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
1915 0.00 0.00 0.00 128.00 82.00 223.50 363.00 307.00 219.50 8.50 0.00 a 0.00 1331.50
1916 0.00 0.00 0.00 5.00 109.50 219.50 686.00 491.00 206.00 66.50 1.00 0.00 1784.50
1917 0.00 0.00 0.00 9.00 58.00 245.50 507.00 326.50 127.00 2.50 0.00 0.00 1275.50
1918 0.00 z 0.00 0.00 b 8.50 215.00 333.00 454.50 452.50 88.00 38.00 1.00 0.00 1590.50
1919 0.00 0.00 0.00 5.50 151.50 496.00 536.50 411.50 270.00 41.50 0.00 0.00 a 1912.50
1920 0.00 a 0.00 0.00 2.00 140.50 392.00 402.00 372.50 302.00 143.00 0.00 0.00 1754.00
1921 0.00 0.00 0.00 81.50 278.48 a 511.00 667.50 431.50 280.71 b 28.50 0.00 0.00 2279.20
1922 0.00 d 0.00 m 0.00 4.50 283.00 387.00 436.00 478.00 301.00 86.00 0.50 0.00 1976.00
1923 0.00 c 0.00 0.00 42.50 207.59 c 478.50 585.00 320.85 a 290.00 51.50 0.00 z 0.00 z 1975.94
1924 0.00 z 0.00 k 0.00 2.07 a 20.50 278.28 a 450.00 372.57 d 124.00 112.24 b 1.20 e 0.00 1360.86
1925 0.00 z 0.00 0.00 44.50 93.00 358.50 443.00 478.43 a 280.18 b 0.00 0.00 0.00 1697.61
1926 0.00 0.00 a 0.00 16.00 181.50 198.00 426.00 376.17 e 126.21 a 28.00 0.00 0.00 1351.88
1927 0.00 a 0.00 a 0.00 9.00 60.00 238.50 384.00 258.50 302.50 26.50 0.00 0.00 1279.00
1928 0.00 e 0.00 0.00 3.00 139.50 205.86 a 472.50 419.50 128.50 54.00 0.00 0.00 1422.86
1929 0.00 0.00 0.00 15.00 126.00 265.50 472.50 375.00 174.50 20.50 0.00 0.00 b 1449.00
1930 0.00 a 0.00 0.00 28.97 a 178.00 370.00 516.50 536.50 266.90 a 131.75 a 9.00 0.00 2037.61
1931 0.00 0.00 0.00 49.00 146.00 465.50 576.50 364.00 314.50 60.00 4.50 0.00 1980.00
1932 0.00 0.00 0.00 14.00 123.50 400.00 487.00 409.50 108.00 13.00 0.00 0.00 b 1555.00
1933 0.00 0.00 0.00 5.00 179.00 565.71 b 579.18 a 400.50 275.50 11.00 11.50 0.00 2027.40
1934 0.00 0.00 0.00 a 22.00 297.00 411.00 485.48 c 366.00 140.50 53.50 0.00 0.00 1775.48
1935 0.00 c 0.00 a 0.00 24.50 57.50 205.00 641.50 441.50 155.50 23.77 a 0.00 0.00 a 1549.27
1936 0.00 0.00 0.00 2.00 215.40 b 251.50 623.62 a 456.50 288.50 19.50 0.00 0.00 1857.01
1937 0.00 0.00 0.00 1.50 136.00 330.00 a 557.50 552.50 212.50 33.00 0.00 0.00 z 1823.00
1938 0.00 a 0.00 3.50 37.00 146.00 319.00 499.00 511.50 176.00 92.00 13.50 0.00 1797.50
1939 0.00 0.00 0.00 d 24.00 234.57 a 382.00 497.50 419.50 227.00 36.00 0.00 0.00 a 1820.57
1940 0.00 0.00 0.00 10.50 88.87 a 330.00 a 504.50 410.50 260.00 40.00 0.00 0.00 1644.37
1941 0.00 0.00 0.00 73.50 242.50 368.00 519.00 392.00 261.72 a 21.50 3.62 a 0.00 1881.84
1942 0.00 0.00 0.00 a 54.50 87.00 f 325.00 392.50 398.00 185.00 31.50 0.00 0.00 1386.50
1943 0.00 0.00 0.00 5.00 103.00 422.50 560.58 a 454.50 116.50 38.23 a 0.00 0.00 1700.32
1944 0.00 a 0.00 0.00 0.00 a 245.00 408.50 462.00 440.50 179.50 14.47 a 1.00 0.00 1750.97
1945 0.00 0.00 18.00 26.50 27.00 205.50 383.50 390.60 a 186.00 19.50 0.00 0.00 a 1256.60
1946 0.00 a 0.00 7.50 24.50 84.00 343.00 508.50 377.50 133.00 40.00 0.00 0.00 1518.00
1947 0.00 0.00 a 0.00 4.50 43.50 252.50 457.50 604.50 266.50 104.00 0.00 0.00 1733.00
1948 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 313.50 498.00 470.50 241.50 24.00 5.00 0.00 1552.50
