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
1893 0.00 0.00 0.00 a 16.50 150.50 529.50 644.50 503.00 343.50 114.00 9.00 0.00 2310.50
1894 0.00 0.00 14.50 98.50 233.50 599.00 738.00 661.50 381.00 60.50 0.00 0.00 2786.50
1895 0.00 0.00 1.00 103.00 321.00 551.00 641.00 639.50 488.50 30.00 18.50 0.00 2793.50
1896 0.00 0.00 0.00 178.00 423.50 513.50 629.50 594.50 205.00 56.50 7.50 0.00 2608.00
1897 0.00 0.00 1.00 54.00 202.50 465.00 694.00 473.00 504.00 207.00 1.50 0.00 2602.00
1898 0.00 0.00 0.00 29.00 248.00 559.50 682.50 558.50 387.00 77.00 6.50 0.00 2548.00
1899 0.00 0.00 0.00 133.50 252.50 492.00 646.00 645.00 305.50 189.50 8.50 0.00 2672.50
1900 0.00 0.00 0.00 133.00 337.50 495.50 599.50 762.00 357.50 223.50 1.50 0.00 2910.00
1901 0.00 0.00 0.00 101.00 271.50 550.50 804.00 626.50 310.50 120.50 0.00 0.00 2784.50
1902 0.00 0.00 0.00 36.50 304.32 a 333.50 600.50 470.50 247.50 84.22 a 28.50 0.00 2105.53
1903 0.00 0.00 10.50 31.50 300.00 364.50 568.50 437.50 259.14 a 68.50 12.00 0.00 2052.14
1904 0.00 0.00 0.00 34.50 231.50 436.00 555.50 435.00 347.50 112.50 13.50 0.00 2166.00
1905 0.00 0.00 22.00 54.50 183.50 476.00 587.00 612.00 398.00 126.50 0.00 0.00 2459.50
1906 0.00 0.00 0.00 112.00 292.00 496.50 623.50 661.00 463.00 111.00 12.50 0.00 2771.50
1907 0.00 a 0.00 24.50 2.00 91.50 431.00 626.50 533.50 286.00 70.50 0.00 0.00 2065.50
1908 0.00 0.00 0.00 78.50 301.50 423.50 648.50 552.50 549.00 124.50 5.50 0.00 2683.50
1909 0.00 0.00 0.00 2.50 258.00 493.50 643.50 726.50 298.00 116.00 27.00 0.00 2565.00
1910 0.00 a 0.00 111.50 172.00 149.00 623.00 791.50 662.00 307.00 188.00 0.00 0.00 3004.00
1911 0.00 0.00 18.50 66.00 467.50 670.50 707.00 542.00 379.00 78.50 0.00 0.00 2929.00
1912 0.00 0.00 0.00 60.50 301.50 463.00 656.50 544.50 388.50 110.50 11.00 0.00 2536.00
1913 0.00 0.00 0.00 111.00 239.00 586.50 668.00 643.00 341.50 116.00 8.00 0.00 2713.00
1914 0.00 b 0.00 0.00 e 86.00 301.50 475.50 658.00 569.37 a 330.50 194.00 9.50 0.00 2624.37
1915 0.00 0.00 0.00 211.50 109.00 338.50 507.50 375.50 335.00 95.50 18.00 0.00 1990.50
1916 0.00 0.00 0.00 21.00 221.00 323.28 a 820.47 a 665.00 306.35 d 132.50 5.69 a 0.00 2495.28
1917 0.00 0.00 0.00 37.50 139.50 350.50 651.00 481.00 253.50 16.02 a 3.00 0.00 1932.02
1918 0.00 a 0.00 20.50 3.00 292.00 411.00 584.50 618.50 160.00 146.00 17.59 a 0.00 2253.09
1919 0.00 0.00 a 1.00 41.38 a 191.17 a 609.50 745.00 163.50 u 433.50 96.50 0.00 0.00 2118.05
1920 0.00 0.00 2.50 12.50 0.00 z 0.00 z 558.50 f 656.50 0.00 z 0.00 z 0.00 z 0.00 z 671.50
1921 0.00 z 0.00 o 16.65 d 135.50 348.00 628.00 0.00 z 584.72 b 399.50 59.50 0.00 0.00 d 2171.87
1922 0.00 0.00 b 1.55 a 20.00 364.00 504.50 533.00 404.00 j 386.50 153.00 8.50 0.00 1971.05
1923 0.00 0.00 0.00 51.00 251.50 562.50 b 331.50 q 534.15 e 311.25 b 63.50 0.00 0.00 b 1773.90
