WILLAPA HARBOR, WASHINGTON

Monthly Total Growing Degree Days

(459291)

Base Temperature = 40 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 197912
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
1895 0.00 z 0.00 z 217.00 307.00 445.00 603.50 714.00 686.50 439.00 528.50 155.00 0.00 z 4095.50
1896 133.50 184.00 126.50 172.50 363.50 595.50 783.00 0.00 z 0.00 z 0.00 z 200.00 213.00 2771.50
1897 79.00 101.50 63.50 393.50 579.50 565.50 631.50 779.50 553.50 407.00 136.00 124.00 4414.00
1898 57.00 133.00 115.50 258.00 454.00 567.50 670.00 658.50 636.00 372.50 144.50 88.35 a 4154.85
1899 101.61 d 87.50 93.00 214.50 265.50 429.11 b 666.00 597.50 632.00 347.00 371.00 147.50 3952.22
1900 161.00 98.00 f 344.00 373.50 455.18 a 567.50 726.50 647.50 550.00 356.00 226.00 217.00 4624.18
1901 60.00 75.00 127.50 175.00 353.40 a 428.50 541.00 679.00 505.00 539.50 276.00 117.50 3877.40
1902 91.00 160.50 123.00 62.00 v 458.50 521.00 636.50 672.50 566.00 471.00 175.50 94.50 3970.00
1903 134.50 75.00 135.50 180.50 382.91 d 554.50 611.00 651.00 e 487.00 477.83 b 203.00 96.50 3989.24
1904 72.00 28.00 65.50 350.00 360.00 502.00 731.00 50.50 z 687.41 a 558.52 a 442.00 118.00 3914.43
1905 93.00 a 222.96 a 261.50 l 435.00 430.50 534.50 706.50 674.00 205.00 u 119.50 o 0.00 z 76.39 c 3172.86
1906 128.50 167.50 206.48 c 252.00 f 454.09 d 317.00 j 917.17 b 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1873.75
1907 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 456.00 k 670.63 a 303.50 118.04 e 1092.17
1908 48.00 k 71.46 a 93.50 j 296.50 329.52 d 114.50 u 754.85 a 598.09 b 429.00 i 297.00 f 298.20 e 119.98 d 2468.60
1909 34.50 56.00 a 174.50 188.79 a 431.50 573.50 635.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 2094.29
1910 3.50 r 42.50 h 230.00 234.50 439.00 421.73 d 623.50 348.00 m 514.00 398.00 132.50 f 81.50 h 2860.73
1911 30.00 k 26.00 193.50 148.50 316.50 437.00 634.50 587.93 b 465.50 401.50 189.00 102.50 3502.43
1912 146.50 130.00 149.00 194.50 0.00 z 529.00 664.00 667.00 564.50 289.00 160.00 63.50 3557.00
1913 21.50 53.50 86.50 178.50 315.00 469.00 0.00 z 649.50 556.50 284.50 193.50 91.50 2899.50
1914 101.00 125.50 240.00 296.00 504.00 470.00 634.00 636.00 474.50 462.50 210.00 36.50 4190.00
1915 54.00 103.50 320.33 a 343.50 430.00 530.50 654.50 730.00 579.00 247.50 l 111.50 79.00 3935.83
1916 5.00 165.50 134.00 240.00 293.00 475.50 560.50 615.00 531.92 d 313.00 67.00 14.00 3414.42
1917 36.00 59.00 28.00 128.50 g 291.50 379.50 569.00 142.50 x 506.00 353.83 b 264.00 197.00 2683.83
1918 146.50 46.00 98.50 195.50 228.50 499.50 642.50 684.50 673.50 459.00 0.00 z 0.00 z 3674.00
1919 0.00 z 0.00 z 0.00 z 294.50 406.00 508.00 658.50 689.50 595.00 343.00 168.50 106.00 3769.00
1920 98.00 100.00 162.50 174.50 317.00 485.50 660.00 709.50 523.50 342.50 147.00 80.00 3800.00
1921 34.00 78.50 134.00 202.00 333.50 496.00 550.50 612.00 465.00 391.50 175.00 63.00 3535.00
1922 5.00 18.00 31.50 131.50 368.00 532.00 620.00 651.50 592.50 418.50 108.50 70.00 3547.00