1949 0.00 0.00 0.00 31.50 217.50 443.50 566.50 489.50 101.00 70.00 0.00 0.00 1919.50
1950 0.00 0.00 a 0.00 0.00 115.50 345.00 380.00 257.00 125.00 42.00 f 0.00 a 0.00 1222.50
1951 0.00 0.00 0.00 26.50 227.50 260.00 457.00 345.13 a 119.48 a 56.32 a 0.00 a 0.00 c 1491.93
1952 0.00 a 0.00 a 0.00 a 78.50 154.00 278.00 j 345.00 k 358.64 b 231.43 b 4.13 a 0.00 a 0.00 a 826.70
1953 0.00 c 0.00 a 0.00 1.15 d 148.00 374.00 443.30 a 455.50 199.00 110.00 3.50 0.00 a 1734.45
1954 0.00 0.00 0.00 4.14 a 73.50 414.00 507.50 376.50 127.50 8.00 0.00 0.00 1511.14
1955 0.00 0.00 0.00 40.00 206.50 323.50 617.50 561.50 165.50 66.13 a 0.00 q 0.00 1980.63
1956 0.00 0.00 0.00 0.00 118.83 a 430.00 372.50 377.00 123.50 60.45 a 24.50 0.00 a 1506.78
1957 0.00 0.00 0.00 44.50 82.15 a 306.21 a 533.00 376.50 133.00 16.50 0.00 0.00 1491.86
1958 0.00 a 0.00 0.00 9.50 75.00 147.00 370.50 361.00 160.50 34.00 0.00 0.00 1157.50
1959 0.00 0.00 a 0.00 1.50 191.50 342.00 401.50 517.50 228.50 10.00 0.00 0.00 1692.50
1960 0.00 0.00 0.00 37.00 122.00 236.00 388.00 443.00 239.00 42.00 0.00 0.00 1507.00
1961 0.00 0.00 0.00 3.00 78.50 320.00 454.50 479.00 221.00 59.00 0.00 0.00 1615.00
1962 0.00 0.00 0.00 23.00 229.00 270.00 366.50 355.50 119.00 74.50 0.00 0.00 1437.50
1963 0.00 0.00 0.00 43.00 84.50 370.50 504.00 354.00 181.00 162.50 0.00 z 0.00 1699.50
1964 0.00 0.00 0.00 29.00 207.70 a 323.00 518.50 291.00 148.50 40.00 8.50 0.00 1566.20
1965 0.00 0.00 0.00 4.50 182.00 241.00 339.00 313.00 60.00 46.00 0.00 0.00 a 1185.50
1966 0.00 0.00 3.00 2.00 70.00 346.00 564.00 333.50 191.50 23.00 0.00 0.00 1533.00
1967 0.00 0.00 2.00 13.50 68.00 313.00 417.50 310.50 161.00 40.00 0.00 b 0.00 1325.50
1968 0.00 0.00 1.50 25.50 51.50 301.00 454.00 399.50 161.50 86.50 0.00 0.00 1481.00
1969 0.00 0.00 0.00 19.66 a 157.50 153.00 428.50 485.50 174.00 50.00 0.00 0.00 1468.16
1970 0.00 0.00 0.00 58.00 144.00 413.00 547.00 436.50 199.00 33.50 0.00 0.00 1831.00
1971 0.00 0.00 0.00 22.50 67.00 446.50 384.40 a 333.00 210.50 99.00 0.00 0.00 1562.90
1972 0.00 0.00 0.00 8.00 236.50 272.50 444.00 407.50 129.00 14.00 0.00 0.00 1511.50
1973 0.00 0.00 0.00 39.00 64.50 392.50 485.50 0.00 z 186.50 110.00 0.00 0.00 1278.00
1974 0.00 0.00 0.00 39.00 83.00 222.50 559.50 359.50 61.00 26.00 4.00 0.00 1354.50
1975 0.00 0.00 0.00 0.00 a 219.00 333.50 549.00 400.00 104.50 55.50 12.50 0.00 1674.00
1976 0.00 0.00 0.00 50.00 105.00 413.50 510.50 435.50 154.80 e 38.00 0.00 0.00 1707.30
1977 0.00 0.00 2.50 97.00 354.00 317.00 539.92 a 275.00 163.00 4.28 b 3.50 0.00 1756.19
1978 0.00 0.00 0.00 6.00 210.00 292.24 a 441.00 443.00 280.00 11.22 b 0.00 z 0.00 1683.47
1979 0.00 0.00 0.00 25.00 60.50 281.00 483.50 368.50 189.00 12.18 c 0.00 z 0.00 a 1419.68
1980 0.00 a 0.00 0.00 46.50 229.50 308.50 513.50 438.50 136.00 17.00 0.00 0.00 1689.50
1981 0.00 0.00 0.00 b 11.00 96.50 329.00 472.00 447.00 147.50 9.30 a 2.00 0.00 1514.30
1982 0.00 0.00 0.00 21.00 247.50 0.00 z 0.00 z 376.50 162.50 29.50 0.00 0.00 837.00
