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 z 0.00 z 0.00 15.50 0.00 z 0.00 z 653.00 0.00 z 351.00 106.00 4.00 0.00 1129.50
1894 0.00 0.00 15.50 111.00 263.50 581.50 750.00 684.00 397.50 73.00 0.00 0.00 2876.00
1895 0.00 0.00 11.00 113.00 303.50 497.00 595.00 630.50 474.50 44.00 19.50 0.00 2688.00
1896 0.00 0.00 0.00 183.50 399.00 489.00 602.00 591.50 195.50 53.50 0.00 0.00 2514.00
1897 0.00 0.00 0.00 48.50 211.00 455.50 685.00 465.00 521.50 201.00 5.00 0.00 2592.50
1898 0.00 0.00 0.00 33.50 248.00 529.50 659.00 603.50 406.00 73.00 6.00 0.00 2558.50
1899 0.00 0.00 0.00 110.00 250.00 520.50 623.00 653.50 298.00 157.00 1.00 0.00 2613.00
1900 0.00 0.00 0.00 123.00 347.00 511.00 653.50 839.00 349.50 211.00 1.00 0.00 3035.00
1901 0.00 d 0.00 e 0.00 105.00 278.00 576.00 884.50 657.50 304.50 133.00 1.00 0.00 a 2939.50
1902 0.00 0.00 h 2.58 a 40.18 b 331.70 a 345.00 a 438.00 j 99.50 z 206.50 70.00 0.00 z 0.00 z 995.96
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 d 0.00 a 0.00 15.00 a 316.50 464.00 511.50 d 496.00 321.00 172.29 e 0.00 x 0.00 2296.29
1905 0.00 0.00 19.00 30.00 181.00 489.00 548.70 a 642.50 399.50 126.00 0.00 z 0.00 z 2435.70
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 0.00 0.00 35.00 262.00 462.50 713.50 780.00 405.50 86.00 2.00 0.00 2746.50
1938 0.00 0.00 43.50 124.50 281.50 535.50 769.00 721.00 393.50 232.00 37.00 0.00 3137.50
1939 0.00 0.00 34.00 95.00 435.00 561.50 738.50 594.00 500.50 130.00 1.50 0.00 3090.00
1940 0.00 0.00 0.50 26.00 221.00 553.00 740.50 566.50 416.00 141.50 0.00 z 0.00 a 2665.00
1941 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 549.00 709.00 659.50 430.50 108.50 14.00 0.00 a 2470.50
1942 0.00 0.00 4.50 172.00 226.00 472.00 625.00 563.50 299.50 126.00 11.50 0.00 2500.00
1943 0.00 0.00 19.50 40.50 231.00 621.50 715.00 632.00 210.50 76.50 0.00 s 0.00 z 2546.50
1944 0.00 z 0.00 z 0.00 z 18.00 403.00 569.50 599.50 619.00 357.00 90.00 28.00 0.00 2684.00
1945 0.00 0.00 59.00 49.50 129.50 350.50 579.50 598.00 306.00 83.00 1.50 0.00 2156.50
1946 0.00 0.00 23.50 129.00 179.50 491.00 645.00 480.00 306.50 149.50 0.00 0.00 2404.00
1947 0.00 0.00 0.00 37.00 119.00 414.50 655.00 898.00 466.00 315.50 3.62 a 0.00 2908.62
1948 0.00 z 0.00 z 0.00 z 153.10 a 244.50 511.50 758.00 736.00 521.50 66.00 13.00 0.00 3003.60
1949 0.00 0.00 0.00 90.00 353.00 628.00 783.00 699.00 255.50 149.00 n 18.50 0.00 2827.00
1950 0.00 0.00 0.00 20.00 244.00 466.50 560.00 480.50 341.00 216.48 a 9.00 0.00 2337.48
1951 0.00 0.00 0.00 48.00 342.00 390.00 600.50 487.73 a 211.07 b 104.00 0.00 0.00 b 2183.30
1952 0.00 0.00 2.00 138.50 224.50 573.50 669.50 523.50 325.00 15.50 k 8.50 0.00 2465.00
1953 0.00 a 0.00 6.50 18.75 b 269.50 562.78 c 632.00 628.94 e 332.50 138.00 i 23.50 0.00 a 2474.47
