date! ,

Monthly Total Growing Degree Days

(a vali)

Base Temperature = 50 F

File last updated on Apr 4, 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 b 0.00 z 0.00 z 0.00 d 110.00 554.48 a 521.00 310.50 g 257.59 a 1.66 c 0.00 0.00 1444.73
1894 0.00 0.00 0.00 62.50 141.50 530.69 a 599.85 a 514.00 224.46 b 10.85 a 0.00 0.00 2083.85
1895 0.00 0.00 0.00 68.50 227.50 261.92 d 432.50 392.50 210.54 b 35.50 0.00 0.00 a 1628.96
1896 0.00 0.00 0.00 33.50 250.50 464.00 559.50 423.50 150.50 34.00 0.00 0.00 1915.50
1897 0.00 0.00 0.00 14.00 182.00 171.50 n 0.00 z 0.00 z 0.00 z 85.77 a 0.00 0.00 i 281.77
1898 0.00 b 0.00 0.00 11.50 134.50 304.20 e 496.50 424.50 228.00 20.50 0.00 b 0.00 k 1619.70
1899 0.00 0.00 0.00 d 35.00 0.00 z 0.00 z 541.50 472.50 183.50 26.00 0.00 a 0.00 1258.50
1900 0.00 a 0.00 0.00 143.00 268.84 b 478.50 532.00 626.50 182.50 40.00 f 0.00 0.00 2231.34
1901 0.00 0.00 0.00 63.00 306.00 373.50 591.50 465.00 176.54 d 58.68 c 0.00 0.00 2034.22
1902 0.00 0.00 0.00 8.50 251.50 296.50 556.00 373.50 104.50 11.00 0.00 0.00 g 1601.50
1903 0.00 c 0.00 0.00 22.00 221.50 348.00 405.00 h 366.00 122.07 a 23.00 3.50 0.00 1106.07
1904 0.00 0.00 0.00 21.00 176.18 a 337.00 421.50 350.00 179.50 55.28 a 0.00 0.00 f 1540.47
1905 0.00 0.00 2.14 b 17.50 133.00 291.50 482.50 536.62 b 313.85 d 74.50 0.00 0.00 a 1851.60
1906 0.00 a 0.00 0.00 66.00 135.50 395.50 490.50 489.00 384.50 69.50 0.00 0.00 2030.50
1907 0.00 0.00 0.00 0.00 39.00 384.00 518.50 463.50 156.96 b 14.50 0.00 0.00 1576.46
1908 0.00 0.00 0.00 67.00 123.48 a 453.50 592.50 440.72 a 403.50 58.12 c 0.00 0.00 2138.83
1909 0.00 0.00 0.00 0.00 185.00 466.00 568.50 580.22 a 251.50 85.00 1.55 a 0.00 2137.77
1910 0.00 a 0.00 a 74.00 f 76.03 a 78.02 a 538.45 a 594.00 459.00 176.50 105.40 a 0.00 0.00 a 2027.40
1911 0.00 0.00 0.00 80.50 279.00 533.50 474.00 419.00 166.00 43.50 0.00 0.00 1995.50
1912 0.00 0.00 0.00 28.50 204.50 396.00 517.00 379.50 209.50 40.50 0.00 0.00 1775.50
1913 0.00 0.00 0.00 100.50 146.00 501.50 492.50 608.00 316.50 23.00 0.00 0.00 2188.00
1914 0.00 0.00 0.00 12.00 227.50 383.50 661.00 403.00 306.00 169.00 2.50 0.00 2164.50
1915 0.00 0.00 0.00 90.00 132.00 241.50 407.00 443.50 214.50 23.00 0.00 0.00 1551.50
1916 0.00 0.00 0.00 5.00 117.50 0.00 z 727.50 484.00 205.00 3.50 0.00 0.00 1542.50
1917 0.00 0.00 0.00 0.00 102.50 292.50 582.50 448.50 206.00 0.00 z 0.00 0.00 1632.00
1918 0.00 z 0.00 5.00 28.50 142.50 356.50 458.00 537.50 101.50 54.50 0.00 0.00 1684.00
1919 0.00 0.00 0.00 19.00 247.00 513.00 606.50 497.50 286.50 26.00 0.00 0.00 2195.50
1920 0.00 0.00 0.00 0.00 169.50 402.50 554.38 a 573.00 322.50 116.00 0.00 0.00 2137.88
1921 0.00 0.00 0.00 15.50 251.50 556.50 662.50 497.50 252.50 30.00 0.00 0.00 2266.00
1922 0.00 0.00 a 0.00 19.50 258.00 431.00 498.50 608.00 319.50 87.50 0.00 0.00 2222.00
