ISHPEMING, MICHIGAN

Monthly Total Growing Degree Days

(204127)

Base Temperature = 50 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 71.50 y 350.50 283.00 38.23 a 0.00 0.00 671.73
1899 0.00 0.00 0.00 53.50 107.98 a 344.50 0.00 z 302.00 m 146.00 48.71 c 0.00 0.00 700.70
1900 0.00 a 0.00 0.00 a 66.00 e 191.00 305.50 373.50 571.90 b 212.00 179.59 b 0.00 e 0.00 1899.48
1901 0.00 a 0.00 0.00 57.50 150.00 401.11 c 562.00 458.50 205.00 43.50 0.00 0.00 1877.61
1902 0.00 0.00 0.00 14.00 158.50 147.00 506.50 321.50 116.00 4.81 b 0.00 0.00 1268.31
1903 0.00 d 0.00 0.00 6.00 155.00 201.50 437.00 266.50 182.00 28.00 10.50 0.00 a 1286.50
1904 0.00 0.00 0.00 a 5.00 74.06 d 0.00 z 314.50 g 259.76 b 102.12 d 19.12 a 0.52 a 0.00 a 460.56
1905 0.00 0.00 2.58 a 5.00 26.00 g 117.00 p 316.00 f 56.50 z 206.90 a 63.50 u 0.00 b 0.00 214.48
1906 0.00 a 0.00 0.00 19.00 70.27 a 229.29 b 342.50 366.00 262.76 a 79.00 0.00 z 0.00 z 1368.81
1907 0.00 z 0.00 z 0.00 z 0.00 v 6.00 k 277.76 a 373.07 b 222.50 h 0.00 z 0.00 z 0.00 z 0.00 z 650.83
1908 0.00 z 0.00 z 0.00 z 17.50 f 177.14 c 393.60 e 435.50 g 369.50 f 433.45 a 92.48 a 0.00 d 0.00 e 1096.67
1909 0.00 e 0.00 i 0.00 d 0.00 e 58.50 f 411.00 e 460.83 e 489.11 d 161.11 c 77.50 e 0.00 f 0.00 f 1599.55
1910 0.00 e 0.00 e 38.50 f 24.23 d 49.00 f 467.31 d 542.50 e 391.52 d 129.00 g 86.11 d 0.00 f 0.00 f 1511.67
1911 0.00 f 0.00 e 0.00 e 34.50 f 285.56 e 433.85 d 459.12 b 338.00 169.44 c 20.15 a 0.00 b 0.00 c 1706.12
1912 0.00 a 0.00 0.00 18.50 133.00 270.00 482.00 233.00 243.89 c 65.50 0.00 a 0.00 e 1445.89
1913 0.00 0.00 b 0.00 55.00 97.00 432.93 a 398.35 a 446.29 b 195.00 69.23 a 0.00 0.00 b 1693.81
1914 0.00 0.00 b 0.00 9.83 a 200.43 b 323.50 553.00 384.00 236.79 b 139.50 3.50 0.00 1850.54
1915 0.00 i 0.00 0.00 122.00 43.50 195.50 336.00 264.00 251.00 25.46 c 0.00 b 0.00 b 1237.46
1916 0.00 z 0.00 d 0.00 b 5.69 a 83.00 168.75 b 659.55 b 517.50 169.44 c 67.88 b 0.00 b 0.00 d 1671.82
1917 0.00 a 0.00 a 0.00 0.00 c 95.00 178.00 524.50 322.50 176.79 b 2.14 b 0.00 d 0.00 a 1298.92
1918 0.00 b 0.00 2.50 5.17 a 128.02 d 242.31 d 434.00 429.00 44.46 b 26.02 c 0.00 0.00 a 1311.48
1919 0.00 0.00 0.00 b 1.55 a 168.50 527.00 568.00 451.00 259.50 55.91 c 0.00 i 0.00 a 2031.46
1920 0.00 0.00 0.00 0.00 a 140.50 381.50 394.50 413.00 323.50 205.50 0.00 0.00 1858.50
1921 0.00 0.00 0.00 85.00 225.50 558.50 713.00 467.50 323.00 22.50 0.00 0.00 2395.00
1922 0.00 0.00 0.00 5.50 284.50 360.50 438.50 465.00 360.50 87.00 0.00 0.00 2001.50
1923 0.00 0.00 b 0.00 27.00 166.50 456.00 497.00 320.00 219.50 57.00 0.00 0.00 1743.00
1924 0.00 0.00 b 0.00 b 0.00 34.44 d 151.00 m 375.74 b 362.00 97.50 70.50 3.50 0.00 d 943.69
1925 0.00 0.00 0.00 37.50 95.00 358.50 428.00 467.50 224.00 0.00 0.00 0.00 1610.50
1926 0.00 0.00 0.00 10.00 161.50 211.50 436.50 356.50 a 104.50 13.00 0.00 0.00 1293.50
