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 201303
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 8.00 98.00 445.50 0.00 z 0.00 z 0.00 z 649.50 346.00 87.50 2.50 1637.00
1894 5.00 0.00 83.50 302.50 581.00 930.00 1111.00 940.50 655.50 257.50 0.00 z 1.66 c 4868.16
1895 0.00 5.00 30.50 314.00 554.50 839.00 908.00 935.50 755.50 166.50 70.50 0.00 4579.00
1896 0.00 7.50 9.00 380.00 735.50 818.00 943.50 938.27 a 481.50 242.50 26.00 0.50 4582.27
1897 8.50 0.00 20.50 206.50 513.50 756.00 1028.50 810.50 813.00 450.50 35.00 0.00 4642.50
1898 0.00 0.00 35.00 182.50 546.00 833.00 993.00 885.00 692.00 198.50 36.00 0.00 4401.00
1899 0.00 0.00 0.00 290.50 534.50 797.50 921.50 925.50 516.50 400.50 67.50 0.00 4454.00
1900 0.00 0.00 0.00 312.50 628.00 790.50 925.50 0.00 z 639.00 497.00 27.50 1.50 3821.50
1901 0.00 0.00 1.50 283.50 574.00 884.50 1156.00 907.50 546.21 a 339.50 17.50 0.00 4710.21
1902 0.00 2.50 60.00 190.50 616.50 682.50 959.00 787.00 479.50 290.00 90.00 0.00 a 4157.50
1903 0.00 0.00 35.50 190.50 581.00 666.50 904.50 749.50 513.00 274.50 66.50 0.00 3981.50
1904 0.00 d 0.00 10.50 167.50 660.00 848.00 927.50 776.50 582.50 300.50 77.00 0.00 4350.00
1905 0.00 0.00 89.50 182.50 438.50 764.50 874.50 896.00 643.45 a 257.50 22.50 0.00 4168.95
1906 0.00 0.00 0.00 318.00 539.50 789.00 900.50 968.00 743.00 294.50 a 57.00 0.00 4609.50
1907 0.00 0.00 88.00 54.50 322.00 740.00 955.50 887.00 570.00 227.50 17.50 0.00 3862.00
1908 0.00 0.00 18.00 214.00 521.00 725.50 929.50 811.50 776.50 299.50 63.00 0.00 4358.50
1909 1.00 0.00 z 0.00 z 53.28 a 497.60 b 772.50 951.00 1004.00 545.00 219.00 g 127.50 5.68 a 3957.56
1910 0.00 a 0.00 b 175.27 e 288.50 i 422.00 847.50 1057.00 899.52 a 573.21 b 390.50 8.79 a 0.00 4373.79
1911 0.00 0.00 44.50 202.50 716.00 972.86 b 1019.50 824.00 588.00 220.50 0.00 2.50 4590.36
1912 0.00 0.00 0.00 e 271.00 592.50 743.50 944.47 a 806.53 b 630.50 322.06 d 58.50 0.00 4369.06
1913 0.00 4.00 34.10 a 254.00 525.50 888.00 760.00 g 941.00 614.50 288.50 94.50 16.50 3660.60
1914 0.00 0.00 14.50 231.50 571.36 b 818.00 1022.00 899.00 608.08 d 439.50 74.50 2.50 4680.94
1915 0.00 0.00 0.00 451.50 405.21 c 428.50 l 850.50 777.67 b 445.50 f 337.50 80.50 0.00 2902.89
1916 0.00 a 0.00 31.50 193.45 a 505.09 b 646.50 1123.00 951.00 553.00 244.00 65.00 3.00 4315.53
1917 0.00 f 0.00 a 11.50 137.50 405.50 623.00 945.50 802.50 545.50 112.12 a 69.50 0.00 3652.62
1918 0.00 4.00 80.00 108.00 597.00 774.00 839.21 c 909.00 456.35 d 391.00 114.50 5.00 4278.06
1919 0.00 a 0.00 53.50 180.00 503.50 887.00 1051.00 882.97 b 411.00 k 277.50 f 0.00 z 0.00 z 3557.97
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 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1938 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1939 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1940 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1941 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1942 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1943 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1944 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1945 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1946 