ISHPEMING, MICHIGAN

Monthly Total Growing Degree Days

(204127)

Base Temperature = 40 F

File last updated on Oct 29, 2012
*** Note *** Provisional Data *** After Year/Month 198710
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
1898 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 131.50 y 660.50 558.00 140.53 a 15.50 0.00 1374.53
1899 0.00 0.00 0.00 164.00 307.42 a 638.50 0.00 z 482.00 m 350.00 226.96 c 38.00 0.00 1724.88
1900 0.00 a 0.00 0.00 a 220.80 e 430.00 596.00 679.00 881.90 b 483.00 455.38 b 0.00 e 0.00 3746.08
1901 0.00 a 0.00 0.00 152.00 391.50 694.44 c 870.00 768.50 452.50 201.50 2.00 0.00 3532.44
1902 0.00 0.00 30.00 54.50 353.00 420.50 816.50 631.50 387.00 111.71 b 22.50 0.00 2827.21
1903 0.00 d 0.00 2.50 55.50 390.00 476.00 747.00 576.00 437.00 206.00 48.00 0.00 a 2938.00
1904 0.00 0.00 0.00 a 41.00 230.20 d 0.00 z 554.50 g 564.41 b 347.31 d 149.32 a 50.17 a 0.00 a 1382.41
1905 0.00 0.00 21.70 a 64.00 147.00 g 255.00 p 566.00 f 96.50 z 475.34 a 160.50 u 4.82 b 0.00 565.87
1906 0.00 a 0.00 0.00 98.50 201.50 a 517.50 b 652.50 673.50 542.59 a 196.50 0.00 z 0.00 z 2882.59
1907 0.00 z 0.00 z 0.00 z 0.00 v 36.50 k 570.52 a 674.52 b 444.50 h 0.00 z 0.00 z 0.00 z 0.00 z 1245.03
1908 0.00 z 0.00 z 0.00 z 98.50 f 383.07 c 688.20 e 675.50 g 619.50 f 703.45 a 290.88 a 23.65 d 0.00 e 2089.26
1909 0.00 e 0.00 i 0.00 d 0.60 e 234.00 f 711.00 e 770.83 e 795.67 d 427.22 c 185.40 e 35.50 f 1.50 f 2890.72
1910 0.00 e 0.00 e 120.50 f 154.04 d 193.00 f 732.12 d 852.50 e 700.94 d 340.00 g 265.80 d 0.00 f 0.00 f 2705.39
1911 0.00 f 0.00 e 5.37 e 115.00 f 551.44 e 730.38 d 769.12 b 646.50 415.56 c 160.68 a 5.36 b 0.00 c 3284.41
1912 0.00 a 0.00 0.00 85.50 354.00 567.00 792.00 541.00 500.00 c 227.50 15.52 a 0.00 e 3082.52
1913 0.00 0.00 b 0.00 147.50 291.50 710.17 a 708.35 a 754.16 b 454.00 199.43 a 37.50 5.34 b 3307.96
1914 0.00 0.00 b 0.00 69.83 a 448.43 b 611.00 863.00 689.50 526.07 b 361.00 33.00 1.50 3603.33
1915 0.00 i 0.00 0.00 288.00 200.50 469.50 644.50 558.50 508.50 191.54 c 26.79 b 0.00 b 2887.82
1916 0.00 z 0.00 d 0.53 b 55.34 a 305.50 456.96 b 969.55 b 826.00 408.89 c 197.76 b 11.79 b 0.00 d 3232.33
1917 0.00 a 0.00 a 0.00 13.89 c 213.00 440.00 834.50 632.00 440.36 b 32.07 b 26.54 d 0.00 a 2632.35
1918 0.00 b 0.00 51.50 71.90 a 361.09 d 541.15 d 744.00 739.00 241.07 b 182.68 c 45.50 0.00 a 2977.89
1919 0.00 0.00 5.88 b 43.97 a 379.00 827.00 878.00 761.00 536.00 164.96 c 0.00 i 0.00 a 3595.81
1920 0.00 0.00 21.50 24.83 a 356.00 681.50 704.50 723.00 600.00 454.00 0.50 0.00 3565.83
1921 0.00 0.00 6.00 225.00 466.00 854.50 1023.00 777.50 620.00 186.00 0.00 0.00 4158.00
1922 0.00 0.00 5.50 73.00 592.00 660.50 746.00 775.00 654.00 189.50 39.00 0.00 3734.50
1923 0.00 0.00 b 0.00 114.00 383.50 750.50 807.00 630.00 498.50 200.00 29.50 1.50 3414.50
1924 0.00 0.00 b 0.00 b 42.00 153.85 d 316.50 m 685.74 b 672.00 343.50 306.50 41.00 0.00 d 2244.59
1925 0.00 0.00 17.00 140.00 242.00 651.50 737.00 777.50 493.00 32.50 15.00 0.00 3105.50
