date! ,

Monthly Total Growing Degree Days

(a vali)

Base Temperature = 40 F

File last updated on Apr 6, 2013
*** Note *** Provisional Data *** After Year/Month 201304
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 z 0.00 z 9.50 96.50 0.00 z 0.00 z 963.00 0.00 z 615.50 324.00 72.50 5.00 2086.00
1894 0.50 0.00 80.50 287.00 560.50 881.00 1060.00 994.00 688.00 277.50 8.50 6.50 4844.00
1895 0.00 4.00 43.00 340.50 566.50 797.00 905.00 940.50 757.50 186.00 63.50 0.00 4603.50
1896 0.00 4.00 14.00 376.00 709.00 789.00 912.00 901.50 463.00 227.50 21.00 0.00 4417.00
1897 6.00 0.00 20.50 177.00 487.50 743.00 995.00 775.00 818.00 439.00 36.00 0.00 4497.00
1898 0.00 0.00 34.50 185.00 555.00 829.50 969.00 913.50 706.00 195.50 31.50 0.00 4419.50
1899 0.00 0.00 0.00 269.50 543.00 820.50 933.00 963.50 560.50 385.00 68.50 0.00 4543.50
1900 0.00 0.00 0.00 318.50 640.50 811.00 963.50 1149.00 631.50 494.50 22.50 1.00 5032.00
1901 0.00 d 0.00 e 6.00 260.50 571.50 873.50 1194.50 967.50 574.00 348.50 24.50 0.00 a 4820.50
1902 0.00 0.00 h 65.10 a 187.50 b 621.03 a 645.00 a 648.00 j 149.50 z 488.50 303.00 0.00 z 0.00 z 2310.13
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 d 0.00 a 1.50 102.41 a 607.00 764.00 821.50 d 806.00 621.00 397.04 e 0.00 x 0.00 4120.45
1905 0.00 0.00 97.00 185.00 463.50 789.00 858.70 a 952.50 699.50 271.00 0.00 z 0.00 z 4316.20
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 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
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 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
1929 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
1930 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
1931 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
1932 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
1933 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
1934 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
1935 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
1936 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
1937 0.00 0.00 1.50 178.00 559.00 762.50 1023.50 1090.00 695.00 241.50 43.00 0.00 4594.00
1938 0.00 0.00 164.50 315.00 562.00 835.50 1079.00 1031.00 686.50 494.50 89.50 0.00 5257.50
1939 0.00 0.00 94.50 222.00 740.00 861.50 1048.50 904.00 783.00 335.50 55.50 12.00 5056.50
1940 0.00 0.00 16.50 164.50 504.00 853.00 1050.50 876.50 709.00 435.00 0.00 z 0.00 a 4609.00
1941 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 849.00 1019.00 969.50 717.50 359.00 64.50 10.33 a 3988.83
1942 0.00 0.00 35.50 371.00 492.00 772.00 935.00 873.50 537.00 351.00 61.00 0.00 4428.00
1943 0.00 0.00 54.50 188.00 525.50 921.50 1025.00 942.00 502.50 261.50 0.00 s 0.00 z 4420.50
1944 0.00 z 0.00 z 0.00 z 155.50 679.50 869.50 909.50 929.00 657.00 349.50 107.00 0.00 4656.50
1945 0.00 0.00 214.50 197.00 361.00 637.00 889.50 908.00 578.00 278.50 47.50 0.00 4111.00
1946 0.00 0.00 169.00 327.00 456.50 781.00 955.00 790.00 594.50 399.00 18.00 15.00 4505.00
1947 0.00 0.00 6.50 132.50 370.00 708.00 965.00 1208.00 746.50 616.50 44.48 a 0.00 4797.48
1948 0.00 z 0.00 z 0.00 z 382.76 a 525.50 811.50 1068.00 1046.00 821.50 317.00 79.00 6.00 5057.26
