date! ,

Monthly Total Growing Degree Days

(a vali)

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
1893 0.00 j 0.00 0.52 a 2.22 c 333.50 879.64 b 889.59 c 746.07 a 465.00 143.00 30.52 a 0.00 3490.05
1894 0.00 0.00 3.50 160.86 a 421.60 a 849.44 c 965.13 a 836.48 a 568.27 d 120.38 a 0.00 0.00 d 3925.68
1895 0.00 0.50 5.00 226.50 447.50 372.00 l 779.50 699.50 495.00 112.50 13.00 0.00 2779.00
1896 0.00 0.00 0.00 102.22 c 271.00 k 768.75 b 847.50 711.97 a 368.79 a 133.50 0.00 a 0.00 2932.73
1897 0.00 a 0.00 10.50 107.50 369.00 528.00 907.50 655.00 651.00 251.00 2.50 0.00 3482.00
1898 0.00 0.00 a 3.50 87.00 360.00 693.00 818.50 691.00 477.00 65.50 5.00 0.00 b 3200.50
1899 0.00 a 0.00 0.00 136.00 337.00 661.50 868.50 756.00 380.00 170.50 11.11 c 0.00 a 3320.61
1900 0.00 0.00 0.00 c 254.50 537.50 738.50 768.50 966.50 483.50 402.00 3.00 0.00 4154.00
1901 0.00 0.00 0.00 164.00 500.00 675.00 941.00 810.50 399.44 c 211.50 4.00 0.00 3705.44
1902 0.00 0.00 17.50 53.00 457.00 582.50 861.50 716.00 330.00 a 137.00 20.00 0.00 3174.50
1903 0.00 0.00 0.00 81.50 454.50 618.00 759.50 628.50 330.52 a 141.05 a 37.76 a 0.00 a 3051.33
1904 0.00 0.00 a 0.00 a 32.50 372.00 612.00 735.00 0.00 z 0.00 z 177.22 a 53.00 0.00 1981.72
1905 0.00 0.00 17.50 72.50 277.50 607.50 793.50 814.00 539.50 180.66 b 5.50 0.00 3308.16
1906 0.00 0.00 0.00 176.50 349.00 657.00 855.00 802.50 666.50 220.50 20.56 c 0.00 3747.56
1907 0.00 0.00 3.50 2.68 b 163.50 689.50 849.00 742.50 408.00 82.50 f 7.50 0.00 2866.18
1908 0.00 0.00 0.00 196.00 372.00 647.50 898.00 740.90 a 654.50 189.50 7.24 a 0.00 3705.64
1909 0.00 0.00 0.00 9.44 c 401.00 736.00 885.50 898.50 509.00 184.00 38.00 0.50 3661.94
1910 0.00 0.00 117.00 240.50 335.00 843.00 922.00 742.00 464.00 343.77 c 0.00 0.00 4007.27
1911 0.00 0.00 29.00 179.50 497.15 d 844.50 818.50 681.50 413.50 160.00 0.00 0.00 3623.65
1912 0.00 e 0.00 1.00 160.50 455.00 656.00 863.50 671.00 470.00 181.00 8.00 0.00 3466.00
1913 0.00 0.00 0.50 199.00 306.00 797.50 783.50 847.00 494.00 173.00 19.00 0.00 3619.50
1914 0.00 0.00 2.50 85.00 481.50 665.00 985.00 750.50 530.69 a 354.50 25.50 0.00 3880.19
1915 0.00 a 0.00 0.00 338.00 308.50 544.00 728.00 749.17 a 493.00 202.00 13.00 0.00 3375.67
1916 0.00 0.00 6.50 81.00 338.50 587.00 1067.50 805.50 419.50 93.55 c 17.00 0.00 3416.05
1917 0.00 0.00 0.00 34.50 350.82 a 594.50 940.16 b 461.50 l 485.50 47.00 31.50 0.00 2483.97
1918 0.00 0.00 55.00 92.50 380.00 688.50 809.00 820.00 302.00 207.00 26.00 0.00 3380.00
1919 0.00 0.00 5.00 90.50 462.00 801.50 936.00 748.00 546.00 92.50 0.00 0.00 3681.50
1920 0.00 0.00 29.50 32.00 426.00 686.50 841.00 802.00 620.00 368.00 0.50 0.00 a 3805.50
1921 0.00 0.00 16.53 a 0.00 z 0.00 z 0.00 z 1022.48 a 798.00 551.50 178.50 1.00 f 0.00 c 2567.02
