BLYTHE AP, CALIFORNIA

Monthly Total Heating Degree Days

(040927)

Base Temperature = 65 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 201303
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
1948 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 0.00 0.00 9.50 183.50 441.50 634.50
1949 648.00 341.50 117.50 11.90 a 0.00 0.00 0.00 0.00 0.00 33.50 20.50 405.50 1578.40
1950 459.00 104.00 51.50 3.00 1.03 a 0.00 0.00 c 0.00 f 0.00 0.00 72.50 176.50 867.53
1951 367.00 215.00 101.50 20.50 6.50 j 0.00 0.00 0.00 e 0.00 14.00 139.00 391.50 1248.50
1952 441.00 230.00 220.00 12.50 0.00 0.00 0.00 f 0.00 0.00 0.00 205.50 i 367.50 1271.00
1953 172.00 227.50 83.00 25.00 0.50 0.00 0.00 0.00 0.00 3.00 93.00 347.50 951.50
1954 360.00 58.00 119.00 0.00 0.00 0.00 0.00 0.00 0.00 3.50 19.50 337.50 897.50
1955 437.50 318.00 90.00 17.00 2.00 0.00 0.00 0.00 0.00 0.00 116.00 263.50 1244.00
1956 254.41 b 346.50 84.00 29.50 0.00 0.00 0.00 0.00 0.00 17.00 148.80 e 286.50 1166.71
1957 350.50 85.50 42.50 22.50 0.00 0.00 0.00 0.00 d 0.00 5.00 183.00 259.00 948.00
1958 282.50 115.63 a 159.50 40.00 0.00 0.00 0.00 0.00 0.00 1.00 139.00 199.50 937.13
1959 270.00 241.50 13.50 0.00 0.00 0.00 0.00 0.00 0.00 23.50 61.00 304.50 914.00
1960 448.00 250.50 28.50 10.50 0.00 0.00 0.00 0.00 0.00 0.50 130.00 370.00 1238.00
1961 257.00 113.00 67.00 2.00 0.00 0.00 0.00 0.00 0.00 17.50 148.00 321.00 925.50
1962 282.50 173.50 164.50 0.00 4.13 a 0.00 0.00 0.00 0.00 0.00 55.00 246.00 925.63
1963 455.50 65.00 93.00 44.50 0.00 0.00 0.00 0.00 0.00 0.00 120.50 369.50 1148.00
1964 472.50 320.50 170.00 42.50 17.50 0.00 0.00 0.00 0.00 0.00 217.50 344.00 1584.50
1965 310.50 210.00 154.00 63.00 0.00 0.00 0.00 0.00 0.00 0.00 74.00 362.50 1174.00
1966 441.50 313.50 79.50 1.50 0.00 0.00 0.00 0.00 0.00 0.00 101.00 316.50 1253.50
1967 359.00 148.00 72.50 78.00 0.00 0.00 0.00 0.00 0.00 0.00 53.50 434.00 1145.00
1968 354.00 98.50 44.00 17.00 0.00 0.00 0.00 0.00 0.00 0.00 73.50 519.50 1106.50
1969 268.00 268.50 158.00 0.50 4.00 0.00 0.00 0.00 0.00 10.00 79.00 311.00 1099.00
1970 392.50 125.50 113.50 55.50 0.00 0.00 0.00 0.00 0.00 27.00 155.00 484.50 1353.50
1971 451.50 233.00 117.50 24.50 9.00 0.00 0.00 0.00 0.00 139.50 284.00 551.00 1810.00
1972 554.50 255.00 42.00 8.50 0.00 0.00 0.00 0.00 0.00 12.00 168.50 396.50 1437.00
1973 414.00 195.50 163.00 10.00 0.00 0.00 0.00 0.00 0.00 0.00 180.50 299.00 1262.00
1974 377.50 209.00 77.50 1.00 0.50 0.00 0.00 0.00 0.00 13.00 85.00 417.00 1180.50
1975 369.50 258.50 162.00 114.50 4.00 0.00 0.00 0.00 0.00 15.50 160.00 333.00 1417.00
1976 295.00 161.00 113.50 56.50 0.00 0.00 0.00 0.00 0.00 12.00 97.00 350.00 1085.00
1977 330.00 126.00 180.50 28.50 2.00 0.00 0.00 0.00 0.00 0.00 64.50 229.50 961.00
1978 335.50 171.00 44.00 18.00 1.50 0.00 0.00 0.00 0.00 0.00 198.00 516.50 1284.50
1979 526.00 244.50 116.50 3.50 0.00 0.00 0.00 0.00 0.00 9.00 225.50 299.00 1424.00
1980 213.00 112.50 97.00 33.00 0.00 0.00 0.00 0.00 0.00 4.00 87.50 151.50 698.50
1981 125.00 124.00 58.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 z 0.00 z 255.50 562.50
1982 329.00 140.00 82.50 19.00 1.00 0.00 0.00 0.00 0.00 3.50 158.00 383.50 1116.50
