CONCRETE PPL FISH STN, WASHINGTON

Monthly Total Heating Degree Days

(451679)

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 706.28 a 638.81 a 635.50 b 406.50 206.67 a 152.00 50.63 a 53.98 b 200.69 a 379.23 a 746.50 866.34 c 5043.14
1932 929.45 c 796.94 c 636.07 d 432.00 291.50 151.00 129.00 75.36 b 87.00 g 389.10 b 598.93 b 985.11 d 5414.47
1933 730.50 f 894.25 d 692.91 d 364.50 f 313.00 f 221.00 113.09 d 23.00 f 231.00 f 375.50 f 610.50 835.28 d 3367.03
1934 776.15 d 555.33 d 476.00 269.00 232.50 a 155.69 a 105.29 b 53.70 c 237.69 d 365.05 b 591.00 829.50 4646.91
1935 769.50 f 631.17 d 768.44 e 516.72 a 338.50 176.38 a 114.70 a 90.93 a 147.50 469.13 a 752.07 a 735.22 a 4740.76
1936 810.81 b 1012.50 762.71 b 399.31 a 206.00 100.50 43.29 b 21.18 a 185.36 b 300.70 a 652.22 c 802.12 c 5296.71
1937 1204.98 d 805.50 543.61 c 525.00 c 277.89 c 111.50 42.76 b 82.67 a 123.00 274.02 c 614.50 795.50 5400.92
1938 674.50 f 520.50 f 633.71 e 367.80 e 243.02 c 102.69 d 50.08 e 47.53 a 70.20 e 242.50 h 715.00 780.17 a 3010.20
1939 779.17 e 797.46 b 632.92 a 357.00 246.93 b 173.04 b 61.00 36.17 a 115.38 d 369.42 a 492.86 b 649.97 a 4711.31
1940 726.50 634.00 517.00 308.00 139.50 86.50 24.28 a 24.59 b 20.50 f 212.00 h 696.60 e 708.50 3865.47
1941 690.55 b 500.37 a 374.50 304.00 258.33 a 125.69 a 12.29 b 30.00 224.48 a 338.00 532.22 c 771.68 c 4162.12
1942 773.45 a 653.00 594.17 a 319.14 a 248.00 172.24 a 20.00 31.00 99.50 292.50 681.00 803.42 a 4687.41
1943 1033.16 b 583.50 650.00 366.72 a 315.68 a 163.50 38.50 59.42 a 69.50 343.58 a 515.69 a 786.22 b 4925.48
1944 775.52 a 675.50 651.50 370.50 268.67 a 120.00 a 32.50 53.22 a 113.50 188.00 589.80 e 752.94 e 4591.64
1945 707.32 a 643.00 675.50 521.50 215.40 b 154.14 a 36.17 a 27.50 136.50 f 347.95 b 750.00 b 828.96 d 4907.43
1946 800.66 b 682.00 629.00 441.50 138.98 a 140.50 32.55 a 38.50 107.07 a 490.83 a 762.86 b 853.53 a 5117.98
1947 970.62 b 595.78 a 478.95 a 343.50 187.66 c 127.50 30.50 33.21 c 113.50 377.50 639.44 c 760.02 a 4658.18
1948 835.89 c 783.00 634.50 509.46 b 316.31 d 56.00 53.50 52.18 a 181.73 d 370.00 690.00 a 948.37 d 5430.96
1949 1075.18 a 823.50 602.00 386.38 a 124.00 e 148.00 86.00 51.50 86.38 a 483.60 a 422.59 a 881.78 d 5170.91
1950 1318.50 768.00 733.67 a 513.00 351.50 99.50 26.00 h 40.50 122.50 454.00 676.50 673.73 a 5751.40
1951 909.85 a 708.40 c 746.00 332.50 238.00 85.00 25.83 a 63.55 a 112.76 a 410.50 648.10 a 705.50 f 4280.50
1952 661.50 j 705.13 b 679.00 385.50 232.50 154.50 g 34.50 n 58.00 107.00 258.00 649.82 b 804.34 c 3879.29
1953 710.93 a 660.00 647.00 475.86 a 283.50 210.00 52.50 41.00 132.32 b 310.52 a 538.50 721.27 a 4783.40
1954 988.50 647.00 651.00 549.00 241.00 211.00 111.00 97.50 126.00 383.50 469.66 a 776.50 5251.66
