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
1894 4.00 0.00 87.50 273.00 e 445.50 916.11 c 1031.78 a 932.00 740.50 150.50 q 0.00 h 11.48 d 4441.88
1895 0.00 9.00 12.00 229.80 e 576.48 e 863.00 913.98 a 919.50 778.39 b 105.50 h 57.41 a 2.38 e 4361.96
1896 0.00 b 6.98 b 19.50 353.00 714.00 901.50 1081.00 1021.50 490.56 c 211.00 53.04 b 3.50 4855.57
1897 12.00 0.00 a 17.50 135.00 a 427.59 b 695.36 b 1004.50 779.81 b 865.71 b 455.50 36.21 a 0.00 4429.17
1898 0.00 0.00 49.94 d 204.44 c 512.00 806.90 a 612.50 i 860.00 736.50 262.00 63.00 0.00 3494.79
1899 0.00 l 0.00 b 0.00 366.50 557.00 820.18 b 953.00 973.83 b 522.86 b 0.00 z 95.89 b 1.07 b 4290.33
1900 0.00 d 7.26 a 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 700.50 576.00 77.59 a 0.00 z 1361.35
1901 0.00 z 0.00 z 0.00 z 242.00 f 478.50 809.00 1057.50 907.50 597.00 298.63 a 22.50 0.00 n 4170.63
1902 0.00 f 2.07 a 45.00 167.31 d 498.67 b 471.50 f 937.00 760.50 492.41 a 268.67 a 85.00 g 0.00 3171.63
1903 0.00 0.00 c 48.57 a 162.00 557.00 703.39 b 655.50 h 729.00 586.00 257.19 d 70.00 0.00 c 3113.14
1904 0.00 0.00 a 2.21 c 104.00 508.00 735.52 a 886.27 c 807.50 616.50 291.00 94.00 0.00 4045.00
1905 0.00 a 0.00 81.00 176.79 b 416.95 a 730.00 878.50 901.00 705.50 300.00 28.00 0.00 a 4217.74
1906 2.07 a 1.04 a 0.00 a 226.61 b 481.50 757.00 886.17 b 974.50 770.50 312.50 46.50 0.00 a 4458.38
1907 0.00 0.00 61.48 a 18.50 301.50 732.00 899.50 826.00 586.03 a 222.00 8.50 0.00 3655.52
1908 0.00 a 0.00 j 14.50 200.50 527.52 a 747.00 960.00 884.57 b 808.00 370.97 a 69.00 0.00 f 4582.05
1909 0.00 0.00 0.00 a 49.00 441.00 770.00 911.92 a 937.00 551.11 c 196.52 c 98.00 n 1.07 b 3857.61
1910 0.00 c 0.00 a 222.17 a 92.50 s 288.00 f 385.00 n 1006.50 195.50 x 561.96 b 151.00 w 0.00 z 0.00 z 1790.63
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 669.50 321.88 a 135.00 a 0.00 1126.38
1945 0.00 0.00 198.50 231.11 c 364.25 a 628.50 868.53 b 936.00 636.00 254.50 63.62 a 0.00 4181.02
1946 0.00 0.00 127.00 258.50 411.50 720.50 940.16 b 847.00 625.50 422.12 a 58.50 24.50 4435.27
1947 5.00 0.00 a 13.43 a 126.00 337.50 674.00 923.00 1124.00 716.50 522.50 f 0.00 z 0.00 a 3919.43
1948 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 791.79 b 990.00 968.00 780.00 330.00 139.50 13.50 4012.79
1949 0.00 0.00 32.50 212.00 560.00 897.00 1031.50 964.00 553.00 455.00 72.50 1.00 4778.50
1950 0.00 0.00 2.50 52.50 479.50 809.00 853.50 734.50 596.00 438.50 51.00 0.00 4017.00
1951 0.00 0.00 1.50 125.00 619.00 679.50 924.00 807.50 560.00 336.50 21.50 21.50 4096.00
1952 0.00 0.00 18.50 309.00 505.00 847.50 1021.45 a 874.50 681.00 203.00 87.50 1.50 4548.95
1953 1.55 a 0.00 a 34.00 101.00 517.50 837.50 972.00 951.18 a 676.00 484.00 162.00 5.00 4741.73
1954 0.00 6.00 7.00 292.50 370.00 838.50 705.50 g 846.00 669.50 327.00 68.50 0.00 3425.00
