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 z 0.00 z 170.50 b 571.73 d 598.41 c 506.00 382.00 12.00 r 8.08 d 0.00 2236.72
1894 0.00 0.00 20.50 108.10 a 277.45 a 593.50 701.50 663.18 c 390.52 a 98.34 b 0.00 0.00 2853.09
1895 0.00 b 0.00 10.50 157.50 311.50 452.00 467.00 f 23.00 z 0.00 z 0.00 z 0.00 z 0.00 z 931.50
1896 0.00 z 0.00 0.00 134.00 376.00 503.50 598.00 588.50 208.00 27.00 0.00 0.00 2435.00
1897 0.00 m 0.00 0.00 c 53.50 221.00 454.50 696.98 a 436.58 a 559.50 191.00 3.75 b 0.00 2616.82
1898 0.00 0.00 b 2.00 f 46.00 228.00 538.50 636.50 590.00 387.00 67.54 c 0.00 a 0.00 c 2493.54
1899 0.00 b 0.00 a 0.00 b 121.00 223.00 508.00 614.00 682.00 318.50 156.50 4.00 0.00 2627.00
1900 0.00 0.00 0.50 137.50 385.50 532.00 650.00 776.00 368.50 267.50 2.50 0.00 3120.00
1901 0.00 b 0.00 0.00 d 87.50 f 309.47 b 552.00 914.50 699.05 a 334.00 134.52 c 0.00 0.00 d 2943.53
1902 0.00 b 0.00 b 5.54 c 56.50 341.00 411.00 661.50 551.50 225.00 a 111.50 6.72 a 0.00 c 2370.26
1903 0.00 a 0.00 0.00 b 28.50 291.50 410.00 604.00 487.22 a 241.00 68.09 c 3.62 a 0.00 d 2133.93
1904 0.00 a 0.00 a 0.00 b 14.50 222.00 415.00 523.00 444.50 299.48 a 114.91 b 9.64 b 0.00 2043.04
1905 0.00 c 0.00 15.50 c 53.00 140.50 426.50 538.50 670.50 385.00 116.77 a 0.00 0.00 b 2346.27
1906 0.00 0.00 a 0.00 a 72.00 280.50 412.50 530.00 627.00 389.00 91.40 b 2.07 a 0.00 2404.47
1907 0.00 c 0.00 19.50 4.00 78.50 396.50 608.00 541.00 291.50 43.92 a 0.52 a 0.00 a 1983.43
1908 0.00 a 0.00 0.00 114.00 236.00 380.00 590.00 509.50 529.00 84.45 b 1.00 0.00 a 2443.95
1909 0.00 0.00 0.00 b 3.50 202.00 452.00 598.00 743.00 278.04 b 118.32 a 29.48 a 0.00 2424.33
1910 0.00 a 0.00 83.50 142.50 110.00 492.00 621.00 528.00 276.50 218.00 1.61 b 0.00 2473.11
1911 0.00 0.00 7.50 46.50 386.50 686.00 655.50 515.50 332.50 33.58 a 0.00 c 0.00 a 2663.58
1912 0.00 b 0.00 a 0.00 60.52 a 249.00 371.38 a 628.00 528.50 305.00 91.45 a 4.14 a 0.00 a 2237.98
1913 0.00 0.00 0.00 b 73.00 198.50 583.00 667.50 744.52 a 421.50 138.47 a 11.25 b 0.00 a 2837.73
1914 0.00 0.00 0.00 83.50 292.00 559.50 743.00 625.50 330.52 a 223.50 16.07 b 0.00 2873.59
1915 0.00 a 0.00 0.00 206.00 155.00 366.50 527.00 441.50 296.50 85.50 0.60 e 0.00 2078.60
1916 0.00 0.00 l 0.00 0.00 z 0.00 z 0.00 z 0.00 z 615.98 d 313.00 98.50 12.00 0.00 a 1039.48
1917 0.00 0.00 0.50 25.00 128.00 386.00 664.43 a 505.00 302.50 30.50 0.00 0.00 2041.93
1918 0.00 0.00 18.50 4.50 317.75 a 496.00 587.00 681.00 195.50 152.42 a 9.11 b 0.00 k 2461.77
