ABERDEEN, WASHINGTON

Monthly Total Heating Degree Days

(450008)

Base Temperature = 65 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 201304
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
1891 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 49.00 0.00 z 0.00 z 248.00 475.50 703.50 1476.00
1892 741.00 0.00 z 520.50 547.50 365.50 220.00 h 190.50 129.50 190.50 400.00 0.00 z 0.00 z 3085.00
1893 807.03 a 800.00 624.50 584.50 345.65 a 316.50 138.50 65.88 c 244.00 483.27 c 487.50 g 414.50 k 4409.83
1894 56.00 z 228.50 s 669.50 516.00 403.00 257.00 161.50 64.50 219.50 468.50 572.00 840.10 a 4171.60
1895 821.50 b 545.00 599.50 478.50 385.12 e 222.00 159.13 a 0.00 z 0.00 z 309.00 677.50 740.00 4937.25
1896 743.00 641.00 672.00 552.50 404.00 231.00 52.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 3296.00
1897 0.00 z 425.50 j 773.50 427.50 290.50 216.50 170.50 70.30 c 238.50 388.50 657.50 694.50 3927.80
1898 810.13 a 610.30 a 734.91 b 499.00 262.00 h 158.28 a 164.41 c 67.00 148.00 434.50 651.11 c 846.76 d 5124.40
1899 745.50 753.31 b 708.98 d 530.50 456.06 e 0.00 z 98.00 162.00 144.00 444.00 445.34 a 690.00 5177.69
1900 718.00 666.00 527.50 463.50 411.50 241.50 166.50 0.00 z 0.00 z 418.50 b 608.50 641.50 4863.00
1901 851.50 760.50 0.00 z 658.00 484.00 381.50 287.00 167.50 312.00 280.50 559.50 779.50 5521.50
1902 864.00 620.00 722.50 528.00 353.50 262.00 199.50 185.50 336.00 415.50 683.00 841.00 6010.50
1903 106.00 z 732.50 674.00 598.50 377.50 168.50 221.50 146.00 241.00 352.00 613.50 702.00 4827.00
1904 763.00 761.00 746.00 408.21 b 390.00 280.50 170.50 154.50 156.50 324.00 471.50 716.50 5342.21
1905 772.00 599.50 500.50 473.00 381.00 247.00 157.50 151.00 190.50 470.00 578.00 757.50 5277.50
1906 737.00 574.50 616.00 394.00 393.50 276.50 112.00 137.00 241.50 367.50 603.50 699.50 5152.50
1907 930.50 591.50 705.00 499.50 387.50 333.10 a 245.00 231.00 230.00 308.50 498.50 745.00 5705.10
1908 734.00 683.00 514.00 g 597.50 489.50 316.00 163.50 261.50 300.00 454.00 538.85 d 795.50 5333.35
1909 958.00 675.50 648.50 571.73 d 482.50 285.50 235.50 203.00 244.00 406.62 a 609.50 925.00 6245.35
1910 855.00 745.50 519.00 486.50 305.00 287.78 c 224.00 259.50 256.00 395.50 595.50 715.50 5644.78
1911 890.00 726.00 618.00 622.50 478.00 303.00 137.00 155.00 c 279.00 417.50 654.00 e 780.00 6060.00
1912 729.00 625.50 679.00 593.50 329.00 277.00 134.00 f 158.21 b 244.00 500.00 610.00 746.00 5491.21
1913 915.50 715.00 700.00 496.00 359.00 188.50 107.00 81.00 175.71 b 0.00 z 621.00 724.50 5083.21
1914 690.00 585.67 d 499.50 440.17 a 263.00 232.00 132.00 212.00 290.50 318.00 572.00 862.00 5096.84
1915 814.00 619.50 509.50 425.50 377.50 245.50 154.00 106.50 247.00 385.00 682.00 775.00 5341.00
1916 1074.00 631.00 666.00 541.50 490.50 283.00 224.00 191.00 238.50 502.50 723.50 860.00 6425.50
1917 866.50 729.00 782.50 609.50 490.00 333.00 213.50 165.50 214.00 394.00 487.00 628.00 5912.50
1918 681.00 713.50 689.50 482.00 466.50 229.00 181.50 134.50 177.50 396.00 612.50 779.00 5542.50
1919 746.00 689.50 622.50 500.00 433.50 333.50 216.50 144.50 191.00 516.00 639.00 863.00 5895.00
1920 787.50 677.00 682.00 641.00 528.50 332.50 201.50 164.00 264.50 464.00 594.50 717.00 6054.00
