MIDLAND 4 ENE, TEXAS

Monthly Total Heating Degree Days

(415891)

Base Temperature = 65 F

File last updated on Oct 29, 2012
*** Note *** Provisional Data *** After Year/Month 201210
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
1894 0.00 z 0.00 z 0.00 z 9.50 p 25.50 0.00 0.00 0.00 5.00 22.50 226.50 f 508.00 561.00
1895 407.50 j 756.50 207.04 c 71.50 40.30 a 0.00 0.00 0.00 9.00 147.50 385.00 578.09 d 2194.93
1896 601.83 b 474.00 255.50 17.68 b 0.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1349.01
1897 0.00 z 0.00 z 89.50 p 119.50 5.00 0.00 0.00 0.00 c 0.00 51.00 294.50 0.00 z 470.00
1898 580.73 a 0.00 z 0.00 z 74.00 i 0.00 z 0.00 z 0.00 z 0.00 0.00 z 0.00 z 0.00 z 0.00 z 580.73
1899 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
1900 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
1901 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
1902 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
1903 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
1904 0.00 z 0.00 z 276.00 86.50 q 27.50 1.50 0.00 0.00 f 0.00 f 173.08 a 486.50 708.19 b 1672.77
1905 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
1906 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
1907 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
1908 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
1909 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 u 0.00 z 0.00 z 0.00 z 0.00 z 0.00
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 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1911 0.00 z 0.00 z 53.00 i 63.75 b 0.00 z 0.00 z 0.00 k 0.00 q 0.00 179.00 437.07 a 704.00 1383.82
1912 672.50 552.50 420.00 102.00 24.00 4.50 0.00 0.00 21.00 69.50 377.50 653.00 2896.50
1913 602.00 563.50 422.50 99.83 a 0.00 0.00 l 0.00 l 0.00 b 55.56 c 193.00 296.11 c 0.00 z 2232.49
1914 0.00 z 0.00 z 214.50 j 147.86 b 44.43 a 0.00 0.00 0.00 b 15.00 171.00 265.20 e 839.38 e 1482.88
1915 670.12 a 333.00 566.00 119.50 17.10 b 3.00 1.00 3.62 a 10.71 b 34.62 a 296.50 524.00 2579.17
1916 553.87 a 363.54 a 133.00 138.10 a 35.13 a 0.00 0.00 0.00 22.24 a 81.00 381.50 635.50 a 2343.88
1917 664.95 a 396.50 284.17 d 61.00 50.12 a 0.00 b 0.00 h 0.00 n 7.00 i 177.00 261.00 749.17 a 2643.90
1918 1077.50 863.33 a 0.00 z 90.00 l 0.00 z 0.00 o 0.00 a 0.00 38.50 0.00 z 0.00 z 0.00 z 1979.33
1919 834.50 445.93 a 322.50 75.00 16.50 21.72 a 0.00 0.00 e 60.00 b 0.00 z 0.00 z 683.00 2459.15
1920 1083.45 a 0.00 z 600.50 182.50 0.00 z 0.00 z 0.00 12.00 8.00 84.00 484.00 664.50 3118.95
1921 555.00 685.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 0.00 z 140.50 0.00 z 0.00 z 0.00 z 1381.00
1922 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 a 0.00 0.00 a 0.00 116.50 393.62 a 502.72 a 1012.84
1923 443.30 a 603.50 527.00 139.00 13.43 a 0.00 a 0.00 0.00 l 0.00 220.10 a 456.50 679.70 d 3082.54
