TWO HARBORS, MINNESOTA

Monthly Total Growing Degree Days

(218419)

Base Temperature = 40 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 1.00 81.50 267.00 655.50 799.00 723.50 544.50 236.50 12.93 a 5.50 3326.93
1895 0.00 0.00 4.50 115.50 326.50 525.50 693.50 777.00 537.50 143.50 33.00 0.00 3156.50
1896 0.00 1.00 0.00 71.50 375.00 568.50 722.50 722.00 389.50 142.50 1.00 0.00 2993.50
1897 0.00 0.00 0.00 90.00 215.00 419.00 743.50 697.50 617.00 253.50 8.50 0.00 3044.00
1898 0.00 z 6.00 9.00 62.50 292.50 448.50 757.00 707.00 499.00 124.00 25.50 0.00 2931.00
1899 0.00 2.00 0.00 47.50 197.50 461.50 675.50 701.00 427.50 235.50 67.00 3.50 2818.50
1900 0.00 0.00 0.00 55.50 177.00 585.50 677.00 806.50 475.00 316.00 6.50 0.00 3099.00
1901 0.00 a 0.00 0.00 66.21 a 252.50 453.00 736.50 766.73 a 424.00 156.00 0.00 0.00 2854.94
1902 0.00 0.00 a 3.50 31.00 236.00 389.50 706.50 577.50 301.50 117.69 d 16.50 0.00 2379.69
1903 0.00 0.00 2.38 e 50.00 198.50 455.00 664.00 573.00 362.07 a 167.50 41.50 0.00 a 2513.95
1904 0.00 0.00 0.00 16.50 262.00 444.00 655.13 a 671.00 382.00 168.50 47.00 0.00 a 2646.13
1905 0.00 0.00 12.00 114.50 344.00 627.50 847.00 880.00 640.00 214.50 15.00 0.00 3694.50
1906 0.00 0.00 0.00 118.50 179.00 469.50 776.00 814.50 674.00 181.50 25.00 0.00 3238.00
1907 0.00 0.00 3.00 1.00 92.00 501.00 727.00 623.50 419.00 147.00 11.50 0.00 2525.00
1908 0.00 0.00 0.00 112.50 276.00 496.00 722.00 718.00 602.00 236.00 3.00 0.00 3165.50
1909 0.00 0.00 0.00 7.00 221.00 498.00 699.50 783.00 487.00 170.00 45.50 2.00 2913.00
1910 0.00 0.00 97.00 96.00 217.00 633.50 855.00 745.00 503.50 279.50 0.00 0.00 3426.50
1911 0.00 0.00 30.00 47.00 325.50 570.50 712.50 700.00 437.00 183.00 0.00 0.00 3005.50
1912 0.00 0.00 4.00 53.00 223.00 523.50 706.00 606.00 510.00 231.00 18.00 0.00 2874.50
1913 0.00 0.00 2.00 89.00 199.50 518.00 651.50 750.50 481.00 208.50 57.00 7.00 2964.00
1914 0.00 0.00 3.00 29.00 371.50 474.00 723.00 723.50 522.41 a 296.50 29.00 0.00 3171.91
1915 0.00 0.00 0.00 209.00 204.50 386.00 604.50 674.00 504.00 186.00 13.00 0.00 2781.00
1916 0.00 0.00 0.00 102.50 266.50 405.50 834.00 845.00 464.50 195.00 32.00 0.00 3145.00
1917 0.00 0.00 1.00 2.00 165.00 389.50 719.50 634.00 431.50 71.00 55.50 0.00 2469.00
1918 0.00 0.00 56.00 36.50 308.50 531.50 835.50 831.50 408.00 276.00 58.00 3.50 3345.00
1919 0.00 0.00 2.00 62.50 321.00 506.50 883.50 847.00 570.50 178.50 8.50 0.00 3380.00
1920 0.00 0.00 15.50 25.00 332.00 530.00 756.50 792.00 644.50 406.00 13.50 0.00 3515.00
1921 0.00 0.00 8.00 139.50 338.00 671.50 1003.50 771.50 611.00 211.50 1.00 0.00 3755.50
1922 0.00 0.00 0.00 24.00 346.00 521.50 691.50 790.00 564.00 243.00 52.50 0.00 3232.50
1923 0.00 0.00 0.00 95.00 293.50 573.50 766.73 a 724.50 561.50 258.50 50.50 3.00 3326.73
1924 0.00 0.00 1.00 28.50 220.00 497.00 688.00 696.50 450.50 347.00 22.50 0.00 2951.00
