OLGA 2 SE, WASHINGTON

Monthly Total Heating Degree Days

(456096)

Base Temperature = 65 F

File last updated on Jul 25, 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
1891 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 112.50 125.50 261.00 0.00 z 563.00 749.50 1811.50
1892 766.50 0.00 z 523.50 531.50 327.00 217.00 215.50 168.50 247.00 425.50 0.00 z 0.00 z 3422.00
1893 880.00 851.00 686.50 615.50 394.00 256.50 179.50 201.00 312.00 524.50 747.50 717.50 6365.50
1894 813.50 746.00 709.00 581.50 430.00 235.00 151.50 105.50 242.00 467.50 581.00 797.50 5860.00
1895 803.00 572.00 588.50 473.50 345.00 190.00 118.50 181.00 304.00 455.00 615.00 737.50 5383.00
1896 773.00 613.50 706.50 609.50 464.50 245.50 131.50 193.50 298.00 452.00 855.00 635.00 5977.50
1897 743.00 651.50 804.50 467.00 323.50 221.00 220.50 102.50 347.50 513.50 712.50 735.00 5842.00
1898 827.00 585.50 723.00 526.00 373.50 244.50 220.50 179.50 266.50 530.00 685.00 796.00 5957.00
1899 818.00 778.50 718.50 528.00 479.50 310.00 192.20 a 306.50 282.00 545.00 490.50 706.00 6154.70
1900 687.00 726.00 598.50 502.00 345.00 230.00 185.00 248.50 304.50 486.00 728.28 a 665.00 5705.78
1901 837.00 675.00 668.00 578.00 359.50 306.00 228.00 143.00 249.00 322.50 506.50 746.00 5618.50
1902 849.00 542.00 689.00 499.50 312.00 205.50 127.50 133.50 f 265.00 389.00 616.50 726.50 5221.50
1903 687.00 711.00 707.32 a 537.00 418.50 203.50 250.58 a 161.00 307.00 511.50 633.50 681.50 5809.40
1904 742.00 756.00 753.50 447.50 383.50 283.00 137.00 165.50 232.00 416.00 513.00 679.00 5508.00
1905 757.00 669.50 514.00 379.50 368.00 251.50 174.12 a 209.00 268.50 570.00 617.50 707.00 5485.62
1906 706.00 593.50 622.00 413.50 362.00 270.50 120.00 152.00 268.00 428.00 616.00 719.50 5271.00
1907 1047.28 a 637.00 678.00 524.50 334.50 257.00 167.40 a 211.50 258.00 404.50 548.00 710.00 5777.68
1908 729.50 691.00 625.00 496.00 411.50 249.50 145.50 181.50 318.00 477.00 509.00 785.00 5618.50
1909 1032.00 644.50 661.50 547.50 437.00 262.00 236.50 229.50 289.00 475.00 624.50 876.50 6315.50
1910 822.00 782.00 599.00 534.50 357.00 318.00 209.50 241.50 277.50 461.50 628.50 677.00 5908.00
1911 904.50 696.50 636.05 c 563.00 419.02 a 290.50 156.00 180.50 289.50 268.50 n 648.00 718.00 5501.57
1912 753.50 627.00 703.00 509.00 326.00 232.50 181.50 197.50 274.00 494.50 578.00 722.00 5598.50
1913 879.00 744.00 722.50 486.50 383.50 241.00 173.00 164.00 271.50 482.50 586.00 673.00 5806.50
1914 653.50 658.50 552.50 450.00 312.50 268.50 172.50 196.00 326.00 363.00 560.00 775.00 5288.00
1915 738.00 573.00 492.50 411.50 319.00 216.00 123.50 107.00 241.50 402.50 646.50 713.50 4984.50
1916 1104.50 723.00 670.50 487.00 417.50 246.50 213.50 190.00 283.50 522.00 680.50 870.50 6409.00
1917 855.00 744.07 a 740.50 527.50 407.00 304.00 210.00 156.00 250.00 456.50 492.00 713.00 5855.57
1918 705.00 709.50 646.00 463.00 395.50 221.50 172.00 169.00 199.50 416.50 569.50 736.50 5403.50
1919 712.00 693.00 645.00 479.48 a 374.00 298.00 212.50 203.00 222.50 559.00 641.50 805.00 5844.98