1927 0.00 0.00 1.00 28.50 16.00 249.50 389.00 239.50 318.50 33.50 0.00 0.00 1275.50
1928 0.00 b 0.00 0.00 0.00 115.50 178.00 0.00 z 437.00 116.50 58.00 0.00 0.00 905.00
1929 0.00 0.00 0.00 10.50 109.53 a 244.50 466.50 425.50 198.50 29.50 0.00 0.00 1484.53
1930 0.00 0.00 0.00 18.00 203.00 355.00 457.00 453.50 224.00 89.90 a 1.50 0.00 1801.90
1931 0.00 0.00 0.00 27.50 127.50 438.00 575.00 403.50 374.00 102.00 13.00 0.00 2060.50
1932 0.00 0.00 a 0.00 a 1.00 141.50 371.79 b 482.50 497.00 212.50 15.00 0.00 a 0.00 1721.29
1933 0.00 0.00 c 0.00 1.50 173.50 557.50 545.00 424.50 282.00 15.00 0.00 0.00 1999.00
1934 0.00 0.00 0.00 18.50 230.95 a 375.00 450.00 357.53 a 149.00 53.50 0.00 0.00 1634.48
1935 0.00 0.00 0.00 12.50 78.50 229.50 613.50 455.00 142.00 34.50 0.00 0.00 1565.50
1936 0.00 0.00 b 0.00 b 0.50 199.00 287.50 578.50 376.50 265.50 13.95 a 0.00 0.00 a 1721.45
1937 0.00 0.00 0.00 5.50 125.00 343.50 530.50 606.50 232.50 27.00 0.00 a 0.00 1870.50
1938 0.00 0.00 2.50 29.00 120.00 310.00 445.50 537.50 166.00 89.50 27.50 0.00 1727.50
1939 0.00 0.00 0.00 26.00 185.00 386.00 533.50 451.00 251.00 48.00 0.00 0.00 1880.50
1940 0.00 0.00 0.00 3.50 50.50 277.50 498.50 446.50 292.50 63.00 0.00 0.00 1632.00
1941 0.00 0.00 0.00 95.50 254.50 419.50 534.00 397.00 286.50 19.50 4.50 0.00 a 2011.00
1942 0.00 0.00 0.00 151.00 109.50 330.50 425.00 448.00 201.50 79.00 0.00 0.00 1744.50
1943 0.00 0.00 0.00 19.50 109.00 383.00 602.50 448.50 155.50 95.50 0.00 0.00 1813.50
1944 0.00 0.00 0.00 4.50 266.50 382.50 517.00 501.00 211.50 57.50 15.50 0.00 1956.00
1945 0.00 0.00 26.50 40.50 22.50 275.00 397.00 430.00 211.00 52.00 0.00 0.00 1454.50
1946 0.00 0.00 29.00 37.00 99.00 318.50 467.50 369.00 213.00 106.50 0.00 0.00 1639.50
1947 0.00 0.00 0.00 9.50 49.00 241.50 491.50 637.50 294.00 197.00 0.00 0.00 1920.00
1948 0.00 0.00 0.00 45.00 95.00 295.50 466.11 c 446.92 a 304.14 a 25.00 2.07 a 0.00 1679.73
1949 0.00 0.00 0.00 60.00 f 135.37 a 468.10 a 541.39 c 496.50 141.11 c 94.00 0.00 i 0.00 f 1876.47
1950 0.00 a 0.00 0.00 a 0.00 100.50 345.50 395.50 260.00 192.00 104.50 0.00 0.00 d 1398.00
1951 0.00 0.00 b 0.00 d 12.50 238.00 246.50 461.00 298.50 124.50 48.05 a 0.00 0.00 1429.05
1952 0.00 0.00 0.00 99.50 91.00 359.50 521.50 426.50 271.50 7.00 0.00 0.00 1776.50
1953 0.00 0.00 0.00 1.00 120.00 385.00 495.00 521.00 228.00 157.00 9.50 0.00 1916.50
1954 0.00 0.00 0.00 5.50 75.50 430.50 456.50 403.50 130.00 28.50 0.00 0.00 1530.00
1955 0.00 0.00 0.00 52.00 248.50 398.00 663.00 592.50 218.50 98.50 0.00 0.00 2271.00
1956 0.00 0.00 0.00 0.00 102.50 429.50 368.50 433.00 128.28 a 117.50 26.00 0.00 1605.28
1957 0.00 0.00 0.00 83.00 126.50 347.00 539.50 434.00 178.50 31.50 0.00 0.00 i 1740.00
1958 0.00 0.00 0.00 47.59 a 82.00 187.50 440.50 388.50 223.00 45.50 0.00 0.00 1414.59
1959 0.00 a 0.00 0.00 9.00 222.50 417.50 514.50 535.00 254.00 19.00 0.00 0.00 1971.50
