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
1904 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 242.50 n 427.50 372.50 176.50 35.50 0.00 0.00 1012.00
1905 0.00 0.00 0.00 19.50 98.50 337.00 496.50 526.50 324.50 79.50 0.00 0.00 1882.00
1906 0.00 0.00 0.00 59.50 143.50 366.00 529.00 537.50 360.50 56.00 3.00 0.00 2055.00
1907 0.00 0.00 0.00 0.00 40.00 369.00 502.00 494.50 208.00 29.50 0.00 0.00 1643.00
1908 0.00 0.00 0.00 83.00 170.50 a 373.00 581.50 453.50 442.50 87.00 0.00 0.00 2191.00
1909 0.00 0.00 0.00 0.00 151.00 419.00 556.50 616.00 226.00 86.50 4.29 b 0.00 2059.29
1910 0.00 0.00 31.00 77.00 89.50 517.50 539.00 432.50 242.50 131.00 0.00 0.00 2060.00
1911 0.00 0.00 4.00 30.00 310.50 580.50 543.50 429.50 245.50 28.00 0.00 0.00 2171.50
1912 0.00 0.00 0.00 28.00 197.50 348.50 573.50 396.00 277.78 c 43.40 a 0.00 0.00 1864.68
1913 0.00 0.00 0.00 a 85.50 120.00 491.50 530.00 565.50 274.00 74.40 a 4.00 0.00 2144.90
1914 0.00 0.00 0.00 22.50 260.00 391.50 679.00 460.00 274.50 167.50 0.00 0.00 a 2255.00
1915 0.00 0.00 0.00 170.50 97.50 288.00 439.17 a 416.00 204.50 35.00 0.00 0.00 1650.67
1916 0.00 0.00 0.00 19.00 171.00 287.50 776.00 555.00 225.00 57.50 8.79 a 0.00 2099.79
1917 0.00 0.00 0.00 0.00 f 113.00 310.00 630.00 448.50 215.50 4.50 0.00 0.00 1721.50
1918 0.00 0.00 2.50 16.50 236.00 473.00 587.50 588.50 111.00 62.50 1.50 0.00 2079.00
1919 0.00 0.00 0.00 8.50 209.00 530.00 682.50 501.50 334.00 45.00 0.00 0.00 2310.50
1920 0.00 0.00 0.50 2.50 238.50 457.00 566.50 515.00 372.00 151.00 0.00 0.00 2303.00
1921 0.00 0.00 1.50 83.50 291.00 602.50 781.50 549.00 330.00 47.50 0.00 0.00 2686.50
1922 0.00 0.00 0.00 f 9.50 346.00 477.50 545.00 616.50 347.50 107.50 2.00 0.00 2451.50
1923 0.00 0.00 0.00 44.50 238.00 573.50 675.50 463.50 340.00 78.50 0.00 0.00 2413.50
1924 0.00 0.00 0.00 17.50 66.00 347.07 a 547.00 466.00 179.00 110.50 0.00 0.00 1733.07
1925 0.00 0.00 5.50 73.00 150.00 430.50 552.50 636.50 338.50 0.00 0.00 0.00 2186.50
1926 0.00 a 0.00 0.00 50.50 310.00 345.00 613.00 510.00 188.00 58.00 0.00 0.00 c 2074.50
1927 0.00 0.00 2.50 25.50 94.50 406.00 524.50 411.50 361.50 20.50 0.00 0.00 1846.50
1928 0.00 0.00 5.50 15.50 253.50 292.50 592.50 541.50 191.50 82.50 2.50 0.00 1977.50
1929 0.00 0.00 0.00 29.50 167.50 372.00 643.00 551.00 222.00 44.50 0.00 0.00 2029.50
1930 0.00 0.00 a 0.00 62.00 202.00 479.50 639.00 626.50 298.50 120.00 8.00 0.00 a 2435.50
1931 0.00 0.00 0.00 83.50 176.50 600.50 702.50 535.50 445.00 108.50 2.50 0.00 2654.50
