ORLEANS, CALIFORNIA

Monthly Total Heating Degree Days

(046508)

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 10.50 8.50 81.50 216.00 525.00 810.50 1652.00
1949 919.50 622.00 495.50 230.50 126.00 33.50 6.00 0.50 13.50 315.50 411.00 721.50 3895.00
1950 888.50 544.00 423.00 h 326.00 186.50 63.50 0.00 2.50 45.50 210.50 405.50 537.00 3209.50
1951 718.50 514.00 553.00 199.00 148.50 22.00 8.50 6.00 11.90 a 220.50 489.50 732.00 3623.40
1952 800.50 586.00 570.00 260.00 154.50 90.00 0.00 0.00 12.50 115.50 612.00 723.00 3924.00
1953 564.50 501.00 513.50 342.00 255.00 131.50 4.00 22.00 14.50 245.50 404.50 636.50 3634.50
1954 713.50 459.50 526.00 240.50 118.00 117.50 6.50 9.00 59.00 285.00 450.00 733.00 3717.50
1955 782.00 602.00 525.45 a 481.00 173.50 61.00 42.50 1.00 66.92 d 205.50 578.50 623.00 4142.37
1956 666.00 702.00 505.00 260.50 146.00 86.00 8.50 6.50 25.50 293.00 497.50 728.00 3924.50
1957 795.00 482.00 479.00 280.00 110.50 0.00 0.00 z 0.00 z 22.50 271.50 540.00 660.00 3640.50
1958 649.50 426.00 531.00 289.00 55.50 33.50 0.00 d 0.00 28.50 174.50 395.17 a 526.00 3108.67
1959 655.50 577.50 432.00 214.00 211.00 39.50 6.50 5.00 39.00 h 178.50 514.66 a 767.00 3601.16
1960 715.00 549.00 378.00 320.69 a 229.00 2.00 0.00 18.50 7.00 209.50 499.50 675.00 3603.19
1961 614.00 453.00 503.50 271.00 223.00 24.50 4.50 5.00 47.00 258.00 408.50 g 679.00 3082.50
1962 759.00 559.00 517.50 222.50 243.50 42.50 0.00 14.00 26.00 240.00 434.00 619.50 3677.50
1963 800.00 325.50 517.50 455.00 188.50 62.00 22.00 2.50 7.50 181.50 507.50 673.50 3743.00
1964 744.00 574.50 556.50 366.50 212.50 71.50 4.00 11.50 16.50 168.50 611.50 676.00 4013.50
1965 752.50 543.50 438.50 299.00 206.50 71.00 2.50 1.00 33.50 165.50 435.50 747.00 3696.00
1966 725.00 575.50 505.00 204.50 114.50 123.62 a 17.00 3.50 14.00 198.00 450.50 652.50 3583.62
1967 721.50 543.50 515.00 568.00 170.50 45.00 0.00 0.00 4.00 173.50 425.50 756.00 3922.50
1968 756.50 398.50 389.50 296.00 163.50 39.00 0.00 19.38 c 42.60 e 211.50 446.50 741.50 3504.48
1969 799.00 626.00 477.50 331.50 73.00 31.50 0.00 1.00 6.50 321.00 479.50 629.50 3776.00
1970 624.00 445.00 383.50 444.00 145.50 32.68 b 0.00 0.00 28.00 252.00 431.50 721.50 3507.68
1971 717.00 520.00 525.50 345.00 180.50 54.64 b 8.00 3.50 73.97 a 284.17 a 522.00 775.00 4009.28
1972 724.00 523.00 323.50 342.00 118.00 22.00 0.00 14.00 94.50 187.60 b 461.00 866.50 3676.10
1973 724.00 441.50 495.00 206.00 95.14 b 36.72 a 1.50 15.00 5.50 224.00 540.00 569.50 3353.86
1974 683.00 544.00 416.00 307.00 159.13 a 7.00 11.37 a 1.00 3.10 a 169.98 a 437.00 637.00 3375.59
1975 670.00 562.50 522.35 a 433.39 b 126.07 a 63.00 14.93 d 11.37 a 0.00 256.00 543.50 570.00 3773.10
1976 627.00 546.00 473.50 356.00 113.31 b 68.50 6.72 a 25.26 d 1.50 150.72 b 339.11 b 720.48 b 3428.10
1977 722.00 415.00 509.00 237.00 284.00 16.50 0.00 z 0.00 33.00 151.50 511.55 a 531.98 c 3411.53
1978 500.28 b 425.38 b 253.00 333.00 137.00 20.50 2.07 a 2.07 a 58.93 b 93.00 534.50 770.50 3130.22
1979 719.50 548.50 350.00 293.00 102.30 a 43.50 6.00 0.00 a 0.54 b 155.00 480.50 643.52 b 3342.35