1983 276.50 165.00 80.00 50.00 1.00 0.00 0.00 0.00 0.00 0.00 123.50 269.50 965.50
1984 259.00 195.50 21.50 23.50 0.00 0.00 0.00 0.00 0.00 4.50 150.00 369.00 1023.00
1985 345.50 235.50 89.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 200.50 325.00 1195.50
1986 169.00 146.00 48.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 73.50 332.00 768.50
1987 376.50 160.00 82.50 6.50 0.00 0.00 0.00 0.00 0.00 0.00 122.50 422.00 1170.00
1988 348.50 123.50 65.00 26.50 9.00 0.00 0.00 0.00 0.00 0.00 157.00 382.00 1111.50
1989 415.00 233.00 40.50 6.00 0.00 0.00 0.00 0.00 0.00 16.00 71.00 327.00 1108.50
1990 411.00 273.50 93.00 1.00 0.00 0.00 0.00 0.00 0.00 0.00 105.00 0.00 z 883.50
1991 0.00 z 67.50 0.00 z 0.00 z 1.00 0.00 0.00 0.00 0.00 30.50 112.00 301.00 512.00
1992 312.00 97.50 70.00 2.50 0.00 0.00 0.00 0.00 0.00 0.00 172.00 454.50 1108.50
1993 338.00 218.00 46.00 0.00 0.00 0.00 0.00 0.00 0.00 0.50 177.50 336.50 1116.50
1994 275.00 249.00 35.00 11.50 0.00 0.00 0.00 0.00 0.00 4.00 284.00 368.50 1227.00
1995 303.50 0.00 z 90.00 28.50 0.00 z 0.00 0.00 0.00 0.00 0.00 15.50 275.00 712.50
1996 295.50 118.00 47.00 0.00 0.00 0.00 0.00 0.00 0.00 56.00 61.00 269.50 847.00
1997 244.50 155.00 29.50 23.00 0.00 0.00 0.00 0.00 0.00 1.00 82.00 370.50 905.50
1998 276.00 246.00 110.50 59.00 0.00 0.00 0.00 0.00 0.00 0.00 100.00 330.50 1122.00
1999 243.00 140.00 56.50 90.00 0.50 0.00 0.00 0.00 0.00 0.00 62.00 267.50 859.50
2000 214.50 134.50 70.00 0.00 0.00 0.00 0.00 0.00 0.00 8.50 251.79 b 274.00 953.29
2001 373.00 251.00 69.00 47.50 0.00 0.00 0.00 0.00 d 0.00 0.00 77.00 423.00 1240.50
2002 353.50 174.50 131.50 0.50 0.00 0.00 0.00 0.00 0.00 0.00 50.00 358.00 1068.00
2003 138.00 179.50 63.00 25.00 1.00 0.00 0.00 0.00 0.00 0.50 163.00 330.00 900.00
2004 277.00 264.00 32.50 11.00 0.00 0.00 0.00 0.00 0.00 36.50 191.50 312.00 1124.50
2005 264.00 199.00 71.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 72.50 329.00 935.50
2006 300.00 149.50 181.00 11.00 0.00 0.00 0.00 0.00 0.00 0.50 82.50 373.50 1098.00
2007 410.50 181.00 54.50 7.00 0.00 0.00 0.00 0.00 0.00 0.00 80.50 426.50 1160.00
2008 385.50 210.00 73.50 0.00 0.50 0.00 0.00 0.00 0.00 5.00 30.00 362.00 1066.50
2009 216.50 201.00 57.00 19.50 0.00 0.00 0.00 0.00 0.00 15.00 109.50 377.50 996.00
2010 280.50 161.00 103.00 36.00 0.50 0.00 0.00 0.00 0.00 0.50 171.50 259.00 1012.00
2011 305.50 289.00 62.00 30.50 0.00 0.00 b 0.00 0.00 0.00 0.00 139.50 435.00 1261.50
2012 254.00 174.50 82.00 9.50 0.00 0.00 0.00 0.00 0.00 0.00 67.50 310.50 898.00
2013 382.00 229.50 21.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 16.00 z 633.00
Period of Record Statistics
MEAN 335.10 190.95 86.81 21.26 0.98 0.00 0.00 0.00 0.00 8.63 121.38 343.92 1114.19
S.D. 97.45 69.96 45.89 24.06 2.79 0.00 0.00 0.00 0.00 19.90 61.96 78.19 206.93
SKEW 0.46 0.20 0.79 1.65 4.26 0.00 0.00 0.00 0.00 4.84 0.58 0.21 0.86
MAX 648.00 346.50 220.00 114.50 17.50 0.00 0.00 0.00 0.00 139.50 284.00 551.00 1810.00
MIN 125.00 58.00 13.50 0.00 0.00 0.00 0.00 0.00 0.00 0.00 15.50 151.50 698.50
NO YRS 64 64 64 63 62 64 64 64 65 64 63 64 57