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
1898 0.00 z 0.00 z 0.00 z 0.00 z 184.50 0.00 z 510.50 428.00 215.50 0.00 z 0.00 z 0.00 z 1338.50
1899 0.00 z 0.00 z 0.00 z 33.50 146.00 439.50 590.50 428.00 150.50 6.50 0.00 0.00 1794.50
1900 0.00 0.00 0.00 127.00 289.50 481.00 447.00 579.00 171.50 39.00 0.00 0.00 2134.00
1901 0.00 0.00 0.00 19.00 297.00 340.00 571.00 417.50 140.00 20.00 0.00 0.00 1804.50
1902 0.00 0.00 z 0.00 z 3.50 209.00 256.50 555.50 394.00 99.50 8.00 0.00 0.00 1526.00
1903 0.00 0.00 0.00 13.50 192.50 375.00 472.23 a 347.00 82.22 c 20.15 a 5.00 0.00 a 1507.61
1904 0.00 a 0.00 0.00 a 20.56 c 195.82 a 361.03 a 421.60 a 331.70 a 105.00 a 25.32 a 0.00 a 0.00 a 1461.02
1905 0.00 a 0.00 d 0.00 c 18.62 a 122.00 255.00 469.65 a 482.00 264.00 44.43 a 0.00 a 0.00 a 1655.70
1906 0.00 a 0.00 a 0.00 66.50 105.00 384.83 a 492.90 a 453.00 315.52 a 26.57 c 0.00 b 0.00 k 1844.32
1907 0.00 g 0.00 a 0.00 a 0.00 23.50 393.50 487.50 402.00 131.79 b 0.00 b 0.00 a 0.00 a 1438.29
1908 0.00 a 0.00 a 0.00 67.50 122.97 a 304.50 552.83 a 0.00 z 298.00 24.00 0.00 0.00 1369.80
1909 0.00 0.00 0.00 a 0.00 119.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 i 0.00 e 119.00
1910 0.00 a 0.00 5.50 37.50 105.00 565.50 514.50 316.50 123.00 0.00 z 3.00 0.00 1670.50
1911 0.00 0.00 0.00 32.00 210.50 461.50 419.00 368.50 134.00 48.50 0.00 0.00 1674.00
1912 0.00 0.00 0.00 19.00 99.00 339.00 506.00 365.50 182.50 0.00 0.00 0.00 1511.00
1913 0.00 a 0.00 0.00 67.00 116.50 438.00 459.50 521.50 230.50 9.50 0.00 0.00 1842.50
1914 0.00 0.00 0.00 21.50 288.00 432.50 692.50 368.00 257.00 121.50 0.00 0.00 2181.00
1915 0.00 0.00 0.00 95.50 187.00 287.50 418.00 492.00 228.00 10.50 0.00 0.00 1718.50
1916 0.00 0.00 0.00 8.00 119.00 303.00 814.00 512.00 204.00 13.00 0.00 0.00 1973.00
1917 0.00 0.00 0.00 0.00 118.00 304.00 687.50 494.50 240.50 0.00 0.00 0.00 1844.50
1918 0.00 0.00 0.00 43.00 146.50 377.50 441.00 491.50 94.00 26.50 0.00 0.00 1620.00
1919 0.00 0.00 0.00 39.50 333.00 526.00 707.00 605.00 251.00 19.00 0.00 0.00 2480.50
1920 0.00 0.00 0.00 1.50 265.64 b 432.50 542.00 615.50 329.00 74.00 0.00 0.00 2260.14
1921 0.00 0.00 0.00 4.00 222.00 521.50 671.50 450.50 217.24 a 18.50 0.00 a 0.00 2105.24
1922 0.00 a 0.00 a 0.00 36.50 304.00 468.50 508.50 579.00 249.00 58.50 0.00 0.00 2204.00
1923 0.00 0.00 0.00 30.00 234.00 535.00 644.50 356.50 241.03 a 20.15 a 0.00 0.00 2061.18
1924 0.00 0.00 0.00 2.00 45.00 298.00 434.50 392.00 136.55 a 74.00 0.00 0.00 1382.05
1925 0.00 0.00 0.00 25.00 161.00 339.00 489.50 499.50 172.50 0.00 0.00 a 0.00 1686.50
1926 0.00 0.00 0.00 67.50 b 247.00 148.50 464.50 380.00 129.50 11.00 0.00 0.00 c 1448.00
1927 0.00 0.00 0.00 10.00 62.00 300.50 485.31 b 378.72 a 302.50 19.50 0.00 a 0.00 1558.53
