SHELTON, WASHINGTON

Monthly Total Growing Degree Days

(457584)

Base Temperature = 40 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 199904
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
1931 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 545.17 a 326.03 b 95.00 22.50 988.71
1932 38.00 68.50 180.50 298.50 456.00 675.00 b 615.87 a 733.67 a 615.00 414.50 205.34 a 55.00 4355.88
1933 34.00 19.00 100.23 a 241.03 a 369.00 557.07 a 753.30 a 139.00 y 609.50 412.00 178.80 e 0.00 z 3273.94
1934 216.50 147.00 303.50 436.61 b 630.00 620.00 c 692.52 c 772.42 a 577.50 404.60 b 203.00 59.93 a 5063.58
1935 74.50 78.62 b 44.00 216.43 b 484.00 606.21 a 772.86 b 743.00 633.00 325.00 84.50 81.00 4143.11
1936 70.00 22.00 116.52 b 299.50 k 571.00 652.50 b 725.18 c 816.00 542.50 425.50 112.00 114.00 4167.20
1937 0.00 42.00 210.00 323.79 a 438.50 527.00 f 826.15 a 722.96 c 611.00 446.50 200.00 119.50 3940.41
1938 60.00 76.00 133.50 340.50 515.78 b 648.00 804.21 e 723.00 701.50 352.00 106.50 107.00 4567.99
1939 101.00 32.00 162.50 381.50 491.50 577.50 b 753.50 775.50 609.00 379.00 209.50 157.50 4630.00
1940 100.50 117.00 250.50 373.50 583.00 701.50 747.00 768.00 674.50 436.50 77.00 116.00 4945.00
1941 85.00 103.00 304.00 373.00 479.50 588.50 869.50 745.00 523.50 386.50 189.50 80.00 4727.00
1942 40.50 70.00 130.50 330.50 465.50 581.50 799.50 822.50 609.83 a 424.00 88.50 95.00 4457.83
1943 21.50 61.00 91.50 331.50 400.50 551.50 0.00 z 673.00 0.00 z 341.53 b 145.34 a 32.00 h 2617.38
1944 76.50 52.50 122.50 266.00 443.50 578.00 742.00 729.00 650.50 451.50 159.50 29.50 4301.00
1945 115.00 73.00 113.50 215.00 536.62 b 507.00 780.00 737.50 505.00 361.00 136.00 92.00 4171.62
1946 73.00 76.00 137.00 261.50 603.47 a 531.00 750.00 752.50 550.00 238.00 66.00 137.00 4175.47
1947 27.00 124.00 229.00 315.50 571.00 603.00 717.00 738.50 572.00 380.00 141.00 82.00 4500.00
1948 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 715.86 a 735.00 700.50 553.00 319.00 99.31 a 12.00 3134.67
1949 0.00 a 42.00 a 169.00 296.90 a 550.00 552.00 699.50 694.40 a 422.00 i 240.80 c 259.00 53.50 3557.10
1950 4.13 a 63.50 96.00 189.50 375.50 607.00 751.50 788.50 560.00 308.00 143.50 177.50 4064.63
1951 32.50 61.00 63.00 298.50 452.50 648.00 767.50 741.50 582.00 346.00 123.10 a 15.50 4131.10
1952 28.00 57.50 96.50 271.00 454.31 b 525.00 744.00 755.07 c 614.50 455.50 106.50 57.35 a 4165.23
1953 145.70 a 74.50 120.50 232.00 408.68 a 514.66 a 723.85 a 734.18 a 604.50 424.50 217.76 a 103.50 4304.33
1954 24.28 a 84.50 83.00 220.00 459.50 502.00 640.00 667.00 587.50 334.00 264.50 79.00 3945.28
1955 38.50 29.00 61.00 139.00 356.00 577.00 655.00 686.81 b 524.00 328.94 d 135.00 41.50 3571.75
1956 47.50 20.50 84.50 315.50 531.50 352.00 i 779.50 747.00 538.50 302.50 93.50 98.68 a 3559.18
1957 13.50 54.00 133.30 a 334.50 571.50 640.00 664.50 665.47 a 716.50 338.00 96.50 73.00 4300.77
1958 76.00 181.48 a 101.00 251.00 613.50 723.50 889.50 839.00 572.00 398.00 128.00 143.50 4916.48
1959 88.00 72.00 124.50 283.00 409.50 600.50 808.77 c 678.50 537.00 365.50 134.50 58.50 4160.27
1960 46.00 80.00 164.50 296.50 402.50 601.00 825.00 709.00 544.50 389.50 133.50 53.00 4245.00
1961 127.50 133.00 165.50 253.50 459.00 689.00 811.50 862.00 541.00 305.50 79.00 67.50 4494.00
1962 65.50 139.00 101.50 314.00 366.50 572.50 724.00 710.00 577.50 384.00 190.00 117.00 4261.50
1963 28.00 212.50 118.50 263.50 489.50 0.00 z 691.00 0.00 z 691.50 0.00 z 153.00 0.00 z 2647.50
1964 0.00 z 0.00 z 122.50 212.50 440.50 582.93 a 699.50 685.50 559.00 347.50 77.50 32.50 3759.93
1965 39.50 106.50 176.00 299.00 390.50 607.50 830.50 794.00 523.50 427.50 245.00 67.50 4507.00
