SAPPHO 8 E, WASHINGTON

Monthly Total Heating Degree Days

(457319)

Base Temperature = 65 F

File last updated on Jul 25, 2006
*** Note *** Provisional Data *** After Year/Month 199706
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 54.50 j 0.00 z 133.50 h 46.00 z 239.50 t 645.00 j 0.00
1949 736.00 j 477.50 l 428.00 k 259.50 o 135.00 s 0.00 z 155.00 g 190.17 e 88.00 j 244.50 q 276.50 m 373.50 q 190.17
1950 906.00 i 816.48 c 484.00 l 312.00 o 333.00 k 99.50 n 46.50 q 63.50 g 67.50 n 0.00 z 0.00 z 0.00 z 816.48
1951 0.00 z 0.00 z 0.00 z 140.50 p 0.00 z 66.00 s 107.90 e 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 107.90
1952 0.00 z 0.00 z 77.00 z 337.50 k 82.50 z 84.50 t 86.05 b 87.00 83.40 e 0.00 z 336.00 r 464.00 m 256.45
1953 481.50 j 197.00 t 129.50 y 101.50 y 302.50 k 323.00 h 91.00 88.02 c 0.00 z 0.00 z 235.50 r 171.00 x 179.02
1954 619.00 k 342.50 o 288.50 t 338.50 o 283.00 l 310.00 h 186.00 g 230.00 267.00 e 340.50 i 557.78 c 753.96 c 1808.74
1955 838.19 e 807.50 911.50 727.50 565.50 318.50 235.82 c 181.00 268.50 471.89 d 614.00 g 546.50 l 5325.90
1956 612.00 j 627.00 i 564.50 j 386.00 f 289.33 d 258.50 h 129.00 124.50 242.22 c 381.50 j 405.00 l 522.50 l 785.06
1957 844.50 f 613.00 f 496.50 j 531.60 e 247.50 h 189.50 j 257.19 d 205.78 b 118.50 385.50 f 421.50 l 498.50 j 1113.06
1958 521.50 h 581.58 d 733.87 e 574.80 e 239.39 d 121.80 e 37.00 113.00 193.00 f 317.50 g 513.50 j 334.00 o 2401.44
1959 701.00 f 728.00 d 610.00 f 570.58 d 465.53 b 292.00 148.00 204.50 313.50 464.50 683.08 d 380.00 o 3869.69
1960 692.00 f 746.75 e 729.53 a 547.50 d 535.00 310.00 157.00 220.00 254.00 440.50 699.00 815.50 5454.78
1961 723.85 a 434.00 j 730.00 622.00 435.50 188.00 77.50 53.50 192.00 g 543.00 763.00 841.00 4977.35
1962 839.50 694.50 790.00 550.00 532.50 317.00 199.00 182.50 212.50 432.40 b 625.50 710.50 6085.90
1963 918.38 c 534.50 739.00 599.00 421.60 a 275.17 a 227.50 111.08 a 108.00 g 248.00 o 352.00 p 440.50 m 3826.23
1964 555.50 j 727.79 c 747.62 a 605.00 453.00 317.00 227.00 246.40 b 271.00 407.81 b 749.48 a 980.24 b 5732.34
1965 0.00 z 700.00 644.59 b 557.50 505.30 a 279.00 128.50 113.50 261.50 380.00 607.20 e 855.50 5032.59
1966 850.00 707.00 725.50 536.50 441.50 327.00 190.65 a 154.50 183.00 486.50 520.00 f 0.00 z 4602.15
1967 606.00 h 690.00 816.00 670.71 b 440.95 b 124.44 c 129.50 37.50 132.50 463.50 633.50 629.50 j 4138.61
1968 829.77 a 432.00 i 451.00 j 631.50 422.00 304.00 124.00 177.00 251.00 555.50 672.50 949.78 b 4917.04
1969 1134.27 c 816.50 714.00 599.50 336.87 a 145.34 a 187.60 b 227.00 243.62 a 467.50 596.11 c 776.79 e 6245.10
1970 844.00 583.33 a 664.43 a 699.50 488.00 223.50 197.50 149.50 325.18 b 523.50 729.50 927.13 d 6355.08
1971 666.50 i 746.50 848.88 a 589.50 436.00 391.50 170.00 118.50 321.00 496.50 714.00 968.00 5800.38
1972 1010.50 790.77 a 701.00 567.50 f 303.50 274.50 138.00 94.50 302.50 458.50 670.00 924.32 a 5668.08
1973 898.50 681.00 735.98 b 563.50 0.00 z 0.00 z 0.00 z 243.00 212.68 b 299.00 m 261.00 t 0.00 z 3334.66
