date! ,

Monthly Total Growing Degree Days

(a vali)

Base Temperature = 50 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
1893 0.00 0.00 0.00 b 20.50 190.00 659.50 726.00 576.00 414.00 169.50 8.28 a 0.00 2763.78
1894 0.00 0.00 0.00 z 120.50 309.00 587.00 720.00 783.00 380.00 69.50 0.00 a 1.00 2970.00
1895 0.00 0.00 18.00 148.50 332.73 a 527.00 695.50 643.00 503.00 41.50 22.50 0.00 2931.73
1896 0.00 0.00 0.00 237.00 457.50 564.00 672.00 732.00 245.69 a 70.50 4.50 0.00 2983.19
1897 3.00 0.00 4.65 a 77.59 a 0.00 z 199.00 t 776.03 a 484.50 537.00 199.00 4.00 0.00 2085.77
1898 0.00 0.00 0.00 34.50 251.50 578.50 680.00 609.00 429.00 86.50 7.24 a 0.00 2676.24
1899 0.00 0.00 0.00 121.00 286.23 a 579.50 671.00 720.00 354.00 200.50 7.00 0.00 2939.23
1900 0.00 0.00 0.00 a 126.50 399.00 531.50 671.00 828.00 381.50 236.50 1.00 0.00 3175.00
1901 0.00 d 0.00 a 0.00 d 109.50 342.55 a 615.56 c 970.62 b 695.00 374.00 110.10 b 0.00 d 0.00 q 3217.33
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 a 0.00 11.50 53.04 b 353.50 382.50 650.00 493.00 244.00 68.50 12.00 0.00 a 2268.04
1904 0.00 0.00 0.00 19.00 256.00 457.50 559.00 474.50 333.00 98.50 0.00 z 0.00 z 2197.50
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 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
1909 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
1910 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
1911 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
1912 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
1913 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
1914 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
1915 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
1916 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
1917 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
1918 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
1919 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
1920 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
1921 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
1922 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
1923 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
1924 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
1925 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
1926 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
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 250.00 514.00 749.00 724.50 488.79 a 78.50 15.50 0.00 2820.29
1949 0.00 0.00 0.00 94.00 356.50 660.00 790.00 712.50 249.00 209.00 8.50 0.00 3079.50
1950 0.00 0.00 0.00 19.00 275.50 503.50 588.00 521.50 346.50 228.50 4.50 0.00 2487.00
1951 0.00 0.00 0.00 57.50 374.50 416.50 638.00 550.00 264.50 143.50 2.50 0.00 2447.00
1952 0.00 0.00 5.00 143.00 248.50 642.50 718.00 589.00 376.00 34.50 13.50 0.00 2770.00
1953 0.00 0.00 6.50 17.00 304.00 628.00 705.50 688.00 416.50 267.63 a 33.00 0.00 3066.13
