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 x 0.00 a 0.00 1.00 137.50 574.00 634.00 502.00 309.50 105.00 6.00 0.00 2269.00
1894 0.00 0.00 6.00 107.00 233.50 608.00 694.50 577.00 408.50 56.50 0.00 0.00 2691.00
1895 0.00 0.00 0.00 76.00 333.00 553.50 550.00 560.50 479.00 9.00 l 14.50 0.00 c 2566.50
1896 0.00 0.00 0.00 160.00 422.50 525.00 603.47 a 587.50 189.50 39.50 0.00 0.00 2527.47
1897 0.00 0.00 0.00 54.00 157.00 407.59 a 713.00 444.00 453.00 132.55 b 0.00 a 0.00 a 2361.14
1898 0.00 a 0.00 0.00 17.59 a 219.67 b 511.80 e 656.00 514.00 356.00 65.62 a 6.72 a 0.00 c 2347.40
1899 0.00 d 0.00 0.00 c 133.97 a 218.55 a 486.00 601.40 a 613.80 a 230.00 137.84 c 4.20 e 0.00 2425.75
1900 0.00 0.00 d 0.00 86.79 b 339.89 c 461.90 a 551.28 a 705.25 e 306.50 219.50 0.00 h 0.00 j 2671.11
1901 0.00 l 0.00 u 0.00 u 104.50 h 313.50 516.21 a 768.05 b 571.95 a 224.50 g 107.31 e 0.00 f 0.00 d 2277.02
1902 0.00 g 0.00 c 1.50 38.00 269.70 a 342.86 b 635.50 508.73 c 215.69 a 41.33 a 12.50 f 0.00 2053.31
1903 0.00 0.00 11.50 28.33 c 256.50 236.00 h 570.50 397.00 285.00 b 39.00 g 5.17 a 0.00 1554.01
1904 0.00 a 0.00 0.00 f 26.38 a 222.34 b 423.50 517.50 467.07 a 363.50 98.50 i 17.59 a 0.00 2037.88
1905 0.00 0.00 b 19.00 33.33 c 90.50 l 403.45 a 539.00 534.48 b 351.11 c 115.98 b 0.00 0.00 1996.36
1906 0.00 b 0.00 0.00 d 63.60 e 214.86 b 0.00 z 545.82 c 630.00 407.59 a 84.45 b 0.00 0.00 b 1946.32
1907 0.00 a 0.00 0.00 a 10.50 79.50 212.00 k 401.50 j 0.00 z 0.00 z 40.00 g 0.00 a 0.00 90.00
1908 0.00 0.00 0.00 69.50 238.04 c 462.12 d 573.00 501.50 475.38 d 131.75 a 0.58 d 0.00 m 2451.86
1909 0.00 w 0.00 a 0.00 a 0.00 a 194.02 b 0.00 z 0.00 z 654.58 e 233.65 d 68.00 10.50 i 0.00 c 1150.25
1910 0.00 0.00 b 76.00 f 85.50 44.50 i 566.79 b 533.50 f 281.50 n 243.33 c 116.00 f 0.00 e 0.00 895.62
1911 0.00 0.00 1.00 q 66.11 c 397.46 c 651.11 c 620.53 b 501.34 b 325.38 d 3.00 y 0.00 z 0.00 z 2561.95
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 61.00 p 111.27 c 3.50 0.00 114.77
1913 0.00 0.00 0.00 105.00 198.00 573.50 624.65 a 614.32 a 370.50 114.50 3.50 0.00 2603.97
1914 0.00 c 0.00 a 0.00 50.50 303.00 472.50 738.50 565.50 325.50 197.50 6.00 0.00 2659.00
1915 0.00 0.00 0.00 238.00 171.50 166.00 t 546.67 e 426.00 372.50 65.50 4.50 0.00 b 1824.67
1916 0.00 a 0.00 0.00 26.00 232.00 353.00 869.00 615.83 e 312.00 101.50 6.00 0.00 2515.33
1917 0.00 0.00 a 0.00 z 26.38 a 121.93 a 359.00 657.00 545.50 258.50 16.00 0.00 0.00 1984.31
1918 0.00 0.00 a 12.92 a 11.50 343.50 490.50 581.50 633.00 145.00 97.50 10.86 a 0.00 2326.28
1919 0.00 0.00 0.00 38.50 193.50 635.50 722.50 551.50 410.00 106.50 2.00 0.00 2660.00
1920 0.00 0.00 10.50 21.50 220.50 549.00 605.00 562.50 414.00 226.00 0.00 0.00 2609.00
1921 0.00 0.00 22.00 130.00 384.50 676.50 866.50 628.00 448.00 67.50 0.00 0.00 3223.00
