ORLEANS, CALIFORNIA

Monthly Total Heating Degree Days

(046508)

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
1903 0.00 z 0.00 z 0.00 z 233.50 54.50 11.00 1.50 0.50 4.00 54.50 336.00 590.00 1285.50
1904 586.00 535.50 508.00 197.00 32.50 12.00 8.50 0.00 10.50 112.00 264.00 534.00 2800.00
1905 482.50 331.00 248.50 91.00 196.85 a 13.50 0.00 0.00 16.00 136.50 464.00 613.00 2592.85
1906 0.00 z 0.00 z 407.50 102.50 87.00 25.50 0.00 0.00 13.50 110.50 358.50 530.50 1635.50
1907 605.00 254.00 414.00 113.50 61.50 33.00 0.00 0.00 1.55 a 32.50 306.00 492.50 2313.55
1908 472.50 432.50 302.50 105.00 0.00 z 32.00 0.00 0.00 8.00 162.00 287.50 579.50 2381.50
1909 538.00 440.50 320.00 95.00 70.50 0.00 4.00 0.00 18.50 116.00 373.50 656.00 2632.00
1910 678.50 509.00 156.50 96.00 27.50 10.50 0.00 0.00 4.00 52.00 376.50 487.00 2397.50
1911 646.00 502.50 225.00 199.50 125.50 6.50 0.00 0.00 19.00 116.50 400.00 638.50 2879.00
1912 518.50 358.50 357.00 208.00 72.50 11.00 0.00 2.00 32.50 214.00 357.50 622.50 2754.00
1913 655.50 427.00 415.00 223.50 70.00 6.00 0.00 0.00 12.50 116.50 348.50 574.50 2849.00
1914 544.50 431.50 164.00 160.50 24.50 37.50 0.00 0.00 13.50 102.50 375.00 668.50 2522.00
1915 610.00 434.50 238.00 124.00 134.00 12.50 0.00 0.00 34.00 146.50 463.00 575.00 2771.50
1916 792.50 439.50 395.00 222.00 222.50 52.00 9.00 7.50 26.50 279.50 545.50 746.00 3737.50
1917 773.50 592.00 567.50 314.00 201.00 48.00 0.00 4.00 26.00 172.50 406.00 515.50 3620.00
1918 556.00 508.00 425.50 207.50 159.00 3.50 2.50 7.00 11.00 161.00 478.00 691.50 3210.50
1919 632.40 a 572.00 409.50 193.00 127.50 50.50 0.00 0.50 73.00 314.50 521.50 705.00 3599.40
1920 609.00 505.00 501.00 341.00 121.50 28.00 1.50 9.00 51.00 309.00 479.50 653.50 3609.00
1921 648.50 442.50 302.50 258.00 178.50 17.00 4.00 0.00 41.00 147.50 380.50 658.50 3078.50
1922 717.00 590.50 505.00 281.00 156.00 8.00 0.00 0.00 20.50 206.00 510.50 674.00 3668.50
1923 650.50 497.00 328.00 257.50 146.00 90.50 0.00 0.00 63.50 265.50 379.50 684.50 3362.50
1924 677.50 410.50 446.50 146.50 54.50 15.00 0.00 6.50 76.50 290.00 476.00 718.50 3318.00
1925 556.00 475.00 343.50 255.00 90.00 68.00 0.00 1.00 115.50 261.50 487.50 583.50 3236.50
1926 648.00 446.50 217.50 131.00 134.00 5.50 0.00 6.50 81.50 219.50 385.50 663.00 2938.50
1927 623.50 520.00 437.50 302.00 216.00 23.00 6.50 4.50 69.00 224.00 430.00 704.00 3560.00
1928 640.00 507.50 342.00 336.00 51.00 33.00 2.00 0.00 57.50 239.50 486.50 715.50 3410.50
1929 796.50 626.50 495.50 440.50 168.50 99.00 5.50 3.00 116.00 266.00 688.00 603.00 4308.00
1930 907.00 503.00 426.50 310.00 290.50 63.50 0.00 4.00 80.50 300.00 594.00 789.50 4268.50
1931 704.00 491.50 446.00 255.00 54.50 61.00 0.50 0.00 103.50 299.50 631.00 794.50 3841.00
1932 837.50 637.00 434.00 383.50 189.50 31.50 13.50 16.50 21.50 314.50 463.00 827.50 4169.50
