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
1913 0.00 z 0.00 z 0.00 z 0.00 z 89.50 h 442.00 443.30 a 450.57 b 220.50 93.00 d 0.00 a 0.00 c 1649.37
1914 0.00 a 0.00 0.00 5.00 198.40 a 296.38 a 568.00 360.00 225.00 140.00 3.00 0.00 a 1795.78
1915 0.00 0.00 0.00 b 105.00 76.98 a 218.50 361.00 278.50 205.00 8.00 0.00 0.00 1252.98
1916 0.00 z 0.00 h 0.00 12.50 123.50 267.50 686.50 477.50 188.50 41.00 0.00 0.00 1797.00
1917 0.00 a 0.00 0.00 1.50 46.50 229.66 a 492.50 314.50 139.00 2.67 b 0.00 0.00 b 1226.33
1918 0.00 a 0.00 0.00 a 3.62 a 190.77 e 314.50 522.50 486.50 85.20 e 37.50 0.00 0.00 1640.59
1919 0.00 0.00 a 0.00 0.00 152.50 523.50 543.00 378.00 254.00 32.07 b 0.00 0.00 a 1883.07
1920 0.00 0.00 0.00 0.00 a 132.00 401.50 390.50 400.50 292.50 162.00 0.00 0.00 1779.00
1921 0.00 0.00 0.00 a 78.62 a 229.50 522.00 650.50 411.00 218.00 18.50 g 0.00 0.00 z 2109.62
1922 0.00 z 0.00 z 0.00 a 5.40 e 268.00 310.50 376.65 a 388.00 278.57 b 90.42 a 0.00 e 0.00 b 1717.54
1923 0.00 0.00 0.00 18.50 121.50 490.50 577.50 295.00 221.25 b 31.50 0.00 e 0.00 i 1755.75
1924 0.00 z 0.00 0.00 c 2.07 a 6.00 g 230.50 366.00 359.71 b 134.42 d 88.57 c 0.00 a 0.00 b 1181.27
1925 0.00 a 0.00 i 0.00 54.00 116.25 c 404.00 465.53 b 552.83 a 259.50 f 6.09 c 0.00 0.00 j 1598.71
1926 0.00 d 0.00 a 0.00 b 12.00 e 228.76 b 250.00 494.45 a 264.00 n 142.00 h 39.27 a 0.00 a 0.00 g 1024.48
1927 0.00 z 0.00 a 0.00 z 3.00 h 91.93 b 272.00 407.00 311.03 a 342.22 c 0.00 z 0.00 d 0.00 1424.19
1928 0.00 g 0.00 c 0.00 i 0.00 c 0.00 z 91.00 r 494.00 424.91 b 152.22 c 39.50 g 0.00 e 0.00 g 1071.14
1929 0.00 z 0.00 p 0.00 i 35.56 c 21.50 l 245.00 h 518.14 c 425.73 a 0.00 z 0.00 z 0.00 z 0.00 j 979.43
1930 0.00 b 0.00 f 0.00 d 28.85 d 202.03 b 317.50 g 527.55 c 483.17 b 166.00 g 65.50 p 15.58 d 0.00 r 1257.18
1931 0.00 z 0.00 a 0.00 d 44.50 i 12.00 p 326.00 f 584.19 b 386.90 e 222.50 p 0.00 z 0.50 f 0.00 z 971.09
1932 0.00 n 0.00 g 0.00 f 3.00 m 90.79 c 421.50 473.55 b 407.17 e 8.50 p 10.16 b 0.00 c 0.00 z 1403.17
1933 0.00 a 0.00 k 0.00 d 1.07 b 20.50 n 546.21 a 483.50 f 301.50 214.50 i 11.50 l 0.00 z 0.00 d 848.78
1934 0.00 n 0.00 c 0.00 z 0.00 z 145.50 o 525.50 601.40 a 378.00 210.00 e 77.50 c 0.00 l 0.00 g 1792.40
1935 0.00 z 0.00 d 0.00 b 39.64 b 79.00 277.00 696.00 578.67 d 204.00 e 6.50 r 0.00 g 0.00 b 1874.31
1936 0.00 g 0.00 c 0.00 o 0.00 h 220.44 d 316.07 b 490.50 f 464.00 353.28 a 13.00 l 0.00 i 0.00 d 1353.79
