TACOMA CITY HALL, WASHINGTON

Monthly Total Growing Degree Days

(458286)

Base Temperature = 40 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 198112
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
1933 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 787.50 504.00 394.50 177.50 166.50 2030.00
1934 164.00 198.50 353.50 475.50 557.50 632.50 721.50 776.00 558.50 445.00 281.50 116.50 5280.50
1935 143.00 125.00 97.00 279.00 477.00 623.50 724.50 725.50 643.00 363.50 109.50 128.50 4439.00
1936 124.50 29.50 140.50 405.50 545.50 661.50 767.00 808.50 548.50 440.50 150.50 144.50 4766.50
1937 0.00 65.50 257.00 266.50 477.50 644.50 762.00 721.50 603.00 479.50 242.00 153.00 4672.00
1938 69.00 108.50 189.00 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 366.50
1939 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
1940 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
1941 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
1942 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
1943 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
1944 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
1945 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
1946 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
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 677.50 718.00 696.00 521.00 340.50 118.00 17.50 3088.50
1949 6.50 68.00 196.50 330.50 550.00 579.00 691.50 732.00 613.50 297.50 324.50 70.00 4459.50
1950 19.00 108.50 117.50 234.00 395.00 616.00 736.50 765.00 583.00 350.00 182.07 a 222.50 4329.07
1951 44.50 94.50 92.50 334.50 476.50 655.50 774.00 711.45 a 605.00 369.50 181.50 31.50 4370.95
1952 58.50 88.00 124.50 316.50 463.00 526.50 745.00 749.00 619.50 477.00 143.00 122.50 4433.00
1953 202.50 86.50 155.50 258.00 e 491.50 554.50 775.00 790.00 653.50 464.50 267.50 164.00 4863.00
1954 60.00 152.50 130.50 267.00 495.50 540.50 681.50 691.50 602.00 373.00 333.00 130.00 4457.00
1955 69.00 61.00 73.50 163.00 327.00 581.00 680.45 a 704.00 561.50 396.50 150.50 87.50 3854.95
1956 88.00 30.50 124.50 333.50 565.50 562.50 795.50 769.00 586.50 394.50 154.00 118.50 4522.50
1957 19.00 80.50 204.50 364.00 602.00 658.00 699.00 722.50 714.83 a 412.00 153.50 179.00 4808.83
1958 149.50 257.00 175.00 317.00 654.00 769.50 943.50 850.00 617.50 449.00 188.50 201.00 5571.50
1959 132.00 89.00 0.00 z 0.00 z 0.00 z 617.00 772.00 718.00 546.50 360.50 164.00 80.50 3479.50
1960 54.50 105.50 156.19 e 285.50 456.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1058.19
1961 0.00 z 0.00 z 198.00 265.00 477.00 705.00 834.50 871.00 572.50 356.50 132.00 84.00 4495.50
1962 89.00 190.00 153.00 337.50 374.00 593.50 737.00 705.50 620.00 413.00 223.50 137.00 4573.00
1963 34.50 249.50 167.00 333.00 550.50 570.50 708.00 761.50 725.00 0.00 z 209.50 137.00 4446.00
1964 114.00 58.00 p 134.00 h 245.00 427.50 592.50 741.00 704.00 572.50 428.00 115.00 23.50 3963.00
1965 58.50 91.00 227.00 342.50 403.00 613.00 807.00 788.29 c 559.00 508.00 264.00 85.00 4746.29
1966 81.00 104.74 a 187.00 328.00 491.00 580.50 724.00 793.50 681.50 415.50 217.00 170.00 4773.74
1967 121.00 105.50 104.00 232.00 510.50 734.50 583.50 i 922.50 746.50 459.50 228.50 107.50 4272.00
1968 89.50 219.00 255.50 263.50 497.50 611.50 817.50 723.00 594.00 374.50 206.50 49.00 4701.00
1969 18.60 a 64.50 224.50 291.50 603.50 731.00 766.50 710.00 612.50 380.00 197.00 119.00 4718.60
1970 73.00 195.00 212.00 237.00 487.00 703.00 781.50 769.00 533.00 348.00 211.50 44.50 4594.50
1971 94.50 90.50 102.00 287.00 510.00 508.50 817.00 868.00 581.50 360.50 169.00 26.00 4414.50
1972 38.00 100.00 219.00 196.50 564.50 599.50 795.50 817.00 538.50 345.50 175.38 d 110.00 4499.38
1973 105.83 b 148.50 204.50 322.50 535.50 592.00 795.50 231.00 v 138.50 w 422.50 118.50 136.50 3381.83
1974 86.05 b 87.77 b 187.60 b 287.00 408.50 645.52 a 727.00 810.50 750.00 447.00 207.00 141.57 a 4785.51
1975 67.50 76.50 135.00 221.00 481.50 579.00 791.00 688.00 676.00 396.00 185.50 109.57 b 4406.57
1976 103.50 72.00 104.00 315.00 495.50 546.50 763.50 713.00 672.00 425.50 209.00 120.50 4540.00
1977 71.00 186.50 137.00 387.00 419.00 649.00 730.00 879.50 563.50 401.00 149.00 91.50 4664.00
1978 126.50 161.00 280.00 312.50 465.50 740.50 811.50 777.00 575.00 470.00 104.50 35.00 4859.00
1979 10.00 65.50 284.88 b 288.50 523.50 606.50 805.50 782.50 700.00 509.50 151.00 163.50 4890.88
1980 27.38 a 143.84 d 174.00 416.90 a 501.50 562.00 782.50 727.50 640.00 486.50 227.50 182.00 4871.62
1981 151.38 a 145.00 304.83 a 335.00 508.50 409.00 j 758.50 900.50 675.00 379.00 260.00 113.50 4531.22
Period of Record Statistics
MEAN 80.11 117.91 179.13 302.05 493.58 621.21 763.37 768.36 612.68 409.01 191.63 113.67 4650.58
S.D. 48.77 57.58 65.60 62.69 67.19 63.72 51.20 62.88 63.74 51.52 56.55 51.43 309.69
SKEW 0.36 0.81 0.63 0.37 -0.11 0.54 0.99 0.79 0.54 0.16 0.62 -0.17 0.56
MAX 202.50 257.00 353.50 475.50 654.00 769.50 943.50 922.50 750.00 509.50 333.00 222.50 5571.50
MIN 0.00 29.50 73.50 163.00 327.00 508.50 680.45 688.00 504.00 297.50 104.50 17.50 3854.95
NO YRS 37 36 36 36 36 36 36 37 37 37 38 38 29