date! ,

Monthly Total Growing Degree Days

(a vali)

Base Temperature = 40 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 x 0.00 a 5.50 88.50 399.00 874.00 944.00 811.00 567.00 322.00 75.50 0.00 4086.50
1894 0.00 0.00 64.50 263.50 530.50 905.50 1004.50 887.00 696.00 269.00 3.00 3.00 4626.50
1895 0.00 4.00 13.00 278.00 585.00 853.50 860.00 870.50 765.50 76.50 l 58.00 0.00 c 4287.50
1896 0.00 4.00 8.50 345.50 732.50 825.00 913.47 a 897.50 470.00 205.00 12.50 0.00 4413.97
1897 6.00 0.00 19.00 167.00 439.00 699.31 a 1023.00 754.00 746.00 360.24 b 27.93 a 0.00 a 4241.48
1898 0.00 a 0.00 31.50 154.66 a 526.47 b 811.80 e 966.00 824.00 648.00 182.38 a 39.83 a 0.00 c 4184.63
1899 0.00 d 0.00 0.00 c 314.48 a 506.85 a 786.00 911.40 a 923.80 a 486.00 363.14 c 65.40 e 0.00 4357.08
1900 0.00 0.00 d 0.00 243.75 b 629.41 c 761.90 a 861.28 a 1015.25 e 596.00 512.00 32.00 h 0.00 j 4619.59
1901 0.00 l 0.00 u 0.00 u 252.50 h 614.00 810.00 a 1078.05 b 881.95 a 441.00 g 316.56 e 14.00 f 0.00 d 3700.56
1902 0.00 g 1.68 c 56.50 185.50 548.70 a 642.86 b 945.50 818.73 c 499.14 a 246.97 a 91.00 f 0.00 3945.57
1903 0.00 0.00 53.50 190.00 c 536.00 446.00 h 880.50 707.00 558.21 b 201.50 g 63.10 a 0.00 2988.32
1904 0.00 a 0.00 0.00 f 109.66 a 517.91 b 723.50 827.50 777.07 a 657.00 248.50 i 105.00 a 0.00 3717.64
1905 0.00 0.00 b 74.00 168.89 c 255.00 l 703.45 a 849.00 844.48 b 648.33 c 253.34 b 21.00 0.00 3562.50
1906 0.00 b 0.00 0.00 d 238.20 e 452.17 b 0.00 z 855.82 c 940.00 701.90 a 267.78 b 27.50 0.00 b 3483.37
1907 0.00 a 0.00 36.17 a 50.50 273.50 402.00 k 611.50 j 0.00 z 0.00 z 161.50 g 13.45 a 0.00 373.61
1908 0.00 0.00 10.50 216.00 491.57 c 762.12 d 883.00 811.50 747.12 d 335.83 a 40.96 d 0.00 m 4298.60
1909 0.00 w 0.00 a 0.00 a 28.45 a 450.03 b 0.00 z 0.00 z 964.58 e 521.54 d 204.50 71.00 i 3.32 c 2172.42
1910 0.00 0.00 b 165.00 f 291.50 216.50 i 866.79 b 783.50 f 451.50 n 543.33 c 292.00 f 0.00 e 0.00 1701.62
1911 0.00 0.00 11.00 q 204.44 c 678.12 c 951.11 c 930.53 b 811.34 b 619.04 d 41.50 y 0.00 z 0.00 z 4194.60
1912 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 168.50 p 342.66 c 59.00 0.00 401.66
1913 0.00 0.00 32.00 265.00 474.00 873.50 934.65 a 924.32 a 641.00 275.00 50.00 3.50 4472.97
1914 0.00 c 0.00 a 17.50 177.00 608.00 772.50 1048.50 875.50 625.00 455.00 50.50 2.00 4631.50
1915 0.00 0.00 0.00 481.50 448.50 266.00 t 856.67 e 735.50 670.00 311.50 62.50 0.00 b 3566.17
1916 0.00 a 0.00 7.00 194.00 520.50 653.00 1179.00 925.83 e 568.50 290.50 36.50 2.50 4377.33
1917 0.00 0.00 a 0.00 z 115.34 a 338.42 a 659.00 967.00 855.50 545.50 88.50 47.00 0.00 3616.26
1918 0.00 0.00 a 85.77 a 115.00 643.00 790.50 891.50 943.00 410.00 312.50 74.48 a 0.00 4265.75
1919 0.00 0.00 41.00 194.00 466.00 935.50 1032.50 861.50 706.00 284.00 19.00 0.00 4539.50
1920 0.00 0.00 75.50 111.00 485.50 849.00 915.00 872.50 697.50 486.50 10.00 2.50 4505.00
1921 0.00 0.00 64.00 339.00 651.00 976.50 1176.50 938.00 748.00 313.50 16.50 0.00 5223.00
