MUD MOUNTAIN DAM, WASHINGTON

Monthly Total Growing Degree Days

(455704)

Base Temperature = 40 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
1939 8.00 k 2.50 110.50 266.50 405.50 421.03 a 687.00 725.50 522.50 346.50 268.00 133.50 3889.03
1940 92.50 59.50 182.50 262.00 499.32 c 586.50 668.00 682.00 595.00 398.00 68.50 94.00 4187.82
1941 107.50 138.50 279.00 306.00 388.50 494.00 796.00 666.50 433.00 322.00 183.50 47.53 a 4162.03
1942 70.78 a 35.50 97.00 236.00 348.50 474.50 747.00 729.00 551.00 395.00 87.00 51.00 3822.28
1943 13.50 115.00 83.50 268.00 294.50 428.50 656.00 607.00 582.00 322.50 177.50 48.00 3596.00
1944 48.50 16.50 58.50 185.00 348.00 458.50 670.50 616.50 585.50 471.50 113.00 51.50 3623.50
1945 55.50 40.50 47.00 100.50 413.00 441.50 713.50 662.00 451.00 364.50 78.50 55.00 3422.50
1946 29.50 41.00 60.00 186.96 b 454.50 431.00 651.50 664.50 511.11 c 187.66 c 64.00 53.00 3334.74
1947 16.50 74.50 183.50 269.00 489.00 460.50 622.00 598.50 538.00 321.50 72.50 78.00 3723.50
1948 21.00 11.00 51.50 107.00 305.87 a 573.50 570.00 579.50 455.50 304.00 37.50 2.00 3018.37
1949 1.00 51.00 97.50 213.00 422.50 433.00 589.00 457.00 g 549.50 177.50 303.50 31.00 2868.50
1950 10.00 29.50 35.50 123.00 280.50 475.56 c 668.00 718.00 532.50 235.08 a 96.21 a 120.00 3323.85
1951 15.00 43.50 33.58 a 252.50 352.00 547.50 697.00 642.00 589.14 a 313.00 121.00 10.33 a 3616.55
1952 21.00 41.50 44.00 228.00 368.00 397.00 698.53 a 681.00 604.00 489.00 114.00 50.50 3736.53
1953 111.50 46.00 79.00 178.00 343.50 388.00 648.42 a 661.50 558.50 364.50 171.00 56.00 3605.92
1954 18.00 79.00 48.00 104.48 a 368.00 370.00 514.17 b 523.00 466.00 295.00 251.50 56.00 3093.16
1955 11.50 4.00 11.00 74.00 234.50 432.50 508.50 583.26 d 456.00 304.00 76.00 33.00 2728.26
1956 23.00 4.00 62.00 233.00 460.50 426.00 714.00 640.31 b 504.50 241.50 121.00 66.50 3496.31
1957 7.00 35.50 80.00 198.00 453.50 521.00 589.00 573.00 651.50 299.50 90.50 68.50 3567.00
1958 87.00 150.50 72.00 191.00 552.50 618.50 849.50 765.50 516.50 397.50 126.00 125.00 4451.50
1959 72.50 10.00 64.00 212.00 312.00 495.00 716.00 618.00 413.00 314.00 136.00 41.50 3404.00
1960 36.00 36.00 107.50 193.00 284.00 493.50 742.00 598.50 478.00 350.00 89.50 51.50 3459.50
1961 162.50 68.50 119.00 144.00 329.50 617.00 732.00 789.00 439.00 256.50 80.00 38.00 3775.00
1962 70.00 114.00 58.00 227.00 212.50 459.00 608.50 612.50 536.50 321.50 156.00 82.00 3457.50
1963 17.50 190.00 73.50 127.50 377.00 433.50 539.50 618.00 617.50 360.00 119.50 70.00 3543.50
1964 23.50 22.50 60.00 82.00 264.00 416.00 597.00 573.00 428.50 415.50 63.00 27.00 2972.00
1965 57.50 44.50 138.50 200.50 257.00 479.50 710.50 681.50 438.50 421.00 209.50 50.50 3689.00
1966 35.00 38.00 117.50 206.50 347.50 447.00 579.50 638.00 549.00 267.50 138.50 89.00 3453.00
1967 42.00 34.00 41.00 70.00 344.50 607.00 685.50 857.00 652.50 343.50 147.00 58.50 3882.50
1968 85.50 179.50 174.50 134.00 354.00 480.00 712.00 611.50 510.00 268.50 118.50 16.50 3644.50
1969 10.50 11.50 119.50 175.50 452.50 612.50 630.00 579.50 516.00 246.00 145.50 69.50 3568.50
1970 36.00 136.50 91.00 76.00 339.00 600.00 666.00 635.50 427.00 271.00 177.50 16.50 3472.00
1971 45.00 63.00 15.00 156.50 355.00 352.50 701.00 780.50 456.50 241.00 70.50 8.00 3244.50
1972 10.00 45.00 126.00 112.50 433.00 476.50 695.50 714.00 412.50 227.50 116.50 70.00 3439.00
1973 33.00 82.50 64.00 185.50 399.50 478.50 678.50 552.00 541.50 274.00 46.50 88.00 3423.50
1974 40.50 16.00 89.50 148.00 248.00 526.00 622.00 722.50 665.00 354.00 103.50 68.00 3603.00