1923 0.00 0.00 0.00 35.50 231.50 539.50 685.00 400.50 284.50 66.65 a 0.00 0.00 2243.15
1924 0.00 0.00 0.00 6.50 44.00 317.50 433.00 411.00 146.50 69.50 0.00 0.00 1428.00
1925 0.00 0.00 0.00 55.50 166.50 366.00 490.00 565.50 267.50 0.00 0.00 0.00 1911.00
1926 0.00 0.00 2.50 50.50 326.00 291.50 553.50 472.50 143.00 10.00 0.00 0.00 1849.50
1927 0.00 a 0.00 a 0.00 22.00 63.00 378.00 503.00 409.50 320.50 23.50 0.00 0.00 a 1719.50
1928 0.00 0.00 0.00 15.50 251.00 280.50 558.00 457.50 190.00 29.50 0.00 0.00 1782.00
1929 0.00 0.00 0.00 5.50 128.50 380.00 592.00 548.00 165.50 56.50 0.00 0.00 1876.00
1930 0.00 0.00 0.00 39.00 154.50 443.50 670.50 646.50 254.00 44.00 0.00 0.00 2252.00
1931 0.00 0.00 0.00 59.00 182.50 535.50 660.00 542.00 361.00 62.00 4.00 0.00 2406.00
1932 0.00 b 0.00 0.00 33.00 247.50 586.00 642.50 609.67 a 246.50 27.00 0.00 0.00 2392.17
1933 0.00 0.00 0.00 29.00 227.33 a 633.00 675.50 605.00 353.50 13.50 0.00 0.00 2536.83
1934 0.00 0.00 a 0.00 a 31.50 393.00 437.50 654.00 514.50 155.17 a 95.50 0.00 0.00 2281.17
1935 0.00 a 0.00 0.00 a 7.50 117.00 359.00 757.43 a 486.00 187.24 a 33.50 0.00 0.00 a 1947.67
1936 0.00 0.00 0.00 1.55 a 356.50 a 430.00 902.10 a 605.53 a 334.00 42.50 0.00 0.00 2672.19
1937 0.00 0.00 0.00 1.50 217.50 403.50 609.50 674.00 224.50 39.00 0.00 0.00 2169.50
1938 0.00 0.00 0.00 a 36.50 118.00 405.00 a 609.00 632.00 324.50 114.00 2.50 0.00 2241.50
1939 0.00 0.00 0.00 40.00 341.00 387.00 692.50 633.43 a 294.00 21.18 a 0.00 0.00 2409.12
1940 0.00 0.00 0.00 20.00 168.00 370.00 642.50 502.00 356.00 82.00 0.00 0.00 2140.50
1941 0.00 0.00 0.00 65.50 293.00 474.00 667.50 535.00 260.50 33.00 0.00 0.00 2328.50
1942 0.00 0.00 0.00 91.50 149.50 381.21 a 532.00 516.00 225.50 137.00 0.00 0.00 2032.71
1943 0.00 0.00 0.00 31.50 104.50 373.50 680.00 560.00 185.00 103.00 0.00 0.00 2037.50
1944 0.00 a 0.00 0.00 a 16.50 349.78 a 438.62 a 618.00 538.88 a 212.59 a 62.50 0.00 0.00 2236.87
1945 0.00 0.00 14.00 3.00 50.00 354.00 552.50 541.98 a 189.50 40.50 0.00 a 0.00 1745.48
1946 0.00 0.00 23.00 71.00 175.00 430.86 a 676.00 513.00 185.50 40.00 0.00 0.00 2114.36
1947 0.00 0.00 a 0.00 25.50 85.50 348.00 645.50 635.00 239.00 130.00 0.00 0.00 2108.50
1948 0.00 a 0.00 0.00 45.00 210.50 385.50 613.80 a 595.00 366.00 43.00 0.00 a 0.00 a 2258.80
1949 0.00 0.00 0.00 b 81.21 a 197.88 a 434.50 582.28 a 645.00 190.00 48.00 0.00 a 0.00 2178.87
1950 0.00 0.00 0.00 0.00 123.00 398.00 519.50 424.00 262.50 43.40 a 0.00 0.00 a 1770.40
1951 0.00 0.00 a 0.00 19.50 270.50 308.28 a 555.50 437.50 204.64 b 54.00 0.00 a 0.00 1849.92
1952 0.00 a 0.00 0.00 178.00 201.00 357.00 f 607.50 507.50 349.50 23.00 0.00 0.00 1866.50
1953 0.00 a 0.00 0.00 a 4.00 218.55 a 445.50 593.50 673.50 239.50 192.50 0.50 0.00 b 2367.55
