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 0.00 17.64 b 118.00 457.00 959.50 1036.00 886.00 687.00 405.00 78.10 a 3.00 4647.24
1894 15.00 0.00 0.00 z 301.00 611.00 885.50 1030.00 1093.00 669.00 263.50 4.14 a 17.00 4889.14
1895 0.00 7.00 57.00 400.50 589.00 a 827.00 1005.50 953.00 783.00 187.50 59.50 0.00 4869.00
1896 0.00 10.50 27.00 440.00 767.50 864.00 982.00 1042.00 511.55 a 251.50 33.00 12.00 4941.05
1897 13.00 0.00 40.30 a 217.24 a 0.00 z 299.00 t 1086.03 a 794.50 832.00 459.50 38.50 0.00 3481.07
1898 0.00 0.00 37.50 194.50 556.00 878.50 990.00 919.00 728.00 238.50 47.59 a 0.00 4589.59
1899 0.00 0.00 0.00 306.50 590.55 a 879.50 981.00 1030.00 629.00 454.50 104.00 0.00 4975.05
1900 0.00 0.00 4.13 a 330.00 696.50 831.50 981.00 1138.00 672.00 536.50 32.50 0.00 5222.13
1901 0.00 d 0.00 a 17.80 d 281.00 643.77 a 913.33 c 1280.62 b 1005.00 648.50 332.98 b 24.23 d 0.00 q 5147.23
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 a 0.00 68.50 250.18 b 638.00 678.50 960.00 803.00 520.00 288.50 68.50 0.00 a 4275.18
1904 0.00 0.00 8.50 109.50 542.50 757.50 869.00 784.50 626.00 307.00 0.00 z 0.00 z 4004.50
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 0.00 z 0.00 z 0.00 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 543.00 814.00 1059.00 1034.50 788.79 a 329.00 83.50 6.00 4657.79
1949 0.00 0.00 24.00 265.00 666.50 960.00 1100.00 1022.50 538.50 453.50 95.00 0.00 5125.00
1950 0.00 0.00 13.00 92.50 566.00 803.50 898.00 831.50 645.00 491.50 42.00 0.00 4383.00
1951 0.00 0.00 2.50 125.50 678.00 716.50 948.00 860.00 536.00 341.50 28.00 20.50 4256.50
1952 0.00 0.00 25.00 312.00 544.00 942.50 1028.00 899.00 676.00 193.00 96.50 0.00 4716.00
1953 0.00 0.00 51.50 102.00 590.50 928.00 1015.50 998.00 716.50 532.17 a 150.50 1.50 5086.17
1954 0.00 32.50 21.50 384.00 475.00 961.00 1088.00 945.00 752.00 347.50 107.50 0.00 5114.00
1955 0.00 0.00 40.50 449.00 718.50 794.00 1199.00 1127.00 763.00 390.00 16.00 0.00 5497.00
1956 0.00 0.00 9.50 188.00 659.00 1008.50 937.50 984.50 638.50 550.50 97.00 0.00 5073.00
1957 0.00 0.50 28.50 325.00 577.50 850.50 1149.50 991.00 619.00 294.00 45.50 0.00 4881.00
1958 0.00 14.50 7.00 271.50 665.50 739.00 918.50 992.00 712.50 451.50 114.00 0.00 4886.00
1959 0.00 0.00 16.50 270.50 707.50 912.00 981.50 1109.50 688.00 247.00 24.50 10.50 4967.50
1960 0.00 0.00 7.50 319.14 a 594.00 817.00 997.00 1009.50 736.00 376.50 79.00 8.50 4944.14
1961 0.00 0.00 26.50 131.50 536.00 893.00 961.50 993.00 653.50 422.00 47.00 8.00 4672.00
1962 0.00 0.00 12.00 233.00 768.50 832.00 935.50 947.00 567.50 442.50 34.00 38.50 4810.50