1924 770.87 a 603.50 491.87 a 157.76 a 57.19 b 0.00 f 0.00 0.00 b 33.89 c 70.55 b 290.36 b 665.50 3141.48
1925 708.00 251.50 146.00 0.00 z 10.16 b 0.00 h 0.00 h 0.00 e 1.50 j 238.24 d 429.81 d 571.50 h 1783.70
1926 702.67 a 342.50 338.79 c 192.32 b 23.00 0.00 0.00 a 0.00 67.00 73.50 0.00 z 770.23 e 2510.00
1927 396.50 i 350.50 199.50 m 45.50 f 3.10 a 3.50 h 0.00 0.00 c 0.00 s 57.41 d 189.00 446.50 k 600.01
1928 522.02 c 523.50 217.00 a 215.69 a 18.27 c 0.00 o 0.00 g 5.00 x 0.00 u 0.00 z 431.79 b 630.85 a 2559.11
1929 635.00 698.50 312.50 f 55.18 b 40.82 a 0.00 0.00 b 0.00 13.39 b 139.50 573.89 c 588.50 2744.78
1930 897.00 373.52 c 459.32 a 32.00 4.50 z 0.00 f 0.00 0.00 7.00 106.95 a 399.50 686.00 2961.29
1931 598.00 409.50 407.50 177.93 a 42.50 0.00 0.00 0.00 a 0.00 59.00 299.50 716.62 a 2710.55
1932 700.00 370.50 524.50 97.50 27.00 0.00 0.00 0.00 34.50 186.00 502.00 797.70 c 3239.70
1933 556.00 638.00 286.00 181.00 21.50 0.00 0.00 0.00 a 0.00 17.50 293.50 491.35 a 2484.85
1934 625.17 a 484.00 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 1109.17
1935 0.00 z 0.00 z 213.42 e 103.00 g 72.69 b 0.00 0.00 c 0.00 34.00 118.32 a 392.14 b 636.57 b 1467.14
1936 424.00 m 387.00 j 230.12 e 151.50 g 0.52 a 0.00 f 0.00 a 0.00 c 52.50 f 313.88 c 404.50 g 580.96 d 1125.47
1937 818.63 d 501.00 453.12 a 83.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 88.00 x 597.78 a 2453.53
1938 542.00 338.50 176.50 159.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1216.50
1939 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
1940 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 x 0.00 a 0.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1941 0.00 z 191.00 r 297.50 75.00 0.00 z 0.00 0.00 0.00 2.00 37.50 237.50 477.50 1127.00
1942 573.50 333.50 218.00 38.00 19.50 0.00 0.00 0.00 z 0.00 z 0.00 z 0.00 z 470.00 1652.50
1943 567.00 338.50 303.00 16.00 28.50 0.00 0.00 0.00 k 17.50 76.50 384.00 627.50 2358.50
1944 574.50 314.50 248.00 82.50 5.50 0.00 0.00 0.00 0.00 70.50 334.00 682.50 2312.00
1945 539.50 370.50 147.50 119.00 17.50 0.00 0.00 0.00 1.50 94.50 275.00 648.50 2213.50
1946 673.00 429.50 218.50 23.50 12.50 0.00 0.00 0.00 3.50 22.00 308.50 476.00 2167.00
1947 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 0.00 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 0.00 a 0.00 a 10.34 a 84.45 b 357.32 b 404.00 856.11
1949 0.00 z 0.00 z 135.00 l 0.00 z 0.00 p 0.00 t 0.00 e 0.00 2.50 140.00 246.50 550.50 939.50
1950 448.50 278.50 g 221.28 b 86.00 16.50 0.00 0.00 0.00 0.00 z 5.74 d 290.50 298.50 q 1068.52
1951 657.50 385.50 306.50 104.00 21.00 k 4.00 0.00 0.00 0.00 80.00 437.00 535.00 2509.50
1952 407.00 379.50 301.50 15.00 s 25.83 a 0.00 0.00 h 0.00 a 14.46 b 114.50 377.50 0.00 z 1620.30
1953 331.00 475.50 54.50 i 56.00 26.00 0.00 a 0.00 f 0.00 0.00 77.00 337.00 685.50 1988.00
1954 509.00 261.50 321.50 36.50 40.00 0.00 f 0.00 0.00 0.00 76.00 318.00 475.50 2038.00
