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 0.00 5.00 40.50 308.00 833.28 a 907.00 738.83 a 500.69 a 174.50 r 0.00 n 0.00 3333.30
1894 0.00 0.00 g 43.50 213.50 375.50 846.50 942.50 780.50 589.00 222.50 1.50 1.00 4016.00
1895 0.00 e 0.00 z 6.50 0.00 z 516.00 800.50 787.50 775.50 665.00 108.50 34.82 b 0.00 3694.32
1896 0.00 3.00 3.50 277.50 658.50 772.50 873.00 860.50 422.00 171.02 a 2.00 g 0.00 4041.52
1897 0.50 0.00 14.50 135.52 a 369.00 580.00 c 981.15 a 705.00 679.50 314.00 21.50 0.00 3800.67
1898 0.00 0.00 29.00 153.00 471.00 760.00 924.83 a 790.00 642.00 206.50 43.50 0.00 4019.83
1899 0.00 0.00 0.00 270.00 448.50 736.50 869.50 901.50 445.50 338.00 53.00 0.00 4062.50
1900 0.00 0.00 a 0.00 240.00 531.50 740.00 878.33 a 1065.00 664.50 505.00 32.00 0.00 4656.33
1901 0.00 0.00 0.00 221.00 478.00 813.00 1023.50 856.00 531.50 298.63 a 0.00 z 0.00 z 4221.63
1902 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
1903 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
1904 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
1905 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
1906 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
1907 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
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 z 0.00
1909 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
1910 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
1911 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
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 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1913 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
1914 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
1915 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
1916 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
1917 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
1918 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
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 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1920 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
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 35.65 a 223.50 321.00 770.50 855.50 826.00 657.50 91.50 15.50 0.00 3796.65
1926 0.00 0.00 3.50 113.50 488.50 594.00 883.00 822.00 483.00 190.13 a 7.50 0.00 a 3585.13
1927 0.00 0.00 35.00 135.50 349.00 630.00 834.50 670.00 613.00 300.50 23.00 0.00 3590.50
1928 0.00 0.00 30.50 75.00 495.00 584.50 890.50 857.00 449.50 300.50 33.62 a 0.00 3716.12
1929 0.00 0.00 24.50 173.50 358.50 659.50 888.00 767.00 548.50 232.00 19.50 0.00 3671.00
1930 0.00 a 16.00 11.00 167.50 499.00 779.48 a 938.00 887.50 650.00 287.50 105.52 a 0.50 4342.00
1931 0.00 0.00 a 4.50 192.50 407.65 a 845.50 1026.00 820.00 758.00 381.00 122.50 0.00 4557.65
1932 0.00 0.00 1.00 100.50 455.00 830.50 951.00 882.50 541.50 206.15 a 17.50 0.00 3985.65
1933 0.00 0.00 1.00 129.00 524.00 962.00 996.00 817.50 735.00 212.72 b 34.00 0.00 4411.22
1934 0.00 0.00 0.00 109.50 638.08 a 860.00 939.00 774.50 574.00 338.50 62.50 0.00 4296.08
1935 0.00 a 0.00 12.00 163.50 394.00 0.00 z 1089.50 889.00 575.50 258.85 a 10.50 0.00 3392.85
1936 0.00 0.00 6.50 123.10 a 668.00 690.00 1062.00 905.00 682.50 212.50 14.00 5.00 4368.60
1937 0.00 0.00 0.00 o 152.00 524.50 772.50 1040.00 1054.00 632.00 181.00 13.00 0.00 4369.00
1938 0.00 0.00 105.00 264.50 496.50 746.00 927.50 966.50 570.00 418.50 93.50 0.00 4588.00
1939 0.00 0.00 b 28.00 171.50 722.50 924.00 1045.50 906.00 686.00 288.50 16.50 10.00 4798.50
1940 0.00 0.00 5.50 112.00 431.50 736.50 967.00 0.00 z 629.50 317.50 36.35 d 0.00 3235.85