1928 0.00 0.00 0.00 11.00 206.50 337.00 420.00 319.00 41.50 0.00 0.00 0.00 1335.00
1929 0.00 0.00 0.00 14.00 96.00 320.50 458.00 427.00 117.50 4.50 0.00 0.00 1437.50
1930 0.00 0.00 0.00 11.00 103.50 417.41 a 589.00 598.00 219.50 13.50 0.00 0.00 1951.91
1931 0.00 a 0.00 0.00 29.00 140.50 480.00 553.50 496.00 284.00 34.00 1.00 0.00 2018.00
1932 0.00 0.00 0.00 20.50 188.50 560.00 545.50 536.00 184.50 24.00 0.00 0.00 c 2059.00
1933 0.00 0.00 0.00 17.07 a 210.36 c 566.00 576.00 528.00 267.93 a 7.00 0.00 0.00 2172.36
1934 0.00 0.00 a 0.00 18.50 306.38 a 360.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 684.88
1935 0.00 z 0.00 z 0.00 z 0.00 z 80.50 k 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1936 0.00 0.00 0.00 0.00 356.50 433.50 831.00 528.03 a 251.50 33.00 0.00 0.00 2433.53
1937 0.00 0.00 0.00 1.00 228.00 396.00 584.00 609.00 204.00 23.50 0.00 0.00 2045.50
1938 0.00 0.00 3.00 17.50 143.50 390.00 582.50 624.50 294.50 114.50 0.00 0.00 2170.00
1939 0.00 0.00 0.00 38.00 271.00 364.50 727.00 562.00 297.50 16.53 a 0.00 0.00 2276.53
1940 0.00 z 0.00 z 0.00 11.00 198.50 320.50 618.00 555.00 368.00 88.50 0.00 0.00 2159.50
1941 0.00 0.00 0.00 48.00 267.00 453.00 646.50 501.50 199.00 12.50 0.00 0.00 2127.50
1942 0.00 0.00 0.00 63.00 97.00 330.00 490.50 475.50 197.00 127.50 0.00 0.00 1780.50
1943 0.00 0.00 0.00 21.50 100.50 323.00 662.00 494.00 150.50 104.50 0.00 0.00 1856.00
1944 0.00 0.00 0.00 24.00 0.00 z 353.50 539.50 461.00 182.50 46.00 0.00 0.00 1606.50
1945 0.00 0.00 5.50 0.00 29.00 271.50 506.00 492.00 168.50 22.00 0.00 0.00 1494.50
1946 0.00 0.00 8.00 40.00 156.00 356.00 559.50 438.00 182.00 21.00 0.00 0.00 1760.50
1947 0.00 0.00 0.00 20.00 42.50 300.50 571.50 581.00 199.00 81.50 0.00 0.00 1796.00
1948 0.00 0.00 0.00 13.50 193.00 357.00 566.00 554.50 362.50 43.00 0.00 0.00 2089.50
1949 0.00 0.00 0.00 66.50 162.00 374.50 526.50 614.00 149.00 32.50 0.00 0.00 1925.00
1950 0.00 0.00 0.00 0.00 100.00 f 313.00 463.00 358.50 238.00 0.00 z 0.00 a 0.00 a 1372.50
1951 0.00 b 0.00 0.00 12.93 a 197.50 302.07 a 558.52 a 398.87 a 177.00 78.00 0.00 0.00 1724.88
1952 0.00 0.00 b 0.00 180.50 206.50 467.00 601.00 554.00 375.52 a 21.00 0.00 b 0.00 2405.52
1953 0.00 0.00 a 0.00 4.00 184.50 404.48 a 553.50 613.50 241.50 173.00 2.50 0.00 2176.98
1954 0.00 h 0.00 0.00 5.50 136.00 406.00 618.50 548.50 218.50 56.63 e 0.00 a 0.00 1989.63
1955 0.00 a 0.00 c 0.00 82.00 281.00 446.00 742.89 c 656.34 b 246.21 a 60.34 c 0.00 0.00 2514.78
1956 0.00 0.00 e 0.00 b 0.00 132.02 b 583.33 c 384.50 i 526.50 115.00 112.63 a 0.00 a 0.00 c 1469.48
1957 0.00 a 0.00 e 0.00 a 66.00 189.50 g 263.50 664.95 a 530.62 a 201.00 92.00 0.00 0.00 a 1818.07
