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 p 0.00 0.00 g 2.59 a 91.00 h 514.14 a 631.00 479.50 240.00 62.50 0.00 0.00 1929.72
1894 0.00 0.00 6.31 d 63.62 a 132.78 a 535.50 617.00 454.15 a 351.00 28.93 a 0.00 0.00 a 2189.30
1895 0.00 c 0.00 f 0.00 21.50 266.60 a 466.00 467.00 493.00 394.50 15.50 a 1.55 a 0.00 2125.65
1896 0.00 0.00 0.00 99.50 343.50 470.00 588.50 565.00 179.00 22.14 c 0.00 0.00 2267.64
1897 0.00 a 0.00 b 0.00 25.18 b 114.50 339.50 678.38 a 455.50 422.22 c 114.18 a 0.00 n 0.00 2149.47
1898 0.00 0.00 0.00 c 10.50 193.75 e 458.28 a 610.00 499.10 a 388.45 a 108.50 d 6.21 a 0.00 2274.78
1899 0.00 0.00 e 0.00 g 93.21 b 189.50 474.50 618.50 616.50 253.50 137.50 4.04 d 0.00 e 2387.25
1900 0.00 0.00 0.00 66.50 235.50 416.00 583.46 c 752.00 378.50 242.50 6.50 0.00 b 2680.96
1901 0.00 0.00 a 0.00 72.00 162.50 484.00 777.00 653.50 286.73 d 109.53 a 0.00 0.00 b 2545.26
1902 0.00 b 0.00 a 2.30 d 34.62 d 228.33 e 362.68 b 637.71 c 481.69 e 254.50 39.04 d 30.50 i 0.00 l 2040.86
1903 0.00 m 0.00 z 7.48 b 15.00 c 215.40 b 368.50 612.50 422.63 a 289.00 44.50 9.50 0.00 1984.51
1904 0.00 a 0.00 b 0.00 16.50 203.50 403.00 513.64 b 439.00 280.50 59.50 1.00 0.00 1916.64
1905 0.00 0.00 8.50 16.00 112.50 407.00 535.00 550.00 372.00 126.00 0.00 0.00 2127.00
1906 0.00 b 0.00 0.00 26.00 194.00 438.50 573.00 623.00 451.00 85.00 0.00 0.00 a 2390.50
1907 0.00 e 0.00 z 1.00 0.50 53.50 422.50 587.97 a 483.50 294.31 a 57.35 a 0.00 0.00 1900.63
1908 0.00 0.00 0.00 35.00 243.00 435.50 595.50 551.50 458.50 131.00 1.50 0.00 l 2451.50
1909 0.00 b 0.00 0.00 0.00 a 156.55 a 476.50 605.50 635.00 278.00 59.00 18.50 0.00 2229.05
1910 0.00 a 0.00 68.50 33.50 95.00 511.50 654.50 557.45 c 259.50 135.50 0.00 b 0.00 2315.45
1911 0.00 0.00 b 0.00 43.00 324.00 571.00 608.00 494.93 b 292.24 a 50.00 0.00 0.00 2383.17
1912 0.00 a 0.00 0.00 12.93 a 182.00 379.00 564.72 a 417.43 b 358.50 118.12 b 0.00 0.00 2032.70
1913 0.00 0.00 0.00 45.50 155.50 501.00 569.50 532.17 a 314.48 a 109.00 5.00 0.00 2232.15
1914 0.00 0.00 0.00 8.28 a 259.76 b 409.66 a 682.00 b 521.83 a 323.04 b 188.07 a 11.00 0.00 2403.63
1915 0.00 a 0.00 b 0.00 157.00 84.00 298.00 488.00 385.71 e 335.50 70.50 6.43 b 0.00 1825.14
1916 0.00 a 0.00 0.00 8.50 177.00 337.50 785.50 607.71 b 267.50 106.50 2.07 a 0.00 a 2292.28
1917 0.00 0.00 0.00 3.50 104.00 310.00 661.52 c 465.50 329.50 17.00 0.00 x 0.00 a 1891.02
1918 0.00 0.00 a 2.00 f 0.00 b 217.57 d 414.50 543.02 a 562.50 126.00 44.00 5.50 0.00 z 1913.09
1919 0.00 0.00 0.00 11.50 28.00 i 723.00 e 795.50 0.00 z 516.50 85.50 0.00 b 0.00 2132.00
1920 0.00 z 0.00 z 0.00 z 13.27 d 171.00 510.00 475.00 529.14 b 389.00 231.00 0.50 h 0.00 2318.41
1921 0.00 a 0.00 1.55 a 106.00 237.50 582.00 831.00 544.50 452.50 52.91 b 0.00 0.00 2807.96
1922 0.00 0.00 0.00 15.58 d 0.00 z 462.00 e 559.03 a 520.05 b 227.00 f 107.00 7.50 0.00 1671.16
