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
1889 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
1890 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
1891 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
1892 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
1893 0.00 0.00 0.00 0.00 77.50 541.50 627.50 468.50 264.31 a 59.33 b 4.00 0.00 a 2042.64
1894 0.00 b 0.00 a 5.50 69.50 144.50 552.00 626.00 510.50 319.50 46.00 0.00 0.00 2273.50
1895 0.00 0.00 0.00 49.00 286.50 513.50 507.00 534.75 a 390.50 9.00 11.50 0.00 2301.75
1896 0.00 0.00 0.00 110.50 353.50 504.50 582.00 528.00 177.00 28.93 a 0.00 0.00 2284.43
1897 0.00 0.00 0.00 32.50 126.00 344.50 655.00 415.00 387.00 119.00 0.00 0.00 2079.00
1898 0.00 0.00 a 0.00 8.00 152.50 508.50 638.00 509.43 a 331.50 48.05 a 2.00 0.00 2197.98
1899 0.00 0.00 0.00 93.00 188.50 471.00 599.33 a 632.50 174.00 89.50 3.50 0.00 2251.33
1900 0.00 0.00 0.00 73.39 b 208.50 452.50 527.00 772.50 294.00 158.00 0.00 c 0.00 a 2485.89
1901 0.00 0.00 0.00 82.00 218.00 481.50 705.00 536.00 272.59 a 105.00 0.00 0.00 2400.09
1902 0.00 b 0.00 0.00 40.00 291.50 370.00 688.50 547.50 245.00 22.50 4.50 0.00 2209.50
1903 0.00 0.00 3.00 27.00 274.50 384.00 584.50 439.00 246.00 51.50 5.00 0.00 2014.50
1904 0.00 0.00 0.00 14.00 200.50 458.00 495.00 438.00 297.50 61.00 4.00 0.00 1968.00
1905 0.00 0.00 8.00 41.00 190.02 d 433.50 573.50 640.50 386.50 107.00 0.00 0.00 2380.02
1906 0.00 0.00 a 0.00 59.00 210.50 473.00 571.50 605.00 473.00 79.00 5.50 0.00 2476.50
1907 0.00 a 0.00 1.50 10.34 a 77.00 464.00 576.50 264.00 m 287.00 44.43 a 0.00 0.00 1460.78
1908 0.00 0.00 0.00 44.48 a 204.00 404.48 a 610.38 b 500.50 513.50 108.00 0.00 0.00 2385.34
1909 0.00 a 0.00 a 0.00 b 0.00 a 220.00 540.00 607.00 548.50 f 251.38 a 54.25 c 3.10 a 0.00 1675.73
1910 0.00 0.00 60.50 65.50 73.50 494.50 601.50 509.50 189.50 119.00 0.00 0.00 a 2113.50
1911 0.00 0.00 1.00 38.50 363.50 570.00 527.00 434.00 218.50 16.50 0.00 0.00 2169.00
1912 0.00 0.00 0.00 19.50 203.00 363.50 565.50 373.50 305.50 61.50 0.00 0.00 1892.00
1913 0.00 0.00 0.00 94.66 a 150.00 529.00 528.50 542.00 293.50 92.00 0.50 0.00 2230.16
1914 0.00 0.00 0.00 34.50 238.50 381.00 629.50 451.00 235.50 165.00 2.50 0.00 2137.50
1915 0.00 0.00 0.00 158.50 105.50 272.50 429.00 334.50 251.00 28.50 1.00 0.00 1580.50
1916 0.00 0.00 0.00 0.50 141.00 272.50 769.00 557.50 245.50 71.50 0.50 0.00 2058.00
1917 0.00 0.00 0.00 15.00 99.00 279.50 563.50 373.00 183.50 8.00 0.00 0.00 1521.50
1918 0.00 0.00 3.50 1.00 260.00 369.83 a 523.00 528.00 115.50 62.50 3.50 0.00 1866.83
1919 0.00 0.00 0.00 15.50 170.50 545.50 600.37 a 442.50 286.00 57.00 0.00 0.00 2117.37
1920 0.00 0.00 4.98 c 12.00 194.00 469.50 491.00 471.50 355.50 200.50 0.00 0.00 2198.98
1921 0.00 0.00 2.00 95.50 319.00 574.00 756.50 534.00 359.00 50.50 0.00 0.00 2690.50
