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
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 57.00 0.00 z 0.00 57.00
1899 0.00 0.00 0.00 136.50 257.00 554.00 673.50 698.00 341.00 158.50 11.50 0.00 2830.00
1900 0.00 0.00 0.00 137.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 239.00 0.50 0.00 h 377.00
1901 0.00 0.00 a 0.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 117.00 0.00 a 0.00 i 117.00
1902 0.00 a 0.00 h 3.50 0.00 z 392.67 d 0.00 z 0.00 z 0.00 z 0.00 z 79.00 12.00 0.00 487.17
1903 0.00 a 0.00 0.00 25.50 338.50 463.00 627.50 514.50 260.00 100.23 a 15.50 0.00 2344.73
1904 0.00 0.00 0.00 19.00 262.39 c 483.21 b 612.50 546.00 346.50 126.50 16.00 0.00 2412.11
1905 0.00 0.00 24.50 47.50 211.00 525.50 623.00 723.00 442.50 134.00 8.28 a 0.00 a 2739.28
1906 0.00 a 0.00 a 0.00 97.24 a 293.00 501.60 e 644.50 696.00 476.00 86.00 6.00 0.00 s 2800.34
1907 0.00 i 0.00 c 23.50 4.50 67.00 475.00 690.00 599.00 317.50 77.00 0.50 0.00 2254.00
1908 0.00 0.00 0.00 114.50 284.00 450.00 663.00 568.00 552.00 105.00 0.00 0.00 2736.50
1909 0.00 0.00 0.00 6.50 222.50 498.00 637.00 752.00 328.50 144.50 19.50 0.00 2608.50
1910 0.00 n 0.00 w 94.00 185.17 a 107.00 k 561.00 714.00 605.00 332.50 220.62 a 0.00 0.00 2712.29
1911 0.00 0.00 18.50 69.50 466.50 718.50 688.50 553.50 325.50 78.00 0.00 0.00 2918.50
1912 0.00 0.00 0.00 61.00 291.00 442.50 670.00 562.00 356.50 104.00 1.00 0.00 2488.00
1913 0.00 0.00 0.00 83.00 213.50 606.00 688.00 727.50 400.00 152.50 6.50 0.00 2877.00
1914 0.00 0.00 a 0.00 85.50 345.00 550.00 796.00 624.98 c 336.21 a 248.00 25.00 0.00 3010.69
1915 0.00 0.00 0.00 215.36 b 162.00 369.00 552.00 499.00 315.00 111.00 17.00 0.00 c 2240.36
1916 0.00 a 0.00 0.00 19.50 228.50 406.00 898.00 699.50 340.50 104.00 15.50 0.00 2711.50
1917 0.00 a 0.00 0.00 30.50 183.00 446.50 732.50 580.00 300.50 28.50 6.50 0.00 2308.00
1918 0.00 0.00 a 18.00 6.00 318.27 a 536.50 661.00 669.00 205.71 b 106.50 m 0.00 z 0.00 z 2414.48
1919 0.00 z 0.00 z 7.00 40.50 272.50 645.50 798.00 635.00 466.00 86.00 0.00 0.00 2950.50
1920 0.00 0.00 a 11.37 a 3.62 a 232.00 538.97 a 612.50 529.00 434.00 185.00 0.00 0.00 2546.45
1921 0.00 0.00 23.00 131.00 326.02 a 715.34 a 853.57 b 631.00 441.50 75.36 b 0.00 b 0.00 3196.79
1922 0.00 0.00 0.00 a 24.50 375.50 619.50 616.00 734.00 502.00 196.85 a 4.50 0.00 3072.85
1923 0.00 c 0.00 0.00 69.00 270.00 597.00 818.00 583.50 406.00 80.50 0.52 a 0.00 a 2824.52
1924 0.00 b 0.00 0.00 a 95.00 106.50 441.50 589.50 607.71 b 235.50 215.50 8.00 0.00 a 2299.21
1925 0.00 0.00 16.57 b 143.79 a 249.50 517.00 640.50 661.00 475.50 5.68 a 0.00 0.00 2709.55
1926 0.00 0.00 0.00 75.00 399.68 c 432.32 b 710.00 652.00 318.50 99.50 0.00 0.00 2687.00
