CHISOS BASIN, TEXAS

Monthly Total Cooling Degree Days

(411715)

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
1943 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
1944 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
1945 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
1946 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
1947 0.00 z 0.00 11.00 93.50 189.50 353.50 186.00 m 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 647.50
1948 0.00 3.11 a 21.91 b 141.50 221.50 354.50 298.00 334.50 151.00 39.02 b 0.00 e 4.50 1569.54
1949 0.00 0.00 e 12.00 31.00 245.50 324.00 298.00 211.00 113.50 39.02 b 2.50 0.00 1276.52
1950 2.00 0.00 24.00 80.00 229.50 276.00 254.00 231.00 172.00 74.00 4.66 a 0.00 a 1347.16
1951 0.00 2.00 19.00 63.00 224.00 380.50 356.00 360.50 219.50 95.00 0.50 g 5.50 1725.00
1952 1.07 b 0.00 1.50 11.67 c 144.00 296.50 233.00 376.13 a 169.00 8.00 4.00 0.00 1244.87
1953 0.00 o 0.00 c 10.69 b 37.00 198.50 388.00 331.50 226.30 a 130.00 26.50 f 0.00 f 0.00 1321.99
1954 0.50 1.00 46.00 100.34 a 175.15 a 324.00 317.00 264.50 209.50 62.00 a 0.00 k 0.00 1499.99
1955 0.00 0.00 g 22.22 a 122.50 226.00 330.00 290.50 257.50 180.00 54.50 4.00 0.00 1487.22
1956 0.00 4.50 10.50 88.00 281.00 342.00 323.50 283.00 131.90 a 70.50 2.00 0.00 1536.90
1957 0.50 21.00 1.50 64.50 117.50 318.50 355.00 174.00 p 153.60 e 21.00 g 4.00 0.00 1036.10
1958 0.00 0.00 0.00 71.50 152.33 b 371.00 413.00 317.50 156.50 15.50 b 0.00 0.00 1497.33
1959 0.00 a 0.50 0.50 89.50 224.00 282.50 232.00 283.02 d 235.20 e 52.59 c 7.00 0.00 c 1406.81
1960 0.00 a 0.00 17.64 b 74.50 233.00 363.50 271.50 232.50 134.50 83.50 5.50 0.00 1416.14
1961 0.00 0.00 2.00 107.00 242.12 b 236.50 233.50 206.00 189.00 74.83 b 5.50 0.00 1296.45
1962 0.00 a 11.50 7.00 95.17 a 306.38 a 305.69 a 319.00 354.43 a 210.00 103.85 a 0.00 0.00 b 1713.03
1963 0.00 a 0.00 30.50 134.50 221.00 361.00 360.78 b 278.00 125.00 12.00 4.14 a 0.00 1526.91
1964 0.00 a 1.00 7.75 a 99.31 a 251.00 279.00 323.00 337.00 167.50 19.00 8.00 0.00 1492.56
1965 0.00 0.00 12.50 122.50 183.93 a 329.50 326.00 230.00 182.50 63.00 14.50 0.00 1464.43
1966 0.00 0.00 19.00 67.76 a 193.00 256.50 343.50 249.50 121.00 33.67 b 0.00 0.00 1283.93
1967 0.00 1.50 47.00 152.50 185.00 316.50 265.50 183.00 46.00 24.50 0.50 0.00 1222.00
1968 0.00 0.00 2.50 21.00 188.50 265.00 218.50 233.50 54.50 47.00 2.00 0.00 a 1032.50
1969 0.00 0.00 0.50 65.50 117.00 351.00 363.50 354.50 144.00 68.00 6.00 0.00 1470.00
1970 0.00 0.00 0.00 118.00 129.00 238.00 268.50 266.50 167.50 6.50 2.50 2.00 1198.50
1971 0.00 0.00 20.00 47.50 196.00 249.00 267.00 113.50 137.00 22.00 1.00 0.00 1053.00
1972 0.00 4.00 9.50 114.00 147.50 297.50 275.50 215.50 183.50 76.00 0.00 0.00 1323.00
1973 0.00 d 0.00 a 1.00 33.00 179.50 237.00 245.50 181.00 145.50 70.50 25.00 0.00 1118.00
1974 0.00 c 0.00 28.00 75.50 267.00 311.50 286.50 215.50 84.50 8.00 1.50 0.00 b 1278.00
1975 1.00 0.00 3.50 86.00 167.00 355.00 171.50 181.00 98.00 59.50 6.21 a 0.00 1128.71
1976 0.00 2.00 10.00 50.50 101.00 266.00 147.00 192.00 64.00 4.50 0.00 0.00 a 837.00
1977 0.00 0.00 5.68 a 13.50 230.00 252.00 278.00 370.00 303.00 75.95 a 5.50 0.00 1533.63
1978 0.00 0.00 3.00 113.50 219.50 307.00 326.00 201.00 89.00 20.00 3.00 0.00 1282.00
1979 0.00 0.00 1.50 50.50 107.00 212.00 336.50 202.50 109.50 122.50 0.00 0.00 1142.00
