LANDSBURG, WASHINGTON

Monthly Total Heating Degree Days

(454486)

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
1931 729.50 642.00 597.27 a 458.00 253.50 207.50 88.00 115.00 234.50 460.50 764.50 858.00 5408.27
1932 922.00 794.00 630.50 474.00 396.50 176.50 178.00 106.71 e 227.50 415.00 564.00 949.50 5834.21
1933 914.50 875.50 687.50 547.50 459.50 244.50 146.00 71.50 311.50 453.00 659.00 705.50 6075.50
1934 690.00 535.00 480.00 333.00 265.05 a 184.50 146.50 99.00 247.50 403.50 536.50 780.00 4700.55
1935 853.00 611.50 767.00 559.50 388.50 66.00 r 0.00 z 126.00 204.00 555.93 a 803.50 799.00 5667.93
1936 779.00 1002.00 748.00 434.50 274.50 163.50 103.85 a 26.00 p 272.78 c 344.50 f 743.00 782.50 5303.63
1937 1192.00 750.50 558.50 545.50 340.00 146.50 102.50 0.00 z 214.00 370.00 596.38 a 715.00 5530.88
1938 806.53 b 679.00 659.50 446.00 345.50 193.50 87.50 169.50 154.00 406.10 a 705.50 783.00 5435.63
1939 732.50 780.89 a 676.50 432.50 323.00 266.00 121.00 97.50 244.66 a 448.50 540.50 679.50 5343.04
1940 724.00 614.00 544.00 389.00 235.60 a 172.00 117.50 108.00 134.50 321.50 661.00 657.50 4678.60
1941 700.50 510.50 443.09 b 393.00 338.00 169.50 g 35.00 112.00 273.50 444.50 594.50 775.00 4619.59
1942 818.50 691.50 633.00 429.00 370.00 241.00 57.00 60.50 195.52 a 408.50 676.50 762.50 5343.52
1943 1026.50 614.00 667.00 407.00 409.50 256.50 98.00 143.50 179.00 446.50 603.50 842.50 5693.50
1944 811.00 736.50 690.50 470.17 a 363.50 218.28 a 77.00 124.00 161.00 359.50 675.00 847.50 5533.95
1945 765.50 675.00 657.00 558.00 293.47 a 248.00 77.50 120.00 288.50 313.00 i 698.00 834.00 5214.97
1946 576.00 i 685.50 682.50 529.50 286.00 253.50 89.00 100.00 188.50 564.00 730.50 839.00 4948.00
1947 946.00 621.00 586.50 439.50 249.50 215.00 111.00 142.00 206.50 433.00 683.00 738.00 5371.00
1948 885.00 794.00 720.23 a 615.00 390.00 144.00 155.50 158.50 288.62 a 353.50 i 722.00 919.00 5791.85
1949 1113.93 a 805.00 644.80 a 489.00 303.91 c 255.00 165.50 177.50 211.50 574.50 499.00 828.50 6068.14
1950 1244.50 780.00 730.50 572.00 472.00 170.50 77.00 119.00 245.50 479.50 679.50 680.50 6250.50
1951 859.00 722.00 799.00 459.00 351.00 161.50 64.00 151.50 179.00 466.00 670.00 901.50 5783.50
1952 921.00 736.50 719.50 480.00 358.00 283.50 82.50 123.50 200.00 386.00 770.50 808.00 5869.00
1953 650.50 687.50 692.00 549.50 381.00 297.50 147.50 115.00 209.00 424.00 592.50 737.00 5483.00
1954 926.00 658.00 763.50 615.00 358.05 a 298.50 246.50 201.00 263.50 517.00 561.50 806.00 6214.55
1955 866.00 760.00 837.50 659.50 453.00 251.00 239.00 188.50 289.50 496.50 827.50 868.00 6736.00
1956 868.00 897.00 761.50 510.00 341.00 299.00 148.00 163.50 290.00 592.50 740.50 824.00 6435.00