1980 603.47 a 433.33 c 440.00 244.00 168.43 a 83.79 a 0.00 z 0.00 13.39 b 191.88 b 459.50 601.00 3238.79
1981 532.50 431.41 a 402.50 243.62 a 147.77 a 36.72 a 5.34 b 2.50 55.34 a 253.17 d 435.00 570.50 3116.38
1982 770.50 510.00 503.00 388.50 90.50 46.00 9.00 0.00 47.50 240.00 552.93 a 678.50 3836.43
1983 628.78 a 498.50 425.50 374.50 141.00 31.50 24.00 7.23 a 15.50 81.50 n 506.00 684.07 a 3336.58
1984 629.00 539.00 346.00 354.00 147.00 55.00 0.00 0.00 37.50 258.50 538.50 705.00 3609.50
1985 666.50 471.00 516.00 168.00 162.50 15.50 0.00 0.50 45.50 206.00 610.50 689.00 3551.00
1986 519.00 404.50 256.00 273.10 a 176.00 15.00 0.00 0.00 128.00 128.00 422.00 607.00 2928.60
1987 698.00 471.00 427.50 164.00 105.50 10.00 16.00 0.50 j 144.50 128.50 427.00 692.50 3284.50
1988 728.00 425.00 369.50 241.00 199.50 90.50 o 3.50 0.00 11.00 49.50 443.00 699.50 3169.50
1989 684.50 592.00 441.50 155.50 147.00 24.50 9.00 1.50 14.00 259.00 446.50 696.00 3471.00
1990 705.50 669.00 416.50 174.50 270.00 68.50 3.50 13.50 5.50 274.50 606.50 937.50 4145.00
1991 823.00 458.00 511.50 292.50 208.14 c 57.50 0.00 0.00 0.00 149.32 a 390.00 652.00 3541.96
1992 637.00 393.50 260.00 161.00 12.50 38.50 0.00 2.50 4.50 121.50 454.50 736.50 2822.00
1993 708.00 552.00 301.50 310.50 101.50 72.50 0.50 0.00 23.00 111.50 574.00 674.00 3429.00
1994 563.00 515.00 326.50 224.50 101.00 49.00 0.00 i 0.00 6.50 213.50 277.50 p 696.50 2695.50
1995 587.00 170.00 i 444.50 316.00 129.68 a 69.00 1.07 b 10.00 6.00 164.50 313.00 516.50 2557.25
1996 605.50 434.50 355.50 237.50 176.50 31.50 1.50 0.00 21.00 224.50 437.00 618.50 3143.50
1997 665.00 487.50 355.00 248.50 59.50 30.00 2.00 0.00 15.50 250.00 425.50 726.50 3265.00
1998 610.50 548.00 414.00 306.00 214.50 5.50 0.00 0.00 3.50 267.50 489.50 763.00 3622.00
1999 679.50 614.00 543.50 327.50 213.00 64.00 13.50 3.00 4.50 259.37 a 404.00 694.00 3819.87
2000 641.00 474.50 434.00 218.00 158.00 36.00 5.00 0.50 21.50 237.50 564.00 649.00 3439.00
2001 699.57 a 552.50 352.50 348.00 56.50 35.00 0.00 0.00 15.00 172.50 486.00 665.00 3382.57
2002 686.00 462.00 490.00 212.00 138.50 15.00 0.00 0.00 22.50 225.00 468.00 644.00 3363.00
2003 490.50 493.50 371.50 426.00 164.50 14.00 0.00 0.00 2.00 66.50 563.50 679.00 3271.00
2004 654.00 534.50 299.50 181.00 110.00 27.50 0.00 0.52 a 30.00 215.00 502.00 652.50 3206.52
2005 707.00 471.00 374.00 305.50 141.50 74.50 0.00 0.00 30.50 208.50 525.50 651.00 3489.00
2006 646.50 535.50 581.25 a 292.50 26.00 n 6.50 q 0.00 u 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 2055.75
Period of Record Statistics
MEAN 686.54 510.62 441.04 292.09 152.82 45.74 5.32 4.49 28.23 204.53 481.39 679.85 3555.18
S.D. 86.58 73.32 85.73 85.57 55.31 29.45 7.83 6.43 30.28 59.79 67.43 78.48 306.06
SKEW 0.05 0.10 -0.47 0.76 0.07 0.89 2.53 1.56 1.93 -0.40 0.04 0.39 -0.18
MAX 919.50 702.00 581.25 568.00 284.00 131.50 42.50 25.26 144.50 321.00 612.00 937.50 4145.00
MIN 490.50 325.50 253.00 155.50 12.50 0.00 0.00 0.00 0.00 49.50 313.00 516.50 2822.00
NO YRS 58 57 57 58 57 56 54 56 57 57 56 58 46