1949 0.00 0.00 23.00 270.00 660.50 928.00 1093.00 1009.00 543.00 300.00 n 98.00 2.00 4626.50
1950 0.00 0.00 3.00 105.50 524.00 766.50 870.00 790.00 635.50 473.78 a 38.00 0.00 4206.28
1951 0.00 0.00 2.00 123.00 642.50 690.00 910.50 797.73 a 488.04 b 293.00 23.50 11.76 b 3982.03
1952 0.00 0.00 22.00 302.00 509.50 873.50 979.50 833.50 618.50 108.00 k 90.50 0.00 4229.00
1953 0.00 a 0.00 47.50 99.64 b 549.50 862.78 c 942.00 938.94 e 628.50 311.50 i 127.50 1.03 a 4197.40
1954 0.00 b 19.70 a 13.50 348.50 415.00 918.50 1051.00 670.50 h 702.32 b 317.75 e 82.50 0.00 3868.78
1955 0.00 0.00 z 0.00 z 183.50 s 685.00 768.62 a 1168.50 1105.50 727.00 342.00 7.50 0.00 4804.12
1956 0.00 0.00 0.00 145.00 587.00 973.00 918.00 947.50 580.50 497.50 88.50 0.00 4737.00
1957 0.00 0.00 15.00 309.00 524.50 821.00 1068.50 903.50 552.50 257.00 29.00 0.00 4480.00
1958 0.00 9.00 7.50 230.00 623.00 696.50 892.50 952.50 640.50 402.00 103.50 0.00 4557.00
1959 0.00 0.00 5.00 222.00 665.50 867.50 941.50 1030.50 631.50 186.50 12.00 5.00 4567.00
1960 0.00 0.00 7.00 275.00 553.50 740.50 944.00 938.00 682.50 331.50 46.00 2.50 4520.50
1961 0.00 0.52 a 17.10 b 89.00 459.50 821.00 894.00 919.15 a 590.00 346.50 33.00 2.07 a 4171.84
1962 0.00 c 0.00 7.50 205.86 a 688.00 759.50 861.00 893.50 519.31 a 399.38 a 23.50 29.50 4387.06
1963 0.00 0.00 96.00 247.76 a 479.98 a 891.50 961.00 843.72 a 656.54 d 598.82 a 76.00 0.00 a 4851.31
1964 0.50 1.12 c 13.95 a 251.67 c 726.00 865.86 a 1113.50 908.50 619.50 258.00 172.00 0.00 4930.59
1965 0.00 0.00 0.00 139.50 633.00 783.50 945.00 889.00 497.00 338.50 71.00 5.50 4302.00
1966 0.00 4.50 77.50 111.00 449.50 841.00 1041.50 857.50 626.50 319.00 52.50 0.00 a 4380.50
1967 0.00 0.00 76.00 220.50 428.50 824.00 889.00 810.50 607.50 296.50 25.00 0.00 4177.50
1968 0.00 0.00 153.50 301.55 a 461.00 838.97 a 928.00 923.00 636.50 0.00 z 32.00 7.50 4282.02
1969 0.00 a 0.00 0.00 260.50 590.00 629.00 971.00 984.00 646.00 248.50 52.50 0.00 4381.50
1970 0.00 a 0.00 0.00 263.00 603.50 851.50 1008.00 931.50 575.00 294.00 19.00 7.50 4553.00
1971 0.00 0.00 10.50 258.50 475.50 964.00 863.00 895.50 714.00 462.00 60.50 0.00 4703.50
1972 0.00 0.00 11.50 132.50 620.50 761.50 889.00 912.50 593.00 195.00 8.00 0.00 4123.50
1973 1.00 0.00 67.50 166.50 431.50 874.50 983.00 925.00 598.00 437.00 37.50 3.00 4524.50
1974 0.00 0.00 11.00 0.00 z 329.50 g 692.50 1026.00 807.55 a 452.00 274.00 49.00 0.00 3312.05
1975 0.00 0.00 0.00 98.50 644.50 847.50 1016.50 994.00 481.03 a 333.00 148.00 4.00 4567.03
1976 0.00 4.00 52.00 261.50 464.00 828.50 980.00 854.50 525.00 193.00 10.50 0.00 4173.00
1977 0.00 0.00 110.00 405.00 798.00 810.00 1016.00 767.50 613.50 205.50 82.50 0.00 4808.00
1978 0.00 0.00 24.50 171.00 557.50 802.00 897.00 874.00 722.50 203.00 72.00 0.00 4323.50
1979 0.00 0.00 2.50 144.50 452.00 758.00 916.00 804.50 618.00 228.00 37.00 2.00 3962.50
1980 0.00 0.00 6.50 236.00 572.50 786.50 957.50 875.00 576.00 156.50 38.00 0.00 4204.50
1981 1.50 31.50 56.50 275.50 449.00 772.00 895.50 843.50 518.50 189.00 76.00 0.00 4108.50
1982 0.00 0.00 12.00 156.50 596.50 618.00 955.50 826.50 536.50 274.00 33.50 11.50 4020.50