1974 0.00 z 727.00 709.00 593.00 564.20 a 200.00 f 172.00 k 126.00 g 138.50 440.89 d 644.00 763.00 4579.59
1975 876.50 744.50 732.00 614.50 366.00 248.57 b 109.00 199.50 137.50 295.00 k 661.67 c 593.50 f 4689.74
1976 753.76 d 744.00 805.47 b 515.50 387.50 a 296.00 156.50 170.50 145.50 363.70 c 566.90 a 654.58 e 5559.90
1977 348.50 r 359.50 j 719.64 c 505.00 485.50 243.10 a 212.00 92.50 300.50 465.52 a 595.00 f 800.50 3824.26
1978 752.50 634.00 606.00 553.00 463.00 189.00 103.50 0.00 z 286.00 387.00 799.50 951.50 5725.00
1979 972.00 797.00 643.00 601.00 397.00 295.86 a 169.00 148.50 169.50 367.50 681.00 728.00 5969.36
1980 981.50 693.31 b 0.00 z 500.50 0.00 z 0.00 z 0.00 z 0.00 z 251.00 414.00 563.50 f 755.00 3595.31
1981 708.00 635.00 583.50 547.76 a 211.00 l 0.00 z 145.70 a 97.00 240.50 461.00 618.00 0.00 z 4036.46
1982 869.03 a 679.00 708.50 644.00 438.50 157.00 187.00 162.00 199.00 461.50 758.50 817.00 6081.03
1983 695.00 602.50 578.00 501.50 297.50 273.00 177.00 129.50 283.00 535.00 613.00 0.00 z 4685.00
1984 722.50 617.50 604.00 580.50 493.50 324.00 165.00 161.00 270.50 533.00 688.50 912.00 6072.00
1985 833.50 738.50 735.00 542.00 388.50 263.50 62.50 121.50 275.00 511.00 928.50 389.00 p 5399.50
1986 701.00 708.50 564.00 610.50 407.00 143.50 173.50 31.00 228.00 186.50 k 652.50 769.00 4988.50
1987 814.00 617.00 631.00 498.00 389.00 245.69 a 179.00 90.50 127.00 338.50 229.50 q 871.00 4800.69
1988 858.00 648.50 687.50 517.00 422.00 309.50 190.50 148.50 230.50 395.50 716.50 816.00 5940.00
1989 881.50 902.50 826.50 464.50 334.50 188.50 201.50 140.50 118.00 466.50 631.50 304.00 q 5156.00
1990 778.00 768.00 628.00 468.50 395.50 298.00 88.50 98.50 125.00 510.00 618.00 632.50 i 4776.00
1991 819.50 507.00 701.00 526.50 413.50 299.00 137.00 117.50 123.50 431.50 600.50 716.50 5393.00
1992 691.00 588.00 480.00 288.00 j 271.50 123.00 97.00 66.50 244.50 401.00 685.50 940.50 4588.50
1993 975.50 715.50 629.00 540.50 249.00 234.00 190.00 95.00 158.50 306.50 741.50 793.50 5628.50
1994 669.00 738.50 589.00 467.00 339.00 295.50 128.00 134.50 136.00 469.00 709.50 749.50 5424.50
1995 644.00 578.00 614.50 494.00 267.50 215.50 92.00 190.00 87.00 433.50 359.50 j 376.50 p 3616.00
1996 517.50 k 650.00 610.00 456.50 499.00 315.50 72.00 m 22.00 o 277.50 490.50 658.50 529.00 m 3957.50
1997 839.58 a 659.50 729.50 577.00 345.50 280.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 3431.58
Period of Record Statistics
MEAN 829.75 693.47 693.32 562.36 408.35 255.32 151.46 141.59 215.01 450.69 677.32 828.47 5886.76
S.D. 112.13 84.83 88.57 62.72 86.38 68.25 51.08 55.26 70.66 59.36 74.66 91.74 331.68
SKEW 0.53 -0.02 0.08 0.49 -0.18 -0.58 -0.10 0.07 -0.29 -0.36 1.13 0.13 -0.29
MAX 1134.27 902.50 911.50 727.50 565.50 391.50 257.19 246.40 325.18 555.50 928.50 980.24 6355.08
MIN 644.00 507.00 480.00 456.50 239.39 121.80 37.00 31.00 83.40 306.50 557.78 654.58 5393.00
NO YRS 31 39 38 40 39 37 41 42 41 35 32 26 11