1920 786.50 699.00 678.00 594.50 440.50 268.50 166.50 149.00 302.00 482.00 546.00 669.00 5781.50
1921 737.00 646.50 667.50 538.50 388.50 237.41 a 229.50 209.00 313.50 424.50 625.50 853.00 5870.41
1922 893.50 768.50 725.00 550.50 386.00 226.50 203.00 196.00 253.00 411.00 655.50 846.50 6115.00
1923 780.00 774.00 684.50 486.00 367.50 248.00 164.50 125.50 226.00 422.00 543.50 733.50 5555.00
1924 763.00 570.16 a 638.00 532.00 324.50 255.50 186.00 204.00 265.00 407.13 a 657.00 859.50 5661.79
1925 726.00 556.00 606.50 435.50 260.00 210.00 89.50 129.00 206.50 515.00 593.50 600.50 4928.00
1926 721.50 508.50 460.50 298.97 a 298.50 139.50 87.50 120.00 255.00 356.50 507.93 a 741.50 4495.90
1927 769.00 594.00 636.00 502.00 380.00 155.00 101.27 a 104.37 a 237.00 429.00 639.00 886.50 5433.13
1928 716.00 650.50 533.00 458.79 a 293.00 201.00 93.00 122.50 260.50 457.50 555.50 749.00 5090.29
1929 965.50 791.00 606.00 528.50 357.50 213.00 114.00 110.00 211.50 385.50 658.50 734.00 5675.00
1930 1100.00 633.50 631.00 425.50 394.00 230.17 a 185.00 115.50 237.50 500.50 634.00 702.00 5788.67
1931 622.00 607.00 611.50 422.00 307.00 243.00 142.50 183.50 246.00 456.50 700.00 737.50 5278.50
1932 882.00 736.50 636.50 485.50 397.50 244.14 a 247.50 199.50 271.03 a 440.00 576.50 873.50 5990.17
1933 849.92 a 822.50 680.50 564.50 452.00 317.00 245.00 158.00 334.00 441.50 595.00 714.00 6173.92
1934 671.50 559.50 528.50 376.00 320.00 217.00 174.50 148.00 261.00 391.50 498.50 725.00 4871.00
1935 818.50 602.00 717.50 514.50 384.50 216.00 202.50 184.00 239.50 514.00 681.00 643.50 5717.50
1936 726.00 975.00 734.50 471.50 343.00 201.00 170.00 149.00 292.50 394.00 634.50 722.50 5813.50
1937 1093.50 736.00 572.00 526.00 361.50 203.00 160.00 170.50 235.00 360.50 568.50 704.50 5691.00
1938 755.00 650.50 624.00 445.50 338.00 207.00 130.50 197.50 193.50 407.00 656.50 719.20 a 5324.20
1939 698.50 744.50 644.00 460.50 331.50 289.00 157.00 122.00 223.50 440.00 482.50 570.40 a 5163.40
1940 682.50 590.50 535.50 394.50 275.90 a 171.00 133.00 119.00 176.50 348.00 691.00 659.00 4776.40
1941 664.50 551.50 465.00 372.00 317.00 183.00 82.50 125.00 255.50 397.50 549.50 736.50 4699.50
1942 762.00 634.50 645.00 453.50 362.00 249.50 118.50 99.00 254.00 409.50 666.50 723.00 5377.00
1943 976.50 608.50 702.50 457.50 417.98 a 263.50 217.50 186.50 204.50 420.50 575.50 744.50 5775.48
1944 727.50 689.00 692.50 487.00 384.50 259.50 162.50 183.00 230.50 344.50 572.00 776.50 5509.00
1945 710.00 635.00 679.50 558.50 334.50 271.00 181.50 152.50 309.00 435.00 671.50 756.00 5694.00
1946 748.00 646.50 663.00 531.00 316.00 246.00 148.00 158.00 256.00 528.50 723.00 804.00 5768.00
1947 908.00 604.00 592.00 457.50 310.50 201.00 138.00 159.00 256.50 439.50 679.50 715.50 5461.00
1948 801.50 789.50 694.00 556.50 401.00 201.50 196.00 197.50 268.00 478.50 672.50 897.00 6153.50
1949 1037.00 784.00 633.00 497.50 340.00 258.00 235.50 194.00 231.72 a 537.00 486.00 823.00 6056.72
1950 1259.50 694.00 712.50 551.00 498.00 216.00 197.50 172.00 269.50 499.50 657.00 628.00 6354.50