1923 0.00 0.00 0.00 36.43 b 153.00 487.50 h 645.83 a 444.00 319.50 64.00 0.00 0.00 1662.76
1924 0.00 0.00 0.00 3.50 37.20 a 217.00 i 483.00 495.50 200.36 b 134.00 10.56 c 0.00 1364.11
1925 0.00 0.00 a 1.50 44.50 122.00 472.76 a 555.50 579.50 345.00 b 8.86 c 0.00 0.00 2129.62
1926 0.00 0.00 0.00 27.00 182.50 304.00 602.00 533.50 225.00 58.50 0.00 0.00 1932.50
1927 0.00 0.00 0.50 24.50 83.18 a 351.00 524.50 411.50 365.00 60.50 2.50 0.00 1823.18
1928 0.00 0.00 0.00 3.00 153.00 299.00 590.00 533.50 214.50 101.50 0.50 0.00 1895.00
1929 0.00 0.00 0.00 19.50 148.00 352.50 606.50 464.50 290.50 51.50 0.00 0.00 1933.00
1930 0.00 0.00 a 0.00 25.50 230.50 512.68 b 630.50 608.24 b 351.72 a 117.50 3.50 0.00 2480.14
1931 0.00 a 0.00 0.00 31.50 156.00 556.00 732.00 540.50 499.50 152.50 21.50 0.00 2689.50
1932 0.00 a 0.00 0.00 12.00 184.50 536.50 658.00 641.91 b 303.50 61.50 0.00 0.00 2397.91
1933 0.00 0.00 0.00 14.00 270.00 730.80 e 691.50 532.88 b 439.50 55.50 7.00 0.00 2741.18
1934 0.00 0.00 0.00 31.50 310.50 545.50 595.20 a 427.00 247.00 80.08 a 0.00 h 0.00 2236.78
1935 0.00 0.00 0.00 28.50 109.00 344.50 752.50 585.50 244.50 62.50 0.00 a 0.00 2127.00
1936 0.00 0.00 0.00 15.50 309.50 328.45 a 801.00 668.50 375.00 68.00 0.00 0.00 2565.95
1937 0.00 a 0.00 0.00 8.50 194.50 434.00 672.50 705.50 299.50 48.50 0.50 0.00 2363.50
1938 0.00 0.00 10.00 81.00 165.50 419.00 590.00 632.50 230.00 136.50 30.00 0.00 2294.50
1939 0.00 0.00 9.00 39.50 245.00 459.50 598.50 536.00 325.00 63.00 0.00 0.00 2275.50
1940 0.00 a 0.00 b 0.00 9.00 106.00 393.50 579.50 475.00 299.50 87.00 0.00 0.00 1949.50
1941 0.00 0.00 0.00 85.00 269.00 469.00 621.00 523.50 356.50 73.50 9.00 0.00 2406.50
1942 0.00 a 0.00 0.00 133.00 149.50 420.50 581.77 a 545.50 302.50 87.50 1.50 0.00 2221.77
1943 0.00 0.00 3.50 23.00 108.00 g 542.00 649.50 574.00 184.50 94.00 0.00 0.00 2070.50
1944 0.50 0.00 0.00 2.50 297.50 510.00 584.00 577.00 297.50 56.00 20.50 0.00 2345.50
1945 0.00 0.00 23.00 57.00 110.50 380.50 555.00 595.00 328.50 61.50 2.50 0.00 2113.50
1946 0.00 0.00 29.50 77.00 137.00 429.00 627.50 519.25 a 318.00 145.50 2.14 b 0.00 a 2284.89
1947 0.00 0.00 0.00 34.14 a 0.00 z 277.50 j 632.00 829.50 429.00 0.00 z 1.50 0.00 a 1926.14
1948 0.00 0.00 0.00 57.00 175.50 450.00 661.33 a 643.00 421.00 56.83 d 16.50 k 0.00 z 2464.67
1949 0.00 z 0.00 p 0.00 72.32 b 257.50 586.55 a 748.13 a 626.50 249.00 166.50 0.00 0.00 a 2706.51
1950 0.00 0.00 a 0.00 b 1.55 a 184.50 493.00 531.59 d 383.00 250.00 c 122.00 7.50 0.00 1973.14
1951 0.00 0.00 0.00 35.00 338.00 386.00 616.00 458.50 247.00 111.00 0.00 a 0.00 d 2191.50
1952 0.00 a 0.00 0.00 134.50 189.00 526.50 696.00 565.00 348.50 29.00 1.61 b 0.00 2490.11
1953 0.00 0.00 1.50 16.50 196.00 504.00 643.50 639.50 332.00 172.57 a 30.54 b 0.00 2536.10