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1947 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1948 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1949 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1950 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1951 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1952 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1953 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1954 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1955 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1956 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1957 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1958 0.00 z 0.00 z 0.00 z 0.00 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
1959 0.00 0.00 5.17 d 196.50 661.50 841.50 919.48 c 1016.50 656.79 b 185.00 8.00 4.00 4494.43
1960 0.00 0.00 9.00 240.00 493.00 698.00 879.50 916.00 636.00 286.23 a 38.50 6.50 4202.73
1961 0.00 0.00 15.00 61.50 420.50 748.50 845.00 850.00 521.00 302.50 24.00 4.65 a 3792.65
1962 0.00 0.00 7.50 183.62 a 619.50 692.59 a 792.50 787.50 423.00 302.52 b 17.50 28.50 3854.72
1963 0.00 0.00 75.50 192.00 399.50 802.00 878.00 717.50 522.50 492.00 54.50 0.00 4133.50
1964 0.00 0.00 5.50 180.50 594.50 763.00 974.50 739.02 c 510.50 190.50 114.11 b 0.00 4072.12
1965 0.00 0.00 0.00 77.50 581.00 689.00 843.50 799.28 a 384.00 262.00 45.50 1.03 a 3682.82
1966 0.00 a 0.00 b 42.00 70.34 a 344.10 a 718.50 975.00 794.00 529.20 e 259.50 43.50 0.00 3776.14
1967 0.00 0.00 57.00 183.50 380.00 781.50 886.50 805.50 553.00 265.00 18.50 0.00 3930.50
1968 0.00 0.00 154.50 293.50 474.50 811.00 940.50 939.00 602.50 336.00 29.50 7.50 4588.50
1969 0.00 a 0.00 0.50 257.00 611.50 607.00 984.50 954.50 642.50 244.50 36.50 0.00 4338.50
1970 0.00 0.00 0.00 248.50 599.00 851.00 1001.50 918.50 609.00 316.00 18.00 4.50 4566.00
1971 0.00 0.00 12.50 263.28 a 437.00 946.50 847.50 849.00 692.50 484.50 60.00 0.00 4592.78
1972 0.00 0.00 8.50 142.00 649.50 778.00 898.00 934.50 618.50 224.00 14.50 0.00 4267.50
1973 2.50 0.00 97.00 181.50 455.50 870.00 999.50 948.50 626.00 458.50 29.50 2.00 4670.50
1974 0.00 0.00 16.00 266.50 442.50 707.00 1029.00 833.50 485.50 297.60 a 40.00 0.00 4117.60
1975 0.00 0.00 0.50 110.00 609.50 790.00 963.50 916.50 467.50 341.52 a 150.50 5.00 4354.52
1976 0.00 4.50 86.00 289.50 494.50 841.00 1015.50 890.50 594.50 213.50 8.50 0.00 4438.00
1977 0.00 0.00 112.50 429.50 768.50 775.00 1014.50 0.00 z 609.50 214.50 75.50 0.00 3999.50
1978 0.00 0.00 35.50 158.00 488.54 d 585.00 h 904.17 a 661.50 g 398.50 l 155.00 e 46.50 f 0.00 1741.20
1979 0.00 0.00 i 2.67 b 81.50 i 0.00 z 441.00 m 487.50 n 599.50 j 644.00 160.50 h 15.50 h 0.00 a 646.67
1980 0.00 d 0.00 g 5.00 n 293.50 394.00 m 564.50 i 541.00 o 450.50 p 479.00 g 104.00 t 54.00 e 0.00 j 347.50
1981 0.60 e 23.50 33.50 g 303.89 c 478.90 b 794.50 760.50 f 851.39 c 590.50 259.00 92.50 0.00 3394.77
1982 0.00 0.00 21.00 196.00 671.50 637.00 195.50 y 0.00 z 191.00 o 301.50 38.50 18.00 1883.50
1983 0.00 3.00 52.00 123.00 383.50 810.50 1072.50 1048.50 620.50 254.00 66.00 0.00 4433.50