1937 0.00 c 0.00 e 0.00 d 2.00 194.27 a 288.50 g 621.03 a 522.50 g 239.44 c 54.54 d 0.00 m 0.00 o 1111.28
1938 0.00 b 0.00 c 3.21 b 52.50 g 141.50 326.90 a 414.50 h 550.25 c 221.50 118.00 22.00 0.00 1383.35
1939 0.00 0.00 0.00 26.50 252.50 379.00 574.00 488.77 a 280.50 52.50 0.00 0.00 a 2053.77
1940 0.00 a 0.00 0.00 12.50 70.00 319.00 540.00 426.50 287.00 60.00 0.00 d 0.00 1715.00
1941 0.00 d 0.00 b 0.00 91.03 a 227.52 c 0.00 z 0.00 z 0.00 z 137.00 n 19.24 b 6.72 a 0.00 k 344.52
1942 0.00 0.00 0.00 j 96.96 b 130.50 398.50 487.39 d 471.72 a 251.11 c 81.63 a 0.00 e 0.00 d 1917.81
1943 0.00 a 0.00 b 0.00 b 16.00 91.34 c 456.43 b 518.50 f 545.00 154.00 80.71 b 0.00 0.00 j 1343.47
1944 0.00 g 0.00 j 0.00 v 0.00 z 342.15 d 266.00 h 0.00 z 0.00 z 0.00 z 0.00 z 1.50 o 0.00 342.15
1945 0.00 0.00 34.50 36.50 0.00 z 251.50 h 508.92 a 405.50 g 241.00 35.50 0.00 0.00 z 856.42
1946 0.00 0.00 b 12.00 51.00 134.00 382.76 a 536.00 388.50 215.77 d 98.17 a 0.00 0.00 1818.19
1947 0.00 0.00 0.00 a 13.93 b 48.00 i 321.00 549.73 a 723.00 311.38 a 76.00 m 0.00 a 0.00 q 1919.04
1948 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 381.00 557.50 571.50 370.00 39.50 3.00 0.00 1922.50
1949 0.00 0.00 0.00 a 50.50 193.00 515.50 576.00 536.50 125.00 77.50 0.00 0.00 2074.00
1950 0.00 0.00 0.00 0.00 115.50 383.00 425.50 335.00 192.00 95.00 0.00 0.00 1546.00
1951 0.00 0.00 0.00 19.50 250.50 284.50 484.50 334.00 116.38 a 44.50 0.00 0.00 1533.88
1952 0.00 0.00 0.00 90.50 132.50 396.00 543.00 405.00 241.55 a 4.50 0.00 a 0.00 1813.05
1953 0.00 0.00 0.00 5.00 155.00 407.50 482.00 519.50 227.68 b 154.50 7.50 0.00 1958.68
1954 0.00 0.00 a 0.00 a 12.50 98.17 a 436.00 504.00 378.00 137.59 a 20.50 0.00 0.00 1586.75
1955 0.00 0.00 0.00 61.50 247.48 a 369.50 653.00 561.50 184.04 d 56.50 i 0.00 0.00 z 2077.02
1956 0.00 0.00 0.00 0.00 141.05 a 444.00 365.50 407.50 131.38 a 108.00 29.50 0.00 1626.93
1957 0.00 0.00 0.00 77.50 124.00 344.00 556.00 418.50 157.50 20.50 0.00 0.00 1698.00
1958 0.00 0.00 0.00 37.00 122.97 a 217.50 447.00 434.50 215.50 45.47 a 0.00 0.00 1519.93
1959 0.00 0.00 a 0.00 7.24 a 253.50 417.50 497.50 578.50 262.00 17.50 0.00 0.00 a 2033.74
1960 0.00 0.00 0.00 27.00 169.50 284.00 454.50 501.50 243.50 55.80 a 0.00 a 0.00 1735.80
1961 0.00 0.00 0.00 2.50 105.50 386.00 477.50 502.00 240.00 78.50 0.00 0.00 1792.00
1962 0.00 0.00 0.00 33.50 279.00 a 351.50 424.00 432.50 141.00 100.48 b 0.00 a 0.00 1761.98