1933 806.00 653.00 523.50 295.50 350.00 61.50 1.00 10.00 109.50 195.00 499.00 691.50 4195.50
1934 578.00 422.00 228.00 169.00 98.50 75.50 2.50 1.50 78.00 243.00 437.50 662.50 2996.00
1935 754.00 522.00 554.50 284.50 127.00 26.00 21.50 12.00 18.50 321.00 570.50 720.00 3931.50
1936 635.00 541.00 439.50 208.00 105.00 47.50 8.00 3.00 61.00 290.50 650.00 755.50 3744.00
1937 982.00 643.50 507.00 368.00 148.50 59.00 3.50 20.50 72.00 221.50 462.00 640.50 4128.00
1938 689.00 649.00 597.00 308.00 128.50 38.50 6.00 9.50 43.50 324.00 600.50 661.50 4055.00
1939 687.00 597.00 365.00 194.50 136.00 76.00 6.00 6.50 19.50 180.50 446.00 572.00 3286.00
1940 618.50 469.50 381.50 237.50 90.00 3.00 0.00 0.00 37.50 166.00 478.00 632.50 3114.00
1941 633.00 409.00 320.00 306.50 151.50 57.00 0.00 17.50 74.00 257.00 397.00 663.50 3286.00
1942 699.00 526.00 505.00 333.50 273.00 99.50 7.50 4.50 24.00 177.50 501.00 663.00 3813.50
1943 697.50 452.50 390.00 243.50 195.00 116.50 1.50 23.50 1.50 256.50 475.00 680.00 3533.00
1944 757.50 576.00 464.00 389.50 200.00 80.50 6.50 7.00 53.00 142.50 527.50 652.00 3856.00
1945 640.00 512.00 560.00 326.00 171.50 63.50 0.00 1.00 37.50 185.00 516.50 643.50 3656.50
1946 683.00 569.00 469.50 289.00 123.00 114.00 13.00 0.00 34.00 340.50 580.50 664.50 3880.00
1947 799.50 437.00 380.00 249.00 124.50 83.00 20.00 25.50 35.00 318.50 530.50 656.00 3658.50
1948 684.00 609.50 499.50 459.00 205.50 35.00 10.50 8.50 81.50 216.00 525.00 810.50 4144.50
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 646.50 535.50 579.50 298.00 77.50 11.00 0.00 0.00 35.50 259.50 478.00 682.00 3603.00
2007 792.00 582.00 378.50 245.50 93.50 29.00 1.00 4.50 41.50 268.50 475.00 731.00 3642.00
2008 812.50 583.50 494.50 341.50 133.50 42.00 0.00 2.50 11.00 238.00 422.50 774.50 3856.00
2009 695.50 586.00 447.00 314.00 100.50 19.00 1.50 0.00 18.50 232.00 553.00 766.50 3733.50
2010 566.50 437.00 478.00 393.00 258.00 50.50 0.00 8.00 19.50 204.00 514.00 624.00 3552.50
2011 641.18 a 600.96 a 522.98 d 390.52 a 262.90 e 52.24 a 2.67 b 0.00 c 3.89 c 206.31 b 522.32 b 786.07 c 3992.05
2012 712.48 a 550.50 560.14 b 306.21 a 131.46 d 65.17 a 1.07 b 0.00 a 1.50 10.50 w 0.00 z 708.57 c 3037.10
2013 784.50 848.40 c 398.41 d 9.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 27.50 z 2031.31
Period of Record Statistics
MEAN 681.41 512.06 425.50 274.37 145.99 43.80 4.24 4.45 33.58 207.66 473.33 670.47 3501.51
S.D. 94.61 85.50 97.42 90.99 63.48 29.95 6.64 6.38 31.30 69.07 80.16 78.29 434.61
SKEW 0.30 0.31 -0.60 0.27 0.41 0.75 2.72 1.66 1.35 -0.33 -0.01 0.13 -0.56
MAX 982.00 848.40 597.00 568.00 350.00 131.50 42.50 25.50 144.50 340.50 688.00 937.50 4308.00
MIN 472.50 254.00 156.50 91.00 12.50 0.00 0.00 0.00 0.00 32.50 264.00 487.00 2313.55
NO YRS 109 108 109 110 109 109 106 108 109 108 107 110 95