NORTHPORT, WASHINGTON

Monthly Total Growing Degree Days

(455946)

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
1920 0.00 0.00 42.50 171.00 412.00 591.00 974.50 861.00 526.00 215.00 22.00 0.00 3815.00
1921 0.00 2.00 39.00 160.50 534.00 741.50 854.50 906.50 425.00 276.50 36.50 0.00 3976.00
1922 0.00 0.00 10.00 196.00 467.00 800.50 932.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 2406.00
1923 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
1924 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
1925 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
1926 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
1927 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 288.50 13.50 0.50 302.50
1928 0.00 0.50 88.50 242.00 655.50 684.50 963.50 830.00 609.50 187.00 23.00 0.00 4284.00
1929 0.00 0.00 67.50 200.00 539.50 653.00 930.00 949.00 523.00 261.50 4.50 0.00 4128.00
1930 0.00 9.00 78.50 390.50 483.00 637.50 927.50 969.50 631.00 192.00 18.00 0.00 4336.50
1931 0.50 2.50 86.00 281.00 600.50 700.00 966.00 902.00 538.00 233.50 29.00 0.00 4339.00
1932 0.00 0.00 35.50 275.00 496.50 748.50 847.00 896.00 591.50 256.50 24.50 14.00 4185.00
1933 0.00 0.00 26.00 234.50 422.50 696.50 894.50 912.50 447.50 249.00 38.50 7.50 3929.00
1934 4.98 c 3.00 114.00 487.00 611.00 742.50 952.50 931.50 515.00 329.00 84.00 0.00 4774.48
1935 0.00 0.00 3.50 154.00 469.50 633.00 864.50 739.00 518.00 166.00 0.00 0.00 3547.50
1936 0.00 0.00 22.50 392.00 709.00 790.00 1012.50 966.50 596.50 347.50 0.00 6.50 4843.00
1937 0.00 0.00 65.00 240.00 596.50 769.50 1013.50 809.00 685.00 364.00 39.50 3.50 4585.50
1938 0.00 0.00 50.00 325.00 561.50 870.50 1057.50 870.00 843.00 333.00 16.50 0.00 4927.00
1939 0.00 0.00 92.50 376.50 620.50 639.50 965.00 961.50 604.50 304.50 31.50 7.50 4603.50
1940 0.00 0.00 153.50 343.00 648.50 837.50 1004.50 915.00 781.50 382.50 13.00 0.00 5079.00
1941 0.00 2.00 212.00 415.00 540.00 742.00 1046.00 868.00 463.50 278.50 48.00 14.50 4629.50
1942 0.00 0.00 72.00 352.50 490.50 632.00 934.00 957.00 691.00 354.50 7.50 0.00 4491.00
1943 0.00 0.00 46.00 364.50 437.50 616.00 947.00 849.50 661.50 315.50 19.00 12.00 4268.50
1944 0.00 3.50 48.50 333.50 580.50 739.00 954.00 877.50 697.00 380.00 57.50 0.50 4671.50
1945 2.00 0.00 z 0.00 z 0.00 z 0.00 z 694.50 971.50 949.00 567.50 332.00 13.50 3.50 3533.50
1946 0.00 2.00 68.50 302.00 601.50 625.00 931.00 892.50 583.00 188.50 1.00 0.00 z 4195.00
1947 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
1948 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 822.00 852.50 812.50 590.00 222.37 e 6.50 0.00 3305.87
1949 0.00 3.00 37.50 367.24 a 648.00 682.50 933.50 889.00 657.00 171.50 65.00 4.00 4458.24
1950 0.00 2.00 25.00 210.00 473.00 729.50 967.00 964.00 693.50 202.50 16.50 0.00 4283.00
