TIDEWATER FISH HATCHERY, OREGON

Monthly Total Heating Degree Days

(358481)

Base Temperature = 65 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 200208
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
1940 0.00 z 0.00 z 0.00 z 285.00 c 172.00 81.43 b 34.00 4.13 a 2.50 o 187.00 545.00 593.50 1902.06
1941 585.00 441.00 377.00 361.50 273.00 147.00 37.00 51.50 129.50 233.00 436.50 608.00 3680.00
1942 707.00 571.50 551.00 393.50 310.50 191.50 33.00 16.00 0.00 z 0.00 z 0.00 z 0.00 z 2774.00
1943 0.00 z 0.00 z 180.00 s 353.00 342.11 c 209.50 78.50 66.00 47.50 0.00 z 0.00 z 0.00 z 1096.61
1944 707.50 597.00 577.00 444.00 327.50 225.50 80.00 90.50 84.00 199.00 567.00 769.50 4668.50
1945 671.00 557.00 627.50 486.00 299.50 194.50 75.50 92.00 166.00 301.50 531.00 644.00 4645.50
1946 666.50 576.00 552.50 432.00 248.50 186.50 78.00 86.80 a 149.00 405.50 611.25 b 690.78 a 4683.33
1947 829.00 505.12 c 452.50 336.50 236.00 174.00 78.07 d 89.00 132.41 a 321.50 513.50 529.00 f 3667.61
1948 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 76.98 a 56.00 123.75 b 337.50 578.00 847.00 2019.23
1949 1021.00 621.50 527.50 367.50 b 255.00 156.00 111.08 a 73.50 129.83 a 417.00 411.21 a 727.00 4818.12
1950 988.00 632.00 626.20 a 472.24 a 358.10 b 179.00 44.90 b 45.98 a 127.50 369.00 504.00 482.00 4828.92
1951 735.50 577.50 730.00 388.00 283.50 139.50 79.50 84.00 178.97 a 348.00 533.00 787.00 4864.47
1952 822.02 a 655.50 673.50 423.50 312.50 241.00 76.97 b 85.77 a 158.04 b 263.50 c 736.03 a 708.00 5156.32
1953 239.00 q 508.00 499.21 b 376.00 330.00 f 296.90 a 100.50 46.00 97.50 276.00 430.00 575.50 3205.60
1954 701.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 367.00 661.33 a 1729.83
1955 681.50 632.07 a 668.50 597.00 432.50 246.00 195.50 170.00 187.50 350.30 a 573.62 a 664.00 5398.49
1956 704.50 756.50 623.50 425.00 286.50 239.50 109.50 75.95 a 136.00 398.72 b 570.00 677.00 5002.67
1957 884.50 532.00 533.50 415.86 a 258.00 154.00 91.97 a 74.92 a 50.77 d 303.11 d 562.00 593.50 4454.13
1958 606.16 c 424.50 591.00 405.00 205.50 89.00 14.00 15.50 106.50 253.17 d 516.50 521.50 3748.33
1959 595.20 a 597.00 539.00 251.00 l 330.50 186.21 a 87.00 94.07 b 174.00 205.50 h 485.00 664.50 3752.48
1960 0.00 z 587.77 a 532.00 423.50 380.50 160.50 109.00 101.50 138.33 c 279.57 d 494.00 656.50 3863.18
1961 547.00 485.00 549.00 429.00 358.50 135.50 64.50 42.50 175.00 c 374.30 d 591.50 640.50 4392.30
1962 720.00 546.50 621.00 396.00 432.50 229.50 138.00 75.00 103.00 269.00 438.50 599.50 4568.50
1963 817.00 336.50 566.50 508.50 164.50 n 225.00 133.50 70.50 43.50 256.00 479.50 622.00 4058.50
1964 654.50 579.50 590.55 a 494.50 394.73 a 218.00 96.00 92.00 156.00 265.00 572.00 688.50 4801.28
1965 702.15 a 527.00 487.00 403.00 390.00 221.00 85.50 2.50 z 120.00 180.32 a 415.50 740.50 4271.97
1966 642.50 564.50 568.00 388.00 315.50 169.50 95.00 60.97 a 57.41 a 281.00 456.00 588.50 4186.88
1967 626.50 524.50 621.00 554.00 294.50 120.00 38.00 11.00 25.00 241.00 443.00 699.00 4197.50
1968 670.50 385.00 460.00 479.50 317.00 155.50 56.50 74.50 96.21 a 309.00 465.00 719.00 4187.71
1969 817.00 658.00 518.00 440.00 213.90 a 120.50 100.50 90.50 127.50 311.50 471.50 588.50 4457.40
1970 606.00 432.96 a 526.00 548.00 297.50 150.00 93.00 80.60 a 196.00 353.00 503.00 714.50 4500.56
1971 697.00 558.50 654.00 486.00 339.00 259.00 106.50 25.00 135.50 348.00 516.00 748.50 4873.00
