TWO HARBORS, MINNESOTA

Monthly Total Growing Degree Days

(218419)

Base Temperature = 50 F

File last updated on Apr 6, 2013
*** Note *** Provisional Data *** After Year/Month 201302
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
1894 0.00 z 0.00 u 0.00 4.00 43.00 359.00 489.00 413.50 262.00 24.50 0.00 a 0.00 1595.00
1895 0.00 0.00 0.00 8.00 101.00 226.00 383.50 467.00 251.50 16.50 0.00 0.00 1453.50
1896 0.00 0.00 0.00 0.00 113.00 279.00 412.50 413.00 120.00 12.50 0.00 0.00 1350.00
1897 0.00 0.00 0.00 13.50 33.50 156.50 433.50 387.50 322.50 75.50 0.00 0.00 1422.50
1898 0.00 z 0.00 0.00 3.00 71.00 181.00 447.50 397.00 211.50 28.00 1.00 0.00 1340.00
1899 0.00 0.00 0.00 5.00 34.50 180.00 365.50 391.00 172.50 31.00 3.00 0.00 1182.50
1900 0.00 0.00 0.00 2.50 33.50 286.50 367.00 496.50 206.50 67.50 0.00 0.00 1460.00
1901 0.00 a 0.00 0.00 9.31 a 60.00 168.50 426.50 456.73 a 175.00 21.50 0.00 0.00 1317.54
1902 0.00 0.00 a 0.00 1.00 52.00 109.50 396.50 267.50 62.50 4.02 d 0.00 0.00 893.02
1903 0.00 0.00 0.00 e 6.50 31.50 176.50 354.00 263.00 115.86 a 8.50 5.50 0.00 a 961.36
1904 0.00 0.00 0.00 0.00 64.50 162.00 345.65 a 361.00 131.00 19.50 0.00 0.00 a 1083.65
1905 0.00 0.00 0.00 19.00 103.00 327.50 537.00 570.00 341.00 92.00 0.00 0.00 1989.50
1906 0.00 0.00 0.00 22.50 13.00 174.50 466.00 504.50 375.00 43.50 0.00 0.00 1599.00
1907 0.00 0.00 0.00 0.00 4.00 209.50 417.00 314.50 160.50 20.50 0.00 0.00 1126.00
1908 0.00 0.00 0.00 15.50 77.00 202.00 412.00 408.00 326.00 57.50 0.00 0.00 1498.00
1909 0.00 0.00 0.00 0.00 28.00 211.50 389.50 473.00 197.00 34.50 0.00 0.00 1333.50
1910 0.00 0.00 6.00 0.50 25.50 355.00 545.00 435.00 211.00 76.50 0.00 0.00 1654.50
1911 0.00 0.00 0.00 0.00 94.00 273.00 402.50 390.00 163.00 17.00 0.00 0.00 1339.50
1912 0.00 0.00 0.00 1.50 50.50 228.00 396.00 296.00 244.50 53.00 0.00 0.00 1269.50
1913 0.00 0.00 0.00 7.50 37.50 233.00 343.50 440.50 211.50 52.50 3.00 0.00 1329.00
1914 0.00 0.00 0.00 1.00 140.50 196.00 413.00 413.50 233.28 a 69.00 2.50 0.00 1468.78
1915 0.00 0.00 0.00 51.50 30.50 109.50 294.50 364.00 216.50 12.50 0.00 0.00 1079.00
1916 0.00 0.00 0.00 3.50 66.50 109.00 524.00 535.00 204.00 54.50 0.00 0.00 1496.50
1917 0.00 0.00 0.00 0.00 33.00 114.00 409.50 326.00 135.00 6.00 0.50 0.00 1024.00
1918 0.00 0.00 1.50 0.00 82.00 237.00 525.50 521.50 138.00 62.50 0.00 0.00 1568.00
1919 0.00 0.00 0.00 0.50 99.00 210.50 573.50 537.00 272.50 51.00 0.00 0.00 1744.00
1920 0.00 0.00 0.00 0.00 89.00 230.00 446.50 482.00 357.50 151.00 0.00 0.00 1756.00
1921 0.00 0.00 0.00 12.50 101.50 374.00 693.50 461.50 311.00 20.00 0.00 0.00 1974.00
1922 0.00 0.00 0.00 0.00 70.00 229.00 381.50 480.00 272.00 70.00 0.00 0.00 1502.50
1923 0.00 0.00 0.00 3.00 70.50 276.50 456.73 a 414.50 270.50 79.00 0.00 0.00 1570.73
