date! ,

Monthly Total Growing Degree Days

(a vali)

Base Temperature = 50 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 0.00 0.00 14.00 180.00 578.50 720.15 e 0.00 z 321.35 d 130.50 0.00 z 0.00 d 1944.50
1894 0.00 a 0.00 14.00 88.93 b 255.75 c 0.00 z 370.50 q 635.50 c 511.20 e 47.05 c 0.00 c 0.00 1552.43
1895 0.00 i 0.00 0.00 z 62.59 a 434.00 395.50 n 0.00 z 361.50 o 579.00 48.50 21.50 0.00 1145.59
1896 0.00 0.00 0.00 164.00 448.00 499.29 b 0.00 z 608.08 e 218.00 51.50 0.00 n 0.00 b 1988.86
1897 0.00 0.00 0.00 53.00 203.50 401.00 718.00 476.00 507.50 0.00 z 0.00 z 0.00 a 2359.00
1898 0.00 z 0.00 z 0.00 z 101.67 c 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 72.69 b 7.00 0.00 181.36
1899 0.00 0.00 0.00 216.00 349.00 0.00 z 695.00 745.50 277.50 135.00 7.00 0.00 2425.00
1900 0.00 0.00 0.00 95.00 278.50 0.00 z 0.00 z 0.00 z 447.78 c 0.00 z 3.50 0.00 z 824.78
1901 0.00 b 0.00 z 0.00 a 113.50 326.53 a 564.44 c 839.58 a 0.00 z 379.04 d 0.00 z 6.00 g 0.00 u 2223.10
1902 0.00 d 0.00 0.00 q 0.00 z 235.50 f 462.00 e 663.00 496.00 b 314.48 a 76.95 c 22.50 i 0.00 f 2012.43
1903 0.00 d 0.00 b 19.00 47.07 a 310.60 e 412.50 668.16 c 0.00 z 186.50 j 63.00 18.50 0.00 1538.83
1904 0.00 a 0.00 a 0.00 20.00 230.90 b 0.00 z 625.74 d 535.55 b 338.00 109.50 11.00 0.00 b 1870.69
1905 0.00 r 0.00 22.50 51.96 b 162.75 a 522.93 a 578.87 e 617.33 b 425.69 a 134.52 c 0.00 e 0.00 2516.55
1906 0.00 0.00 a 0.00 b 39.23 d 231.47 a 473.28 a 598.82 a 691.82 a 493.45 a 90.86 b 0.00 0.00 e 2618.92
1907 0.00 b 0.00 0.50 2.50 82.50 433.27 d 616.50 524.23 c 315.00 c 73.00 0.00 0.00 a 2047.50
1908 0.00 0.00 0.00 h 66.50 296.57 a 471.00 668.00 593.00 580.00 136.52 e 0.52 a 0.00 2812.10
1909 0.00 b 0.00 0.00 0.00 a 193.50 495.00 a 630.50 646.23 e 297.93 a 74.40 a 18.10 a 0.00 a 2355.67
1910 0.00 0.00 88.50 83.50 136.06 d 550.20 e 736.00 633.50 319.82 b 170.00 0.00 0.00 2717.58
1911 0.00 0.00 0.00 59.50 372.53 b 636.50 676.50 554.00 338.00 51.00 1.50 0.00 2689.53
1912 0.00 0.00 0.00 41.00 251.00 478.00 660.30 a 455.50 383.00 70.50 3.00 0.00 2342.30
1913 0.00 a 0.00 0.00 88.00 197.76 b 541.50 609.50 583.00 358.00 121.50 7.50 0.00 2506.76
1914 0.00 0.00 0.00 39.00 291.00 449.48 a 700.17 b 576.50 327.32 b 187.00 3.00 k 0.00 d 2570.48
1915 0.00 0.00 0.00 213.00 90.00 321.50 498.00 391.00 332.50 103.00 16.50 0.00 1965.50
1916 0.00 0.00 0.00 f 27.00 234.50 365.50 893.50 700.00 337.76 a 118.00 11.00 0.00 a 2687.26
1917 0.00 0.00 0.00 31.50 146.50 364.50 686.50 542.50 314.48 a 23.00 1.50 0.00 2110.48
1918 0.00 b 0.00 18.00 16.50 346.00 505.00 633.00 728.00 211.00 186.00 14.50 0.00 2658.00
1919 0.00 0.00 0.00 43.50 216.50 688.00 758.00 580.50 437.50 122.00 0.50 0.00 2846.50
1920 0.00 0.00 11.00 10.00 218.00 558.50 581.00 534.50 468.00 294.50 0.00 0.00 2675.50