1955 0.00 0.00 21.00 360.50 611.00 772.50 1105.50 1066.00 693.50 398.00 12.00 0.00 5040.00
1956 0.00 0.00 0.00 119.50 470.00 855.00 854.50 900.00 554.50 497.00 115.00 0.00 4365.50
1957 0.00 a 5.00 10.00 285.00 460.00 788.00 976.50 903.50 605.50 264.00 38.50 3.00 4339.00
1958 0.00 0.00 0.00 199.00 521.50 666.50 910.50 940.00 653.00 398.02 c 109.00 0.00 4397.52
1959 0.00 0.00 0.00 190.00 690.78 a 827.50 926.50 1062.50 714.83 a 226.50 14.00 0.00 4652.61
1960 0.00 0.00 11.00 284.50 490.50 715.00 884.50 942.50 715.34 a 335.00 70.00 11.00 4459.34
1961 1.00 2.00 43.00 113.00 447.50 791.50 954.50 928.50 745.00 396.00 57.00 10.00 4489.00
1962 0.00 0.00 16.50 213.00 673.50 770.00 861.50 920.50 566.50 410.00 14.50 31.50 4477.50
1963 0.00 0.00 68.00 268.00 461.50 858.00 989.00 854.50 619.00 605.50 102.00 0.00 4825.50
1964 1.00 0.00 11.00 267.00 668.00 815.50 1036.50 847.50 606.50 269.00 178.50 0.00 4700.50
1965 0.00 0.00 0.00 107.00 665.50 727.00 894.00 868.50 593.50 350.50 71.50 12.00 4289.50
1966 0.00 0.00 48.00 127.50 383.50 847.50 1036.00 856.50 594.00 319.00 62.00 0.00 4274.00
1967 0.50 0.00 65.50 193.00 351.50 807.00 908.00 817.00 619.50 314.00 29.00 1.00 4106.00
1968 0.00 0.00 143.50 230.50 427.50 796.50 949.50 928.50 697.00 408.50 42.00 2.50 4626.00
1969 0.00 a 0.00 10.00 0.00 z 534.50 590.50 926.00 1020.50 629.50 282.00 39.50 0.00 4032.50
1970 0.00 0.00 0.00 253.00 562.00 843.50 1045.50 973.00 690.00 387.50 25.00 9.50 4789.00
1971 0.00 0.00 0.00 214.50 432.00 902.50 896.00 841.00 742.50 554.50 64.00 0.00 4647.00
1972 0.00 0.00 3.00 130.00 623.00 722.50 322.00 t 900.00 587.50 236.00 30.50 0.00 3232.50
1973 13.50 0.00 64.00 155.50 397.00 833.50 982.00 983.00 641.50 490.50 24.50 5.00 4590.00
1974 0.00 0.00 26.50 253.50 421.00 713.50 1017.00 894.00 524.00 332.50 76.00 0.00 4258.00
1975 0.00 0.00 1.00 93.50 675.00 812.50 1028.50 946.00 534.50 416.00 208.00 14.50 4729.50
1976 0.00 0.00 81.50 249.00 432.50 890.00 1010.00 887.00 603.50 217.50 10.50 0.00 4381.50
1977 0.00 0.00 97.50 380.00 773.50 736.00 1029.00 816.50 651.00 268.00 116.50 0.00 4868.00
1978 0.00 0.00 11.50 101.50 563.00 788.00 871.00 920.50 721.55 a 281.00 100.50 0.00 4358.55
1979 0.00 0.00 11.50 154.00 435.50 747.00 942.50 835.00 701.50 255.00 52.00 4.50 4138.50
1980 0.00 0.00 11.00 226.50 620.00 732.00 992.00 948.00 631.50 205.00 50.00 0.00 4416.00
1981 0.00 15.00 k 0.00 z 195.00 f 482.50 822.50 935.88 b 0.00 z 261.00 s 118.50 k 64.00 0.00 2304.88
1982 0.00 0.00 19.00 126.00 309.50 q 0.00 z 0.00 z 152.50 x 571.00 369.00 56.50 40.00 1181.50
1983 0.00 3.50 41.00 141.00 317.50 814.50 1083.50 1001.50 648.00 310.50 66.00 0.00 4427.00
1984 0.00 15.50 0.00 169.50 440.00 831.00 902.00 962.00 570.50 350.50 52.50 9.00 4302.50
1985 0.00 0.00 41.50 361.50 611.50 707.50 933.50 819.50 694.00 304.50 31.00 0.00 4504.50
1986 0.00 0.00 103.00 327.50 607.00 766.00 1015.50 827.00 654.50 316.50 26.50 0.00 4643.50