1963 0.00 0.00 0.00 38.28 a 130.50 446.00 564.00 394.50 0.00 z 206.00 0.00 0.00 a 1779.28
1964 0.00 0.00 0.00 40.00 261.00 396.50 588.50 353.50 194.50 57.00 15.00 0.00 1906.00
1965 0.00 0.00 0.00 13.50 228.88 a 334.00 415.50 418.00 112.00 67.00 2.50 0.00 1591.38
1966 0.00 0.00 0.50 0.00 108.00 443.50 631.00 392.00 222.50 33.00 0.00 0.00 1830.50
1967 0.00 0.00 4.50 11.00 74.50 371.00 437.00 328.00 222.00 52.50 0.00 0.00 1500.50
1968 0.00 0.00 0.00 29.50 91.00 342.50 483.00 459.50 233.00 122.45 a 0.00 0.00 1760.95
1969 0.00 0.00 0.00 15.50 214.00 163.45 a 485.67 a 551.00 220.00 51.00 0.00 0.00 1700.61
1970 0.00 0.00 0.00 75.50 174.00 449.50 595.00 486.00 254.00 53.50 0.00 0.00 2087.50
1971 0.00 0.00 0.00 17.00 77.00 494.00 388.02 a 365.50 263.50 120.50 0.00 0.00 1725.52
1972 0.00 0.00 0.00 a 7.00 301.00 333.50 464.50 454.00 170.50 29.50 0.00 0.00 1760.00
1973 0.00 0.00 0.00 39.00 90.50 417.50 517.50 534.50 205.00 148.50 0.00 0.00 1952.50
1974 0.00 0.00 0.00 60.00 113.50 272.50 599.00 405.50 98.00 55.00 3.10 a 0.00 1606.60
1975 0.00 0.00 0.00 0.00 273.00 382.50 580.50 465.00 117.00 88.50 16.50 0.00 1923.00
1976 0.00 0.00 0.00 51.00 142.50 474.00 530.00 478.00 207.00 40.50 0.00 0.00 1923.00
1977 0.00 0.00 2.50 113.50 437.00 316.50 578.50 303.50 176.00 12.50 7.76 a 0.00 1947.76
1978 0.00 0.00 0.00 a 2.50 262.00 350.00 446.50 493.50 311.00 26.00 1.00 0.00 1892.50
1979 0.00 0.00 0.00 a 12.50 91.50 316.50 514.00 403.53 b 241.50 22.73 a 0.00 0.00 1602.27
1980 0.00 0.00 0.00 74.50 272.80 a 319.50 542.50 a 459.50 181.00 27.00 0.00 0.00 1876.80
1981 0.00 0.00 1.50 18.50 128.00 360.52 a 497.50 495.00 167.50 17.50 0.00 0.00 1686.02
1982 0.00 0.00 0.00 22.00 300.00 185.00 559.50 386.00 177.00 36.00 1.50 0.00 1667.00
1983 0.00 0.00 0.00 14.50 0.00 z 374.50 663.50 568.00 267.50 44.00 0.00 0.00 1932.00
1984 0.00 0.00 0.00 20.00 114.00 418.00 478.00 530.00 161.50 80.50 0.00 0.00 a 1802.00
1985 0.00 0.00 0.00 b 93.00 217.50 264.00 462.50 365.00 240.50 18.00 0.00 0.00 1660.50
1986 0.00 a 0.00 4.50 68.00 264.50 349.00 571.50 336.00 200.50 29.00 0.00 0.00 1823.00
1987 0.00 0.00 5.50 78.00 229.00 469.00 583.00 439.00 256.50 3.50 5.00 0.00 2068.50
1988 0.00 0.00 a 0.00 b 8.50 306.00 477.50 623.50 0.00 z 172.24 a 3.00 0.00 0.00 1590.74
1989 0.00 a 0.00 0.00 9.50 164.00 290.50 529.50 414.50 171.50 61.00 0.00 0.00 1640.50
1990 0.00 0.00 0.00 111.50 67.50 357.00 373.50 435.50 149.00 5.50 7.00 0.00 z 1506.50