1954 0.00 0.00 0.00 17.50 134.50 426.00 623.00 485.00 214.00 47.50 0.00 a 0.00 1947.50
1955 0.00 0.00 a 0.00 100.00 311.50 428.50 705.00 664.00 255.50 79.00 0.00 0.00 2543.50
1956 0.00 0.00 0.00 0.00 151.00 611.00 509.50 542.50 e 150.50 111.00 0.00 0.00 2075.50
1957 0.00 0.00 0.00 a 72.00 189.50 321.50 717.00 524.50 161.50 62.00 0.00 0.00 2048.00
1958 0.00 0.00 0.00 27.00 269.00 283.00 511.50 552.00 287.50 46.50 0.00 0.00 1976.50
1959 0.00 0.00 0.00 18.50 178.00 500.50 638.00 642.00 278.00 14.50 0.00 0.00 2269.50
1960 0.00 0.00 0.00 18.00 249.50 405.00 638.00 632.50 314.50 77.50 0.00 0.00 2335.00
1961 0.00 0.00 2.50 8.50 202.50 570.50 606.50 700.50 200.00 79.50 0.00 0.00 2370.50
1962 0.00 0.00 0.00 21.00 170.50 474.00 537.00 611.50 174.00 111.08 a 0.00 0.00 2099.08
1963 0.00 0.00 15.00 32.50 178.00 587.50 719.00 612.50 368.50 247.50 0.00 0.00 2760.50
1964 0.00 0.00 0.00 41.00 320.50 414.50 711.00 482.00 223.50 48.50 6.50 0.00 2247.50
1965 0.00 0.00 0.00 16.03 a 183.00 451.00 571.00 0.00 z 0.00 z 40.50 0.50 0.00 1262.03
1966 0.00 0.00 0.00 7.50 153.50 494.00 658.50 493.50 281.00 28.00 0.00 0.00 2116.00
1967 0.00 0.00 c 10.00 1.00 159.00 373.50 551.50 520.00 321.00 39.50 0.00 0.00 1975.50
1968 0.00 0.00 0.00 39.00 144.00 383.50 546.50 431.00 226.00 26.00 0.00 0.00 1796.00
1969 0.00 0.00 0.00 36.00 0.00 z 245.50 567.00 692.00 290.00 19.00 0.00 0.00 1849.50
1970 0.00 0.00 0.00 4.50 157.50 581.00 686.00 581.00 300.00 62.50 0.00 0.00 2372.50
1971 0.00 0.00 0.00 28.00 160.00 517.50 476.00 573.00 278.50 57.50 0.00 0.00 2090.50
1972 0.00 0.00 0.00 20.50 348.50 515.50 506.50 613.50 219.50 47.50 0.00 0.00 2271.50
1973 0.00 0.00 0.00 37.50 230.50 0.00 z 581.50 718.00 242.00 130.00 0.00 0.00 1939.50
1974 0.00 0.00 0.00 38.00 134.50 492.50 733.00 446.00 179.50 45.00 0.00 0.00 2068.50
1975 0.00 b 0.00 z 0.00 z 0.00 z 240.50 461.50 702.00 532.00 193.00 105.50 23.50 0.00 2258.00
1976 0.00 0.00 0.00 34.00 306.00 562.00 641.50 652.50 322.50 66.00 0.00 0.00 2584.50
1977 0.00 0.00 0.00 132.00 546.50 482.00 619.50 346.00 186.00 23.50 3.00 0.00 2338.50
1978 0.00 0.00 a 0.00 28.00 300.50 413.00 557.50 593.50 401.00 37.00 9.00 0.00 2339.50
1979 0.00 0.00 0.00 4.00 0.00 z 0.00 z 0.00 z 0.00 z 331.50 33.50 0.00 0.00 369.00
1980 0.00 f 0.00 0.00 143.50 418.50 499.50 686.00 512.50 265.50 59.50 0.00 0.00 2585.00
1981 0.00 0.00 0.00 53.50 256.50 409.50 645.00 660.50 281.25 b 53.50 6.00 0.00 2365.75
1982 0.00 0.00 0.00 59.50 0.00 z 302.00 639.00 537.00 261.00 34.50 0.00 0.00 1833.00
1983 0.00 0.00 0.00 24.50 140.00 510.50 767.00 768.00 278.50 11.50 4.50 0.00 2504.50
1984 0.00 0.00 0.00 z 13.00 208.00 501.00 635.50 700.00 208.00 134.00 0.00 0.00 2399.50
1985 0.00 0.00 0.00 107.50 355.00 362.00 613.50 463.00 200.00 21.00 0.00 0.00 2122.00
1986 0.00 0.00 9.50 25.00 345.13 a 528.50 647.00 467.50 174.50 29.50 0.00 0.00 2226.63