1932 0.00 0.00 0.00 20.50 243.00 557.00 766.00 660.00 214.50 42.00 0.00 0.00 2503.00
1933 0.00 0.00 0.00 19.50 240.00 760.00 773.00 601.00 420.00 37.00 5.50 0.00 2856.00
1934 0.00 0.00 0.00 46.50 445.00 527.50 656.50 526.48 a 197.50 127.00 0.00 0.00 2526.48
1935 0.00 0.00 0.50 30.00 114.00 321.50 764.00 542.50 228.00 40.00 0.00 0.00 2040.50
1936 0.00 0.00 0.00 a 7.50 313.00 396.50 807.00 591.50 350.50 39.50 0.00 0.00 2505.50
1937 0.00 0.00 0.00 2.00 201.50 397.00 643.00 705.50 289.00 41.50 0.00 0.00 2279.50
1938 0.00 0.00 6.50 47.00 145.50 432.00 603.50 619.50 273.00 121.00 16.50 0.00 2264.50
1939 0.00 0.00 0.00 25.00 262.50 423.00 626.00 542.00 328.50 50.00 0.00 0.00 2257.00
1940 0.00 a 0.00 0.00 12.00 125.50 376.50 634.50 448.00 327.00 72.50 0.00 0.00 1996.00
1941 0.00 0.00 0.00 91.50 284.00 430.00 632.50 531.50 277.50 37.50 0.00 0.00 2284.50
1942 0.00 0.00 0.00 117.50 113.00 360.50 518.50 528.50 221.00 70.78 a 2.00 0.00 1931.78
1943 0.00 0.00 1.50 9.00 143.50 489.00 685.50 593.00 188.50 73.00 0.00 0.00 2183.00
1944 0.00 0.00 0.00 7.00 311.50 469.50 595.00 571.00 253.00 43.50 7.50 0.00 2258.00
1945 0.00 0.00 25.00 18.50 85.50 287.50 531.50 532.50 218.00 31.50 0.00 0.00 1730.00
1946 0.00 0.00 18.00 65.00 114.00 416.00 610.50 455.00 219.00 52.00 0.00 0.00 1949.50
1947 0.00 0.00 0.00 17.50 98.00 351.00 730.50 770.50 327.50 241.00 1.00 0.00 2537.00
1948 0.00 0.00 0.00 84.50 214.00 435.00 a 656.00 616.50 429.50 51.00 4.00 0.00 2490.50
1949 0.00 0.00 0.00 70.00 308.50 586.00 698.53 a 658.00 201.50 106.50 0.50 0.00 2629.53
1950 0.00 0.00 0.00 1.50 181.00 477.00 567.50 476.00 294.00 100.50 2.50 0.00 2100.00
1951 0.00 0.00 0.00 34.50 314.50 358.00 612.25 a 472.50 199.50 88.50 0.00 0.00 2079.75
1952 0.00 0.00 0.00 132.00 234.50 535.50 673.00 529.00 340.00 13.00 0.00 0.00 2457.00
1953 0.00 0.00 0.00 13.00 241.00 547.00 623.50 642.50 300.50 210.00 4.00 0.00 a 2581.50
1954 0.00 0.00 a 0.00 21.50 121.50 537.50 644.50 524.00 240.50 35.50 0.00 0.00 2125.00
1955 0.00 0.00 0.00 105.50 339.50 505.00 803.50 706.50 295.50 93.00 0.00 0.00 2848.50
1956 0.00 0.00 0.00 0.00 230.50 540.50 525.00 560.50 189.00 166.00 18.00 0.00 2229.50
1957 0.00 0.00 0.00 105.50 192.50 423.50 743.50 575.50 240.50 57.00 0.00 0.00 2338.00
1958 0.00 0.00 0.00 47.50 256.50 289.00 545.00 597.50 332.00 79.00 0.00 0.00 2146.50
1959 0.00 a 0.00 0.00 23.00 302.00 558.50 684.50 704.00 322.00 19.50 0.00 0.00 2613.50
1960 0.00 0.00 0.00 a 41.50 231.00 399.50 668.50 675.50 351.00 91.50 0.00 0.00 2458.50