1921 787.50 632.50 622.00 568.00 456.50 227.50 272.00 211.00 271.50 387.50 595.50 823.00 5854.50
1922 907.00 764.50 770.50 632.50 430.50 241.50 234.00 186.50 222.00 392.50 682.00 845.50 6309.00
1923 785.00 803.00 652.50 484.50 442.50 305.50 170.00 87.00 189.50 344.50 534.50 803.50 5602.00
1924 807.00 602.00 673.00 577.50 342.50 303.00 240.50 222.00 264.50 432.00 647.50 306.50 p 5111.50
1925 626.00 485.50 631.50 482.00 315.50 303.00 165.50 45.00 57.00 169.50 546.00 640.50 4467.00
1926 716.50 554.50 501.50 327.00 336.50 244.50 145.00 168.00 272.50 364.00 577.50 770.00 4977.50
1927 771.00 644.00 707.50 561.50 471.50 217.50 184.50 175.50 229.50 437.00 578.00 793.00 5770.50
1928 632.00 546.50 402.50 356.50 228.50 253.00 162.50 195.00 278.00 435.50 604.00 770.50 4864.50
1929 937.00 817.00 644.50 608.00 444.00 241.50 184.50 137.50 207.00 347.00 647.00 714.00 5929.00
1930 1095.00 649.50 603.50 408.50 462.50 265.00 237.00 126.00 271.50 473.00 617.00 765.00 5973.50
1931 626.50 625.50 610.00 448.00 325.00 249.50 168.50 185.00 239.00 417.00 692.50 807.00 5393.50
1932 853.00 735.50 603.00 472.50 425.00 243.00 248.00 147.50 220.50 382.00 536.00 817.50 5683.50
1933 814.50 798.00 659.50 533.00 500.50 289.00 233.00 140.50 324.31 a 397.50 562.50 649.00 5901.31
1934 640.50 508.50 508.50 356.00 313.50 256.00 207.00 137.50 252.00 363.00 528.00 708.50 4779.00
1935 775.00 599.00 779.00 518.00 389.50 244.50 206.00 189.00 205.00 493.00 688.00 705.77 a 5791.77
1936 713.50 817.50 735.00 425.50 321.50 209.50 141.50 100.50 240.50 331.00 617.50 709.00 5362.50
1937 1057.00 717.50 570.50 565.50 392.50 207.00 178.50 174.50 202.00 298.00 525.00 677.00 5565.00
1938 725.50 633.50 643.50 454.00 399.50 256.50 174.00 201.50 130.50 363.50 634.50 729.50 5346.00
1939 702.00 715.50 654.50 432.00 377.50 307.00 168.00 143.50 208.50 391.00 487.00 617.00 5203.50
1940 677.50 590.00 548.00 430.50 299.50 206.00 162.00 96.00 144.00 308.50 674.00 659.50 4795.50
1941 676.50 527.50 442.50 427.50 347.50 239.00 103.00 159.50 254.00 360.50 540.00 735.00 4812.50
1942 762.50 651.00 677.00 467.00 377.50 266.50 110.00 86.00 188.00 333.00 646.00 702.50 5267.00
1943 912.50 569.00 678.00 452.50 450.50 291.50 208.50 185.00 147.50 366.50 539.00 754.50 5555.00
1944 739.50 663.00 666.50 504.50 387.00 271.50 165.00 160.00 151.50 250.50 558.00 763.50 5280.50
1945 675.00 625.00 692.00 572.50 326.02 a 267.50 185.00 171.00 231.00 390.00 642.50 724.50 5502.02
1946 734.00 644.00 663.50 541.50 322.50 280.50 158.00 178.00 209.00 507.00 680.50 755.00 5673.50
1947 877.50 551.50 530.50 407.50 297.00 234.50 148.50 176.50 188.00 400.00 614.50 710.00 5136.00
1948 758.00 741.00 691.00 598.00 412.50 161.50 173.00 154.50 223.00 423.50 663.50 872.00 5871.50
1949 1027.50 727.00 605.50 467.50 307.93 a 269.00 187.50 143.00 176.50 503.00 427.76 a 755.50 5597.69
1950 1096.88 a 755.50 710.00 551.50 456.50 191.00 148.00 103.00 201.00 462.50 589.50 567.50 5832.88
1951 796.50 667.33 a 767.50 439.00 376.00 209.00 138.00 151.00 220.86 a 401.50 612.00 817.00 5595.70
1952 877.00 688.00 0.00 z 396.50 f 388.50 323.00 174.00 157.07 a 175.50 255.50 639.50 714.00 4392.07
1953 619.50 614.50 633.50 533.00 370.50 300.00 136.00 119.72 b 167.00 349.00 523.50 655.50 5021.72
