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
1908 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 0.00
1909 0.00 0.00 0.00 0.00 59.50 282.00 471.56 e 623.62 a 287.68 b 63.00 4.14 a 0.00 1791.49
1910 0.00 0.00 25.00 0.00 46.50 439.00 586.50 507.00 250.00 129.50 0.00 0.00 1983.50
1911 0.00 0.00 0.00 1.00 153.00 435.00 525.00 477.00 290.00 56.00 0.00 0.00 1937.00
1912 0.00 0.00 0.00 a 7.50 91.50 299.00 432.97 a 392.50 341.11 c 91.00 1.50 i 0.00 1655.58
1913 0.00 0.00 a 0.00 b 12.00 54.50 354.00 439.96 e 553.41 d 308.33 c 121.62 e 7.78 c 0.00 l 1851.60
1914 0.00 l 0.00 b 0.00 0.00 181.50 324.50 587.00 549.00 280.00 168.50 22.50 d 0.00 2113.00
1915 0.00 0.00 0.00 92.59 a 36.50 181.00 427.00 392.50 297.00 62.50 10.50 0.00 1499.59
1916 0.00 0.00 0.00 0.52 a 111.00 186.00 652.50 610.50 228.00 40.50 1.50 0.00 c 1830.52
1917 0.00 0.00 0.00 a 0.00 72.50 188.00 498.50 444.00 198.00 24.00 0.00 0.00 1425.00
1918 0.00 0.00 0.00 0.00 a 119.00 291.00 445.88 a 626.00 194.50 110.50 4.50 0.00 1791.38
1919 0.00 0.00 0.00 6.50 82.00 508.50 670.00 548.50 394.00 94.50 0.00 0.00 2304.00
1920 0.00 z 0.00 z 0.00 a 0.00 21.70 a 369.00 463.00 447.50 386.50 208.50 0.00 0.00 z 1896.20
1921 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
1922 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
1923 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
1924 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
1925 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 0.00
1926 0.00 0.00 1.00 26.50 g 109.00 209.50 423.00 463.50 226.50 44.00 0.00 z 0.00 z 1476.50
1927 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
1928 0.00 r 0.00 0.00 e 1.50 106.95 a 217.00 530.00 515.50 245.17 a 80.50 0.00 b 0.00 1696.62
1929 0.00 a 0.00 0.00 30.00 78.50 252.50 490.50 475.00 258.00 99.50 0.00 0.00 1684.00
1930 0.00 a 0.00 0.50 11.50 130.31 d 369.50 505.00 560.07 a 326.00 23.25 a 0.00 z 0.00 z 1926.13
1931 0.00 z 0.00 z 0.00 e 32.00 108.50 426.00 705.50 572.00 490.00 160.50 19.00 0.00 f 2513.50
1932 0.00 c 0.00 b 0.00 5.50 134.85 a 415.00 638.00 652.55 a 320.00 63.00 0.00 0.00 a 2228.90
1933 0.00 a 0.00 b 0.00 7.00 125.55 a 440.36 b 620.00 a 528.50 480.00 53.50 1.11 c 0.00 c 2256.02
1934 0.00 0.00 0.00 17.00 193.48 b 419.42 d 532.88 b 446.92 a 271.03 a 113.50 0.00 0.00 a 1994.24
1935 0.00 c 0.00 b 0.00 4.50 82.50 247.00 671.00 616.00 278.50 60.00 0.00 a 0.00 d 1959.50
1936 0.00 i 0.00 d 0.00 b 6.00 201.50 177.00 j 697.50 566.50 404.00 72.50 0.00 0.00 b 1948.00
