WILLOWS 6 W, CALIFORNIA

Monthly Total Heating Degree Days

(049699)

Base Temperature = 65 F

File last updated on Jul 24, 2006
*** Note *** Provisional Data *** After Year/Month 200603
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 1.00 0.00 19.00 71.00 370.50 727.00 1188.50
1949 801.00 558.50 441.00 84.00 56.50 1.50 0.00 0.00 2.50 138.50 256.00 674.50 3014.00
1950 790.50 432.00 424.50 144.00 84.50 19.50 0.00 0.50 12.50 124.50 261.67 c 382.00 h 2294.17
1951 674.50 523.50 358.50 164.00 85.50 2.50 0.00 0.50 0.50 87.00 359.50 637.50 2893.50
1952 736.50 484.50 453.50 164.00 74.00 32.50 0.00 a 0.00 7.50 27.50 414.00 646.50 3040.50
1953 481.00 311.50 g 367.50 226.50 143.00 35.00 0.00 5.50 0.50 111.00 344.00 497.00 2211.00
1954 608.50 452.00 453.50 159.00 26.00 g 28.50 0.00 9.00 12.00 103.50 393.50 728.00 2947.50
1955 728.50 501.50 361.50 340.50 66.00 5.50 0.00 0.00 8.50 58.50 405.00 539.50 3015.00
1956 578.50 572.50 353.50 200.00 90.50 5.50 0.00 0.00 0.00 135.00 330.00 596.00 2861.50
1957 692.50 408.50 347.50 181.50 91.00 0.00 0.00 1.50 7.50 166.00 399.50 615.50 2911.00
1958 629.50 356.00 485.50 287.00 26.00 7.50 0.00 0.00 5.50 22.00 297.50 404.00 2520.50
1959 514.50 462.50 255.00 53.50 75.50 0.00 0.00 4.50 14.00 32.50 258.00 559.00 2229.00
1960 643.50 452.00 308.00 219.00 97.50 0.00 0.00 0.00 0.00 62.50 385.50 601.50 2769.50
1961 667.50 391.00 434.00 190.00 108.00 0.00 0.00 0.00 9.00 122.00 376.00 622.00 2919.50
1962 642.00 485.50 464.00 116.50 94.00 3.00 0.00 0.00 11.00 96.00 301.00 553.50 2766.50
1963 731.50 256.50 448.00 362.00 83.00 5.50 0.00 3.00 3.50 104.50 418.50 730.00 3146.00
1964 665.98 a 410.00 414.00 218.00 106.00 31.00 0.00 0.00 19.00 67.00 454.00 498.50 2883.48
1965 635.00 466.50 364.50 252.50 79.50 14.00 0.00 0.50 12.00 41.50 341.50 759.00 2966.50
1966 651.50 521.50 368.00 91.00 19.50 18.50 0.00 3.50 5.50 61.50 319.00 592.50 2652.00
1967 594.50 429.00 452.00 496.00 94.00 42.50 0.00 0.00 0.00 40.00 257.50 575.00 2980.50
1968 685.00 315.50 310.50 150.00 64.00 0.00 0.00 10.00 0.00 110.50 406.50 711.00 2763.00
1969 727.50 574.50 426.00 250.50 24.00 4.50 0.00 0.00 0.00 148.00 308.50 498.00 2961.50
1970 494.00 366.00 318.50 264.50 54.00 17.00 0.00 0.00 6.00 151.00 349.00 686.50 2706.50
1971 621.00 501.50 412.50 247.50 97.00 21.50 0.00 1.00 39.50 211.50 362.50 700.00 3215.50
1972 693.50 400.50 216.50 184.00 68.00 14.50 0.00 0.00 24.50 156.50 499.00 799.50 3056.50
1973 727.50 408.00 478.00 170.50 32.00 2.00 0.00 1.00 5.00 97.50 436.50 565.00 2923.00
1974 616.50 511.50 367.50 252.00 60.00 2.50 5.50 0.00 0.00 61.00 382.00 632.50 2891.00
1975 653.00 481.00 427.50 360.50 64.50 9.50 0.50 1.50 0.00 183.00 440.50 585.00 3206.50
1976 569.50 420.00 366.50 268.50 0.00 4.00 0.00 4.50 5.00 60.50 277.50 550.50 2526.50
1977 686.00 342.50 415.00 68.50 189.00 1.00 0.00 0.00 9.00 73.00 336.00 482.00 2602.00
1978 480.00 0.00 z 241.00 246.50 45.00 0.00 a 0.00 0.00 0.00 z 0.00 z 424.20 e 687.50 2124.20
1979 584.00 465.00 306.50 246.00 61.50 6.50 0.00 0.00 0.00 121.00 411.00 525.50 2727.00