1924 0.00 0.00 0.00 0.00 41.50 204.00 378.00 386.50 171.00 65.50 1.50 0.00 1248.00
1925 0.00 0.00 0.00 9.50 78.00 254.00 461.50 522.50 259.00 0.00 0.00 0.00 1584.50
1926 0.00 0.00 0.00 7.00 67.00 193.00 365.50 420.50 94.50 18.00 0.00 0.00 1165.50
1927 0.00 0.00 0.00 0.00 1.00 86.50 300.50 294.50 275.00 7.00 0.00 0.00 964.50
1928 0.00 0.00 0.00 0.00 73.00 119.50 362.00 431.00 143.00 37.50 0.00 0.00 1166.00
1929 0.00 0.00 0.00 0.00 50.50 198.00 508.00 483.00 190.00 70.00 0.00 0.00 1499.50
1930 0.00 0.00 0.00 0.50 74.00 317.00 437.00 553.50 217.00 43.00 0.00 0.00 1642.00
1931 0.00 0.00 0.00 15.50 89.50 219.00 569.50 466.00 304.00 109.00 1.50 0.00 1774.00
1932 0.00 0.00 0.00 1.00 87.00 257.50 492.50 564.00 219.00 28.00 0.00 0.00 1649.00
1933 0.00 0.00 0.00 l 10.00 89.00 307.50 483.50 499.00 345.00 16.00 0.00 0.00 1750.00
1934 0.00 0.00 0.00 9.50 157.00 260.50 524.00 406.50 160.00 97.00 0.00 0.00 1614.50
1935 0.00 0.00 0.00 0.00 51.00 186.50 466.50 81.50 y 182.00 17.50 0.00 0.00 903.50
1936 0.00 0.00 0.00 0.00 111.00 215.00 541.00 520.00 275.00 24.00 0.00 0.00 1686.00
1937 0.00 0.00 0.00 0.00 67.00 231.50 415.00 588.00 238.00 34.00 0.00 0.00 1573.50
1938 0.00 0.00 0.00 2.50 33.00 216.00 392.00 568.50 262.00 80.50 2.50 0.00 1557.00
1939 0.00 0.00 0.00 2.50 83.50 160.50 425.00 519.00 242.50 22.00 0.00 0.00 1455.00
1940 0.00 0.00 0.00 0.00 24.50 206.50 382.00 451.00 311.50 79.00 0.00 0.00 1454.50
1941 0.00 0.00 0.00 15.50 113.00 221.50 521.50 515.00 249.50 30.50 0.00 0.00 1666.50
1942 0.00 0.00 0.00 32.50 38.00 149.50 445.00 431.00 210.00 73.00 0.00 0.00 1379.00
1943 0.00 0.00 0.00 20.00 54.50 214.50 460.50 458.50 126.00 74.50 0.00 0.00 1408.50
1944 0.00 0.00 0.00 0.00 112.00 191.50 378.50 448.00 204.50 64.00 3.00 0.00 1401.50
1945 0.00 0.00 0.00 0.00 24.00 158.00 390.00 450.00 186.00 31.50 0.00 0.00 1239.50
1946 0.00 0.00 12.00 12.50 46.00 194.50 439.50 437.50 178.00 38.50 0.00 u 0.00 z 1358.50
1947 0.00 z 0.00 z 0.00 s 4.00 32.50 107.50 357.00 439.00 220.00 111.00 0.00 0.00 1271.00
1948 0.00 0.00 0.00 0.00 115.50 214.00 416.00 465.50 333.50 31.00 0.00 0.00 1575.50
1949 0.00 0.00 0.00 21.00 40.09 b 216.00 473.00 515.00 146.00 38.23 a 3.00 0.00 1452.32
1950 0.00 0.00 0.00 0.00 20.50 188.50 237.00 242.50 203.00 48.00 1.50 0.00 941.00
1951 0.00 0.00 0.00 a 13.50 146.00 159.00 419.53 a 353.00 148.00 23.52 b 0.00 0.00 1262.55
1952 0.00 b 0.00 c 0.00 56.90 a 69.00 232.24 a 396.00 414.00 205.00 20.50 0.00 a 0.00 1393.64
1953 0.00 a 0.00 0.00 3.10 a 16.50 n 222.00 435.03 a 516.50 209.00 80.37 d 2.50 0.00 1468.51
1954 0.00 i 0.00 0.00 a 2.00 57.35 a 259.50 479.50 431.62 e 196.50 17.00 0.50 0.00 1443.97
1955 0.00 a 0.00 a 0.00 c 5.00 103.50 257.50 561.50 635.50 a 234.50 41.33 a 0.00 d 0.00 u 1838.83