1937 0.00 e 0.00 d 0.00 b 5.36 b 121.50 344.48 a 608.50 652.00 311.00 83.46 e 2.59 a 0.00 d 2128.89
1938 0.00 t 0.00 e 0.00 32.68 b 59.70 d 328.50 548.38 b 623.00 315.50 150.72 b 18.62 a 0.00 2077.11
1939 0.00 0.00 10.52 c 23.57 b 168.84 c 343.39 b 575.16 c 537.50 374.48 a 84.50 1.11 c 0.00 b 2119.08
1940 0.00 a 0.00 a 0.00 0.00 g 65.50 f 314.00 222.00 n 373.50 h 202.00 m 66.00 i 0.00 z 0.00 h 314.00
1941 0.00 d 0.00 d 0.00 e 54.64 b 164.82 a 381.00 591.50 571.29 c 317.50 104.00 0.50 0.00 z 2185.25
1942 0.00 g 0.00 d 0.00 e 65.19 d 103.85 a 372.00 577.00 557.00 319.00 117.91 c 1.80 e 0.00 f 2113.75
1943 0.00 e 0.00 d 10.33 d 15.58 d 86.44 e 382.80 e 614.26 d 590.79 e 214.20 e 104.00 g 0.00 d 0.00 e 1914.40
1944 0.00 e 0.00 d 0.00 d 0.00 e 152.13 d 390.00 d 470.50 f 611.39 d 331.15 d 98.37 e 10.38 d 0.00 1593.42
1945 0.00 b 0.00 21.00 10.50 60.00 304.50 484.78 b 586.00 299.50 98.00 0.00 b 0.00 b 1864.28
1946 0.00 0.00 c 26.83 e 55.96 d 79.80 d 315.60 e 547.09 d 485.67 a 267.00 102.30 a 0.50 0.00 1880.74
1947 0.00 0.00 0.00 0.00 52.50 198.50 590.55 a 624.50 354.31 a 210.28 a 15.54 b 0.00 b 2046.18
1948 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 372.50 573.00 601.29 b 468.50 45.50 7.00 0.00 2067.79
1949 0.00 0.00 a 0.00 37.24 a 142.50 431.50 683.00 660.50 241.50 127.50 1.50 0.00 a 2325.24
1950 0.00 b 0.00 0.00 3.50 75.50 349.00 451.00 440.50 303.50 96.50 11.90 a 0.00 b 1731.40
1951 0.00 a 0.00 0.00 20.00 173.60 a 273.89 c 553.00 456.00 233.50 76.00 0.00 0.00 1785.99
1952 0.00 a 0.00 0.00 89.00 127.00 383.50 563.00 524.00 283.50 36.34 b 2.50 0.00 2008.84
1953 0.00 0.00 0.00 17.00 103.33 a 394.00 591.50 645.00 299.50 135.50 14.50 0.00 2200.33
1954 0.00 0.00 0.00 27.93 a 89.50 351.21 a 566.78 a 550.80 c 337.50 106.95 a 0.00 b 0.00 2030.67
1955 0.00 0.00 0.00 53.00 175.50 354.00 665.00 728.50 a 331.07 b 82.09 d 0.00 0.00 b 2389.16
1956 0.00 0.00 0.00 0.00 99.50 380.69 a 455.18 a 528.79 e 196.80 e 96.10 a 19.50 0.00 a 1776.56
1957 0.00 0.00 0.00 a 61.50 104.00 305.17 a 576.50 564.95 b 183.50 k 35.50 i 0.00 e 0.00 f 1612.12
1958 0.00 j 0.00 0.00 47.00 126.00 248.79 a 499.62 a 528.07 b 287.07 a 60.00 11.00 0.00 d 1807.55
1959 0.00 c 0.00 0.00 l 6.00 e 127.50 f 431.00 497.55 a 634.50 319.00 42.00 0.00 0.00 1930.05
1960 0.00 0.00 0.00 b 19.50 54.00 276.50 248.50 n 559.07 b 370.50 63.00 0.00 0.00 d 1342.57
1961 0.00 0.00 f 0.00 7.00 68.95 b 381.11 c 185.50 t 326.50 m 344.00 78.00 0.00 0.00 879.06
