BIG SPRING, TEXAS

Monthly Total Heating Degree Days

(410786)

Base Temperature = 65 F

File last updated on Oct 29, 2012
*** Note *** Provisional Data *** After Year/Month 201012
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
1948 811.50 571.00 460.41 d 39.00 13.00 0.00 0.00 0.00 12.00 98.00 437.50 490.50 2932.91
1949 936.50 456.50 280.00 187.50 1.50 0.00 0.00 0.00 10.00 153.00 229.00 547.00 2801.00
1950 505.50 336.00 295.50 128.00 20.00 2.50 0.00 0.00 0.00 3.50 339.00 615.00 2245.00
1951 688.50 432.50 334.00 145.50 16.00 6.50 0.00 0.00 6.50 77.50 432.50 524.00 2663.50
1952 425.50 410.50 345.00 95.50 31.50 0.00 1.00 0.00 16.00 96.00 433.50 603.00 2457.50
1953 401.50 488.00 175.00 101.50 63.00 0.00 a 0.00 0.00 0.00 81.50 285.50 g 687.50 1998.00
1954 575.00 301.50 347.50 72.00 56.32 a 0.00 0.00 0.00 0.00 98.17 a 308.00 522.35 a 2280.83
1955 657.20 a 520.50 288.50 85.50 7.00 8.00 0.00 0.00 0.00 73.00 354.00 542.00 2535.70
1956 630.00 563.95 a 283.65 a 159.81 d 0.00 0.00 a 0.00 0.00 0.00 45.50 419.50 497.50 2599.90
1957 580.14 c 324.07 a 299.00 189.00 29.00 8.50 0.00 0.00 b 1.07 b 178.50 550.34 a 470.50 2630.13
1958 703.00 598.89 a 571.43 a 138.33 c 36.50 0.00 z 0.00 0.00 b 2.50 150.00 341.50 663.50 3205.66
1959 742.81 e 546.00 316.09 c 203.04 b 6.00 n 0.00 i 0.00 0.00 i 0.00 128.50 536.50 524.00 2996.93
1960 661.33 d 604.36 d 515.00 65.00 c 40.00 0.00 i 0.00 e 0.00 1.00 65.50 309.50 754.00 3015.69
1961 750.00 499.00 214.50 l 137.00 14.50 0.00 0.00 b 0.00 14.00 68.50 478.50 639.00 2600.50
1962 840.10 a 315.84 c 463.21 e 125.00 5.34 b 0.00 j 0.00 0.00 8.79 a 82.50 291.50 605.00 2737.29
1963 826.50 524.46 b 260.29 b 55.86 a 17.16 c 0.00 g 0.00 a 0.00 0.00 y 0.00 z 0.00 z 0.00 z 1684.28
1964 0.00 z 0.00 z 0.00 z 0.00 z 1.50 g 2.50 0.00 0.00 8.50 53.50 280.00 523.00 867.50
1965 454.50 513.00 481.00 38.50 h 8.50 0.00 0.00 0.00 2.50 71.00 153.00 400.50 2084.00
1966 764.50 558.50 226.00 103.50 48.00 0.00 0.00 2.00 0.00 117.00 151.00 622.50 2593.00
1967 532.50 433.00 117.50 14.00 18.50 0.00 0.00 0.00 6.50 62.50 268.00 620.00 2072.50
1968 603.50 537.00 317.50 96.50 6.50 0.00 0.00 0.00 0.00 30.00 365.50 537.00 2493.50
1969 427.00 394.50 492.50 39.50 8.00 0.00 0.00 0.00 0.00 172.00 345.50 459.00 2338.00
1970 623.50 407.00 382.00 77.00 27.50 6.50 0.00 0.00 37.24 a 148.69 d 336.00 370.00 2415.43
1971 629.50 547.50 351.50 123.50 36.50 0.00 2.00 0.00 62.50 78.50 334.50 563.50 2729.50
1972 646.00 497.50 202.00 87.50 5.50 0.00 0.00 0.00 15.50 176.50 570.00 702.00 2902.50
1973 849.50 629.50 320.50 269.50 56.00 0.00 0.00 0.00 20.00 60.50 257.50 577.50 3040.50
1974 717.50 488.00 164.50 100.50 9.00 0.00 0.00 0.00 81.00 0.00 z 406.00 668.00 2634.50
1975 655.00 580.50 383.50 170.00 7.00 0.00 0.00 0.00 78.10 a 103.50 328.00 630.50 2936.10
1976 689.50 316.00 309.50 85.00 49.50 0.00 0.00 a 0.00 9.50 284.17 a 584.00 668.71 c 2995.88
1977 917.82 c 442.81 a 0.00 z 104.00 0.00 0.00 0.00 0.00 0.00 57.00 337.78 c 521.32 a 2380.73
1978 873.17 a 740.96 a 17.00 z 36.00 35.00 0.00 a 0.00 0.00 20.50 22.50 l 192.50 p 685.21 b 2390.84
1979 948.50 590.50 312.50 93.00 e 35.43 c 13.00 0.00 0.00 5.50 60.50 476.40 e 611.00 3146.33
1980 557.50 f 533.50 340.50 147.50 21.00 0.00 b 0.00 0.00 c 22.00 126.00 448.50 539.73 c 2178.73