1955 817.00 760.50 821.50 552.00 414.88 a 196.55 a 140.00 89.00 161.11 c 375.00 810.52 a 879.37 a 6017.43
1956 822.03 b 837.89 a 698.02 a 314.00 181.35 a 165.00 a 16.53 a 44.84 c 152.59 a 477.00 617.07 a 818.83 b 5145.15
1957 1061.48 b 755.48 a 604.50 369.81 d 156.72 d 97.00 g 39.50 j 49.48 e 49.00 f 372.57 d 587.22 c 742.93 b 4700.20
1958 709.26 b 514.89 a 575.57 a 410.36 b 111.48 e 25.80 e 0.00 e 13.00 h 153.50 f 300.81 d 678.00 e 717.98 c 4044.15
1959 845.86 c 549.00 f 503.00 h 447.60 e 294.50 e 109.80 e 31.50 j 41.00 l 191.90 a 380.50 669.50 761.50 3701.15
1960 907.00 700.00 633.00 444.00 335.50 165.50 43.00 127.50 178.00 375.50 686.00 785.00 5380.00
1961 706.50 663.50 620.00 497.50 302.00 56.00 19.50 10.33 a 200.56 c 444.50 694.14 a 851.98 a 5066.51
1962 860.50 632.50 690.00 362.50 352.50 147.00 79.50 68.00 134.50 335.00 608.00 757.00 5027.00
1963 999.50 528.00 654.50 515.50 0.00 z 225.50 90.13 d 16.00 29.00 f 187.50 j 382.00 l 501.50 j 3029.13
1964 571.00 i 475.50 i 492.00 j 377.00 i 223.50 j 91.00 k 55.00 h 80.50 j 202.50 366.00 729.00 953.00 2250.50
1965 894.72 b 0.00 z 637.50 425.50 0.00 z 0.00 z 70.50 39.50 165.00 293.50 549.50 836.50 3912.22
1966 893.00 701.00 670.00 459.00 312.00 198.00 109.50 73.00 117.50 431.50 626.00 743.50 5334.00
1967 827.50 673.50 739.00 547.00 296.50 73.50 37.00 12.50 58.50 414.50 619.50 888.50 5187.50
1968 895.00 613.00 585.50 529.50 273.00 165.00 45.00 87.00 172.00 469.50 620.50 984.00 5439.00
1969 1142.50 768.50 633.00 500.50 226.50 70.50 86.50 108.50 176.00 423.50 577.00 743.00 5456.00
1970 849.00 554.00 603.50 564.00 310.50 113.00 66.00 42.00 241.50 445.00 662.50 900.00 5351.00
1971 960.50 712.50 790.50 490.00 292.50 240.00 90.50 16.00 212.00 469.00 675.00 969.50 5918.00
1972 1038.50 783.00 679.50 582.50 232.50 168.50 67.50 35.00 274.50 431.50 619.50 946.50 5859.00
1973 902.50 657.00 637.00 481.00 286.00 207.00 72.50 138.00 172.50 468.00 789.50 781.50 5592.50
1974 934.00 746.50 749.50 525.00 442.00 172.00 127.50 69.50 94.00 388.50 637.00 775.00 5660.50
1975 906.50 809.00 751.00 606.00 328.00 224.00 60.50 141.50 126.00 470.50 727.50 852.00 6002.50
1976 817.00 773.50 794.50 517.50 331.50 267.50 106.50 119.00 122.00 397.50 600.00 764.50 5611.00
1977 898.50 579.50 735.50 427.50 385.00 151.50 140.00 64.50 257.00 451.00 764.48 a 869.50 5723.98
1978 839.00 646.50 579.50 486.50 401.00 134.50 74.50 107.50 252.50 368.50 817.50 975.50 5683.00
1979 1048.50 823.00 622.00 513.50 293.50 206.50 101.55 b 68.50 129.00 386.00 701.50 779.00 5672.55
1980 1023.00 739.50 725.00 426.00 348.00 197.00 83.50 119.00 196.00 377.50 619.50 809.50 5663.50
1981 710.50 685.50 578.15 a 573.00 351.50 301.50 139.50 82.67 a 205.50 0.00 z 604.00 847.50 5079.32
1982 978.00 785.00 694.50 580.00 346.00 110.00 134.50 92.50 146.00 408.00 750.00 804.00 5828.50