1922 0.00 0.00 0.00 5.50 337.00 474.00 499.50 541.50 343.50 108.00 0.50 0.00 2309.50
1923 0.00 0.00 0.00 57.00 223.00 572.00 659.50 429.00 296.50 54.00 0.00 0.00 2291.00
1924 0.00 0.00 0.00 6.50 24.44 e 328.50 466.50 413.00 132.50 116.50 1.00 0.00 1488.94
1925 0.00 0.00 2.50 85.50 143.50 445.00 510.00 545.50 332.50 3.00 0.00 0.00 2067.50
1926 0.00 0.00 0.00 44.50 273.00 299.50 555.50 494.00 221.50 52.50 0.00 0.00 1940.50
1927 0.00 a 0.00 3.00 27.00 125.00 355.50 498.50 365.50 365.00 60.50 0.00 0.00 1800.00
1928 0.00 0.00 b 6.00 7.00 213.50 279.50 588.50 558.52 a 195.50 97.50 0.00 0.00 1946.02
1929 0.00 0.00 a 0.00 a 5.77 d 161.00 403.00 624.00 500.00 251.50 31.00 0.00 0.00 1976.27
1930 0.00 0.00 0.00 75.50 217.50 454.00 606.50 578.50 309.50 112.00 11.54 d 0.00 g 2365.04
1931 0.00 b 0.00 0.00 a 53.00 144.15 a 515.50 592.00 472.75 a 384.00 85.54 d 9.11 b 0.00 b 2256.04
1932 0.00 b 0.00 a 0.00 a 14.50 163.55 b 468.50 539.52 e 544.00 188.28 a 32.00 0.00 0.00 1950.35
1933 0.00 b 0.00 b 0.00 b 23.00 219.07 a 627.00 0.00 z 0.00 z 366.43 b 33.58 a 10.20 e 0.00 h 1279.28
1934 0.00 f 0.00 h 0.00 g 49.00 f 265.00 k 532.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 0.00 532.50
1935 0.00 0.00 a 0.00 b 0.00 z 88.35 a 279.00 704.50 508.29 b 222.93 a 38.50 0.00 a 0.00 1841.57
1936 0.00 a 0.00 0.00 8.00 299.15 a 343.00 739.72 b 594.00 344.50 46.00 0.00 0.00 2374.37
1937 0.00 0.00 0.00 1.07 b 196.69 b 360.00 607.08 a 660.30 a 281.50 33.07 a 0.00 0.00 2139.71
1938 0.00 0.00 6.00 61.55 a 173.60 a 346.50 524.00 551.00 186.50 72.50 31.50 0.00 1953.15
1939 0.00 0.00 8.00 42.00 299.50 389.00 585.50 513.00 318.50 64.00 0.00 0.00 2219.50
1940 0.00 0.00 0.00 13.97 a 126.00 373.39 b 584.50 448.00 313.00 67.00 0.00 0.00 1925.86
1941 0.00 0.00 a 0.00 110.69 a 306.79 b 451.50 579.50 503.50 307.50 31.50 7.00 0.00 2297.98
1942 0.00 0.00 0.00 110.50 116.52 b 359.00 486.50 451.50 212.68 b 67.00 0.00 0.00 1803.70
1943 0.00 0.00 0.00 13.50 136.00 465.50 603.43 b 523.50 132.50 59.00 0.00 0.00 1933.43
1944 0.00 0.00 0.00 5.00 306.50 459.00 496.50 403.50 f 217.00 26.00 12.00 0.00 1522.00
1945 0.00 a 0.00 21.00 37.00 75.50 276.00 452.50 465.50 251.00 32.00 0.00 0.00 1610.50
1946 0.00 0.00 17.50 51.00 116.50 361.00 533.50 431.50 209.50 66.50 0.00 0.00 1787.00
1947 0.00 0.00 0.00 17.50 77.00 323.50 548.50 732.50 345.00 231.00 0.00 0.00 2275.00
1948 0.00 0.00 0.00 76.00 163.50 382.76 a 585.79 b 569.76 b 373.00 32.00 8.89 c 0.00 2191.70
1949 0.00 a 0.00 0.00 a 46.55 a 233.53 a 527.00 630.50 550.00 164.00 99.50 1.00 0.00 2252.08
1950 0.00 0.00 0.00 0.00 140.00 378.10 a 460.50 0.00 z 238.50 119.50 0.00 0.00 1336.60
1951 0.00 0.00 0.00 35.17 a 271.00 296.38 a 519.52 b 405.50 153.00 57.00 0.00 0.00 1737.57
1952 0.00 0.00 0.00 128.00 156.50 453.62 a 589.00 457.50 238.00 6.41 b 0.00 a 0.00 2029.03