1922 0.00 0.00 0.00 29.50 411.50 548.50 582.50 629.50 420.50 133.00 2.00 0.00 2757.00
1923 0.00 0.00 0.00 55.50 262.00 645.50 730.50 548.50 347.50 90.50 0.00 z 0.00 2680.00
1924 0.00 0.00 0.00 13.00 71.00 380.50 579.50 525.00 193.00 154.00 11.00 0.00 1927.00
1925 0.00 0.00 0.00 z 111.00 173.50 540.00 603.50 611.50 391.00 14.00 0.00 0.00 2444.50
1926 0.00 0.00 0.00 61.50 312.50 403.97 a 642.50 586.50 276.00 69.75 a 0.00 0.00 2352.72
1927 0.00 0.00 a 9.50 43.50 141.00 422.50 626.00 468.62 a 418.50 99.20 a 2.00 0.00 a 2230.82
1928 0.00 0.00 a 8.00 27.50 329.50 380.89 b 675.50 637.00 241.00 141.50 0.00 0.00 2440.89
1929 0.00 0.00 0.00 73.50 211.00 487.50 732.50 597.50 365.69 a 69.50 0.00 0.00 2537.19
1930 0.00 1.50 2.00 100.50 297.00 561.00 741.00 667.50 409.50 140.50 28.00 0.00 2948.50
1931 0.00 0.00 0.00 117.00 239.22 a 667.76 a 808.14 b 619.00 564.50 151.38 a 10.00 0.00 c 3177.00
1932 0.00 b 0.00 e 0.00 30.00 c 256.00 607.50 718.50 664.00 322.24 a 61.50 0.00 0.00 a 2659.74
1933 0.00 0.00 b 0.00 b 28.50 297.00 758.33 c 763.63 a 613.00 458.00 56.12 b 14.46 b 0.00 a 2989.05
1934 0.00 a 0.00 a 0.00 a 45.00 471.20 a 669.31 a 759.00 562.00 328.97 a 145.70 a 5.56 c 0.00 b 2986.73
1935 0.00 a 0.00 b 0.00 49.00 176.50 379.66 a 845.50 639.50 329.00 97.50 0.00 a 0.00 a 2516.66
1936 0.00 b 0.00 a 0.00 b 20.00 430.90 a 462.00 843.50 698.50 469.00 70.50 0.00 a 0.00 a 2994.40
1937 0.00 c 0.00 0.00 16.50 293.00 513.62 a 767.50 830.00 396.00 53.50 0.00 a 0.00 2870.12
1938 0.00 a 0.00 20.67 a 108.00 232.50 488.50 654.00 727.00 331.07 b 175.00 50.50 0.00 b 2787.24
1939 0.00 0.00 a 19.63 a 86.00 387.00 542.50 735.50 639.00 464.50 105.00 0.00 0.00 a 2979.13
1940 0.00 0.00 a 0.00 a 17.78 c 202.50 506.00 713.50 548.00 417.32 b 109.00 1.55 a 0.00 2515.65
1941 0.00 0.00 0.00 b 146.25 b 387.00 576.50 702.67 a 637.00 456.00 59.50 15.00 0.00 a 2979.92
1942 0.00 0.00 0.00 a 185.00 249.50 516.21 a 656.17 a 598.00 331.00 92.50 0.00 0.00 2628.37
1943 0.00 0.00 21.50 33.00 216.00 642.00 759.00 684.00 237.50 123.00 0.00 0.00 2716.00
1944 0.00 0.00 0.00 8.50 412.50 600.50 686.50 689.50 376.03 a 70.50 33.62 a 0.00 a 2877.66
1945 0.00 0.00 a 40.00 58.39 b 150.50 387.50 584.50 628.00 350.00 84.50 0.00 a 0.00 z 2283.39
1946 0.00 c 0.00 b 31.00 76.61 b 183.00 491.00 680.50 563.50 325.00 146.50 0.00 0.00 b 2497.11
1947 0.00 b 0.00 1.50 18.00 111.50 419.50 674.00 858.00 442.00 275.00 0.00 0.00 2799.50
1948 0.00 0.00 0.50 107.59 a 254.00 515.00 709.00 663.00 470.50 58.50 9.50 0.00 2787.59
1949 0.00 a 0.00 0.00 92.88 d 328.50 650.00 728.00 660.00 217.00 193.00 0.50 0.00 2869.88
1950 0.00 a 0.00 0.00 4.00 242.00 523.39 b 553.72 b 415.50 268.00 169.00 4.00 0.00 2179.62
1951 0.00 a 0.00 0.00 a 41.00 277.00 357.00 563.50 435.50 182.00 67.50 0.00 2.00 1925.50
1952 0.00 0.00 0.00 127.50 169.50 519.00 666.50 514.50 291.43 b 7.50 0.00 0.00 2295.93
