HEADWORKS PTLD WTR BUR, OREGON

Monthly Total Heating Degree Days

(353770)

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
1899 0.00 z 0.00 z 0.00 z 580.96 d 517.00 278.50 84.00 202.50 162.50 534.00 510.00 785.00 3654.46
1900 754.50 727.00 543.50 476.50 339.50 118.50 75.50 188.00 265.00 502.00 659.00 750.72 a 5399.72
1901 895.00 732.67 a 558.00 g 597.00 364.77 a 280.50 137.00 59.00 0.00 z 337.00 595.00 797.50 4795.43
1902 893.50 692.50 668.64 b 0.00 z 0.00 z 176.00 110.50 110.00 261.50 387.50 700.00 844.23 a 4844.37
1903 805.50 838.50 0.00 z 0.00 z 0.00 z 152.00 131.50 88.50 303.00 0.00 z 0.00 z 845.00 3164.00
1904 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 806.50 806.50
1905 0.00 z 0.00 z 0.00 z 428.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 428.50
1906 0.00 z 0.00 z 0.00 z 0.00 z 348.50 222.00 10.00 26.00 142.00 387.50 620.50 734.50 2491.00
1907 1011.00 477.50 g 718.50 483.00 254.00 183.50 48.50 129.00 182.50 308.50 566.00 753.00 4637.50
1908 786.00 754.00 678.00 445.50 478.50 231.50 28.50 104.50 228.00 476.00 567.00 871.00 5648.50
1909 1046.50 721.50 656.50 547.50 424.00 178.50 149.50 125.50 177.00 413.50 660.00 981.00 6081.00
1910 942.50 820.00 495.50 430.50 254.50 230.17 a 46.50 63.00 170.00 322.00 634.00 721.50 5130.17
1911 868.50 703.50 557.50 434.00 372.50 279.00 73.50 103.50 478.00 527.00 726.50 862.50 5986.00
1912 909.50 697.00 802.00 641.00 347.50 137.50 114.00 217.50 174.50 435.15 d 593.00 793.00 5861.65
1913 942.00 769.50 723.50 489.64 b 0.00 z 143.50 91.00 108.00 203.50 448.50 629.50 843.50 5392.14
1914 777.00 680.00 533.50 450.50 307.50 297.00 75.00 54.50 272.00 303.50 610.00 951.50 5312.00
1915 866.00 641.50 487.00 394.66 a 354.50 206.25 b 91.00 30.50 165.00 389.00 674.50 798.00 5097.91
1916 1086.00 742.50 695.50 472.50 486.50 203.28 a 135.50 85.25 a 187.00 467.00 726.50 929.50 6217.03
1917 912.29 c 742.50 801.50 614.00 450.50 209.00 44.50 0.00 z 158.00 347.50 521.00 629.00 5429.79
1918 708.50 741.00 669.50 470.50 396.00 74.50 59.50 98.50 102.50 353.50 616.00 803.50 5093.50
1919 801.00 720.50 627.00 467.00 325.50 210.50 54.00 49.50 169.50 528.00 681.00 1046.00 5679.50
1920 805.50 667.00 641.50 593.50 385.00 180.00 39.00 60.00 225.00 0.00 z 635.00 719.00 4950.50
1921 826.00 654.00 592.50 437.50 302.00 30.00 100.00 44.50 205.00 325.50 505.50 857.15 a 4879.65
1922 973.50 802.00 775.00 588.00 331.50 98.00 40.50 55.00 141.50 379.00 718.00 984.50 5886.50
1923 804.50 785.00 685.50 391.00 345.50 184.00 47.00 25.50 119.00 342.00 492.50 785.50 5007.00
1924 858.00 565.50 643.00 440.00 209.00 138.00 68.50 85.77 a 162.50 394.50 647.50 978.50 5190.77
1925 741.00 597.00 613.50 394.50 209.50 150.00 37.00 82.00 146.50 322.00 630.50 660.50 4584.00
1926 747.50 527.50 419.00 249.00 333.50 172.00 59.00 48.00 242.50 300.00 458.50 721.50 4278.00
1927 809.50 647.50 669.50 500.00 373.00 128.50 90.50 93.50 275.00 397.00 560.50 917.00 5461.50