1924 0.00 0.00 0.00 40.00 52.00 346.80 e 510.00 505.50 171.35 d 175.50 3.00 e 0.00 1804.15
1925 0.00 0.00 1.50 108.62 a 178.50 k 363.50 h 571.43 a 551.59 b 437.50 24.00 0.00 e 0.00 1694.64
1926 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
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 z 0.00 18.50 26.50 337.50 424.00 752.00 640.67 a 304.00 163.00 0.00 0.00 2666.17
1929 0.00 a 0.00 0.00 93.10 a 193.00 457.50 703.91 b 592.00 312.50 74.92 a 0.00 b 0.00 2426.93
1930 0.00 6.74 a 7.00 86.38 a 277.00 521.67 c 597.50 h 726.00 417.00 134.33 a 37.50 0.00 a 2213.62
1931 0.00 0.00 a 0.00 a 112.76 a 226.82 a 697.78 c 847.50 639.38 c 572.68 b 148.28 a 16.50 0.00 3261.69
1932 0.00 a 0.00 a 0.00 30.00 306.90 a 610.34 a 765.50 661.00 290.00 67.00 0.50 0.00 a 2731.24
1933 0.00 0.00 c 0.00 53.50 311.60 b 777.00 750.00 600.88 a 499.14 a 78.50 15.50 0.00 a 3086.12
1934 0.00 b 0.00 c 0.00 a 57.00 549.73 a 745.50 813.00 610.50 307.50 179.00 12.41 a 0.00 3274.65
1935 0.00 a 0.00 1.55 a 57.00 178.25 a 437.50 842.50 670.00 377.50 110.64 b 0.00 0.00 a 2674.94
1936 0.00 0.00 6.50 39.83 a 404.55 a 477.50 902.50 744.00 406.00 75.43 a 0.00 0.00 3056.31
1937 0.00 0.00 0.00 b 40.50 299.00 490.50 781.00 801.00 409.50 71.50 2.00 0.00 2895.00
1938 0.00 0.00 24.00 98.50 213.38 a 512.14 b 696.00 704.00 337.20 e 248.00 41.50 0.00 2874.73
1939 0.00 0.00 35.00 111.72 a 390.50 593.33 c 712.00 0.00 z 445.00 72.50 0.00 0.00 z 2360.06
1940 0.00 a 0.00 0.00 40.00 222.88 b 577.50 772.42 a 607.71 b 413.50 135.50 9.50 0.00 a 2779.00
1941 0.00 d 0.00 0.00 175.34 a 411.50 550.50 733.50 701.50 435.00 114.50 17.50 0.00 a 3139.34
1942 0.00 0.00 3.74 b 143.50 219.00 504.31 a 661.00 606.50 343.00 165.85 a 5.00 0.00 2651.90
1943 0.00 g 0.00 b 17.00 41.38 a 170.50 626.00 699.50 645.50 208.00 125.50 0.00 0.00 2533.38
1944 0.00 0.00 0.00 12.00 383.00 572.50 620.00 646.50 359.00 76.00 29.50 0.00 2698.50
1945 0.00 0.00 58.50 56.00 136.50 365.50 581.50 592.00 336.00 66.50 17.00 0.00 2209.50
1946 0.00 0.00 40.50 112.50 211.00 489.00 677.00 541.50 338.00 159.00 0.00 0.00 2568.50
1947 0.00 0.00 0.00 21.50 134.00 428.50 646.50 863.00 450.50 321.50 1.50 0.00 2867.00
1948 0.00 0.00 7.50 128.50 233.00 528.00 759.00 728.50 551.00 84.50 21.00 0.00 3041.00
1949 0.00 a 0.00 0.00 26.00 m 0.00 z 0.00 z 0.00 z 725.50 232.50 226.82 a 17.50 0.00 1202.32
1950 0.00 b 0.00 0.00 13.50 235.17 b 497.50 562.50 488.50 332.00 184.50 18.62 a 0.00 a 2332.29
1951 0.00 0.00 b 0.00 b 37.50 364.77 a 414.00 616.38 a 525.50 276.43 b 124.52 a 0.00 0.00 2359.10
1952 0.00 0.00 a 0.00 145.00 246.50 566.00 723.00 529.07 a 348.50 44.50 8.57 b 0.00 a 2611.14
1953 0.00 0.00 4.43 c 20.17 a 227.16 b 540.00 b 641.38 b 644.00 363.10 a 235.50 27.50 0.00 2703.24
1954 0.00 c 0.00 0.00 85.34 a 124.00 a 591.00 682.53 b 565.50 348.00 94.50 5.69 a 0.00 2496.57