1980 500.00 385.50 416.00 208.50 112.50 50.00 6.20 a 1.00 7.00 134.50 339.50 558.53 b 2719.23
1981 597.00 407.50 378.50 195.00 49.50 4.00 0.00 0.00 8.00 140.00 305.00 535.27 a 2619.77
1982 689.00 417.50 454.50 295.00 31.50 27.50 1.00 0.00 17.50 108.50 463.50 586.50 3092.00
1983 625.50 409.50 397.00 324.50 111.00 2.50 2.50 0.00 0.00 23.00 372.00 557.00 2824.50
1984 514.50 453.00 245.50 209.00 42.00 4.00 0.00 0.00 0.00 155.00 424.50 600.00 2647.50
1985 626.50 361.00 456.00 116.50 96.00 11.00 0.00 0.00 24.50 105.50 467.50 703.50 2968.00
1986 465.00 334.00 221.00 195.50 75.50 1.00 0.00 0.00 77.50 71.50 268.00 588.50 2297.50
1987 613.50 414.50 412.50 98.50 38.00 1.50 1.50 0.00 2.50 15.00 351.50 572.50 2521.50
1988 581.50 315.50 262.50 167.50 128.50 47.00 0.00 5.00 6.00 42.50 384.50 584.50 2525.00
1989 429.00 i 522.50 377.50 118.50 52.00 2.00 0.00 0.00 20.50 102.50 311.00 545.50 2052.00
1990 574.50 501.00 283.50 72.50 72.50 7.50 0.00 4.00 0.00 49.50 377.50 732.00 2674.50
1991 544.50 298.50 543.00 312.00 136.00 15.00 0.00 4.50 0.00 88.50 275.00 580.50 2797.50
1992 643.77 a 205.00 j 215.50 i 138.00 2.00 19.50 0.00 0.00 0.00 62.00 348.50 647.50 1861.27
1993 662.50 480.00 219.00 222.00 57.00 26.00 0.00 0.00 6.00 32.50 341.00 386.00 j 2046.00
1994 345.50 j 492.50 271.50 169.50 65.00 12.50 0.00 0.00 7.50 99.00 379.50 i 487.50 j 1117.50
1995 366.50 j 352.00 404.00 245.50 118.00 25.50 0.00 0.00 1.00 31.00 122.50 k 316.00 k 1177.00
1996 395.50 i 271.50 i 202.50 j 203.00 74.00 2.50 0.00 0.00 2.50 110.00 141.00 l 340.00 j 392.00
1997 520.00 334.00 222.00 131.50 14.50 4.82 b 0.00 0.00 2.50 54.00 277.00 517.00 2077.32
1998 499.00 442.50 310.50 263.50 207.50 7.00 0.00 0.00 9.50 87.00 408.00 644.00 2878.50
1999 421.00 i 482.22 a 446.18 c 206.00 66.02 d 32.59 a 0.53 b 0.00 b 0.00 a 42.50 322.50 d 505.30 a 2103.84
2000 563.34 b 439.14 a 333.50 126.35 d 98.54 c 11.50 0.00 a 0.00 6.00 147.50 452.31 d 511.50 c 2689.68
2001 0.00 z 365.50 h 203.50 g 290.00 2.50 3.21 b 0.00 0.00 0.00 45.50 302.78 c 571.29 c 1215.28
2002 596.00 397.00 386.00 157.00 78.50 0.00 0.00 0.00 10.50 109.00 300.50 555.50 2590.00
2003 466.50 418.00 308.50 378.50 101.50 0.00 0.00 0.00 2.50 23.50 459.50 585.00 2743.50
2004 0.00 z 457.00 171.50 133.20 e 23.50 0.50 0.00 0.00 9.00 154.00 360.50 517.00 1826.20
2005 607.00 327.00 266.50 192.50 74.50 28.50 0.00 0.00 5.50 55.50 254.00 449.50 2260.50
2006 481.50 335.00 534.00 227.14 b 14.97 b 0.00 c 0.00 n 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1592.61
Period of Record Statistics
MEAN 615.21 428.79 366.56 207.84 73.26 11.77 0.32 1.05 8.16 90.08 358.94 596.74 2774.42
S.D. 85.06 73.01 86.72 85.61 41.61 13.19 1.14 2.21 12.18 46.77 63.92 83.73 256.75
SKEW -0.01 -0.12 -0.27 0.71 0.70 1.21 4.25 2.45 3.67 0.35 0.10 0.32 -0.65
MAX 801.00 574.50 543.00 496.00 207.50 50.00 6.20 10.00 77.50 211.50 499.00 799.50 3215.50
MIN 465.00 256.50 171.50 53.50 0.00 0.00 0.00 0.00 0.00 15.00 254.00 404.00 2077.32
NO YRS 51 53 55 58 57 58 58 58 57 57 55 53 44