1954 841.00 0.00 z 701.00 563.50 351.00 281.50 228.50 190.00 171.00 406.00 434.00 737.50 4905.00
1955 771.50 696.00 770.50 618.00 454.50 258.50 225.50 174.00 239.00 412.00 747.50 783.50 6150.50
1956 779.00 807.50 704.50 469.50 295.00 273.50 144.50 140.53 a 225.50 432.00 634.00 724.00 5629.53
1957 924.00 660.00 610.50 455.00 281.50 174.50 136.50 132.50 73.45 a 382.00 593.50 629.00 5052.45
1958 612.50 440.00 630.50 474.00 224.23 a 95.50 70.00 58.79 b 140.00 f 332.00 603.10 a 590.50 4131.13
1959 668.00 380.50 j 635.00 448.00 370.50 199.14 a 114.50 152.93 a 214.50 377.00 581.00 732.00 4492.57
1960 798.50 644.00 643.50 458.28 a 397.50 224.50 132.50 143.00 193.00 353.40 a 591.00 698.53 a 5277.71
1961 605.00 533.50 612.50 510.00 352.00 163.50 86.00 67.00 205.00 425.50 670.00 719.50 4949.50
1962 791.00 573.00 672.50 432.00 439.50 255.00 191.00 127.50 153.00 323.00 486.00 644.00 5087.50
1963 851.00 444.00 621.50 481.50 341.00 237.50 125.00 110.50 85.00 327.00 543.00 686.00 4853.00
1964 705.00 645.00 642.50 551.00 445.50 244.50 0.00 z 149.50 204.00 338.50 644.50 862.32 a 5432.32
1965 771.50 610.50 564.50 493.00 469.00 290.50 165.50 110.00 232.50 314.00 515.50 782.00 5318.50
1966 739.00 641.50 674.00 478.00 398.00 258.00 179.50 155.50 164.00 407.00 538.00 631.00 5263.50
1967 669.00 615.50 705.50 603.00 368.00 197.00 123.50 82.00 86.00 358.50 557.00 757.00 5122.00
1968 738.00 538.50 573.50 554.00 359.50 260.00 152.50 144.50 186.50 437.00 549.50 842.50 5336.00
1969 984.50 708.50 619.50 530.50 336.00 154.00 173.50 164.50 222.50 441.50 563.50 686.00 5584.50
1970 762.00 526.00 617.00 606.00 439.50 223.00 193.00 162.00 264.50 454.00 573.50 809.50 5630.00
1971 791.00 648.00 753.00 559.50 397.50 340.00 205.00 97.50 245.50 464.00 599.50 832.50 5933.00
1972 877.50 717.50 637.00 630.50 347.50 227.00 145.50 118.00 291.00 451.00 583.00 838.00 5863.50
1973 815.00 612.50 637.00 505.50 354.50 252.00 171.50 242.00 183.00 414.00 679.50 654.00 5520.50
1974 827.00 655.00 659.00 520.00 481.00 255.50 186.00 123.00 103.00 376.00 552.50 686.50 5424.50
1975 779.50 689.00 706.50 637.00 399.00 294.50 146.50 196.00 157.00 446.00 605.00 728.50 5784.50
1976 712.50 687.00 728.00 526.00 378.50 313.00 149.50 173.50 140.50 352.00 535.50 665.50 5361.50
1977 806.50 527.00 679.50 467.00 450.00 249.50 185.50 106.50 225.00 403.00 637.50 687.50 5424.50
1978 661.00 560.00 545.00 475.50 396.50 146.50 132.50 116.50 217.50 327.00 701.50 860.50 5140.00
1979 915.00 681.33 a 537.00 460.50 323.50 229.00 123.00 92.00 99.00 315.00 612.50 624.50 5012.33
1980 872.50 613.66 a 622.50 433.50 372.50 269.50 105.00 171.50 175.50 337.50 514.50 619.50 5107.66
1981 639.50 595.00 542.50 506.50 374.00 263.00 189.50 109.50 198.50 432.50 552.50 713.00 5116.00
1982 804.50 644.00 665.50 583.50 384.00 242.50 185.00 141.00 151.00 370.50 668.50 747.50 5587.50
1983 650.00 526.00 516.50 444.00 310.00 204.00 127.50 90.50 234.00 426.00 530.50 886.50 4945.50
1984 672.50 609.50 527.50 513.00 433.00 270.50 166.00 141.00 225.00 494.50 628.50 863.50 5544.50
1985 830.50 728.50 712.00 513.00 389.50 242.50 118.50 141.50 230.00 422.00 816.00 841.50 5985.50