1941 0.00 a 0.00 0.00 324.00 652.00 851.50 1024.00 896.50 681.50 314.65 a 54.00 15.00 4813.15
1942 0.00 0.00 10.85 a 378.00 519.00 795.50 945.50 919.31 b 579.50 350.00 48.00 0.00 a 4545.66
1943 0.00 0.00 a 37.20 a 147.50 500.00 921.72 a 1040.50 960.00 466.50 274.00 1.00 0.00 4348.42
1944 15.00 0.00 3.00 110.50 667.00 889.50 934.00 967.00 622.00 132.00 q 19.50 y 0.00 k 4208.00
1945 0.00 0.00 177.50 218.50 396.80 a 671.50 908.00 935.50 425.50 i 196.00 20.00 0.00 3523.80
1946 0.00 0.00 117.00 229.00 474.50 769.14 a 894.19 b 736.77 a 527.68 b 394.45 b 51.00 0.50 4194.22
1947 0.00 0.00 7.00 90.52 a 364.00 659.42 d 1010.50 1079.50 628.97 a 459.83 a 43.00 0.00 4342.74
1948 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 735.50 908.00 858.00 632.00 222.00 66.00 1.00 3422.50
1949 0.00 d 0.00 14.50 196.07 b 547.00 940.50 1061.00 954.00 523.50 442.50 57.00 0.00 4736.07
1950 0.00 0.00 9.50 43.00 514.00 812.00 878.50 774.00 587.00 410.00 30.50 0.00 4058.50
1951 0.00 0.00 8.50 142.00 691.00 703.00 930.00 801.00 524.50 302.25 a 8.79 a 14.50 4125.54
1952 0.00 0.00 10.00 310.50 505.50 867.41 a 1006.00 860.00 611.00 161.72 a 61.00 0.00 4393.13
1953 0.00 0.00 18.00 106.00 535.50 862.50 993.50 947.50 640.00 437.50 134.00 1.00 4675.50
1954 0.00 3.11 a 3.50 256.00 383.37 a 864.50 986.32 a 842.00 591.50 289.00 53.28 a 0.00 4272.57
1955 0.00 0.00 12.40 a 344.00 632.50 815.00 1143.79 b 1073.50 667.00 338.00 12.00 0.00 5038.19
1956 0.00 0.00 0.00 80.00 461.00 861.21 a 865.00 856.08 e 538.00 471.50 115.34 a 0.00 a 4248.13
1957 0.00 a 0.50 9.82 a 282.50 469.65 a 784.00 991.50 864.50 564.83 a 247.00 33.00 0.00 4247.29
1958 0.00 0.00 0.50 189.00 490.00 653.50 887.50 907.00 619.50 341.00 89.00 0.00 a 4177.00
1959 0.00 0.00 0.00 a 166.00 664.50 845.00 921.00 758.50 i 676.00 179.59 b 7.24 a 0.00 3459.33
1960 0.00 0.00 5.00 231.50 476.00 721.50 908.82 a 927.00 664.00 296.00 43.50 11.00 4284.32
1961 0.00 1.00 27.50 100.50 448.50 799.50 927.00 911.29 b 669.83 a 345.00 36.50 n 0.53 b 4230.66
1962 0.00 0.00 9.00 176.00 663.50 742.50 824.50 864.50 506.00 356.50 3.00 19.50 4165.00
1963 0.00 0.00 39.00 228.00 442.50 829.50 954.00 823.00 618.00 543.50 81.43 b 0.00 4558.93
1964 0.00 0.00 9.50 244.50 669.50 785.00 998.00 773.50 549.00 250.50 159.00 0.00 4438.50
1965 0.00 0.00 0.00 g 90.00 629.50 707.00 863.00 838.00 493.00 302.00 46.00 1.00 3969.50
1966 0.00 0.00 28.00 117.00 382.50 823.00 1007.00 830.00 558.50 276.00 27.50 0.00 4049.50
1967 0.00 0.00 35.50 174.00 355.00 796.50 873.50 762.50 569.50 261.50 24.50 0.00 3852.50
1968 0.00 0.00 117.50 223.00 441.50 772.50 911.50 867.50 636.50 370.50 24.00 4.00 4368.50
1969 0.00 0.00 1.03 a 219.00 531.50 563.50 910.50 968.00 577.50 245.50 28.00 0.00 4044.53
1970 0.00 0.00 0.00 234.00 511.00 837.50 0.00 z 0.00 z 0.00 z 390.08 a 27.32 b 6.00 2005.90
1971 0.00 0.00 1.50 218.50 453.50 860.50 807.50 738.50 628.00 471.00 54.50 0.00 4233.50
1972 0.00 0.00 0.00 101.00 604.00 676.00 832.50 812.50 499.50 175.50 17.50 0.00 3718.50
1973 0.00 0.00 34.00 133.00 349.50 786.50 917.50 881.50 525.50 378.00 4.50 0.00 4010.00
1974 0.00 0.00 11.00 220.50 389.50 654.50 982.50 803.50 457.00 243.00 47.50 0.00 a 3809.00
1975 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 451.50 337.68 c 144.50 0.00 933.68
1976 0.00 0.00 29.50 237.00 414.00 840.00 971.00 837.50 531.50 168.00 5.50 0.00 4034.00
1977 0.00 0.00 62.50 360.50 751.50 708.50 1023.50 770.00 580.00 225.00 94.00 0.00 4575.50
1978 0.00 0.00 8.00 92.00 577.00 677.88 d 806.00 d 833.79 b 655.71 b 228.00 60.50 0.00 3938.89