1957 1084.50 780.50 713.50 527.50 311.00 224.00 223.00 220.00 183.50 556.45 a 717.50 751.00 6292.45
1958 733.00 534.00 685.00 530.00 243.50 127.00 33.50 92.00 281.00 437.50 729.50 700.50 5126.50
1959 854.00 727.00 695.50 558.00 448.50 228.00 112.00 208.50 312.32 b 481.00 699.83 a 843.00 6167.65
1960 880.50 736.50 710.00 523.50 436.50 243.50 94.00 178.00 272.50 446.50 689.00 858.00 6068.50
1961 681.00 626.50 643.00 564.00 392.00 157.50 69.00 45.50 303.50 524.50 770.50 859.50 5636.50
1962 896.50 683.00 749.00 505.00 486.50 251.00 153.50 143.00 232.50 478.95 a 630.50 781.00 5990.45
1963 1010.60 a 529.50 689.50 567.00 388.00 264.00 188.00 137.50 163.00 414.00 658.50 823.50 5833.10
1964 803.50 751.00 707.50 627.50 459.00 258.50 157.50 180.00 316.50 435.50 799.00 950.50 6446.00
1965 860.50 691.00 675.00 529.00 482.50 229.00 85.00 95.50 341.50 404.00 545.50 887.00 5825.50
1966 852.00 698.00 675.00 524.00 410.00 248.00 157.00 133.50 190.00 510.00 650.00 719.00 5766.50
1967 766.00 686.50 772.00 652.50 392.00 136.50 90.50 33.00 150.50 422.00 632.00 851.00 5584.50
1968 861.50 563.50 591.00 590.00 378.00 234.00 86.00 196.50 249.50 502.00 661.00 949.00 5862.00
1969 1057.50 749.50 686.00 549.00 310.00 128.00 137.50 182.50 213.50 521.50 652.00 757.50 5944.50
1970 853.00 574.00 688.50 637.50 400.50 174.00 106.00 146.50 313.50 517.00 665.50 917.00 5993.00
1971 842.00 736.00 804.50 577.00 391.50 322.50 127.00 54.00 305.00 551.50 681.00 909.00 6301.00
1972 947.50 747.00 647.50 630.50 330.00 230.00 104.00 96.00 322.50 554.50 654.00 950.00 6213.50
1973 908.50 635.00 690.00 555.50 358.00 249.50 106.95 a 229.00 226.00 501.00 785.50 769.00 6013.95
1974 940.00 707.50 724.00 553.00 462.50 208.50 0.00 z 103.00 143.00 460.00 675.00 770.00 5746.50
1975 850.50 731.00 770.00 705.50 464.00 319.00 88.50 178.50 227.50 514.00 708.50 797.50 6354.50
1976 809.50 747.00 775.00 534.00 361.00 279.50 104.50 142.00 129.00 417.50 645.50 767.00 5711.50
1977 996.50 624.00 655.00 444.00 407.50 120.50 84.00 70.00 285.00 391.00 h 747.00 799.50 5233.00
1978 707.50 594.50 561.00 460.00 379.50 115.00 75.00 89.00 253.50 346.50 754.00 939.50 5275.00
1979 1028.50 727.00 573.50 500.00 302.50 206.50 88.50 112.00 159.50 390.00 703.50 697.50 5489.00
1980 972.00 653.00 644.00 428.50 313.62 a 245.50 77.50 198.83 b 225.50 332.00 579.00 730.50 5399.94
1981 674.50 634.67 a 0.00 z 535.00 397.00 272.00 126.50 70.00 261.00 565.50 643.00 841.00 5020.17
1982 888.00 725.50 725.00 603.50 407.50 155.00 161.50 116.50 224.00 492.50 801.50 886.50 6187.00
1983 735.00 552.00 582.50 525.00 329.00 225.50 153.00 67.50 312.00 524.50 610.50 999.50 5616.00
1984 813.00 677.00 602.50 554.50 442.50 250.50 85.50 106.50 268.50 0.00 z 0.00 z 965.50 4766.00