1951 849.50 696.00 791.50 480.00 378.50 201.00 159.00 180.32 a 256.50 457.52 b 618.00 880.50 5948.33
1952 860.00 691.00 703.00 519.00 390.50 333.50 200.00 189.00 224.00 382.00 647.00 683.00 5822.00
1953 659.00 657.00 650.50 530.00 366.00 292.00 184.00 135.00 250.00 413.50 536.00 694.50 5367.50
1954 902.00 639.00 729.50 598.50 377.50 320.50 246.50 238.00 254.00 463.50 502.00 720.50 5991.50
1955 784.00 761.00 838.00 618.00 500.00 290.00 271.50 220.00 295.00 486.50 798.50 849.00 6711.50
1956 803.50 842.50 741.50 494.00 321.50 297.50 162.00 187.50 290.00 509.50 675.00 779.00 6103.50
1957 1026.00 766.50 672.00 494.00 320.00 246.50 216.00 175.50 151.00 440.50 620.00 688.50 5816.50
1958 644.00 526.00 610.50 474.50 265.00 135.50 58.50 104.00 211.00 419.00 678.50 673.00 4799.50
1959 784.00 699.50 662.50 511.00 395.25 a 223.00 150.50 209.00 301.00 476.00 678.50 774.50 5864.75
1960 823.50 700.50 695.50 488.50 422.50 279.50 155.50 216.00 297.50 412.00 634.00 743.50 5868.50
1961 672.50 580.00 599.00 511.50 372.00 190.50 131.00 126.50 282.50 495.00 683.00 787.50 5431.00
1962 806.00 640.50 731.00 494.50 437.00 272.50 207.50 210.00 250.00 409.50 568.50 695.00 5722.00
1963 938.50 530.50 637.00 504.50 345.50 262.50 186.00 168.00 187.50 399.00 596.50 706.50 5462.00
1964 728.00 696.00 699.50 573.00 440.50 275.00 207.70 a 188.00 309.50 438.50 694.00 907.00 6156.70
1965 818.50 678.50 663.00 492.50 467.50 259.50 162.50 156.00 305.00 394.50 560.50 779.00 5737.00
1966 771.50 645.50 645.50 482.00 399.00 265.00 222.00 190.00 217.00 489.00 595.00 655.13 a 5576.63
1967 734.50 644.50 686.50 563.50 399.50 207.50 159.50 106.50 205.00 424.50 611.00 778.00 5520.50
1968 797.00 589.50 585.00 530.50 337.00 263.50 138.50 183.00 293.50 471.00 609.50 909.00 5707.00
1969 1071.00 705.50 625.50 519.50 313.50 168.50 170.50 219.00 275.50 472.50 599.50 683.50 5824.00
1970 794.50 578.00 621.00 539.00 411.50 212.00 174.50 190.50 313.00 515.50 643.50 803.50 5796.50
1971 824.50 695.50 724.50 521.50 374.00 324.00 208.00 111.00 292.50 505.00 619.00 887.00 6086.50
1972 936.50 723.00 632.50 607.00 317.50 267.00 160.50 157.00 360.50 531.00 599.00 874.50 6166.00
1973 825.50 647.00 645.00 514.50 380.00 253.50 164.00 243.50 246.50 480.50 711.50 690.00 5801.50
1974 828.50 637.00 635.00 489.00 452.50 257.50 201.50 170.00 178.00 463.50 611.50 684.50 5608.50
1975 818.50 736.00 678.00 585.00 394.00 281.00 163.00 194.00 201.50 449.50 625.00 753.00 5878.50
1976 728.50 702.50 740.00 523.50 385.00 282.00 161.00 199.50 201.00 434.50 582.00 683.00 5622.50
1977 812.00 528.00 649.50 457.00 387.00 246.50 172.00 111.00 282.50 432.50 664.50 754.50 5497.00
1978 703.50 586.00 586.00 446.00 334.00 117.00 113.00 114.00 229.00 378.00 741.50 879.88 a 5227.88
1979 939.50 706.00 556.50 455.50 285.50 208.50 126.67 b 131.00 149.00 379.00 618.50 619.40 e 5175.08
1980 907.00 608.50 648.00 394.14 a 346.00 262.00 182.00 189.50 231.50 377.50 559.00 654.00 5359.14
1981 609.50 607.00 532.00 485.00 364.50 246.00 154.50 120.00 231.50 452.50 0.00 z 725.00 4527.50
