MONAHANS, TEXAS

Monthly Total Heating Degree Days

(415999)

Base Temperature = 65 F

File last updated on Oct 29, 2012
*** Note *** Provisional Data *** After Year/Month 200901
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
1959 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 p 0.00 0.00 e 0.00 a 59.50 467.50 528.50 1055.50
1960 613.50 554.00 341.00 57.50 20.50 0.00 0.00 0.00 0.00 44.00 274.50 711.50 2616.50
1961 728.50 412.50 237.00 112.00 1.00 1.03 a 0.00 0.00 2.50 59.50 464.00 579.50 2597.53
1962 739.50 263.00 338.50 60.50 5.00 0.00 0.00 0.00 0.50 71.00 287.50 558.50 2324.00
1963 709.00 403.00 199.50 33.50 4.00 0.00 0.00 0.00 3.00 9.00 299.50 716.50 2377.00
1964 654.50 593.50 249.50 55.00 2.50 3.00 0.00 0.00 8.00 62.50 306.00 513.50 2448.00
1965 473.50 491.00 404.50 26.50 3.50 0.00 0.00 0.00 1.00 85.50 178.50 420.50 2084.50
1966 740.50 537.00 196.50 59.00 28.00 0.00 0.00 0.00 0.00 145.00 189.00 632.50 2527.50
1967 581.00 397.00 125.00 9.00 20.50 0.00 0.00 0.00 4.00 76.50 265.50 646.00 2124.50
1968 585.00 473.50 285.00 89.00 1.00 0.00 0.00 0.00 2.50 64.00 390.00 565.50 2455.50
1969 421.50 379.00 439.50 43.00 7.00 0.00 0.00 0.00 0.00 148.50 365.00 495.50 2299.00
1970 608.50 403.50 0.00 z 0.00 z 41.00 4.00 0.00 o 0.00 78.10 a 265.00 416.79 b 516.00 2332.89
1971 445.33 e 372.50 208.50 64.00 5.00 0.00 0.00 0.00 23.79 a 23.00 270.00 438.00 1850.12
1972 545.50 362.00 76.00 32.50 0.00 0.00 0.00 0.00 2.59 a 120.50 461.25 b 0.00 z 1600.34
1973 300.50 p 552.72 c 238.00 171.21 a 0.00 z 0.00 z 0.00 z 0.00 z 0.50 x 28.50 231.50 0.00 z 1221.93
1974 568.50 434.00 75.00 65.50 5.00 0.00 z 0.00 0.00 63.00 66.00 338.00 633.95 a 2248.95
1975 585.00 440.22 a 300.50 122.50 1.50 0.00 0.00 0.00 45.00 a 26.00 g 273.46 d 549.50 2317.68
1976 424.50 k 323.46 c 203.71 c 40.50 21.50 i 0.00 a 0.00 0.00 9.50 228.50 582.00 699.50 2087.18
1977 819.00 435.50 285.00 59.50 0.00 0.00 0.00 0.00 0.00 48.00 266.50 477.00 2390.50
1978 746.00 569.00 209.00 25.50 22.00 0.00 0.00 a 0.00 23.89 c 77.50 e 289.29 b 0.00 z 1962.17
1979 443.00 j 477.12 c 221.50 56.00 14.35 d 0.00 z 0.00 a 0.00 8.00 45.00 410.50 618.50 1850.97
1980 579.50 487.50 275.00 124.00 12.00 0.00 0.00 1.00 8.50 146.00 434.50 513.50 2581.50
1981 613.00 396.50 323.95 a 48.50 g 3.50 0.00 0.00 0.00 0.50 91.34 c 175.86 a 376.50 f 1604.65
1982 633.50 504.50 186.50 92.00 16.00 i 0.00 c 0.00 k 0.00 0.00 47.00 387.50 663.00 2514.00
1983 664.50 456.50 0.00 z 84.00 q 5.00 j 11.00 q 0.00 q 0.00 3.89 c 30.00 j 144.50 o 218.00 s 1124.89
1984 0.00 z 0.00 z 0.00 z 91.50 5.50 0.00 0.00 0.00 45.50 119.00 376.50 531.50 1169.50