1961 0.00 0.00 1.50 8.50 168.50 488.00 608.50 654.62 a 290.50 91.00 0.00 0.00 2311.12
1962 0.00 0.00 0.00 45.50 313.00 435.50 520.00 541.00 206.50 122.00 0.00 0.00 2183.50
1963 0.00 0.00 9.50 48.50 208.50 540.50 691.50 538.00 319.00 195.50 0.00 0.00 2551.00
1964 0.00 0.00 0.00 50.00 303.00 460.50 712.00 501.50 268.50 86.50 10.50 0.00 2392.50
1965 0.00 0.00 0.00 24.50 257.50 426.00 540.50 507.00 92.50 80.00 0.00 0.00 1928.00
1966 0.00 0.00 5.00 4.00 151.50 501.00 733.50 484.50 270.00 43.50 0.00 0.00 2193.00
1967 0.00 0.00 10.50 20.00 123.00 410.00 567.50 478.50 306.00 74.00 0.00 0.00 1989.50
1968 0.00 0.00 16.50 59.50 122.50 425.00 580.50 556.00 285.50 112.50 0.00 0.00 2158.00
1969 0.00 0.00 0.00 24.50 280.00 285.50 595.50 629.50 292.00 57.50 1.00 0.00 2165.50
1970 0.00 0.00 0.00 65.50 194.50 504.50 670.00 569.00 294.50 70.00 0.00 0.00 2368.00
1971 0.00 0.00 0.00 47.50 121.50 541.00 460.50 454.50 308.00 118.50 0.00 0.00 2051.50
1972 0.00 0.00 0.00 16.50 297.00 412.00 535.00 529.50 205.50 51.50 0.00 0.00 2047.00
1973 0.00 0.00 0.00 42.50 139.50 449.00 599.50 625.00 251.00 146.00 0.00 0.00 2252.50
1974 0.00 0.00 0.00 64.00 143.00 381.50 699.00 439.50 155.50 60.50 1.00 0.00 1944.00
1975 0.00 0.00 0.00 0.00 294.00 445.00 690.50 548.50 180.00 100.50 9.00 0.00 2267.50
1976 0.00 0.00 0.00 78.50 205.50 524.00 662.50 623.00 289.00 68.00 0.00 b 0.00 2450.50
1977 0.00 0.00 3.50 145.00 447.50 458.00 660.00 381.50 248.00 13.50 4.00 0.00 2361.00
1978 0.00 0.00 0.50 13.00 271.50 392.50 541.50 516.15 a 326.00 56.32 a 1.50 0.00 2118.97
1979 0.00 0.00 0.00 31.00 118.50 384.50 546.00 433.00 258.50 22.00 0.00 0.00 1793.50
1980 0.00 0.00 0.00 z 88.50 300.00 393.50 607.50 556.50 0.00 z 35.98 c 0.00 0.00 1981.98
1981 0.00 0.00 5.00 42.00 155.50 375.00 561.00 523.50 206.00 9.50 0.00 i 0.00 1877.50
1982 0.00 0.00 0.00 47.50 304.50 249.50 581.25 a 457.00 150.50 17.50 0.00 a 0.00 1807.75
1983 0.00 z 0.00 0.00 13.00 78.00 420.50 668.10 b 624.50 234.00 19.00 0.00 0.00 2057.10
1984 0.00 0.00 0.00 11.50 93.50 355.50 454.50 473.50 73.50 34.74 b 0.00 0.00 1496.74
1985 0.00 0.00 b 0.00 91.50 257.50 283.50 498.58 a 340.50 198.89 c 5.00 0.00 d 0.00 e 1675.47
1986 0.00 0.00 5.50 24.50 194.00 368.00 537.50 329.00 123.21 b 12.29 b 0.00 0.00 1594.01
1987 0.00 a 0.00 3.00 69.50 235.00 472.76 a 638.00 370.45 a 0.00 z 0.00 z 0.00 z 0.00 1788.71
1988 0.00 g 0.00 z 0.00 0.00 z 255.50 414.00 540.95 a 512.53 a 236.00 15.50 0.00 0.00 1974.48
1989 0.00 0.00 0.00 28.50 215.00 420.00 685.00 507.00 232.00 62.50 0.00 a 0.00 2150.00