1919 0.00 0.00 a 1.00 f 15.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 15.50
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 152.02 e 417.50 865.50 684.50 400.00 67.00 0.00 0.00 2586.52
1936 0.00 0.00 0.00 57.00 395.50 528.00 950.50 818.50 486.50 86.00 0.00 0.00 a 3322.00
1937 0.00 0.00 0.00 40.50 320.00 455.00 723.00 795.15 a 396.00 76.50 1.00 0.00 2807.15
1938 0.00 0.00 9.00 106.50 197.00 504.00 725.50 737.00 435.50 255.00 22.00 0.00 2991.50
1939 0.00 0.00 33.00 76.50 455.50 549.50 721.00 551.50 531.00 99.50 3.00 0.00 3020.50
1940 0.00 a 0.00 0.00 27.00 223.00 552.00 746.50 545.00 472.00 194.50 0.00 0.00 2760.00
1941 0.00 0.00 0.00 98.50 431.00 514.50 682.50 670.00 415.50 98.50 10.00 0.00 2920.50
1942 0.00 0.00 1.50 154.50 204.50 503.00 671.00 638.50 299.00 130.50 5.00 0.00 2607.50
1943 0.00 0.00 35.50 53.00 181.50 540.50 711.50 661.50 229.00 108.50 0.00 0.00 2521.00
1944 2.00 0.00 0.00 13.50 411.50 557.50 612.50 598.50 336.00 83.00 21.50 0.00 2636.00
1945 0.00 0.00 27.50 39.50 147.00 347.50 617.00 622.00 327.00 97.00 0.00 0.00 2224.50
1946 0.00 0.00 49.50 120.00 155.00 526.00 675.50 529.50 326.00 108.50 0.00 0.00 2490.00
1947 0.00 0.00 0.00 32.00 148.00 398.50 673.50 856.50 465.00 325.00 0.00 0.00 2898.50
1948 0.00 z 0.00 z 0.00 z 140.50 230.50 461.00 686.00 678.00 474.00 72.33 a 5.50 0.00 2747.83
1949 0.00 0.00 0.00 94.00 372.00 594.50 741.50 656.00 237.50 140.50 5.00 0.00 2841.00
1950 0.00 0.00 0.00 a 15.50 197.50 494.50 515.63 a 481.00 323.28 a 155.00 7.00 0.00 2189.41
1951 0.00 0.00 0.00 44.50 270.00 349.00 591.00 542.00 202.50 114.50 0.00 0.00 a 2113.50
1952 0.00 0.00 a 0.00 103.50 232.00 636.00 668.57 a 589.50 399.00 37.50 8.00 0.00 2674.07
1953 0.00 0.00 4.50 30.52 a 302.00 629.00 680.50 659.00 354.50 217.50 16.50 0.00 2894.02
1954 0.00 0.00 0.00 123.50 182.50 586.00 769.50 609.50 362.00 69.00 7.00 0.00 2709.00
1955 0.00 0.00 0.00 149.50 394.50 466.00 855.00 805.00 427.00 147.00 0.00 0.00 3244.00
1956 0.00 0.00 a 0.00 4.50 331.38 b 710.50 599.00 606.00 308.50 233.50 0.00 0.00 2793.38
1957 0.00 0.00 0.00 92.00 216.50 457.50 804.50 608.50 279.50 88.50 0.00 0.00 2547.00
1958 0.00 0.00 0.00 54.00 377.50 435.00 616.50 727.50 443.50 205.50 5.50 0.00 2865.00
1959 0.00 0.00 0.00 67.50 345.00 654.00 679.00 785.50 385.00 37.50 0.00 0.00 2953.50
1960 0.00 0.00 0.00 106.00 282.50 486.00 684.50 695.50 397.00 135.00 1.00 0.00 2787.50
1961 0.00 0.00 6.50 20.50 203.00 528.50 641.00 658.50 316.50 125.50 0.00 0.00 2500.00