1927 0.00 0.00 5.50 70.00 178.77 a 399.00 586.00 501.50 459.50 146.50 0.00 0.00 2346.77
1928 0.00 0.00 b 22.00 43.00 335.50 360.50 687.50 612.50 287.50 163.50 5.00 0.00 2517.00
1929 0.00 0.00 0.00 59.50 257.96 c 479.00 497.00 i 622.50 315.50 91.45 a 0.00 0.00 1825.91
1930 0.00 2.50 8.00 95.50 290.76 b 500.00 799.00 726.00 385.00 156.50 22.00 0.00 2985.26
1931 0.00 0.00 0.00 149.50 263.00 709.50 780.50 666.00 567.50 184.50 21.50 0.00 3342.00
1932 0.00 0.00 0.00 56.00 319.00 614.00 724.50 649.00 304.00 95.50 0.00 0.00 2762.00
1933 0.00 0.00 0.50 64.50 287.00 799.50 780.00 597.00 517.00 105.00 14.00 0.00 3164.50
1934 0.00 0.00 1.50 87.00 625.50 715.00 798.50 607.00 266.50 226.00 6.00 0.00 3333.00
1935 0.00 0.00 24.50 52.50 159.50 423.00 868.00 666.00 405.00 84.50 0.00 0.00 2683.00
1936 0.00 0.00 0.00 47.00 440.72 a 493.50 958.00 789.50 475.00 93.50 0.00 0.00 3297.22
1937 0.00 0.00 0.00 55.00 298.00 457.50 790.50 839.00 419.00 103.50 0.00 0.00 2962.50
1938 0.00 0.00 15.00 123.50 242.00 502.50 726.00 740.50 448.50 254.00 30.50 0.00 a 3082.50
1939 0.00 0.00 42.50 96.50 468.00 602.00 765.50 631.50 529.50 115.00 2.00 0.00 3252.50
1940 0.00 0.00 0.00 26.00 201.50 526.00 750.00 559.00 423.50 150.50 3.00 0.00 a 2639.50
1941 0.00 0.00 a 0.00 123.50 448.50 549.31 a 741.00 676.50 410.50 103.00 9.50 0.00 3061.81
1942 0.00 0.00 6.00 143.50 223.00 476.00 641.00 594.50 295.50 126.00 0.00 0.00 2505.50
1943 0.00 0.00 16.00 40.50 168.00 567.50 705.00 621.50 205.00 120.90 a 0.00 0.00 2444.40
1944 0.00 0.00 a 0.00 9.50 385.00 564.00 604.50 583.00 291.50 55.00 26.00 0.00 2518.50
1945 0.00 0.00 26.00 37.00 122.00 333.50 593.00 591.50 317.00 81.00 0.00 0.00 2101.00
1946 0.00 0.00 31.50 113.00 162.50 514.00 691.50 539.50 303.00 110.50 0.00 0.00 2465.50
1947 0.00 0.00 0.00 28.00 155.00 a 404.50 658.50 833.50 432.50 265.50 2.50 0.00 2780.00
1948 0.00 0.00 5.50 90.00 220.50 475.50 739.50 664.00 485.50 60.50 9.00 0.00 2750.00
1949 0.00 a 0.00 0.00 71.00 329.50 629.50 791.50 699.00 231.50 177.50 14.50 0.00 2944.00
1950 0.00 0.00 0.00 5.69 a 211.50 520.00 563.50 477.00 315.00 169.50 11.50 0.00 2273.69
1951 0.00 0.00 a 0.00 b 39.50 348.50 397.00 634.00 539.00 218.50 132.00 0.50 0.00 2309.00
1952 0.00 0.00 a 0.00 131.50 256.50 604.50 696.50 549.00 364.50 44.00 13.00 0.00 2659.50
1953 0.00 0.00 1.00 19.50 257.00 600.50 680.50 688.00 349.50 241.00 25.50 0.00 2862.50
1954 0.00 0.00 0.00 90.00 179.50 593.50 742.00 605.00 359.00 71.00 2.50 0.00 2642.50
1955 0.00 0.00 1.00 136.00 412.00 495.50 861.00 799.00 394.50 125.50 0.00 0.00 3224.50
1956 0.00 0.00 0.00 2.00 296.50 668.00 598.50 638.50 286.00 209.50 7.00 0.00 2706.00