1987 0.00 0.00 0.00 183.00 407.00 631.50 730.50 555.50 336.00 29.50 0.00 0.00 2873.00
1988 0.00 0.00 0.00 52.50 426.50 740.00 762.50 697.50 261.00 58.50 0.00 0.00 2998.50
1989 0.00 0.00 0.00 32.00 325.50 462.50 818.50 657.50 346.50 101.50 0.00 0.00 2744.00
1990 0.00 0.00 0.00 118.50 224.50 516.00 651.00 678.00 386.50 45.50 3.50 0.00 2623.50
1991 0.00 0.00 0.00 86.50 439.00 610.50 641.50 681.50 279.50 13.00 0.00 0.00 2751.50
1992 0.00 0.00 0.00 41.00 350.00 367.00 403.50 464.50 214.00 77.00 0.00 0.00 1917.00
1993 0.00 0.00 0.00 5.00 227.50 341.00 464.50 512.00 120.50 30.50 0.00 0.00 1701.00
1994 0.00 0.00 0.00 29.00 285.00 468.00 496.50 492.50 319.50 48.00 0.00 0.00 a 2138.50
1995 0.00 0.00 0.00 0.00 115.50 525.00 561.50 630.00 277.00 31.50 0.00 0.00 2140.50
1996 0.00 0.00 0.00 1.50 175.00 543.00 566.00 660.00 307.00 82.00 0.00 0.00 2334.50
1997 0.00 0.00 0.00 1.50 136.50 547.50 580.50 522.00 325.00 111.00 0.00 0.00 2224.00
1998 0.00 0.00 0.00 78.50 293.00 0.00 z 0.00 z 0.00 z 0.00 z 25.12 b 0.00 0.00 396.62
1999 0.00 0.00 0.00 48.50 224.50 434.50 634.00 517.50 154.50 13.50 3.00 0.00 2030.00
2000 0.00 0.00 0.00 0.00 z 0.00 z 0.00 z 0.00 z 572.50 232.00 43.00 0.00 z 0.00 z 847.50
2001 0.00 0.00 0.00 65.00 239.50 432.50 645.50 625.00 276.50 16.50 0.00 0.00 2300.50
2002 0.00 0.00 0.00 44.50 128.50 518.79 a 691.50 531.00 338.00 2.00 0.00 0.00 2254.29
2003 0.00 0.00 3.00 47.50 175.00 436.50 589.00 665.00 255.50 105.00 0.00 0.00 2276.50
2004 0.00 0.00 0.00 16.00 93.00 331.00 511.50 331.00 303.00 63.00 0.00 0.00 1648.50
2005 0.00 0.00 0.00 57.50 189.50 490.00 631.00 511.00 340.50 44.50 0.00 0.00 2264.00
2006 0.00 0.00 0.00 81.00 253.50 526.00 726.00 565.50 242.50 52.50 0.00 0.00 2447.00
2007 0.00 0.00 0.00 73.00 251.00 517.50 663.50 489.50 262.50 38.50 0.50 0.00 a 2296.00
2008 0.00 0.00 0.00 5.50 108.50 371.50 564.50 565.50 238.00 29.00 5.00 0.00 1887.50
2009 0.00 0.00 a 0.00 11.00 86.50 381.50 475.00 455.50 430.00 0.00 0.00 0.00 1839.50
2010 0.00 0.00 6.50 70.00 266.00 417.50 637.00 631.00 154.50 96.00 0.00 0.00 2278.50
2011 0.00 d 0.00 e 0.00 20.36 b 149.00 412.00 674.50 583.00 269.00 150.00 0.00 0.00 2257.86
2012 0.00 0.00 54.50 39.50 258.00 512.50 775.00 556.50 251.50 25.00 0.00 0.00 2472.50
2013 0.00 a 0.00 0.00 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 0.00 0.00 1.26 39.38 211.94 437.88 601.34 539.25 250.58 55.31 0.67 0.00 2162.11
S.D. 0.00 0.00 5.89 37.31 92.77 94.66 91.00 93.65 71.29 41.49 2.57 0.00 292.35
SKEW 0.00 0.00 7.10 1.55 0.74 0.25 0.21 0.00 0.18 1.61 6.57 0.00 0.14
MAX 0.00 0.00 54.50 183.00 546.50 740.00 902.10 768.00 430.00 247.50 23.50 0.00 2998.50
MIN 0.00 0.00 0.00 0.00 39.00 241.50 403.50 331.00 101.50 0.00 0.00 0.00 1428.00
NO YRS 119 119 117 118 115 112 115 115 117 118 119 115 97