1985 785.00 590.00 234.00 60.00 2.00 2.50 0.00 0.00 17.00 90.50 273.50 704.50 2759.00
1986 596.00 397.50 191.50 22.50 11.00 0.00 0.00 0.00 0.00 100.00 389.00 601.00 2308.50
1987 666.50 435.00 386.50 165.50 7.50 0.00 0.00 0.00 3.50 13.50 372.50 630.50 2681.00
1988 753.50 459.00 252.65 a 70.00 5.50 0.00 0.00 0.00 8.50 20.50 272.00 605.00 2446.65
1989 572.50 482.00 238.50 67.50 0.00 0.00 0.00 1.00 23.50 78.50 305.00 788.00 2556.50
1990 595.00 370.50 297.50 71.50 42.50 0.00 0.00 0.00 1.50 96.00 268.50 635.50 2378.50
1991 708.00 345.50 223.50 49.50 1.50 0.00 0.00 0.00 43.50 55.00 440.50 555.00 2422.00
1992 681.00 378.00 178.00 101.00 17.50 0.00 0.00 0.00 0.00 31.00 441.00 546.00 2373.50
1993 614.00 438.50 276.50 100.00 8.00 0.00 0.00 0.00 7.00 152.00 430.50 514.00 2540.50
1994 595.00 439.00 222.00 88.50 11.50 0.00 a 0.00 0.00 7.50 73.50 276.50 497.50 2211.00
1995 611.50 329.00 310.00 119.50 0.00 0.00 0.00 0.00 20.00 41.50 293.50 587.00 2312.00
1996 652.00 406.50 395.00 120.00 0.00 0.00 0.00 0.00 20.50 102.50 311.00 552.00 2559.50
1997 703.50 508.50 217.50 202.50 19.50 0.00 0.00 0.00 0.50 117.50 415.00 721.00 2905.50
1998 511.50 425.50 342.00 114.00 0.00 0.00 0.00 0.00 0.00 42.50 237.50 607.00 2280.00
1999 493.00 275.50 206.00 74.50 8.50 0.00 0.00 0.00 13.50 84.50 224.00 612.50 1992.00
2000 528.00 293.50 287.00 93.50 4.00 0.00 l 0.00 0.00 8.50 0.00 z 0.00 z 0.00 z 1214.50
2001 0.00 z 0.00 z 0.00 z 15.50 3.50 0.00 a 0.00 0.00 0.00 31.50 283.50 0.00 z 334.00
2002 601.50 525.50 392.50 37.00 6.00 0.00 0.00 0.00 1.00 104.50 419.00 605.50 2692.50
2003 569.50 478.50 224.00 53.00 7.50 0.00 0.00 0.00 e 0.00 z 49.50 285.50 502.00 f 1667.50
2004 533.00 552.00 161.00 115.50 8.50 0.00 0.00 0.00 1.00 29.50 428.00 504.00 g 1828.50
2005 505.30 a 464.50 367.00 109.00 36.00 0.00 0.00 0.00 0.00 94.50 332.50 528.50 h 1908.80
2006 65.50 z 442.00 188.00 17.50 0.60 e 0.00 0.00 0.00 z 5.50 0.00 z 313.50 0.00 z 967.10
2007 524.50 f 0.00 z 216.00 163.50 26.50 0.00 z 0.00 0.00 2.00 k 58.00 332.00 0.00 z 796.00
2008 640.50 157.00 o 274.00 106.50 9.50 0.00 0.00 0.00 0.00 j 95.00 372.50 448.00 h 1498.00
2009 151.00 x 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
Period of Record Statistics
MEAN 618.35 438.99 255.54 78.85 9.78 0.24 0.00 0.04 11.22 80.26 335.77 588.39 2417.06
S.D. 91.58 80.69 82.01 44.26 10.98 0.84 0.00 0.20 17.57 51.49 87.13 83.41 230.03
SKEW 0.07 -0.09 0.16 0.69 1.54 3.45 0.00 4.59 2.20 1.50 0.36 0.24 -0.34
MAX 819.00 593.50 439.50 202.50 42.50 4.00 0.00 1.00 78.10 265.00 582.00 788.00 2905.50
MIN 421.50 263.00 75.00 9.00 0.00 0.00 0.00 0.00 0.00 9.00 175.86 420.50 1850.12
NO YRS 42 45 45 46 45 43 46 48 46 46 48 37 29