1925 0.00 0.00 16.50 102.00 253.00 546.00 771.50 832.50 546.50 59.50 8.50 0.00 3136.00
1926 0.00 0.00 4.00 53.50 241.50 485.00 675.50 730.50 346.50 122.00 0.00 0.00 2658.50
1927 0.00 0.00 0.00 28.00 141.00 342.50 610.50 604.50 546.50 200.00 5.50 0.00 2478.50
1928 0.00 0.00 15.00 24.00 335.50 401.00 672.00 741.00 395.50 225.00 34.50 1.50 2845.00
1929 0.00 0.00 6.50 60.00 212.00 470.00 818.00 793.00 464.50 282.00 25.00 0.00 3131.00
1930 0.00 3.00 0.00 73.50 279.50 613.50 747.00 863.50 491.00 162.50 51.00 0.00 3284.50
1931 0.00 0.00 0.00 120.00 299.00 511.00 879.50 776.00 602.50 371.50 63.50 0.00 3623.00
1932 0.00 9.00 0.00 60.00 310.50 555.00 802.50 874.00 514.50 172.50 21.00 0.00 3319.00
1933 0.00 0.00 1.00 l 57.00 297.50 605.50 793.50 809.00 645.00 162.50 1.50 0.00 3371.50
1934 0.00 0.00 0.50 80.50 441.50 547.50 834.00 714.50 441.50 313.50 30.50 0.00 3404.00
1935 0.00 0.00 1.00 37.00 225.00 464.00 776.50 141.50 y 459.00 166.00 0.00 0.00 2128.50
1936 0.00 0.00 0.00 31.00 324.00 502.50 851.00 830.00 561.50 150.50 5.50 0.00 3256.00
1937 0.00 0.00 0.00 43.00 312.50 527.00 725.00 898.00 523.00 164.50 16.50 0.00 3209.50
1938 0.00 0.00 22.00 75.50 235.50 515.00 702.00 878.50 560.00 332.50 37.00 0.00 3358.00
1939 0.00 0.00 10.50 48.00 291.00 448.50 735.00 829.00 516.50 183.00 19.50 8.50 3089.50
1940 0.00 0.00 0.00 18.00 212.00 500.50 692.00 761.00 606.00 334.00 30.50 0.00 3154.00
1941 0.00 0.00 0.00 109.00 351.00 493.50 831.50 825.00 543.00 252.00 9.50 14.50 3429.00
1942 3.50 0.00 1.00 176.50 244.00 443.50 755.00 741.00 439.50 278.00 10.50 0.00 3092.50
1943 0.00 0.00 5.00 90.00 266.50 492.00 770.50 768.50 388.50 235.50 4.00 0.00 3020.50
1944 0.00 0.00 0.00 34.50 307.00 466.50 688.50 758.00 499.50 269.00 40.00 0.00 3063.00
1945 0.00 0.00 59.50 38.50 180.00 409.00 700.00 760.00 467.00 152.50 0.50 0.00 2767.00
1946 0.00 0.00 55.50 128.50 229.00 472.50 749.50 747.50 464.00 209.50 20.00 u 0.00 z 3056.00
1947 0.00 z 0.00 z 1.50 s 27.00 192.00 354.00 667.00 749.00 461.00 364.50 27.50 0.00 2842.00
1948 0.00 0.00 4.00 66.50 318.50 504.00 726.00 775.00 633.50 247.50 40.50 0.00 3315.50
1949 0.00 0.00 0.00 125.50 292.36 b 508.00 783.00 825.00 428.00 231.98 a 33.50 0.00 3227.35
1950 0.00 0.00 0.00 24.00 186.00 487.00 542.50 552.00 500.50 271.00 12.50 0.00 2575.50
1951 0.00 0.00 0.00 a 63.00 411.50 436.00 729.53 a 663.00 403.00 182.79 b 11.00 7.00 2906.83
1952 0.00 b 0.00 c 0.00 190.34 a 330.50 527.07 a 706.00 724.00 496.50 154.50 11.90 a 0.00 3140.81
1953 0.00 a 0.00 7.00 44.48 a 140.00 n 510.50 745.03 a 826.50 500.00 294.50 d 67.50 0.00 2995.52
1954 0.00 i 0.00 0.00 a 85.00 232.50 a 558.00 789.50 741.62 e 492.00 181.50 41.00 0.00 3121.12
1955 0.00 a 0.00 a 0.00 c 146.00 351.00 556.00 871.50 945.50 a 517.50 239.22 a 0.00 d 0.00 u 3626.72