1962 0.00 0.00 0.00 47.00 75.00 k 171.00 m 211.50 r 0.00 z 0.00 z 0.00 z 0.00 0.00 47.00
1963 0.00 a 0.00 5.00 22.00 97.81 b 402.50 589.00 a 492.26 b 287.59 a 275.79 b 0.50 0.00 2172.45
1964 0.00 0.00 z 0.00 20.36 b 233.50 406.00 595.00 470.50 279.00 70.00 34.00 0.00 2108.36
1965 0.00 0.00 0.00 a 10.50 134.50 318.50 0.00 z 502.50 245.50 84.22 a 5.00 0.00 1300.72
1966 0.00 0.00 0.00 6.00 129.68 a 476.50 682.50 552.50 290.56 c 55.05 b 0.00 0.00 2192.79
1967 0.00 0.00 1.50 15.50 66.50 355.50 498.50 434.50 293.50 100.00 0.00 0.00 1765.50
1968 0.00 0.00 9.00 15.00 76.00 336.50 530.00 535.50 358.20 e 47.50 f 1.50 0.00 1861.70
1969 0.00 0.00 0.00 12.00 141.50 207.50 560.67 b 658.50 264.50 i 83.00 0.00 0.00 1663.17
1970 0.00 0.00 0.00 38.00 128.00 383.50 671.50 594.50 308.50 64.50 0.00 g 0.00 2188.50
1971 0.00 0.00 0.00 6.00 83.50 436.50 535.50 493.00 323.40 e 160.00 0.00 f 0.00 2037.90
1972 0.00 0.00 0.00 b 2.50 47.50 l 229.50 456.50 463.00 221.00 36.50 0.00 0.00 1409.00
1973 0.00 0.00 0.00 10.50 34.10 a 389.00 550.00 0.00 z 0.00 z 0.00 z 0.00 0.00 983.60
1974 0.00 0.00 0.00 b 23.50 62.00 267.50 566.50 473.50 188.00 0.00 z 0.00 i 0.00 1581.00
1975 0.00 0.00 0.00 b 0.00 214.50 349.00 613.00 540.00 200.56 c 52.50 f 24.50 f 0.00 1917.06
1976 0.00 0.00 i 0.00 e 17.59 a 50.38 c 489.23 d 580.00 517.00 268.50 73.07 c 0.00 0.00 1995.76
1977 0.00 0.00 0.00 63.00 247.50 272.50 569.00 430.50 275.50 22.00 20.50 0.00 1900.50
1978 0.00 0.00 0.00 4.00 177.06 e 259.04 d 379.50 g 497.50 400.50 49.00 8.50 0.00 c 1395.60
1979 0.00 a 0.00 0.00 e 0.50 54.00 229.00 j 513.00 448.50 0.00 z 0.00 z 4.00 0.00 1020.00
1980 0.00 c 0.00 a 0.00 32.50 167.63 d 277.00 535.50 545.00 302.00 25.00 g 0.00 a 0.00 b 1859.63
1981 0.00 0.00 0.00 d 6.50 81.50 368.00 532.00 516.50 277.00 15.50 d 0.00 0.00 b 1797.00
1982 0.00 0.00 0.00 13.00 119.50 224.00 503.50 461.00 234.00 62.50 0.00 1.50 1619.00
1983 0.00 0.00 0.00 5.00 31.50 349.00 688.50 668.00 336.50 78.00 3.50 0.00 2160.00
1984 0.00 0.00 0.00 a 1.00 82.00 357.00 530.00 596.48 b 230.00 70.00 0.00 0.00 1866.48
1985 0.00 c 0.00 0.00 z 41.00 191.50 277.00 552.00 490.00 311.50 36.00 0.00 0.00 1899.00
1986 0.00 0.00 12.00 18.50 160.00 269.00 592.00 502.50 335.50 53.50 0.00 0.00 1943.00
1987 0.00 0.00 4.50 32.00 223.00 540.00 b 618.50 553.00 324.64 b 24.00 19.50 0.00 2339.14
1988 0.00 0.00 0.00 2.50 184.00 510.00 a 647.50 618.00 337.50 34.00 0.00 0.00 2333.50
1989 0.00 0.00 0.00 0.00 0.00 z 275.50 545.50 442.50 g 275.50 49.00 0.00 0.00 1145.50