1975 27.50 14.00 32.50 49.50 355.50 450.50 697.50 575.50 572.50 264.50 119.50 74.50 3233.50
1976 60.00 25.50 39.50 183.50 368.50 415.50 633.00 566.50 550.00 307.00 194.50 67.00 3410.50
1977 37.50 140.00 46.50 265.50 263.50 523.50 609.00 802.50 440.00 272.50 92.00 53.50 3546.00
1978 66.50 87.50 165.50 168.00 318.50 618.50 685.00 663.50 450.50 378.00 60.00 6.50 3668.00
1979 4.00 32.50 162.50 180.50 409.50 526.50 701.50 655.00 569.50 351.00 94.00 116.50 3803.00
1980 11.50 72.00 52.00 253.97 a 323.00 419.50 648.50 602.90 b 494.00 354.50 140.50 128.00 3500.36
1981 160.50 86.50 168.50 193.50 328.50 419.50 603.00 784.50 529.50 225.00 174.44 c 45.50 3718.94
1982 26.35 a 52.00 55.00 116.00 327.00 599.00 595.00 663.50 520.00 307.50 66.00 0.00 z 3327.35
1983 104.50 112.50 168.00 217.00 449.00 462.00 573.50 658.00 427.50 257.50 134.00 1.00 3564.50
1984 90.50 63.50 133.00 127.00 250.50 404.00 641.50 652.50 438.00 185.50 80.00 12.00 3078.00
1985 23.00 19.50 35.00 198.50 357.00 507.50 825.00 680.00 426.50 254.50 29.50 18.50 3374.50
1986 133.50 93.00 183.00 143.00 359.50 608.00 549.00 803.00 435.00 372.50 81.50 51.00 3812.00
1987 54.00 129.00 149.00 274.50 411.50 558.00 631.50 698.50 589.50 436.50 177.00 55.50 4164.50
1988 45.00 91.00 103.00 224.00 354.00 469.00 670.50 671.50 536.50 375.00 117.00 97.00 3753.50
1989 39.50 9.00 76.50 303.00 373.00 591.00 634.00 650.00 616.50 318.00 124.00 78.00 3812.50
1990 47.00 40.50 169.50 269.00 342.50 494.00 780.50 753.00 605.00 273.50 127.50 18.00 3920.00
1991 30.50 175.50 56.50 167.50 313.00 412.50 702.50 757.00 587.00 344.00 138.50 71.30 a 3755.80
1992 146.50 191.50 234.00 303.00 493.50 619.00 693.00 730.50 510.00 337.00 92.00 9.00 4359.00
1993 31.50 91.50 161.00 196.50 505.50 499.00 551.50 681.00 589.00 409.50 38.00 78.00 3832.00
1994 98.00 28.00 204.50 264.00 450.50 485.50 760.50 720.50 634.00 307.00 30.00 77.50 4060.00
1995 114.00 113.00 166.00 214.50 471.50 541.00 738.00 601.50 649.50 247.50 224.00 68.50 4149.00
1996 67.50 131.00 125.00 257.00 253.00 483.50 771.50 717.00 446.00 318.00 106.00 40.50 3716.00
1997 65.50 54.50 123.00 182.50 492.00 482.50 662.50 777.50 601.00 288.50 223.00 69.00 4021.50
1998 93.50 104.00 150.50 203.00 350.00 499.50 781.50 733.50 639.00 346.00 120.50 56.50 4077.50
1999 21.50 8.50 66.00 160.50 232.50 401.50 577.50 622.14 b 468.00 245.50 142.76 a 15.50 b 2961.90
2000 0.00 a 6.50 10.50 0.00 z 243.50 410.00 511.50 547.50 394.50 194.00 11.50 15.00 2344.50
2001 22.00 6.00 53.00 89.00 257.00 318.50 499.50 563.50 402.00 165.50 89.50 0.00 2465.50
2002 11.00 7.50 0.00 38.50 148.50 345.00 577.50 654.50 515.50 220.00 160.00 45.50 2723.50
2003 97.00 24.00 110.50 127.50 315.00 564.50 758.50 727.50 600.50 386.00 10.34 a 6.00 3727.34
2004 17.50 2.50 69.50 171.00 340.50 473.00 648.00 647.00 341.50 209.50 19.00 17.00 2956.00
2005 66.00 23.50 98.50 91.50 299.00 316.50 547.50 604.00 318.50 204.50 18.00 51.50 2639.00
2006 26.00 41.50 83.00 216.00 419.50 625.00 c 469.50 k 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1411.00
Period of Record Statistics
MEAN 50.39 61.58 97.42 183.30 356.86 483.74 658.69 664.62 516.87 308.01 116.01 53.31 3561.03
S.D. 39.87 50.76 57.85 65.87 81.53 78.64 78.81 73.27 80.37 72.20 61.32 32.76 406.50
SKEW 1.04 0.93 0.72 -0.19 0.09 0.15 0.03 0.38 -0.15 0.17 0.66 0.38 -0.42
MAX 162.50 191.50 279.00 306.00 552.50 625.00 849.50 857.00 665.00 489.00 303.50 133.50 4451.50
MIN 0.00 2.50 0.00 38.50 148.50 316.50 499.50 523.00 318.50 165.50 10.34 0.00 2465.50
NO YRS 67 68 68 67 68 68 67 66 67 67 67 66 63