FORKS 1 E, WASHINGTON

Monthly Total Heating Degree Days

(452914)

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 621.00 637.00 637.50 472.50 326.00 264.00 134.50 141.00 256.00 437.74 b 699.00 e 824.94 d 5451.19
1932 892.00 566.00 h 650.50 530.00 439.00 239.00 251.00 166.00 225.00 e 405.50 565.50 877.00 5240.50
1933 869.00 835.50 725.50 606.50 525.00 350.00 239.50 114.50 326.50 444.50 563.00 710.50 6310.00
1934 668.16 c 541.00 524.70 d 356.67 c 350.50 279.50 221.00 113.67 d 269.00 385.50 529.62 d 748.50 4987.81
1935 793.00 611.50 807.00 573.00 423.50 257.00 198.63 d 182.26 b 123.50 i 66.50 z 678.33 c 692.50 5216.72
1936 741.00 899.50 706.28 a 0.00 z 334.00 215.89 b 179.00 105.00 264.00 319.82 a 606.00 724.50 5094.99
1937 1080.00 769.00 639.78 b 615.00 423.50 218.28 a 164.50 187.60 b 220.50 329.00 592.50 708.50 5948.16
1938 756.50 686.00 701.50 523.50 398.50 265.00 158.50 195.00 147.50 427.00 369.50 n 772.00 5031.00
1939 732.50 754.50 688.50 507.50 417.47 a 322.50 231.90 e 129.00 232.50 455.00 480.50 614.00 5565.87
1940 694.52 e 622.50 592.58 e 459.00 325.00 212.50 171.05 c 107.00 157.50 344.50 707.50 700.50 5094.15
1941 62.50 z 579.48 e 499.62 a 348.50 f 393.91 b 144.50 m 110.50 146.73 a 288.10 a 402.00 570.00 e 796.38 b 3786.72
1942 773.00 506.50 h 734.59 c 365.50 i 389.00 281.00 97.28 b 85.50 196.67 c 361.00 310.00 p 235.00 v 2918.03
1943 941.88 a 621.38 b 737.00 490.34 a 376.00 f 316.67 c 138.50 f 182.68 c 179.00 391.63 a 577.00 763.00 5200.59
1944 745.50 702.50 708.00 546.00 412.30 a 301.80 e 149.50 163.30 c 182.22 c 315.50 572.50 615.00 g 4799.13
1945 720.75 a 648.50 742.28 d 486.50 f 341.50 292.50 117.50 f 175.84 b 281.00 404.03 a 708.50 801.50 5116.41
1946 772.00 689.23 b 703.00 589.50 338.00 310.86 a 167.40 a 164.62 b 263.89 c 555.93 a 737.07 a 810.28 b 6101.78
1947 913.50 593.00 558.00 b 475.00 334.00 259.82 b 181.35 a 198.92 a 223.00 463.97 a 681.43 b 724.88 a 5606.87
1948 814.50 788.70 a 744.00 659.50 443.00 174.50 185.50 199.00 281.00 461.00 719.00 932.07 a 6401.76
1949 1043.00 801.00 664.50 542.50 365.00 319.50 239.00 204.00 208.20 e 535.00 467.00 818.00 6206.70
1950 1184.00 723.50 744.50 628.00 513.50 222.93 a 160.00 144.00 246.50 488.00 667.00 627.00 6348.93
1951 842.00 690.50 823.00 494.00 411.00 234.00 154.50 180.00 222.41 a 464.00 632.00 868.00 6015.41
1952 881.00 727.00 737.00 559.00 412.00 370.00 179.00 166.00 189.50 275.00 652.50 725.00 5873.00
1953 669.00 678.50 709.50 566.00 425.00 356.00 171.00 152.00 208.00 371.50 560.50 696.50 5563.50
1954 911.00 671.00 784.50 665.50 438.50 347.50 269.50 213.50 215.50 426.00 483.00 757.00 6182.50
1955 782.50 749.00 825.50 690.00 542.50 317.50 273.50 241.50 281.50 439.00 746.00 856.50 6745.00