1928 888.50 716.63 c 570.50 549.50 239.00 226.00 123.50 75.90 b 190.50 320.50 550.00 832.50 5283.03
1929 956.50 824.00 625.50 532.00 276.00 162.00 36.50 26.35 a 141.00 289.00 640.50 694.50 5203.85
1930 1130.50 619.50 502.50 330.00 379.00 162.50 71.00 17.00 136.50 408.00 574.50 783.00 5114.00
1931 720.00 623.00 598.50 397.00 189.00 144.00 43.40 a 38.50 222.50 372.50 689.00 848.00 4885.40
1932 881.50 804.00 640.00 471.50 339.00 126.00 101.00 73.00 114.00 318.50 550.00 905.00 5323.50
1933 876.00 852.00 665.50 480.00 453.00 218.50 54.50 66.50 289.00 339.50 586.50 656.00 5537.00
1934 659.50 498.00 379.00 257.00 225.50 168.50 84.00 26.50 176.00 303.05 b 530.00 736.00 4043.05
1935 917.60 a 609.50 757.50 497.50 309.50 149.50 105.50 80.00 102.50 433.50 743.00 758.00 5463.60
1936 761.50 929.50 703.50 360.00 204.60 a 123.00 42.50 42.50 166.00 275.50 593.50 754.00 4956.10
1937 1144.50 802.50 645.00 562.50 296.50 128.50 28.50 90.50 161.00 283.50 553.50 719.00 5415.50
1938 806.00 695.00 678.00 437.00 283.00 138.50 55.00 81.00 76.50 341.00 720.00 a 778.50 5089.50
1939 767.00 764.50 618.00 394.00 262.50 246.50 65.50 50.00 151.50 386.00 557.00 690.50 4953.00
1940 824.08 a 619.50 533.50 393.00 179.50 108.50 38.50 34.50 99.50 301.00 663.50 738.50 4533.58
1941 738.00 541.50 427.50 373.50 292.50 179.00 24.00 93.00 213.00 392.00 560.50 775.00 4609.50
1942 912.00 702.00 647.50 425.00 376.00 245.00 43.00 55.00 104.00 330.00 653.50 799.50 5292.50
1943 986.50 657.00 665.50 377.00 385.00 214.50 30.48 a 84.00 87.50 367.50 569.00 789.50 5213.48
1944 833.50 723.00 662.50 471.50 297.50 183.50 44.50 70.00 134.50 258.50 644.00 808.50 5131.50
1945 757.50 665.00 721.00 546.50 277.00 199.00 47.50 51.00 213.00 399.50 674.00 792.50 5343.50
1946 811.00 683.50 667.50 482.00 251.00 219.00 80.50 74.50 213.50 541.50 737.50 783.00 5544.50
1947 967.50 600.50 536.50 440.00 230.50 222.41 a 81.00 118.00 143.28 a 424.50 637.00 773.50 5174.69
1948 821.50 800.00 726.00 580.50 351.50 122.00 124.00 118.00 241.03 a 480.50 756.00 956.00 6077.03
1949 1153.20 a 833.00 691.09 b 450.00 271.50 184.66 a 113.15 a 84.22 a 145.86 a 583.83 a 478.50 869.55 a 5858.55
1950 1198.50 822.00 759.50 584.50 433.50 232.50 69.23 a 38.50 178.00 462.50 681.50 662.50 6122.73
1951 893.66 b 715.00 823.10 b 425.00 410.23 a 139.50 59.93 a 100.48 b 148.00 540.95 a 674.48 a 944.47 a 5874.81
1952 950.67 a 770.11 b 723.00 429.83 a 292.50 214.00 43.50 58.00 107.59 a 232.50 702.00 835.97 a 5359.66
1953 650.48 a 647.50 674.77 a 515.00 394.50 285.50 65.00 74.00 129.00 335.50 549.50 737.00 5057.75
1954 894.35 a 664.00 724.50 527.00 299.67 a 283.50 132.55 b 134.33 a 195.00 415.73 c 522.41 a 789.98 a 5583.03
1955 872.50 733.00 795.50 635.69 a 429.35 a 219.00 142.82 c 79.57 a 202.76 a 411.02 b 793.45 a 858.70 a 6173.35
1956 863.35 a 916.00 771.00 452.07 a 276.93 a 245.69 a 73.37 a 100.00 165.50 499.50 665.00 796.50 5824.91
1957 1065.00 749.00 674.50 465.50 276.50 177.50 79.00 115.22 a 69.50 424.70 a 639.50 735.50 5471.42