1951 0.00 0.00 37.00 285.00 565.00 703.00 976.50 887.50 607.00 240.50 7.50 4.00 4313.00
1952 0.00 0.00 48.50 330.50 562.50 696.00 933.00 896.50 719.50 406.00 9.00 0.00 4601.50
1953 7.50 1.00 102.82 a 223.00 501.00 634.50 913.00 910.00 627.50 299.50 62.50 3.50 4285.82
1954 0.00 12.50 30.00 177.50 544.50 595.50 821.00 713.00 504.50 169.00 95.00 0.00 3662.50
1955 0.00 0.00 3.00 120.50 379.00 694.50 822.50 777.50 521.50 256.27 a 26.00 0.00 3600.77
1956 0.00 0.00 35.50 0.00 z 327.50 r 598.39 b 943.00 851.00 563.50 191.50 10.50 1.00 3194.39
1957 0.00 0.00 a 29.50 256.00 632.00 642.50 745.50 585.00 526.50 0.00 z 0.00 z 0.00 z 3417.00
1958 0.00 z 0.00 z 0.00 z 0.00 z 766.65 e 837.00 957.00 1033.00 509.00 311.50 39.00 2.30 d 4455.45
1959 2.77 c 1.00 41.33 a 309.44 c 462.13 d 707.50 959.50 777.00 507.00 213.00 8.79 a 0.00 g 3989.47
1960 0.00 0.00 89.50 228.00 443.00 710.89 b 1050.50 762.08 a 529.50 286.00 10.34 a 0.00 b 4109.82
1961 6.50 7.00 i 101.78 a 226.00 544.00 873.50 1024.50 1059.68 a 519.00 147.54 d 7.00 0.00 j 4509.50
1962 0.00 h 0.00 k 33.14 b 348.50 493.50 697.50 874.72 a 487.50 l 637.78 c 265.64 b 61.00 4.00 f 3411.77
1963 1.00 12.00 92.50 257.50 551.00 755.50 873.88 b 715.50 g 751.07 b 330.15 a 30.58 d 0.00 j 3655.18
1964 0.00 c 1.07 b 15.50 j 220.38 d 300.50 k 693.50 887.50 720.50 463.50 233.50 11.00 0.00 3230.96
1965 0.00 0.50 23.50 315.50 450.50 720.00 970.00 929.00 469.00 339.50 60.50 0.00 4278.00
1966 0.00 4.50 87.00 274.50 596.00 646.50 881.36 b 875.50 749.50 257.00 15.00 2.50 4389.36
1967 0.00 6.00 31.50 185.00 516.00 813.50 959.50 1040.00 811.00 271.50 30.50 0.00 4664.50
1968 0.00 16.50 103.00 234.50 514.00 695.00 961.50 820.50 609.00 208.00 23.50 0.00 4185.50
1969 0.00 0.00 75.00 323.00 639.50 845.00 865.50 856.50 633.50 203.50 46.00 0.00 4487.50
1970 0.00 0.50 66.50 175.00 574.00 840.00 981.00 933.50 479.50 211.00 27.00 0.00 4288.00
1971 0.00 0.00 28.50 270.00 602.50 654.50 910.00 1031.50 517.00 251.50 18.00 0.00 4283.50
1972 1.00 10.00 106.50 172.00 612.50 701.00 846.50 968.00 484.00 239.50 18.50 0.50 4160.00
1973 0.00 4.50 94.00 277.00 577.00 703.50 972.00 927.00 641.00 236.00 6.50 0.00 4438.50
1974 10.00 0.00 57.50 317.50 446.50 844.50 893.50 905.00 643.00 282.50 31.50 0.00 4431.50
1975 0.00 0.00 3.50 219.50 522.50 651.00 1019.50 718.00 610.00 246.50 57.50 8.02 b 4056.02
1976 0.00 4.50 21.50 272.50 572.00 623.50 878.00 818.50 706.00 272.05 b 32.31 d 0.00 4200.86
1977 0.00 2.00 44.00 375.00 447.50 819.50 888.50 987.50 523.00 225.50 19.00 0.00 4331.50
1978 0.00 1.00 127.00 319.50 487.50 767.00 972.00 844.00 565.50 265.00 10.00 0.00 4358.50
1979 0.00 3.00 82.00 250.00 560.00 774.00 988.50 977.50 684.50 341.00 10.00 1.00 4671.50
1980 0.00 a 0.00 41.69 b 224.50 h 0.00 z 0.00 z 0.00 z 376.50 n 545.00 250.50 63.00 2.50 902.69
1981 2.50 23.50 160.50 241.00 527.00 562.50 b 847.00 932.50 559.80 e 115.50 16.00 0.00 n 3987.80