1953 0.00 0.00 0.00 d 9.50 195.00 456.00 522.00 538.88 a 239.50 183.50 12.00 0.00 2156.38
1954 0.00 0.00 0.00 c 29.50 108.00 481.00 556.50 456.00 197.14 b 29.00 0.00 0.00 1857.14
1955 0.00 0.00 a 0.00 b 48.00 202.02 a 376.00 669.50 625.17 a 274.00 103.69 b 0.00 0.00 a 2298.37
1956 0.00 0.00 0.00 0.00 171.00 490.50 454.50 493.50 183.50 125.00 23.50 0.00 1941.50
1957 0.00 0.00 0.00 95.00 148.00 399.50 614.00 472.00 187.00 25.00 0.00 0.00 1940.50
1958 0.00 0.00 0.00 44.00 151.00 262.50 468.50 461.00 242.50 78.00 2.00 0.00 1709.50
1959 0.00 0.00 0.00 6.50 267.50 428.50 525.00 599.50 284.50 13.00 0.00 0.00 2124.50
1960 0.00 0.00 0.00 61.00 197.00 307.50 507.00 553.00 293.00 64.50 0.00 0.00 1983.00
1961 0.00 0.00 0.50 5.50 136.00 415.00 534.00 538.50 269.00 90.00 1.00 0.00 1989.50
1962 0.00 0.00 0.00 56.00 304.00 384.50 466.00 484.00 172.00 115.50 0.00 1.50 1983.50
1963 0.00 0.00 2.00 46.00 148.50 465.50 604.00 457.50 282.00 220.50 0.00 0.00 2226.00
1964 0.00 0.00 0.00 39.50 277.50 429.00 645.50 438.50 226.00 57.00 19.00 0.00 2132.00
1965 0.00 0.00 0.00 15.00 262.50 361.00 478.50 435.50 132.50 63.00 3.50 0.00 1751.50
1966 0.00 0.00 1.50 2.00 112.00 440.50 646.50 438.50 236.00 51.50 0.00 0.00 1928.50
1967 0.00 0.00 1.50 12.50 90.50 420.00 474.50 386.50 231.00 67.00 0.00 0.00 1683.50
1968 0.00 0.00 3.50 38.00 109.50 392.50 543.00 515.00 248.00 112.50 1.00 0.00 1963.00
1969 0.00 0.00 0.00 29.00 208.50 190.50 528.00 564.50 256.50 74.50 0.00 0.00 1851.50
1970 0.00 0.00 0.00 85.50 222.50 471.50 598.50 515.50 263.50 71.00 0.00 0.00 2228.00
1971 0.00 0.00 0.00 18.00 92.00 499.00 439.00 411.00 271.50 127.00 0.00 0.00 1857.50
1972 0.00 0.00 0.00 15.50 284.00 334.00 473.50 481.50 214.00 32.00 0.00 0.00 1834.50
1973 0.00 0.00 0.00 29.50 84.50 446.00 573.00 559.00 233.50 136.00 0.00 0.00 2061.50
1974 0.00 0.00 0.00 56.00 109.00 277.50 605.50 464.50 106.50 43.50 7.00 0.00 1669.50
1975 0.00 0.00 0.00 0.00 266.00 368.50 600.50 473.50 119.50 81.50 13.50 0.00 1923.00
1976 0.00 0.00 0.00 50.50 135.00 472.50 581.00 492.50 202.50 75.00 0.00 0.00 2009.00
1977 0.00 0.00 5.00 125.00 405.00 357.50 598.50 351.00 224.50 4.50 3.50 0.00 2074.50
1978 0.00 0.00 0.00 13.00 231.50 358.00 486.50 501.50 325.50 12.92 a 7.50 0.00 1936.42
1979 0.00 0.00 a 0.00 30.50 90.50 359.50 565.50 431.50 242.50 24.50 h 0.00 0.00 1720.00
1980 0.00 0.00 0.00 50.50 266.00 357.00 584.50 506.00 193.00 26.00 0.00 0.00 1983.00
1981 0.00 0.00 4.00 13.00 136.50 386.50 529.50 507.00 183.50 14.00 4.00 0.00 b 1778.00
1982 0.00 0.00 0.00 13.00 307.00 226.50 594.00 438.00 182.00 39.50 1.50 0.00 1801.50
1983 0.00 0.00 0.00 13.00 62.50 403.00 676.50 633.50 294.00 57.50 0.00 0.00 2140.00
1984 0.00 0.00 0.00 23.00 124.50 453.00 515.00 580.00 186.00 87.00 0.00 0.00 1968.50
1985 0.00 0.00 0.00 a 110.00 264.50 291.00 508.00 430.50 259.50 10.50 0.00 0.00 1874.00