1954 0.00 b 0.00 a 0.00 127.00 176.00 618.50 741.00 440.50 h 407.68 b 119.83 e 4.00 0.00 2194.01
1955 0.00 0.00 z 0.00 z 76.50 s 383.50 468.62 a 858.50 795.50 431.50 123.50 0.00 0.00 3061.12
1956 0.00 0.00 0.00 28.00 307.50 673.00 608.00 637.50 288.00 211.50 24.00 0.00 2777.50
1957 0.00 0.00 0.00 155.00 240.00 521.00 758.50 593.50 261.50 64.50 0.00 0.00 2594.00
1958 0.00 0.00 0.00 74.00 322.50 396.50 582.50 642.50 340.50 162.50 10.50 0.00 2531.50
1959 0.00 0.00 0.00 53.50 370.50 567.50 631.50 720.50 348.50 28.00 0.00 0.00 2720.00
1960 0.00 0.00 0.00 111.00 286.50 440.50 634.00 628.00 385.50 115.00 2.50 0.00 2603.00
1961 0.00 0.00 a 0.00 b 8.00 190.50 521.00 584.00 609.15 a 320.50 127.00 5.00 0.00 a 2365.15
1962 0.00 c 0.00 0.00 82.24 a 389.00 459.50 551.00 583.50 225.52 a 162.23 a 0.00 0.00 2452.99
1963 0.00 0.00 18.00 72.93 a 206.15 a 591.50 651.00 533.72 a 360.00 d 310.00 a 0.50 0.00 a 2743.80
1964 0.00 0.00 c 0.00 a 74.44 c 418.00 565.86 a 803.50 598.50 328.50 74.50 41.00 0.00 2904.31
1965 0.00 0.00 0.00 35.50 347.50 483.50 635.00 579.00 217.00 94.50 13.00 0.00 2405.00
1966 0.00 0.00 9.00 16.00 211.00 541.00 731.50 547.50 334.50 99.00 5.00 0.00 a 2494.50
1967 0.00 0.00 23.00 59.00 174.50 524.00 579.00 500.50 323.50 117.50 1.00 0.00 2302.00
1968 0.00 0.00 37.50 94.66 a 162.00 538.97 a 618.00 613.00 336.50 0.00 z 5.00 0.00 2405.62
1969 0.00 a 0.00 0.00 46.50 299.00 334.00 661.00 674.00 347.00 104.00 0.00 0.00 2465.50
1970 0.00 a 0.00 0.00 119.00 319.00 551.50 698.00 621.50 283.00 87.50 0.00 0.00 2679.50
1971 0.00 0.00 0.50 73.50 194.00 664.00 553.00 585.50 414.50 180.00 3.50 0.00 2668.50
1972 0.00 0.00 0.00 20.00 328.00 461.50 579.00 602.50 307.50 52.00 0.00 0.00 2350.50
1973 0.00 0.00 0.50 33.50 150.50 574.50 673.00 615.00 304.00 174.00 3.00 0.00 2528.00
1974 0.00 0.00 0.00 0.00 z 130.50 g 392.50 716.00 497.55 a 186.00 83.00 9.00 0.00 1884.05
1975 0.00 0.00 0.00 12.00 344.50 547.50 706.50 684.00 203.79 a 139.50 27.50 0.00 2665.29
1976 0.00 0.00 6.50 78.50 187.00 528.50 670.00 544.50 253.00 88.00 0.00 0.00 2356.00
1977 0.00 0.00 8.00 200.00 488.00 510.00 706.00 457.50 315.00 13.50 7.00 0.00 2705.00
1978 0.00 0.00 3.50 23.50 276.50 502.00 587.00 564.00 426.50 37.00 12.50 0.00 2432.50
1979 0.00 0.00 0.00 39.00 194.50 458.00 606.00 494.50 320.50 58.00 3.50 0.00 2174.00
1980 0.00 0.00 0.00 82.00 288.50 486.50 647.50 565.00 299.50 41.50 0.50 0.00 2411.00
1981 0.00 0.50 14.50 74.50 177.00 472.00 585.50 533.50 233.00 36.00 5.00 0.00 2131.50
1982 0.00 0.00 0.00 34.50 295.50 318.00 645.50 516.50 258.50 57.50 2.50 0.00 2128.50
1983 0.00 0.00 8.50 16.00 101.50 483.50 749.00 713.50 325.50 68.50 10.00 0.00 2476.00
1984 0.00 0.00 0.00 27.50 153.00 494.50 531.00 594.50 246.50 117.50 0.00 0.00 2164.50
1985 0.00 a 0.00 3.50 159.00 327.50 385.00 594.50 474.50 348.00 29.50 0.00 0.00 2321.50