1966 41.50 45.50 139.00 312.00 486.00 559.00 717.00 779.50 642.50 344.50 157.00 149.50 4373.00
1967 87.50 92.00 79.50 194.50 482.50 724.50 793.50 921.50 694.50 404.00 162.50 81.00 4717.50
1968 67.00 137.00 218.00 246.50 488.00 582.50 790.50 712.00 578.00 312.00 165.50 32.50 4329.50
1969 6.00 18.00 147.50 242.50 544.00 739.50 743.00 685.00 596.00 313.50 181.50 86.50 4303.00
1970 58.00 134.50 178.50 215.00 439.00 699.00 755.50 738.50 500.00 284.50 173.00 25.00 4200.50
1971 78.50 73.00 63.50 240.50 498.50 517.00 800.50 847.50 526.00 333.00 169.00 21.00 4168.00
1972 52.00 69.50 188.50 157.50 546.00 618.00 772.50 810.00 497.50 291.50 134.50 96.00 4233.50
1973 45.50 77.00 159.50 275.50 516.00 575.00 760.50 645.00 597.50 347.50 76.50 92.50 4168.00
1974 79.00 41.50 134.00 250.00 361.50 606.00 688.50 785.50 685.86 a 360.50 190.71 b 101.50 4284.58
1975 51.00 31.00 75.50 166.50 448.50 547.00 769.00 674.50 592.50 330.50 160.50 92.00 3938.50
1976 80.50 41.50 71.00 231.00 458.50 519.00 706.00 682.00 614.50 376.00 178.50 86.50 4045.00
1977 51.50 147.50 129.00 346.00 405.50 646.00 710.00 874.50 542.00 333.00 124.00 79.50 4388.50
1978 105.00 146.50 250.50 293.00 453.50 735.00 845.50 776.00 559.50 419.53 a 71.50 28.50 4684.03
1979 13.50 57.00 243.50 320.00 523.50 625.50 812.00 775.00 665.50 429.00 91.00 136.00 4691.50
1980 17.00 116.00 b 151.50 365.50 488.50 552.50 788.00 724.00 617.00 408.50 218.50 173.50 4620.50
1981 91.00 139.00 270.00 295.00 491.00 573.00 752.50 889.00 619.00 296.50 175.00 69.00 4660.00
1982 61.00 94.50 126.50 200.00 481.50 700.50 742.00 777.00 640.00 352.50 85.50 46.00 4307.00
1983 117.50 141.00 230.00 312.50 571.00 604.50 728.50 799.50 528.50 319.50 189.00 18.00 4559.50
1984 139.50 105.00 242.00 248.50 405.50 588.00 782.50 775.00 581.50 293.00 120.50 15.00 4296.00
1985 8.50 43.50 110.50 306.50 507.50 633.00 906.00 792.00 531.50 355.50 77.00 11.00 4282.50
1986 105.00 116.00 287.00 254.50 515.00 721.50 693.00 904.00 588.00 430.50 153.00 67.50 4835.00
1987 62.00 132.50 228.50 380.00 542.00 705.00 748.50 810.50 697.00 439.00 220.50 60.00 5025.50
1988 25.00 130.50 155.50 326.50 470.50 574.00 783.50 775.50 601.50 469.00 159.50 78.50 4549.50
1989 63.00 28.00 114.00 384.50 494.50 678.00 721.00 756.50 669.50 383.50 179.50 116.50 4588.50
1990 90.50 59.50 200.50 380.00 476.50 604.00 865.50 852.00 706.50 319.50 179.00 31.50 4765.00
1991 69.00 184.00 108.50 261.50 447.50 547.50 832.00 822.00 672.50 362.50 209.50 113.00 4629.50
1992 124.50 165.00 316.00 359.00 628.50 739.50 831.50 831.00 580.00 414.00 149.50 24.50 5163.00
1993 38.00 54.50 209.50 308.00 626.00 631.50 680.00 788.00 647.00 437.50 77.00 71.00 4568.00
1994 134.50 51.00 248.00 370.00 549.00 587.00 833.50 804.50 703.00 331.00 56.50 54.50 4722.50
1995 102.50 146.50 179.50 308.50 582.00 653.00 828.00 709.00 0.00 z 360.50 238.50 90.00 4198.00
1996 84.50 96.00 195.50 333.50 397.00 595.50 841.50 0.00 z 541.50 320.00 104.50 14.50 3524.00
1997 72.00 75.50 119.87 a 247.50 558.50 573.00 759.50 833.50 651.50 341.00 192.00 34.00 4457.87
1998 78.50 99.50 196.00 264.50 475.50 604.00 830.50 815.00 670.50 347.00 172.50 71.82 a 4625.32
1999 56.66 b 35.50 101.50 247.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 441.16
Period of Record Statistics
MEAN 65.06 86.32 156.39 285.13 486.79 612.42 763.64 763.68 598.37 363.86 148.08 74.87 4433.68
S.D. 40.70 45.70 66.11 61.54 69.97 63.80 60.39 62.95 58.91 52.49 51.67 41.40 306.65
SKEW 0.85 0.57 0.60 -0.04 0.16 0.42 0.01 0.34 0.31 -0.03 0.17 0.41 0.09
MAX 216.50 212.50 316.00 436.61 630.00 739.50 906.00 921.50 716.50 469.00 264.50 177.50 5163.00
MIN 0.00 18.00 44.00 139.00 356.00 502.00 615.87 645.00 497.50 238.00 56.50 11.00 3571.75
NO YRS 66 66 67 66 66 64 66 64 65 67 68 65 56