1956 0.00 a 0.00 0.00 0.00 59.00 216.00 364.25 a 415.00 129.83 a 76.98 a 5.69 a 0.00 b 1266.75
1957 0.00 e 0.00 0.00 36.21 a 82.67 a 192.93 a 498.00 509.50 185.69 a 38.50 0.00 0.00 b 1543.49
1958 0.00 0.00 b 0.00 k 24.44 c 111.60 a 189.50 405.00 484.50 245.50 24.50 0.00 a 0.00 a 1485.04
1959 0.00 0.00 a 0.00 2.68 b 67.54 c 309.50 539.00 517.50 255.50 10.50 0.00 0.00 1702.21
1960 0.00 0.00 a 0.00 1.55 a 61.00 225.00 460.50 491.50 251.50 58.50 0.00 h 0.00 1549.55
1961 0.00 0.00 a 0.00 5.00 93.00 304.00 474.00 596.00 256.50 65.50 0.00 0.00 1794.00
1962 0.00 0.00 a 0.00 0.00 49.00 170.00 352.37 a 406.00 175.00 75.50 0.00 0.00 1227.87
1963 0.00 0.00 a 1.00 8.28 a 15.50 p 240.00 538.50 472.00 273.50 192.00 0.00 0.00 1725.28
1964 0.00 0.00 0.00 0.00 146.50 178.50 522.50 319.00 138.00 0.00 z 0.00 0.00 1304.50
1965 0.00 0.00 0.00 24.50 71.00 187.50 379.00 390.00 0.00 z 13.36 b 0.00 0.00 1065.36
1966 0.00 0.00 0.00 0.00 93.52 a 282.50 571.36 b 378.50 235.50 25.32 a 0.00 a 0.00 a 1586.70
1967 0.00 0.00 0.00 0.00 39.00 174.50 412.00 379.00 227.50 39.02 b 0.00 0.00 1271.02
1968 0.00 0.00 0.00 10.00 2.50 119.50 335.00 307.50 228.50 50.50 0.00 0.00 1053.50
1969 0.00 0.00 0.00 2.50 62.00 75.50 370.00 497.00 237.50 24.28 a 0.00 0.00 1268.78
1970 0.00 0.00 0.00 0.00 28.50 162.00 515.50 536.50 242.00 9.00 0.00 0.00 1493.50
1971 0.00 0.00 0.00 0.00 29.00 169.50 308.93 b 314.50 252.00 74.50 0.00 0.00 1148.43
1972 0.00 0.00 0.00 0.00 31.00 165.00 284.00 353.00 124.50 14.50 0.00 0.00 972.00
1973 0.00 0.00 0.00 3.50 17.50 141.50 424.50 479.00 224.00 56.00 0.00 0.00 1346.00
1974 0.00 0.00 0.00 0.00 19.50 189.50 433.50 371.00 84.50 0.00 z 0.00 0.00 1098.00
1975 0.00 0.00 0.00 i 0.00 86.50 155.56 c 488.50 435.50 150.00 54.50 13.93 b 0.00 1384.48
1976 0.00 0.00 0.00 5.00 40.50 228.50 493.00 484.00 175.00 21.50 0.00 0.00 a 1447.50
1977 0.00 0.00 b 0.00 4.50 62.50 172.50 378.50 287.27 a 20.00 s 14.50 2.00 0.00 921.77
1978 0.00 0.00 0.00 0.00 a 64.50 179.50 347.50 393.00 252.50 60.00 0.00 0.00 1297.00
1979 0.00 0.00 0.00 0.00 6.50 155.50 291.00 360.00 208.50 17.00 0.00 0.00 1038.50
1980 0.00 0.00 0.00 34.00 102.00 217.00 523.00 463.00 184.50 45.00 0.00 f 0.00 k 1568.50
1981 0.00 0.00 0.00 11.00 66.00 241.50 497.00 545.50 313.50 8.50 1.00 0.00 1684.00
1982 0.00 0.00 a 0.00 14.50 29.50 146.00 387.50 374.00 190.00 19.50 0.00 0.00 1161.00
1983 0.00 c 0.00 0.00 1.50 9.50 123.00 532.50 639.50 234.00 24.50 0.00 0.00 1564.50
1984 0.00 a 0.00 0.00 4.00 98.50 271.50 435.50 508.00 170.50 44.50 0.00 0.00 1532.50
1985 0.00 0.00 0.00 4.00 55.50 158.00 424.50 360.63 a 197.68 b 13.50 0.00 0.00 a 1213.81
1986 0.00 0.00 2.00 15.00 a 78.53 a 229.00 406.00 436.00 161.50 32.00 0.00 0.00 1360.03
