DELL CITY 5 SSW, TEXAS

Monthly Total Heating Degree Days

(412354)

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
1979 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 b 0.00 a 37.22 c 106.95 a 559.50 712.50 1416.17
1980 605.50 527.00 436.50 230.50 41.16 b 0.00 0.00 e 0.00 5.00 248.50 489.50 f 643.77 a 2737.92
1981 687.50 499.00 435.00 103.50 11.00 0.00 0.00 b 0.00 12.00 135.37 a 0.00 z 586.00 2469.37
1982 731.50 546.50 328.00 138.00 33.50 0.00 0.00 0.00 3.00 189.10 a 511.00 763.50 3244.10
1983 787.50 498.50 378.50 327.00 59.50 5.50 0.00 0.00 8.00 97.00 366.00 795.50 3323.00
1984 774.00 610.00 394.50 189.00 10.00 0.00 0.00 0.00 37.50 188.50 473.00 623.00 3299.50
1985 828.50 623.50 356.50 a 135.50 9.50 1.00 0.00 0.00 a 17.00 180.83 a 405.00 773.00 3330.33
1986 643.50 396.50 297.00 58.00 29.00 1.50 0.00 0.00 4.00 183.00 522.50 762.00 2897.00
1987 768.50 507.50 488.50 218.50 18.50 0.00 0.00 0.00 12.00 53.50 395.00 i 737.00 2804.00
1988 752.27 a 512.16 a 410.00 163.50 23.77 a 1.50 0.00 0.00 9.50 61.00 381.50 755.00 3070.19
1989 693.50 476.00 278.50 95.69 a 12.00 0.00 0.00 0.00 25.50 105.00 397.50 878.50 2962.19
1990 736.50 543.93 a 239.00 i 106.00 40.50 0.00 0.00 2.00 13.00 130.00 356.50 737.50 2665.93
1991 706.50 445.00 363.00 143.50 13.50 0.00 0.00 0.00 40.50 84.00 505.00 658.50 2959.50
1992 779.50 531.50 363.00 132.50 7.50 0.00 0.00 0.00 3.50 61.50 590.50 668.50 3138.00
1993 574.00 511.00 314.50 133.00 2.50 0.00 0.00 0.00 12.50 197.00 516.00 671.00 2931.50
1994 700.00 518.00 305.00 103.50 15.00 0.00 0.00 0.00 1.50 114.50 387.00 551.50 2696.00
1995 646.00 354.00 308.50 189.00 2.50 0.00 0.00 0.00 24.50 60.50 320.50 601.50 2507.00
1996 661.00 418.00 424.00 154.50 0.00 0.00 0.00 0.00 6.00 137.00 373.50 656.00 2830.00
1997 704.50 529.50 286.00 237.00 13.00 0.00 0.00 0.00 0.00 184.50 434.50 810.50 3199.50
1998 606.00 500.00 386.50 237.50 4.50 0.00 0.00 0.00 0.00 z 107.00 336.50 722.00 2900.00
1999 579.00 391.00 305.00 148.50 5.00 0.00 0.00 0.00 14.50 136.50 316.50 704.00 2600.00
2000 544.00 368.00 274.50 84.50 5.00 0.00 0.00 0.00 12.50 184.50 627.50 790.50 2891.00
2001 796.00 472.00 373.00 119.50 8.00 0.00 0.00 0.00 2.00 42.50 340.86 a 660.00 2813.86
2002 649.50 610.50 383.00 36.50 5.50 0.00 0.00 0.00 5.00 143.50 516.50 569.00 2919.00
2003 598.00 503.00 363.50 98.00 12.00 0.00 0.00 0.00 0.50 71.50 375.00 728.50 2750.00
2004 691.00 543.50 276.50 122.50 20.00 0.00 0.50 0.00 12.50 67.00 531.00 0.00 z 2264.50
2005 595.00 491.50 393.00 224.50 48.00 0.00 0.00 0.00 1.00 210.50 415.00 595.50 2974.00
2006 648.00 468.50 260.50 46.50 0.00 0.00 0.00 0.00 24.50 195.00 435.00 753.00 2831.00
2007 900.50 432.50 262.00 175.50 29.50 0.00 0.00 0.00 0.00 103.00 0.00 z 687.50 2590.50
2008 692.50 476.50 337.00 193.00 26.00 0.00 0.00 0.00 18.50 140.00 471.50 633.00 2988.00
2009 668.50 427.00 236.00 123.00 0.50 0.00 0.00 0.00 22.00 163.00 429.00 756.00 2825.00
2010 758.50 543.00 421.00 82.00 42.00 0.00 0.00 0.00 1.00 46.00 444.00 718.00 3055.50
2011 734.50 633.00 164.00 30.50 26.00 0.00 g 0.00 r 0.00 0.00 53.50 438.00 675.00 2754.50
2012 597.50 510.50 237.67 a 58.50 8.78 a 0.00 0.00 0.00 0.00 p 0.00 v 0.00 z 0.00 z 1412.95
Period of Record Statistics
MEAN 692.08 497.52 338.76 140.57 17.67 0.30 0.02 0.06 12.07 126.70 440.55 699.27 2959.80
S.D. 82.25 68.96 71.59 67.32 15.43 1.03 0.09 0.34 11.58 56.62 82.68 76.70 219.60
SKEW 0.31 -0.08 -0.18 0.56 0.98 4.31 5.48 5.57 1.02 0.18 0.42 0.02 0.02
MAX 900.50 633.00 488.50 327.00 59.50 5.50 0.50 2.00 40.50 248.50 627.50 878.50 3330.33
MIN 544.00 354.00 164.00 30.50 0.00 0.00 0.00 0.00 0.00 42.50 316.50 551.50 2507.00
NO YRS 33 33 32 33 33 32 33 34 32 33 29 32 24