1982 0.00 0.00 39.50 148.50 451.00 794.00 802.50 821.00 560.50 208.50 0.00 0.00 3825.50
1983 0.00 9.00 131.00 297.50 607.50 686.50 0.00 z 945.00 480.50 211.00 33.50 0.00 3401.50
1984 0.00 0.00 55.00 240.50 386.00 630.50 950.50 897.50 456.00 178.50 0.50 0.00 3795.00
1985 0.00 0.00 17.88 e 80.50 q 578.50 707.50 1083.00 820.47 a 435.50 136.50 2.00 0.00 3781.35
1986 0.00 3.50 79.50 199.50 548.50 804.50 789.50 1013.70 a 493.00 288.00 10.00 0.00 4229.70
1987 0.00 0.00 97.00 399.00 611.00 792.00 888.00 838.00 713.00 255.50 74.50 1.50 4669.50
1988 0.00 0.00 41.50 355.00 560.50 711.50 905.00 901.50 586.50 349.50 27.00 0.50 4438.50
1989 3.00 0.00 40.50 324.50 502.00 771.50 942.00 835.00 625.00 196.50 36.50 0.00 4276.50
1990 2.00 0.50 106.50 379.00 474.00 644.00 947.00 904.00 729.50 162.50 56.50 0.00 4405.50
1991 0.00 11.50 36.50 265.50 477.50 618.00 917.00 938.50 671.00 242.50 6.50 0.00 4184.50
1992 0.00 17.50 190.00 331.00 609.50 837.50 890.50 886.00 518.00 248.00 23.00 0.00 4551.00
1993 0.00 0.00 47.50 241.50 691.00 676.00 727.00 793.50 609.50 287.50 1.00 0.00 4074.50
1994 0.00 0.00 114.00 333.00 563.50 682.50 982.50 0.00 z 696.00 253.50 1.50 0.00 3626.50
1995 0.00 17.00 66.50 208.00 585.50 680.00 895.50 769.50 695.00 205.50 31.50 7.50 4161.50
1996 0.00 2.50 38.50 230.50 368.00 661.00 945.50 874.00 500.00 196.50 24.31 a 0.00 3840.81
1997 2.00 0.00 36.00 171.00 553.00 637.00 849.50 927.50 639.00 217.50 29.00 0.00 4061.50
1998 0.00 5.00 101.00 277.00 597.00 696.00 1044.00 966.00 749.00 219.50 50.00 1.00 4705.50
1999 0.00 1.00 70.00 214.50 417.47 a 633.00 797.50 956.00 539.50 218.00 71.00 0.00 3917.97
2000 0.00 0.00 53.00 303.50 442.50 651.50 848.50 843.00 511.00 203.00 0.00 0.00 3856.00
2001 0.00 0.00 68.50 175.50 531.00 601.50 891.50 944.50 664.50 159.50 56.00 0.00 a 4092.50
2002 0.50 4.00 41.00 232.50 434.50 737.00 968.50 834.50 579.50 196.50 31.00 5.00 4064.50
2003 0.00 0.50 65.50 242.50 478.00 747.50 975.50 961.00 608.00 327.50 12.00 0.00 4418.00
2004 0.00 1.50 136.00 355.00 509.00 727.00 935.50 966.00 558.50 269.50 14.50 0.50 4473.00
2005 0.00 l 0.00 61.00 281.50 571.50 643.00 875.00 871.00 534.50 248.50 1.00 0.00 4087.00
2006 0.00 1.00 53.00 281.00 564.50 778.97 a 632.50 k 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1678.47
Period of Record Statistics
MEAN 0.60 2.74 65.82 273.38 536.84 710.85 925.18 886.97 592.51 251.61 26.38 1.58 4290.22
S.D. 1.75 4.87 41.56 74.29 79.36 75.24 70.60 84.82 93.81 62.30 22.09 3.25 320.96
SKEW 3.64 2.35 1.13 0.27 0.15 0.35 -0.35 -0.69 0.44 0.32 0.99 2.49 -0.09
MAX 10.00 23.50 212.00 487.00 766.65 873.50 1083.00 1059.68 843.00 406.00 95.00 14.50 5079.00
MIN 0.00 0.00 3.00 120.50 368.00 562.50 727.00 585.00 425.00 115.50 0.00 0.00 3547.50
NO YRS 77 76 77 75 76 80 78 75 79 79 79 73 62