1962 0.00 0.00 0.00 105.50 412.50 499.50 615.00 610.00 267.00 190.00 0.00 2.50 2702.00
1963 0.00 0.00 39.50 117.50 300.00 673.00 732.50 630.50 444.50 335.00 0.00 0.00 3272.50
1964 0.00 0.00 0.00 94.50 429.50 577.50 799.50 552.50 349.50 114.50 23.50 0.00 2941.00
1965 0.00 0.00 0.00 66.00 395.50 558.00 682.00 588.50 171.00 130.50 9.50 0.00 2601.00
1966 0.00 0.00 23.00 36.50 260.00 556.00 804.50 521.00 301.50 101.50 0.00 0.00 2604.00
1967 0.00 0.00 39.50 75.50 190.00 495.00 639.00 563.50 345.50 136.00 1.00 0.00 2485.00
1968 0.00 a 0.00 52.50 98.00 153.50 598.50 685.50 684.00 339.50 148.50 0.00 0.00 2760.00
1969 0.00 a 0.00 0.00 74.50 350.00 373.50 729.50 662.00 385.50 95.00 10.00 0.00 2680.00
1970 0.00 z 0.00 a 0.00 102.50 377.50 634.50 717.00 677.50 406.00 127.00 0.00 0.00 3042.00
1971 0.00 0.00 3.00 0.00 z 248.50 685.50 596.50 632.50 385.50 198.00 1.50 0.00 2751.00
1972 0.00 0.00 0.00 36.50 338.50 564.50 0.00 z 621.50 337.00 95.50 0.00 0.00 1993.50
1973 0.00 0.00 10.00 66.00 260.00 606.50 695.00 714.00 323.00 229.00 5.00 0.00 2908.50
1974 0.00 0.00 2.00 113.00 236.50 528.00 837.00 526.50 279.50 147.50 3.50 0.00 2673.50
1975 0.00 0.00 a 0.00 17.50 401.50 524.00 765.50 660.00 229.00 163.50 24.50 0.00 2785.50
1976 0.00 b 0.00 14.00 107.50 258.50 0.00 z 726.00 688.00 394.00 115.50 0.00 0.00 a 2303.50
1977 0.00 0.00 3.00 158.00 398.00 497.00 670.50 0.00 z 321.67 c 37.00 7.50 0.00 2092.67
1978 0.00 0.00 15.00 12.50 281.00 506.50 0.00 z 566.00 485.00 99.50 25.00 0.00 1990.50
1979 0.00 0.00 0.00 58.00 246.00 566.00 680.50 562.50 409.50 74.00 0.00 0.00 a 2596.50
1980 0.00 0.00 0.00 z 120.50 327.00 606.00 755.00 632.50 409.50 84.00 5.00 0.00 a 2939.50
1981 0.00 b 0.00 1.60 b 166.03 a 231.50 538.45 a 671.50 537.00 357.00 54.00 10.00 0.00 2567.09
1982 0.00 0.00 0.00 40.00 268.50 366.00 676.00 530.50 273.50 62.00 0.00 0.00 d 2216.50
1983 0.00 0.00 5.50 13.00 112.50 459.00 771.00 761.00 360.00 57.50 4.50 0.00 i 2544.00
1984 0.00 0.00 0.00 13.50 171.50 490.00 581.50 614.50 244.04 d 124.00 a 0.00 b 0.00 b 2239.04
1985 0.00 g 0.00 h 2.00 139.50 332.50 388.00 589.00 419.50 293.57 b 18.00 0.00 a 0.00 2182.07
1986 0.00 0.00 20.00 55.00 236.50 550.50 679.00 446.50 283.50 58.00 0.00 0.00 2329.00
1987 0.00 0.00 4.00 154.50 413.00 614.50 716.50 341.50 n 306.00 29.00 8.50 0.00 2246.00
1988 0.00 0.00 0.50 39.50 431.00 682.50 704.00 662.00 339.00 35.50 0.00 0.00 2894.00
1989 0.00 0.00 11.00 95.50 268.50 491.00 719.00 593.50 307.00 137.00 0.00 0.00 2622.50
1990 0.00 0.00 3.50 122.00 170.00 546.50 599.00 569.50 426.00 58.50 15.50 0.00 2510.50