1922 0.00 a 0.00 a 0.00 79.66 a 605.69 e 769.66 a 805.50 900.03 a 576.50 274.00 28.00 0.00 4039.04
1923 0.00 a 0.00 a 0.00 99.50 461.00 851.00 973.83 b 690.00 550.50 210.80 a 16.50 0.00 3853.13
1924 0.00 a 0.00 0.00 80.50 192.89 d 605.00 806.50 755.00 404.00 335.00 12.00 0.00 p 3190.89
1925 0.00 h 1.00 16.50 210.00 356.00 654.00 827.50 868.50 538.00 21.50 3.21 b 0.00 a 3496.21
1926 0.00 0.00 16.50 116.50 544.50 542.50 878.50 752.50 355.50 102.50 0.00 c 0.00 3309.00
1927 0.00 0.00 4.00 92.00 240.50 636.50 789.50 676.50 545.00 222.00 0.00 0.00 d 3206.00
1928 0.00 0.00 c 32.50 54.00 523.50 584.50 854.00 794.50 370.00 186.50 16.11 c 0.00 3415.61
1929 0.00 0.00 10.33 a 111.50 336.00 693.00 971.00 857.00 411.11 c 183.50 1.50 0.00 3574.94
1930 0.00 a 0.00 0.00 122.50 391.00 718.50 914.00 912.50 466.00 199.50 11.50 0.00 3735.50
1931 0.00 0.00 0.00 178.50 392.50 836.00 936.00 741.00 657.00 299.50 42.00 0.00 4082.50
1932 0.00 2.50 0.00 121.55 a 450.50 830.00 938.50 837.00 455.50 110.00 2.50 0.00 3748.05
1933 0.00 0.00 3.00 111.00 460.00 943.50 1009.00 821.50 604.82 b 131.50 6.50 0.00 4090.82
1934 0.00 0.00 0.00 79.00 648.50 760.50 923.00 776.50 371.50 316.50 20.50 0.00 3896.00
1935 0.00 0.00 11.00 84.31 a 325.50 a 578.50 1039.00 848.50 475.00 191.00 0.00 0.00 3552.81
1936 0.00 0.00 b 0.00 37.24 a 555.50 646.00 1094.50 857.00 583.50 138.00 4.00 0.00 3915.74
1937 0.00 0.00 0.00 44.50 474.50 682.00 950.50 995.50 514.50 138.00 6.50 0.00 3806.00
1938 0.00 0.00 63.00 136.50 301.50 649.50 853.50 913.50 499.50 280.00 24.50 0.00 3721.50
1939 0.00 0.00 14.50 75.00 519.00 638.00 897.00 814.50 516.00 151.00 1.00 0.00 3626.00
1940 0.00 0.00 0.00 72.50 380.00 649.00 919.50 771.50 622.50 281.50 3.50 0.00 3700.00
1941 0.00 0.00 1.00 207.00 569.00 738.50 951.00 826.00 508.00 202.00 4.50 6.50 4013.50
1942 0.00 a 0.00 4.00 248.00 320.00 600.00 b 803.50 760.50 405.00 261.00 0.00 0.00 3402.00
1943 0.00 0.00 8.50 91.00 293.50 680.00 947.50 838.00 381.50 215.50 0.00 0.00 3455.50
1944 0.00 0.00 0.00 54.50 479.50 696.00 819.00 780.50 449.00 163.50 32.00 0.00 3474.00
1945 0.00 a 0.00 59.00 57.00 224.50 521.50 808.00 791.00 399.00 139.00 0.00 0.00 2999.00
1946 0.00 0.00 a 61.50 181.50 345.50 675.00 891.00 750.50 450.00 142.00 3.50 0.00 3500.50
1947 0.00 0.00 0.50 47.50 234.00 570.50 913.00 982.50 486.50 395.50 28.50 0.00 3658.50
1948 0.00 0.00 0.00 156.00 414.00 665.50 895.50 843.00 657.00 206.00 22.00 0.00 3859.00
1949 0.00 0.00 z 0.00 167.00 432.00 749.50 910.50 927.50 424.50 239.00 18.50 0.00 3868.50
1950 0.00 0.00 0.00 c 12.00 297.60 a 672.50 817.00 713.00 546.00 200.00 18.50 0.00 3276.60
1951 0.00 0.00 0.00 61.50 521.00 587.00 824.50 706.50 358.00 189.50 0.00 0.00 3248.00
1952 0.00 0.00 a 0.00 231.50 444.00 743.50 853.50 774.00 521.50 119.00 16.61 b 0.00 3703.61