1953 0.00 0.00 0.00 14.00 221.00 517.00 610.50 577.63 a 284.50 175.00 17.50 0.00 2417.13
1954 0.00 0.00 0.00 38.00 136.00 528.50 605.50 497.50 276.50 58.00 3.50 0.00 2143.50
1955 0.00 a 0.00 0.00 95.50 329.00 454.50 799.00 731.00 347.00 116.00 0.00 0.00 2872.00
1956 0.00 0.00 0.00 2.07 a 212.50 558.00 521.00 569.50 234.00 179.50 34.50 0.00 2311.07
1957 0.00 0.00 0.00 132.50 186.00 a 488.50 684.50 564.50 274.00 40.50 0.00 0.00 2370.50
1958 0.00 0.00 0.00 53.50 223.50 364.14 a 568.50 608.50 329.00 115.00 8.50 0.00 2270.64
1959 0.00 0.00 0.00 25.86 a 367.00 518.50 598.50 707.50 370.00 35.50 0.00 0.00 2622.86
1960 0.00 0.00 0.00 97.50 221.00 377.00 571.00 610.00 365.69 a 94.00 1.50 1.00 2338.69
1961 0.00 0.00 4.00 9.50 177.50 475.00 603.50 588.50 352.50 138.50 6.00 0.00 2355.00
1962 0.00 0.00 0.00 67.50 371.00 449.50 506.50 548.00 225.50 155.50 0.00 3.50 2327.00
1963 0.00 0.00 2.50 80.50 183.50 562.00 660.50 505.50 301.50 298.50 2.50 0.00 2597.00
1964 0.00 0.00 0.00 87.50 359.00 491.50 687.00 482.00 283.00 79.00 50.00 0.00 2519.00
1965 0.00 0.00 0.00 13.00 328.50 433.50 555.00 510.00 213.50 98.00 3.00 0.00 2154.50
1966 0.00 0.00 8.00 7.00 152.00 509.50 698.50 491.50 275.50 87.50 0.00 0.00 2229.50
1967 0.00 0.00 17.50 37.50 122.00 482.00 544.00 433.50 271.50 92.00 1.50 0.00 2001.50
1968 0.00 0.00 25.50 51.00 132.00 463.00 597.00 584.50 315.00 157.50 3.00 0.00 2328.50
1969 0.00 0.00 0.00 59.50 252.00 260.00 608.50 642.50 288.00 103.50 0.00 0.00 2214.00
1970 0.00 0.00 0.00 114.00 265.00 518.00 670.00 586.00 328.00 110.50 0.00 0.00 2591.50
1971 0.00 0.00 0.00 53.00 146.00 594.00 524.50 478.50 360.50 192.00 8.00 0.00 2356.50
1972 0.00 0.00 0.00 26.00 344.00 415.50 567.00 552.50 268.50 63.50 0.00 0.00 2237.00
1973 0.00 0.00 0.00 42.00 109.00 516.50 658.50 615.50 308.00 198.00 0.00 0.00 2447.50
1974 0.00 0.00 0.00 96.00 152.50 368.50 658.50 527.00 197.50 87.50 11.00 0.00 2098.50
1975 0.00 0.00 0.00 8.00 316.00 463.50 644.00 569.00 166.00 125.00 37.00 0.00 k 2328.50
1976 0.00 0.00 7.00 84.50 191.50 548.00 662.00 547.50 264.00 94.50 0.00 0.00 2399.00
1977 0.00 0.00 8.78 a 181.50 467.50 427.00 711.50 473.50 308.50 21.50 17.50 0.00 2617.28
1978 0.00 0.00 0.00 21.00 183.02 e 186.50 t 551.50 590.00 405.50 52.00 1.15 d 0.00 a 1804.17
1979 0.00 d 0.00 0.00 52.50 169.47 a 443.00 627.00 515.50 347.00 52.00 1.50 0.00 2207.97
1980 0.00 0.00 0.00 85.50 320.50 441.72 a 676.00 603.50 293.00 45.00 0.00 0.00 2465.22
1981 0.00 0.00 11.50 48.10 a 210.50 480.00 611.50 578.00 248.50 35.50 12.41 a 0.00 2236.02
1982 0.00 0.00 0.00 38.50 369.50 307.00 646.00 511.00 243.50 70.50 3.50 1.00 2190.50
1983 0.00 0.00 1.00 30.50 85.00 479.50 745.50 708.50 348.50 85.00 5.50 0.00 2489.00
1984 0.00 0.00 0.00 28.00 156.00 531.00 587.00 634.50 262.00 114.50 0.50 0.00 2313.50
1985 0.00 0.00 3.50 157.00 322.50 366.00 594.00 491.50 324.00 39.00 0.00 0.00 2297.50
