date! ,

Monthly Total Growing Degree Days

(a vali)

Base Temperature = 40 F

File last updated on Oct 29, 2012
*** Note *** Provisional Data *** After Year/Month 201210
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 z 0.00 r 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
1894 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
1895 0.00 5.19 a 5.00 186.50 0.00 z 0.00 z 0.00 z 751.00 606.00 91.50 0.00 z 0.00 z 1645.19
1896 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
1897 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
1898 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
1899 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
1900 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
1901 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
1902 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
1903 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
1904 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
1905 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
1906 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
1907 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
1908 0.00 0.00 3.62 a 184.00 445.50 676.50 847.50 804.45 a 740.00 297.50 28.93 b 0.00 4028.00
1909 0.00 0.00 0.00 6.50 402.48 a 756.50 830.80 a 863.00 504.81 d 181.19 b 73.50 2.07 a 3620.85
1910 0.00 a 0.00 163.86 c 268.89 c 299.67 d 756.00 e 904.00 808.21 c 486.00 319.82 a 0.00 0.00 b 4006.44
1911 0.00 i 0.00 41.91 d 187.00 603.35 d 880.00 845.55 b 722.62 b 496.00 181.87 a 5.00 0.00 3963.30
1912 0.00 0.00 3.00 113.79 a 471.50 656.50 836.00 676.00 531.11 c 272.05 b 22.76 a 0.00 3582.71
1913 0.00 0.00 16.00 194.48 a 367.50 766.50 792.50 825.00 514.00 272.11 d 33.33 c 3.00 3784.43
1914 0.00 0.00 0.00 a 118.45 a 526.48 a 656.50 965.00 764.00 547.00 384.50 32.00 1.50 3995.43
1915 0.00 0.00 0.00 363.00 306.00 554.50 734.50 616.50 519.00 230.00 35.00 0.00 3358.50
1916 0.00 0.00 12.92 a 65.56 c 337.90 a 551.50 1029.50 832.00 469.66 a 169.90 e 14.00 0.00 3482.93
1917 0.00 a 0.00 b 0.00 c 68.50 262.00 523.93 b 839.00 635.00 479.00 44.50 28.50 0.00 2880.43
1918 0.00 0.00 40.09 b 62.00 421.50 585.00 a 784.00 777.58 a 260.36 b 162.50 35.00 0.00 3128.03
1919 0.00 b 0.00 17.57 a 73.50 372.50 838.00 843.00 688.00 516.50 132.00 4.00 0.00 b 3485.07
1920 0.00 a 0.00 29.00 56.90 a 386.50 699.50 741.00 709.50 559.00 427.00 0.00 0.00 3608.40
1921 0.00 0.00 13.00 246.50 505.00 825.00 1027.00 773.50 616.00 194.00 4.50 0.00 4204.50
1922 0.00 0.00 0.00 78.50 637.00 688.50 761.50 778.50 576.00 227.50 42.00 0.00 3789.50
1923 0.00 0.00 2.00 99.50 411.50 799.50 899.50 651.50 544.50 165.00 0.00 0.00 z 3573.00
1924 0.00 0.00 b 0.00 68.50 148.00 545.00 728.00 680.50 408.00 347.50 37.50 0.00 a 2963.00
1925 0.00 a 0.00 20.00 214.00 271.50 719.00 806.00 815.50 554.00 57.50 4.00 0.00 b 3461.50
