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 201205
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
1919 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 151.00 j 44.00 0.00 0.00 z 44.00
1920 0.00 z 0.00 z 0.00 c 0.00 e 202.07 d 403.33 c 236.00 q 362.00 f 350.89 b 100.00 n 0.00 z 0.00 z 956.30
1921 0.00 z 0.00 z 0.00 z 0.00 z 304.50 548.08 d 780.88 b 491.87 a 330.00 a 42.00 0.00 z 0.00 e 2497.32
1922 0.00 c 0.00 0.00 c 5.50 365.50 436.07 b 447.12 e 581.00 323.79 a 0.00 z 3.46 d 0.00 c 2162.44
1923 0.00 b 0.00 z 0.00 c 49.29 b 201.00 543.89 c 642.45 b 370.89 c 325.20 e 90.02 e 0.00 d 0.00 i 2222.73
1924 0.00 e 0.00 0.00 9.00 52.18 a 301.55 a 479.00 414.50 147.41 a 112.00 0.50 0.00 a 1516.15
1925 0.00 c 0.00 5.34 b 58.39 b 172.64 b 446.38 a 556.45 a 611.50 328.50 2.50 0.00 c 0.00 2181.71
1926 0.00 b 0.00 c 0.00 a 46.00 295.00 278.79 a 540.00 478.36 b 234.64 b 64.58 a 0.00 0.00 1937.38
1927 0.00 0.00 b 4.28 b 20.36 b 99.95 b 356.50 476.50 330.00 355.50 29.00 0.00 0.00 b 1672.08
1928 0.00 0.00 0.00 a 19.66 a 223.00 284.50 565.00 531.50 186.50 83.00 1.03 a 0.00 1894.19
1929 0.00 0.00 0.00 36.50 183.50 371.00 615.00 515.00 201.50 28.50 0.00 a 0.00 1951.00
1930 0.00 a 0.00 0.00 68.57 b 215.45 a 453.89 c 617.50 635.50 a 256.73 d 133.00 9.00 0.00 2389.64
1931 0.00 0.00 0.00 41.11 c 182.26 b 564.83 a 688.41 b 503.50 406.50 125.00 4.04 d 0.00 2515.65
1932 0.00 b 0.00 0.00 a 21.00 209.00 550.50 654.50 587.00 207.50 37.50 2.50 0.00 a 2269.50
1933 0.00 0.00 0.00 12.50 271.00 694.00 721.00 530.10 a 431.00 32.50 7.50 b 0.00 2699.60
1934 0.00 0.00 0.00 42.00 352.00 503.50 632.50 452.50 175.50 93.00 0.00 0.00 a 2251.00
1935 0.00 0.00 0.00 23.50 103.33 a 0.00 z 766.45 b 527.00 203.50 33.00 0.00 f 0.00 a 1656.78
1936 0.00 0.00 0.00 7.00 262.50 349.50 587.50 f 547.00 347.00 32.00 0.00 a 0.00 1545.00
1937 0.00 0.00 0.00 3.50 182.00 371.00 549.22 a 641.50 235.00 38.23 a 0.00 a 0.00 2020.45
1938 0.00 0.00 b 2.00 41.00 91.50 355.50 509.00 523.50 203.79 a 116.50 22.00 0.00 1864.79
1939 0.00 0.00 0.00 22.50 290.50 432.00 665.98 a 531.00 316.00 65.00 0.00 a 0.00 2322.98
1940 0.00 f 0.00 a 0.00 4.82 b 117.50 357.00 610.00 482.50 387.00 87.32 a 0.00 b 0.00 2046.14
1941 0.00 0.00 0.00 a 100.86 a 311.00 447.00 661.00 523.90 a 319.14 a 56.32 a 0.00 z 0.00 z 2419.22
1942 0.00 z 0.00 x 0.00 e 144.60 e 94.50 g 438.10 a 529.00 513.50 232.00 76.00 0.00 0.00 a 1933.20
1943 0.00 b 0.00 c 2.14 b 28.50 161.20 a 474.50 690.50 559.00 182.50 68.50 0.00 a 0.00 b 2166.84
1944 0.00 a 0.00 c 0.00 b 6.50 322.83 b 427.50 b 545.60 a 562.00 247.00 31.50 8.79 a 0.00 b 2151.72
1945 0.00 0.00 29.50 13.93 b 69.75 c 287.50 514.17 b 512.00 227.00 22.98 b 0.00 a 0.00 1676.83
1946 0.00 a 0.00 b 20.31 b 67.50 117.50 400.00 593.65 a 358.00 g 246.72 a 81.12 a 0.00 0.00 c 1526.80
1947 0.00 f 0.00 0.00 5.77 d 107.47 a 357.00 626.50 757.95 a 331.03 a 245.50 3.75 b 0.00 a 2434.97
1948 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 417.32 b 652.00 570.50 373.97 a 57.00 0.00 b 0.00 2070.79