1972 745.50 548.00 463.50 528.50 271.50 162.00 52.00 62.00 191.00 325.50 460.00 802.50 4612.00
1973 730.50 452.00 566.50 416.00 294.00 180.50 107.50 126.00 113.50 302.00 569.50 521.32 a 4379.32
1974 768.00 563.00 531.00 426.00 367.50 189.00 102.00 66.00 53.50 268.50 480.00 588.00 4402.50
1975 618.00 570.50 594.00 546.00 317.50 205.50 86.50 99.00 61.00 336.00 547.00 614.50 4595.50
1976 639.50 598.50 596.00 495.50 305.00 261.50 94.00 83.50 62.50 264.50 432.22 c 645.50 4478.22
1977 683.50 473.00 582.50 399.00 393.00 143.50 103.50 28.00 144.50 242.50 513.10 a 562.00 4268.10
1978 559.00 464.00 378.00 434.50 327.50 108.50 80.00 47.50 110.50 175.00 611.50 778.00 4074.00
1979 827.00 598.50 407.50 392.50 259.00 178.50 50.00 26.00 27.00 206.50 528.00 550.50 4051.00
1980 745.03 a 452.50 547.00 388.50 338.50 237.00 70.50 109.50 86.00 254.00 438.00 579.50 4246.03
1981 561.50 465.00 487.00 398.00 325.50 164.50 72.50 34.62 a 86.50 301.22 a 455.00 572.50 3923.83
1982 737.50 562.00 562.50 515.50 277.00 162.00 94.50 47.50 87.50 286.00 574.00 678.00 4584.00
1983 596.00 484.00 461.50 428.50 291.50 163.00 9.62 b 0.00 z 91.50 254.50 446.00 740.00 3966.12
1984 563.50 475.50 423.00 451.00 337.50 265.50 99.50 40.00 113.79 a 327.50 527.00 866.00 4489.79
1985 809.00 710.00 741.00 568.00 446.50 153.00 17.50 51.00 134.00 279.00 681.00 770.00 5360.00
1986 509.00 482.50 332.50 416.00 270.00 96.00 92.50 24.00 158.00 208.00 397.00 593.00 3578.50
1987 644.00 469.00 470.50 320.50 224.00 134.50 100.50 51.00 103.50 188.50 414.00 704.50 3824.50
1988 689.00 452.00 526.00 401.50 330.50 200.00 85.00 71.00 124.00 189.50 495.50 658.00 4222.00
1989 648.50 712.50 547.50 271.00 293.50 153.50 98.00 60.50 70.50 291.50 475.00 631.00 4253.00
1990 620.00 596.50 445.00 334.00 320.50 166.00 27.50 16.00 24.50 309.00 527.50 887.50 4274.00
1991 707.50 379.00 560.00 500.50 453.50 222.50 55.50 40.50 53.50 284.00 503.00 643.50 4403.00
1992 623.00 403.50 358.50 304.00 163.00 97.50 22.50 28.50 109.50 229.50 424.50 673.00 3437.00
1993 687.50 538.50 373.00 368.00 149.50 109.00 80.00 24.00 79.50 204.00 580.50 648.00 3841.50
1994 507.00 537.00 425.50 304.50 226.50 169.50 44.50 5.50 27.50 247.00 576.00 589.00 3659.50
1995 499.00 365.50 449.50 400.50 231.00 154.50 19.00 35.00 33.50 247.00 0.00 z 0.00 z 2434.50
1996 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1997 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1998 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 185.50 52.00 48.50 110.00 145.00 p 286.50 k 433.00 n 396.00
1999 324.00 p 574.00 a 589.00 c 276.00 m 239.50 k 186.50 g 36.50 v 5.50 z 75.50 q 207.00 k 180.00 p 96.00 z 1163.00
2000 252.00 r 537.62 c 577.12 a 380.36 b 260.00 f 178.20 e 76.50 l 73.50 k 0.00 z 0.00 z 0.00 z 0.00 z 1673.29
2001 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
2002 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 77.50 k 59.50 116.50 0.00 z 0.00 z 0.00 z 0.00 z 176.00
Period of Record Statistics
MEAN 688.71 533.96 534.03 424.07 305.35 177.53 76.74 61.51 107.57 281.77 508.90 663.76 4397.00
S.D. 109.93 88.85 90.75 72.97 68.58 47.95 34.20 33.40 46.73 60.17 72.39 88.74 453.43
SKEW 0.80 0.06 -0.13 0.24 0.01 0.19 0.33 0.52 -0.08 0.20 0.59 0.47 0.01
MAX 1021.00 756.50 741.00 597.00 453.50 296.90 195.50 170.00 196.00 417.00 736.03 887.50 5398.49
MIN 499.00 336.50 332.50 271.00 149.50 81.43 9.62 4.13 24.50 175.00 367.00 482.00 3437.00
NO YRS 51 54 54 54 52 56 57 55 54 52 53 52 43