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
1893 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
1894 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
1895 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
1896 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
1897 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 54.00 z 385.00 86.00 0.00 c 0.00 471.00
1898 0.00 0.00 0.00 3.50 91.50 353.00 502.00 390.00 239.50 10.00 0.00 0.00 1589.50
1899 0.00 0.00 0.00 29.50 96.00 351.50 538.50 477.00 156.00 23.50 0.00 0.00 1672.00
1900 0.00 0.00 j 0.00 y 106.00 223.00 417.00 448.50 667.00 250.50 162.50 2.50 0.00 2277.00
1901 0.00 0.00 0.00 44.50 243.00 392.00 650.50 532.50 214.00 60.00 0.00 0.00 2136.50
1902 0.00 0.00 0.00 10.00 215.50 286.00 550.50 413.00 119.00 9.00 0.00 0.00 1603.00
1903 0.00 0.00 0.00 9.00 202.00 336.50 466.00 319.00 165.00 19.00 9.00 0.00 1525.50
1904 0.00 0.00 0.00 u 3.46 d 120.00 319.50 430.00 398.00 140.00 27.00 3.50 0.00 1441.46
1905 0.00 0.00 0.00 11.50 80.00 296.00 521.50 536.50 312.50 79.22 d 0.00 0.00 1837.22
1906 0.00 0.00 0.00 53.00 148.00 397.50 541.00 533.00 398.50 100.50 0.00 b 0.00 2171.50
1907 0.00 0.00 0.00 0.00 25.00 401.00 518.50 451.00 198.50 46.00 0.00 a 0.00 1640.00
1908 0.00 0.00 0.00 62.00 142.00 361.50 542.50 419.00 409.00 100.00 0.00 0.00 2036.00
1909 0.00 0.00 0.00 0.00 101.50 420.50 556.85 d 549.50 202.50 67.00 1.50 0.00 1899.35
1910 0.00 z 0.00 0.00 z 0.00 z 68.00 512.00 546.00 400.00 205.50 110.50 0.00 0.00 1842.00
1911 0.00 0.00 0.00 23.00 176.00 433.50 431.00 325.00 168.50 12.92 a 0.00 0.00 a 1569.92
1912 0.00 0.00 0.00 a 6.50 128.13 a 322.50 495.48 a 324.50 240.00 57.50 0.00 0.00 a 1574.62
1913 0.00 0.00 0.00 65.00 68.50 434.00 444.50 482.00 232.00 55.50 0.00 0.00 1781.50
1914 0.00 0.00 0.00 5.50 232.50 328.50 619.00 419.50 247.50 134.00 0.00 0.00 1986.50
1915 0.00 0.00 0.00 102.50 77.00 222.00 378.50 382.00 225.50 25.50 0.00 0.00 1413.00
1916 0.00 0.00 0.00 1.50 108.50 236.50 721.50 492.50 105.50 33.00 0.00 0.00 a 1699.00
1917 0.00 0.00 0.00 0.00 48.50 190.00 541.00 322.50 183.00 6.00 0.00 0.00 1291.00
1918 0.00 0.00 0.00 4.00 172.00 395.00 525.50 519.50 78.50 31.50 0.00 0.00 1726.00
1919 0.00 0.00 0.00 4.00 200.50 485.50 592.00 422.50 241.00 28.50 0.00 0.00 1974.00
1920 0.00 0.00 0.00 0.00 152.00 361.50 474.00 455.00 302.00 85.50 0.00 0.00 1830.00
1921 0.00 0.00 0.00 13.50 212.50 513.50 743.00 530.50 230.50 32.50 0.00 0.00 2276.00
1922 0.00 0.00 0.00 7.50 311.00 450.00 490.00 557.50 311.50 103.00 0.00 0.00 2230.50
1923 0.00 0.00 0.00 55.50 216.50 535.50 638.50 379.50 265.50 84.50 0.00 0.00 2175.50
1924 0.00 0.00 0.00 5.00 27.50 253.50 475.50 376.50 134.00 95.50 1.50 0.00 a 1369.00
1925 0.00 0.00 1.50 47.00 167.00 328.00 490.00 541.00 252.00 0.00 0.00 0.00 1826.50