1983 0.00 0.00 0.00 15.50 47.50 325.00 617.50 563.50 235.50 40.50 1.00 0.00 b 1846.00
1984 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 522.00 124.00 0.00 z 0.00 z 0.00 z 646.00
1985 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
1986 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 546.50 357.00 184.50 4.00 0.00 0.00 1092.00
1987 0.00 0.00 5.00 66.50 211.00 445.00 584.50 444.50 199.00 6.00 4.00 0.00 1965.50
1988 0.00 0.00 0.00 7.50 270.50 437.00 585.00 530.50 171.50 18.50 0.00 0.00 2020.50
1989 0.00 0.00 1.00 14.00 162.00 317.00 552.00 446.50 0.00 z 0.00 z 0.00 0.00 1492.50
1990 0.00 0.00 4.50 93.50 84.00 382.50 437.00 431.50 224.50 5.50 8.00 0.00 1671.00
1991 0.00 0.00 2.00 52.00 294.50 472.50 461.00 476.50 178.50 10.00 0.00 0.00 1947.00
1992 0.00 0.00 0.00 11.50 191.50 286.50 306.50 301.50 146.50 31.00 0.00 0.00 1275.00
1993 0.00 0.00 0.00 3.50 125.50 258.00 459.50 438.00 49.00 17.00 0.00 0.00 1350.50
1994 0.00 0.00 0.00 8.00 163.50 420.50 449.50 358.00 255.50 50.50 0.00 0.00 1705.50
1995 0.00 0.00 0.00 0.00 95.00 475.50 519.50 564.00 164.50 54.00 0.00 0.00 1872.50
1996 0.00 0.00 0.00 7.50 104.00 379.50 398.50 456.00 219.50 36.50 0.00 0.00 1601.50
1997 0.00 0.00 0.00 5.50 50.50 434.50 489.00 345.00 245.50 83.00 0.00 0.00 1653.00
1998 0.00 0.00 13.50 34.50 279.50 360.00 512.00 528.50 335.50 37.50 0.50 0.00 2101.50
1999 0.00 0.00 0.50 20.50 204.00 376.55 a 608.50 417.50 203.00 8.00 7.00 0.00 1845.55
2000 0.00 d 0.00 12.18 c 22.00 154.00 h 268.50 489.00 489.00 206.00 79.00 7.50 0.00 1573.18
2001 0.00 a 0.00 0.00 41.50 171.00 413.79 a 546.50 530.50 191.00 27.00 13.00 0.00 a 1934.29
2002 0.00 0.00 0.00 50.00 114.00 448.50 640.00 474.00 299.50 0.00 z 0.00 0.00 2026.00
2003 0.00 0.00 a 0.00 20.00 125.50 353.50 454.00 557.00 266.00 67.50 0.00 0.00 1843.50
2004 0.00 a 0.00 c 0.00 24.00 0.00 z 0.00 z 63.50 z 271.00 362.50 49.00 0.00 0.00 706.50
2005 0.00 0.00 3.00 72.00 133.00 491.00 558.00 464.50 331.00 87.00 0.00 0.00 2139.50
2006 0.00 0.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 495.50 152.50 0.00 z 0.00 0.00 648.00
2007 0.00 0.00 21.00 50.00 244.50 454.00 553.50 493.50 276.50 135.00 0.00 0.00 2228.00
2008 0.00 0.00 0.00 26.00 63.00 333.50 515.50 443.50 257.00 38.00 24.50 0.00 1701.00
2009 0.00 0.00 0.50 18.00 135.00 328.00 0.00 z 394.00 319.50 2.00 0.00 0.00 1197.00
2010 0.00 0.00 7.00 71.50 243.50 362.00 587.50 594.50 154.80 e 70.00 4.00 0.00 2094.80
2011 0.00 0.00 a 0.00 18.00 160.68 a 376.50 626.20 a 476.00 204.00 154.00 0.00 0.00 2015.38
2012 0.00 0.00 89.00 17.50 240.50 426.00 656.50 445.00 203.50 24.00 h 0.00 z 0.00 z 2078.00
Period of Record Statistics
MEAN 0.00 0.00 2.12 25.96 150.94 345.11 496.73 422.26 196.55 45.53 2.00 0.00 1677.25
S.D. 0.00 0.00 9.78 25.39 74.57 85.29 80.69 77.62 67.91 36.96 4.67 0.00 258.91
SKEW 0.00 0.00 7.81 1.47 0.37 -0.01 0.09 0.09 0.22 1.22 3.14 0.00 0.12
MAX 0.00 0.00 89.00 128.00 354.00 565.71 686.00 604.50 362.50 162.50 24.50 0.00 2279.20
MIN 0.00 0.00 0.00 0.00 20.50 147.00 306.50 257.00 49.00 0.00 0.00 0.00 1157.50
NO YRS 91 92 93 93 90 91 91 96 96 91 90 93 72