BIG LAKE 2, TEXAS

Monthly Total Heating Degree Days

(410779)

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
1963 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 n 1.50 6.20 a 284.50 805.00 1097.20
1964 686.50 659.00 305.50 64.44 c 0.00 a 2.00 0.00 a 0.00 19.50 117.80 a 312.41 a 606.50 2773.66
1965 536.50 637.50 524.50 60.50 7.00 0.00 0.00 0.00 8.50 124.00 179.50 490.50 2568.50
1966 807.50 656.00 273.50 119.50 56.50 0.00 0.00 3.50 2.50 173.50 226.50 671.00 2990.00
1967 647.50 513.50 162.23 a 22.50 26.00 0.00 0.00 0.00 32.00 133.82 a 349.00 737.00 2623.55
1968 649.00 592.00 414.00 132.50 8.00 0.00 0.00 a 0.00 12.50 83.50 425.69 a 668.00 2985.19
1969 559.50 480.50 521.32 a 49.00 26.00 0.00 z 0.00 z 0.00 a 0.00 172.05 a 416.38 a 528.00 2752.75
1970 741.00 487.50 492.00 120.50 55.00 13.00 0.00 0.00 53.00 204.50 435.50 446.00 3048.00
1971 538.00 469.00 287.00 124.50 26.00 0.00 0.00 2.50 66.50 107.00 352.50 535.55 b 2508.55
1972 575.50 464.00 172.00 39.50 12.00 2.00 0.00 0.00 6.50 124.50 523.00 681.00 2600.00
1973 776.55 a 576.59 a 268.50 216.00 39.00 0.00 0.00 0.00 16.03 a 66.50 214.50 588.48 a 2762.16
1974 655.50 477.00 113.00 80.50 9.50 0.00 0.00 0.00 87.00 107.39 c 403.50 677.19 b 2610.58
1975 645.50 536.00 353.00 162.50 10.50 0.00 0.00 0.00 64.50 128.50 371.50 650.50 2922.50
1976 727.50 313.82 a 274.50 68.50 46.00 0.00 0.00 0.00 13.50 275.50 576.96 b 541.00 g 2296.29
1977 829.00 458.00 308.50 100.50 0.00 0.00 0.00 0.00 0.00 76.98 a 313.00 494.00 2579.98
1978 826.50 675.00 319.50 33.00 26.50 1.50 0.00 0.50 23.50 110.50 150.00 k 677.35 a 2693.85
1979 913.47 a 583.50 316.72 a 85.00 41.50 6.00 0.00 0.00 7.00 72.50 477.00 605.03 b 3107.72
1980 633.50 550.00 358.50 151.50 24.50 0.00 0.00 0.00 8.50 159.00 462.50 587.40 b 2935.40
1981 649.97 a 381.00 g 232.00 j 73.93 b 20.84 b 0.00 0.00 0.00 4.00 140.69 e 254.48 a 536.00 1679.92
1982 656.50 599.50 225.00 102.93 a 31.00 0.00 0.00 0.00 0.00 116.00 378.00 638.50 2747.43
1983 692.50 475.00 300.00 175.00 1.55 a 19.00 0.00 0.00 11.00 74.50 321.00 888.00 2957.55
1984 832.00 487.50 295.50 95.50 4.00 0.00 0.00 0.00 36.21 a 135.00 387.50 0.00 z 2273.21
1985 0.00 z 201.50 m 259.00 74.50 4.00 6.50 0.00 0.00 19.00 83.00 243.50 725.50 1415.00
1986 607.50 381.50 211.00 21.00 15.00 0.00 0.00 0.00 0.00 146.00 403.50 672.50 2458.00
1987 674.50 483.00 476.00 221.00 15.50 2.00 0.00 0.00 3.10 a 48.50 406.00 627.50 2957.10
1988 785.00 550.50 332.45 b 88.00 23.00 0.00 0.00 0.00 1.50 50.00 280.71 b 621.00 2732.16
1989 563.50 612.37 a 318.00 107.00 1.00 0.00 0.00 0.50 49.50 96.00 308.00 817.50 2873.37