1958 0.00 a 0.00 0.00 25.34 a 185.50 251.11 c 491.50 477.00 254.00 40.00 i 0.00 a 0.00 a 1684.46
1959 0.00 0.00 z 0.00 11.00 153.50 457.00 598.50 603.50 244.00 13.00 0.00 0.00 2080.50
1960 0.00 0.00 a 0.00 a 11.90 a 230.50 369.00 565.50 579.50 333.62 a 91.00 0.00 0.00 2181.02
1961 0.00 c 0.00 0.00 8.28 a 200.50 534.00 550.50 660.50 201.50 99.20 a 0.00 a 0.00 2254.48
1962 0.00 0.00 0.00 11.00 101.50 l 472.50 517.50 534.50 165.52 a 92.00 0.00 0.00 1793.02
1963 0.00 0.00 7.50 34.00 159.00 557.50 668.00 563.50 318.00 204.50 0.00 0.00 2512.00
1964 0.00 0.00 0.00 37.00 262.00 359.00 657.00 415.50 180.50 49.00 1.50 0.00 z 1961.50
1965 0.00 0.00 0.00 10.50 0.00 z 424.00 531.50 502.50 0.00 z 0.00 z 0.00 z 0.00 z 1468.50
1966 0.00 b 0.00 z 0.00 z 0.00 z 0.00 z 419.40 e 643.50 463.50 258.50 19.50 0.00 0.00 c 1804.40
1967 0.00 a 0.00 a 0.00 0.00 c 130.00 374.42 d 553.02 c 451.16 c 318.21 b 25.00 f 0.00 c 0.00 c 1826.82
1968 0.00 g 0.00 0.00 e 21.50 i 125.03 a 240.00 j 323.00 j 351.73 e 250.20 e 29.85 d 0.00 c 0.00 d 756.82
1969 0.00 0.00 a 0.00 c 37.50 170.50 a 125.00 h 501.37 e 662.00 271.55 a 5.00 0.00 h 0.00 b 1647.92
1970 0.00 z 0.00 b 0.00 z 3.50 f 97.59 d 356.50 i 0.00 z 351.50 j 219.00 e 42.22 b 0.00 a 0.00 d 358.82
1971 0.00 b 0.00 c 0.00 5.56 c 84.50 f 483.10 a 340.50 f 525.34 c 265.34 a 32.00 0.00 e 0.00 h 1311.34
1972 0.00 e 0.00 a 0.00 e 12.32 b 166.00 l 442.22 c 427.50 538.50 137.00 17.00 0.00 0.00 1574.54
1973 0.00 0.00 0.00 11.38 a 148.00 387.00 489.50 594.00 194.44 c 79.50 0.00 0.00 1903.82
1974 0.00 0.00 0.00 19.00 67.50 428.50 695.00 384.00 117.00 21.00 0.00 0.00 1732.00
1975 0.00 b 0.00 0.00 0.00 174.00 367.00 645.00 443.00 138.00 71.50 14.00 0.00 1852.50
1976 0.00 0.00 0.00 d 11.00 175.00 469.00 523.00 530.74 b 0.00 z 0.00 z 0.00 0.00 1708.74
1977 0.00 0.00 d 0.00 68.28 a 490.00 375.00 504.50 249.00 151.50 26.00 1.00 0.00 a 1865.28
1978 0.00 c 0.00 0.00 23.50 272.50 331.67 c 501.74 d 382.91 d 253.50 27.90 a 0.00 0.00 1793.71
1979 0.00 0.00 0.00 0.50 86.50 354.50 593.50 348.23 a 178.00 10.50 0.00 0.00 1571.73
1980 0.00 0.00 0.00 90.50 390.50 376.50 551.59 b 364.25 c 169.00 30.00 0.00 0.00 1972.34
1981 0.00 0.00 0.00 25.00 151.38 a 320.17 a 529.58 a 547.48 c 167.50 15.50 0.00 0.00 1756.62
1982 0.00 0.00 0.00 32.50 205.50 181.00 495.00 400.00 182.00 10.50 0.00 0.00 1506.50
1983 0.00 0.00 0.00 16.00 69.50 364.50 665.00 668.00 199.00 0.00 0.00 0.00 1982.00
1984 0.00 0.00 0.00 14.00 127.00 388.50 491.00 561.00 104.00 54.00 0.00 0.00 1739.50
1985 0.00 0.00 0.00 63.00 239.00 226.00 465.50 334.00 114.50 6.50 0.00 0.00 1448.50
1986 0.00 0.00 0.00 7.50 278.00 393.00 542.50 384.50 101.50 6.50 0.00 0.00 1713.50
1987 0.00 0.00 0.00 81.50 260.92 a 440.00 533.00 418.50 206.50 13.00 0.00 0.00 1953.42
