SALT FLAT, TEXAS

Monthly Total Heating Degree Days

(417920)

Base Temperature = 65 F

File last updated on Oct 29, 2012
*** Note *** Provisional Data *** After Year/Month 199808
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
1978 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 116.50 343.97 a 671.48 c 1131.95
1979 739.19 b 379.50 h 369.70 d 158.00 23.00 3.00 0.00 0.00 28.00 75.00 530.00 689.00 2614.89
1980 541.50 432.00 367.00 151.00 12.00 0.00 0.00 0.00 g 5.00 223.50 527.00 625.50 2884.50
1981 663.92 a 483.00 397.00 93.50 5.50 0.00 0.00 0.00 7.20 e 111.60 a 347.50 571.00 2680.22
1982 723.50 524.00 309.50 119.00 30.00 0.00 0.00 0.00 0.00 141.50 456.50 746.00 3050.00
1983 726.50 463.50 296.00 237.00 16.50 0.00 0.00 0.00 4.50 82.00 385.50 741.00 2952.50
1984 735.50 546.00 305.50 90.00 3.00 0.00 0.00 0.00 26.00 145.00 436.50 572.50 2860.00
1985 765.00 123.50 t 317.50 95.00 2.00 0.00 a 0.00 0.00 15.00 132.50 366.50 730.00 2423.50
1986 652.00 397.50 295.50 63.00 29.50 0.00 0.00 0.00 1.00 159.00 509.00 748.00 2854.50
1987 769.00 539.00 483.50 229.50 22.50 0.00 0.00 0.00 8.50 38.00 451.00 763.00 3304.00
1988 476.50 k 522.00 381.00 141.50 13.00 0.00 0.00 0.00 5.00 57.50 397.24 a 733.84 b 2251.09
1989 725.00 499.85 a 225.50 59.00 1.00 0.00 0.00 0.00 21.00 126.00 370.50 814.50 2842.35
1990 714.03 a 490.54 b 362.50 97.00 32.00 0.00 0.00 2.50 10.50 147.50 393.00 696.00 2945.57
1991 739.00 475.00 378.50 142.00 13.00 0.00 0.00 0.00 53.00 113.00 569.50 686.13 a 3169.13
1992 817.50 545.00 360.50 141.50 13.00 0.00 0.00 0.00 2.50 80.00 603.50 685.00 3248.50
1993 611.50 560.50 352.00 139.00 11.00 0.00 0.00 z 1.00 5.50 192.00 524.50 700.50 3097.50
1994 709.00 552.00 335.50 111.50 5.00 0.00 0.00 0.00 0.00 z 61.00 q 380.00 612.00 2705.00
1995 701.00 401.00 324.00 188.00 9.50 x 0.00 z 0.00 a 0.00 17.50 68.00 378.50 696.00 2774.00
1996 734.00 418.50 478.00 156.50 1.50 0.00 0.00 0.00 8.00 159.50 434.00 692.00 3082.00
1997 798.77 a 590.50 229.00 216.50 6.00 n 0.00 0.00 o 0.00 z 0.00 0.00 z 488.00 0.00 z 2322.77
1998 595.50 642.50 405.50 277.50 0.00 z 0.00 0.00 0.00 0.00 z 0.00 z 0.00 z 0.00 z 1921.00
Period of Record Statistics
MEAN 708.50 504.58 348.66 145.30 13.74 0.16 0.00 0.19 12.12 120.45 444.61 693.34 2998.98
S.D. 69.24 66.47 66.40 59.35 10.42 0.69 0.00 0.62 13.29 48.23 78.07 63.25 191.07
SKEW -0.82 0.05 0.17 0.60 0.44 4.01 0.00 3.19 1.76 0.24 0.47 -0.41 0.11
MAX 817.50 642.50 483.50 277.50 32.00 3.00 0.00 2.50 53.00 223.50 603.50 814.50 3304.00
MIN 541.50 397.50 225.50 59.00 1.00 0.00 0.00 0.00 0.00 38.00 343.97 571.00 2680.22
NO YRS 19 18 20 20 17 19 18 18 18 18 20 19 11