1954 0.00 0.00 0.00 b 42.00 135.00 530.50 621.00 515.00 281.50 75.50 0.00 0.00 2200.50
1955 0.00 a 0.00 0.00 84.00 305.00 474.50 769.00 733.50 379.50 115.50 0.00 0.00 g 2861.00
1956 0.00 h 0.00 0.00 0.00 a 186.50 517.50 536.50 576.00 238.00 191.68 a 34.82 b 0.00 d 2281.00
1957 0.00 0.00 0.00 d 124.00 194.50 493.00 645.00 548.00 271.00 47.50 0.00 0.00 2323.00
1958 0.00 0.00 0.00 a 48.00 172.00 338.00 586.50 589.52 a 304.82 b 77.00 7.00 0.00 2122.84
1959 0.00 0.00 0.00 23.04 b 339.97 a 527.50 615.00 709.90 a 376.50 48.50 0.00 0.00 2640.40
1960 0.00 0.00 0.00 52.00 179.00 408.00 545.82 c 620.50 381.50 91.00 0.00 0.00 2277.82
1961 0.00 0.00 0.00 16.00 176.50 477.50 596.00 605.50 403.50 121.50 2.50 0.00 2399.00
1962 0.00 0.00 0.00 49.50 336.35 a 422.00 530.50 563.50 251.50 149.50 0.00 0.00 2302.85
1963 0.00 0.00 5.50 55.00 165.00 537.50 277.50 s 532.50 333.00 263.50 1.00 0.00 1893.00
1964 0.00 0.00 z 0.00 62.00 324.00 482.00 668.10 b 485.00 303.00 90.50 31.00 0.00 2445.60
1965 0.00 0.00 0.00 21.00 245.00 413.50 543.50 531.00 242.00 109.50 6.50 0.00 2112.00
1966 0.00 0.00 0.00 11.00 166.50 513.50 680.45 a 530.50 297.00 93.50 0.00 0.00 2292.45
1967 0.00 0.00 5.50 29.00 j 95.50 476.50 553.50 452.50 294.00 90.00 1.00 0.00 1968.50
1968 0.00 0.00 10.50 27.00 131.50 437.50 589.00 533.00 348.50 150.00 0.00 z 0.00 z 2227.00
1969 0.00 z 0.00 z 0.00 d 8.00 151.00 208.00 534.00 610.00 257.50 35.50 0.00 a 0.00 a 1804.00
1970 0.00 0.00 0.00 65.50 157.00 467.00 693.00 561.00 295.50 79.00 0.00 0.00 2318.00
1971 0.00 0.00 0.00 12.00 111.00 559.50 516.50 452.00 329.50 157.50 6.50 0.00 2144.50
1972 0.00 0.00 0.00 4.50 263.50 364.14 a 541.00 492.00 195.50 36.50 0.00 0.00 1897.14
1973 0.00 j 0.00 0.00 9.50 j 84.00 465.50 621.50 576.50 292.50 146.00 0.00 0.00 2186.00
1974 0.00 0.00 0.00 46.50 101.50 322.00 637.00 502.50 130.00 49.50 11.00 0.00 1800.00
1975 0.00 0.00 0.00 3.00 286.50 433.00 645.50 533.00 147.00 81.00 28.50 0.00 2157.50
1976 0.00 0.00 0.00 64.00 113.00 511.55 a 621.00 489.00 230.50 58.00 0.00 0.00 2087.05
1977 0.00 0.00 0.00 81.50 384.50 390.50 660.50 425.50 253.50 15.50 8.00 0.00 2219.50
1978 0.00 0.00 0.00 9.00 258.00 377.07 a 514.50 525.50 329.48 a 26.00 13.00 0.00 2052.55
1979 0.00 0.00 0.00 30.50 96.50 382.00 586.00 453.50 276.72 a 53.50 3.00 0.00 1881.72
1980 0.00 a 0.00 0.00 39.64 b 258.00 332.50 610.00 552.00 214.50 28.00 0.50 0.00 2035.14
1981 0.00 0.00 10.50 17.00 121.50 403.00 551.50 515.00 212.50 7.50 0.00 0.00 1838.50
1982 0.00 0.00 0.00 18.50 283.50 252.50 590.50 406.50 195.00 81.00 0.00 5.50 1833.00
1983 0.00 0.00 0.00 20.50 46.00 411.50 724.00 646.00 320.50 79.00 3.00 0.00 2250.50
1984 0.00 0.00 0.00 24.00 116.50 470.00 573.50 577.00 243.50 89.00 1.00 0.00 2094.50
1985 0.00 0.00 0.00 101.50 254.50 338.50 554.00 469.50 289.00 24.50 0.00 0.00 2031.50