1955 0.00 0.00 0.00 a 126.96 b 337.90 a 461.50 832.00 794.50 390.50 120.79 b 0.00 0.00 3064.16
1956 0.00 0.00 0.00 15.54 b 231.00 615.00 569.88 a 597.00 246.96 b 162.50 31.50 0.00 b 2469.38
1957 0.00 0.00 0.00 127.00 200.50 492.50 729.00 571.43 a 273.00 67.00 0.00 0.00 a 2460.43
1958 0.00 b 0.00 c 0.00 g 65.40 e 200.00 g 297.50 f 480.50 f 191.00 w 185.50 m 135.00 f 9.00 e 0.00 d 74.40
1959 0.00 a 0.00 0.00 a 51.00 382.00 548.50 616.50 700.50 363.00 32.50 0.00 0.00 2694.00
1960 0.00 0.00 0.00 119.00 258.50 402.50 580.50 622.00 394.00 97.00 2.00 0.00 2475.50
1961 0.00 0.00 5.50 9.50 189.50 504.50 606.50 597.50 335.50 142.00 6.00 0.00 2396.50
1962 0.00 0.00 1.50 88.00 400.00 474.50 523.50 559.00 231.00 172.00 0.00 0.50 2450.00
1963 0.00 0.00 22.00 82.00 208.50 584.00 671.00 530.50 338.00 322.00 4.50 0.00 2762.50
1964 0.00 0.00 0.00 73.50 406.00 539.00 738.50 529.00 307.50 66.00 62.00 0.00 2721.50
1965 0.00 0.00 0.00 26.50 372.00 461.00 0.00 z 550.50 259.00 98.00 10.50 0.00 1777.50
1966 0.00 0.00 12.00 13.00 177.00 519.50 697.50 520.50 284.50 97.50 3.50 0.00 2325.00
1967 0.00 0.00 28.00 54.50 174.50 514.00 558.50 481.00 278.00 105.50 3.00 0.00 2197.00
1968 0.00 0.00 29.00 81.00 160.00 479.00 610.50 611.50 291.00 155.50 7.50 0.00 2425.00
1969 0.00 0.00 0.00 54.50 288.50 302.00 630.50 615.50 311.50 113.50 0.00 0.00 2316.00
1970 0.00 0.00 0.00 113.00 300.00 530.50 671.50 565.00 331.00 118.00 0.00 0.00 2629.00
1971 0.00 0.00 3.00 80.00 175.00 615.50 520.00 519.50 397.50 218.50 7.50 0.00 a 2536.50
1972 0.00 0.00 0.00 29.00 339.00 460.50 563.50 603.00 321.50 65.00 0.00 0.00 2381.50
1973 0.00 0.00 9.30 a 42.50 141.05 a 539.50 675.00 643.50 297.00 210.00 0.00 0.00 2557.85
1974 0.00 0.00 0.00 107.00 188.50 397.00 718.00 519.50 219.50 95.50 10.00 0.00 a 2255.00
1975 0.00 0.00 0.00 25.00 334.00 502.50 677.50 623.00 213.00 162.00 36.21 a 0.00 2573.21
1976 0.00 b 0.00 15.50 80.50 205.50 551.50 678.00 572.50 296.50 91.00 0.00 0.00 2491.00
1977 0.00 0.00 22.50 231.50 485.50 514.50 714.50 476.50 298.50 22.00 8.50 0.00 2774.00
1978 0.00 0.00 7.00 14.00 279.00 453.00 613.50 574.10 e 433.00 33.00 11.50 0.00 2418.10
1979 0.00 0.00 0.00 0.00 z 211.32 a 461.90 a 591.00 421.50 h 248.00 j 53.00 k 0.00 l 0.00 n 1264.21
1980 0.00 m 0.00 i 0.00 b 93.10 a 304.00 471.67 c 441.50 j 592.00 310.50 45.50 0.00 0.00 k 1816.77
1981 0.00 j 0.00 22.22 a 61.00 f 188.00 494.48 a 600.76 b 552.50 239.00 31.00 5.50 0.00 2133.46
1982 0.00 0.00 0.00 20.00 299.00 337.50 647.50 485.00 250.00 68.00 2.00 5.00 2114.00
1983 0.00 0.00 5.00 18.50 73.00 452.00 697.50 660.00 313.00 76.50 10.86 a 0.00 2306.36
1984 0.00 0.00 0.00 30.50 118.00 480.00 561.00 614.00 244.00 108.50 0.00 0.00 2156.00
1985 0.00 0.00 5.50 170.00 323.00 368.00 601.50 440.50 323.00 53.50 0.00 0.00 2285.00
1986 0.00 0.00 44.43 a 107.00 255.00 462.00 631.50 387.50 268.50 40.00 0.00 0.00 2195.93