1986 633.00 636.50 492.50 522.00 378.50 164.00 208.00 110.00 236.50 311.00 546.00 697.00 4935.00
1987 726.00 539.50 537.00 411.50 327.00 226.00 158.00 148.00 0.00 z 290.50 484.50 773.00 4621.00
1988 742.00 582.00 596.00 448.50 372.00 257.00 151.00 145.00 231.50 285.00 552.00 708.00 5070.00
1989 735.00 813.00 663.00 396.50 343.00 206.50 143.00 131.00 125.00 368.00 523.50 640.00 5087.50
1990 655.50 691.00 539.00 418.00 375.00 235.50 86.00 69.00 105.50 437.00 536.50 900.50 5048.50
1991 749.50 467.50 662.00 509.50 390.00 278.50 140.00 139.00 122.00 381.00 531.00 656.00 5026.00
1992 637.50 508.50 435.50 406.50 264.50 144.00 89.50 113.50 230.00 343.50 569.00 775.50 4517.50
1993 847.50 643.00 542.50 463.50 228.50 185.00 151.00 99.50 193.50 324.50 687.50 733.50 5099.50
1994 601.50 676.50 518.00 416.00 303.50 232.00 158.50 65.00 117.50 421.50 703.50 0.00 z 4213.50
1995 623.50 535.50 560.50 484.00 324.50 208.50 81.50 140.00 70.00 384.00 465.50 673.00 4550.50
1996 728.00 618.50 562.00 435.50 433.00 229.00 118.00 111.00 232.50 418.50 609.00 738.50 5233.50
1997 682.00 589.00 602.00 480.00 252.50 187.50 89.50 40.50 93.50 376.50 466.00 689.50 4548.50
1998 686.00 527.00 556.50 494.50 0.00 z 222.00 115.00 83.50 153.50 346.50 502.50 759.50 4446.50
1999 683.50 619.50 647.50 537.00 439.00 273.50 201.00 113.50 203.50 408.50 511.50 641.00 5279.00
2000 766.50 0.00 z 640.00 441.50 373.00 234.50 122.50 149.50 165.00 383.50 656.50 710.93 a 4643.43
2001 680.50 664.00 593.00 548.50 387.50 270.00 188.00 136.92 a 208.00 401.50 531.50 728.50 5337.92
2002 692.50 621.50 685.50 511.00 416.50 217.00 119.00 161.50 199.50 405.00 498.50 659.00 5186.50
2003 561.00 610.00 553.50 502.50 382.00 173.00 98.50 117.00 155.00 291.50 661.50 699.00 4804.50
2004 739.50 599.00 526.00 405.00 300.00 171.00 80.50 62.50 188.50 365.50 588.50 659.00 4685.00
2005 673.50 596.50 505.00 468.00 251.50 193.50 116.00 107.00 234.00 359.50 605.50 711.00 4821.00
2006 608.50 619.00 629.50 468.00 333.50 173.00 148.00 191.00 189.50 393.50 611.50 728.50 5093.50
2007 784.50 581.00 584.50 504.50 389.50 265.00 54.50 h 114.00 223.00 442.50 618.00 750.00 5256.50
2008 811.50 624.50 695.50 612.50 401.00 332.00 201.00 145.50 189.50 434.50 496.50 822.00 5766.00
2009 749.00 661.00 709.50 548.50 0.00 z 182.50 136.50 131.50 139.00 424.00 565.50 856.50 5103.50
2010 584.50 525.00 574.50 514.00 445.00 283.00 233.00 196.50 167.50 361.00 647.50 674.50 5206.00
2011 711.50 709.00 628.00 615.50 445.50 248.00 170.50 133.00 146.50 386.50 655.50 767.50 5617.00
2012 784.50 624.50 682.50 481.50 381.00 295.00 164.50 115.50 201.50 388.00 539.50 713.00 5371.00
2013 816.00 613.50 602.50 20.50 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 2032.00
Period of Record Statistics
MEAN 769.79 639.72 627.56 502.61 380.22 246.12 162.15 140.47 200.79 387.29 588.99 739.55 5386.42
S.D. 108.91 82.44 79.39 68.95 63.87 49.29 45.72 44.22 55.17 61.29 70.35 74.08 428.94
SKEW 0.77 0.08 -0.33 0.13 -0.17 -0.17 0.05 0.12 -0.31 -0.38 0.12 0.25 0.10
MAX 1096.88 817.50 782.50 658.00 528.50 381.50 287.00 261.50 336.00 516.00 816.00 925.00 6425.50
MIN 561.00 440.00 402.50 327.00 224.23 95.50 49.00 40.50 57.00 169.50 427.76 567.50 4467.00
NO YRS 119 116 119 120 118 119 119 118 116 120 119 117 95