1991 0.00 0.00 0.50 85.50 373.00 618.00 616.50 586.00 320.00 88.50 0.00 0.00 2688.00
1992 0.00 0.00 0.00 22.00 278.50 436.50 393.00 410.50 245.50 110.00 0.00 0.00 1896.00
1993 0.00 0.00 0.00 9.00 169.00 363.00 574.00 570.50 151.00 74.50 0.00 0.00 1911.00
1994 0.00 0.00 2.00 69.50 353.00 543.00 513.50 478.00 362.50 79.50 2.50 0.00 2403.50
1995 0.00 0.00 0.50 0.50 133.50 543.50 633.50 676.50 251.50 71.00 0.00 0.00 2310.50
1996 0.00 0.00 0.00 13.00 150.00 544.00 547.50 538.50 238.50 104.00 0.00 0.00 2135.50
1997 0.00 0.00 0.00 14.50 110.00 569.00 642.50 535.50 373.00 183.00 0.00 0.00 2427.50
1998 0.00 0.00 a 14.00 49.00 413.00 403.50 633.50 608.00 477.50 69.00 1.00 0.50 2669.00
1999 0.00 0.00 6.50 32.50 292.50 478.00 721.00 552.83 a 288.00 76.50 19.14 a 0.00 2466.97
2000 0.00 j 0.00 29.50 49.50 320.50 448.50 652.50 625.50 360.50 144.00 9.50 0.00 2640.00
2001 0.00 0.00 0.00 77.50 273.00 513.00 709.50 617.50 273.21 b 81.00 61.00 0.00 2605.71
2002 0.00 0.00 0.00 92.50 175.50 628.00 768.50 581.50 374.50 26.50 x 0.00 0.00 2620.50
2003 0.00 0.00 14.50 100.50 192.00 464.50 638.00 668.50 285.50 155.00 0.00 0.00 2518.50
2004 0.00 0.00 11.00 71.50 226.00 371.00 454.00 429.00 437.00 90.50 4.50 0.00 l 2094.50
2005 0.00 0.00 0.00 z 102.50 227.00 587.50 683.00 559.50 449.00 142.50 11.00 0.00 2762.00
2006 0.00 0.00 0.00 93.00 277.50 302.00 n 578.00 g 468.50 f 216.50 70.50 y 0.00 z 0.00 z 587.00
2007 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
2008 0.00 0.00 e 0.00 24.50 177.00 480.50 658.00 552.50 316.50 89.50 34.00 0.00 b 2332.50
2009 0.00 0.00 1.00 44.50 0.00 z 0.00 z 0.00 z 507.50 396.50 5.00 5.00 0.00 b 959.50
2010 0.00 f 0.00 b 11.92 e 132.50 294.50 539.00 682.50 723.50 288.50 124.00 11.00 0.00 a 2807.42
2011 0.00 0.00 0.00 a 19.14 a 256.50 511.15 d 803.50 596.00 259.14 a 168.00 0.00 a 0.00 2613.43
2012 0.00 a 0.00 97.98 c 113.00 378.50 593.04 b 862.83 a 595.00 326.79 b 57.00 3.00 0.00 a 3027.14
2013 0.00 a 0.00 0.00 b 0.00 z 0.00 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 0.02 0.00 8.04 72.12 267.92 511.53 671.01 607.58 341.69 115.55 5.55 0.03 2587.63
S.D. 0.20 0.00 16.57 46.94 91.13 85.91 92.69 93.81 81.33 62.84 9.17 0.26 319.95
SKEW 9.64 0.00 3.22 0.39 0.13 0.04 0.22 0.20 0.22 1.09 3.06 9.25 -0.08
MAX 2.00 0.00 97.98 206.00 455.50 710.50 950.50 856.50 559.50 335.00 61.00 2.50 3322.00
MIN 0.00 0.00 0.00 0.50 78.50 347.50 393.00 410.50 151.00 5.00 0.00 0.00 1896.00
NO YRS 96 100 98 99 101 99 97 99 102 99 101 98 76