INTL FALLS INTL AP, MINNESOTA

Monthly Total Growing Degree Days

(214026)

Base Temperature = 40 F

File last updated on Apr 6, 2013
*** Note *** Provisional Data *** After Year/Month 201303
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
1906 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 863.00 751.50 620.00 173.00 f 0.00 z 0.00 z 2234.50
1907 0.00 0.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 629.50 363.10 a 0.00 z 0.00 z 0.00 z 992.60
1908 0.00 b 0.00 0.00 z 0.00 z 0.00 z 530.50 701.63 a 526.50 432.93 a 132.50 0.00 z 0.00 a 2324.06
1909 0.00 0.00 0.00 0.00 d 275.00 673.00 819.50 809.50 460.50 183.79 c 22.50 0.00 z 3243.79
1910 0.00 z 0.00 0.00 z 202.50 288.50 820.50 848.50 676.00 468.62 a 240.25 a 0.00 0.00 3544.87
1911 0.00 0.00 17.00 140.00 511.00 826.00 798.50 668.50 400.50 189.62 a 0.00 0.00 3551.12
1912 0.00 a 0.00 0.00 88.50 388.50 652.00 839.00 623.00 483.75 b 244.50 1.00 0.00 b 3320.25
1913 0.00 0.00 1.00 210.50 321.50 790.50 758.35 d 800.50 495.50 137.50 19.50 0.00 3534.85
1914 0.00 0.00 5.00 62.00 489.50 692.00 956.50 731.08 a 524.00 364.00 18.00 0.00 3842.08
1915 0.00 0.00 0.00 306.00 363.50 501.00 708.00 745.00 492.00 216.00 12.00 0.00 3343.50
1916 0.00 0.00 1.03 a 82.50 286.50 562.00 1124.04 d 821.50 517.50 b 0.00 z 0.00 z 0.00 z 3395.07
1917 0.00 h 0.00 0.00 4.00 288.00 194.00 t 264.00 t 325.50 o 461.90 a 24.00 22.50 0.00 800.40
1918 0.00 0.00 77.00 151.00 354.29 c 0.00 z 625.50 g 809.50 298.45 a 195.50 29.00 0.00 1914.73
1919 0.00 0.00 3.50 109.00 530.50 447.50 k 922.00 807.50 450.00 77.50 0.00 a 0.00 2900.00
1920 0.00 0.00 22.00 1.50 352.00 631.03 a 856.00 844.50 680.00 394.00 5.69 a 0.00 3786.72
1921 0.00 0.00 19.00 181.50 525.85 d 785.00 968.50 737.00 550.00 258.00 1.00 0.00 4025.85
1922 0.00 0.00 0.00 31.00 i 600.50 692.00 742.00 811.50 595.00 221.00 9.00 0.00 3671.00
1923 0.00 0.00 a 0.00 a 126.50 446.50 580.50 h 1038.00 0.00 z 0.00 z 163.50 34.66 a 0.00 1809.16
1924 0.00 0.00 c 0.00 53.00 140.50 0.00 z 0.00 z 0.00 z 6.50 z 0.00 z 0.00 z 0.00 193.50
1925 0.00 0.00 23.77 a 153.50 179.00 f 0.00 z 24.50 z 0.00 z 0.00 z 18.50 0.00 a 0.00 195.77
1926 0.00 a 0.00 a 9.82 a 71.54 d 349.50 494.50 765.91 b 613.50 227.68 b 81.50 0.00 0.00 z 2613.95
1927 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
1928 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
1929 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
1930 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
1931 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
1932 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
1933 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
1934 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
1935 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
1936 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
1937 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
1938 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
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 0.00 z 811.17 a 764.09 d 554.00 182.50 24.50 0.00 2336.26