1986 0.00 a 0.00 27.00 109.00 297.50 481.00 659.00 434.00 293.00 65.00 0.00 0.00 2365.50
1987 0.00 0.00 7.00 113.50 314.00 570.00 714.50 546.00 319.50 30.00 11.00 0.00 2625.50
1988 0.00 a 0.00 0.00 36.00 355.00 577.50 735.50 697.00 333.50 50.50 0.00 0.00 2785.00
1989 0.00 0.00 18.50 27.00 239.50 418.00 664.00 574.50 286.50 132.50 0.00 0.00 2360.50
1990 0.00 0.00 21.00 134.50 139.00 477.00 608.50 570.00 388.50 45.00 37.00 0.00 2420.50
1991 0.00 0.00 12.00 105.50 387.00 594.00 599.50 607.00 269.50 70.00 0.00 0.00 2644.50
1992 0.00 0.00 0.00 30.00 271.00 383.00 453.00 453.50 239.50 92.00 0.00 0.00 1922.00
1993 0.00 0.00 0.00 21.00 222.00 377.00 580.00 581.00 134.50 54.00 0.00 0.00 1969.50
1994 0.00 0.00 3.00 51.00 285.00 568.00 566.50 486.00 371.50 85.00 1.50 0.00 2417.50
1995 0.00 0.00 7.00 0.00 182.50 613.00 646.00 696.50 244.50 65.50 0.00 0.00 2455.00
1996 0.00 0.00 0.00 29.00 132.50 458.50 510.50 556.50 288.50 66.50 0.00 0.00 2042.00
1997 0.00 0.00 0.50 34.00 68.50 514.50 569.00 439.00 308.50 125.50 3.50 0.00 2063.00
1998 0.00 0.00 30.00 45.00 377.00 430.50 616.50 597.50 408.50 65.00 8.00 2.00 2580.00
1999 0.00 0.00 5.00 51.00 282.50 487.50 708.00 512.50 249.00 34.50 23.00 0.00 2353.00
2000 0.00 0.00 17.00 31.00 264.00 405.50 567.50 568.50 262.50 122.00 17.50 0.00 2255.50
2001 0.00 0.00 0.00 76.00 246.50 446.00 632.50 635.50 224.50 43.00 23.00 5.50 2332.50
2002 0.00 0.00 0.00 72.50 125.50 489.00 686.00 548.50 388.00 51.00 0.00 0.00 2360.50
2003 0.00 0.00 7.50 45.00 185.50 419.00 590.00 656.00 324.50 84.00 0.00 0.00 2311.50
2004 0.00 0.00 4.00 58.00 149.00 367.50 558.50 402.50 426.00 51.00 1.00 0.00 2017.50
2005 0.00 0.00 9.50 75.50 144.50 616.50 678.50 605.00 398.00 122.50 0.00 0.00 2650.00
2006 0.00 0.00 2.00 78.00 251.00 481.50 696.00 537.00 237.00 47.00 6.50 0.00 2336.00
2007 0.00 0.00 32.50 76.00 312.50 538.00 628.00 591.50 348.50 190.00 0.00 0.00 2717.00
2008 0.00 0.00 0.00 32.50 95.50 434.00 590.00 522.00 323.50 57.50 27.50 0.00 2082.50
2009 0.00 0.00 0.00 28.00 203.00 430.50 426.50 477.50 368.00 5.50 3.50 0.00 1942.50
2010 0.00 0.00 4.00 88.50 321.00 464.50 672.00 657.50 208.00 88.00 2.50 0.00 2506.00
2011 0.00 0.00 0.00 a 10.50 184.50 443.00 714.00 587.00 219.00 120.50 0.00 a 0.00 2278.50
2012 0.00 0.00 139.00 28.00 304.00 509.00 781.00 557.50 269.00 37.50 h 0.00 z 0.00 z 2587.50
Period of Record Statistics
MEAN 0.00 0.01 5.96 59.84 245.41 491.96 645.48 575.23 321.28 97.93 5.96 0.13 2463.81
S.D. 0.00 0.14 15.27 44.85 92.15 88.71 84.60 83.17 81.34 54.10 10.39 0.67 289.03
SKEW 0.00 10.72 6.22 1.15 0.29 0.21 0.31 0.35 0.21 1.03 2.44 6.16 0.33
MAX 0.00 1.50 139.00 238.00 471.20 758.33 869.00 858.00 564.50 298.50 50.50 5.50 3223.00
MIN 0.00 0.00 0.00 0.00 68.50 260.00 426.50 397.00 134.50 5.50 0.00 0.00 1922.00
NO YRS 115 118 113 118 117 113 116 117 117 113 113 114 97