1986 0.00 0.00 14.00 77.00 246.00 377.00 608.00 402.00 244.00 36.50 0.00 0.00 2004.50
1987 0.00 0.00 0.00 59.50 229.00 526.00 649.50 484.50 267.50 18.50 11.50 0.00 2246.00
1988 0.00 0.00 0.00 0.00 z 224.00 521.00 646.00 608.50 271.50 25.50 0.00 z 0.00 2296.50
1989 0.00 0.00 9.00 14.00 0.00 z 354.83 a 572.50 0.00 z 245.50 128.50 0.00 0.00 1324.33
1990 0.00 0.00 z 7.50 117.00 0.00 z 377.00 0.00 z 443.50 255.00 23.00 21.00 0.00 a 1244.00
1991 0.00 0.00 2.50 79.50 321.50 502.50 521.50 567.00 234.00 28.00 0.00 0.00 2256.50
1992 0.00 0.00 0.00 11.50 198.00 310.50 383.00 378.00 205.00 57.50 0.00 0.00 1543.50
1993 0.00 a 0.00 0.00 4.50 152.50 317.00 558.00 540.00 130.86 a 24.00 0.00 0.00 1726.86
1994 0.00 0.00 0.00 41.00 201.00 467.50 518.00 418.50 329.00 65.50 0.00 0.00 2040.50
1995 0.00 0.00 9.00 0.00 119.50 536.50 586.50 647.50 216.00 87.00 0.00 a 0.00 2202.00
1996 0.00 0.00 0.00 15.00 109.00 402.50 458.50 550.50 284.50 50.50 0.00 0.00 1870.50
1997 0.00 a 0.00 0.00 20.50 47.50 437.00 527.00 413.00 295.00 111.50 3.50 0.00 1855.00
1998 0.00 0.00 18.50 27.50 333.00 434.50 572.00 571.50 385.50 62.00 4.50 0.00 2409.00
1999 0.00 0.00 4.00 27.50 248.00 470.00 664.50 470.50 247.50 41.00 26.50 0.00 2199.50
2000 0.00 0.00 13.50 12.50 214.00 388.00 500.00 498.50 233.50 104.00 14.50 0.00 1978.50
2001 0.00 0.00 0.00 42.41 a 220.50 429.50 604.00 625.50 231.00 45.50 12.50 0.00 2210.91
2002 0.00 0.00 0.00 71.00 99.00 485.50 714.50 554.50 379.00 52.00 0.50 0.00 2356.00
2003 0.00 0.00 1.00 39.00 127.50 381.00 582.00 604.50 299.50 68.00 0.00 0.00 2102.50
2004 0.00 0.00 0.00 46.00 116.00 339.50 515.00 404.00 415.50 52.50 3.00 0.00 1891.50
2005 0.00 0.00 0.00 32.00 139.00 570.00 627.00 583.00 382.00 136.50 3.00 0.00 2472.50
2006 0.00 0.00 1.00 64.00 243.00 438.50 693.50 551.00 237.00 47.00 3.50 0.00 2278.50
2007 0.00 0.00 16.50 66.50 263.50 519.50 579.50 593.50 371.00 207.00 0.00 0.00 2617.00
2008 0.00 z 0.00 0.00 38.50 90.50 441.50 590.50 509.50 314.00 59.00 22.00 0.00 2065.50
2009 0.00 0.00 0.00 26.50 171.00 405.50 441.50 473.50 324.00 4.50 2.00 0.00 1848.50
2010 0.00 0.00 3.50 66.50 304.50 446.00 655.50 643.00 208.00 75.00 0.00 0.00 2402.00
2011 0.00 0.00 0.00 7.50 151.00 397.50 704.50 563.50 234.00 113.50 0.00 0.00 2171.50
2012 0.00 0.00 a 96.00 22.00 292.50 474.60 e 722.00 524.13 d 247.50 24.50 h 0.00 z 0.00 z 2378.73
Period of Record Statistics
MEAN 0.00 0.00 3.47 37.86 191.30 441.93 608.08 538.34 298.99 83.31 4.73 0.05 2196.21
S.D. 0.05 0.00 11.73 32.98 77.40 84.96 78.59 82.32 76.04 50.80 8.02 0.52 249.28
SKEW 10.44 0.00 5.95 1.27 0.29 0.29 0.32 0.46 0.31 1.06 2.13 10.49 0.06
MAX 0.50 0.00 96.00 157.00 384.50 730.80 831.00 829.50 516.50 263.50 34.82 5.50 2807.96
MIN 0.00 0.00 0.00 0.00 37.20 208.00 383.00 378.00 126.00 4.50 0.00 0.00 1543.50
NO YRS 112 112 116 117 113 117 118 118 119 118 111 113 87