1956 0.00 a 0.00 1.50 24.50 277.50 515.00 674.25 a 725.00 407.07 a 345.65 a 66.72 a 0.00 b 3037.19
1957 0.00 e 0.00 0.00 114.83 a 295.02 a 487.76 a 808.00 819.50 461.38 a 239.50 29.50 0.00 b 3255.48
1958 0.00 1.08 b 0.00 k 135.00 c 346.17 a 477.00 715.00 794.50 541.00 228.00 49.66 a 0.00 a 3287.40
1959 0.00 0.00 a 12.00 95.89 b 338.23 c 609.50 849.00 827.50 537.50 127.50 0.50 0.00 3397.62
1960 0.00 0.00 a 2.50 89.48 a 270.50 523.00 770.50 801.50 540.00 249.00 8.50 h 1.00 3247.48
1961 0.00 0.00 a 2.00 37.00 314.00 603.50 784.00 906.00 517.50 246.00 20.50 0.00 3430.50
1962 0.00 0.00 a 0.00 52.50 264.00 448.50 662.37 a 716.00 464.50 278.00 13.00 8.50 2907.37
1963 0.00 0.00 a 18.50 53.28 a 126.00 p 533.50 848.50 782.00 568.50 489.00 42.00 0.00 3335.28
1964 0.00 0.00 1.00 49.00 410.50 469.00 831.00 625.00 412.50 0.00 z 49.50 0.00 2847.50
1965 0.00 0.00 0.00 66.50 298.50 465.50 689.00 700.00 0.00 z 187.60 b 19.50 0.00 2426.60
1966 0.00 0.00 2.00 26.50 282.10 a 577.50 881.36 b 688.50 520.50 174.12 a 4.14 a 0.00 a 3156.72
1967 0.00 0.00 15.00 29.00 196.50 453.50 722.00 688.50 502.50 184.93 b 16.50 0.00 2808.43
1968 0.00 0.00 27.50 97.00 166.00 407.50 644.50 615.00 526.50 227.50 16.50 0.00 2728.00
1969 0.00 0.00 0.00 72.00 291.00 345.00 673.50 807.00 529.50 152.42 a 13.50 0.00 2883.92
1970 0.00 0.00 0.00 44.00 170.00 455.50 825.50 846.50 517.50 160.50 12.00 0.00 3031.50
1971 0.00 0.00 0.00 75.00 209.50 448.50 618.93 b 624.50 543.00 328.50 10.50 0.00 2858.43
1972 0.00 0.00 0.00 27.00 227.00 443.00 590.00 663.00 388.50 143.50 2.50 0.00 2484.50
1973 0.00 0.00 2.00 49.50 208.00 435.00 734.50 789.00 506.00 286.00 8.50 0.00 3018.50
1974 0.00 0.00 0.00 39.00 174.50 488.50 743.50 681.00 336.50 0.00 z 13.00 0.00 2476.00
1975 0.00 0.00 0.00 i 15.50 327.50 449.44 c 798.50 745.50 428.00 260.00 108.75 b 0.00 3133.19
1976 0.00 10.50 8.00 81.50 253.00 525.50 803.00 794.00 457.50 121.00 5.00 0.00 a 3059.00
1977 0.00 0.00 b 9.00 89.00 299.50 452.50 688.50 597.27 a 117.00 s 209.00 43.50 0.00 2388.27
1978 0.00 0.00 0.00 18.62 a 263.50 461.50 657.00 703.00 551.00 273.50 55.50 0.00 2983.62
1979 0.00 0.00 0.00 33.00 157.00 440.50 599.00 670.00 508.50 152.50 9.00 0.00 2569.50
1980 0.00 0.00 0.00 150.50 360.00 509.00 833.00 773.00 464.00 157.50 22.50 f 0.00 k 3247.00
1981 0.00 5.00 16.00 112.00 303.50 535.50 807.00 855.50 597.50 172.00 64.00 0.00 3468.00
1982 0.00 0.00 a 0.00 90.50 274.00 437.50 697.50 684.00 483.00 242.00 14.50 5.00 2928.00
1983 0.00 c 0.00 0.00 52.00 139.00 403.00 842.50 949.50 519.50 211.00 42.50 0.00 3159.00
1984 0.00 a 0.00 0.00 99.00 303.00 567.00 745.50 818.00 430.50 245.50 14.00 0.00 3222.50
1985 0.00 0.00 16.50 129.00 303.50 453.50 734.50 670.63 a 463.39 b 178.00 12.00 0.00 a 2961.03
1986 0.00 0.00 37.00 133.97 a 292.95 a 514.00 716.00 746.00 453.50 193.50 7.50 0.00 3094.42