1987 0.00 0.00 11.50 104.00 324.00 552.50 722.00 509.00 292.50 27.00 24.00 0.00 2566.50
1988 0.00 0.00 b 0.00 39.00 301.00 552.50 0.00 z 701.50 0.00 z 45.50 0.00 0.00 1639.50
1989 0.00 0.00 21.70 a 46.00 222.00 417.50 672.50 549.50 244.50 143.50 1.00 0.00 2318.20
1990 0.00 0.00 15.50 123.00 147.50 476.00 0.00 z 540.50 346.50 85.50 8.50 0.00 1743.00
1991 0.00 0.00 14.50 95.50 357.50 572.50 583.50 545.50 253.50 54.00 0.00 0.00 2476.50
1992 0.00 0.00 0.00 24.00 230.00 353.00 404.50 366.00 213.50 75.50 0.00 0.00 1666.50
1993 0.00 a 0.00 0.00 15.00 192.50 370.50 525.00 540.50 122.00 57.50 0.00 0.00 1823.00
1994 0.00 0.00 3.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 78.50 4.00 0.00 86.00
1995 0.00 0.00 13.50 0.00 140.50 541.00 644.50 724.00 259.50 69.50 0.00 0.00 2392.50
1996 0.00 0.00 0.00 22.50 136.00 448.00 500.50 512.50 249.00 77.50 0.00 0.00 1946.00
1997 0.00 0.00 1.50 25.50 85.50 483.00 560.50 424.00 269.50 140.50 0.00 0.00 1990.00
1998 0.00 0.00 39.50 44.50 336.50 420.00 581.00 567.50 392.00 62.00 10.00 4.00 2457.00
1999 0.00 0.00 14.00 38.50 236.50 472.00 716.00 506.00 233.50 52.50 15.50 0.00 a 2284.50
2000 0.00 1.50 24.50 33.00 245.00 389.00 561.00 578.50 290.00 128.00 20.50 0.00 2271.00
2001 0.00 0.00 0.00 106.50 241.00 426.00 626.20 a 605.00 230.00 51.50 32.50 5.50 2324.20
2002 0.00 0.00 0.00 99.00 167.00 519.00 688.50 546.50 356.00 45.50 0.00 0.00 2421.50
2003 0.00 0.00 7.50 64.00 161.00 412.00 599.00 646.00 310.50 101.50 0.00 0.00 2301.50
2004 0.00 0.00 16.00 76.50 237.00 390.00 538.50 399.00 340.00 h 0.00 z 0.00 z 0.00 z 1657.00
2005 0.00 z 0.00 z 0.00 z 37.50 o 171.53 a 592.50 663.50 570.00 434.00 118.50 0.00 0.00 2550.03
2006 0.00 0.00 0.00 78.00 234.50 470.50 701.50 588.50 214.50 62.00 6.50 0.00 2356.00
2007 0.00 0.00 b 40.00 64.00 284.50 504.50 619.00 589.00 352.00 170.50 0.00 0.00 2623.50
2008 0.00 0.00 0.00 45.50 126.50 459.50 608.00 530.00 343.00 60.50 36.00 0.00 b 2209.00
2009 0.00 0.00 0.00 38.50 196.50 438.00 432.50 475.50 368.50 7.50 6.00 0.00 1963.00
2010 0.00 0.00 16.50 81.50 268.50 474.00 655.50 653.50 235.00 130.00 2.00 0.00 2516.50
2011 0.00 a 0.00 0.00 19.50 187.00 442.50 713.50 582.00 228.00 131.50 0.00 0.00 2304.00
2012 0.00 0.00 148.50 32.50 312.50 527.50 802.00 546.00 281.00 46.00 h 0.00 z 0.00 z 2650.00
Period of Record Statistics
MEAN 0.00 0.07 9.41 67.96 251.18 493.73 653.49 585.09 327.34 108.75 8.24 0.13 2495.27
S.D. 0.00 0.64 19.96 48.03 92.12 86.96 89.36 90.60 83.35 60.19 11.18 0.79 323.82
SKEW 0.00 9.94 4.39 0.91 0.45 0.36 0.13 0.18 0.48 1.05 1.95 5.98 0.03
MAX 0.00 6.74 148.50 231.50 549.73 777.00 902.50 863.00 572.68 322.00 62.00 5.50 3274.65
MIN 0.00 0.00 0.00 0.00 52.00 302.00 404.50 366.00 122.00 7.50 0.00 0.00 1666.50
NO YRS 112 115 116 113 113 113 107 112 112 113 114 112 96