1922 0.00 0.00 11.50 168.50 721.50 848.50 892.50 939.50 720.50 366.50 98.00 0.00 4767.00
1923 0.00 0.00 5.00 186.00 553.00 945.50 1040.50 858.50 631.00 280.00 0.00 z 3.00 4502.50
1924 0.00 0.00 0.00 134.00 321.00 680.50 889.50 835.00 480.00 426.50 69.50 0.00 3836.00
1925 0.00 0.50 0.00 z 344.50 403.50 840.00 913.50 921.50 687.00 116.00 32.50 0.00 4259.00
1926 0.00 0.00 7.00 171.50 607.50 703.97 a 952.50 896.50 553.00 243.87 a 11.00 0.00 4146.83
1927 0.00 0.52 a 63.50 189.50 427.50 722.50 936.00 778.62 a 684.00 344.62 a 28.00 0.00 a 4174.75
1928 0.00 0.00 a 47.00 120.50 636.00 680.89 b 985.50 947.00 504.50 359.50 38.50 1.50 4320.89
1929 0.00 0.00 48.00 254.00 455.00 787.50 1042.50 907.50 655.34 a 288.00 30.50 0.00 4468.34
1930 0.00 24.00 23.50 271.50 587.00 861.00 1051.00 977.50 687.00 323.50 155.50 0.00 4961.50
1931 0.00 6.00 5.50 278.00 499.62 a 967.76 a 1118.14 b 929.00 864.50 422.12 a 124.00 0.00 c 5214.63
1932 0.00 b 0.00 e 1.00 148.33 c 553.00 907.50 1028.50 974.00 622.24 a 219.50 20.50 1.55 a 4476.12
1933 0.00 0.00 b 2.67 b 147.50 561.50 1058.33 c 1073.63 a 923.00 758.00 230.90 b 35.89 b 1.03 a 4792.46
1934 0.52 a 0.00 a 0.00 a 146.00 777.58 a 969.31 a 1069.00 872.00 624.31 a 396.28 a 44.44 c 0.00 b 4899.45
1935 0.00 a 0.00 b 23.50 185.00 436.50 675.52 a 1155.50 949.50 628.50 307.00 6.21 a 0.00 a 4367.22
1936 0.00 b 0.00 a 8.02 b 125.50 737.80 a 762.00 1153.50 1008.50 769.00 239.50 15.00 a 15.50 a 4834.32
1937 0.00 c 0.00 0.00 128.50 590.00 813.62 a 1077.50 1140.00 691.00 201.50 23.79 a 0.00 4665.91
1938 0.00 a 0.00 117.28 a 276.50 521.00 788.50 964.00 1037.00 631.07 b 431.00 113.00 0.00 b 4879.35
1939 0.00 0.00 a 59.93 a 188.50 689.00 842.50 1045.50 949.00 750.00 305.00 25.00 15.50 a 4869.93
1940 0.00 0.00 a 8.78 a 113.33 c 469.00 806.00 1023.50 858.00 710.89 b 356.50 40.86 a 0.00 4386.87
1941 0.00 0.00 0.00 b 354.11 b 692.00 876.50 1012.67 a 947.00 754.00 289.00 61.00 10.85 a 4997.12
1942 0.00 0.00 19.12 a 393.00 533.00 816.21 a 966.17 a 908.00 576.00 320.00 35.00 0.00 4566.49
1943 0.00 0.00 56.00 156.00 510.00 942.00 1069.00 994.00 522.50 318.00 1.00 0.00 4568.50
1944 14.50 0.00 4.00 148.50 701.50 900.50 996.50 999.50 676.03 a 282.50 122.07 a 0.00 a 4845.60
1945 0.00 0.00 a 180.00 206.25 b 402.00 665.00 894.50 938.00 637.50 252.00 13.45 a 0.00 z 4188.70
1946 0.00 c 0.00 b 136.00 247.50 b 466.50 786.00 990.50 873.50 619.00 392.00 31.00 11.76 b 4553.76
1947 0.00 b 0.00 17.00 90.50 352.50 710.50 984.00 1168.00 710.50 570.50 46.00 0.00 4649.50
1948 0.00 0.00 39.00 306.72 a 540.00 815.00 1019.00 973.00 770.50 274.00 68.50 0.00 4805.72
1949 0.00 a 0.00 19.00 263.65 d 630.50 950.00 1038.00 970.00 506.50 440.50 58.50 1.00 4877.65
1950 0.00 a 0.00 1.00 51.50 505.00 823.39 b 863.72 b 725.50 560.00 406.00 26.50 0.00 3962.62
1951 0.00 a 0.00 3.62 a 117.50 573.50 657.00 873.50 745.50 453.50 234.00 7.50 12.50 3678.12
1952 0.00 0.00 4.50 275.50 457.50 819.00 976.50 824.50 578.57 b 102.00 46.50 0.00 4084.57