1956 814.00 842.50 773.00 480.50 329.00 323.00 159.00 144.00 225.00 493.00 637.00 740.00 5960.00
1957 948.50 733.00 683.50 506.50 342.50 254.50 222.00 192.50 112.50 433.00 630.00 703.00 5761.50
1958 659.35 e 520.50 679.00 552.50 275.50 132.50 61.00 129.68 a 174.50 g 408.50 684.00 613.00 4715.53
1959 777.00 695.50 698.50 538.00 375.00 f 276.00 146.50 212.50 288.00 443.00 626.00 757.00 5458.00
1960 809.21 b 700.50 700.00 548.00 486.00 302.50 130.50 g 194.50 236.50 386.50 637.00 748.13 a 5748.84
1961 660.00 617.00 682.50 591.50 429.50 190.50 99.00 59.00 275.50 514.00 688.00 819.12 e 5625.62
1962 785.00 619.50 771.50 530.50 531.28 b 327.00 197.50 175.00 221.50 397.00 595.00 668.00 5818.78
1963 892.50 486.00 702.00 550.00 401.50 280.50 198.00 131.00 124.00 388.00 635.50 683.00 5472.00
1964 756.00 692.00 706.00 615.50 475.50 267.50 205.00 183.00 270.00 402.00 716.00 891.00 6179.50
1965 829.50 649.50 624.50 510.50 488.50 302.50 148.50 128.00 293.00 351.00 555.00 814.50 5695.00
1966 774.50 651.00 679.93 a 540.00 441.00 304.50 214.86 b 170.50 181.50 458.00 596.00 670.50 5682.30
1967 720.00 635.50 777.50 642.50 431.93 a 166.00 134.50 57.50 134.50 391.50 594.31 a 783.00 5468.74
1968 792.00 567.00 594.00 606.50 399.50 302.50 131.50 179.50 228.50 474.50 604.00 893.83 d 5773.33
1969 1061.75 a 752.50 633.50 562.00 329.50 142.00 195.00 217.52 a 243.00 458.50 564.00 659.00 5818.27
1970 779.00 537.50 642.50 641.50 457.50 237.00 e 178.50 169.50 296.00 471.50 650.00 818.00 5878.50
1971 830.00 659.00 781.00 570.00 422.00 373.00 171.00 117.69 d 296.00 483.00 633.50 888.00 6224.19
1972 724.50 f 698.90 d 661.50 680.50 307.50 255.00 152.50 60.93 b 340.50 472.50 615.50 824.37 d 5069.70
1973 815.50 610.50 665.00 517.50 363.00 255.50 162.00 205.50 181.00 464.00 730.00 709.00 5678.50
1974 825.50 667.50 682.50 523.00 490.00 246.00 198.50 112.50 113.50 374.00 582.00 686.50 5501.50
1975 815.00 704.00 720.50 621.50 388.00 298.00 114.00 176.50 127.00 470.50 659.00 774.00 5868.00
1976 725.00 712.00 765.00 531.00 414.50 314.00 160.00 167.00 138.00 373.00 567.00 694.50 5561.00
1977 799.50 535.00 701.00 461.00 431.50 228.62 a 176.50 83.50 240.00 427.00 695.00 0.00 z 4778.62
1978 692.00 580.00 566.00 500.00 397.00 145.50 94.00 135.00 221.00 331.00 721.50 905.00 5288.00
1979 922.50 707.50 567.50 499.50 317.00 260.50 110.50 71.82 a 89.00 315.50 602.50 654.50 5118.32
1980 919.50 581.50 663.50 448.00 382.00 284.50 134.00 160.50 176.00 323.00 563.50 674.50 5310.50
1981 636.50 580.50 543.00 492.00 376.50 307.00 169.00 96.50 185.50 425.50 573.00 788.00 5173.00
1982 867.50 685.00 693.00 627.00 406.00 173.00 184.00 120.00 156.00 427.00 735.50 821.50 5895.50
1983 662.00 582.50 561.00 464.00 283.50 226.50 130.00 63.00 217.50 461.00 602.00 955.00 5208.00