1926 0.00 0.00 1.50 86.38 a 441.50 543.00 809.00 731.00 378.00 153.00 1.11 c 0.00 a 3144.49
1927 0.00 0.00 a 20.67 a 104.50 274.87 a 573.50 754.33 a 605.50 552.00 212.87 a 0.00 0.00 b 3098.23
1928 0.00 0.00 a 13.00 68.00 434.00 518.50 852.50 777.00 372.41 a 214.93 a 16.50 0.00 c 3266.85
1929 0.00 0.00 8.30 c 127.50 336.87 a 598.93 b 895.38 a 719.89 d 462.69 d 153.50 15.00 0.00 3318.06
1930 0.00 a 10.00 2.07 a 118.50 g 579.18 a 0.00 z 868.52 a 793.50 462.50 258.52 c 135.00 c 0.00 3109.28
1931 0.00 a 2.59 a 6.20 a 212.00 343.50 772.00 935.00 540.00 h 624.44 c 227.50 g 76.15 d 0.00 2971.89
1932 0.00 g 0.00 c 0.00 b 101.25 b 397.83 a 794.00 873.00 799.05 b 472.76 a 130.50 6.50 0.00 b 3574.89
1933 0.00 c 0.00 c 0.00 82.76 a 459.00 914.50 940.00 748.50 626.50 140.50 29.50 0.00 a 3941.26
1934 0.00 h 0.00 a 0.00 76.50 625.50 766.00 898.50 713.00 464.48 a 283.50 15.00 0.00 c 3842.48
1935 0.00 0.00 37.00 138.00 342.00 589.00 1042.00 863.00 471.50 230.50 7.00 0.00 3720.00
1936 0.00 0.00 1.00 40.00 544.00 612.00 1031.50 818.40 a 617.50 138.50 7.50 2.67 b 3813.07
1937 0.00 0.00 a 0.00 50.50 445.50 692.00 967.20 a 947.50 508.00 112.00 8.00 0.00 a 3730.70
1938 0.00 b 0.00 50.24 b 177.50 408.00 634.50 859.50 845.50 464.50 306.00 75.00 b 0.00 3820.74
1939 0.00 a 0.00 20.50 97.50 512.50 685.50 896.50 815.50 538.50 226.50 22.76 a 3.62 a 3819.38
1940 0.00 0.00 0.00 47.07 a 333.50 646.03 a 875.50 742.50 573.50 233.50 13.50 0.00 3465.10
1941 0.00 0.00 a 1.00 246.50 525.00 745.00 853.53 a 732.00 545.17 a 211.50 31.00 8.00 3898.71
1942 0.00 a 0.00 0.00 279.00 357.53 a 649.00 785.50 751.00 435.50 294.50 25.50 0.00 b 3577.53
1943 0.00 0.00 a 22.50 62.59 a 377.00 744.83 a 918.50 278.50 s 386.79 b 226.00 0.00 a 0.00 d 2738.20
1944 9.76 d 0.00 b 0.00 c 77.78 c 613.36 c 724.00 545.50 i 829.25 a 523.97 a 205.00 84.50 0.00 3067.61
1945 0.00 0.00 133.82 a 159.00 287.00 570.50 765.00 808.00 494.50 173.50 17.00 0.00 3408.32
1946 0.00 0.00 97.50 197.50 366.50 657.00 835.00 720.50 504.50 294.50 a 14.50 7.00 3694.50
1947 0.00 0.00 2.00 53.50 297.00 608.00 848.50 1024.00 571.50 525.00 32.00 0.00 a 3961.50
1948 0.00 0.00 6.50 239.00 405.50 663.50 839.50 852.50 a 635.00 212.00 59.00 0.00 3912.50
1949 0.00 0.00 1.50 162.00 469.00 799.00 900.00 840.00 441.00 323.50 28.00 0.00 3964.00
1950 0.00 0.00 0.00 11.00 359.50 668.00 746.00 635.50 500.00 313.50 2.00 0.00 3235.50
1951 0.00 0.00 3.50 97.50 519.00 583.50 774.40 e 639.50 399.31 a 162.50 9.64 b 8.27 a 3197.12
1952 0.00 n 0.00 a 4.00 250.00 390.00 731.11 c 873.00 719.50 517.00 92.50 21.96 b 0.00 3599.08
1953 0.00 0.00 11.00 45.54 b 467.00 733.50 780.00 826.50 489.83 a 359.50 81.72 a 0.00 3794.59
1954 0.00 0.00 3.00 138.00 283.00 738.00 835.50 712.00 427.24 a 182.50 29.50 0.00 3348.74
1955 0.00 0.00 14.00 291.50 590.50 728.00 1052.00 948.50 547.50 264.50 2.00 0.00 4438.50