1982 821.50 653.00 637.00 531.50 388.50 199.50 182.50 148.50 189.50 400.50 642.00 723.00 5517.00
1983 632.50 533.50 499.00 455.50 266.50 209.50 140.00 123.00 281.00 474.50 541.50 949.12 a 5105.62
1984 701.12 a 597.50 524.00 0.00 z 313.00 257.00 95.50 130.00 249.00 0.00 z 619.50 918.12 a 4404.73
1985 838.50 708.00 667.50 504.00 355.50 231.00 103.50 123.00 246.50 458.00 946.00 832.00 6013.50
1986 594.00 658.52 a 553.00 544.00 369.93 a 187.50 227.00 117.00 252.50 421.00 637.00 708.00 5269.45
1987 774.50 571.00 550.00 418.00 315.00 208.50 152.00 114.50 194.00 353.00 527.50 773.50 4951.50
1988 773.50 624.00 628.00 489.00 341.50 267.50 185.00 130.00 263.50 380.50 568.50 708.00 5359.00
1989 796.00 843.50 672.00 395.50 372.00 188.50 150.00 164.50 179.00 388.00 565.00 698.00 5412.00
1990 718.50 723.50 608.00 436.50 342.00 248.50 103.00 103.00 172.50 462.00 0.00 z 926.00 4843.50
1991 820.50 535.00 669.00 500.50 354.50 252.50 141.00 156.50 200.00 470.50 577.00 647.00 5324.00
1992 626.50 551.50 498.50 395.50 277.00 147.00 130.00 126.00 260.00 373.00 606.50 825.50 4817.00
1993 887.00 677.00 549.00 439.50 227.00 191.00 166.00 138.50 260.00 367.00 695.00 711.50 5308.50
1994 601.00 687.50 537.50 416.00 301.50 236.50 124.50 98.00 186.00 425.50 668.00 709.50 4991.50
1995 672.50 572.50 574.00 463.50 265.50 167.00 100.00 165.50 167.00 436.50 527.50 723.50 4835.00
1996 835.00 672.50 614.50 446.00 403.00 248.00 130.50 125.50 281.00 460.00 692.50 874.00 5782.50
1997 751.00 647.00 654.00 469.50 297.00 227.50 159.50 104.00 176.50 429.50 534.50 707.00 5157.00
1998 749.50 528.00 577.00 464.00 340.00 235.00 148.50 122.50 199.00 404.00 547.00 770.00 5084.50
1999 708.00 619.00 636.50 492.50 415.50 260.50 199.50 155.00 218.00 430.50 530.50 677.50 5343.00
2000 764.50 623.00 620.00 446.50 370.00 216.00 170.00 193.00 248.50 384.00 657.00 756.50 5449.00
2001 682.50 656.50 585.50 475.00 386.00 287.00 204.00 145.00 234.00 436.00 545.00 769.00 5405.50
2002 723.50 639.00 750.00 504.00 402.00 200.00 160.50 155.00 205.50 443.00 502.50 662.00 5347.00
2003 596.50 637.50 565.50 472.00 352.00 135.50 79.50 102.50 158.50 320.50 678.00 699.50 4797.50
2004 763.00 0.00 z 537.00 353.50 303.00 167.50 74.50 95.00 223.00 382.50 592.50 655.00 4146.50
2005 772.00 581.50 518.50 421.00 263.00 232.50 95.50 86.50 226.00 359.00 618.00 738.50 4912.00
2006 653.00 636.50 624.00 415.50 312.50 198.89 c 111.00 j 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 2840.39
Period of Record Statistics
MEAN 795.08 662.54 638.93 490.76 362.39 237.01 165.12 161.11 250.19 440.50 616.47 747.18 5585.26
S.D. 119.36 82.43 73.26 59.03 52.95 43.47 43.64 41.37 43.68 53.17 75.81 77.76 421.79
SKEW 1.10 0.62 -0.16 -0.26 0.13 -0.27 -0.06 0.39 -0.11 0.12 0.92 0.61 -0.18
MAX 1259.50 975.00 838.00 618.00 500.00 333.50 271.50 306.50 360.50 570.00 946.00 949.12 6711.50
MIN 594.00 508.50 460.50 298.97 227.00 117.00 58.50 86.50 149.00 320.50 482.50 570.40 4495.90
NO YRS 115 113 115 114 115 115 115 114 115 112 112 114 107