1990 561.00 385.00 349.50 111.00 63.00 0.00 0.00 0.00 8.00 152.50 302.00 663.00 2595.00
1991 742.00 439.50 250.00 50.00 8.00 0.00 0.00 0.00 57.00 75.50 487.50 591.50 2701.00
1992 692.00 409.00 228.50 111.50 21.50 0.00 0.00 0.00 1.00 28.00 452.00 586.50 2530.00
1993 679.50 470.00 312.00 113.50 10.50 0.00 0.00 0.00 18.00 164.00 454.66 a 518.50 2740.66
1994 623.00 498.50 244.50 117.50 28.50 0.00 0.00 0.00 14.50 110.50 287.50 484.00 2408.50
1995 579.50 336.00 351.00 119.00 4.50 2.50 0.00 0.00 47.00 128.50 437.50 721.50 2727.00
1996 778.50 544.50 556.00 215.00 1.50 0.00 0.00 0.00 42.00 150.00 344.00 544.50 3176.00
1997 704.50 550.50 238.00 237.00 27.50 0.00 0.00 0.00 0.00 116.50 382.00 676.00 2932.00
1998 486.50 407.50 349.50 78.50 0.00 0.00 0.00 0.00 0.00 57.50 235.50 588.47 b 2203.47
1999 462.42 a 287.00 236.50 85.00 5.50 0.00 a 0.00 d 0.00 a 7.00 56.00 k 117.50 j 424.00 h 1083.42
2000 271.50 l 181.50 g 77.00 h 40.00 n 0.00 i 0.00 h 0.00 g 0.00 e 11.00 f 72.50 h 291.50 m 0.00 z 0.00
2001 0.00 z 353.00 k 144.00 r 48.00 l 4.00 i 0.00 p 0.00 j 0.00 j 5.50 t 33.50 i 200.00 i 281.50 n 0.00
2002 365.00 i 0.00 z 0.00 z 56.00 0.00 j 0.00 z 0.00 z 0.00 m 2.50 k 0.00 z 220.50 p 0.00 z 56.00
2003 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
2004 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
2005 0.00 z 0.00 z 325.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 118.00 261.43 b 598.76 d 1303.69
2006 446.50 329.50 i 200.00 26.00 9.00 0.00 0.00 0.00 z 4.00 0.00 z 200.50 f 646.02 c 1331.52
2007 850.43 a 0.00 z 167.50 j 0.00 z 0.00 z 0.00 z 0.00 l 0.00 h 0.00 i 39.50 u 191.50 l 0.00 z 850.43
2008 475.50 i 0.00 z 155.50 o 57.50 h 4.00 j 0.00 k 0.00 t 0.00 l 4.50 q 83.00 l 344.50 0.00 z 344.50
2009 615.50 0.00 z 161.00 p 44.00 q 3.50 s 0.00 z 0.00 0.00 8.50 160.00 221.00 i 705.00 1489.00
2010 498.50 f 605.50 334.50 122.50 19.50 0.00 0.00 0.00 3.00 16.50 315.50 530.50 1947.50
2011 654.00 487.50 152.00 29.50 37.00 0.00 h 0.00 0.00 0.00 87.50 322.00 674.50 2444.00
2012 558.50 470.00 195.00 23.00 23.00 0.00 0.00 0.00 20.50 76.00 h 0.00 z 0.00 z 1290.00
Period of Record Statistics
MEAN 666.10 502.94 305.09 99.62 19.72 1.43 0.00 0.17 18.51 112.46 357.25 628.30 2750.17
S.D. 110.77 95.40 102.80 56.30 16.65 3.86 0.00 0.67 22.10 51.96 90.75 95.50 228.72
SKEW 0.14 -0.22 0.68 0.74 0.86 3.39 0.00 4.21 1.40 0.44 0.22 0.44 -0.19
MAX 913.47 675.00 556.00 237.00 63.00 19.00 0.00 3.50 87.00 275.50 576.96 888.00 3176.00
MIN 446.50 287.00 113.00 21.00 0.00 0.00 0.00 0.00 0.00 6.20 179.50 446.00 2203.47
NO YRS 40 37 40 41 40 38 40 41 42 40 39 39 29