1956 0.00 0.00 0.00 55.00 446.00 814.50 770.50 810.50 446.50 410.00 96.00 0.00 3849.00
1957 0.00 0.00 0.00 253.00 452.00 721.00 950.50 821.50 a 491.38 a 224.50 17.00 0.00 3930.88
1958 0.00 4.00 0.00 173.00 454.00 584.50 823.50 818.50 577.00 273.50 50.50 0.00 3758.50
1959 0.00 0.00 4.00 119.50 605.53 a 784.00 878.50 942.00 593.00 150.00 0.00 0.00 4076.53
1960 0.00 0.00 5.50 186.00 452.00 661.50 845.00 877.00 574.50 250.50 18.00 4.50 3874.50
1961 0.00 0.00 17.00 71.50 377.00 768.50 879.00 870.50 570.50 298.50 24.00 0.00 3876.50
1962 0.00 0.00 15.00 145.00 600.00 697.00 803.00 817.50 447.50 325.00 4.00 25.50 3879.50
1963 0.00 0.00 42.50 177.50 403.00 790.50 917.00 767.50 580.50 523.50 46.00 0.00 4248.00
1964 0.00 0.00 1.50 181.50 618.00 737.50 960.00 729.50 500.00 218.00 129.50 0.00 4075.50
1965 0.00 0.00 0.00 55.50 598.50 699.50 808.50 769.50 386.50 260.50 32.00 0.00 3610.50
1966 0.00 0.00 22.00 72.00 337.00 798.00 996.00 732.50 532.50 211.50 11.00 0.00 3712.50
1967 0.00 0.00 33.50 136.50 315.50 750.00 811.00 723.50 523.00 223.00 14.50 0.00 3530.50
1968 0.00 0.00 89.00 217.00 398.00 699.50 855.00 836.00 566.00 330.50 12.00 0.00 4003.00
1969 0.00 0.00 0.50 188.50 520.50 503.50 865.00 935.50 561.50 159.50 17.50 0.00 3752.00
1970 0.00 0.00 0.00 154.50 367.00 732.00 901.00 814.00 504.50 250.50 10.50 0.00 3734.00
1971 0.00 0.00 0.00 115.00 298.00 781.50 734.00 704.50 527.50 381.00 23.00 0.00 3564.50
1972 0.00 0.00 3.00 58.50 550.00 629.00 780.00 774.50 454.00 133.00 2.50 0.00 3384.50
1973 0.00 0.00 22.00 103.00 270.00 703.00 839.00 819.50 463.00 338.00 2.00 0.00 3559.50
1974 0.00 0.00 1.50 137.50 280.00 553.50 880.00 715.50 287.00 142.50 33.50 0.00 3031.00
1975 0.00 0.00 0.00 38.50 531.00 697.50 938.00 801.50 372.00 285.50 113.00 0.00 3777.00
1976 0.00 2.00 8.50 158.00 372.50 767.00 908.50 792.00 457.50 139.00 4.00 0.00 a 3609.00
1977 0.00 0.00 38.50 285.50 718.50 649.50 915.50 631.00 481.00 158.50 52.00 0.00 3930.00
1978 0.00 0.00 2.50 49.00 486.38 b 642.00 762.00 803.50 590.89 b 166.00 56.50 0.00 3558.77
1979 0.00 0.00 4.50 82.50 308.50 275.00 p 851.00 733.00 538.50 135.00 6.50 0.00 2659.50
1980 0.00 0.00 0.00 a 179.00 528.00 642.50 0.00 z 774.00 432.50 96.50 15.00 0.00 a 2667.50
1981 0.50 9.50 25.50 128.50 372.52 a 668.00 803.00 826.15 a 408.50 102.50 37.50 0.00 3382.17
1982 0.00 0.00 5.00 90.50 584.50 519.50 895.50 688.00 452.00 224.50 20.00 11.00 3490.50
1983 0.00 0.00 10.50 66.50 263.00 692.50 973.00 911.50 537.50 144.00 10.00 0.00 3608.50
1984 0.00 0.00 0.00 146.00 332.73 a 0.00 z 835.50 860.00 406.00 281.98 e 7.50 0.00 c 2869.71
1985 0.00 0.00 4.77 e 231.00 511.50 d 595.50 786.00 714.00 427.00 123.00 5.56 c 0.00 a 3398.32
1986 0.00 0.00 52.00 214.66 a 537.00 618.50 862.50 673.50 441.50 118.00 9.00 0.00 3526.66
