CARLSBAD CAVERN CITY AP, NEW MEXICO

Monthly Total Heating Degree Days

(291475)

Base Temperature = 65 F

File last updated on Apr 4, 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
1942 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 568.50 568.50
1943 0.00 z 0.00 z 411.50 0.00 z 0.00 y 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 411.50
1944 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
1945 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
1946 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
1947 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
1948 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 0.00 11.50 115.50 467.00 455.50 1049.50
1949 760.00 f 451.00 253.50 178.50 4.50 0.00 0.00 0.50 3.00 191.00 267.50 679.00 2028.50
1950 494.50 355.50 329.50 126.00 23.50 0.00 0.00 0.00 1.00 3.00 363.50 503.00 2199.50
1951 670.00 469.50 368.50 163.50 21.00 8.00 0.00 0.00 7.00 59.50 424.00 546.00 2737.00
1952 441.50 465.50 390.00 108.50 38.00 0.00 6.00 0.00 12.50 112.00 520.00 646.00 2740.00
1953 391.50 501.00 207.00 101.50 74.00 0.00 0.00 0.00 0.00 96.50 358.00 757.00 2486.50
1954 525.00 320.00 348.50 37.00 34.50 0.00 0.00 0.00 0.00 105.00 324.50 585.50 2280.00
1955 693.50 559.50 283.50 80.50 5.00 2.50 0.00 0.00 0.00 76.50 400.00 509.50 2610.50
1956 559.00 607.00 275.50 149.00 0.00 0.00 0.00 0.00 0.00 75.00 494.00 554.50 2714.00
1957 587.00 251.50 292.50 160.00 15.00 1.00 0.00 0.00 0.00 c 165.50 f 535.00 548.00 2390.00
1958 730.50 507.50 496.00 155.50 4.50 0.00 0.00 0.00 27.00 183.50 406.00 687.50 3198.00
1959 669.50 518.00 352.50 154.50 0.00 0.00 0.00 0.00 1.50 94.50 477.00 579.00 2846.50
1960 702.00 587.00 353.50 100.00 23.50 0.00 0.00 0.00 0.00 97.00 368.00 848.50 3079.50
1961 774.50 481.00 321.50 139.50 2.50 3.00 0.00 0.00 6.00 84.00 543.00 607.50 2962.50
1962 811.50 300.00 418.00 87.50 9.00 0.00 0.00 0.00 2.50 88.00 369.50 652.00 2738.00
1963 827.00 472.00 304.50 50.00 16.50 0.00 0.00 0.00 1.00 13.00 366.50 779.50 2830.00
1964 726.50 696.00 331.00 88.00 5.00 0.50 0.00 0.00 11.50 78.50 404.50 589.00 2930.50
1965 544.50 602.50 523.00 53.00 8.50 0.00 0.00 0.00 6.00 77.50 225.50 539.50 2580.00
1966 817.50 603.00 274.00 79.00 14.50 0.00 0.00 0.50 1.00 201.00 346.50 768.50 3105.50
1967 743.50 519.00 151.00 12.00 19.50 0.00 0.00 0.00 1.50 99.00 348.00 746.50 2640.00
1968 640.00 533.00 404.50 122.00 11.50 0.00 0.00 0.00 0.00 74.00 419.50 648.00 2852.50
1969 506.50 455.00 575.50 48.50 12.50 1.50 0.00 0.00 0.00 215.00 445.50 606.00 2866.00
1970 722.00 481.50 464.50 137.50 50.00 6.50 0.00 0.00 54.00 228.00 395.50 523.00 3062.50
1971 589.00 524.50 287.50 144.50 13.00 0.00 0.00 0.00 63.00 141.00 404.00 651.00 2817.50
1972 716.00 492.00 191.50 59.50 11.50 0.00 0.00 0.00 14.00 179.50 605.50 742.00 3011.50
1973 794.00 617.50 378.00 247.00 51.50 0.00 0.00 0.00 13.50 90.50 336.00 626.50 3154.50
1974 680.00 507.00 172.50 100.00 2.50 0.00 0.00 0.00 68.00 139.50 454.00 690.00 2813.50
1975 607.50 477.50 405.00 212.00 4.50 0.00 0.00 0.00 48.00 92.00 433.00 637.50 2917.00
1976 728.00 333.00 315.00 93.50 44.50 0.00 0.00 0.00 19.50 241.00 633.00 749.00 3156.50
1977 805.50 476.00 392.50 99.50 0.00 0.00 0.00 0.00 0.00 75.00 342.50 468.00 2659.00
1978 784.50 574.50 243.00 26.00 16.00 0.00 0.00 0.00 49.50 151.00 410.89 b 747.00 3002.39
1979 888.00 566.00 393.00 106.50 23.00 1.00 0.00 0.00 19.50 86.50 511.00 626.00 3220.50