1957 0.00 0.00 0.00 107.50 190.00 491.50 808.50 603.00 284.00 96.00 1.00 0.00 2581.50
1958 0.00 0.00 0.00 55.00 311.00 357.50 595.00 657.50 363.50 146.50 1.00 0.00 2487.00
1959 0.00 0.00 0.00 36.50 321.50 597.50 645.50 744.50 354.50 17.00 0.00 0.00 2717.00
1960 0.00 0.00 0.00 82.50 236.50 452.00 665.00 627.00 381.50 116.50 0.50 0.00 2561.50
1961 0.00 0.00 2.50 8.50 179.50 535.00 617.00 642.50 301.03 a 123.50 0.50 0.00 2410.03
1962 0.00 0.00 0.00 76.50 377.50 478.00 571.00 588.50 220.50 153.00 0.00 0.50 2465.50
1963 0.00 0.00 26.50 76.50 210.50 623.50 677.50 574.00 367.50 319.00 1.00 0.00 2876.00
1964 0.00 0.00 0.00 65.50 360.00 554.00 756.00 487.50 276.00 77.00 24.50 0.00 2600.50
1965 0.00 0.00 0.00 17.50 316.00 513.00 642.50 542.00 115.00 103.00 4.00 0.00 2253.00
1966 0.00 0.00 10.50 16.50 179.50 533.00 752.00 520.50 312.50 61.50 0.00 0.00 2386.00
1967 0.00 0.00 12.00 32.50 154.50 485.50 587.00 483.50 283.50 106.00 0.00 0.00 2144.50
1968 0.00 0.00 29.00 44.50 128.50 503.00 600.50 565.00 268.00 122.00 5.50 0.00 2266.00
1969 0.00 0.00 0.00 43.00 282.50 317.50 654.00 641.00 330.00 76.50 5.00 0.00 2349.50
1970 0.00 0.00 0.00 87.00 271.50 545.50 658.50 579.00 301.00 90.50 0.00 0.00 2533.00
1971 0.00 0.00 0.00 57.00 164.50 644.50 529.00 567.00 346.00 148.00 0.00 0.00 2456.00
1972 0.00 0.00 0.00 14.50 330.00 460.50 578.00 590.50 285.50 65.00 0.00 0.00 2324.00
1973 0.00 0.00 4.50 41.00 167.50 567.50 669.00 675.50 300.50 161.00 2.50 0.00 2589.00
1974 0.00 0.00 0.00 74.50 166.00 463.00 794.50 524.00 231.00 90.00 5.50 0.00 2348.50
1975 0.00 0.00 0.00 4.50 332.50 517.00 759.00 672.50 228.50 125.00 37.50 0.00 2676.50
1976 0.00 0.00 6.00 99.50 237.50 573.00 739.00 623.50 315.50 101.00 0.00 0.00 2695.00
1977 0.00 0.00 10.00 220.00 552.50 594.00 775.00 535.50 396.50 31.00 7.50 0.00 3122.00
1978 0.00 0.00 8.00 22.50 293.50 524.50 638.00 621.50 501.00 69.00 18.00 0.00 2696.00
1979 0.00 0.00 0.00 32.50 212.50 504.00 679.50 563.00 375.50 67.00 1.00 0.00 2435.00
1980 0.00 0.00 0.00 100.50 369.50 556.00 736.50 628.00 353.00 74.00 4.50 0.00 2822.00
1981 0.00 0.00 15.50 79.50 230.00 551.50 692.00 602.50 281.00 23.00 13.00 0.00 2488.00
1982 0.00 0.00 0.00 32.00 303.00 351.00 702.00 571.00 272.50 69.50 1.00 0.00 2302.00
1983 0.00 0.00 7.00 17.50 118.50 501.00 807.00 750.50 345.00 57.00 8.00 0.00 2611.50
1984 0.00 0.00 0.00 13.50 192.50 527.50 610.00 678.50 262.50 125.50 0.00 0.00 2410.00
1985 0.00 0.00 3.50 163.00 387.50 426.00 656.00 491.50 319.50 31.50 0.00 0.00 2478.50
1986 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 572.00 712.00 474.50 320.00 73.50 0.00 0.00 2152.00
1987 0.00 0.00 13.50 153.00 450.00 662.50 760.00 543.50 361.00 30.50 16.00 0.00 2990.00
