ITASCA UNIV OF MINN, MINNESOTA

Monthly Total Growing Degree Days

(214106)

Base Temperature = 40 F

File last updated on Apr 6, 2013
*** Note *** Provisional Data *** After Year/Month 201304
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
1911 0.00 z 0.00 z 0.00 z 0.00 z 624.02 d 867.32 b 822.02 a 729.00 467.50 234.00 0.00 0.00 3743.86
1912 0.00 0.00 0.00 175.00 437.50 659.50 818.50 565.00 h 531.21 a 317.50 27.00 0.00 z 2966.21
1913 0.00 0.00 0.00 222.50 325.00 737.50 743.50 815.50 468.50 168.00 24.50 0.00 3505.00
1914 0.00 0.00 1.50 79.00 482.50 654.00 824.00 686.65 a 530.00 258.00 12.00 0.00 3527.65
1915 0.00 a 0.00 0.00 307.00 268.00 490.00 649.50 577.50 481.00 197.50 1.00 0.00 2971.50
1916 0.00 0.00 1.00 57.00 291.00 461.90 a 986.04 e 722.00 394.62 d 121.50 26.50 0.00 3061.55
1917 0.00 0.00 0.00 a 35.69 a 283.00 537.00 931.50 680.50 469.00 50.38 c 26.00 0.00 3013.06
1918 0.00 0.00 68.00 127.00 420.50 612.50 749.00 765.50 253.00 185.50 14.50 0.00 3195.50
1919 0.00 0.00 6.20 a 140.00 443.50 808.00 925.50 670.50 463.50 79.50 0.00 k 0.00 h 3536.70
1920 0.00 z 0.00 31.50 21.21 a 358.05 a 647.00 761.57 a 746.00 578.00 304.50 7.00 0.00 e 3454.82
1921 0.00 k 0.00 6.50 168.00 454.00 830.00 958.50 787.00 460.00 c 179.50 0.00 0.00 3843.50
1922 0.00 0.00 0.00 87.93 a 536.50 723.00 e 756.00 855.50 534.00 207.00 20.00 0.00 3719.93
1923 0.00 0.00 2.00 120.50 413.00 764.00 927.70 d 659.00 538.00 224.00 7.24 a 0.00 3655.45
1924 0.00 0.00 0.00 z 74.00 130.00 440.00 648.00 518.00 292.00 0.00 z 0.00 z 0.00 z 2102.00
1925 0.00 z 0.00 z 0.00 z 110.17 a 296.00 517.50 598.50 611.50 271.50 l 15.00 5.00 0.00 2153.67
1926 0.00 0.00 11.50 144.50 521.00 521.38 a 823.00 724.00 387.50 102.00 0.00 c 0.00 3234.88
1927 0.00 e 0.00 8.50 94.00 227.00 611.50 703.00 601.50 444.00 129.00 f 0.00 0.00 2689.50
1928 1.00 0.00 21.00 0.00 z 309.00 m 501.00 781.95 b 712.00 338.50 137.50 13.50 0.00 2506.45
1929 0.00 0.00 9.00 86.00 299.15 a 588.50 827.00 736.50 387.93 a 161.95 b 0.00 a 0.00 3096.03
1930 0.00 4.00 0.00 a 116.38 a 356.50 648.00 883.50 835.50 456.00 198.00 14.00 0.00 a 3511.88
1931 0.00 0.00 0.00 139.50 346.00 757.00 853.00 711.00 606.50 253.00 45.00 0.00 3711.00
1932 0.00 5.50 0.00 a 95.00 406.50 756.50 847.00 481.00 k 438.00 109.00 6.00 0.00 2663.50
1933 0.00 0.00 4.50 95.00 423.00 861.21 a 928.50 752.00 555.50 103.50 4.00 0.00 3727.21
1934 0.00 a 0.00 0.00 81.50 596.50 658.50 809.00 335.50 m 361.00 280.00 13.00 0.00 2799.50