1979 0.00 0.00 3.74 b 141.00 422.00 727.00 917.08 a 800.00 595.50 217.50 21.21 a 0.00 3845.03
1980 0.00 0.00 9.00 246.00 586.00 741.00 985.28 a 902.00 569.48 a 165.50 20.17 a 0.00 b 4224.44
1981 0.00 18.67 d 63.50 236.50 477.00 803.50 953.00 898.50 543.62 a 179.50 52.76 a 0.00 4226.55
1982 0.00 0.00 17.00 138.00 696.50 612.00 994.50 834.00 567.00 331.00 42.50 24.00 4256.50
1983 0.00 0.00 17.00 123.50 308.50 764.50 1043.50 965.00 592.50 257.50 49.00 0.00 4121.00
1984 0.00 0.00 0.00 167.50 367.00 787.00 879.00 922.00 508.50 323.50 23.00 2.58 a 3980.08
1985 0.00 0.00 26.00 294.50 620.00 672.50 888.00 802.50 569.50 201.00 20.00 0.00 4094.00
1986 0.00 0.00 60.00 276.50 558.50 719.50 961.50 738.50 567.50 214.50 19.00 0.00 4115.50
1987 0.00 0.00 47.00 305.00 567.50 864.50 1014.00 841.00 592.50 110.00 58.50 0.00 4400.00
1988 0.00 0.00 7.50 154.50 597.50 854.00 1000.00 975.00 597.00 134.50 21.50 0.00 4341.50
1989 0.00 0.00 28.50 127.00 439.50 680.00 928.00 861.50 529.50 297.00 9.00 0.00 3900.00
1990 0.00 0.00 63.00 300.50 377.50 751.00 869.50 831.50 615.50 187.50 79.00 0.00 4075.00
1991 0.00 0.00 29.00 259.00 615.00 857.50 882.50 895.50 498.00 206.50 4.50 0.00 4247.50
1992 0.00 0.00 0.00 111.50 523.50 676.00 752.50 743.00 495.00 229.50 3.00 0.00 3534.00
1993 0.00 0.00 18.50 83.50 482.00 666.00 891.00 877.50 406.50 183.50 8.00 0.00 3616.50
1994 0.00 0.00 17.00 156.00 512.00 828.50 864.00 766.00 638.00 292.00 57.00 0.00 4130.50
1995 0.00 0.00 55.00 53.00 439.50 894.50 950.50 993.00 490.50 268.50 2.00 0.00 4146.50
1996 0.00 0.00 3.50 110.00 362.50 741.00 814.00 857.50 574.00 211.50 13.50 0.00 3687.50
1997 0.00 1.50 10.50 146.50 280.00 797.50 854.50 723.50 579.50 277.50 13.00 0.00 3684.00
1998 0.00 3.50 73.50 216.50 672.50 714.50 912.50 906.00 693.00 274.50 42.50 23.00 4532.00
1999 0.00 0.00 27.00 209.00 575.50 783.50 1017.00 808.00 516.00 180.50 98.00 0.50 4215.00
2000 0.00 13.50 92.00 149.00 541.00 713.00 864.50 843.50 539.00 325.00 56.50 0.00 4137.00
2001 0.00 0.00 0.00 241.00 556.50 751.50 917.00 958.50 528.50 206.00 119.00 17.00 4295.00
2002 0.50 0.00 4.00 205.50 335.50 796.50 1039.50 872.00 664.00 148.50 23.50 2.50 4092.00
2003 0.00 0.00 47.00 163.00 404.00 696.00 882.50 919.00 559.00 192.00 12.00 0.00 3874.50
2004 0.00 0.00 31.50 168.50 393.50 664.00 829.50 705.50 703.50 236.50 45.50 0.00 3778.00
2005 0.00 0.00 37.00 201.00 395.00 897.50 960.00 910.00 693.50 329.00 44.50 0.00 4467.50
2006 0.00 0.00 24.50 282.00 526.00 753.00 1021.00 851.00 501.50 153.50 34.00 0.00 4146.50
2007 0.00 0.00 91.00 197.50 591.50 835.50 912.00 887.00 664.00 410.50 16.50 0.00 4605.50
2008 0.00 0.00 0.00 183.50 375.00 747.00 919.00 840.00 634.00 236.00 74.50 0.00 4009.00
2009 0.00 0.00 14.50 134.50 472.00 741.50 765.00 806.50 641.00 112.50 62.50 0.00 3750.00
2010 0.00 0.00 51.50 303.50 583.50 760.00 979.00 970.50 508.00 297.50 32.00 0.00 4485.50
2011 0.00 0.00 8.00 93.00 454.50 737.00 1046.50 877.50 524.00 316.00 38.00 0.00 4094.50
2012 0.00 0.00 246.50 171.50 652.50 864.50 1106.00 879.00 534.50 138.00 k 0.00 z 0.00 z 4454.50
Period of Record Statistics
MEAN 0.17 0.66 26.74 184.25 497.33 768.88 936.64 860.79 581.16 274.27 41.80 1.70 4175.38
S.D. 1.55 2.93 38.64 74.38 109.29 84.69 77.60 82.79 73.48 94.24 34.48 4.92 319.80
SKEW 9.51 5.09 3.09 0.36 0.24 -0.19 0.10 0.32 -0.05 0.50 1.33 3.22 0.12
MAX 15.00 18.67 246.50 378.00 751.50 962.00 1143.79 1079.50 758.00 543.50 159.00 24.00 5038.19
MIN 0.00 0.00 0.00 40.50 280.00 563.50 752.50 670.00 406.50 91.50 1.00 0.00 3534.00
NO YRS 94 92 93 94 95 95 95 93 95 94 91 94 79