1988 0.00 0.00 0.00 39.50 472.00 742.00 760.50 716.00 377.00 47.50 0.00 0.00 3154.50
1989 0.00 0.00 11.00 68.50 279.50 504.50 727.50 617.00 300.50 151.50 0.00 0.00 2660.00
1990 0.00 0.00 13.50 124.50 180.50 554.50 625.00 595.50 417.50 65.50 23.00 0.00 2599.50
1991 0.00 0.00 4.50 101.00 386.50 660.50 662.00 614.50 316.50 69.50 0.00 0.00 2815.00
1992 0.00 0.00 0.00 25.00 305.00 485.50 454.00 454.50 265.50 114.00 0.00 0.00 2103.50
1993 0.00 0.00 0.00 16.50 198.00 429.50 605.00 612.00 174.50 72.50 0.00 0.00 2108.00
1994 0.00 0.00 0.00 74.00 355.50 591.00 555.50 497.00 409.00 107.00 1.50 0.00 2590.50
1995 0.00 0.00 4.50 3.00 180.00 586.50 671.50 724.50 287.00 84.50 0.00 0.00 2541.50
1996 0.00 0.00 0.00 17.00 157.50 545.00 588.50 562.00 285.50 114.50 0.00 0.00 2270.00
1997 0.00 0.00 4.00 29.50 118.00 610.00 639.00 545.50 375.50 182.50 0.00 0.00 2504.00
1998 0.00 0.00 18.50 65.50 437.50 449.50 673.50 644.00 482.50 79.00 2.50 1.00 2853.50
1999 0.00 0.00 7.50 34.50 308.50 514.00 761.50 590.50 294.83 a 72.50 33.50 0.00 2617.33
2000 0.00 0.50 31.00 74.00 346.00 485.50 639.00 627.00 345.50 157.00 16.00 0.00 2721.50
2001 0.00 0.00 0.00 86.00 293.50 532.50 728.50 a 645.83 a 287.00 72.00 50.36 b 0.00 a 2695.69
2002 0.00 0.00 0.00 99.50 200.00 606.00 797.50 559.00 388.50 45.50 0.50 0.00 2696.50
2003 0.00 0.00 20.00 115.50 229.50 490.00 693.00 691.50 338.50 138.00 0.00 0.00 2716.00
2004 0.00 0.00 22.00 89.50 246.50 432.50 612.00 413.00 448.00 107.50 7.50 0.00 2378.50
2005 0.00 0.00 12.50 137.50 224.50 661.50 753.00 616.50 467.00 167.50 11.50 0.00 3051.50
2006 0.00 0.00 0.00 121.50 335.50 589.00 778.50 644.00 276.50 109.50 11.00 0.00 2865.50
2007 0.00 0.00 17.00 98.00 378.00 574.00 666.00 667.00 428.00 172.50 1.00 0.00 a 3001.50
2008 0.00 d 0.00 0.00 46.00 229.50 539.50 718.00 618.50 398.50 100.00 47.00 0.00 2697.00
2009 0.00 0.00 2.50 65.00 296.50 510.00 561.00 559.00 421.50 9.00 13.00 0.00 2437.50
2010 0.00 0.00 12.50 156.00 328.00 554.50 748.00 763.00 329.00 168.50 18.00 0.00 3077.50
2011 0.00 0.00 0.00 27.00 273.50 574.50 841.00 670.50 311.00 182.50 0.00 0.00 2880.00
2012 0.00 0.00 130.00 74.50 428.50 641.50 875.00 624.00 342.93 a 95.50 10.50 0.00 3222.43
2013 0.00 a 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 0.03 7.95 69.33 277.50 530.75 694.23 617.98 348.99 115.02 7.12 0.01 2668.38
S.D. 0.00 0.24 16.90 48.17 99.64 89.96 87.88 80.96 83.84 58.26 10.20 0.11 298.43
SKEW 0.00 9.86 4.68 0.75 0.62 0.21 0.28 0.27 0.27 0.83 1.93 8.30 0.32
MAX 0.00 2.50 130.00 220.00 625.50 799.50 958.00 839.00 567.50 319.00 50.36 1.00 3342.00
MIN 0.00 0.00 0.00 2.00 67.00 317.50 454.00 413.00 115.00 5.68 0.00 0.00 2101.00
NO YRS 111 111 114 111 110 111 110 111 111 114 113 111 104