WILLAPA HARBOR, WASHINGTON

Monthly Total Growing Degree Days

(459291)

Base Temperature = 40 F

File last updated on Jul 25, 2006
*** 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
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 78.63 113.91 151.61 253.16 433.71 547.76 678.70 692.46 598.84 401.55 185.69 106.71 4245.69
S.D. 46.60 59.38 55.10 57.30 67.85 72.95 60.16 66.94 58.41 57.42 52.98 47.72 355.35
SKEW 0.73 1.09 0.29 -0.45 0.08 0.38 0.05 0.75 0.44 0.18 0.59 0.40 0.42
MAX 215.00 269.50 277.50 347.50 597.50 690.00 796.50 880.00 718.50 536.50 322.50 222.50 5190.50
MIN 0.00 27.00 64.00 131.00 311.00 403.93 556.50 583.00 504.50 293.50 93.50 19.50 3426.50
NO YRS 30 31 31 31 30 32 30 31 30 32 31 31 28