1926 0.00 0.00 0.00 a 32.00 210.50 241.50 514.50 426.00 119.00 22.00 0.00 0.00 1565.50
1927 0.00 0.00 0.00 7.50 16.50 308.50 414.50 295.50 309.50 19.00 0.00 0.00 1371.00
1928 0.00 0.00 0.00 1.00 200.50 240.00 494.00 461.00 152.50 67.00 1.00 0.00 1617.00
1929 0.00 0.00 0.00 5.00 141.00 320.50 587.50 477.00 182.50 33.00 0.00 0.00 1746.50
1930 0.00 0.00 0.00 17.50 147.50 409.00 580.00 545.50 243.21 b 102.50 3.50 0.00 2048.71
1931 0.00 0.00 0.00 40.50 142.00 478.50 606.00 439.00 356.00 104.00 3.00 0.00 2169.00
1932 0.00 0.00 0.00 10.50 205.50 477.00 561.50 497.00 159.50 15.00 0.00 0.00 a 1926.00
1933 0.00 0.00 0.00 7.50 188.50 581.50 588.00 428.50 289.50 15.50 1.00 0.00 2100.00
1934 0.00 0.00 0.00 36.92 d 300.00 387.41 a 479.50 328.50 103.00 68.00 0.00 0.00 1703.34
1935 0.00 0.00 0.00 7.50 59.50 253.00 664.50 465.00 152.50 20.50 0.00 0.00 1622.50
1936 0.00 0.00 0.00 0.00 248.50 305.00 678.00 463.00 284.00 35.00 0.00 0.00 2013.50
1937 0.00 0.00 0.00 0.00 147.00 325.50 538.50 587.00 223.00 34.00 0.00 0.00 1855.00
1938 0.00 0.00 0.50 25.50 91.50 377.50 477.00 545.50 156.50 90.50 7.50 0.00 1772.00
1939 0.00 a 0.00 0.00 14.00 244.00 391.00 574.50 484.00 284.50 40.00 0.00 0.00 2032.00
1940 0.00 0.00 0.00 7.00 101.00 317.00 522.00 427.00 309.00 82.00 0.00 0.00 1765.00
1941 0.00 0.00 0.00 71.50 273.50 415.50 611.00 467.00 258.00 32.50 0.00 0.00 2129.00
1942 0.00 0.00 0.00 115.00 107.50 343.50 472.00 487.00 208.00 94.00 1.50 0.00 1828.50
1943 0.00 0.00 0.00 19.50 120.50 414.00 641.00 522.00 173.00 85.00 0.00 0.00 1975.00
1944 0.00 0.00 0.00 8.50 245.50 410.50 536.00 513.50 216.50 56.00 4.50 0.00 1991.00
1945 0.00 0.00 3.00 2.00 69.50 263.50 493.50 510.50 201.00 31.00 0.00 0.00 1574.00
1946 0.00 0.00 22.50 42.50 114.50 375.00 553.00 417.00 201.50 37.00 0.00 0.00 1763.00
1947 0.00 0.00 0.00 13.00 79.00 301.50 587.50 647.00 241.00 188.00 0.00 0.00 2057.00
1948 0.00 0.00 0.00 49.50 152.00 331.00 544.50 506.00 327.50 32.00 0.00 0.00 1942.50
1949 0.00 0.00 0.00 56.00 195.50 472.50 558.00 562.65 a 149.00 65.10 a 0.00 0.00 2058.75
1950 0.00 0.00 0.00 0.00 a 121.00 376.50 465.50 363.00 215.17 a 60.45 a 3.00 0.00 1604.62
1951 0.00 0.00 0.00 22.50 231.98 a 311.38 a 503.00 364.00 143.50 54.00 0.00 0.00 a 1630.36
1952 0.00 c 0.00 0.00 104.50 155.00 444.50 531.50 414.37 a 249.50 6.00 0.00 0.00 1905.37
1953 0.00 0.00 a 0.00 5.00 155.00 447.50 534.50 569.62 c 230.00 173.00 2.50 0.00 a 2117.12
1954 0.00 0.00 0.00 8.50 97.65 a 420.00 530.00 426.00 172.00 20.00 0.00 b 0.00 1674.15
1955 0.00 0.00 0.00 58.97 a 250.50 407.00 672.00 613.50 220.50 63.55 a 0.00 0.00 c 2286.02
1956 0.00 0.00 0.00 0.00 a 124.50 470.00 412.82 a 433.50 150.50 133.09 b 9.00 0.00 1733.40
1957 0.00 0.00 0.00 61.00 144.50 343.50 629.00 465.50 170.00 53.39 d 0.00 b 0.00 a 1866.89