1984 0.00 7.00 0.00 181.50 413.50 840.00 902.00 971.50 546.00 341.00 25.00 0.00 4227.50
1985 0.00 0.00 25.50 360.00 665.50 704.50 952.50 799.00 600.00 230.50 7.00 0.00 4344.50
1986 0.00 0.00 79.00 306.50 572.00 815.50 983.00 777.50 593.00 259.50 11.00 0.00 4397.00
1987 0.00 0.00 74.50 334.00 650.50 900.00 1047.50 865.50 618.00 144.50 82.50 0.00 4717.00
1988 0.00 0.00 20.00 181.00 691.00 946.00 1089.50 1035.00 638.00 156.00 23.00 0.00 4779.50
1989 0.00 0.00 60.50 0.00 z 502.00 760.00 1028.50 907.50 552.00 332.00 7.50 0.00 4150.00
1990 0.00 0.50 73.50 239.00 413.00 805.50 931.50 881.50 673.50 212.00 99.50 0.00 4329.50
1991 0.00 0.00 45.00 261.50 637.50 936.50 939.50 914.00 521.50 244.50 5.00 0.00 4505.00
1992 0.00 0.00 20.00 112.00 564.00 726.00 761.00 735.00 523.00 272.00 8.00 0.00 3721.00
1993 0.00 0.00 12.00 106.00 514.00 707.00 894.00 902.50 410.00 228.50 9.00 0.00 3783.00
1994 0.00 3.50 29.00 215.00 545.50 864.00 862.50 771.50 0.00 z 366.32 a 62.50 0.00 3719.82
1995 0.00 a 0.00 80.50 96.50 479.98 a 905.00 988.50 1074.50 537.00 271.00 0.00 0.00 4432.98
1996 0.00 0.00 13.00 109.00 413.50 765.50 894.50 877.50 583.50 286.50 3.00 0.00 3946.00
1997 0.00 0.00 28.00 173.00 175.50 i 848.00 922.00 806.00 621.00 319.50 10.50 0.00 3728.00
1998 0.00 z 0.00 z 0.00 z 42.50 z 229.00 v 0.00 z 644.50 j 525.00 m 752.00 312.00 55.50 42.50 1162.00
1999 0.00 z 0.00 z 30.00 w 235.86 a 583.00 792.00 1042.50 838.50 557.00 238.50 110.00 8.50 4405.86
2000 0.00 26.00 125.50 211.50 563.00 718.50 890.50 892.50 594.00 386.00 63.00 0.00 4470.50
2001 0.00 0.00 0.00 272.50 561.50 512.00 h 961.53 b 943.00 491.11 c 210.05 b 216.00 24.80 a 3680.50
2002 0.00 x 2.00 j 0.00 219.50 408.50 853.50 1041.00 868.50 681.00 171.50 17.50 2.00 4263.00
2003 2.00 1.50 62.50 239.00 485.50 734.00 928.00 993.50 594.50 278.50 22.50 2.50 4344.00
2004 0.00 0.00 78.50 233.50 467.50 718.00 892.00 732.50 711.50 276.00 65.50 0.00 4175.00
2005 0.00 0.00 51.00 298.00 430.50 928.50 984.50 860.00 715.50 329.00 74.00 0.00 4671.00
2006 0.00 0.00 16.50 305.00 538.00 800.50 1052.00 920.50 505.00 188.50 63.50 0.00 4389.50
2007 0.00 0.00 110.00 223.50 655.50 837.50 955.00 921.00 670.00 429.00 19.00 0.00 4820.50
2008 0.00 0.00 0.00 152.00 448.00 792.00 950.50 857.00 652.00 266.00 104.50 0.00 4222.00
2009 0.00 0.00 53.50 175.50 506.50 764.00 788.00 801.50 644.50 128.00 88.50 0.00 3950.00
2010 0.00 0.00 76.00 353.00 564.50 821.50 1014.00 989.50 561.00 378.50 49.00 0.00 4807.00
2011 0.00 0.00 4.50 129.50 505.00 808.50 1083.50 906.00 533.00 348.00 49.00 0.00 4367.00
2012 0.00 0.00 330.00 218.50 684.07 a 865.86 a 1142.50 873.00 579.50 224.00 53.79 a 11.00 4982.22
2013 0.00 b 0.00 0.00 h 0.00 z 0.00 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 0.25 1.22 42.35 216.28 533.16 793.90 957.13 878.64 591.57 286.51 51.13 2.68 4335.25
S.D. 1.17 4.21 51.56 85.34 96.99 80.21 82.60 79.63 84.28 85.15 39.12 6.88 305.86
SKEW 5.66 4.82 2.73 0.26 0.13 -0.04 0.16 0.08 0.11 0.48 1.26 3.81 -0.34
MAX 8.50 26.00 330.00 451.50 768.50 972.86 1156.00 1074.50 813.00 497.00 216.00 42.50 4982.22
MIN 0.00 0.00 0.00 53.28 322.00 607.00 761.00 717.50 384.00 112.12 0.00 0.00 3682.82
NO YRS 77 76 76 77 77 74 74 73 75 77 77 80 59