1987 0.00 0.00 0.00 23.28 a 84.50 396.00 528.50 503.00 277.22 c 10.50 0.00 0.00 1823.00
1988 0.00 a 0.00 0.00 0.00 a 88.00 274.50 595.50 503.00 226.50 30.00 0.00 0.00 1717.50
1989 0.00 0.00 0.00 0.00 50.00 133.50 485.50 494.00 204.00 32.00 0.00 0.00 1399.00
1990 0.00 0.00 0.00 15.00 19.00 235.00 480.00 458.50 299.00 25.00 6.00 0.00 1537.50
1991 0.00 0.00 0.00 4.00 67.68 a 174.00 385.50 553.50 226.00 9.50 0.00 0.00 1420.18
1992 0.00 0.00 0.00 0.00 74.00 129.50 310.50 361.00 160.50 36.00 0.00 0.00 1071.50
1993 0.00 0.00 0.00 4.00 41.00 115.50 321.50 489.00 75.00 9.00 0.00 0.00 1055.00
1994 0.00 0.00 0.00 29.00 82.00 229.50 415.50 376.00 270.50 48.00 0.00 0.00 1450.50
1995 0.00 0.00 0.00 0.00 71.00 203.00 418.00 528.50 212.50 41.50 0.00 0.00 1474.50
1996 0.00 0.00 0.00 0.00 46.00 144.50 255.00 438.50 235.00 50.00 0.00 0.00 1169.00
1997 0.00 0.00 0.00 3.50 10.50 229.00 360.00 403.50 291.50 51.50 0.00 0.00 1349.50
1998 0.00 0.00 3.00 26.50 116.50 223.50 515.50 598.50 361.00 53.50 0.00 0.00 1898.00
1999 0.00 0.00 0.00 0.00 85.50 242.50 505.50 457.50 222.00 19.00 1.50 0.00 1533.50
2000 0.00 0.00 0.00 2.50 82.50 179.00 450.53 a 532.50 206.00 44.50 2.07 a 0.00 1499.60
2001 0.00 0.00 0.00 29.00 74.00 189.50 476.50 537.50 243.00 42.00 13.50 0.00 1605.00
2002 0.00 0.00 0.00 4.00 56.00 229.00 566.50 408.00 295.50 22.50 0.00 0.00 1581.50
2003 0.00 0.00 0.00 12.50 55.00 129.50 404.00 583.50 280.00 66.50 0.00 0.00 1531.00
2004 0.00 0.00 0.00 4.50 11.00 169.00 417.50 323.50 295.00 37.00 0.00 0.00 1257.50
2005 0.00 0.00 0.00 10.00 35.50 231.50 500.50 480.50 338.00 74.00 0.00 0.00 1670.00
2006 0.00 0.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 51.00 0.00 0.00 51.00
2007 0.00 0.00 0.00 30.00 52.50 211.50 457.00 480.50 269.50 74.50 0.00 0.00 1575.50
2008 0.00 0.00 0.00 4.00 34.00 240.00 454.00 494.50 247.50 29.50 6.00 0.00 1509.50
2009 0.00 0.00 0.00 7.00 83.50 198.00 378.00 365.00 355.00 2.50 0.00 0.00 1389.00
2010 0.00 0.00 0.00 z 25.00 107.50 268.00 600.50 504.00 143.00 77.00 0.00 0.00 1725.00
2011 0.00 0.00 0.00 a 0.00 21.50 145.00 526.50 513.64 b 208.80 e 73.76 b 0.00 0.00 a 1489.20
2012 0.00 0.00 2.00 14.50 100.50 316.00 687.00 543.00 244.00 16.00 0.00 0.00 1923.00
2013 0.00 a 0.00 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 0.00 z 0.00
Period of Record Statistics
MEAN 0.00 0.00 0.24 7.59 63.06 206.85 439.39 449.06 222.41 43.01 0.72 0.00 1425.27
S.D. 0.00 0.00 1.31 10.86 33.77 60.68 82.71 82.40 65.12 30.50 2.14 0.00 241.01
SKEW 0.00 0.00 7.30 2.07 0.35 0.54 0.30 -0.21 0.05 1.56 4.43 0.00 -0.07
MAX 0.00 0.00 12.00 56.90 157.00 396.00 693.50 639.50 375.00 192.00 13.93 0.00 1989.50
MIN 0.00 0.00 0.00 0.00 1.00 75.50 237.00 242.50 62.50 0.00 0.00 0.00 893.02
NO YRS 116 118 113 118 116 118 118 117 116 117 116 116 99