1958 0.00 0.00 0.00 30.00 176.70 a 191.00 454.50 478.50 238.45 a 46.50 b 0.00 0.00 1615.65
1959 0.00 0.00 0.00 6.50 190.00 410.00 561.50 559.00 233.50 14.50 0.00 0.00 a 1975.00
1960 0.00 0.00 0.00 14.50 174.50 323.00 539.50 335.50 l 237.93 a 58.38 a 0.00 0.00 1347.81
1961 0.00 0.00 0.00 0.00 139.50 459.50 542.50 617.50 256.00 92.50 0.00 0.00 2107.50
1962 0.00 0.00 0.00 26.50 214.50 367.00 446.00 496.00 154.50 90.50 0.00 0.00 1795.00
1963 0.00 0.00 8.50 31.00 153.50 459.00 604.00 465.00 270.00 246.50 0.00 0.00 2237.50
1964 0.00 0.00 0.00 28.00 272.50 393.50 645.00 382.50 203.00 57.00 2.50 0.00 1984.00
1965 0.00 0.00 0.00 23.00 199.00 358.00 485.50 459.50 78.62 a 64.00 3.00 0.00 1670.62
1966 0.00 0.00 0.00 1.00 134.50 451.00 681.50 437.50 231.00 43.00 0.00 0.00 1979.50
1967 0.00 0.00 5.50 1.50 93.00 370.50 520.00 448.50 282.00 43.00 0.00 0.00 a 1764.00
1968 0.00 0.00 4.00 46.50 99.00 368.50 516.67 a 472.00 239.00 87.00 0.00 0.00 1832.67
1969 0.00 0.00 0.00 7.00 187.00 221.00 536.00 615.00 268.00 37.00 1.00 0.00 1872.00
1970 0.00 0.00 0.00 31.50 122.50 454.14 a 636.50 545.00 273.00 57.00 0.00 0.00 2119.64
1971 0.00 0.00 0.00 18.50 121.50 494.00 418.50 446.50 283.50 96.00 0.00 0.00 1878.50
1972 0.00 0.00 0.00 5.00 314.00 404.50 480.00 490.50 166.00 44.50 0.00 0.00 1904.50
1973 0.00 0.00 0.00 23.50 124.50 417.50 538.50 616.00 241.50 149.00 0.00 0.00 a 2110.50
1974 0.00 0.00 a 0.00 40.00 120.00 418.00 687.50 424.50 148.50 53.00 0.00 0.00 1891.50
1975 0.00 0.00 0.00 0.00 272.50 414.00 691.00 514.00 164.00 99.50 18.50 0.00 2173.50
1976 0.00 a 0.00 0.00 b 53.50 216.00 513.50 601.00 557.00 274.00 61.50 0.00 0.00 2276.50
1977 0.00 0.00 0.00 89.00 410.00 408.50 582.50 302.50 179.00 22.00 2.50 0.00 1996.00
1978 0.00 0.00 0.00 9.00 270.50 407.00 537.00 518.50 350.50 68.50 15.50 0.00 2176.50
1979 0.00 0.00 0.00 4.66 a 107.50 331.50 577.50 442.00 286.00 21.70 a 0.00 0.00 1770.86
1980 0.00 0.00 0.00 76.50 335.00 402.93 a 623.10 a 493.00 173.00 36.00 0.00 0.00 2139.53
1981 0.00 0.00 2.00 16.50 153.50 356.50 540.00 504.50 203.50 13.00 0.00 0.00 1789.50
1982 0.00 0.00 0.00 29.00 217.50 217.00 508.00 370.00 190.00 25.00 0.00 0.00 1556.50
1983 0.00 0.00 0.00 6.00 88.00 403.50 702.50 693.00 319.50 41.50 1.00 0.00 2255.00
1984 0.00 0.00 0.00 9.00 142.00 453.50 580.00 656.50 170.00 106.00 0.00 0.00 2117.00
1985 0.00 0.00 0.00 79.00 277.00 305.50 553.50 393.00 240.00 18.00 0.00 0.00 1866.00
1986 0.00 0.00 8.50 27.00 226.00 436.50 600.00 440.00 204.00 64.50 0.00 0.00 2006.50
1987 0.00 0.00 0.50 105.50 250.00 541.50 653.00 502.00 282.00 26.00 1.00 0.00 2361.50
1988 0.00 0.00 b 0.00 21.00 329.00 553.00 698.50 572.50 249.31 a 42.00 0.00 0.00 2465.31
1989 0.00 0.00 0.00 13.50 229.00 401.00 668.50 542.50 283.50 97.50 0.00 0.00 2235.50