1986 0.00 0.00 23.50 105.00 276.00 541.00 675.00 457.50 309.50 79.50 0.00 0.00 2467.00
1987 0.00 0.00 14.50 117.00 362.50 607.00 752.50 539.00 324.00 27.50 15.50 0.00 2759.50
1988 0.00 0.00 0.00 26.00 379.00 631.50 731.00 728.50 348.00 50.50 0.00 0.00 2894.50
1989 0.00 0.00 20.50 53.00 234.50 443.00 703.50 592.50 263.00 132.00 0.00 0.00 2442.00
1990 0.00 0.00 15.50 107.00 130.00 515.00 607.50 593.50 397.00 48.00 19.50 0.00 2433.00
1991 0.00 0.00 14.50 87.00 386.50 640.00 633.50 587.00 279.50 71.50 0.00 0.00 2699.50
1992 0.00 0.00 0.00 20.00 255.50 412.00 442.50 411.50 235.00 106.50 0.00 0.00 1883.00
1993 0.00 0.00 0.00 13.50 199.00 421.50 581.50 583.50 150.00 71.50 0.00 0.00 2020.50
1994 0.00 0.00 3.50 73.00 256.00 551.50 541.50 470.50 392.00 98.50 4.50 0.00 2391.00
1995 0.00 0.00 9.00 2.50 156.00 579.00 660.00 747.50 258.50 83.50 0.00 0.00 2496.00
1996 0.00 0.00 0.00 23.00 158.50 499.50 566.50 540.00 275.50 99.50 0.00 0.00 2162.50
1997 0.00 0.00 9.00 23.50 99.00 546.00 603.50 497.00 319.50 148.50 0.00 0.00 2246.00
1998 0.00 0.00 34.50 67.00 396.50 444.50 633.00 619.50 442.00 61.50 3.00 3.00 2704.50
1999 0.00 a 0.00 7.50 30.00 288.50 504.00 750.00 549.50 284.50 62.00 7.50 0.00 2483.50
2000 0.00 0.00 29.00 51.50 313.50 453.50 619.00 603.50 337.50 152.00 15.50 0.00 2575.00
2001 0.00 0.00 0.00 100.00 264.50 479.00 689.50 648.50 249.00 42.00 51.00 5.50 2529.00
2002 0.00 0.00 0.00 99.00 193.50 575.00 753.50 568.00 391.50 65.00 0.00 0.00 2645.50
2003 0.00 0.00 13.50 77.00 174.00 447.00 637.50 682.00 321.00 116.50 0.00 0.00 2468.50
2004 0.00 0.00 24.50 74.50 186.50 h 429.00 574.00 427.50 416.50 60.00 9.00 0.00 2015.00
2005 0.00 0.00 13.50 94.50 191.50 620.50 663.00 547.50 414.00 137.00 1.50 0.00 2683.00
2006 0.00 0.00 1.50 83.50 254.00 474.00 727.50 596.00 218.50 73.50 12.00 0.00 2440.50
2007 0.00 0.00 35.50 75.50 345.00 519.00 619.00 600.50 372.50 183.50 0.00 0.00 2750.50
2008 0.00 0.00 0.00 37.00 138.00 474.00 624.00 514.50 350.00 73.50 43.50 0.00 2254.50
2009 0.00 0.00 0.00 39.50 206.50 449.50 467.00 489.00 344.00 18.50 6.00 0.00 2020.00
2010 0.00 0.00 9.00 92.50 278.00 515.50 684.00 683.00 276.50 100.50 5.50 0.00 2644.50
2011 0.00 0.00 0.00 33.50 240.50 536.50 792.50 606.50 272.00 143.00 3.50 0.00 2628.00
2012 0.00 0.00 149.00 57.50 386.50 600.50 869.00 573.50 321.50 79.00 12.93 a 0.00 3049.43
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 0.00 0.01 9.43 68.43 263.89 507.51 656.71 596.56 327.80 106.02 7.41 0.10 2529.62
S.D. 0.00 0.05 19.47 45.43 85.99 74.45 84.01 91.20 77.31 58.98 10.69 0.68 263.98
SKEW 0.00 8.94 4.76 0.73 0.21 -0.20 0.30 0.61 0.24 1.21 2.13 7.04 0.03
MAX 0.00 0.50 149.00 200.00 488.00 673.00 884.50 898.00 521.50 315.50 51.00 5.50 3137.50
MIN 0.00 0.00 0.00 2.50 99.00 318.00 442.50 411.50 150.00 13.50 0.00 0.00 1883.00
NO YRS 85 83 85 85 84 87 87 85 88 84 83 85 71