50 483.00 157.50 7.50 0.00 m 0.00 0.00 0.00 68.00 360.50 520.00 2901.50
1978 639.00 541.50 294.50 76.50 46.50 0.00 0.00 0.00 26.50 111.50 396.50 750.50 2883.00
1979 780.00 520.50 375.00 172.50 51.00 1.00 0.00 0.00 21.72 a 74.00 558.50 704.50 3258.72
1980 619.00 486.79 a 421.00 199.00 35.00 0.00 c 0.00 0.00 0.00 228.50 474.50 583.50 3047.29
1981 660.00 449.00 394.00 73.50 3.00 0.00 0.00 0.00 4.50 152.00 351.00 605.50 2692.50
1982 702.50 558.00 361.00 120.00 40.00 0.00 0.00 0.00 3.50 180.00 492.50 797.00 3254.50
1983 746.50 531.50 374.50 311.50 69.50 0.00 0.00 0.00 3.00 119.50 429.50 672.00 3257.50
1984 766.50 562.00 336.00 178.00 8.50 0.00 0.00 0.00 32.00 239.50 436.00 752.00 3310.50
1985 796.00 574.00 375.50 105.00 12.00 2.00 0.00 0.00 22.50 157.00 381.50 687.50 3113.00
1986 642.00 439.50 339.00 92.00 24.50 8.00 0.00 0.00 17.50 210.50 522.00 799.00 3094.00
1987 825.00 590.50 527.00 226.00 28.00 0.00 0.00 0.00 0.00 59.00 503.50 839.50 3598.50
1988 834.50 569.50 414.00 203.50 46.00 2.00 0.00 0.50 4.50 47.50 395.00 813.50 3330.50
1989 799.00 520.50 242.50 51.50 17.50 0.00 0.00 0.00 0.00 119.00 388.00 799.50 2937.50
1990 765.50 568.00 364.50 116.50 43.00 0.00 0.00 0.00 6.50 118.50 444.50 784.50 3211.50
1991 752.50 490.00 456.50 98.00 10.50 6.00 0.00 0.00 z 30.50 113.50 569.50 803.50 3330.50
1992 886.50 606.00 375.00 96.50 41.50 0.00 0.00 0.00 0.50 62.50 568.50 840.50 3477.50
1993 647.00 531.50 362.00 144.50 17.50 0.00 0.00 0.00 0.00 184.00 522.50 740.50 3149.50
1994 722.50 585.00 344.50 152.50 17.00 0.00 0.00 0.00 0.50 182.50 510.00 712.00 3226.50
1995 780.50 435.00 375.50 274.00 39.00 0.00 0.00 0.00 21.50 72.50 356.00 650.00 3004.00
1996 684.50 423.00 440.00 171.00 3.00 0.00 0.00 0.00 13.50 194.00 424.00 685.50 3038.50
1997 800.00 606.00 344.00 259.00 0.00 0.00 0.00 0.00 8.50 185.00 443.50 864.50 3510.50
1998 681.50 566.50 450.00 281.50 11.00 3.00 0.00 0.00 0.00 z 70.00 s 366.00 663.00 3022.50
1999 599.50 428.00 381.50 231.50 24.50 1.00 0.00 0.00 4.00 134.50 336.50 757.50 2898.50
2000 567.00 473.00 486.18 a 99.50 4.65 a 0.00 0.00 0.00 0.00 z 219.50 644.00 675.50 3169.33
2001 833.90 a 532.00 403.00 164.00 14.00 0.00 z 0.00 e 0.00 0.00 26.00 g 450.58 d 737.00 3134.48
2002 658.50 583.50 387.50 33.00 7.00 0.00 0.00 0.00 4.00 122.50 462.00 737.00 2995.00
2003 575.50 524.00 403.00 0.00 z 2.00 0.00 z 0.00 0.00 0.00 34.50 359.00 655.50 2553.50
2004 658.00 639.00 245.00 203.50 22.50 0.00 0.00 0.00 7.50 96.00 492.00 692.50 3056.00
2005 522.50 463.00 360.12 a 162.50 21.00 0.00 0.00 0.00 s 0.00 177.00 450.50 871.00 3027.62
2006 842.00 0.00 z 606.00 41.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1489.00
Period of Record Statistics
MEAN 732.48 525.29 395.06 162.14 28.90 0.71 0.01 0.03 7.80 124.55 457.73 716.88 3161.09
S.D. 94.60 83.11 84.40 68.87 23.49 1.98 0.05 0.27 10.97 53.42 80.08 92.06 253.75
SKEW -0.22 0.23 -0.03 0.55 1.25 3.63 9.17 8.65 1.75 0.27 0.27 0.08 -0.52
MAX 937.50 790.50 606.00 405.00 115.50 11.50 0.50 2.50 53.50 239.50 646.50 990.50 3756.50
MIN 522.50 313.50 178.50 29.50 0.00 0.00 0.00 0.00 0.00 3.00 323.00 497.50 2369.00
NO YRS 87 87 90 88 89 85 87 86 87 87 87 88 73