1953 0.00 0.00 0.00 55.50 413.00 714.50 829.50 882.00 476.50 358.50 53.00 0.00 3782.50
1954 0.00 0.00 0.00 87.50 284.00 705.00 897.00 807.00 439.00 147.00 15.50 0.00 3382.00
1955 0.00 0.00 0.00 234.00 539.50 704.50 969.27 a 925.50 462.00 233.57 b 0.00 0.00 4068.34
1956 0.00 0.00 a 0.00 12.50 336.50 799.50 759.00 770.00 376.55 a 368.00 50.00 0.00 3472.05
1957 0.00 0.00 0.00 191.50 437.62 a 639.50 1008.00 811.00 431.00 199.43 a 6.00 0.00 3724.05
1958 0.00 8.50 3.00 136.00 502.00 545.50 792.00 831.50 520.50 240.50 16.55 a 0.00 3596.05
1959 0.00 a 0.00 6.00 109.00 489.50 774.00 895.50 923.50 507.50 89.50 0.00 0.00 3794.50
1960 0.00 0.00 0.00 115.00 458.50 652.00 925.00 901.50 551.50 248.00 0.50 0.00 3852.00
1961 0.00 2.50 22.00 35.50 383.00 808.00 876.00 975.50 487.50 224.50 7.00 0.00 3821.50
1962 0.00 0.00 0.00 129.00 481.50 714.00 803.50 850.50 442.50 323.50 13.50 11.50 3769.50
1963 0.00 0.00 58.50 170.00 388.50 824.00 975.00 834.50 615.00 502.00 26.00 0.00 4393.50
1964 0.00 0.00 3.00 159.00 577.00 719.00 980.50 723.50 440.50 194.50 69.50 0.00 3866.50
1965 0.00 0.00 0.00 59.50 461.50 693.00 831.00 804.00 272.50 251.00 24.50 0.00 a 3397.00
1966 0.00 0.00 14.50 44.50 336.00 751.50 1001.50 754.50 526.50 191.50 0.00 0.00 3620.50
1967 0.00 0.00 36.50 94.50 301.00 668.50 856.50 794.50 570.50 178.00 10.50 0.00 3510.50
1968 0.00 0.00 82.50 159.00 359.00 700.50 848.50 824.00 528.50 246.00 6.00 0.00 3754.00
1969 0.00 0.00 0.00 169.00 458.80 a 516.50 855.00 956.50 562.00 117.50 42.50 0.00 3677.80
1970 0.00 0.00 0.00 104.00 362.50 803.50 961.00 870.00 560.50 226.00 1.50 0.00 3889.00
1971 0.00 0.00 1.00 174.00 380.00 816.50 745.00 782.50 502.00 244.00 0.00 0.00 3645.00
1972 0.00 0.00 0.50 75.00 571.00 705.00 794.00 807.50 423.00 147.50 3.50 0.00 3527.00
1973 0.00 0.00 32.50 111.50 400.00 687.50 821.50 902.50 451.00 316.50 4.50 0.00 3727.50
1974 0.00 0.00 0.00 134.50 323.50 701.50 998.00 732.50 362.00 223.00 11.00 0.00 3486.00
1975 0.00 0.00 0.50 28.00 521.50 696.00 966.50 788.50 400.00 261.00 67.50 0.00 3729.50
1976 0.00 2.00 7.50 215.00 454.00 790.00 907.00 906.50 570.00 163.50 7.00 0.00 4022.50
1977 0.00 0.00 40.50 303.50 773.50 726.50 932.50 623.00 458.00 141.00 32.00 0.00 4030.50
1978 0.00 0.00 17.00 100.00 562.50 696.50 868.50 865.00 632.00 207.00 51.00 0.00 3999.50
1979 0.00 0.00 0.00 72.00 260.00 656.50 857.50 753.50 584.50 125.50 2.00 0.00 3311.50
1980 0.00 0.00 0.00 239.00 578.00 684.50 881.50 786.50 453.00 129.50 12.50 0.00 3764.50
1981 0.00 2.00 25.00 146.50 424.50 652.00 873.00 819.00 461.50 163.00 57.00 0.00 3623.50
1982 0.00 0.00 0.00 125.00 493.00 502.00 867.00 779.00 430.00 147.50 0.00 4.50 3348.00
1983 0.00 a 0.00 1.00 90.00 344.50 722.50 978.50 985.50 522.50 122.50 15.00 0.00 3782.00
1984 0.00 0.00 0.50 128.00 352.50 682.50 860.00 911.50 341.50 247.48 a 8.00 0.00 3531.98