1986 0.00 0.00 8.00 76.50 247.50 383.00 559.50 366.50 216.00 23.00 0.00 0.00 1880.00
1987 0.00 0.00 0.00 z 85.50 250.50 480.00 640.50 481.00 0.00 z 4.50 6.50 0.00 1948.50
1988 0.00 0.00 0.00 15.50 297.00 512.00 680.00 623.50 234.00 28.50 0.00 0.00 2390.50
1989 0.00 0.00 5.50 17.00 207.50 351.00 597.50 507.00 242.50 90.00 0.00 0.00 2018.00
1990 0.00 0.00 6.00 109.50 110.50 411.50 536.50 497.00 290.50 16.50 9.50 0.00 1987.50
1991 0.00 0.00 8.50 77.00 341.50 549.00 526.00 557.00 200.50 15.00 0.00 0.00 2274.50
1992 0.00 0.00 0.00 19.50 220.00 341.00 362.00 385.50 171.00 53.50 0.00 0.00 1552.50
1993 0.00 0.00 0.00 10.00 138.50 293.50 504.00 517.00 70.00 20.50 0.00 0.00 1553.50
1994 0.00 0.00 0.00 27.00 210.00 472.00 492.00 410.00 326.50 51.00 0.00 0.00 1988.50
1995 0.00 0.00 2.00 0.00 125.00 559.00 573.00 637.00 212.50 52.50 0.00 0.00 2161.00
1996 0.00 0.00 0.00 9.50 128.50 416.00 457.50 526.50 250.50 44.00 0.00 0.00 1832.50
1997 0.00 0.00 0.00 16.00 66.50 476.00 519.00 406.50 274.00 101.50 0.00 0.00 1859.50
1998 0.00 0.00 13.00 44.00 348.00 383.00 582.00 551.00 376.00 31.50 1.50 0.00 2330.00
1999 0.00 0.00 4.50 41.50 250.50 442.00 658.00 457.50 208.00 12.50 10.00 0.00 2084.50
2000 0.00 a 0.00 14.50 28.50 235.50 354.50 537.50 522.00 238.50 90.50 11.00 0.00 2032.50
2001 0.00 0.00 0.00 42.50 206.50 407.50 578.00 597.00 211.00 24.50 7.50 0.00 2074.50
2002 0.00 0.00 0.00 61.50 99.00 468.00 687.50 498.50 315.00 32.00 0.00 0.00 2161.50
2003 0.00 0.00 3.50 35.00 147.50 389.50 550.00 617.50 301.00 68.50 0.00 0.00 2112.50
2004 0.00 0.00 0.00 39.00 118.50 326.00 525.00 335.00 384.50 38.00 0.00 0.00 1766.00
2005 0.00 0.00 4.00 68.00 153.00 569.00 642.00 532.00 380.50 99.50 0.00 0.00 2448.00
2006 0.00 0.00 0.00 66.50 217.50 462.00 712.00 537.00 191.00 40.50 2.00 0.00 2228.50
2007 0.00 0.00 21.50 66.00 279.00 493.50 587.00 533.50 301.50 150.00 0.00 0.00 2432.00
2008 0.00 0.00 0.00 34.50 90.50 374.50 549.00 482.50 289.50 42.00 20.00 0.00 1882.50
2009 0.00 0.00 0.00 22.00 175.15 a 375.00 379.50 420.00 347.50 1.50 0.50 0.00 1721.15
2010 0.00 0.00 3.50 69.50 255.00 393.00 611.50 596.50 141.00 63.50 2.00 0.00 2135.50
2011 0.00 a 0.00 0.00 a 8.00 171.00 395.00 661.50 506.00 199.00 114.00 0.00 0.00 2054.50
2012 0.00 b 0.00 107.00 25.00 270.00 451.55 a 712.50 514.00 243.00 21.50 i 0.00 z 0.00 z 2323.05
Period of Record Statistics
MEAN 0.00 0.00 3.17 40.37 191.58 415.71 568.78 502.50 256.90 65.45 2.63 0.01 2041.32
S.D. 0.00 0.00 11.75 33.82 79.12 84.93 75.68 78.19 76.17 45.78 5.26 0.14 233.80
SKEW 0.00 0.00 7.01 1.00 0.31 -0.05 0.13 0.42 0.41 1.20 2.84 10.68 -0.06
MAX 0.00 0.00 107.00 158.50 405.00 627.00 769.00 772.50 513.50 231.00 31.50 1.50 2690.50
MIN 0.00 0.00 0.00 0.00 24.44 190.50 362.00 334.50 70.00 1.50 0.00 0.00 1488.94
NO YRS 119 119 118 118 119 120 118 114 118 117 119 117 109