1935 0.00 0.00 8.00 71.00 240.50 518.50 997.00 759.00 406.00 196.50 0.00 0.00 3196.50
1936 0.00 0.00 0.00 20.50 551.50 608.00 1013.70 a 809.00 578.50 115.50 2.50 0.00 3699.20
1937 0.00 0.00 0.00 42.41 a 422.12 a 627.50 894.50 928.50 453.50 99.00 5.00 0.00 3472.53
1938 0.00 0.00 w 40.00 n 145.50 316.00 660.50 842.50 878.00 485.50 295.50 23.00 0.00 a 3646.50
1939 0.00 0.00 24.00 96.00 571.50 646.00 897.50 820.50 518.50 134.50 5.00 6.50 3720.00
1940 0.00 0.00 0.00 64.50 353.50 604.00 862.50 727.50 586.50 258.50 1.50 0.00 3458.50
1941 0.00 0.00 1.00 220.00 546.00 715.50 918.50 783.50 497.00 221.00 7.50 11.50 3921.50
1942 0.00 0.00 0.00 275.50 313.50 601.50 783.50 766.00 397.00 294.50 6.50 0.00 3438.00
1943 0.00 0.00 10.00 109.50 310.00 671.50 952.50 812.50 412.00 247.00 0.00 0.00 3525.00
1944 0.00 0.00 0.00 66.00 489.50 688.50 813.50 767.50 443.00 207.00 26.00 0.00 3501.00
1945 0.00 0.00 75.00 62.50 232.00 505.00 781.00 751.00 403.50 149.50 0.00 0.00 2959.50
1946 0.00 0.00 75.50 171.50 316.50 644.00 843.50 695.00 412.00 148.50 6.00 0.00 3312.50
1947 0.00 0.00 1.00 51.00 230.00 547.50 866.50 916.50 455.00 390.00 24.50 0.00 3482.00
1948 0.00 0.00 1.00 147.00 367.50 595.00 829.00 781.00 400.00 l 226.41 c 18.50 0.00 2965.41
1949 0.00 0.00 0.00 169.50 434.50 703.00 861.50 852.00 380.00 206.50 19.50 0.00 a 3626.50
1950 0.00 0.00 0.00 7.50 264.00 620.00 741.00 646.98 d 513.50 196.00 9.50 0.00 2998.48
1951 0.00 0.00 0.00 52.76 a 464.00 519.00 770.00 644.50 367.24 a 183.00 2.00 1.03 a 3003.53
1952 0.00 0.00 0.00 232.50 361.00 705.50 805.00 699.50 557.50 110.50 20.50 0.00 a 3492.00
1953 0.00 0.00 1.50 35.00 375.00 677.50 792.00 852.50 455.00 385.00 55.00 0.00 a 3628.50
1954 0.00 0.00 0.00 87.50 272.50 681.50 852.00 723.00 426.00 172.50 25.86 a 0.00 3240.86
1955 0.00 0.00 6.50 233.00 545.50 673.97 a 955.50 913.00 482.00 252.00 0.50 0.00 4061.97
1956 0.00 0.00 0.00 2.50 324.50 794.00 725.50 741.00 360.50 350.50 47.50 2.07 a 3348.07
1957 0.00 0.00 0.00 167.00 382.50 584.50 967.20 a 761.00 401.50 211.32 a 5.50 0.00 3480.52
1958 0.00 10.50 1.00 128.50 442.00 487.50 747.50 754.00 482.50 205.50 17.00 0.00 a 3276.00
1959 0.00 0.00 4.50 83.79 a 429.50 718.50 855.50 865.50 471.00 85.50 0.00 0.00 a 3513.79
1960 0.00 0.00 0.00 109.00 395.00 603.00 869.50 843.00 538.45 a 231.00 2.07 a 0.00 3591.02
1961 0.00 6.00 22.00 33.00 366.00 774.00 827.50 928.50 488.00 245.00 9.50 0.00 3699.50
1962 0.00 0.00 0.00 110.50 446.00 696.50 771.00 795.50 398.50 275.50 7.00 7.00 3507.50