1990 0.00 0.00 0.00 101.00 95.00 417.50 489.00 489.00 294.00 12.00 7.50 0.00 1905.00
1991 0.00 0.00 0.00 74.00 347.00 528.50 529.00 569.00 245.50 16.50 0.00 0.00 2309.50
1992 0.00 0.00 0.00 y 0.00 z 267.00 369.00 386.50 0.00 z 200.00 73.50 0.00 0.00 1296.00
1993 0.00 0.00 0.00 12.50 182.50 379.00 553.00 559.50 103.50 28.00 0.00 0.00 1818.00
1994 0.00 0.00 0.00 45.50 262.00 490.00 553.00 456.00 342.50 63.00 0.00 0.00 2212.00
1995 0.00 0.00 0.00 0.00 160.50 574.00 594.50 631.50 258.50 53.00 0.00 0.00 2272.00
1996 0.00 0.00 0.00 2.00 149.50 427.50 510.50 0.00 z 0.00 z 54.50 0.00 0.00 1144.00
1997 0.00 0.00 0.00 9.00 91.50 510.50 547.50 431.00 302.00 105.00 0.00 0.00 1996.50
1998 0.00 0.00 6.00 0.00 z 344.50 386.50 0.00 z 594.00 0.00 z 0.00 z 0.00 0.00 z 1331.00
1999 0.00 0.00 4.50 16.50 257.50 442.00 666.50 516.50 217.00 18.00 10.50 0.00 2149.00
2000 0.00 0.00 18.60 a 37.00 215.50 345.54 b 577.12 a 547.50 229.00 85.50 12.00 0.00 2067.75
2001 0.00 0.00 0.00 52.50 0.00 z 454.50 634.50 625.50 233.00 36.50 21.50 0.00 2058.00
2002 0.00 z 0.00 0.00 55.50 101.50 488.50 669.00 514.00 329.50 28.50 0.00 0.00 2186.50
2003 0.00 0.00 0.00 37.50 142.50 382.50 574.00 624.00 284.00 89.00 0.00 0.00 2133.50
2004 0.00 0.00 0.00 23.00 111.00 308.50 490.32 a 343.00 376.50 52.00 0.00 0.00 1704.32
2005 0.00 0.00 4.00 63.50 156.00 555.00 642.50 531.50 0.00 z 84.00 0.00 0.00 2036.50
2006 0.00 0.00 0.00 75.00 240.00 456.00 718.00 553.00 205.50 49.50 0.00 0.00 2297.00
2007 0.00 0.00 13.00 73.00 289.50 526.00 648.00 515.50 304.00 116.50 0.00 0.00 2485.50
2008 0.00 0.00 0.00 15.00 95.00 392.00 637.00 511.00 270.00 41.50 20.00 0.00 1981.50
2009 0.00 0.00 0.00 28.50 163.00 402.00 433.00 448.00 393.50 0.00 0.00 0.00 1868.00
2010 0.00 0.00 5.00 69.50 261.50 422.00 641.50 631.50 154.00 78.00 3.50 0.00 2266.50
2011 0.00 0.00 0.00 11.50 182.00 378.50 730.00 568.50 256.00 148.50 0.00 0.00 2275.00
2012 0.00 0.00 64.58 a 36.00 275.50 503.00 748.50 513.50 260.00 36.00 0.00 0.00 2437.08
2013 0.00 0.00 0.00 a 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 2.65 42.07 205.48 435.25 609.61 533.18 263.29 67.60 1.87 0.00 2173.01
S.D. 0.00 0.00 7.97 34.63 83.97 87.50 87.99 84.56 74.17 45.81 4.29 0.00 276.74
SKEW 0.00 0.00 5.35 1.12 0.35 0.44 0.06 -0.01 0.03 1.16 2.89 0.00 0.00
MAX 0.00 0.00 64.58 170.50 447.50 760.00 807.00 770.50 445.00 241.00 21.50 0.00 2856.00
MIN 0.00 0.00 0.00 0.00 40.00 249.50 386.50 329.00 73.50 0.00 0.00 0.00 1496.74
NO YRS 106 108 106 104 107 108 108 107 104 107 107 108 95