1984 737.50 616.50 561.50 520.00 410.50 257.00 127.00 121.50 234.00 497.50 648.00 882.50 5613.50
1985 818.00 705.00 720.00 501.50 361.00 240.50 45.00 123.00 261.50 482.00 877.00 861.50 5996.00
1986 637.00 677.50 544.50 565.00 365.50 165.00 202.50 61.50 252.50 357.00 627.00 698.50 5153.50
1987 753.00 568.50 574.00 420.00 329.00 191.50 146.00 86.00 127.50 309.50 521.00 838.50 4864.50
1988 798.50 586.00 633.50 459.00 352.00 253.00 137.00 105.50 221.50 320.50 619.50 742.50 5228.50
1989 796.50 837.50 723.50 401.00 335.00 172.00 166.00 111.50 117.50 428.50 584.50 710.00 5383.50
1990 739.00 728.50 579.00 435.00 378.50 234.00 67.50 64.50 121.50 502.00 605.50 926.50 5381.50
1991 812.00 484.00 693.00 507.50 412.50 288.50 130.50 119.00 143.00 432.00 573.50 692.00 5287.50
1992 656.50 535.50 461.50 440.00 245.00 144.50 98.00 96.50 240.50 390.50 605.00 855.50 4769.00
1993 912.50 665.50 589.00 491.00 256.50 205.00 173.50 113.00 188.00 336.00 721.50 774.50 5426.00
1994 656.50 718.50 577.50 454.50 328.00 258.50 129.50 97.00 135.50 467.00 737.00 774.00 5333.50
1995 709.50 577.50 615.50 494.50 300.50 236.00 105.00 164.50 106.50 437.50 520.50 741.00 5008.50
1996 787.50 662.00 589.50 451.00 450.50 272.00 97.00 77.50 244.50 458.50 671.50 852.50 5614.00
1997 734.00 627.00 685.00 509.50 255.00 233.50 113.00 66.00 132.00 420.00 541.50 721.50 5038.00
1998 751.50 598.00 602.50 514.00 323.00 230.00 105.00 95.00 178.00 403.50 596.00 803.00 5199.50
1999 750.50 693.50 718.50 525.00 475.50 293.00 162.00 96.00 200.00 469.00 592.00 738.00 5713.00
2000 837.00 657.50 643.00 448.50 418.00 201.00 130.50 149.50 217.00 453.63 a 713.50 787.92 a 5657.05
2001 726.50 695.00 635.00 548.00 393.50 286.50 195.50 136.50 224.00 489.50 596.50 783.00 5709.50
2002 766.50 671.50 754.00 528.62 a 441.00 193.00 114.00 141.00 220.18 b 462.00 564.00 727.00 5582.80
2003 623.50 646.00 614.00 544.00 379.50 161.50 105.50 122.00 164.50 372.50 737.50 783.00 5253.50
2004 751.50 639.00 574.00 396.50 322.00 181.00 78.50 38.00 232.00 404.00 594.00 720.50 4931.00
2005 746.00 628.50 539.00 475.50 254.50 220.00 88.50 63.50 256.00 420.50 681.50 763.00 5136.50
2006 666.00 673.00 687.50 508.50 354.00 199.29 b 96.50 k 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 3088.29
Period of Record Statistics
MEAN 791.58 661.01 666.08 528.31 387.29 253.60 156.27 136.28 210.87 419.35 627.61 768.91 5600.71
S.D. 108.84 82.65 79.73 69.46 67.43 57.77 48.73 47.56 58.08 59.04 73.84 79.40 422.65
SKEW 1.08 0.32 -0.25 0.22 0.05 -0.13 0.15 -0.03 -0.15 -0.27 0.42 0.26 0.30
MAX 1184.00 899.50 825.50 690.00 542.50 373.00 273.50 241.50 340.50 555.93 877.00 955.00 6745.00
MIN 621.00 484.00 461.50 356.67 245.00 132.50 45.00 38.00 89.00 275.00 467.00 613.00 4769.00
NO YRS 74 74 76 72 74 75 72 75 73 74 73 72 61