1921 0.00 0.00 29.00 152.50 367.50 678.00 902.50 659.00 499.50 87.50 0.00 0.00 3375.50
1922 0.00 a 0.00 a 0.00 26.50 434.00 466.00 276.50 j 598.50 365.50 127.50 3.00 0.00 a 2021.00
1923 0.00 0.00 0.00 60.00 231.50 641.50 714.00 571.00 358.50 93.00 0.00 0.00 e 2669.50
1924 0.00 c 0.00 0.00 45.00 117.50 424.00 602.00 620.50 233.50 174.50 16.00 0.00 2233.00
1925 0.00 d 0.00 5.00 96.00 162.50 549.83 a 620.50 613.00 471.50 21.50 0.00 0.00 2539.83
1926 0.00 0.00 0.00 48.00 246.00 346.00 628.50 588.00 302.50 87.00 0.00 0.00 2246.00
1927 0.00 0.00 8.00 38.50 131.50 382.00 594.50 448.00 428.50 114.50 5.00 0.00 2150.50
1928 0.00 0.00 0.50 13.97 a 248.00 a 343.50 638.50 620.00 281.90 a 152.50 0.50 0.00 2299.36
1929 0.00 0.00 0.50 67.50 182.00 395.00 661.50 529.00 336.96 b 99.50 0.00 0.00 a 2271.96
1930 0.00 1.50 3.00 54.50 276.50 523.50 696.50 657.00 417.50 147.00 25.00 0.00 2802.00
1931 0.00 0.00 0.00 66.00 190.00 623.50 792.50 597.50 540.50 152.00 43.00 0.00 3005.00
1932 0.00 0.00 0.00 17.50 218.50 597.50 691.50 657.50 339.50 80.50 0.00 0.00 2602.50
1933 0.00 0.00 0.00 30.50 315.50 726.00 723.00 566.00 502.50 83.50 12.00 0.00 2959.00
1934 0.00 0.00 0.00 48.50 438.50 640.00 689.50 535.00 288.00 139.50 2.50 0.00 2781.50
1935 0.00 0.00 b 0.00 a 35.00 121.50 382.50 803.50 635.00 347.00 91.00 0.00 0.00 2415.50
1936 0.00 0.00 2.50 17.00 395.50 423.00 828.50 712.50 444.50 76.50 1.50 0.00 2901.50
1937 0.00 0.00 0.00 11.50 237.50 473.50 732.50 799.00 410.00 78.50 1.00 0.00 2743.50
1938 0.00 0.00 17.00 93.00 241.50 479.00 674.00 700.50 332.50 198.40 a 50.00 0.00 2785.90
1939 0.00 0.00 14.00 59.00 331.50 517.00 733.00 624.50 454.50 122.50 0.00 0.00 2856.00
1940 0.00 0.00 0.00 18.50 189.00 519.00 728.00 617.00 401.00 134.50 2.50 0.00 2609.50
1941 0.00 0.00 0.00 127.00 370.00 564.00 741.50 663.00 445.00 132.00 12.00 0.00 3054.50
1942 0.00 0.00 0.00 172.00 214.50 505.50 663.00 617.00 358.00 140.50 8.00 0.00 2678.50
1943 0.00 0.00 18.00 29.50 181.50 597.50 730.00 678.50 232.00 107.50 0.00 0.00 2574.50
1944 0.00 0.00 0.00 9.00 375.00 596.50 671.50 711.00 387.50 90.00 33.00 0.00 2873.50
1945 0.00 0.00 51.00 75.50 168.50 406.03 a 597.50 637.50 359.00 74.00 3.50 0.00 2372.53
1946 0.00 0.00 21.50 92.00 171.50 468.00 674.00 560.50 346.50 185.50 0.00 0.00 2519.50
1947 0.00 0.00 0.00 15.50 98.50 403.00 630.00 832.50 451.00 336.50 0.50 0.00 2767.50
1948 0.00 0.00 0.00 104.00 184.50 488.50 708.50 676.00 469.50 63.00 12.00 0.00 2706.00
1949 0.00 0.00 0.00 67.50 289.50 648.00 760.00 674.50 259.50 211.50 12.00 0.00 2922.50
1950 0.00 0.00 0.00 6.50 228.50 502.50 586.00 477.00 326.00 186.00 10.50 0.00 2323.00
1951 0.00 0.00 0.00 29.00 326.50 424.00 637.50 516.50 272.00 106.00 0.00 0.00 2311.50
1952 0.00 0.00 0.00 141.00 212.50 565.00 740.00 592.00 391.50 40.50 2.50 0.00 2685.00
1953 0.00 0.00 0.00 18.50 250.50 580.00 704.00 650.00 363.00 214.50 42.50 0.00 2823.00