1923 76.50 31.50 143.00 297.00 401.50 549.50 690.50 791.00 620.00 436.00 261.00 91.50 4389.00
1924 81.50 155.50 115.50 220.50 459.00 526.50 634.00 626.00 567.50 356.00 153.00 88.00 3983.00
1925 74.50 112.00 122.00 278.50 477.50 523.50 666.50 671.50 592.50 404.00 201.50 189.74 b 4313.74
1926 121.00 204.00 221.50 j 486.43 b 524.50 0.00 z 769.83 a 760.61 c 563.28 a 502.20 a 252.00 f 56.50 m 3931.84
1927 80.50 j 126.00 113.50 h 258.89 c 375.50 624.50 727.50 737.00 623.00 370.50 f 148.00 o 61.47 b 3533.85
1928 154.40 e 110.00 241.50 177.50 g 524.00 525.00 e 553.00 g 665.00 516.00 373.00 181.50 58.68 c 3349.08
1929 9.00 20.00 138.00 165.50 378.50 517.50 673.50 702.00 633.50 450.50 146.50 94.00 3928.50
1930 18.00 97.00 219.00 354.50 329.00 495.00 591.50 720.50 562.00 363.00 198.50 90.00 4038.00
1931 195.96 c 127.56 a 218.00 342.50 537.50 549.50 750.00 692.00 547.50 393.70 a 118.00 69.00 4541.22
1932 51.50 71.50 189.50 287.50 382.50 537.41 a 548.81 d 648.50 578.00 429.50 258.50 65.62 a 4048.85
1933 47.00 27.00 139.50 a 242.00 274.00 492.50 609.00 727.47 a 472.78 c 431.50 231.50 189.62 a 3883.86
1934 167.50 252.50 324.00 445.50 521.50 535.50 612.25 a 697.50 537.50 453.00 251.00 143.50 4941.25
1935 131.50 153.00 55.50 248.28 a 414.50 534.50 626.00 686.50 592.50 378.00 127.50 112.50 4060.28
1936 113.00 33.00 97.50 340.00 0.00 z 0.00 z 689.50 764.00 585.50 527.00 230.00 138.00 3517.50
1937 0.00 72.50 256.50 205.00 442.50 589.00 680.50 693.50 638.00 552.50 268.39 b 170.50 a 4568.89
1938 102.00 115.00 173.00 304.50 377.00 480.00 660.00 530.50 594.00 408.50 158.00 120.50 4023.00
1939 105.00 45.00 174.00 356.50 459.00 499.00 692.00 751.00 609.50 444.00 318.10 a 241.50 4694.60
1940 148.50 165.50 290.00 370.50 534.00 643.50 683.55 a 774.50 668.00 522.72 b 148.00 174.00 5122.77
1941 168.00 211.50 376.00 369.50 438.50 492.00 0.00 z 0.00 z 548.50 463.00 259.50 120.00 3446.50
1942 112.00 104.42 d 161.00 317.50 432.00 545.50 757.00 741.00 598.50 485.00 147.00 126.00 4526.92
1943 27.50 177.50 137.00 331.00 376.50 508.50 641.00 652.00 643.00 421.00 244.50 84.00 4243.50
1944 100.50 92.00 148.50 280.00 425.50 506.50 655.50 675.50 639.00 535.00 199.50 69.00 4326.50
1945 132.50 100.50 117.50 205.00 461.50 519.00 684.00 655.50 535.50 413.50 138.50 109.50 4072.50
1946 85.00 84.00 140.50 239.50 473.50 490.50 663.00 658.50 546.00 291.00 113.00 103.00 3887.50
1947 40.00 170.50 269.00 360.00 516.50 542.50 660.50 654.50 602.00 403.00 176.00 125.00 4519.50
1948 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 625.34 a 642.00 624.50 557.50 357.50 104.50 19.50 2930.84
1949 0.00 77.00 178.00 282.50 461.50 494.50 605.50 644.50 595.50 293.50 322.50 67.50 4022.50
1950 19.50 87.00 89.00 192.00 326.50 553.00 633.50 690.50 549.23 d 296.00 161.50 213.00 3810.73
1951 53.50 101.50 90.50 322.00 419.50 555.50 651.50 639.50 558.00 397.00 171.72 a 41.00 4001.22
1952 48.50 87.50 101.50 257.50 401.50 463.50 648.00 654.00 635.50 536.50 176.79 b 90.00 4100.79
1953 132.00 f 101.50 159.00 253.50 400.86 b 486.00 525.50 f 674.00 461.00 f 466.50 253.00 125.66 c 2920.02