1990 0.00 0.00 0.00 43.00 49.50 339.00 452.00 475.50 353.50 49.50 24.00 0.00 1786.00
1991 0.00 0.00 0.00 42.50 211.50 454.00 587.50 629.50 305.00 37.50 0.00 0.00 2267.50
1992 0.00 0.00 0.00 0.00 148.00 298.00 402.00 429.00 224.50 76.00 0.00 0.00 1577.50
1993 0.00 0.00 0.00 8.50 81.00 288.00 563.50 581.50 178.00 41.00 0.00 0.00 1741.50
1994 0.00 0.00 0.00 32.50 139.50 429.00 550.00 476.50 409.50 76.00 0.00 0.00 i 2113.00
1995 0.00 0.00 j 0.00 0.00 98.00 536.50 679.50 748.50 334.00 110.50 0.00 i 0.00 2507.00
1996 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
1997 0.00 0.00 0.00 12.50 31.50 431.50 524.50 471.00 320.50 128.00 5.50 0.00 1925.00
1998 0.00 0.00 19.50 13.50 302.50 421.00 602.50 615.00 436.00 68.50 0.00 o 4.00 2482.50
1999 0.00 e 0.00 h 4.00 11.25 b 193.50 425.19 d 712.47 b 410.50 f 252.22 c 35.28 b 18.50 r 0.00 f 1633.91
2000 0.00 e 0.00 j 0.00 s 4.00 g 46.00 r 391.15 d 501.88 b 541.00 263.65 d 107.50 k 12.50 o 0.00 d 1697.69
2001 0.00 e 0.00 z 0.00 m 13.50 p 179.50 387.50 583.00 624.65 a 267.69 d 70.00 g 8.50 t 0.00 d 2042.34
2002 0.00 0.00 0.00 59.00 68.00 418.50 727.00 572.50 86.50 t 55.50 0.00 o 0.00 n 1900.50
2003 0.00 0.00 0.00 q 34.50 56.50 252.50 518.50 566.00 282.00 60.00 0.00 0.00 1770.00
2004 0.00 0.00 0.00 34.50 63.50 275.00 466.50 380.00 358.00 58.00 2.50 0.00 1638.00
2005 0.00 0.00 0.00 9.00 79.00 452.00 595.50 607.00 407.00 108.50 3.50 0.00 2261.50
2006 0.00 0.00 0.00 24.00 132.00 359.00 665.00 574.00 251.50 50.00 4.00 0.00 2059.50
2007 0.00 0.00 14.00 24.50 123.00 400.00 523.50 576.50 354.50 161.50 0.00 0.00 2177.50
2008 0.00 0.00 0.00 5.50 54.50 358.00 520.00 526.50 323.50 55.50 15.00 0.00 1858.50
2009 0.00 0.00 0.00 14.50 84.50 302.50 416.50 437.50 311.50 4.50 2.00 0.00 1573.50
2010 0.00 0.00 3.50 35.50 206.00 402.00 621.00 645.50 234.00 85.00 1.50 0.00 2234.00
2011 0.00 0.00 0.00 i 0.00 z 0.00 z 0.00 z 395.00 n 613.00 265.00 84.50 0.00 0.00 962.50
2012 0.00 0.00 25.00 8.00 209.00 416.50 707.50 540.50 269.50 15.50 h 0.00 z 0.00 z 2176.00
Period of Record Statistics
MEAN 0.00 0.00 2.15 19.41 116.53 349.71 561.81 544.12 301.99 81.86 4.21 0.06 1962.49
S.D. 0.00 0.00 5.89 20.56 57.83 82.05 77.94 75.93 64.16 46.31 7.20 0.46 246.91
SKEW 0.00 0.00 2.99 1.42 0.67 -0.03 0.11 0.10 0.59 1.44 1.99 7.83 -0.12
MAX 0.00 0.00 26.83 92.59 302.50 540.00 727.00 748.50 490.00 275.79 34.00 4.00 2389.16
MIN 0.00 0.00 0.00 0.00 21.70 181.00 402.00 380.00 178.00 4.50 0.00 0.00 1425.00
NO YRS 88 87 90 91 89 93 89 91 90 84 82 86 49