1991 0.00 z 0.00 0.00 42.50 0.00 x 458.00 451.50 505.00 163.00 6.50 0.00 0.00 1626.50
1992 0.00 0.00 0.00 11.00 207.50 258.50 266.50 332.00 156.00 37.00 0.00 0.00 1268.50
1993 0.00 0.00 0.00 2.00 123.50 247.50 472.50 448.00 50.00 11.50 0.00 0.00 1355.00
1994 0.00 0.00 0.00 12.00 178.50 376.00 407.50 361.50 234.50 40.00 0.00 0.00 1610.00
1995 0.00 0.00 0.50 0.00 61.50 504.00 496.00 559.50 176.50 49.00 0.00 0.00 1847.00
1996 0.00 0.00 a 0.00 1.50 105.00 377.00 350.00 405.50 172.50 18.08 a 0.00 0.00 1429.58
1997 0.00 0.00 0.00 4.00 30.00 425.50 441.50 319.00 211.00 88.00 0.00 0.00 1519.00
1998 0.00 a 0.00 1.00 29.50 300.00 375.50 482.50 514.00 331.00 31.50 0.00 0.00 a 2065.00
1999 0.00 a 0.00 2.00 21.00 253.50 395.50 599.00 407.50 193.50 5.00 6.50 0.00 1883.50
2000 0.00 0.00 5.00 15.00 212.50 289.50 466.50 449.00 180.00 47.53 a 11.50 0.00 a 1676.53
2001 0.00 0.00 0.00 40.50 144.50 417.50 509.50 541.00 195.00 a 26.50 8.00 0.00 1882.50
2002 0.00 0.00 0.00 41.50 116.00 436.50 639.00 471.50 302.50 17.00 0.00 0.00 2024.00
2003 0.00 0.00 0.00 27.00 98.50 352.00 478.50 554.50 276.00 76.95 c 0.00 0.00 1863.45
2004 0.00 0.00 b 0.00 19.14 a 81.50 258.50 442.50 289.00 344.50 39.00 0.00 0.00 a 1474.14
2005 0.00 0.00 3.00 61.00 117.00 518.50 565.50 457.50 322.00 80.50 0.00 e 0.00 2125.00
2006 0.00 0.00 0.00 51.00 189.00 365.00 595.00 446.00 129.00 28.50 0.00 0.00 1803.50
2007 0.00 a 0.00 l 13.43 a 49.00 254.50 451.00 520.50 497.50 285.50 129.50 0.00 0.00 2200.93
2008 0.00 0.00 0.00 21.00 60.50 329.50 502.00 442.00 269.00 35.50 21.50 0.00 1681.00
2009 0.00 0.00 0.00 16.00 99.00 314.50 282.50 400.50 313.50 0.00 0.00 0.00 1426.00
2010 0.00 0.00 a 4.50 49.14 a 255.50 352.50 457.50 f 568.50 117.50 46.50 5.50 0.00 1399.64
2011 0.00 c 0.00 a 0.00 7.50 137.50 333.21 b 646.02 c 480.00 211.61 b 137.90 b 0.00 0.00 1953.74
2012 0.00 0.00 a 82.50 10.00 229.50 405.52 a 631.00 409.41 b 171.21 a 15.00 i 0.00 z 0.00 z 1939.14
Period of Record Statistics
MEAN 0.00 0.00 2.01 30.21 169.64 368.15 510.24 440.38 212.31 55.00 2.19 0.00 1744.81
S.D. 0.00 0.00 9.54 29.64 79.52 84.05 86.53 82.84 65.10 42.84 5.44 0.00 212.23
SKEW 0.00 0.00 7.25 1.12 0.61 -0.04 -0.27 0.33 0.18 1.10 3.04 0.00 -0.41
MAX 0.00 0.00 82.50 113.50 437.00 546.21 696.00 723.00 370.00 206.00 29.50 0.00 2125.00
MIN 0.00 0.00 0.00 0.00 30.00 163.45 266.50 278.50 50.00 0.00 0.00 0.00 1226.33
NO YRS 85 89 90 91 88 92 93 94 90 87 91 82 64