1955 659.00 488.50 245.00 0.00 z 0.00 1.00 0.00 0.00 0.00 74.40 a 359.00 504.00 2330.90
1956 582.50 496.00 229.50 113.79 a 0.00 0.00 0.00 0.00 0.00 42.88 a 423.00 527.50 2415.18
1957 0.00 z 276.00 250.50 134.00 18.00 7.00 0.00 0.00 2.00 151.50 499.50 494.00 1832.50
1958 684.00 537.50 495.50 150.00 16.00 0.00 0.00 0.00 5.00 143.50 327.00 432.00 i 2358.50
1959 639.93 c 477.50 318.50 163.97 a 4.00 0.00 0.00 0.00 0.00 89.00 494.00 540.00 2726.89
1960 647.50 607.50 412.50 66.50 30.50 0.00 0.00 0.00 4.50 72.00 298.50 758.50 2898.00
1961 785.50 460.50 252.50 107.00 7.00 2.50 0.00 0.00 6.00 59.50 437.50 607.50 2725.50
1962 782.00 299.00 336.00 f 89.00 3.50 0.00 0.00 0.00 1.50 62.50 307.00 579.50 2124.00
1963 762.50 468.00 265.00 37.50 11.50 0.00 0.00 0.00 4.00 10.50 319.00 767.50 2645.50
1964 678.50 638.00 310.50 57.00 1.11 c 3.00 0.00 z 0.00 9.50 70.50 306.00 548.00 2622.11
1965 503.00 521.50 486.00 47.00 7.50 0.00 0.00 0.00 7.00 125.50 234.00 435.00 2366.50
1966 816.50 598.00 271.50 93.50 45.00 0.00 h 0.00 0.00 0.00 157.00 231.00 678.50 2891.00
1967 643.00 490.50 168.50 16.50 22.00 0.00 0.00 0.00 8.50 90.00 320.50 689.00 2448.50
1968 590.15 d 522.50 325.00 109.00 2.50 0.00 0.00 0.00 0.00 67.00 393.00 612.00 2621.15
1969 475.50 438.00 491.00 53.50 10.00 0.00 0.00 0.00 0.00 180.50 381.00 522.00 2551.50
1970 678.00 462.50 413.00 90.00 38.50 5.50 0.00 0.00 42.50 177.50 385.00 442.50 2735.00
1971 538.50 450.50 283.50 94.50 15.00 0.00 0.00 0.00 44.50 49.50 365.00 513.50 2354.50
1972 606.50 437.50 144.50 35.50 3.00 0.00 0.00 0.00 8.50 141.50 521.00 648.50 2546.50
1973 807.00 566.50 270.00 224.50 36.00 0.00 0.00 0.00 d 5.50 s 67.00 245.50 553.50 2770.00
1974 609.50 453.50 110.50 68.00 2.00 0.00 0.00 0.00 53.00 80.50 382.50 645.50 2405.00
1975 597.00 471.50 322.00 144.00 1.00 2.50 0.00 0.00 46.00 92.50 356.50 594.50 2627.50
1976 654.00 276.54 a 271.50 90.00 b 26.00 0.00 0.00 0.00 a 18.50 249.60 b 570.58 d 676.00 2832.72
1977 790.00 434.00 347.50 0.00 z 1.00 0.00 0.00 0.00 0.00 50.50 312.41 a 472.20 c 2407.61
1978 816.00 638.50 287.00 29.00 6.72 a 0.00 a 0.00 0.00 27.00 78.50 f 342.93 a 679.50 2826.65
1979 868.00 a 519.56 a 306.00 114.00 42.76 b 5.17 a 0.00 c 0.00 3.50 69.75 e 464.50 615.50 3008.74
1980 424.50 g 488.34 a 320.50 73.85 d 3.50 0.00 0.00 0.00 17.00 130.00 483.00 509.95 a 2026.14
1981 620.00 482.00 363.00 94.82 b 19.50 0.00 0.00 0.00 0.00 122.50 244.66 a 424.00 2370.48
1982 540.00 511.50 230.50 88.00 24.50 0.00 0.00 0.00 0.00 94.50 380.00 527.50 f 1869.00
1983 658.50 428.00 314.50 196.50 13.50 1.50 0.00 0.00 9.00 25.00 273.10 a 825.50 2745.10
1984 730.10 b 476.00 300.50 124.66 a 0.00 0.00 0.00 0.00 49.00 132.00 397.50 479.00 2688.76
1985 815.62 b 486.89 a 274.02 c 48.00 0.00 0.00 d 0.00 0.00 26.50 32.55 a 287.07 a 696.50 2667.15
1986 540.50 346.00 192.50 25.50 0.50 0.00 0.00 0.00 0.00 129.68 a 396.21 a 622.50 2253.39