1949 0.00 d 0.00 0.00 52.24 a 271.00 545.36 b 686.65 a 613.50 211.07 b 131.75 a 0.00 0.00 a 2511.57
1950 0.00 0.00 b 0.00 2.50 172.64 b 444.50 0.00 z 374.50 233.79 a 82.00 9.50 f 0.00 f 1309.93
1951 0.00 0.00 g 0.00 29.50 260.50 284.00 520.50 380.50 156.50 68.50 0.00 a 0.00 1700.00
1952 0.00 0.00 a 0.00 97.78 c 131.50 463.00 593.50 437.62 a 260.36 b 11.00 0.00 a 0.00 a 1994.75
1953 0.00 c 0.00 0.00 a 7.50 163.50 479.00 506.00 547.00 236.50 166.00 8.28 a 0.00 2113.78
1954 0.00 0.00 0.00 17.50 79.50 470.17 a 551.50 410.00 181.50 18.50 0.00 a 0.00 1728.67
1955 0.00 0.00 0.50 60.00 255.50 400.50 701.50 599.50 228.50 77.50 0.00 0.00 2323.50
1956 0.00 0.00 0.00 0.00 167.50 478.00 410.00 442.00 167.07 a 121.00 24.50 0.00 1810.07
1957 0.00 0.00 0.00 64.00 118.50 335.17 a 637.50 488.00 172.50 7.00 p 0.00 0.00 1815.67
1958 0.00 0.00 0.00 27.50 154.50 218.50 457.00 436.50 258.10 a 43.92 a 1.50 0.00 1597.52
1959 0.00 0.00 0.00 10.50 263.00 486.00 600.00 639.00 297.00 18.50 0.00 0.00 2314.00
1960 0.00 0.00 0.00 44.00 198.00 340.00 575.00 599.50 304.50 74.50 0.00 0.00 2135.50
1961 0.00 0.00 3.00 7.50 144.50 447.00 547.50 619.50 295.00 95.00 2.50 0.00 2161.50
1962 0.00 0.00 0.00 34.00 318.00 383.00 476.50 506.00 193.50 114.50 0.00 0.00 2025.50
1963 0.00 a 0.00 12.00 50.00 184.50 483.50 643.50 471.50 299.00 225.00 1.50 0.00 2370.50
1964 0.00 0.00 0.00 63.00 296.00 448.50 675.00 430.50 238.00 85.00 10.50 0.00 2246.50
1965 0.00 0.00 0.00 23.00 241.00 355.00 489.80 a 459.50 85.50 78.50 4.50 0.00 1736.80
1966 0.00 0.00 4.50 9.00 117.80 a 457.00 679.00 422.50 225.50 45.50 0.00 0.00 1960.80
1967 0.00 0.00 11.00 17.00 107.50 375.00 495.50 390.50 238.00 55.50 0.00 0.00 1690.00
1968 0.00 0.00 13.00 63.00 100.50 358.93 b 524.50 501.50 233.50 115.00 0.00 a 0.00 1909.93
1969 0.00 0.00 0.00 21.50 234.00 198.62 a 524.50 619.50 276.00 54.00 0.00 a 0.00 1928.12
1970 0.00 0.00 0.00 58.50 179.00 471.43 b 638.50 528.50 258.50 52.00 0.00 0.00 2186.43
1971 0.00 0.00 0.00 43.97 a 111.00 503.50 435.55 a 411.50 290.50 122.50 0.00 0.00 1918.52
1972 0.00 0.00 0.00 15.50 291.00 369.83 a 478.00 472.00 156.00 23.00 0.00 0.00 1805.33
1973 0.00 0.00 0.00 45.00 a 117.00 413.50 545.00 580.00 197.50 138.00 0.00 0.00 2036.00
1974 0.00 0.00 0.00 72.00 138.00 328.00 658.50 413.50 116.50 55.00 0.00 0.00 1781.50
1975 0.00 0.00 0.00 0.00 258.85 a 381.00 639.00 506.00 143.50 86.50 14.48 a 0.00 2029.33
1976 0.00 0.00 0.00 54.31 a 166.00 487.50 612.50 547.50 249.50 44.50 0.00 0.00 2161.81
1977 0.00 0.00 4.00 113.00 416.00 412.50 624.50 353.00 222.50 10.00 5.50 0.00 2161.00
1978 0.00 0.00 1.50 11.00 266.50 379.14 a 524.50 521.00 341.00 39.00 1.00 0.00 2084.64
1979 0.00 0.00 0.00 27.00 103.00 359.00 548.50 444.00 280.71 b 18.50 0.50 0.00 1781.21
1980 0.00 0.00 z 0.00 82.50 304.50 387.00 620.50 520.50 204.50 29.50 0.00 0.00 2149.00
1981 0.00 0.00 5.00 31.50 143.50 386.00 562.50 518.00 198.62 a 28.00 1.50 0.00 1874.62
1982 0.00 0.00 0.00 49.50 279.50 261.50 623.50 463.00 227.50 39.50 0.00 0.00 1944.00