1954 0.00 0.00 0.00 73.00 145.50 556.00 657.00 555.00 346.50 97.50 0.00 0.00 2430.50
1955 0.00 0.00 0.00 84.00 292.00 472.00 799.00 752.50 387.00 136.00 0.00 0.00 2922.50
1956 0.00 0.00 0.00 4.00 192.00 558.00 544.50 578.00 257.50 193.00 27.00 0.00 2354.00
1957 0.00 0.00 0.00 122.50 184.00 494.00 678.00 586.50 286.00 55.28 a 0.00 0.00 2406.28
1958 0.00 0.00 0.00 56.00 237.00 358.00 586.00 627.50 348.00 134.00 20.50 0.00 2367.00
1959 0.00 a 0.00 0.00 31.00 357.00 538.00 640.50 738.50 397.00 39.50 0.00 0.00 2741.50
1960 0.00 0.00 0.00 102.00 217.00 418.50 585.00 637.50 395.50 91.50 2.00 0.00 2449.00
1961 0.00 0.00 2.50 12.50 164.00 498.50 638.50 615.00 403.50 144.50 8.50 0.00 2487.50
1962 0.00 0.00 0.00 76.50 386.50 479.00 546.50 607.00 261.00 180.00 0.00 2.00 2538.50
1963 0.00 0.00 4.00 67.50 181.00 567.50 705.00 560.00 342.00 336.00 3.50 0.00 2766.50
1964 0.00 0.00 1.50 68.00 370.00 530.50 703.50 531.00 301.00 91.00 47.50 0.00 2644.00
1965 0.00 0.00 0.00 13.00 360.50 451.50 613.50 535.00 287.00 100.50 7.50 0.00 2368.50
1966 0.00 0.00 3.50 17.50 174.50 548.00 745.50 558.50 302.50 93.00 2.50 0.00 2445.50
1967 0.00 0.00 18.50 31.50 118.50 508.50 571.00 470.50 321.50 103.50 0.00 0.00 2143.50
1968 0.00 0.00 23.50 51.50 153.00 488.50 619.00 613.00 375.50 150.00 5.50 0.00 2479.50
1969 0.00 0.00 0.00 29.50 265.50 303.00 623.00 689.50 329.50 111.50 0.00 0.00 2351.50
1970 0.00 0.00 0.00 115.50 278.00 553.50 713.00 649.00 363.00 118.50 0.00 0.00 2790.50
1971 0.00 0.00 0.00 31.50 152.50 613.00 605.50 554.50 455.50 225.50 4.50 0.00 2642.50
1972 0.00 0.00 0.00 12.50 352.50 422.50 623.00 602.50 307.00 62.50 0.00 0.00 2382.50
1973 0.00 0.00 2.50 38.50 128.00 568.50 710.00 694.00 368.00 214.50 0.00 0.00 2724.00
1974 0.00 0.00 0.00 93.00 160.00 414.50 716.00 584.00 249.50 91.00 16.00 0.00 2324.00
1975 0.00 0.00 0.00 10.00 350.50 509.00 704.00 635.00 215.00 137.00 52.50 0.00 2613.00
1976 0.00 0.00 8.50 83.00 170.50 602.50 722.50 590.00 320.00 85.50 0.00 0.00 2582.50
1977 0.00 0.00 1.00 162.00 491.00 455.50 754.00 535.50 362.00 31.00 21.00 0.00 2813.00
1978 0.00 0.00 6.00 9.50 306.00 509.50 617.00 657.00 435.00 60.50 12.50 0.00 2613.00
1979 0.00 0.00 0.00 39.50 205.50 503.50 666.50 560.50 390.00 67.50 4.00 0.00 2437.00
1980 0.00 0.00 0.00 82.50 327.50 479.00 718.50 632.50 337.50 44.00 1.00 0.00 2622.50
1981 0.00 0.00 18.50 41.50 256.00 566.67 c 706.00 633.00 290.00 38.23 a 2.07 a 0.00 2551.97
1982 0.00 0.00 0.00 32.00 413.50 374.50 720.50 548.50 297.00 124.00 3.50 3.50 2517.00
1983 0.00 0.00 0.00 21.00 91.50 508.50 753.00 673.50 323.50 89.50 4.50 0.00 2465.00
1984 0.00 0.00 0.00 28.50 159.00 102.00 x 413.00 k 641.00 288.00 111.00 1.50 0.00 1229.00
1985 0.00 0.00 0.00 143.50 300.50 385.50 584.00 467.50 297.00 51.00 1.00 0.00 2230.00