1960 0.00 0.00 0.00 23.00 138.50 280.00 437.50 468.50 241.50 55.00 0.00 0.00 1644.00
1961 0.00 0.00 0.00 10.50 111.50 336.50 492.50 505.00 290.50 96.62 a 0.00 0.00 1843.12
1962 0.00 0.00 0.00 11.50 228.00 298.00 389.00 436.50 137.50 91.50 0.00 0.00 1592.00
1963 0.00 0.00 0.00 21.50 108.00 402.00 553.00 398.50 212.00 233.50 0.00 0.00 1928.50
1964 0.00 0.00 0.00 34.00 241.00 376.50 559.00 326.00 191.00 62.00 a 7.50 0.00 1797.00
1965 0.00 0.00 0.00 16.50 h 210.50 311.50 384.50 369.00 101.50 73.00 3.00 0.00 1453.00
1966 0.00 0.00 0.00 a 0.00 91.50 399.00 617.50 399.00 230.50 37.50 0.00 0.00 1775.00
1967 0.00 0.00 6.00 11.50 48.50 353.00 452.00 368.50 266.00 60.50 0.00 0.00 1566.00
1968 0.00 0.00 0.00 a 29.50 81.00 323.00 481.53 a 436.50 283.00 116.50 0.00 0.00 1751.03
1969 0.00 0.00 0.00 9.83 a 174.50 167.50 458.50 591.50 269.50 63.50 0.00 0.00 a 1734.83
1970 0.00 0.00 0.00 61.00 102.50 397.50 586.00 489.50 258.00 70.50 0.00 0.00 1965.00
1971 0.00 0.00 0.00 4.00 72.50 439.00 396.59 b 385.00 282.50 126.50 0.00 0.00 1706.09
1972 0.00 0.00 0.00 2.00 262.50 304.00 439.00 419.50 128.00 29.50 0.00 0.00 1584.50
1973 0.00 0.00 0.00 35.50 49.00 368.00 507.00 540.50 223.00 147.50 0.00 0.00 1870.50
1974 0.00 0.00 0.00 41.50 92.00 267.00 570.92 a 421.50 116.00 51.50 0.00 0.00 1560.42
1975 0.00 0.00 0.00 0.00 270.00 425.50 617.00 495.50 123.50 57.50 13.00 0.00 a 2002.00
1976 0.00 0.00 0.00 60.54 b 123.00 465.00 517.00 517.50 275.00 63.50 0.00 0.00 2021.54
1977 0.00 0.00 0.00 102.50 398.00 318.50 595.00 311.00 185.50 18.50 3.00 0.00 1932.00
1978 0.00 0.00 0.00 a 2.00 240.50 290.50 465.50 483.00 263.00 58.00 12.50 0.00 1815.00
1979 0.00 0.00 0.00 17.00 72.00 281.00 499.50 386.00 240.50 26.50 0.00 0.00 1522.50
1980 0.00 0.00 0.00 a 43.50 261.00 289.50 533.00 510.47 a 177.50 17.50 0.00 0.00 1832.47
1981 0.00 0.00 3.50 12.00 110.00 352.50 522.00 480.50 147.50 19.50 5.00 0.00 1652.50
1982 0.00 0.00 0.00 27.50 230.50 176.50 526.50 376.00 204.50 42.50 0.00 1.50 1585.50
1983 0.00 0.00 0.00 12.50 63.00 369.00 679.50 610.50 318.50 43.00 1.50 0.00 2097.50
1984 0.00 0.00 0.00 21.00 122.50 433.50 478.50 549.50 128.50 j 42.00 k 0.00 0.00 1605.00
1985 0.00 a 0.00 0.00 83.50 154.00 218.50 443.00 376.50 209.00 21.50 0.00 0.00 1506.00
1986 0.00 0.00 2.00 70.00 267.50 287.00 579.00 376.00 198.50 33.50 0.00 0.00 1813.50
1987 0.00 0.00 4.50 67.50 223.20 a 454.00 562.50 426.50 238.00 9.00 0.00 z 0.00 z 1985.20
Period of Record Statistics
MEAN 0.00 0.00 0.93 27.89 145.83 336.33 494.06 427.26 215.08 62.13 1.96 0.02 1726.27
S.D. 0.00 0.00 4.29 31.50 74.57 91.81 79.66 86.80 69.98 46.99 5.18 0.16 238.28
SKEW 0.00 0.00 5.86 1.61 0.68 0.01 0.34 0.02 0.24 1.41 3.32 8.94 0.06
MAX 0.00 0.00 29.00 151.00 398.00 558.50 713.00 637.50 433.45 233.50 27.50 1.50 2395.00
MIN 0.00 0.00 0.00 0.00 16.00 147.00 336.00 233.00 44.46 0.00 0.00 0.00 1268.31
NO YRS 84 86 86 84 85 86 84 86 87 87 83 83 70