1963 0.00 0.00 121.50 302.50 576.50 969.00 1007.00 909.50 711.50 651.00 86.50 0.00 5335.00
1964 0.50 1.00 17.50 273.50 756.50 872.50 1115.50 899.00 643.50 283.50 180.50 0.00 5043.50
1965 0.00 0.00 0.00 177.00 707.00 839.00 1000.50 928.00 557.50 388.50 79.00 13.50 4690.00
1966 0.00 7.00 108.50 138.00 459.00 864.00 1077.50 889.00 638.00 341.50 60.00 0.00 4582.50
1967 0.00 0.00 109.50 266.00 476.00 863.00 914.00 840.00 603.50 323.50 29.00 1.50 4426.00
1968 0.00 0.00 166.50 318.50 482.00 886.50 975.50 957.00 648.50 389.50 39.50 12.00 4875.50
1969 0.00 0.00 1.50 280.50 631.50 692.50 1032.00 999.50 685.50 258.50 56.50 0.00 4638.00
1970 0.00 0.00 1.50 297.00 676.50 896.00 1025.00 968.00 662.50 332.00 25.00 11.50 4895.00
1971 0.00 0.00 20.50 289.00 498.50 1019.00 907.00 938.00 752.50 520.00 82.00 0.00 5026.50
1972 0.00 0.00 25.50 183.50 681.00 832.50 959.50 986.00 675.00 270.00 24.00 0.00 4637.00
1973 0.00 0.00 102.50 226.00 507.50 936.00 1039.50 1023.00 671.00 523.00 46.50 6.00 5081.00
1974 0.00 0.00 31.50 304.50 516.50 795.00 1132.00 893.50 563.50 369.00 49.00 0.00 4654.50
1975 0.00 0.00 0.00 153.50 705.00 884.00 1063.50 1039.50 572.00 448.50 174.50 8.00 5048.50
1976 0.00 23.50 87.50 345.00 546.00 897.50 1088.00 950.50 672.00 237.50 14.00 0.00 4861.50
1977 0.00 6.50 147.00 478.50 867.00 926.00 1111.00 880.00 722.50 286.50 104.50 0.00 5529.50
1978 0.00 0.00 56.50 238.00 643.00 888.50 980.50 976.00 823.00 306.50 104.50 0.00 5016.50
1979 0.00 0.00 10.00 163.00 560.50 845.00 973.00 935.50 715.00 332.50 43.50 3.00 4581.00
1980 0.00 0.00 18.50 301.00 661.00 887.00 1084.50 994.50 738.00 251.50 73.00 0.00 5009.00
1981 8.50 46.50 92.50 376.00 548.50 880.00 1022.00 906.00 660.50 310.50 118.50 0.00 4969.50
1982 0.00 0.00 25.00 213.00 699.50 726.00 1038.50 925.50 641.00 379.00 47.00 28.00 4722.50
1983 0.00 2.00 63.00 151.00 471.50 872.50 1115.00 1135.00 699.00 344.50 88.00 0.00 4941.50
1984 0.00 13.50 0.00 214.00 536.50 901.50 951.50 1039.00 668.00 393.50 50.50 4.50 4772.50
1985 0.00 0.50 55.50 442.50 746.50 790.50 995.50 866.00 670.50 319.50 21.50 0.00 4908.50
1986 0.00 0.00 123.00 359.50 654.00 919.00 1061.50 842.00 723.00 356.00 13.00 0.00 5051.00
1987 0.00 0.50 103.00 426.00 773.50 981.50 1106.50 894.50 661.50 198.00 89.00 0.00 5234.00
1988 0.00 0.00 36.50 215.00 759.50 990.00 1064.50 1067.50 706.50 170.00 31.50 0.00 5041.00
1989 2.00 0.00 77.50 258.50 572.00 817.50 1075.50 975.00 595.50 376.00 18.50 0.00 4768.00
1990 0.00 3.00 93.50 282.50 504.50 866.50 956.00 938.50 770.50 314.00 116.00 0.00 4845.00