1949 0.00 0.00 0.00 157.00 345.50 654.00 799.50 830.00 328.50 153.50 7.50 0.00 3275.50
1950 0.00 0.00 0.00 9.50 268.50 425.00 g 639.50 555.00 435.50 184.00 0.00 0.00 2092.00
1951 0.00 0.00 0.00 49.00 457.00 563.50 747.50 609.00 331.50 148.00 0.00 2.00 2907.50
1952 0.00 0.00 0.00 261.00 357.00 670.00 784.00 678.00 461.00 61.00 0.50 0.00 3272.50
1953 0.00 0.00 1.50 29.50 328.00 614.50 758.00 819.00 352.50 300.50 33.50 0.00 3237.00
1954 0.00 0.00 0.00 28.50 217.00 652.00 808.50 660.00 342.00 115.00 8.00 0.00 2831.00
1955 0.00 0.00 7.00 222.00 450.00 674.00 919.00 837.00 a 377.00 173.00 0.00 0.00 3659.00
1956 0.00 0.00 0.00 0.00 211.50 749.00 672.00 673.50 268.00 259.50 49.50 0.00 2883.00
1957 0.00 0.00 0.00 148.50 343.50 501.50 886.50 676.50 335.50 157.00 0.00 0.00 3049.00
1958 0.00 6.00 2.50 118.50 322.50 454.50 723.50 651.00 427.00 170.50 17.50 0.00 2893.50
1959 0.00 0.00 1.50 37.50 375.50 701.50 833.50 790.50 398.00 83.50 0.00 0.00 3221.50
1960 0.00 0.00 0.00 72.00 401.00 540.00 781.00 801.00 403.00 172.00 0.00 0.00 3170.00
1961 0.00 0.00 9.00 26.50 333.00 703.00 828.00 789.43 b 368.00 168.50 7.00 0.00 3232.43
1962 0.00 0.00 0.00 54.50 388.00 648.50 707.50 713.00 357.50 223.00 7.50 7.00 3106.50
1963 0.00 a 0.00 36.50 96.50 302.00 717.50 848.00 711.00 512.50 433.50 14.00 0.00 3671.50
1964 0.00 0.00 3.50 97.00 456.50 590.50 871.50 612.50 334.50 164.00 44.00 0.00 3174.00
1965 0.00 0.00 0.00 43.50 379.00 583.50 717.00 678.50 214.00 158.50 14.50 0.00 2788.50
1966 0.00 0.00 2.00 26.00 256.50 689.50 912.50 705.50 422.50 112.50 0.00 0.00 3127.00
1967 0.00 0.00 17.00 46.00 240.00 607.50 758.50 683.00 504.00 105.50 0.00 0.00 2961.50
1968 0.00 0.00 24.50 76.50 271.00 583.00 783.00 660.50 478.50 175.50 0.00 0.00 3052.50
1969 0.00 0.00 0.00 152.50 295.00 398.50 775.50 854.00 447.50 59.50 28.50 0.00 3011.00
1970 0.00 0.00 0.00 59.00 229.00 748.50 934.00 779.00 467.00 170.50 0.00 0.00 3387.00
1971 0.00 0.00 0.00 115.50 319.00 730.50 683.00 722.00 471.50 192.00 0.00 0.00 3233.50
1972 0.00 0.00 0.00 92.50 607.50 683.50 739.50 793.00 337.50 123.00 1.00 0.00 3377.50
1973 0.00 0.00 7.00 82.00 374.50 740.50 879.00 874.50 390.00 258.00 0.00 0.00 3605.50
1974 0.00 0.00 0.00 81.00 245.00 641.50 931.00 672.50 271.00 147.00 6.50 0.00 2995.50
1975 0.00 0.00 0.00 20.00 469.50 635.50 936.00 686.00 320.50 202.50 59.00 0.00 3329.00
1976 0.00 0.00 3.00 119.50 370.50 738.00 805.00 769.50 413.50 100.00 0.00 0.00 3319.00
1977 0.00 0.00 9.50 185.50 650.00 654.50 824.50 527.00 375.50 129.50 25.50 0.00 3381.50
1978 0.00 0.00 0.00 67.00 481.50 587.50 728.50 712.00 480.00 164.50 28.00 0.00 3249.00
1979 0.00 0.00 0.00 52.50 216.00 582.50 815.50 624.00 386.00 39.00 0.00 0.00 2715.50
1980 0.00 0.00 0.00 213.00 581.50 670.00 892.50 772.50 386.00 85.50 2.00 0.00 3603.00
1981 0.00 0.00 8.00 85.00 419.00 644.00 887.00 861.00 426.50 130.00 66.00 0.00 3526.50
1982 0.00 0.00 0.00 127.50 490.00 486.00 846.00 652.00 409.00 176.50 0.00 2.00 3189.00
1983 0.00 0.00 0.00 62.00 288.00 656.00 917.50 884.50 455.50 95.50 7.50 0.00 3366.50