1954 0.00 0.00 0.00 155.50 224.50 661.00 778.00 635.00 453.00 128.50 18.50 0.00 3054.00
1955 0.00 0.00 1.00 169.50 411.00 494.00 889.00 817.00 463.00 154.00 0.00 0.00 3398.50
1956 0.00 0.00 0.00 38.00 365.00 708.50 627.50 674.50 344.00 254.00 23.00 0.00 3034.50
1957 0.00 0.00 0.00 165.00 277.50 550.50 839.50 681.00 320.50 94.00 1.00 0.00 2929.00
1958 0.00 0.00 0.00 81.00 359.00 439.00 608.50 682.00 412.50 191.50 14.00 0.00 2787.50
1959 0.00 0.00 0.00 75.50 403.50 612.00 671.50 799.50 398.50 52.00 0.00 0.00 3012.50
1960 0.00 0.00 0.00 140.17 a 308.00 517.00 687.00 699.50 437.00 138.00 8.50 0.00 2935.17
1961 0.00 0.00 0.00 25.00 252.50 593.00 651.50 683.00 370.50 174.00 9.00 0.00 2758.50
1962 0.00 0.00 1.00 101.00 459.50 532.00 625.50 637.00 273.50 194.50 0.00 3.50 2827.50
1963 0.00 0.00 38.50 92.00 285.50 669.00 697.00 599.50 412.00 358.50 4.00 0.00 3156.00
1964 0.00 0.00 0.00 80.00 447.00 572.50 805.50 589.00 348.00 78.50 43.50 0.00 2964.00
1965 0.00 0.00 0.00 44.00 414.00 539.00 690.50 618.00 269.50 131.00 17.50 0.00 2723.50
1966 0.00 0.00 17.00 24.00 214.00 564.00 767.50 579.00 347.00 112.00 6.50 0.00 2631.00
1967 0.00 0.00 29.50 73.00 216.00 563.00 604.00 530.00 317.50 132.50 0.00 0.00 2465.50
1968 0.00 0.00 43.50 103.50 182.50 586.50 665.50 647.00 348.50 168.00 8.50 2.00 2755.50
1969 0.00 0.00 0.00 58.00 332.50 396.50 722.00 689.50 385.50 115.50 1.00 0.00 2700.50
1970 0.00 0.00 0.00 127.50 378.50 596.00 715.00 658.00 365.00 113.50 0.00 0.00 2953.50
1971 0.00 0.00 4.50 86.50 216.00 719.00 597.00 628.00 452.50 234.50 13.00 0.00 2951.00
1972 0.00 0.00 0.00 32.50 376.00 532.50 649.50 676.00 384.00 90.00 0.00 0.00 2740.50
1973 0.00 0.00 6.00 57.50 213.00 636.00 729.50 713.00 371.00 245.00 4.00 0.00 2975.00
1974 0.00 0.00 0.50 109.00 235.00 495.00 822.00 583.50 275.50 127.50 5.00 0.00 2653.00
1975 0.00 0.00 0.00 33.00 395.00 584.00 753.50 729.50 276.50 193.50 41.00 0.00 3006.00
1976 0.00 0.00 5.50 108.00 253.50 597.50 778.00 640.50 372.00 114.00 0.00 0.00 2869.00
1977 0.00 0.00 19.50 249.50 557.00 626.00 801.00 570.00 422.50 38.50 17.50 0.00 3301.50
1978 0.00 0.00 16.00 31.50 343.50 588.50 670.50 666.00 523.00 83.00 23.00 0.00 2945.00
1979 0.00 0.00 0.00 36.50 278.00 545.00 663.00 625.50 415.00 108.00 5.50 0.00 2676.50
1980 0.00 0.00 0.00 124.00 357.00 587.00 774.50 684.50 441.00 73.50 8.00 0.00 3049.50
1981 0.00 1.50 24.00 133.00 249.00 580.00 712.00 596.00 360.50 83.00 18.00 0.00 2757.00
1982 0.00 0.00 2.00 46.50 389.50 426.00 728.50 615.50 345.00 124.50 5.00 6.00 2688.50
1983 0.00 0.00 13.00 44.50 175.00 572.50 805.00 825.00 421.50 114.50 18.00 0.00 2989.00
1984 0.00 0.00 0.00 32.50 249.50 601.50 641.50 729.00 395.50 164.50 0.50 0.00 2814.50
1985 0.00 0.00 4.00 230.50 436.50 490.50 685.50 556.00 400.50 70.00 2.50 0.00 2876.00
1986 0.00 0.00 57.50 120.00 347.50 619.00 751.50 532.00 423.00 99.00 0.00 0.00 2949.50