1991 0.00 0.00 73.00 319.00 734.00 1009.00 1012.00 936.50 596.50 304.00 6.00 0.00 4990.00
1992 0.00 0.00 67.50 205.50 647.00 819.00 827.50 769.00 599.00 327.50 12.50 0.00 4274.50
1993 0.00 0.00 6.50 163.50 570.00 776.00 957.50 929.00 478.50 302.00 27.00 0.00 4210.00
1994 0.00 0.50 53.50 298.50 629.50 898.00 884.00 810.50 711.50 379.00 76.00 0.00 4741.00
1995 0.00 0.00 102.00 164.00 532.00 905.50 999.00 1078.50 589.50 314.00 1.50 0.00 4686.00
1996 0.00 1.50 30.50 207.50 476.00 861.00 915.50 881.50 618.00 353.50 9.00 0.00 4354.00
1997 0.00 0.00 34.00 209.50 422.00 883.50 955.50 861.50 657.50 373.00 6.00 0.00 4402.50
1998 0.00 19.50 106.50 312.00 797.50 810.00 996.50 972.00 807.00 355.00 77.50 40.50 5294.00
1999 0.00 2.00 57.00 277.50 638.00 840.50 1087.50 884.00 598.00 330.15 a 118.50 13.00 4846.15
2000 0.00 44.50 141.50 281.50 644.00 775.00 932.00 918.00 677.00 400.50 54.50 0.00 4868.50
2001 0.00 0.00 0.50 401.00 674.00 875.50 1102.50 1052.50 641.50 348.00 285.00 28.50 5409.00
2002 14.00 16.50 11.50 345.50 577.00 975.00 1158.50 956.50 772.50 226.00 45.00 0.00 5098.00
2003 4.00 5.00 i 90.33 b 341.50 556.00 827.00 1007.00 1043.00 656.50 364.00 43.50 4.00 4936.83
2004 0.00 5.00 118.50 341.50 635.50 799.50 926.50 806.00 794.50 374.50 109.00 0.00 4910.50
2005 0.00 0.50 74.50 400.00 525.50 980.00 1064.50 934.00 807.00 303.50 i 117.00 0.00 4903.00
2006 5.50 0.00 43.50 398.00 642.50 864.50 1101.00 987.50 588.50 233.00 h 91.50 2.50 4725.00
2007 0.00 0.00 147.00 266.00 727.00 883.00 1004.50 989.00 740.50 442.50 37.00 0.00 5236.50
2008 0.00 0.00 2.00 188.00 494.00 821.50 1006.50 899.00 679.50 291.50 108.50 0.00 b 4490.50
2009 0.00 1.00 75.00 224.00 560.00 780.50 819.00 889.00 704.50 160.00 117.00 1.00 4331.00
2010 0.00 0.00 86.00 413.50 581.25 c 868.00 1045.00 1051.50 659.50 364.52 b 62.59 a 0.00 5131.85
2011 0.00 6.50 17.05 a 207.93 a 579.38 b 857.50 1113.33 b 935.00 554.50 375.50 55.38 d 0.00 c 4702.07
2012 0.00 0.00 388.50 303.50 725.00 928.00 1180.50 931.50 621.50 250.67 b 88.45 a 17.50 5435.12
2013 0.00 0.00 3.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 3.50
Period of Record Statistics
MEAN 0.82 3.55 53.19 271.45 612.87 866.96 1018.23 951.35 667.64 349.96 66.18 4.33 4860.68
S.D. 2.97 9.15 58.60 91.87 95.34 73.56 84.40 84.56 76.81 94.49 47.69 8.73 308.92
SKEW 3.84 3.32 2.76 0.11 0.25 -0.20 0.25 0.07 -0.05 0.53 1.57 2.53 -0.13
MAX 15.00 46.50 388.50 478.50 867.00 1019.00 1280.62 1138.00 832.00 651.00 285.00 40.50 5529.50
MIN 0.00 0.00 0.00 92.50 422.00 678.50 819.00 769.00 478.50 160.00 1.50 0.00 4210.00
NO YRS 76 75 75 75 75 75 76 76 76 74 75 74 68