LA TUNA 1 S, TEXAS

Monthly Total Heating Degree Days

(414931)

Base Temperature = 65 F

File last updated on Oct 29, 2012
*** Note *** Provisional Data *** After Year/Month 201206
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
1943 0.00 z 0.00 z 214.50 41.50 2.00 0.00 0.00 0.00 8.00 97.00 398.50 674.77 a 1436.27
1944 759.50 448.00 393.50 119.50 10.00 0.00 0.00 0.00 a 1.00 54.00 393.50 670.12 a 2849.12
1945 0.00 z 425.00 375.00 159.00 7.00 0.00 0.00 0.00 31.00 128.50 419.50 664.00 2209.00
1946 777.00 553.00 336.00 56.50 39.00 0.00 0.00 z 0.00 0.00 60.97 a 447.00 545.00 2814.47
1947 773.00 464.50 340.00 137.00 1.00 0.00 0.00 0.00 0.00 k 74.50 470.17 a 716.00 2976.17
1948 714.55 a 509.65 b 420.29 e 70.50 2.50 0.00 0.00 0.00 2.50 89.00 575.50 558.50 2942.99
1949 817.50 459.50 298.00 154.00 0.50 0.00 0.00 0.00 a 0.00 152.50 319.50 697.00 2898.50
1950 579.50 371.00 266.00 46.50 15.00 0.00 0.00 0.00 0.00 a 2.50 356.00 516.50 2153.00
1951 674.77 a 495.50 343.00 142.50 32.50 0.00 0.00 0.00 0.00 40.00 420.50 573.00 2721.77
1952 500.50 504.00 441.50 97.76 a 4.00 0.00 0.00 0.00 0.00 b 38.00 480.00 691.50 2757.26
1953 509.50 490.50 262.50 106.55 a 81.00 0.00 0.00 0.00 0.00 82.50 381.50 816.00 2730.05
1954 591.50 358.50 310.50 15.00 9.82 a 0.00 0.00 0.00 0.00 54.00 337.00 604.50 2280.82
1955 712.00 558.00 298.50 87.50 3.00 0.00 0.00 0.00 0.00 48.00 374.00 511.50 2592.50
1956 533.00 589.50 266.00 142.00 0.00 0.00 0.00 0.00 0.00 84.00 537.50 669.50 2821.50
1957 492.50 247.50 277.00 103.00 27.38 a 0.00 0.00 0.00 7.00 132.50 513.50 628.00 2428.38
1958 725.00 420.50 452.08 a 133.93 b 3.50 0.00 o 0.00 a 0.00 10.50 138.50 413.33 c 581.00 2878.35
1959 454.50 h 484.52 e 417.97 b 84.50 6.00 0.00 a 0.00 c 0.00 j 0.00 b 64.50 444.23 d 616.00 2117.72
1960 750.50 590.00 275.00 111.11 c 24.50 h 0.00 f 0.00 z 0.00 h 1.61 b 87.50 k 462.50 864.00 3054.72
1961 781.09 c 424.00 f 403.00 d 156.00 j 8.50 f 0.00 0.00 0.00 1.00 152.50 602.00 674.50 2614.09
1962 847.00 433.00 586.13 d 105.60 e 11.22 b 0.00 0.00 0.00 a 2.00 86.00 380.00 679.00 3129.95
1963 868.50 544.00 407.00 139.50 5.50 0.00 0.00 z 0.00 0.50 59.50 0.00 z 744.50 2769.00
1964 885.00 799.50 566.50 232.00 0.00 z 4.00 0.00 0.00 0.00 z 121.42 a 485.50 755.00 3848.92
1965 624.50 627.50 504.50 157.00 34.50 3.50 0.00 0.00 20.50 88.00 221.00 591.50 2872.50
1966 776.00 647.50 307.00 76.50 2.58 a 0.00 a 0.00 0.00 1.50 124.52 a 286.50 664.50 2886.60
1967 697.00 480.50 207.70 a 83.00 37.50 0.00 0.00 a 0.00 1.50 75.50 334.50 723.50 2640.70
1968 680.50 407.00 418.50 187.50 0.00 0.00 1.50 0.00 0.00 30.50 378.00 761.00 2864.50
1969 505.50 476.00 490.00 49.50 25.00 0.00 0.00 0.00 0.00 h 58.50 385.00 546.50 2536.00
1970 615.50 399.50 373.50 100.00 20.00 0.00 0.00 0.00 33.00 132.00 344.00 489.50 2507.00
1971 545.50 435.00 227.50 100.00 0.00 0.00 0.00 0.00 4.00 81.50 302.00 573.00 2268.50
1972 540.50 408.00 84.00 49.00 0.00 0.00 0.00 0.00 1.50 69.00 404.00 582.00 2138.00
1973 0.00 z 505.00 336.00 181.00 20.00 0.00 z 0.00 0.00 z 1.50 50.00 327.50 607.50 2028.50
1974 573.00 507.50 157.00 72.50 0.00 0.00 0.00 0.00 21.00 91.00 414.50 736.50 2573.00
1975 676.50 459.00 306.50 192.50 25.50 0.00 0.00 0.00 7.50 65.50 410.00 632.00 2775.00
1976 671.50 340.00 270.73 a 93.00 16.50 0.00 a 0.00 0.00 0.00 187.00 568.50 730.05 a 2877.28
1977 672.18 a 454.00 400.00 91.00 0.00 0.00 0.00 0.00 0.00 44.50 314.00 488.50 2464.18
1978 602.00 458.50 225.50 52.00 18.50 0.00 0.00 0.00 15.50 81.50 319.50 663.50 2436.50
1979 686.00 459.00 337.50 102.93 a 10.00 0.00 0.00 0.00 13.00 44.50 479.00 633.95 a 2765.88