1980 0.00 0.00 2.50 26.00 190.43 c 428.00 425.00 252.50 163.00 8.50 0.00 1.00 1496.93
1981 0.00 0.00 3.00 41.50 136.00 242.00 289.50 197.50 115.50 37.95 b 2.59 a 0.00 1065.53
1982 0.00 0.50 19.00 71.50 107.50 290.00 288.00 302.00 197.00 56.50 2.50 0.00 1334.50
1983 0.00 0.00 0.00 23.50 138.50 310.00 336.50 270.00 210.00 62.50 0.00 0.00 c 1351.00
1984 0.00 0.00 0.00 z 59.00 191.50 227.50 242.00 270.00 133.50 10.50 6.00 1.00 1141.00
1985 0.00 0.00 19.50 51.00 190.50 0.00 z 240.50 299.50 125.00 26.50 14.50 0.00 967.00
1986 0.00 2.50 1.00 102.50 165.50 157.50 266.50 238.00 138.00 38.00 0.00 0.00 1109.50
1987 0.00 0.00 0.00 37.24 a 57.50 209.50 271.00 247.50 104.48 a 25.00 4.00 0.00 e 956.22
1988 0.00 0.00 11.00 30.00 129.00 176.50 211.50 216.50 139.50 32.50 13.97 a 0.00 960.47
1989 0.00 c 0.00 c 18.50 112.24 a 270.50 325.00 323.00 251.00 135.00 77.50 b 1.50 0.00 b 1514.24
1990 0.00 a 0.00 27.90 a 49.66 a 244.79 b 406.00 211.46 c 154.48 a 70.50 5.88 b 11.00 0.00 1181.68
1991 0.00 0.00 11.00 45.50 218.00 297.00 175.50 177.50 54.00 12.50 0.00 a 0.00 991.00
1992 0.00 0.00 0.00 25.50 32.50 305.00 306.00 183.50 154.00 34.50 0.50 0.00 1041.50
1993 0.00 0.00 4.00 43.00 108.00 267.00 286.00 302.00 98.50 49.50 0.00 a 0.00 1158.00
1994 0.00 5.00 12.00 33.00 161.00 322.50 350.00 278.50 147.00 14.50 i 15.00 0.00 1324.00
1995 0.00 2.00 18.00 39.00 233.50 252.50 317.50 201.00 i 177.00 41.00 2.50 0.00 o 1083.00
1996 0.00 4.50 0.00 63.50 370.50 292.50 310.50 202.50 121.50 18.00 16.50 0.00 1400.00
1997 0.00 0.00 0.00 14.00 128.50 257.00 282.50 276.50 187.24 a 54.00 0.50 0.00 1200.24
1998 0.00 0.00 23.00 22.00 322.00 425.50 328.50 200.00 159.50 80.50 0.50 0.00 1561.50
1999 0.00 1.50 1.50 117.00 206.50 255.50 232.50 291.50 156.50 28.93 a 0.00 0.00 1291.43
2000 0.00 4.50 11.50 105.50 309.00 202.50 365.00 271.50 235.50 44.50 0.00 0.00 1549.50
2001 0.00 0.00 1.03 a 101.38 a 192.00 338.00 364.50 266.71 b 165.00 46.50 1.07 b 0.00 b 1476.19
2002 1.50 0.00 6.50 118.50 254.50 309.50 216.00 269.00 99.50 47.00 2.00 0.00 1324.00
2003 0.00 0.00 0.00 54.00 248.00 261.00 172.50 0.00 z 0.00 z 15.50 13.50 0.00 764.50
2004 0.00 0.00 10.50 34.50 193.50 257.00 239.50 162.00 82.00 34.00 0.00 0.00 1013.00
2005 0.00 0.00 0.00 31.00 g 159.50 316.50 317.50 219.00 219.00 47.50 2.00 0.00 1281.00
2006 0.00 0.00 18.00 127.00 272.00 288.00 287.00 0.00 z 97.00 0.00 z 2.00 0.00 z 1091.00
2007 0.00 a 0.00 0.00 25.50 96.50 0.00 z 181.50 253.00 139.50 65.00 0.00 0.00 761.00
2008 0.00 0.00 17.00 75.00 195.00 382.00 215.50 168.50 37.50 30.00 2.00 0.00 a 1122.50
2009 0.00 a 0.00 z 14.00 66.50 186.50 308.00 350.00 293.50 62.50 81.00 0.00 0.00 1362.00
2010 0.00 0.00 1.50 28.50 223.00 353.00 204.50 299.00 144.00 43.50 9.00 0.00 1306.00
2011 0.00 8.50 39.50 169.50 282.00 476.00 393.50 428.00 231.00 87.32 a 10.50 0.00 2125.82
2012 0.00 0.00 27.90 a 121.00 230.29 c 371.50 279.50 311.00 169.14 a 91.50 h 0.00 z 0.00 z 1510.32
Period of Record Statistics
MEAN 0.10 1.27 11.21 71.83 196.01 303.75 286.29 254.00 144.46 45.78 4.14 0.23 1304.43
S.D. 0.36 3.28 11.48 39.04 63.73 61.47 60.82 61.94 52.25 27.60 5.28 0.94 230.67
SKEW 3.82 4.17 1.18 0.37 0.00 0.18 -0.12 0.39 0.23 0.44 1.76 4.66 0.69
MAX 2.00 21.00 47.00 169.50 370.50 476.00 425.00 428.00 303.00 122.50 25.00 5.50 2125.82
MIN 0.00 0.00 0.00 11.67 32.50 157.50 147.00 113.50 37.50 4.50 0.00 0.00 837.00
NO YRS 64 64 65 65 66 64 65 61 64 60 61 62 50