1985 0.00 0.00 3.00 210.00 567.50 546.50 852.00 693.00 422.00 134.00 4.50 0.00 3432.50
1986 0.00 0.00 0.00 z 171.50 509.50 762.50 954.50 731.50 464.00 204.50 1.50 0.00 3799.50
1987 0.00 0.00 35.00 350.50 595.00 821.50 974.00 780.50 556.00 104.50 35.50 0.00 a 4252.50
1988 0.00 0.00 0.00 151.00 700.00 913.00 1007.50 901.00 518.50 137.00 0.50 0.00 a 4328.50
1989 0.00 0.00 5.50 118.00 475.50 674.00 1004.00 869.50 512.50 217.50 0.00 0.00 3876.50
1990 0.00 0.00 19.00 178.00 411.00 769.00 860.00 869.50 592.00 151.00 44.00 0.00 3893.50
1991 0.00 0.00 15.00 203.50 631.50 847.50 883.50 944.00 493.00 130.50 0.00 0.00 4148.50
1992 0.00 0.00 7.00 123.50 552.50 635.00 685.50 711.00 493.00 202.00 0.00 0.00 3409.50
1993 0.00 0.00 18.50 94.50 423.50 628.50 806.50 818.00 350.00 156.00 0.00 0.00 3295.50
1994 0.00 0.00 0.00 119.50 529.50 766.50 817.50 767.50 605.50 272.00 15.50 0.00 3893.50
1995 0.00 0.00 21.50 30.00 429.00 863.50 871.00 914.00 488.50 158.50 0.00 0.00 3776.00
1996 0.00 0.00 0.00 39.50 382.00 785.50 831.00 885.00 517.00 196.50 0.00 0.00 3636.50
1997 0.00 0.00 0.00 104.50 328.00 814.00 888.50 790.00 603.50 282.50 0.00 0.00 3811.00
1998 0.00 3.50 26.50 201.00 629.50 660.50 888.50 919.00 682.00 223.50 4.50 0.00 4238.50
1999 0.00 a 0.00 18.08 a 146.00 472.00 709.50 913.50 793.50 414.50 117.50 38.50 0.00 a 3623.08
2000 0.00 2.00 36.68 a 144.50 452.08 a 573.21 b 870.50 834.50 448.00 220.50 29.48 a 0.00 3611.46
2001 0.00 0.00 0.00 a 145.00 470.00 720.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1335.50
2002 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
2003 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
2004 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
2005 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
2006 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
2007 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
2008 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
2009 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
2010 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
2011 0.00 0.00 0.00 34.00 k 393.38 b 669.64 b 974.00 840.00 467.07 a 287.50 9.00 0.00 a 3640.59
2012 0.00 0.00 171.00 163.93 b 504.50 758.00 1032.50 790.00 476.50 128.00 7.76 a 0.00 4032.19
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 0.22 12.24 124.04 428.35 698.99 886.21 809.64 487.00 199.88 14.20 0.21 3680.77
S.D. 0.00 0.98 24.61 70.78 108.57 92.36 78.72 81.58 86.68 80.78 16.44 1.33 283.84
SKEW 0.00 6.31 3.69 0.67 0.29 0.17 0.15 0.15 0.06 0.88 1.39 7.03 0.07
MAX 0.00 8.50 171.00 350.50 773.50 943.50 1094.50 995.50 682.00 502.00 69.50 11.50 4393.50
MIN 0.00 0.00 0.00 2.22 163.50 502.00 685.50 623.00 272.50 21.50 0.00 0.00 2999.00
NO YRS 110 111 111 109 109 109 110 108 109 109 109 109 98