1987 0.00 0.00 75.50 319.29 b 675.00 938.50 1049.00 915.00 692.50 181.00 99.00 1.50 4946.29
1988 1.50 0.00 27.00 221.00 660.50 945.00 a 1067.50 1075.18 a 679.50 193.50 40.00 0.00 4910.68
1989 0.00 0.00 12.40 a 146.50 474.00 736.50 931.00 878.50 577.00 326.00 17.00 0.00 4098.90
1990 0.00 0.00 85.00 282.50 393.50 778.00 821.50 843.50 664.50 219.00 80.50 0.00 4168.00
1991 0.00 0.00 47.00 248.50 695.50 872.00 953.00 929.00 560.50 247.50 23.00 0.00 4576.00
1992 0.00 0.00 11.00 108.50 502.50 683.00 766.00 758.00 528.00 245.00 12.00 0.00 3614.00
1993 0.00 0.00 18.50 81.00 498.00 676.50 916.00 946.50 466.00 207.00 17.50 0.50 3827.50
1994 0.00 5.50 13.50 178.50 500.00 831.00 890.50 802.50 707.50 325.00 67.50 2.00 4323.50
1995 0.00 0.00 75.50 77.00 448.00 909.50 1008.50 1045.00 532.00 322.50 6.50 0.00 4424.50
1996 0.00 0.00 12.50 101.00 345.00 761.00 857.00 901.00 626.50 269.00 17.50 0.00 3890.50
1997 0.00 0.00 25.50 172.00 267.50 793.00 896.00 756.50 630.50 315.50 21.50 0.00 3878.00
1998 2.00 6.50 93.00 222.00 664.50 797.00 989.50 960.00 764.00 344.50 84.50 53.50 4981.00
1999 0.00 1.50 40.00 241.50 601.50 835.50 1069.00 840.50 605.50 250.00 119.00 13.00 4617.00
2000 0.00 23.50 109.00 148.00 580.73 a 786.00 892.00 884.50 610.00 420.50 81.00 0.00 a 4535.23
2001 0.00 0.00 0.00 282.50 585.00 784.00 983.50 995.00 561.00 279.50 158.00 23.00 4651.50
2002 2.50 0.50 5.50 211.00 351.00 819.50 1055.00 923.00 745.50 195.50 32.00 4.00 4345.00
2003 1.50 0.00 63.00 174.50 426.50 705.50 921.50 969.00 623.50 270.00 29.00 1.00 4185.00
2004 0.00 0.00 z 62.50 190.50 427.50 707.00 870.00 757.00 764.50 326.00 83.00 3.00 4191.00
2005 0.00 2.50 40.50 240.50 435.50 944.00 990.50 958.50 770.00 362.00 85.00 0.00 4829.00
2006 0.50 0.00 26.00 297.00 524.50 767.00 1038.50 931.00 558.50 199.00 95.50 5.00 4442.50
2007 5.50 0.00 123.00 218.50 625.00 864.50 952.00 949.00 711.00 478.50 38.50 0.00 4965.50
2008 0.50 0.00 0.00 204.00 406.00 793.50 955.00 870.50 660.50 261.50 105.00 0.00 4256.50
2009 0.00 2.50 26.00 150.00 525.50 750.00 836.00 847.00 670.00 156.50 79.50 0.00 4043.00
2010 0.00 0.00 34.50 292.50 594.00 794.00 1015.50 981.00 562.50 339.50 57.00 0.00 4670.50
2011 0.00 0.50 7.50 119.00 440.00 731.00 1058.50 941.00 557.50 335.00 63.50 3.00 4256.50
2012 0.00 0.00 307.50 158.50 648.50 881.00 1115.00 906.50 583.50 185.00 h 0.00 z 0.00 z 4600.50
Period of Record Statistics
MEAN 0.67 1.27 41.94 199.42 508.06 788.70 958.56 904.22 640.70 321.91 63.78 4.31 4430.64
S.D. 2.19 3.59 53.48 81.55 109.22 73.77 73.45 81.20 81.21 95.19 41.32 9.32 321.04
SKEW 4.51 4.14 2.47 0.18 0.18 -0.04 0.00 0.06 0.26 0.79 1.06 3.18 -0.30
MAX 13.50 23.50 307.50 380.00 773.50 945.00 1115.00 1124.00 865.71 605.50 208.00 53.50 5040.00
MIN 0.00 0.00 0.00 18.50 267.50 590.50 766.00 729.00 466.00 156.50 6.50 0.00 3614.00
NO YRS 81 80 81 79 81 81 79 81 85 79 80 81 65