1926 0.00 0.00 0.00 57.50 367.50 498.00 746.50 666.50 a 345.50 107.00 3.00 0.00 2791.50
1927 0.00 0.00 18.50 90.50 164.50 533.50 699.00 549.50 575.00 211.00 5.50 0.00 2847.00
1928 0.00 b 0.00 11.00 44.50 372.00 470.00 0.00 z 747.00 346.50 174.00 11.00 0.00 2176.00
1929 0.00 0.00 1.00 99.00 279.00 a 497.00 776.50 735.50 443.50 157.50 10.50 0.00 2999.50
1930 0.00 17.00 1.50 106.50 407.50 653.00 767.00 763.50 490.50 227.85 a 72.50 0.00 3506.85
1931 0.00 0.00 0.00 122.50 354.00 736.50 885.00 710.50 670.00 321.50 83.50 0.00 3883.50
1932 0.00 0.00 a 0.00 a 56.00 346.00 671.79 b 792.50 807.00 494.50 111.50 3.10 a 1.00 3283.39
1933 0.00 0.00 c 0.00 46.00 392.50 853.00 855.00 734.00 580.50 138.50 12.50 0.00 3612.00
1934 0.00 0.00 0.00 42.00 485.15 a 655.00 760.00 656.17 a 390.00 226.00 13.50 0.00 3227.82
1935 0.00 0.00 0.00 64.50 265.00 503.00 923.50 758.50 410.50 194.50 0.00 0.00 3119.50
1936 0.00 0.00 b 3.74 b 23.50 459.00 583.00 888.50 686.50 535.50 97.13 a 0.00 0.00 a 3276.87
1937 0.00 0.00 0.00 36.00 368.00 636.00 840.50 916.50 505.00 124.50 4.66 a 0.00 3431.16
1938 0.00 0.00 50.00 133.50 361.50 606.50 755.50 847.50 460.50 295.00 74.50 0.00 3584.50
1939 0.00 0.00 6.50 80.00 414.50 673.00 843.50 761.00 506.50 178.00 12.50 0.00 3475.50
1940 0.00 0.00 0.00 30.00 257.50 577.50 808.50 752.00 569.50 220.00 17.50 0.00 3232.50
1941 0.00 0.00 0.00 232.50 521.50 716.50 844.00 706.50 575.00 194.00 24.50 8.27 a 3822.77
1942 2.00 0.00 0.00 303.50 345.00 630.50 735.00 758.00 430.50 290.00 17.50 0.00 3512.00
1943 0.00 0.00 15.00 70.00 339.50 676.50 912.50 758.50 383.50 237.00 1.00 0.00 3393.50
1944 6.00 0.00 0.00 57.00 504.00 678.00 827.00 811.00 494.00 218.00 68.50 0.00 3663.50
1945 0.00 0.00 113.00 108.00 158.00 527.50 707.00 740.00 462.00 149.50 15.00 0.00 2980.00
1946 0.00 0.00 86.00 139.50 278.00 596.50 777.50 678.00 474.50 302.50 24.50 5.00 3362.00
1947 0.00 0.00 0.50 31.00 189.50 516.00 801.50 947.50 530.50 450.50 26.00 0.00 3493.00
1948 0.00 0.00 10.00 138.00 293.50 594.00 776.11 c 756.92 a 593.79 a 208.00 62.07 a 0.00 3432.39
1949 0.00 0.00 0.00 149.50 f 363.73 a 761.38 a 851.39 c 806.50 407.22 c 313.00 8.50 i 0.00 f 3503.23
1950 0.00 a 0.00 0.00 a 13.50 294.00 633.50 705.50 563.50 478.50 311.00 4.50 0.00 d 3004.00
1951 0.00 0.00 b 4.59 d 79.50 500.00 530.50 771.00 608.50 378.50 175.67 a 2.00 4.00 3054.26
1952 0.00 0.00 2.00 231.50 338.50 659.50 831.50 736.50 548.00 91.50 21.00 0.00 3460.00
1953 0.00 0.00 12.00 26.50 368.50 680.00 805.00 831.00 508.50 373.00 72.50 0.00 3677.00
1954 0.00 0.00 1.00 112.00 237.50 726.50 766.50 713.50 408.50 181.00 22.50 0.00 3169.00
1955 0.00 0.00 10.00 216.00 526.00 691.50 973.00 902.50 490.50 278.00 2.50 0.00 4090.00
1956 0.00 0.00 0.00 23.50 299.50 722.00 678.50 743.00 367.24 a 364.00 85.00 0.00 3282.74
1957 0.00 0.00 0.00 219.00 344.00 640.50 849.50 744.00 436.50 203.50 21.00 0.00 i 3458.00
1958 0.00 3.00 0.00 151.55 a 281.00 478.00 750.50 698.50 516.00 240.50 45.00 0.00 3164.05
1959 0.00 a 0.00 1.50 69.50 482.00 715.50 821.00 845.00 524.00 125.50 0.00 0.00 3584.00
