STARTUP 1 E, WASHINGTON

Monthly Total Heating Degree Days

(458034)

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
1948 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 473.00 j 906.50 906.50
1949 1101.00 542.50 g 609.50 430.50 279.50 246.96 b 200.00 133.50 202.00 g 593.50 484.80 e 892.80 a 4972.06
1950 1338.50 762.00 727.50 526.50 412.50 162.00 87.00 100.50 127.50 l 519.77 a 690.50 681.48 a 6008.25
1951 288.50 t 141.50 w 727.00 405.50 292.50 117.50 43.00 113.00 154.00 412.00 604.00 836.00 3704.50
1952 872.00 653.00 676.50 439.50 295.57 b 237.50 80.50 76.98 a 166.50 329.50 680.00 728.00 5235.55
1953 601.00 641.00 632.00 466.00 307.00 222.50 117.00 52.18 a 168.50 382.00 487.00 674.00 4750.18
1954 907.50 608.00 719.00 550.00 303.50 276.50 140.50 115.50 153.50 396.00 433.00 675.00 5278.00
1955 767.50 708.00 791.00 564.00 412.50 204.50 157.50 102.00 214.50 407.50 791.00 824.50 5944.50
1956 786.50 850.50 703.00 376.00 236.52 d 32.00 x 49.50 77.50 a 201.00 494.50 683.50 751.50 5210.02
1957 1021.50 727.50 623.00 429.50 219.58 a 118.00 94.50 92.00 89.50 444.50 637.00 665.00 5161.58
1958 626.50 439.50 585.38 a 425.00 158.50 61.50 4.00 26.50 180.00 296.50 661.50 575.50 4040.38
1959 774.00 679.00 633.00 446.00 344.10 a 127.50 58.00 88.00 222.00 405.00 638.50 742.00 5157.10
1960 808.07 a 668.00 625.50 415.00 350.50 180.00 76.98 a 108.50 210.00 363.50 628.50 763.50 5198.05
1961 622.50 562.50 556.00 485.50 300.50 101.50 38.00 19.00 232.00 481.00 718.00 808.50 4925.00
1962 836.00 574.50 684.50 410.00 401.50 193.50 109.00 77.50 139.00 383.00 562.50 715.00 5086.00
1963 977.50 457.00 646.00 494.50 295.00 207.00 100.50 48.00 85.50 324.00 590.50 744.50 4970.00
1964 749.50 706.00 652.00 555.00 369.00 183.00 78.00 115.50 245.00 339.00 724.50 910.50 5627.00
1965 794.50 654.00 618.97 a 433.50 401.00 174.50 45.50 50.00 236.00 294.50 467.00 769.83 a 4939.30
1966 783.50 620.00 601.50 439.50 326.00 157.00 77.00 67.00 104.50 393.00 574.66 a 661.00 4804.66
1967 727.50 617.56 a 705.50 536.50 307.50 79.00 47.00 20.50 76.00 344.00 544.00 793.00 4798.06
1968 767.00 539.00 514.00 512.59 a 295.50 154.82 b 42.88 a 108.00 149.00 421.50 575.00 921.50 5000.79
1969 1022.00 692.00 573.50 450.00 234.00 76.50 82.50 108.50 177.50 441.00 565.00 656.50 5079.00
1970 772.00 523.60 c 614.83 a 558.00 333.00 127.24 a 83.38 b 78.03 b 272.50 429.35 a 582.22 c 841.13 a 5215.29
1971 819.50 672.00 754.00 449.48 a 281.00 235.50 95.50 30.50 249.00 511.00 646.00 890.50 5633.98
1972 937.00 708.00 625.50 594.31 a 280.00 214.50 83.00 65.50 305.50 538.00 628.50 893.00 5872.81
1973 816.50 584.00 637.00 510.00 323.00 223.00 95.00 167.50 188.50 446.50 748.50 692.50 5432.00
1974 892.50 679.00 676.00 506.50 440.72 a 192.50 117.50 60.50 f 100.50 419.00 612.00 697.00 5333.22
1975 834.50 698.00 719.50 637.00 360.00 251.50 70.50 155.50 170.17 a 445.88 a 638.50 765.46 e 5746.52
1976 732.00 730.18 a 740.00 503.65 d 323.50 271.03 a 115.22 a 162.50 158.50 452.50 611.00 696.47 a 5496.55
1977 916.00 514.00 707.00 428.04 b 420.00 157.00 139.50 61.00 265.34 a 451.50 689.50 765.50 5514.38
1978 697.50 b 567.50 548.00 472.50 385.00 0.00 z 89.50 90.00 216.00 412.50 790.34 a 912.00 5180.84