1953 0.00 0.00 12.00 64.50 488.00 817.00 920.50 887.63 a 573.00 403.00 102.50 1.00 4269.13
1954 0.00 1.00 4.50 226.50 350.00 828.50 915.50 807.50 572.50 244.00 55.50 0.00 4005.50
1955 0.00 a 0.00 15.50 327.50 628.50 754.50 1109.00 1041.00 643.00 336.00 5.00 0.00 4860.00
1956 0.00 0.00 0.00 73.97 a 472.00 858.00 831.00 879.50 518.00 463.00 99.50 0.00 4194.97
1957 0.00 0.00 9.00 282.50 460.87 a 788.50 994.50 874.50 558.50 231.00 35.50 0.00 4234.87
1958 0.00 1.50 0.00 181.00 517.00 664.14 a 878.50 918.50 627.50 349.00 81.50 0.00 4218.64
1959 0.00 0.00 3.00 156.72 a 653.00 818.50 908.50 1017.50 647.50 191.00 6.50 0.00 4402.22
1960 0.00 0.00 16.00 255.50 473.00 677.00 881.00 920.00 661.55 a 297.50 49.00 11.00 4241.55
1961 0.00 3.50 34.50 105.50 432.50 775.00 913.50 898.50 631.00 363.00 45.00 9.00 4211.00
1962 0.00 0.00 14.50 186.00 655.00 749.50 816.50 858.00 497.50 383.00 19.50 40.00 4219.50
1963 0.00 0.00 54.50 251.00 447.00 860.50 970.50 815.50 590.00 587.00 95.00 0.00 4671.00
1964 0.50 0.00 10.00 255.00 667.50 791.50 997.00 792.00 561.00 253.00 175.50 0.00 4503.00
1965 0.00 0.00 0.00 80.00 621.00 733.50 865.00 818.00 493.00 300.00 57.00 2.50 3970.00
1966 0.00 0.00 41.50 111.50 378.00 809.50 1008.50 801.50 558.50 274.00 32.50 0.00 4015.50
1967 0.00 0.00 39.50 185.50 345.00 782.00 854.00 743.50 544.00 266.00 28.00 0.00 3787.50
1968 0.00 0.00 136.00 234.50 415.50 763.00 907.00 894.50 615.00 352.50 32.00 4.00 4354.00
1969 0.00 0.00 1.50 235.50 528.50 549.50 918.50 952.50 574.50 254.00 33.00 0.00 4047.50
1970 0.00 0.00 0.00 240.00 539.50 818.00 980.00 896.00 619.50 353.50 21.00 4.50 4472.00
1971 0.00 0.00 0.00 207.00 416.50 894.00 834.50 788.50 658.00 482.00 60.00 0.00 4340.50
1972 0.00 0.00 0.00 116.00 641.00 714.50 877.00 862.50 552.50 213.50 21.50 0.00 3998.50
1973 3.50 0.00 64.50 152.50 364.00 816.50 968.50 925.50 601.50 446.50 14.50 1.50 4359.00
1974 0.00 0.00 22.00 235.00 401.00 668.50 968.50 837.00 470.00 279.50 56.50 0.00 3938.00
1975 0.00 0.00 3.50 79.50 621.00 763.50 954.00 879.00 447.50 355.00 167.50 4.00 k 4270.50
1976 0.00 2.00 63.00 241.50 460.00 848.00 972.00 857.50 534.50 209.50 8.50 0.00 4196.50
1977 0.00 2.00 80.08 a 381.00 776.50 726.00 1021.50 783.50 608.50 246.00 98.50 0.00 4723.58
1978 0.00 0.00 13.50 101.00 447.12 e 286.50 t 861.50 900.00 703.00 239.50 44.42 d 0.00 a 3310.04
1979 0.00 d 0.00 14.00 161.50 422.12 a 743.00 937.00 825.50 647.00 210.50 35.50 1.50 3997.62
1980 0.00 0.00 6.00 230.50 602.00 741.72 a 986.00 913.50 582.00 177.50 31.50 0.00 4270.72
1981 3.50 16.50 60.00 247.24 a 491.00 780.00 921.50 888.00 532.50 201.00 90.00 a 0.00 4231.24
1982 0.00 0.00 14.00 155.00 676.00 607.00 956.00 821.00 527.50 280.00 36.00 19.00 4091.50
1983 0.00 2.00 24.50 130.00 335.00 779.50 1055.50 1018.50 617.00 262.00 58.00 0.00 4282.00
1984 0.00 7.00 0.00 189.00 419.00 831.00 897.00 944.50 520.00 341.50 28.00 1.50 4178.50
1985 0.00 0.00 27.50 339.00 631.00 665.00 904.00 801.50 598.00 240.50 17.00 0.00 4223.50