1954 44.36 b 122.50 94.00 202.00 437.00 443.00 556.50 599.50 574.50 407.00 309.50 101.00 3890.86
1955 55.00 60.00 64.00 131.00 311.00 485.00 557.00 621.50 536.50 381.50 152.50 71.50 3426.50
1956 63.55 a 27.00 107.00 347.50 523.00 493.50 723.50 695.00 565.00 351.00 175.50 108.50 4180.05
1957 21.00 88.50 184.00 320.50 498.50 561.00 643.00 664.00 718.50 417.00 184.50 139.50 4440.00
1958 160.50 251.50 163.50 303.00 597.50 677.00 796.50 757.50 610.00 469.50 181.50 222.50 5190.50
1959 128.00 97.00 179.00 301.00 435.50 551.50 705.50 638.60 a 543.00 433.50 214.00 100.50 4327.10
1960 71.50 101.50 186.00 313.00 386.00 535.50 692.00 657.00 589.50 442.50 195.50 105.50 4275.50
1961 215.00 167.50 196.50 227.50 271.50 i 640.00 740.00 762.50 559.50 360.50 121.00 111.00 4101.00
1962 105.00 163.00 126.50 283.50 345.50 492.50 616.00 675.50 615.50 440.50 242.00 165.50 4271.00
1963 41.50 269.50 166.00 276.00 473.00 528.50 647.50 711.50 694.50 465.00 206.50 153.00 4632.50
1964 101.50 93.50 144.50 196.00 356.00 517.00 633.50 668.50 568.00 429.50 130.00 53.00 3891.00
1965 68.50 88.15 a 217.50 274.00 338.00 403.93 b 0.00 z 0.00 z 0.00 z 463.00 0.00 z 27.00 h 1853.08
1966 126.50 70.00 157.00 299.00 428.50 542.00 664.00 713.00 648.00 390.50 195.50 158.00 4392.00
1967 114.00 92.50 87.50 163.00 438.50 667.00 774.00 880.00 702.50 415.50 208.00 88.50 4631.00
1968 97.00 200.50 223.50 220.00 466.00 549.00 750.00 679.50 609.50 375.00 225.00 64.00 4459.00
1969 29.50 43.00 192.50 249.50 531.00 690.00 666.00 647.50 582.00 358.00 183.50 126.00 4298.50
1970 94.00 187.50 178.00 187.00 436.50 646.50 697.00 697.50 504.50 344.00 193.00 54.50 4220.00
1971 106.00 90.00 84.50 232.00 453.00 450.50 683.50 767.50 534.00 356.00 173.00 37.00 3967.00
1972 46.50 98.50 208.50 157.50 501.00 568.00 749.00 777.50 513.00 334.00 180.00 120.50 4254.00
1973 78.50 115.00 145.00 261.00 479.00 540.00 672.00 583.00 618.50 371.00 97.50 117.50 4078.00
1974 84.50 59.00 166.00 270.50 365.00 545.50 651.00 720.00 694.00 406.50 195.50 125.00 4282.50
1975 74.50 73.00 81.50 161.00 431.50 506.50 687.50 617.42 a 626.00 348.00 163.00 116.25 e 3886.17
1976 98.50 58.50 94.00 236.50 449.50 500.69 a 671.00 664.50 627.50 427.50 243.00 115.50 4186.69
1977 67.00 176.00 103.00 305.00 339.00 582.00 676.00 787.00 533.50 352.50 139.50 111.50 4172.00
1978 132.00 202.00 277.50 314.00 487.70 c 679.50 747.00 756.00 621.00 486.50 93.50 44.50 4841.20
1979 13.50 81.50 255.00 309.50 494.28 d 555.00 781.50 797.73 a 681.00 477.00 164.00 141.00 4751.01
Period of Record Statistics
MEAN 84.40 109.60 160.84 267.50 419.41 530.39 669.91 684.46 580.21 416.30 194.94 109.95 4204.60
S.D. 49.06 58.40 71.43 75.45 75.77 62.40 64.93 59.91 60.27 72.45 65.86 48.07 374.13
SKEW 0.27 0.70 0.74 0.37 -0.14 0.41 0.64 0.46 0.07 0.62 1.00 0.62 0.36
MAX 215.00 269.50 376.00 486.43 597.50 690.00 917.17 880.00 718.50 670.63 442.00 241.50 5190.50
MIN 0.00 18.00 28.00 131.00 228.50 379.50 541.00 530.50 439.00 284.50 67.00 14.00 3414.42
NO YRS 76 79 78 79 80 80 79 76 77 78 77 78 58