1986 0.00 0.00 32.50 108.50 308.00 491.50 699.00 490.00 347.00 69.00 1.00 0.00 2546.50
1987 0.00 0.00 8.00 96.00 315.50 618.00 761.00 586.50 367.00 30.50 21.00 0.00 2803.50
1988 0.00 0.00 b 0.00 b 22.00 366.00 625.50 766.00 737.00 375.50 56.50 1.50 0.00 2950.00
1989 0.00 0.00 a 14.50 27.00 236.00 442.00 693.50 583.00 310.50 156.00 0.00 0.00 2462.50
1990 0.00 0.00 20.00 132.00 134.00 504.00 621.50 580.00 410.00 56.50 29.50 0.00 2487.50
1991 0.00 0.00 9.50 99.50 411.50 630.50 621.50 578.00 323.00 77.50 0.50 0.00 2751.50
1992 0.00 0.00 0.00 21.50 273.50 422.50 503.50 488.00 0.00 z 94.00 0.00 0.00 1803.00
1993 0.00 0.00 0.00 15.50 234.00 425.00 646.50 652.00 192.00 54.00 0.00 0.00 2219.00
1994 0.00 0.00 1.00 53.50 255.00 574.00 585.50 505.00 425.50 113.00 3.50 0.00 2516.00
1995 0.00 0.00 17.00 0.00 194.00 658.50 713.50 742.50 294.00 107.00 0.00 0.00 2726.50
1996 0.00 0.00 0.00 28.50 147.50 486.00 569.00 619.50 356.00 108.00 0.00 0.00 2314.50
1997 0.00 0.00 4.00 39.00 79.00 555.00 615.00 484.50 355.50 163.50 6.00 0.00 2301.50
1998 0.00 0.00 39.50 59.50 417.50 498.00 686.00 671.50 464.00 103.50 9.50 4.50 2953.50
1999 0.00 0.00 7.00 55.50 318.50 572.50 782.50 585.50 346.00 77.50 34.50 0.00 2779.50
2000 0.00 0.00 27.50 34.00 304.50 465.00 a 625.50 628.50 323.79 a 165.00 23.00 0.00 2596.79
2001 0.00 0.00 0.00 92.00 288.00 487.76 a 710.50 698.50 292.24 a 67.17 a 34.50 7.00 2677.67
2002 0.00 0.00 0.00 108.50 172.50 589.00 831.00 689.00 492.50 85.00 10.50 0.00 2978.00
2003 0.00 0.00 8.00 67.00 216.50 483.50 672.00 723.50 392.00 115.00 0.00 0.00 2677.50
2004 0.00 0.00 13.00 73.50 179.50 429.50 616.50 479.00 500.50 96.50 6.50 0.00 2394.50
2005 0.00 0.00 9.50 85.50 218.00 717.50 759.50 707.50 511.00 172.00 6.00 0.00 3186.50
2006 0.00 0.00 4.50 117.50 282.50 542.50 782.50 686.50 307.50 64.00 11.50 0.00 2799.00
2007 0.00 0.00 31.50 85.00 376.00 602.00 680.50 656.00 412.50 231.50 0.00 0.00 3075.00
2008 0.00 0.00 a 0.00 66.00 175.50 516.00 667.50 614.00 406.50 80.50 33.50 0.00 2559.50
2009 0.00 0.00 2.00 43.50 266.50 511.00 553.50 582.50 434.00 16.50 9.00 0.00 2418.50
2010 0.00 0.00 4.00 121.50 369.00 558.50 771.50 746.00 321.50 139.50 12.50 0.00 3044.00
2011 0.00 0.00 0.00 22.50 215.50 505.00 793.50 681.50 276.50 159.00 0.50 0.00 2654.00
2012 0.00 0.00 146.50 31.50 374.50 637.00 891.00 659.50 352.50 52.50 h 0.00 z 0.00 z 3092.50
Period of Record Statistics
MEAN 0.00 0.01 7.24 60.21 251.69 508.26 680.89 610.97 363.06 112.98 8.36 0.15 2594.71
S.D. 0.00 0.14 17.97 44.96 93.20 87.44 78.79 79.88 79.18 59.05 12.10 0.85 259.55
SKEW 0.00 10.72 5.16 1.10 0.33 0.07 0.37 -0.03 0.46 1.27 1.89 6.38 0.17
MAX 0.00 1.50 146.50 216.00 491.00 726.00 902.50 832.50 580.00 336.50 52.50 7.00 3375.50
MIN 0.00 0.00 0.00 0.00 79.00 303.00 498.00 391.00 192.00 16.50 0.00 0.00 1965.50
NO YRS 117 118 115 119 118 113 113 114 117 116 113 116 100