1980 658.50 525.00 395.50 211.50 39.50 0.00 0.00 0.00 11.00 211.00 583.50 623.50 3259.00
1981 724.00 542.00 414.00 124.00 18.50 0.00 0.00 0.00 10.50 166.50 0.00 z 0.00 z 1999.50
1982 0.00 z 0.00 z 266.50 112.50 24.00 0.00 0.00 0.00 0.00 175.00 469.50 759.00 1806.50
1983 820.50 508.00 317.50 283.50 14.50 0.00 0.00 0.00 14.00 75.00 318.50 803.00 3154.50
1984 793.50 517.00 330.50 122.50 7.00 0.00 0.00 0.00 50.50 178.50 438.00 608.00 3045.50
1985 789.00 596.00 326.00 76.00 9.00 0.50 0.00 0.00 38.00 134.50 315.50 728.50 3013.00
1986 599.00 417.50 235.00 47.50 20.00 0.00 0.00 0.00 0.00 138.00 494.00 725.00 2676.00
1987 720.50 512.00 461.50 225.00 13.00 0.00 0.00 0.00 3.00 47.50 441.00 732.00 3155.50
1988 792.00 526.00 373.00 118.50 16.50 0.00 0.00 2.50 10.00 51.00 334.00 681.00 2904.50
1989 637.50 543.00 253.00 84.00 5.50 0.00 0.00 0.00 21.00 95.00 344.00 810.00 2793.00
1990 612.00 453.00 318.50 80.50 46.00 0.00 0.00 2.50 3.00 96.00 324.50 629.50 2565.50
1991 719.50 393.00 258.00 54.50 4.00 0.00 0.00 0.00 55.00 108.50 494.00 631.00 2717.50
1992 741.00 451.50 277.50 106.00 23.00 2.00 0.00 0.00 0.50 36.00 523.50 629.50 2790.50
1993 623.00 481.50 296.50 100.50 14.00 0.00 0.00 0.50 7.50 184.00 479.48 a 603.98 a 2790.97
1994 659.50 440.50 248.50 79.50 5.50 0.00 0.00 0.00 2.50 97.50 345.00 520.50 2399.00
1995 589.00 321.50 323.50 139.50 0.00 0.00 0.00 0.00 26.00 60.00 305.00 575.00 2339.50
1996 603.00 397.00 396.00 117.50 0.00 0.00 0.00 0.00 13.00 133.00 396.00 532.00 2587.50
1997 690.50 568.50 253.50 219.50 12.00 0.00 0.00 0.00 3.50 145.00 447.50 764.50 3104.50
1998 535.00 433.50 358.00 157.50 0.00 0.00 0.00 0.00 0.00 74.00 297.50 627.50 2483.00
1999 500.50 305.00 262.50 94.50 8.00 0.00 0.00 0.00 16.50 93.50 235.50 0.00 z 1516.00
2000 520.50 283.00 224.00 0.00 z 2.00 0.00 z 0.00 z 0.00 z 12.00 0.00 z 585.50 751.00 2378.00
2001 747.00 444.50 379.50 59.50 3.00 0.00 0.00 0.00 0.00 51.00 341.50 662.00 2688.00
2002 589.50 554.00 392.00 47.50 3.00 0.00 0.00 0.00 0.50 157.00 449.00 649.00 2841.50
2003 584.00 473.00 268.50 63.00 11.00 0.00 0.00 0.00 0.00 50.00 339.50 628.50 2417.50
2004 599.50 593.50 236.00 144.00 19.50 0.00 1.50 0.00 9.50 73.50 507.00 676.50 2860.50
2005 558.00 487.00 386.50 135.50 49.50 0.00 0.00 0.00 1.00 122.50 320.00 636.50 2696.50
2006 491.50 450.00 268.00 27.50 0.00 0.00 0.00 0.00 15.50 135.50 356.50 684.00 2428.50
2007 796.00 475.00 251.00 168.00 37.50 0.00 0.00 0.00 0.50 87.50 388.50 621.50 2825.50
2008 712.00 396.00 304.00 118.00 26.00 0.00 0.00 0.00 0.50 115.50 398.50 607.00 2677.50
2009 591.00 368.00 226.00 96.00 2.50 0.00 0.00 0.00 12.93 a 156.50 356.00 797.00 2605.93
2010 716.00 556.50 371.50 100.50 25.50 0.00 0.00 0.00 0.00 38.00 424.00 558.00 2790.00
2011 692.00 548.50 146.00 35.50 34.00 0.00 0.00 0.00 0.50 94.50 357.50 816.00 2724.50
2012 559.00 518.50 221.50 33.50 23.00 0.00 0.00 0.00 3.00 125.00 305.50 593.00 2382.00
2013 699.50 487.00 272.80 a 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 1459.30
Period of Record Statistics
MEAN 664.02 482.34 321.51 111.16 16.81 0.42 0.12 0.10 12.05 112.21 408.02 648.87 2791.87
S.D. 108.34 90.11 86.31 56.68 15.75 1.39 0.77 0.45 17.28 52.88 88.54 91.76 253.76
SKEW -0.25 -0.52 0.42 0.73 1.32 4.20 7.22 4.96 1.81 0.45 0.43 0.13 -0.19
MAX 888.00 696.00 575.50 283.50 74.00 8.00 6.00 2.50 68.00 241.00 633.00 848.50 3259.00
MIN 391.50 251.50 146.00 12.00 0.00 0.00 0.00 0.00 0.00 3.00 225.50 455.50 2199.50
NO YRS 63 64 66 63 64 63 64 64 65 63 64 64 58