1958 704.00 500.00 658.00 468.50 153.00 110.00 16.00 13.50 150.00 272.50 579.00 618.00 4242.50
1959 776.50 707.50 637.50 475.50 369.50 161.50 54.00 88.50 231.50 374.50 589.50 720.50 5186.50
1960 900.00 669.50 642.00 460.50 387.50 126.50 40.50 134.00 167.50 362.50 606.50 726.50 5223.50
1961 633.50 594.50 626.00 521.00 328.50 95.00 25.00 16.00 219.50 425.50 688.50 785.00 4958.00
1962 834.00 635.50 722.00 410.50 444.00 168.00 97.00 67.00 127.50 356.00 561.21 a 684.50 5107.21
1963 941.00 476.00 633.50 549.50 306.50 228.50 97.00 46.00 53.00 300.00 577.50 707.50 4916.00
1964 755.50 673.00 680.50 563.00 391.00 221.00 74.50 104.50 178.50 274.00 668.50 861.00 5445.00
1965 762.00 658.50 572.50 423.50 398.50 168.50 47.50 30.50 170.50 237.50 496.00 823.05 a 4788.55
1966 799.50 663.00 640.50 438.00 291.00 181.00 71.00 38.00 105.50 357.00 550.50 704.00 4839.00
1967 742.00 603.00 708.00 574.00 305.50 100.00 24.00 5.00 46.00 325.00 519.00 846.50 4798.00
1968 814.00 497.50 524.50 522.50 302.50 169.50 47.00 91.50 143.00 417.50 579.50 889.50 4998.50
1969 999.00 721.50 604.00 486.00 227.50 129.50 106.00 116.00 140.50 387.50 548.00 720.00 5185.50
1970 761.00 513.00 605.50 595.00 321.50 133.00 57.50 35.00 219.50 403.00 595.00 814.00 5053.00
1971 816.50 652.50 741.00 494.50 274.00 258.00 65.50 27.50 214.50 452.50 639.00 850.00 5485.50
1972 885.50 679.50 571.00 605.00 267.00 157.50 51.50 46.00 240.50 418.50 568.00 921.50 5411.50
1973 840.00 555.00 628.50 449.00 260.00 180.00 47.50 102.50 119.00 412.00 728.00 674.50 4996.00
1974 882.50 683.50 618.00 493.50 403.00 147.50 84.50 57.50 67.50 317.00 573.00 721.00 5048.50
1975 782.50 707.50 687.00 595.50 325.50 221.00 63.50 128.50 80.00 413.50 640.50 692.00 5337.00
1976 736.50 701.50 693.50 488.50 278.50 233.00 68.00 86.80 a 105.50 332.50 470.50 705.00 4899.80
1977 797.00 525.50 682.00 391.00 433.00 98.50 71.50 53.00 198.50 346.68 a 663.50 712.50 4972.68
1978 741.23 c 582.50 522.50 494.50 376.50 113.00 77.00 74.00 186.00 261.00 730.00 895.00 5053.23
1979 1016.00 727.00 533.00 474.00 266.50 137.50 59.50 40.00 69.00 287.50 582.50 640.50 4833.00
1980 916.00 637.00 653.50 389.50 332.50 233.50 45.50 93.50 106.00 280.00 516.50 642.73 a 4846.23
1981 584.87 a 581.50 532.50 431.50 302.50 182.50 73.00 23.00 125.00 386.00 503.50 717.50 4443.37
1982 852.00 667.00 646.00 536.00 315.50 121.50 75.50 48.50 124.00 316.50 641.50 750.50 5094.50
1983 622.00 522.00 510.50 424.00 242.50 178.50 92.00 20.50 169.00 342.00 554.00 936.50 4613.50
1984 717.50 578.50 500.00 526.00 356.50 213.00 43.00 23.00 119.00 437.50 614.50 863.50 4992.00
1985 787.50 734.00 681.00 412.50 302.50 123.00 1.50 60.00 207.50 393.50 857.50 878.33 a 5438.83
1986 652.50 640.50 425.50 474.50 313.50 90.00 88.50 13.00 223.00 259.50 548.50 712.00 4441.00
1987 771.00 561.50 561.50 332.50 252.00 88.00 58.50 32.50 0.00 z 208.50 512.50 843.50 4222.00
1988 830.50 592.50 617.00 434.50 324.50 163.00 77.50 40.00 114.50 219.50 603.00 730.00 4746.50