1987 0.00 0.00 19.00 185.00 463.50 681.50 796.50 584.50 361.50 55.00 21.50 0.00 3168.00
1988 0.00 0.00 0.00 47.00 449.50 690.00 754.50 757.50 406.50 49.00 0.00 0.00 3154.00
1989 0.00 0.00 25.00 87.00 296.50 517.50 765.50 665.00 308.00 167.50 0.00 0.00 2832.00
1990 0.00 0.00 23.00 127.00 207.50 566.50 646.00 628.50 471.00 98.00 34.00 0.00 2801.50
1991 0.00 0.00 14.50 119.50 449.50 709.00 702.00 626.50 331.00 105.50 0.00 0.00 3057.50
1992 0.00 0.00 2.50 57.50 349.00 519.00 517.50 459.00 303.00 135.50 0.00 0.00 2343.00
1993 0.00 0.00 0.00 34.00 264.50 478.00 647.50 619.00 196.00 106.50 0.00 0.00 2345.50
1994 0.00 0.00 5.50 107.50 336.50 598.00 574.00 500.50 411.50 122.50 3.50 0.00 2659.50
1995 0.00 0.00 12.50 9.50 225.00 605.50 689.00 768.50 320.50 107.50 0.00 0.00 2738.00
1996 0.00 0.00 0.00 51.00 189.00 561.00 605.50 571.50 320.50 136.00 0.00 0.00 2434.50
1997 0.00 0.00 4.50 35.00 146.50 583.50 645.50 551.50 359.00 182.50 0.00 0.00 2508.00
1998 0.00 0.00 45.50 84.00 487.50 510.00 686.50 662.00 507.00 93.50 9.00 4.00 3089.00
1999 0.00 0.00 9.00 44.50 332.00 540.50 777.50 574.00 305.00 118.83 a 18.00 0.00 2719.33
2000 0.00 2.50 30.00 82.50 334.50 475.00 622.00 608.00 393.50 157.00 16.50 0.00 2721.50
2001 0.00 0.00 0.00 172.50 370.00 575.50 792.50 742.50 347.00 116.00 87.00 4.00 3207.00
2002 0.00 0.00 0.00 150.50 278.50 675.00 848.50 646.50 474.50 78.50 0.00 0.00 3152.00
2003 0.00 0.00 i 15.50 b 132.50 246.50 527.00 697.00 733.00 374.50 157.50 0.00 0.00 2883.50
2004 0.00 0.00 47.50 128.50 343.00 499.50 616.50 496.00 494.50 122.50 18.00 0.00 2766.00
2005 0.00 0.00 20.50 178.50 266.50 680.00 754.50 624.00 509.00 155.00 i 11.50 0.00 3044.50
2006 0.00 0.00 3.00 151.50 349.50 564.50 791.00 677.50 299.50 100.00 h 17.00 0.00 2853.50
2007 0.00 0.00 43.50 111.50 417.00 583.00 694.50 679.00 448.00 187.00 5.00 0.00 3168.50
2008 0.00 0.00 0.00 56.00 191.00 521.50 696.50 589.00 379.50 88.00 45.00 0.00 b 2566.50
2009 0.00 0.00 4.00 60.00 259.00 480.50 509.00 579.00 404.50 20.00 12.50 0.00 2328.50
2010 0.00 0.00 22.00 140.00 300.59 c 568.00 735.00 741.50 360.50 130.41 b 15.52 a 0.00 3013.52
2011 0.00 0.00 0.00 a 63.10 a 296.64 b 557.50 803.33 b 625.00 267.00 156.00 3.46 d 0.00 c 2772.03
2012 0.00 0.00 170.00 88.50 415.00 628.00 870.50 621.50 332.00 87.12 b 12.41 a 2.50 3227.53
2013 0.00 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 0.00 z 0.00 z 0.00
Period of Record Statistics
MEAN 0.04 0.05 11.28 92.40 318.04 567.14 708.23 641.35 375.86 130.31 10.53 0.31 2848.35
S.D. 0.34 0.33 23.12 55.19 86.78 73.29 84.40 84.56 72.49 61.83 13.97 1.07 250.03
SKEW 8.54 6.41 4.67 0.68 0.29 -0.18 0.25 0.07 0.01 0.95 2.78 3.67 -0.29
MAX 3.00 2.50 170.00 249.50 557.00 719.00 970.62 828.00 537.00 358.50 87.00 6.00 3398.50
MIN 0.00 0.00 0.00 9.50 146.50 382.50 509.00 459.00 196.00 20.00 0.00 0.00 2268.04
NO YRS 76 75 75 75 75 75 76 76 76 74 75 74 68