RED ROCK, TEXAS

Monthly Total Heating Degree Days

(417497)

Base Temperature = 65 F

File last updated on Oct 29, 2012
*** Note *** Provisional Data *** After Year/Month 200012
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
1965 0.00 z 0.00 z 0.00 z 0.00 z 0.00 q 0.00 0.00 0.00 4.50 100.00 89.50 361.50 555.50
1966 668.00 486.00 222.00 42.00 14.00 0.00 0.00 0.00 0.00 71.00 115.00 469.50 2087.50
1967 473.00 417.50 113.00 4.00 6.00 0.00 0.00 0.00 12.50 43.00 193.50 468.00 1730.50
1968 564.00 500.00 276.00 54.50 3.50 0.00 0.00 0.00 a 0.00 17.50 0.00 z 392.50 1808.00
1969 421.00 348.00 375.00 30.00 8.50 1.00 0.00 0.00 0.00 71.00 280.50 313.00 1848.00
1970 655.00 354.50 321.00 68.00 37.50 0.00 0.00 0.00 10.00 88.00 284.00 232.00 2050.00
1971 339.50 300.50 195.50 81.00 20.50 0.00 0.00 0.00 4.50 16.50 197.07 a 280.00 1435.07
1972 466.00 344.50 87.50 13.00 0.50 0.00 0.00 0.00 0.00 53.50 385.00 590.50 1940.50
1973 624.00 427.00 79.00 146.50 15.50 0.00 0.00 0.00 0.00 18.60 a 96.00 381.00 1787.60
1974 530.50 279.00 103.50 60.00 0.00 0.00 0.00 0.00 14.50 29.00 265.00 483.50 1765.00
1975 376.50 361.00 170.50 f 54.00 0.00 0.00 0.00 0.00 5.00 55.00 217.50 441.50 1510.50
1976 484.00 184.50 187.50 25.50 17.00 0.00 0.00 0.00 0.00 169.00 406.00 504.30 c 1977.80
1977 701.12 a 327.19 a 144.00 42.00 2.00 0.00 a 0.00 0.00 0.00 26.50 150.50 382.16 b 1775.46
1978 718.00 589.50 251.62 a 35.00 2.50 0.00 0.00 0.00 0.00 23.00 175.00 480.00 2274.62
1979 0.00 z 0.00 z 119.98 d 33.50 7.00 f 0.00 0.00 0.00 0.00 29.50 313.50 442.50 938.98
1980 438.50 423.00 237.00 91.50 1.00 0.00 0.00 0.00 0.00 58.68 c 289.50 398.50 1937.68
1981 493.00 314.46 b 194.50 13.50 5.50 0.00 0.00 0.00 10.00 101.27 a 157.00 457.25 a 1746.48
1982 589.50 527.50 177.70 c 137.50 24.00 0.00 0.00 0.00 0.00 88.00 220.00 c 456.70 c 2220.89
1983 631.00 460.50 292.00 147.00 10.00 0.00 0.00 0.00 12.00 41.00 156.00 723.00 2472.50
1984 647.00 345.50 157.50 33.50 3.00 0.00 0.00 0.00 16.50 56.00 261.50 236.50 1757.00
1985 735.00 499.00 134.00 39.50 0.00 0.00 0.00 0.00 0.54 b 41.85 a 183.00 622.50 2255.39
1986 450.00 313.04 c 127.50 7.00 f 6.50 0.00 0.00 0.00 0.00 80.50 283.50 542.00 1803.04
1987 570.50 364.50 327.50 136.50 0.00 0.00 0.00 0.00 1.00 53.50 258.00 466.00 2177.50
1988 688.00 471.00 244.26 b 95.50 5.00 0.00 0.00 0.00 0.00 29.00 180.00 429.50 2142.26
1989 402.50 501.00 275.00 100.86 a 1.00 0.00 0.00 0.00 25.00 71.50 226.00 777.00 2379.86
1990 392.00 255.50 230.00 86.50 10.50 0.00 0.00 0.00 0.50 141.00 190.00 515.00 1821.00
1991 645.00 362.00 207.50 35.50 11.50 0.00 0.00 0.00 14.50 45.00 380.50 445.50 2147.00
1992 561.00 321.50 170.00 80.00 27.00 0.00 0.00 0.00 8.50 38.50 367.50 450.00 2024.00
1993 596.50 427.00 271.00 116.00 14.00 0.00 0.00 0.00 3.50 134.50 416.50 415.00 2394.00
1994 530.00 419.00 219.50 88.00 29.00 0.00 0.00 0.00 12.00 58.50 132.00 398.00 1886.00
1995 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
1996 0.00 z 0.00 z 0.00 z 72.50 0.00 0.00 0.00 0.00 10.50 30.50 191.50 355.00 660.00
1997 505.50 353.50 110.50 117.50 4.50 0.00 0.00 0.00 0.00 65.50 320.50 489.50 1967.00
1998 267.00 315.00 242.00 79.00 0.00 0.00 0.00 0.00 0.00 27.00 123.50 422.50 1476.00
1999 284.50 177.50 34.00 x 24.50 j 0.00 e 0.00 e 0.00 a 0.00 7.00 68.00 123.10 a 410.23 a 1070.34
2000 314.13 a 188.00 110.50 62.00 0.00 0.00 t 0.00 r 0.00 b 14.50 80.08 a 323.79 a 336.50 m 1093.01
Period of Record Statistics
MEAN 523.79 373.68 200.11 69.42 8.48 0.03 0.00 0.00 5.34 60.60 233.87 447.99 1980.61
S.D. 131.00 100.94 77.19 40.45 9.87 0.17 0.00 0.00 6.61 36.24 92.70 114.27 263.39
SKEW -0.25 -0.04 0.29 0.40 1.29 5.57 0.00 0.00 1.04 1.17 0.36 0.76 -0.07
MAX 735.00 589.50 375.00 147.00 37.50 1.00 0.00 0.00 25.00 169.00 416.50 777.00 2472.50
MIN 267.00 177.50 79.00 4.00 0.00 0.00 0.00 0.00 0.00 16.50 89.50 232.00 1435.07
NO YRS 32 32 31 32 33 34 34 35 35 35 34 34 27