1960 0.00 0.00 0.00 122.00 341.50 580.00 747.50 778.50 512.00 237.50 26.00 2.00 3347.00
1961 0.00 0.00 7.50 56.00 316.50 635.00 802.50 815.00 552.00 243.87 a 27.00 3.50 3458.87
1962 0.00 0.00 11.50 78.00 490.00 594.00 699.00 746.50 383.00 280.00 6.50 19.00 3307.50
1963 0.00 0.00 25.50 128.50 337.50 692.50 863.00 708.00 493.00 499.00 39.00 0.00 3786.00
1964 0.00 0.00 3.00 138.00 514.50 651.50 869.00 633.00 448.00 211.32 a 89.50 0.00 3557.82
1965 0.00 0.00 0.00 43.50 h 489.50 603.00 694.50 669.00 336.50 223.00 27.00 0.00 3042.50
1966 0.00 0.00 16.02 a 38.50 251.00 694.50 927.50 709.00 499.50 176.50 4.00 0.00 3316.52
1967 0.00 0.00 23.50 98.00 219.00 653.00 762.00 677.00 525.00 183.50 10.50 0.00 3151.50
1968 0.00 0.00 53.73 a 129.00 321.00 619.50 791.53 a 746.50 573.00 295.00 13.00 0.00 3542.27
1969 0.00 0.00 0.00 119.48 a 401.50 446.00 764.00 901.50 542.00 190.50 30.50 0.00 a 3395.48
1970 0.00 0.00 0.00 150.50 292.00 696.00 896.00 799.50 531.50 283.50 16.50 0.00 3665.50
1971 0.00 0.00 0.00 78.00 288.00 736.00 706.59 b 687.50 574.50 389.00 19.00 0.00 3478.59
1972 0.00 0.00 0.00 46.50 500.50 596.50 747.50 729.50 397.00 162.50 6.00 0.00 3186.00
1973 1.00 0.00 20.00 111.00 251.50 668.00 817.00 850.50 484.00 377.50 6.50 0.00 3587.00
1974 0.00 0.00 3.50 146.00 292.00 563.00 880.92 a 731.50 364.50 206.50 34.00 0.00 3221.92
1975 0.00 0.00 0.00 49.50 554.50 725.50 927.00 805.50 386.50 269.50 91.50 0.00 a 3809.50
1976 0.00 5.50 25.00 162.86 b 341.00 765.00 827.00 827.50 531.50 158.50 3.00 0.00 3646.86
1977 0.00 0.00 23.50 272.50 675.00 609.00 905.00 621.00 479.50 182.50 58.00 0.00 3826.00
1978 0.00 0.00 0.00 a 35.00 466.50 580.50 775.50 793.00 557.50 220.00 75.00 0.00 3503.00
1979 0.00 0.00 4.50 80.00 269.00 577.50 809.50 692.50 533.00 133.00 17.50 0.00 3116.50
1980 0.00 0.00 2.58 a 144.50 519.00 580.00 843.00 820.47 a 434.50 114.50 11.50 0.00 3470.05
1981 0.00 19.00 22.00 102.00 318.00 652.50 832.00 790.50 373.50 121.50 61.00 0.00 3292.00
1982 0.00 0.00 2.00 90.50 509.50 464.50 836.50 683.50 476.00 252.00 31.00 18.50 3364.00
1983 0.00 1.00 3.00 58.50 229.00 669.00 989.50 920.50 585.50 192.00 31.50 0.00 3679.50
1984 0.00 7.50 0.00 119.50 328.50 733.50 788.50 859.50 316.50 j 150.50 k 23.50 0.00 2860.50
1985 0.00 a 0.00 10.00 208.50 430.00 510.00 753.00 686.50 474.50 195.00 16.00 0.00 3283.50
1986 0.00 0.00 39.50 193.50 521.00 578.50 889.00 683.50 471.00 174.50 9.00 0.00 3559.50
1987 0.00 0.00 52.50 235.50 466.55 a 754.00 872.50 736.50 531.50 78.50 0.00 z 0.00 z 3727.55
Period of Record Statistics
MEAN 0.11 0.62 10.05 105.30 363.24 627.27 803.70 736.04 480.27 219.05 25.96 0.84 3394.20
S.D. 0.69 2.90 19.12 68.62 109.00 96.62 79.98 87.85 83.39 90.93 24.02 3.13 301.41
SKEW 7.67 5.37 3.10 0.90 0.32 -0.09 0.32 0.00 -0.05 0.84 1.16 4.82 -0.07
MAX 6.00 19.00 113.00 303.50 675.00 854.50 1023.00 947.50 703.45 499.00 91.50 19.00 4158.00
MIN 0.00 0.00 0.00 0.60 153.85 420.50 644.50 541.00 241.07 32.07 0.00 0.00 2632.35
NO YRS 84 86 86 84 85 86 84 86 87 87 83 83 70