1989 780.00 841.50 650.50 330.50 274.50 103.00 56.50 58.00 72.00 355.50 522.50 742.00 4786.50
1990 721.00 713.50 544.00 336.50 333.50 138.50 30.00 23.50 44.50 397.50 556.50 976.50 4815.50
1991 790.50 453.50 636.50 495.00 410.00 221.50 18.50 30.00 50.00 300.00 549.00 674.50 4629.00
1992 654.00 469.00 397.50 338.50 135.00 83.00 16.50 11.50 120.00 294.00 565.50 830.50 3915.00
1993 886.50 676.00 551.00 429.50 176.00 151.50 115.00 42.00 76.00 227.00 700.50 742.50 4773.50
1994 664.00 682.00 494.00 388.00 200.00 163.00 33.00 7.50 40.00 342.50 735.00 777.00 4526.00
1995 688.00 545.50 551.00 454.50 224.00 154.00 22.00 48.50 57.00 352.00 448.00 689.00 4233.50
1996 768.00 658.50 572.00 382.50 350.50 121.00 24.00 28.00 154.00 350.50 608.50 763.00 4780.50
1997 760.00 610.00 613.00 449.00 157.00 0.00 z 24.00 1.50 80.00 393.00 460.50 754.00 4302.00
1998 706.00 558.00 561.00 421.00 348.50 121.50 31.00 8.00 69.00 346.00 556.00 833.50 4559.50
1999 722.00 652.50 659.00 479.00 388.50 201.00 62.50 29.00 98.00 309.50 492.00 683.00 4776.00
2000 798.50 612.00 627.00 366.50 336.50 135.50 48.00 61.50 132.00 350.50 672.50 730.50 4871.00
2001 713.00 647.50 586.50 528.00 254.00 204.50 86.50 32.00 101.00 398.50 533.00 752.50 4837.00
2002 791.00 611.50 697.50 468.50 366.50 140.00 37.50 47.50 111.00 380.50 521.00 690.00 4862.50
2003 597.00 595.00 578.00 512.50 320.50 118.00 25.50 6.00 103.00 294.50 660.00 743.50 4553.50
2004 830.00 618.50 473.50 340.50 274.00 121.00 27.50 36.00 155.50 372.50 595.50 703.00 4547.50
2005 733.00 581.50 497.50 449.50 253.50 200.00 34.00 21.50 176.00 328.50 625.00 801.00 4701.00
2006 683.50 686.00 655.00 438.50 261.50 125.50 38.00 57.00 116.00 404.50 614.50 744.50 4824.50
2007 840.00 610.50 531.00 456.00 265.50 f 140.50 g 18.50 h 58.00 191.00 465.50 697.00 515.50 m 3849.00
2008 897.50 668.50 718.50 598.00 349.50 271.00 46.50 a 65.50 146.50 428.00 523.50 906.50 5619.50
2009 835.50 677.50 762.50 534.50 321.50 154.50 48.00 65.00 120.00 437.00 625.50 896.00 5477.50
2010 657.00 558.00 599.50 524.00 456.00 266.50 117.00 99.00 155.00 358.50 666.00 767.50 5224.00
2011 785.00 751.00 723.50 634.00 469.00 247.50 116.00 68.50 102.00 375.00 660.00 b 836.00 5767.50
2012 775.50 685.50 749.00 489.00 357.00 259.00 79.00 58.50 125.69 a 372.50 553.50 806.50 5310.69
2013 878.50 675.50 602.43 a 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 2156.43
Period of Record Statistics
MEAN 827.76 669.36 627.47 469.42 320.01 174.48 64.69 64.92 155.02 369.17 607.86 789.29 5120.94
S.D. 119.58 95.71 92.30 79.57 77.43 54.96 32.64 40.33 65.94 75.03 78.69 88.84 476.19
SKEW 0.69 0.13 -0.38 -0.05 0.06 0.17 0.58 1.09 1.16 0.39 0.32 0.51 0.15
MAX 1198.50 929.50 823.10 641.00 517.00 297.00 149.50 217.50 478.00 583.83 857.50 1046.00 6217.03
MIN 584.87 453.50 379.00 249.00 135.00 30.00 1.50 1.50 40.00 208.50 448.00 618.00 3915.00
NO YRS 111 110 109 110 108 110 111 111 110 110 111 112 100