1987 655.13 a 474.00 431.93 a 165.00 4.00 0.00 a 0.00 0.00 0.00 17.50 364.00 599.85 a 2711.42
1988 756.00 469.00 287.50 79.50 10.50 0.00 0.00 a 0.00 5.50 30.00 285.00 606.00 2529.00
1989 528.50 546.50 233.50 87.86 b 0.00 a 0.00 0.00 0.00 21.00 74.50 314.00 758.50 2564.36
1990 531.50 379.50 287.00 77.00 53.00 0.00 0.00 0.00 0.00 70.00 280.50 621.00 2299.50
1991 699.00 391.50 209.50 36.00 4.50 0.00 0.00 0.00 42.00 82.50 469.50 576.00 2510.50
1992 677.50 380.00 201.50 74.50 15.50 0.00 0.00 0.00 0.50 22.50 418.50 519.00 2309.50
1993 625.50 454.50 280.50 80.50 4.00 0.00 0.00 0.00 9.50 139.50 427.50 535.00 2556.50
1994 612.00 426.50 269.50 87.00 22.00 0.00 0.00 0.00 0.00 49.00 257.00 472.00 2195.00
1995 554.50 327.50 308.00 78.00 0.00 0.00 0.00 0.00 18.00 43.00 277.00 562.00 2168.00
1996 620.50 394.50 362.70 a 91.00 0.00 0.00 0.00 0.00 12.93 a 76.50 271.67 c 485.00 2314.80
1997 662.37 a 480.15 a 172.50 171.00 6.00 0.00 0.00 0.00 0.00 121.00 413.50 648.42 a 2674.93
1998 477.50 418.50 319.00 101.50 0.00 0.00 0.00 0.00 0.00 44.50 232.50 588.50 2182.00
1999 476.88 a 211.56 a 260.63 d 65.50 0.50 0.00 0.00 0.00 a 0.60 e 49.27 c 200.17 a 532.50 1797.61
2000 462.93 a 227.86 a 132.55 b 55.34 a 0.00 0.00 a 0.00 b 0.00 a 10.34 a 94.60 b 494.42 d 690.55 b 2168.61
2001 667.53 a 401.69 b 340.48 a 20.50 0.50 0.00 0.00 0.00 b 3.00 44.36 b 287.00 508.92 a 2273.99
2002 536.50 492.50 308.00 51.50 0.00 0.00 0.00 0.00 0.00 134.00 414.50 597.00 2534.00
2003 576.00 352.00 g 208.50 41.50 3.50 0.00 0.00 0.00 0.00 z 27.00 274.00 519.50 1650.00
2004 520.50 524.50 156.50 0.00 z 7.50 0.00 a 1.00 g 0.00 e 0.00 n 44.50 k 413.40 e 356.00 k 1622.40
2005 0.00 z 436.00 288.50 91.15 d 0.00 z 0.00 0.00 0.00 0.00 54.25 e 221.00 f 552.50 1422.40
2006 379.75 c 0.00 z 219.50 15.00 0.00 z 0.00 0.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 614.25
2007 769.32 a 0.00 z 126.00 0.00 z 28.00 0.00 0.00 z 0.00 z 0.00 42.00 283.93 b 0.00 z 1249.25
2008 621.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 0.00 0.00 0.00 h 79.00 313.00 498.50 1512.00
2009 505.00 0.00 z 201.50 73.00 1.00 0.00 0.00 0.00 7.00 112.00 261.00 667.00 1827.50
2010 628.00 541.00 270.00 74.50 19.50 0.00 0.00 f 0.00 0.00 f 11.50 i 308.00 473.00 2314.00
2011 612.50 508.48 c 119.00 8.00 18.50 0.00 0.00 0.00 b 0.00 59.00 276.00 653.50 2254.98
2012 471.95 b 380.90 c 154.00 5.69 a 3.50 0.00 0.00 b 0.00 a 21.35 d 85.00 k 0.00 z 0.00 z 1037.39
Period of Record Statistics
MEAN 634.19 457.28 291.71 89.94 16.16 0.73 0.01 0.17 13.47 94.29 353.25 597.12 2502.67
S.D. 131.61 115.89 107.00 50.81 16.15 2.67 0.11 1.30 21.44 58.47 85.80 98.20 264.71
SKEW 0.79 0.57 0.73 0.59 1.08 6.11 9.33 8.53 3.03 1.09 0.45 0.28 0.17
MAX 1083.45 863.33 600.50 224.50 72.69 21.72 1.00 12.00 140.50 313.88 573.89 839.38 3239.70
MIN 331.00 211.56 110.50 5.69 0.00 0.00 0.00 0.00 0.00 5.74 189.00 404.00 1797.61
NO YRS 89 86 89 86 88 86 90 93 87 90 90 87 47