1983 0.00 0.00 45.50 99.50 367.50 783.50 1059.00 1023.50 593.50 238.00 67.00 0.00 4277.00
1984 0.00 1.50 0.00 177.50 412.50 794.50 841.00 904.50 494.00 310.00 21.00 0.50 3957.00
1985 0.00 a 0.00 25.00 343.00 637.50 685.00 904.50 784.50 616.00 224.00 10.00 0.00 4229.50
1986 0.00 0.00 72.50 311.50 573.00 841.00 985.00 767.50 607.00 280.00 11.50 0.00 4449.00
1987 0.00 0.00 75.50 327.00 665.50 907.00 1062.50 849.00 624.00 141.50 78.00 0.00 4730.00
1988 0.00 0.00 17.00 162.00 682.00 931.50 1041.00 1038.50 645.50 156.00 30.50 0.00 4704.00
1989 0.00 0.00 64.50 171.50 490.50 741.50 1013.50 902.50 543.50 309.50 7.50 0.00 4244.50
1990 0.00 0.00 74.50 232.00 390.50 806.50 917.50 903.50 684.00 222.00 95.00 0.00 4325.50
1991 0.00 0.00 43.50 240.50 644.50 940.00 943.50 897.00 523.50 239.50 3.50 0.00 4475.50
1992 0.00 0.00 31.50 116.50 535.00 711.00 752.50 721.50 511.00 274.50 8.50 0.00 3662.00
1993 0.00 0.00 3.00 102.00 482.00 716.00 891.50 893.50 416.00 231.50 10.00 0.00 3745.50
1994 0.00 3.50 35.00 210.50 528.00 851.50 851.50 780.50 688.50 332.00 64.00 0.00 4345.00
1995 0.00 0.00 77.00 93.50 449.50 878.50 970.00 1057.50 516.50 251.00 0.00 0.00 4293.50
1996 0.00 0.00 18.50 123.00 415.00 799.00 876.50 850.00 568.50 274.50 3.50 0.00 3928.50
1997 0.00 0.00 31.00 158.00 331.00 846.00 913.50 807.00 614.50 314.00 10.00 0.00 4025.00
1998 0.00 9.00 91.00 246.50 706.50 743.00 943.00 929.50 741.50 285.00 59.00 42.00 4796.00
1999 0.00 a 7.00 38.50 226.50 588.00 804.00 1060.00 859.50 571.50 233.00 75.00 10.50 4473.50
2000 0.00 30.00 122.50 214.00 605.00 753.50 929.00 913.50 620.50 381.50 66.50 0.00 4636.00
2001 0.00 0.00 0.00 284.50 561.00 779.00 999.50 958.50 535.00 222.50 218.50 22.00 4580.50
2002 8.50 0.00 0.50 234.50 444.50 875.00 1063.50 878.00 687.50 172.50 2.00 0.00 4366.50
2003 2.00 1.00 73.50 243.50 466.50 747.00 947.50 992.00 601.50 293.50 28.00 1.00 4397.00
2004 0.00 0.50 85.00 230.50 388.00 h 729.00 884.00 737.50 715.00 272.00 62.50 0.00 3716.00
2005 0.00 0.00 56.00 286.50 428.00 920.50 973.00 857.50 707.50 309.00 73.00 0.00 4611.00
2006 0.00 0.00 18.50 299.50 517.50 774.00 1037.50 906.00 497.50 200.00 60.50 0.00 4311.00
2007 0.00 0.00 105.00 216.00 651.00 819.00 929.00 910.50 658.00 415.00 17.00 0.00 4720.50
2008 0.00 0.00 1.00 144.50 427.00 774.00 934.00 824.50 647.50 243.50 105.00 0.00 4101.00
2009 0.00 0.00 47.00 162.00 496.00 749.50 777.00 799.00 640.50 132.50 82.00 0.00 3885.50
2010 0.00 0.00 59.00 334.50 542.00 815.50 994.00 993.00 569.50 315.50 52.00 0.00 4675.00
2011 0.00 0.00 7.50 151.00 505.00 836.50 1102.50 916.50 557.00 353.00 57.50 0.00 4486.50
2012 0.00 0.00 345.50 238.00 696.50 898.00 1179.00 883.50 609.50 216.50 65.69 a 8.00 5140.19
2013 0.00 0.00 0.00 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 0.24 1.58 44.05 219.11 545.93 806.69 966.71 906.55 613.74 303.34 52.50 2.76 4439.47
S.D. 1.15 5.38 55.50 80.19 99.84 75.21 84.00 91.21 84.00 97.79 39.28 6.64 323.56
SKEW 5.99 4.46 2.59 0.23 0.13 -0.22 0.30 0.61 0.13 0.85 1.37 3.71 0.05
MAX 8.50 31.50 345.50 405.00 798.00 973.00 1194.50 1208.00 821.50 616.50 218.50 42.00 5257.50
MIN 0.00 0.00 0.00 89.00 331.00 618.00 752.50 721.50 416.00 132.50 0.00 0.00 3662.00
NO YRS 85 83 85 85 84 87 87 85 88 84 83 85 71