1979 942.83 b 715.00 572.00 509.00 291.73 c 167.07 a 86.50 70.27 a 127.78 c 350.50 619.66 a 670.50 5122.83
1980 973.92 a 634.24 b 649.97 a 406.55 a 348.50 226.00 94.00 127.00 187.50 383.50 555.00 694.50 5280.68
1981 569.88 a 632.00 549.50 527.50 344.50 246.72 a 110.00 62.00 195.50 533.50 546.00 761.57 a 5078.67
1982 883.50 686.50 707.50 668.50 339.50 129.00 116.50 96.50 177.00 396.00 687.50 764.50 5652.50
1983 649.50 524.00 535.50 432.50 263.50 162.50 106.50 40.00 264.00 493.00 542.00 958.42 a 4971.42
1984 732.00 611.00 528.50 493.50 359.00 195.50 95.50 66.50 209.00 520.00 640.86 a 913.00 5364.36
1985 861.00 746.00 690.50 513.50 314.00 191.50 0.00 z 0.00 z 272.00 0.00 z 949.00 968.00 5505.50
1986 595.00 650.50 512.00 565.00 323.43 a 138.62 a 146.50 41.50 254.00 397.00 623.50 771.00 5018.05
1987 794.50 546.50 298.00 n 390.00 292.95 a 170.50 85.50 86.00 160.00 408.00 500.50 812.00 4246.45
1988 767.00 644.50 632.00 441.50 323.00 202.50 109.50 86.50 216.00 331.00 604.50 727.00 5085.00
1989 781.50 878.00 646.50 410.00 322.00 131.50 101.50 83.50 153.00 428.50 582.00 755.50 5273.50
1990 726.50 757.50 576.00 414.00 342.50 194.00 50.00 36.00 118.00 475.50 573.00 989.50 5252.50
1991 830.00 504.50 670.50 488.00 391.00 252.50 55.50 57.50 150.00 449.50 574.50 691.50 5115.00
1992 667.00 503.00 492.00 353.50 234.50 112.50 62.00 51.00 214.50 373.50 605.00 839.50 4508.00
1993 871.50 634.50 561.00 457.50 179.00 157.00 126.50 80.50 168.00 334.00 741.50 819.50 5130.50
1994 687.50 752.00 553.00 411.50 0.00 z 177.00 55.00 0.00 z 118.00 0.00 z 751.50 760.00 4265.50
1995 0.00 z 597.00 568.50 447.50 249.50 169.00 51.00 142.00 80.50 431.00 491.50 685.50 3913.00
1996 804.00 658.00 588.50 399.00 406.50 0.00 z 85.50 77.50 222.00 436.50 659.50 820.50 5157.50
1997 772.50 623.50 634.50 465.00 207.50 172.50 74.50 18.50 94.00 433.00 464.50 709.50 4669.50
1998 733.50 510.00 559.00 459.00 311.50 161.00 34.50 47.00 128.50 383.50 0.00 z 817.50 4145.00
1999 726.00 635.00 642.50 532.00 425.50 234.00 119.00 45.43 b 0.00 z 452.00 535.00 742.50 5088.93
2000 780.00 608.50 637.00 416.79 b 320.00 184.50 106.00 108.00 211.50 0.00 z 713.00 199.00 w 4085.29
2001 0.00 z 337.00 m 606.50 398.00 f 338.00 231.43 b 63.50 g 58.38 a 159.83 a 468.10 a 540.56 c 0.00 z 2402.79
2002 737.00 647.50 739.00 491.00 368.50 157.00 101.50 88.50 199.50 465.50 560.50 690.50 5246.00
2003 553.00 654.50 574.00 470.00 333.00 137.00 50.00 32.00 140.50 318.50 0.00 z 710.50 3973.00
2004 788.50 610.00 528.50 362.50 256.50 112.00 38.00 10.00 192.50 391.50 622.00 707.00 4619.00
2005 711.50 635.00 496.50 402.00 239.00 183.50 50.00 47.00 217.50 319.00 696.50 769.50 4767.00
2006 667.00 679.50 601.00 424.00 300.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 2671.50
Period of Record Statistics
MEAN 798.32 638.43 625.93 470.19 317.77 176.85 85.98 77.22 180.75 417.47 619.38 774.98 5147.83
S.D. 137.96 88.11 71.68 65.84 61.88 50.35 35.71 37.60 55.07 65.88 94.76 92.33 374.51
SKEW 1.16 0.12 0.14 0.76 -0.24 -0.13 0.47 0.42 -0.01 0.24 0.69 0.48 -0.25
MAX 1338.50 878.00 791.00 668.50 440.72 276.50 200.00 167.50 305.50 593.50 949.00 989.50 5944.50
MIN 553.00 439.50 492.00 353.50 158.50 61.50 4.00 10.00 76.00 294.50 433.00 575.50 4040.38
NO YRS 55 55 57 57 57 54 55 54 54 54 55 56 41