1963 0.00 0.00 56.00 117.00 348.00 771.00 890.00 793.50 553.00 465.50 23.00 0.00 4017.00
1964 0.00 0.00 1.50 114.00 486.00 629.00 866.50 645.50 395.50 177.00 60.00 0.00 3375.00
1965 0.00 0.00 0.00 47.00 377.00 645.50 796.50 750.00 217.00 178.50 23.50 0.00 3035.00
1966 0.00 0.00 1.50 24.00 271.50 667.50 943.50 692.50 457.50 159.50 0.00 0.00 3217.50
1967 0.00 0.00 34.00 71.50 242.00 613.00 804.50 749.17 a 509.50 156.00 8.00 0.00 3187.67
1968 0.00 0.00 74.50 132.50 341.50 673.00 806.50 767.50 499.29 b 215.50 3.00 0.00 3513.29
1969 0.00 0.00 0.00 145.34 a 436.50 490.50 831.00 929.00 525.50 96.00 34.00 0.00 a 3487.84
1970 0.00 0.00 0.00 84.00 343.00 759.64 b 943.00 826.50 542.50 202.00 0.00 0.00 3700.64
1971 0.00 0.00 4.50 152.00 350.19 d 789.00 730.50 779.13 a 513.50 274.50 1.50 0.00 a 3594.82
1972 0.00 0.00 3.00 69.00 559.00 687.93 a 758.50 802.00 375.00 134.50 1.50 0.00 3390.43
1973 0.00 0.00 32.00 114.50 407.50 724.50 823.50 921.00 467.00 331.50 3.50 0.00 3825.00
1974 0.00 0.00 0.00 133.00 306.90 a 680.00 981.00 705.00 356.00 207.00 14.50 0.00 3383.40
1975 0.00 0.00 1.00 26.00 499.00 683.50 952.00 785.50 399.50 259.00 64.50 0.00 3670.00
1976 0.00 2.50 13.50 191.50 431.50 789.00 888.00 912.50 545.00 163.50 5.50 0.00 3942.50
1977 0.00 b 0.00 43.50 283.50 760.50 724.50 927.50 628.50 462.00 190.50 36.00 0.00 4056.50
1978 0.00 0.00 13.50 89.50 542.50 677.50 848.00 824.50 595.50 200.00 49.50 0.00 3840.50
1979 0.00 0.00 0.00 67.50 260.00 658.00 862.00 721.50 575.00 127.00 2.50 0.00 3273.50
1980 0.00 0.00 0.00 229.50 577.63 a 695.50 913.50 787.50 421.61 b 138.50 11.50 0.00 3775.24
1981 0.00 0.00 31.00 161.50 443.82 a 670.00 881.00 829.00 466.00 193.50 59.46 b 0.00 3735.28
1982 0.00 0.00 0.00 133.50 482.57 a 458.50 856.00 777.58 a 428.00 156.00 10.50 3.50 3306.15
1983 0.00 b 0.00 0.00 69.00 282.50 660.00 a 945.50 916.50 485.17 a 132.00 16.00 0.00 3506.67
1984 0.00 0.50 0.00 115.00 326.00 690.00 843.00 898.00 328.00 268.84 b 9.00 0.00 3478.34
1985 0.00 0.00 7.00 190.86 a 502.00 493.00 782.50 657.00 368.28 a 110.50 2.59 a 0.00 3113.72
1986 0.00 a 0.00 a 32.00 121.00 453.50 689.00 886.50 669.00 396.50 159.50 1.00 0.00 3408.00
1987 0.00 0.00 21.50 272.50 519.00 780.00 922.50 733.00 494.50 75.50 32.00 0.00 3850.50
1988 0.00 0.00 2.00 90.00 632.00 848.50 914.50 822.50 423.10 a 115.50 1.50 0.00 3849.60
1989 0.00 0.00 9.50 79.50 446.00 615.50 949.00 817.00 430.50 187.50 1.00 0.00 3535.50
1990 0.00 0.00 7.00 159.00 335.00 714.50 834.50 841.00 526.00 110.00 39.50 0.00 3566.50