1986 0.00 a 0.00 85.50 300.50 592.50 781.00 969.00 742.50 584.00 262.50 21.00 0.00 4338.50
1987 0.00 0.00 62.00 335.00 609.00 870.00 1024.50 856.00 619.00 135.00 72.00 0.00 4582.50
1988 0.00 a 0.00 8.50 207.00 661.00 877.50 1045.50 1007.00 632.50 170.00 29.00 0.00 4638.00
1989 0.00 0.00 50.50 154.50 501.00 717.50 974.00 884.50 568.50 322.50 13.00 0.00 4186.00
1990 0.00 0.00 74.50 286.00 398.00 772.00 918.50 880.00 680.50 216.50 110.00 0.00 4336.00
1991 0.00 1.00 41.50 265.50 642.50 894.00 909.50 917.00 513.50 273.00 12.00 0.00 4469.50
1992 0.00 0.00 6.00 115.00 549.00 677.50 763.00 763.50 519.50 267.50 10.50 0.00 3671.50
1993 0.00 0.00 21.50 106.50 517.00 675.00 890.00 891.00 401.50 206.50 8.50 0.00 3717.50
1994 0.00 0.00 24.50 184.00 572.00 868.00 876.50 796.00 666.50 312.50 62.00 0.00 4362.00
1995 0.00 0.00 62.50 68.50 473.00 912.50 956.00 1006.50 508.50 251.00 0.00 0.00 4238.50
1996 0.00 0.00 7.00 107.00 373.50 758.50 820.50 866.50 586.50 234.00 12.00 0.00 3765.50
1997 0.00 0.00 17.50 160.00 307.50 814.50 879.00 749.00 607.00 290.50 13.50 0.00 3838.50
1998 0.00 3.00 83.50 238.50 687.00 727.00 926.50 907.50 708.50 303.50 52.50 33.00 4670.50
1999 0.00 0.00 36.00 234.50 585.00 787.50 1018.00 822.50 537.50 197.50 95.50 8.00 4322.00
2000 0.00 28.50 93.00 163.00 551.50 705.00 877.50 878.50 549.00 346.50 69.00 0.00 4261.50
2001 0.00 0.00 0.00 249.50 543.50 746.00 942.50 945.50 509.00 212.50 157.50 22.00 4328.00
2002 0.50 0.00 7.00 183.00 346.00 785.50 996.00 858.50 686.50 153.50 24.50 3.50 4044.50
2003 0.50 0.00 60.50 188.00 477.50 719.00 900.00 966.00 596.50 229.00 17.00 0.50 4154.50
2004 0.00 0.00 44.50 184.00 405.50 667.50 868.50 712.50 726.00 259.50 59.00 0.00 3927.00
2005 0.00 2.50 44.50 262.00 376.50 916.50 988.50 915.00 692.50 312.00 61.00 0.00 4571.00
2006 0.00 0.00 17.00 294.00 526.00 781.50 1006.00 847.00 516.00 164.00 58.00 1.50 4211.00
2007 0.50 0.00 114.00 223.00 618.00 838.00 938.00 901.50 630.00 404.50 16.50 0.00 4684.00
2008 0.00 0.00 0.00 138.50 331.50 734.00 900.00 832.00 622.50 228.00 86.00 0.00 3872.50
2009 0.00 0.00 16.00 137.00 493.50 725.50 736.50 787.50 660.50 111.50 69.50 0.00 3737.50
2010 0.00 0.00 67.00 324.50 593.00 764.50 982.00 967.50 505.00 305.00 47.50 0.00 4556.00
2011 0.00 0.00 4.65 a 86.50 452.00 742.00 1024.00 897.00 497.00 301.50 31.55 a 0.00 4036.20
2012 0.00 0.00 303.50 161.50 606.00 808.00 1091.00 867.50 546.00 159.50 h 0.00 z 0.00 z 4383.50
Period of Record Statistics
MEAN 0.26 0.94 33.13 199.10 521.54 791.07 955.48 885.19 607.29 294.62 47.41 2.24 4355.87
S.D. 1.52 3.83 43.06 83.62 111.09 89.54 84.60 83.22 87.06 92.86 36.99 6.13 340.81
SKEW 7.85 5.68 2.94 0.46 0.08 0.19 0.31 0.35 0.14 0.54 1.31 3.96 0.20
MAX 14.50 28.50 303.50 481.50 777.58 1058.33 1179.00 1168.00 864.50 587.00 175.50 40.00 5223.00
MIN 0.00 0.00 0.00 28.45 273.50 549.50 736.50 707.00 401.50 88.50 0.00 0.00 3671.50
NO YRS 115 118 113 118 117 113 116 117 117 113 113 114 97