1983 0.00 0.00 0.00 19.00 83.00 408.50 687.00 651.50 316.00 42.00 2.50 0.00 2209.50
1984 0.00 0.00 0.00 17.50 138.00 468.50 557.50 628.00 176.00 108.50 0.00 0.00 2094.00
1985 0.00 0.00 0.00 92.00 262.50 318.50 536.50 405.00 260.00 27.00 0.00 0.00 1901.50
1986 0.00 0.00 8.50 67.00 268.00 442.50 618.50 419.50 224.00 32.50 0.00 0.00 2080.50
1987 0.00 0.00 7.50 79.50 235.00 487.50 659.00 469.50 240.50 6.50 6.50 0.00 2191.50
1988 0.00 0.00 0.00 30.50 335.00 531.50 707.50 588.50 244.50 35.50 0.00 0.00 2473.00
1989 0.00 0.00 0.00 19.50 216.00 373.00 645.00 527.50 259.00 106.50 0.00 0.00 2146.50
1990 0.00 0.00 0.00 122.00 120.00 462.00 531.00 508.00 285.00 20.50 15.00 0.00 2063.50
1991 0.00 0.00 2.00 89.50 350.50 507.00 535.00 564.00 232.00 25.00 0.00 0.00 a 2305.00
1992 0.00 0.00 0.00 17.00 289.50 350.00 368.00 390.00 221.00 67.50 0.00 0.00 b 1703.00
1993 0.00 0.00 0.00 6.50 167.50 324.50 540.50 542.00 102.00 29.00 0.00 0.00 1712.00
1994 0.00 0.00 0.00 35.00 235.50 459.00 512.00 439.00 329.50 88.00 0.00 0.00 2098.00
1995 0.00 0.00 3.50 0.00 139.50 541.00 570.50 610.00 241.50 52.00 0.00 0.00 2158.00
1996 0.00 0.00 0.00 8.00 137.50 421.00 482.50 542.00 274.50 65.50 0.00 0.00 1931.00
1997 0.00 0.00 0.00 25.50 89.00 493.50 538.50 424.50 297.00 116.50 0.00 0.00 1984.50
1998 0.00 0.00 9.50 52.00 336.00 376.00 587.50 585.00 402.50 82.00 0.00 0.00 2430.50
1999 0.00 0.00 11.00 17.00 269.00 427.50 671.00 511.00 170.00 p 29.00 22.50 0.00 1958.00
2000 0.00 0.00 19.50 20.00 241.50 340.00 556.00 543.53 a 223.00 116.50 20.50 0.00 2080.53
2001 0.00 0.00 0.00 63.50 234.00 437.00 605.50 618.00 230.50 40.00 31.00 0.00 2259.50
2002 0.00 0.00 0.00 65.50 122.00 475.00 665.00 520.00 126.00 n 33.50 0.00 0.00 1881.00
2003 0.00 0.00 r 2.00 v 42.00 g 147.00 375.00 558.50 612.00 307.50 95.50 0.00 0.00 2095.50
2004 0.00 0.00 0.00 27.00 137.00 303.50 507.00 307.50 396.00 66.50 0.00 0.00 1744.50
2005 0.00 0.00 4.50 77.50 160.50 535.00 636.50 536.00 372.00 86.00 2.00 0.00 2410.00
2006 0.00 0.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 552.00 212.00 0.00 z 0.00 0.00 764.00
2007 0.00 0.00 23.50 73.50 305.50 516.00 623.00 534.50 325.00 117.50 0.00 0.00 2518.50
2008 0.00 0.00 0.00 24.50 83.00 366.00 558.50 497.00 279.00 43.00 26.00 0.00 1877.00
2009 0.00 0.00 0.00 35.50 164.00 383.50 425.00 443.50 391.50 5.00 0.00 0.00 1848.00
2010 0.00 0.00 12.00 71.50 258.50 394.50 0.00 z 648.00 188.50 84.00 4.80 e 0.00 c 1661.80
2011 0.00 0.00 c 0.00 j 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
2012 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
Period of Record Statistics
MEAN 0.00 0.00 2.52 38.63 201.64 415.26 581.60 512.01 256.42 67.22 3.10 0.00 2057.50
S.D. 0.00 0.00 5.65 30.99 83.06 83.70 81.78 83.54 72.34 44.97 6.67 0.00 251.61
SKEW 0.00 0.00 2.80 1.00 0.29 0.13 -0.07 -0.02 0.23 1.31 2.57 0.00 0.16
MAX 0.00 0.00 29.50 144.60 416.00 694.00 780.88 757.95 431.00 245.50 31.00 0.00 2699.60
MIN 0.00 0.00 0.00 0.00 52.18 198.62 368.00 307.50 85.50 2.50 0.00 0.00 1516.15
NO YRS 86 84 87 87 88 89 86 89 89 88 87 87 70