1991 0.00 2.50 3.50 151.00 550.00 781.50 807.00 869.00 418.50 91.00 0.00 0.00 3674.00
1992 0.00 0.00 3.50 72.00 462.50 560.00 598.00 643.50 370.00 152.50 0.00 0.00 2862.00
1993 0.00 0.00 14.00 45.50 345.00 544.50 714.00 749.50 277.00 92.00 0.00 0.00 2781.50
1994 0.00 0.00 0.50 69.00 444.50 702.00 753.00 699.00 528.00 230.50 7.00 0.00 a 3433.50
1995 0.00 0.00 16.00 6.50 354.50 829.00 812.00 845.00 457.50 118.00 0.00 0.00 3438.50
1996 0.00 0.00 0.00 22.00 329.50 692.00 765.00 814.50 459.50 143.00 0.50 0.00 3226.00
1997 0.00 0.00 4.50 59.00 232.00 741.50 803.50 716.50 559.50 211.50 0.00 0.00 3328.00
1998 0.00 0.00 9.50 157.00 561.00 579.50 830.00 837.50 585.50 163.50 0.00 0.00 3723.50
1999 0.00 0.00 5.00 100.34 a 433.48 a 685.34 a 890.00 758.98 a 404.00 72.69 b 43.00 0.00 3392.85
2000 0.00 a 0.00 z 0.00 z 110.00 425.00 561.50 829.50 807.50 413.00 205.00 37.00 0.00 3388.50
2001 0.00 0.00 0.00 a 108.50 452.00 690.50 885.05 a 886.60 a 465.50 121.50 80.50 0.00 3690.15
2002 0.50 0.00 0.00 102.50 239.50 744.00 930.50 782.00 563.00 63.00 0.00 0.00 3425.00
2003 0.00 z 0.00 0.00 z 0.00 z 395.50 660.50 839.50 909.50 473.50 218.00 0.00 0.00 3496.50
2004 0.00 0.00 6.00 98.50 266.00 533.50 746.00 566.00 616.50 181.50 10.00 0.00 3024.00
2005 0.00 0.00 12.50 185.50 344.50 766.00 881.00 753.00 572.50 191.00 19.50 0.00 3725.50
2006 0.00 0.00 5.50 231.50 440.50 692.00 991.00 810.00 447.00 106.50 15.50 0.00 3739.50
2007 0.00 0.00 32.00 148.00 458.00 761.50 899.00 741.00 455.00 188.00 12.50 0.00 3695.00
2008 0.00 0.00 0.00 38.50 253.00 595.50 788.00 784.50 492.50 135.00 60.00 a 0.00 3147.00
2009 0.00 0.00 z 0.00 z 0.00 z 301.50 466.00 g 0.00 z 0.00 z 0.00 z 39.00 21.00 0.00 a 361.50
2010 0.00 0.00 28.50 222.00 422.50 635.00 857.50 866.00 361.00 247.50 29.00 0.00 3669.00
2011 0.00 0.00 0.00 79.50 323.29 c 597.93 a 940.00 589.50 i 471.50 293.50 9.83 a 0.00 a 2715.54
2012 0.00 0.00 138.98 a 131.50 471.41 b 727.50 b 730.00 h 772.93 a 456.00 117.50 4.14 a 0.00 a 2819.97
2013 0.00 0.00 0.00 h 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 0.02 0.32 11.27 114.22 397.70 659.23 843.33 770.17 458.66 185.47 14.78 0.32 3472.57
S.D. 0.11 1.42 21.83 65.95 109.71 96.65 84.79 87.93 78.97 79.39 17.53 1.54 284.15
SKEW 7.78 5.24 3.25 0.73 0.38 -0.17 -0.43 -0.27 -0.36 0.67 1.56 5.57 -0.23
MAX 1.00 10.50 138.98 307.00 760.50 867.32 1013.70 929.00 616.50 465.50 80.50 11.50 4061.97
MIN 0.00 0.00 0.00 2.50 130.00 440.00 598.00 518.00 217.00 15.00 0.00 0.00 2781.50
NO YRS 98 98 95 98 101 101 100 97 99 100 100 99 84