1987 0.00 0.00 21.50 176.90 a 295.50 696.00 838.50 813.00 577.22 c 123.00 40.50 0.00 3582.12
1988 0.00 a 0.00 1.00 67.24 a 323.00 568.50 905.50 813.00 525.50 145.50 0.00 0.00 3349.24
1989 0.00 0.00 0.00 36.50 264.00 404.00 795.50 804.00 481.50 169.00 3.50 0.00 2958.00
1990 0.00 0.00 6.00 107.00 206.50 528.00 790.00 768.50 596.50 182.00 55.50 2.50 3242.50
1991 0.00 5.00 2.00 95.00 264.53 a 467.00 690.00 863.50 493.00 128.50 1.50 0.00 3010.03
1992 0.00 0.00 1.00 40.50 291.00 392.50 616.00 671.00 437.00 177.50 3.00 0.00 2629.50
1993 3.00 0.00 1.50 44.00 254.50 402.00 631.50 799.00 328.50 104.00 0.00 0.00 2568.00
1994 0.00 0.00 10.00 115.50 322.50 520.00 725.50 686.00 563.00 283.00 43.50 0.00 3269.00
1995 0.00 0.00 2.50 15.50 303.00 484.00 728.00 838.50 475.50 210.00 2.00 0.00 3059.00
1996 0.00 0.00 1.50 35.50 193.00 438.00 565.00 748.50 529.00 243.50 8.50 0.00 2762.50
1997 0.00 0.00 0.00 39.50 169.50 527.50 670.00 713.50 591.50 197.50 3.00 1.00 2913.00
1998 0.00 0.50 25.00 129.00 389.00 520.50 825.50 908.50 660.00 295.50 31.00 11.00 3795.50
1999 0.00 0.50 13.00 59.50 329.50 530.00 815.50 767.50 508.50 190.50 55.50 0.00 3270.00
2000 0.00 7.00 24.50 78.50 341.50 452.00 760.53 a 842.50 494.00 235.00 45.00 a 0.00 3280.53
2001 0.00 0.00 0.00 94.00 336.50 483.00 786.50 847.50 533.00 225.50 126.50 0.00 3432.50
2002 1.50 0.00 0.00 75.00 188.00 516.00 876.50 718.00 575.00 97.50 5.50 0.00 3053.00
2003 1.00 0.00 18.00 93.50 262.50 420.50 714.00 893.50 561.00 206.50 18.00 0.00 3188.50
2004 0.00 0.00 0.00 86.50 194.50 458.50 727.50 633.00 594.50 230.00 47.00 0.00 2971.50
2005 0.00 1.00 15.50 89.50 241.00 528.50 809.50 790.50 635.50 267.50 40.50 0.00 3419.00
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 153.50 25.00 0.00 178.50
2007 0.00 0.00 20.50 133.00 283.50 506.50 767.00 790.50 559.00 303.50 38.50 0.00 3402.00
2008 0.00 0.00 0.00 63.50 233.50 530.50 764.00 804.50 547.00 239.00 48.00 0.00 3230.00
2009 0.00 0.00 5.50 62.00 332.50 475.50 688.00 675.00 647.00 130.50 76.50 0.00 3092.50
2010 0.00 0.00 0.00 z 213.50 336.00 568.00 910.50 814.00 433.00 300.00 37.00 0.00 3612.00
2011 0.00 2.00 0.00 a 57.00 209.00 437.50 836.50 823.64 b 471.00 e 271.52 b 36.50 0.00 a 3144.66
2012 0.50 0.00 83.00 95.00 375.00 616.00 997.00 853.00 526.00 128.00 14.50 0.00 3688.00
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 0.08 0.45 7.84 73.08 269.83 494.81 749.11 758.94 503.61 215.79 25.87 0.73 3087.11
S.D. 0.46 1.66 15.93 43.72 65.99 67.16 83.06 82.56 75.73 71.56 23.40 2.31 303.58
SKEW 6.28 4.30 3.39 0.87 -0.06 0.36 0.28 -0.21 -0.11 0.69 1.31 3.77 -0.14
MAX 3.50 10.50 97.00 213.50 441.50 696.00 1003.50 949.50 674.00 489.00 126.50 14.50 3795.50
MIN 0.00 0.00 0.00 1.00 92.00 342.50 542.50 552.00 301.50 59.50 0.00 0.00 2379.69
NO YRS 116 118 113 118 116 118 118 117 116 117 116 116 99