1988 0.00 0.00 0.00 16.50 311.50 630.50 605.00 512.00 122.50 27.00 0.00 0.00 2225.00
1989 0.00 0.00 b 0.00 9.00 250.00 343.50 646.50 504.50 205.00 49.50 0.00 0.00 2008.00
1990 0.00 0.00 0.00 79.00 158.00 420.00 495.00 517.50 245.50 20.00 0.00 0.00 1935.00
1991 0.00 0.00 0.00 70.00 345.50 509.50 533.50 585.00 182.00 4.50 0.00 0.00 2230.00
1992 0.00 0.00 0.00 11.00 245.50 294.00 285.00 345.50 112.50 43.50 0.00 0.00 1337.00
1993 0.00 0.00 0.00 2.50 173.00 284.00 401.50 431.00 73.50 1.50 0.00 0.00 1367.00
1994 0.00 0.00 0.00 7.00 204.50 417.00 439.00 388.00 241.50 37.50 0.00 0.00 1734.50
1995 0.00 0.00 0.00 0.00 127.50 584.00 520.00 524.00 203.50 21.00 0.00 0.00 1980.00
1996 0.00 0.00 0.00 0.00 127.50 462.00 508.00 520.00 217.00 24.50 0.00 0.00 1859.00
1997 0.00 0.00 0.00 0.00 105.50 505.00 540.50 466.50 267.50 70.50 0.00 0.00 1955.50
1998 0.00 0.00 0.00 57.00 271.50 334.00 552.50 575.00 289.00 18.50 0.00 0.00 2097.50
1999 0.00 0.00 0.00 46.50 207.00 378.00 545.17 b 458.00 142.76 a 0.00 7.50 0.00 1784.93
2000 0.00 0.00 0.00 38.00 182.00 305.17 a 560.00 531.00 165.00 31.00 4.00 0.00 1816.17
2001 0.00 0.00 0.00 47.50 215.00 364.00 376.00 i 553.19 b 235.34 a 22.50 0.00 0.00 1437.53
2002 0.00 0.00 0.00 27.00 96.00 478.00 645.50 476.50 296.50 7.50 0.00 0.00 2027.00
2003 0.00 0.00 0.00 37.00 198.50 390.00 545.50 622.00 230.00 69.50 0.00 0.00 2092.50
2004 0.00 0.00 0.00 4.50 60.50 254.50 480.00 195.19 d 255.00 29.00 0.00 0.00 1278.69
2005 0.00 0.00 0.00 40.50 124.50 445.00 571.50 478.50 266.00 38.50 0.00 0.00 1964.50
2006 0.00 0.00 0.00 68.00 187.50 460.00 650.50 493.00 190.50 41.50 0.00 0.00 2091.00
2007 0.00 0.00 z 0.00 48.50 169.00 450.00 611.50 424.50 189.00 9.00 0.00 0.00 1901.50
2008 0.00 0.00 0.00 4.50 78.00 322.50 488.50 483.00 0.00 z 8.50 5.00 0.00 c 1390.00
2009 0.00 0.00 0.00 2.50 54.50 353.50 420.00 407.50 409.50 0.00 0.00 0.00 1647.50
2010 0.00 0.00 0.50 43.00 224.50 372.00 585.00 548.00 109.00 81.50 0.00 0.00 1963.50
2011 0.00 c 0.00 0.00 6.50 130.50 343.50 614.12 b 537.85 a 242.50 92.48 a 0.00 0.00 a 1967.45
2012 0.00 a 0.00 24.28 a 27.93 a 167.92 a 426.50 656.50 486.38 b 186.00 25.00 0.00 0.00 a 2000.51
2013 0.00 a 0.00 a 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 0.49 28.25 180.84 390.74 551.93 482.11 207.33 38.30 0.41 0.00 1888.74
S.D. 0.00 0.00 2.63 29.68 82.31 89.47 89.57 94.26 71.38 37.79 1.72 0.00 292.36
SKEW 0.00 0.00 7.35 1.96 0.68 0.20 0.41 -0.30 0.27 1.75 5.72 0.00 -0.05
MAX 0.00 0.00 24.28 180.50 490.00 630.50 831.00 668.00 409.50 204.50 14.00 0.00 2514.78
MIN 0.00 0.00 0.00 0.00 23.50 148.50 285.00 195.19 41.50 0.00 0.00 0.00 1278.69
NO YRS 108 108 110 110 106 109 107 110 109 105 109 108 83