1984 0.00 0.00 0.00 154.00 290.50 646.00 778.00 857.00 284.00 237.00 5.50 0.00 3252.00
1985 0.00 0.00 0.00 157.00 443.50 435.00 732.00 621.00 340.50 122.00 1.00 0.00 2852.00
1986 0.00 0.00 26.00 125.50 500.50 613.00 826.00 656.00 372.00 108.00 1.00 0.00 3228.00
1987 0.00 0.00 33.50 283.50 489.00 723.00 864.50 695.00 485.50 54.00 23.00 0.00 3651.00
1988 0.00 0.00 0.50 83.00 572.00 825.50 879.00 780.00 414.50 108.50 0.00 0.00 3663.00
1989 0.00 0.00 10.50 71.00 430.00 605.50 920.00 781.00 450.00 174.00 1.50 0.00 3443.50
1990 0.00 0.00 23.00 172.00 310.50 694.50 799.00 804.50 466.50 82.50 27.00 0.00 3379.50
1991 0.00 2.50 1.00 174.50 577.00 782.00 818.00 862.50 368.00 59.50 0.00 0.00 3645.00
1992 0.00 0.00 0.00 53.50 468.50 531.00 601.00 629.50 391.00 139.00 0.00 0.00 2813.50
1993 0.00 0.00 14.50 41.00 338.00 558.00 755.50 774.50 258.50 65.50 0.00 0.00 2805.50
1994 0.00 0.00 0.50 77.00 445.00 721.50 766.50 673.50 534.50 250.50 17.50 0.00 3486.50
1995 0.00 0.00 18.00 18.50 386.00 843.00 802.00 838.00 406.00 118.50 0.00 0.00 3430.00
1996 0.00 0.00 2.00 19.50 317.00 714.00 776.00 808.50 465.00 139.00 0.00 0.00 3241.00
1997 0.00 0.00 0.00 53.50 208.50 679.00 748.50 638.50 490.50 218.00 0.00 0.00 3036.50
1998 0.00 0.00 17.00 145.00 493.00 600.00 753.00 811.50 494.50 147.00 0.00 0.00 3461.00
1999 0.00 c 0.00 1.00 112.50 444.50 628.50 823.50 683.00 357.00 72.50 31.00 0.00 a 3153.50
2000 0.00 2.07 a 41.50 107.50 425.00 524.00 811.50 738.00 367.00 174.50 32.50 0.00 3223.57
2001 0.00 0.00 0.00 118.00 433.00 672.00 827.18 a 793.50 429.50 92.50 63.00 0.00 a 3428.68
2002 0.00 0.00 0.00 93.00 225.50 702.50 882.00 745.50 505.50 39.50 0.00 0.00 3193.50
2003 0.00 0.00 20.50 118.00 410.00 630.50 747.50 827.50 432.50 166.00 1.00 0.00 3353.50
2004 0.00 0.00 2.00 44.00 194.00 482.50 707.50 497.50 555.00 156.00 8.00 0.00 2646.50
2005 0.00 0.00 7.50 170.00 325.00 676.50 805.00 663.50 473.00 150.00 4.50 0.00 3275.00
2006 0.00 0.00 3.50 228.50 454.50 657.50 886.50 714.50 389.50 96.50 17.50 0.00 3448.50
2007 0.00 0.00 15.00 127.00 466.00 688.50 792.00 668.00 418.50 175.50 10.50 0.00 3361.00
2008 0.00 0.00 0.00 41.00 190.00 537.50 693.00 687.50 402.50 131.00 48.50 0.00 2731.00
2009 0.00 0.00 6.00 69.50 209.50 532.50 583.00 628.50 591.00 47.50 17.00 0.00 2684.50
2010 0.00 0.00 45.50 187.00 413.00 565.50 815.00 801.00 296.00 215.50 44.50 0.00 3383.00
2011 0.00 0.00 3.00 79.50 346.00 562.00 852.00 750.00 392.50 253.00 10.00 0.00 3248.00
2012 0.00 0.00 153.00 70.50 402.50 686.00 899.50 682.50 349.00 86.50 2.50 0.00 3332.00
2013 0.00 0.00 a 0.00 a 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 0.12 9.23 101.88 376.03 640.28 812.81 726.82 421.00 156.04 12.27 0.14 3257.96
S.D. 0.00 0.73 20.67 67.87 111.35 95.53 90.80 88.07 88.30 78.07 16.53 0.83 292.82
SKEW 0.00 6.77 4.76 0.77 0.22 -0.17 0.33 -0.31 0.17 0.96 1.51 7.32 -0.04
MAX 0.00 6.00 153.00 306.00 650.00 843.00 1124.04 884.50 680.00 433.50 66.00 7.00 4025.85
MIN 0.00 0.00 0.00 0.00 140.50 398.50 583.00 497.50 214.00 18.50 0.00 0.00 2646.50
NO YRS 83 85 82 81 81 76 81 82 83 82 81 81 70