1980 533.50 405.00 340.48 a 131.00 8.00 0.00 0.00 0.00 0.00 z 174.00 426.96 b 0.00 z 2018.95
1981 626.00 386.00 320.00 44.50 f 8.50 j 0.00 0.00 k 0.00 a 3.00 65.58 e 369.81 d 641.00 2411.38
1982 762.08 a 507.00 0.00 z 75.56 c 25.83 a 0.00 0.00 0.00 z 0.00 160.50 470.50 729.05 c 2730.53
1983 779.13 a 454.50 346.34 b 271.00 27.50 0.00 0.00 e 0.00 0.00 96.50 0.00 z 668.50 2643.48
1984 718.50 521.00 287.50 108.00 4.50 0.00 0.00 b 0.00 z 14.50 162.00 378.00 679.50 2873.50
1985 760.03 b 557.50 313.00 32.00 2.58 a 0.00 z 0.00 0.00 13.00 76.00 314.50 656.50 2725.12
1986 0.00 z 340.50 209.77 a 2.50 1.50 0.00 0.00 0.00 b 1.00 74.83 b 458.00 711.50 1799.59
1987 801.50 496.22 a 386.97 b 176.00 2.00 0.00 0.00 0.00 5.00 20.50 422.00 765.00 3075.19
1988 733.50 481.50 372.00 c 150.00 25.00 1.00 0.00 0.50 3.50 20.50 367.00 717.50 2872.00
1989 710.93 a 424.00 235.00 43.00 5.50 0.00 0.00 0.00 3.50 106.00 372.50 766.50 2666.93
1990 704.00 566.50 264.50 36.50 20.00 0.00 0.00 0.00 4.50 63.50 378.50 672.00 2710.00
1991 662.00 395.50 377.50 78.50 7.00 0.00 0.00 0.00 26.00 72.00 414.00 628.00 2660.50
1992 755.50 476.00 292.50 64.50 2.00 0.00 0.00 0.00 0.00 24.50 528.00 668.00 2811.00
1993 541.50 438.50 280.00 99.50 3.00 0.00 0.00 0.00 0.00 140.00 427.00 622.50 2552.00
1994 646.00 460.00 263.50 74.00 1.00 0.00 0.00 0.00 0.00 62.50 357.00 560.50 2424.50
1995 623.50 302.00 0.00 z 119.50 14.50 0.00 0.00 0.00 1.00 27.00 280.50 562.00 1930.00
1996 568.00 298.00 313.00 91.50 0.00 0.00 0.00 0.00 1.00 102.50 353.50 621.00 2348.50
1997 651.50 467.00 188.00 143.00 0.00 0.00 0.00 0.00 0.00 142.00 389.00 748.50 2729.00
1998 577.00 497.00 347.50 194.00 3.00 0.00 0.00 0.00 0.00 z 73.00 319.00 604.00 2614.50
1999 542.50 a 344.50 212.50 123.50 8.00 0.00 0.00 0.00 a 0.00 103.00 279.00 678.00 2291.00
2000 494.00 345.50 252.50 39.00 0.00 0.00 0.00 0.00 0.00 117.50 518.00 630.33 a 2396.83
2001 704.00 413.50 279.00 65.50 4.00 0.00 0.00 0.00 z 0.00 18.00 302.00 685.62 a 2471.62
2002 594.50 471.50 267.00 6.00 2.50 0.00 0.00 0.00 0.00 0.00 z 397.50 681.50 2420.50
2003 0.00 z 0.00 z 292.00 0.00 z 0.00 0.00 z 0.00 z 0.00 s 0.00 z 0.00 z 0.00 z 0.00 z 292.00
2004 551.00 534.00 180.00 0.00 z 7.50 0.00 z 0.00 0.00 1.00 37.50 434.00 661.50 2406.50
2005 505.00 420.50 298.50 80.00 6.00 0.00 0.00 0.00 0.00 z 0.00 z 0.00 z 557.50 1867.50
2006 520.00 344.96 c 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 0.50 118.50 292.00 658.50 1934.46
2007 690.00 420.00 245.50 80.00 1.00 0.00 0.00 0.00 0.00 46.50 247.50 595.50 2326.00
2008 609.00 365.00 235.08 a 70.71 b 9.50 0.00 0.00 0.00 0.00 62.50 356.50 525.00 2233.30
2009 524.00 359.50 202.00 82.00 0.00 0.00 0.00 0.00 0.00 117.50 345.50 676.50 2307.00
2010 726.00 499.00 346.50 85.50 0.00 0.00 0.00 0.00 0.00 29.00 406.00 496.00 2588.00
2011 558.00 f 0.00 z 120.42 e 16.00 i 4.00 g 0.00 d 0.00 c 0.00 c 0.00 z 57.23 e 399.44 c 761.80 d 1338.89
2012 550.80 c 436.74 d 254.50 0.00 z 0.00 z 0.00 a 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1242.04
Period of Record Statistics
MEAN 655.92 458.15 312.22 101.51 10.51 0.13 0.02 0.01 4.31 82.38 395.42 649.29 2618.71
S.D. 104.28 89.67 95.20 53.03 14.00 0.67 0.19 0.06 7.79 42.67 79.28 80.45 256.07
SKEW 0.15 0.70 0.47 0.71 2.48 5.13 7.75 7.68 2.24 0.46 0.41 0.03 -0.13
MAX 885.00 799.50 586.13 271.00 81.00 4.00 1.50 0.50 33.00 187.00 602.00 864.00 3129.95
MIN 492.50 247.50 84.00 2.50 0.00 0.00 0.00 0.00 0.00 2.50 221.00 488.50 2138.00
NO YRS 63 66 67 63 63 63 63 62 61 65 65 67 41