1983 758.00 630.00 555.00 430.50 258.00 193.00 126.00 43.50 253.50 454.50 623.50 998.00 5323.50
1984 810.00 688.50 587.50 519.00 441.00 220.00 91.00 65.00 233.00 514.00 729.00 988.50 5886.50
1985 900.50 827.50 710.00 505.00 316.00 196.00 19.50 85.50 243.00 510.50 966.50 956.50 6236.50
1986 756.50 731.50 545.50 554.50 342.00 124.50 132.50 21.50 223.00 333.00 655.50 791.50 5211.50
1987 852.50 627.00 614.50 401.00 300.00 157.50 76.50 64.00 125.00 323.50 567.00 865.50 4974.00
1988 846.00 698.50 663.00 488.00 337.00 214.00 106.00 74.50 213.00 321.50 659.50 788.00 5409.00
1989 856.00 890.00 752.00 405.50 360.50 140.00 98.50 81.00 105.00 429.00 618.00 763.00 5498.50
1990 802.50 833.50 635.00 402.00 334.00 200.50 40.00 41.50 87.00 504.50 632.50 1052.00 5565.00
1991 934.50 593.00 711.50 498.50 366.00 232.50 68.50 71.50 127.50 393.00 625.00 749.50 5371.00
1992 760.00 571.00 460.50 406.50 224.50 106.00 66.50 53.00 219.50 377.50 633.00 926.00 4804.00
1993 1031.00 708.00 608.50 481.50 191.50 204.00 134.50 80.00 158.00 303.50 757.00 806.00 5463.50
1994 694.50 777.50 566.50 386.00 268.00 204.50 57.50 31.50 89.50 432.00 800.00 852.00 5159.50
1995 802.50 651.50 627.50 469.00 232.50 147.00 0.00 z 0.00 z 57.50 458.00 585.50 789.50 4820.50
1996 883.00 697.50 641.50 439.00 442.00 197.50 83.50 74.50 230.50 462.50 713.00 963.50 5828.00
1997 870.50 690.00 710.50 0.00 z 254.00 205.00 90.50 0.00 z 119.50 447.00 537.00 785.50 4709.50
1998 845.50 622.50 602.00 463.50 302.00 138.00 27.00 41.50 110.00 388.50 593.00 894.00 5027.50
1999 781.50 737.50 704.00 524.50 441.00 257.00 110.50 49.00 184.50 421.00 585.00 790.50 5586.00
2000 846.00 664.50 677.50 413.00 352.00 181.50 0.00 z 0.00 z 181.00 0.00 z 0.00 z 831.00 4146.50
2001 771.00 724.00 630.00 526.50 347.50 236.00 109.00 55.50 164.50 482.00 594.00 838.00 5478.00
2002 832.50 712.00 792.50 537.00 393.00 165.00 87.00 72.00 179.50 437.00 537.50 755.00 5500.00
2003 683.00 666.00 651.00 497.00 358.00 135.00 45.50 26.50 135.50 346.00 720.50 809.50 5073.50
2004 874.00 659.00 571.00 0.00 z 277.00 128.00 38.00 33.00 211.50 393.00 617.50 745.00 4547.00
2005 817.50 634.50 552.00 448.00 236.50 201.00 69.50 39.50 208.50 373.00 707.00 821.50 5108.50
2006 740.00 731.00 668.50 483.00 331.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 2953.50
Period of Record Statistics
MEAN 867.04 700.05 645.75 455.91 290.44 162.23 72.72 60.13 159.91 394.49 651.13 828.04 5327.30
S.D. 125.73 94.67 82.45 77.46 76.34 53.89 37.55 30.48 54.77 66.41 88.93 84.32 415.64
SKEW 1.05 0.43 -0.43 -0.32 -0.14 -0.10 0.14 0.70 0.12 -0.44 0.43 0.59 -0.30
MAX 1318.50 1012.50 821.50 606.00 442.00 301.50 140.00 141.50 274.50 514.00 966.50 1052.00 6236.50
MIN 683.00 500.37 374.50 269.00 111.48 25.80 0.00 10.33 57.50 188.00 422.59 649.97 4162.12
NO YRS 71 72 74 72 72 71 68 68 68 69 73 73 55