1990 0.00 0.00 0.00 94.50 117.50 463.50 534.00 505.50 266.00 10.00 6.50 o 0.00 j 1991.00
1991 0.00 a 0.00 b 0.00 n 64.50 328.50 500.00 531.00 598.00 228.00 13.50 n 0.00 n 0.00 k 2250.00
1992 0.00 a 0.00 l 0.00 z 6.00 m 256.50 311.00 343.00 272.00 l 94.50 k 24.00 p 0.00 p 0.00 m 910.50
1993 0.00 m 0.00 o 0.00 m 3.00 137.00 293.50 484.00 531.50 92.50 8.00 k 0.00 m 0.00 l 1541.50
1994 0.00 p 0.00 a 0.00 a 23.50 258.50 445.00 498.00 425.73 a 291.50 32.50 l 0.00 l 0.00 m 1942.23
1995 0.00 b 0.00 m 0.00 i 0.00 n 131.50 573.50 528.50 566.50 250.00 41.00 l 0.00 q 0.00 p 2050.00
1996 0.00 b 0.00 a 0.00 k 3.00 117.50 440.50 499.00 552.00 257.50 31.50 0.00 o 0.00 z 1901.00
1997 0.00 p 0.00 l 0.00 l 7.00 56.50 485.00 510.00 425.00 291.00 54.50 k 0.00 o 0.00 j 1774.50
1998 0.00 l 0.00 i 1.50 i 29.48 a 315.50 359.00 565.00 567.50 351.00 7.00 l 0.00 m 0.00 l 2187.48
1999 0.00 m 0.00 j 2.00 h 17.50 h 193.00 f 421.50 512.00 f 373.50 h 237.86 b 0.00 l 6.00 k 0.00 j 659.36
2000 0.00 k 0.00 k 0.00 n 26.00 j 183.33 b 288.00 554.90 a 530.62 a 202.50 d 66.00 k 8.00 k 0.00 n 1759.34
2001 0.00 j 0.00 j 0.00 i 34.50 k 49.50 y 439.50 590.50 636.03 b 183.50 g 36.50 i 9.50 p 0.00 o 1666.03
2002 0.00 k 0.00 0.00 k 42.00 119.00 483.50 669.00 503.50 349.00 18.50 0.00 o 0.00 z 2184.50
2003 0.00 l 0.00 z 0.00 j 20.50 k 118.50 f 390.50 578.00 632.00 277.00 74.00 i 0.00 m 0.00 j 1877.50
2004 0.00 l 0.00 j 0.00 i 10.00 h 92.40 e 292.00 496.50 312.00 339.00 36.00 k 0.00 k 0.00 n 1531.90
2005 0.00 l 0.00 k 0.00 h 30.50 n 129.50 478.00 609.50 520.00 313.80 e 39.00 k 0.50 n 0.00 m 2050.80
2006 0.00 o 0.00 i 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 17.50 j 0.00 m 0.00 k 0.00
2007 0.00 k 0.00 i 4.00 i 17.50 m 248.50 525.00 625.50 498.50 258.10 a 45.50 i 0.00 m 0.00 l 2155.60
2008 0.00 k 0.00 i 0.00 k 8.50 i 56.00 f 345.50 549.00 517.00 172.00 g 33.50 16.50 j 0.00 d 1445.00
2009 0.00 a 0.00 h 0.00 i 15.50 j 0.00 z 349.00 0.00 z 425.50 321.50 g 0.00 h 0.00 p 0.00 k 774.50
2010 0.00 m 0.00 i 4.00 i 31.50 h 237.27 e 337.50 612.50 592.00 114.00 46.00 k 2.00 j 0.00 k 1893.27
2011 0.00 r 0.00 l 0.00 h 4.50 g 132.94 e 346.55 a 692.16 b 458.50 f 269.40 e 96.00 l 0.00 c 0.00 l 1441.05
2012 0.00 k 0.00 j 12.50 j 5.50 l 222.54 c 494.48 a 737.00 532.50 237.41 a 33.98 e 0.00 d 0.00 n 2257.91
2013 0.00 o 0.00 o 0.00 q 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 0.62 26.90 170.45 386.50 553.96 482.66 229.39 58.85 1.05 0.00 1888.65
S.D. 0.00 0.00 2.74 29.25 77.24 84.50 79.39 85.88 69.08 43.37 2.93 0.00 249.06
SKEW 0.00 0.00 6.27 1.34 0.45 -0.10 0.18 0.00 0.11 1.49 4.11 0.00 -0.10
MAX 0.00 0.00 22.50 115.00 410.00 581.50 743.00 693.00 409.00 246.50 18.50 0.00 2465.31
MIN 0.00 0.00 0.00 0.00 16.50 190.00 343.00 295.50 78.50 0.00 0.00 0.00 1291.00
NO YRS 97 96 91 99 109 114 112 110 111 98 95 94 88