1981 652.03 a 444.00 386.98 a 82.00 9.19 d 0.00 0.00 0.00 0.00 f 126.50 254.48 a 446.83 b 2402.01
1982 662.00 597.50 263.50 142.50 30.00 2.07 a 0.00 z 0.00 0.00 115.00 375.50 672.18 a 2860.25
1983 515.00 l 505.50 335.00 230.50 13.50 15.00 0.00 0.00 z 16.50 56.50 282.00 940.00 2394.50
1984 0.00 z 0.00 z 349.50 115.00 13.00 0.00 0.00 0.00 g 31.50 150.50 383.50 526.50 1569.50
1985 822.00 625.50 262.50 67.50 2.00 0.00 0.00 0.00 25.50 96.50 296.00 720.00 2917.50
1986 0.00 z 171.50 j 187.50 39.50 12.00 0.00 0.00 0.00 4.50 121.23 c 394.29 b 659.00 1418.02
1987 687.00 465.50 453.24 b 197.00 6.00 0.00 0.00 0.00 a 4.00 43.00 377.00 639.78 b 2872.52
1988 770.50 563.00 327.16 c 102.50 15.50 0.00 0.00 0.00 7.00 53.50 276.00 627.50 2742.66
1989 564.50 632.00 333.50 121.50 5.00 0.00 0.00 0.00 k 39.50 94.50 311.50 850.50 2952.50
1990 546.50 377.50 348.00 133.00 77.00 0.00 0.00 0.00 6.50 105.50 283.00 693.00 2570.00
1991 777.00 393.50 238.00 52.00 9.00 0.00 0.00 0.00 46.50 92.50 514.00 608.50 2731.00
1992 701.50 396.50 224.00 96.50 42.50 0.50 0.00 0.00 0.50 40.50 0.00 z 585.50 2088.00
1993 711.50 521.00 365.50 124.00 12.50 0.00 0.00 0.00 17.00 167.50 483.00 562.00 2964.00
1994 631.00 540.00 292.00 129.00 40.50 0.00 0.00 0.00 12.00 84.00 317.50 524.00 2570.00
1995 599.50 386.50 393.00 142.50 18.00 2.00 0.00 0.00 32.50 62.50 306.00 593.00 2535.50
1996 651.00 456.00 467.00 0.00 z 0.00 0.00 0.00 0.00 0.00 z 91.50 370.00 530.00 2565.50
1997 706.00 552.50 237.50 256.00 29.00 0.50 0.00 0.00 4.00 112.00 433.00 693.50 3024.00
1998 492.00 436.50 399.50 129.50 0.00 0.00 0.00 0.00 0.00 54.50 253.00 620.00 2385.00
1999 532.00 295.00 316.00 94.00 14.50 0.00 0.00 a 0.00 b 25.86 a 87.00 187.24 a 575.50 2127.10
2000 516.00 287.50 212.50 94.66 a 3.00 0.00 0.00 z 0.00 b 19.00 119.50 532.76 a 750.95 b 2535.86
2001 729.50 447.50 414.00 51.00 4.00 0.00 0.00 a 0.00 7.00 48.50 0.00 z 558.52 a 2260.02
2002 568.50 544.50 402.50 99.50 10.00 0.00 0.00 0.00 z 2.50 159.00 0.00 z 610.50 2397.00
2003 621.50 515.50 266.50 55.00 16.50 0.00 0.00 0.00 0.00 z 0.00 z 320.50 522.50 2318.00
2004 557.00 554.00 227.00 107.00 20.00 0.00 1.00 0.00 0.50 35.00 393.50 615.50 2510.50
2005 520.00 488.00 330.00 102.50 71.00 0.00 0.00 0.00 3.00 97.00 292.50 620.50 2524.50
2006 423.50 470.00 257.50 37.00 9.00 0.00 z 0.00 f 0.00 z 0.00 z 0.00 z 258.50 616.00 2071.50
2007 820.00 505.00 195.30 a 190.50 0.00 z 0.00 0.00 0.00 0.00 58.00 335.50 579.00 2683.30
2008 644.00 408.00 302.50 101.00 16.00 0.00 0.00 0.00 4.00 92.00 318.00 587.00 2472.50
2009 631.50 0.00 z 251.00 115.00 20.00 0.00 0.00 0.00 12.50 161.00 257.00 765.50 2213.50
2010 683.50 644.00 365.50 110.00 40.00 0.00 0.00 0.00 1.00 41.50 311.50 521.50 2718.50
2011 676.50 461.46 b 187.50 26.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1351.46
Period of Record Statistics
MEAN 660.42 486.94 320.45 111.77 21.36 1.19 0.07 0.04 13.17 95.99 354.72 599.99 2642.14
S.D. 130.10 97.98 93.51 54.23 18.63 3.15 0.31 0.26 18.27 48.50 99.33 98.55 268.65
SKEW 0.14 -0.13 0.35 0.75 1.13 3.01 4.99 7.35 2.16 1.11 0.42 0.65 -0.12
MAX 948.50 740.96 571.43 269.50 77.00 15.00 2.00 2.00 81.00 284.17 584.00 940.00 3146.33
MIN 401.50 287.50 117.50 14.00 0.00 0.00 0.00 0.00 0.00 3.50 151.00 370.00 2072.50
NO YRS 59 60 60 61 60 57 60 57 58 58 57 62 35