1985 0.00 z 846.50 775.00 525.00 348.00 210.00 36.00 128.00 319.00 548.50 984.50 1069.00 5789.50
1986 698.00 712.00 593.00 594.00 359.50 162.00 180.50 43.00 322.00 456.50 674.00 875.00 5669.50
1987 889.00 621.50 616.00 441.00 335.00 159.50 105.50 81.50 192.00 439.00 581.00 907.50 5368.50
1988 851.00 704.00 688.00 512.50 394.50 248.00 121.50 94.00 269.50 398.50 670.50 843.50 5795.50
1989 833.00 921.00 731.00 434.50 389.00 174.00 133.50 94.50 172.50 514.00 628.50 785.00 5810.50
1990 759.50 781.50 648.00 456.50 367.57 c 200.50 56.00 54.50 138.50 561.50 626.50 1004.00 5654.57
1991 925.00 574.00 731.50 534.00 389.00 274.00 54.50 76.50 187.00 470.00 636.00 747.00 5598.50
1992 741.00 585.50 564.00 399.50 214.50 110.50 58.50 64.00 256.00 471.50 687.00 887.00 5039.00
1993 919.00 723.00 608.00 486.50 184.50 202.00 168.00 101.50 201.50 416.00 819.50 0.00 z 4829.50
1994 740.50 772.00 616.50 449.50 290.00 195.00 65.00 72.00 175.00 504.50 798.50 864.00 5542.50
1995 699.00 654.50 627.50 491.00 278.50 177.50 66.50 183.50 188.50 540.50 569.00 842.00 5318.00
1996 923.50 745.50 690.50 505.00 464.50 247.00 107.50 126.50 339.00 592.50 738.00 899.50 6379.00
1997 0.00 z 715.00 697.50 543.50 245.00 186.00 84.00 39.50 165.00 509.50 568.00 786.50 4539.50
1998 0.00 z 596.50 623.00 0.00 z 337.50 174.50 48.00 0.00 z 158.50 524.00 637.00 881.00 3980.00
1999 773.50 677.00 691.30 a 523.50 441.50 245.00 104.00 47.50 202.00 484.00 587.50 800.83 a 5577.63
2000 836.50 657.50 0.00 z 0.00 z 0.00 z 215.00 106.50 103.16 b 195.54 b 0.00 z 755.36 b 827.18 a 3696.73
2001 769.66 b 702.50 671.00 544.82 b 339.40 b 277.24 a 0.00 z 88.98 d 212.78 c 496.52 a 606.00 781.00 5489.89
2002 832.00 690.00 750.50 546.50 418.00 174.50 53.00 p 97.13 a 196.00 498.00 0.00 z 751.50 4954.13
2003 686.50 710.50 628.00 524.50 360.50 159.50 44.50 47.50 160.50 408.00 742.00 762.00 5234.00
2004 833.00 650.00 587.00 402.50 339.50 139.50 48.50 54.00 269.50 436.50 679.50 766.00 5205.50
2005 780.50 657.50 556.00 501.00 300.00 203.50 84.00 67.00 305.00 424.50 745.00 815.00 5439.00
2006 694.00 737.50 686.50 521.00 353.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 2992.50
Period of Record Statistics
MEAN 850.50 696.25 670.16 516.51 360.44 213.49 108.57 116.42 232.06 469.86 678.35 825.47 5736.63
S.D. 121.87 90.88 74.96 71.24 67.56 51.87 46.62 48.49 57.09 64.27 83.62 83.67 431.80
SKEW 0.84 0.51 -0.40 0.03 -0.26 -0.05 0.82 0.38 0.12 -0.12 0.55 0.40 -0.10
MAX 1244.50 1002.00 837.50 705.50 486.50 322.50 246.50 229.00 341.50 592.50 984.50 1069.00 6736.00
MIN 650.50 510.50 443.09 333.00 184.50 110.50 33.50 33.00 129.00 321.50 499.00 657.50 4678.60
NO YRS 72 76 74 74 75 73 71 72 75 69 73 74 57