1987 0.00 0.00 45.00 284.00 523.50 777.50 932.50 776.00 530.00 59.00 33.62 a 0.00 3961.12
1988 0.00 a 0.00 3.62 a 120.00 568.00 779.50 952.00 891.50 525.00 91.50 3.50 0.00 3934.62
1989 0.00 0.00 26.50 90.50 0.00 z 626.50 909.00 817.50 500.50 255.50 0.00 0.00 3226.00
1990 0.00 0.00 43.50 253.00 349.00 667.00 799.50 767.00 550.00 149.00 66.50 0.00 3644.50
1991 0.00 2.50 10.50 197.00 579.00 815.50 819.00 846.00 445.50 137.00 1.50 0.00 3853.50
1992 0.00 a 0.00 0.00 75.50 482.50 583.50 670.50 681.00 461.00 191.50 3.00 0.00 3148.50
1993 0.00 0.00 20.00 55.50 404.00 601.00 813.00 826.00 345.50 137.00 0.00 0.00 3202.00
1994 0.00 2.50 12.50 108.00 462.00 755.00 786.50 713.00 591.50 270.50 23.00 0.00 3724.50
1995 0.00 0.00 47.00 23.50 406.00 838.00 882.50 913.50 459.00 211.50 0.00 0.00 3781.00
1996 0.00 0.00 5.00 51.50 342.50 693.00 717.65 a 816.00 499.00 172.00 3.50 0.00 3300.15
1997 0.00 4.00 3.50 90.50 257.50 750.00 811.50 712.00 551.00 270.00 4.50 0.00 3454.50
1998 0.00 1.50 42.00 219.00 640.00 669.50 884.00 899.00 699.50 267.50 38.00 27.00 4387.00
1999 0.00 0.00 a 28.00 186.50 527.00 738.50 991.00 795.50 525.50 176.50 69.50 0.00 4038.00
2000 0.00 20.00 91.50 118.00 507.50 637.50 823.00 823.00 520.50 313.50 42.00 0.00 3896.50
2001 0.00 0.00 0.00 170.00 513.57 a 718.45 a 868.50 910.00 531.50 193.00 129.50 16.50 4051.02
2002 0.00 0.00 0.00 135.50 306.00 759.50 999.50 825.50 603.50 110.50 6.00 0.00 3746.00
2003 0.00 0.00 44.50 152.50 376.50 661.00 844.00 902.50 553.50 211.50 6.00 1.50 3753.50
2004 0.00 0.50 10.50 135.00 363.00 641.50 815.50 645.00 702.50 227.00 22.00 0.00 3562.50
2005 0.00 0.00 30.50 206.00 391.50 869.50 954.50 862.00 680.00 303.50 35.00 0.00 4332.50
2006 1.00 0.00 11.50 256.00 512.00 756.50 997.50 853.00 460.00 f 127.50 0.00 z 0.00 3515.00
2007 0.00 0.00 73.00 157.00 521.00 772.00 0.00 z 842.50 599.50 343.00 11.50 0.00 3319.50
2008 0.00 0.00 0.00 119.00 323.50 682.00 864.50 797.00 593.00 182.00 64.00 0.00 3625.00
2009 0.00 0.00 9.50 105.00 417.50 659.50 706.00 735.50 631.50 85.00 41.00 0.00 3390.50
2010 0.00 0.00 54.00 244.50 531.00 680.50 938.00 923.00 443.00 282.00 43.00 0.00 4139.00
2011 0.00 5.00 6.00 63.00 404.00 692.50 1015.50 431.50 p 425.00 241.50 13.00 0.00 2865.50
2012 0.00 0.00 221.00 84.00 496.50 712.50 933.00 709.50 397.50 96.00 j 0.00 z 0.00 z 3554.00
Period of Record Statistics
MEAN 0.11 0.65 19.59 136.62 433.20 692.14 863.47 785.45 508.86 219.99 27.25 1.19 3677.35
S.D. 0.97 2.50 34.00 74.63 110.31 87.45 81.83 82.93 83.11 92.72 29.88 4.28 325.38
SKEW 9.77 5.53 3.38 0.56 0.16 -0.04 0.23 0.10 -0.07 0.73 1.76 4.64 -0.14
MAX 9.76 20.00 221.00 363.00 718.50 914.50 1052.00 1024.00 740.00 525.00 135.00 27.00 4438.50
MIN 0.00 0.00 0.00 6.50 148.00 503.50 670.50 605.50 260.36 44.50 0.00 0.00 2880.43
NO YRS 102 106 106 105 104 102 102 103 105 104 103 103 88