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 7.00 97.50 438.00 878.50 1030.15 e 0.00 z 597.12 d 378.00 0.00 z 0.00 d 3426.27
1894 0.00 a 0.00 81.50 265.71 b 540.29 c 0.00 z 510.50 q 945.50 c 798.00 e 296.71 c 7.22 c 14.50 2949.44
1895 0.00 i 0.50 0.00 z 237.93 a 709.00 555.50 n 0.00 z 521.50 o 869.50 228.50 73.00 7.50 2125.93
1896 0.00 5.00 10.00 344.50 758.00 798.21 b 0.00 z 918.08 e 509.00 212.50 15.00 n 0.00 b 3555.29
1897 10.50 0.00 12.50 165.00 482.50 701.00 1028.00 786.00 801.50 0.00 z 0.00 z 1.03 a 3988.03
1898 0.00 z 0.00 z 0.00 z 316.11 c 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 248.53 b 49.00 0.00 613.65
1899 0.00 5.50 0.00 426.50 653.50 0.00 z 1005.00 1055.50 543.00 385.00 92.50 1.50 4168.00
1900 0.00 0.00 0.00 266.00 574.00 0.00 z 0.00 z 0.00 z 747.22 c 0.00 z 40.00 0.00 z 1627.22
1901 0.00 b 0.00 z 0.00 a 293.50 633.95 a 864.44 c 1149.58 a 0.00 z 676.15 d 0.00 z 40.00 g 0.00 u 3617.63
1902 0.00 d 5.00 20.50 q 0.00 z 470.50 f 762.00 e 973.00 806.00 b 609.31 a 317.20 c 86.50 i 0.00 f 3472.51
1903 0.00 d 0.00 b 81.00 214.14 a 597.94 e 708.00 978.16 c 0.00 z 367.50 j 302.00 76.50 0.00 2957.74
1904 0.00 a 0.00 a 0.00 93.00 518.98 b 0.00 z 935.74 d 845.55 b 633.50 313.50 85.50 0.00 b 3425.78
1905 0.00 r 0.00 81.50 199.29 b 435.55 a 822.93 a 888.87 e 927.33 b 725.69 a 293.95 c 37.20 e 0.00 4412.30
1906 0.00 0.00 a 0.00 b 241.15 d 489.28 a 773.28 a 908.82 a 1001.82 a 792.41 a 300.91 b 38.50 0.00 e 4546.17
1907 0.00 b 0.00 50.50 50.00 300.00 733.27 d 926.50 834.23 c 588.89 c 242.50 15.00 0.00 a 3740.89
1908 0.00 0.00 15.50 h 224.00 549.22 a 771.00 978.00 903.00 861.50 352.33 e 62.07 a 0.00 4701.11
1909 0.00 b 0.00 0.00 42.41 a 457.00 795.00 a 940.50 956.23 e 589.66 a 223.72 a 147.93 a 1.03 a 4153.48
1910 0.00 0.00 217.50 281.00 392.09 d 847.20 e 1046.00 943.50 619.82 b 419.00 1.50 0.00 4767.61
1911 0.00 0.00 44.00 192.00 647.79 b 936.50 986.50 864.00 632.00 248.50 12.00 2.00 4565.29
1912 0.00 0.00 0.50 206.00 525.50 778.00 970.30 a 765.50 650.50 303.50 41.50 0.00 4241.30
1913 0.00 a 3.50 31.00 233.00 470.88 b 837.00 919.50 893.00 628.00 291.00 57.00 2.00 4365.88
1914 0.00 0.00 18.50 162.50 585.00 749.48 a 1010.17 b 886.50 626.25 b 443.50 19.00 k 0.00 d 4481.91
1915 0.00 0.00 0.00 431.50 346.00 616.00 808.00 699.00 628.00 364.00 95.00 0.00 3987.50
1916 0.00 0.00 18.00 f 201.50 518.50 665.50 1203.50 1010.00 605.69 a 313.50 60.00 9.30 a 4587.49
1917 0.00 0.00 21.00 129.50 385.50 664.50 996.50 852.50 612.41 a 118.50 62.50 0.00 3842.91
1918 0.00 b 0.00 82.50 135.50 646.50 805.00 943.00 1038.00 497.00 441.00 114.00 11.50 4714.00
1919 0.00 0.00 51.00 216.00 503.00 988.00 1068.00 890.50 737.50 333.00 21.00 0.00 4808.00
1920 0.00 0.00 84.00 100.00 506.00 858.50 891.00 844.50 756.50 551.50 21.50 12.50 4626.00
1921 0.00 3.00 84.50 373.00 633.00 978.00 1212.50 969.00 799.50 354.00 22.00 2.00 5430.50
1922 0.00 a 0.00 a 25.00 179.50 744.00 766.00 483.50 j 908.50 662.00 332.00 80.50 0.00 a 3697.50
1923 0.00 0.00 11.00 192.50 519.50 941.50 1024.00 881.00 645.00 283.00 66.50 10.13 e 4574.13
1924 0.00 c 0.00 2.50 205.50 396.50 723.50 912.00 930.50 518.50 462.50 86.00 0.00 4237.50
1925 0.00 d 6.00 46.00 322.00 403.00 849.83 a 930.50 923.00 770.50 119.00 33.00 0.00 4402.83
1926 0.00 0.00 3.50 136.00 529.50 646.00 938.50 898.00 576.00 256.00 16.00 0.00 3999.50
1927 0.00 0.00 59.50 158.50 415.00 682.00 904.50 758.00 707.00 381.50 39.50 0.00 4105.50
1928 0.00 0.00 40.00 81.21 a 553.35 a 643.50 948.50 930.00 545.69 a 378.00 46.50 0.00 4166.75
1929 0.00 0.00 42.50 217.50 401.00 693.00 971.50 839.00 620.89 b 321.50 30.00 0.00 a 4136.89
1930 0.00 34.00 20.50 200.50 557.00 823.50 1006.50 967.00 705.50 344.00 160.00 3.00 4821.50
1931 0.00 1.50 8.00 219.50 455.00 923.50 1102.50 907.50 840.50 428.50 177.50 0.50 5064.50
1932 2.50 4.50 2.50 117.50 518.50 897.50 1001.50 967.50 638.50 248.50 26.00 7.50 4432.50
1933 0.00 0.50 0.00 139.00 572.50 1026.00 1033.00 876.00 802.50 272.00 31.50 2.50 4755.50
1934 0.00 0.00 3.00 157.00 737.50 940.00 999.50 845.00 581.50 383.50 85.50 0.00 4732.50
1935 0.00 0.00 b 16.53 a 128.50 365.50 682.50 1113.50 945.00 638.00 295.00 17.00 0.00 4201.53
1936 0.00 0.00 29.00 106.50 695.50 723.00 1138.50 1022.50 744.50 244.50 30.50 17.00 4751.50
1937 0.00 0.00 0.00 107.50 530.00 773.50 1042.50 1109.00 705.00 230.00 44.00 0.00 4541.50
1938 0.00 0.00 112.00 276.50 521.00 779.00 984.00 1010.50 629.00 480.50 a 123.50 0.00 4916.00
1939 1.00 0.00 54.00 155.50 617.00 817.00 1043.00 934.50 743.00 319.00 34.50 15.00 4733.50
1940 0.00 0.00 6.50 99.50 458.00 819.00 1038.00 927.00 693.50 398.50 42.50 0.00 4482.50
1941 0.00 0.00 0.00 314.00 673.00 864.00 1051.50 973.00 739.00 388.00 77.50 16.50 5096.50
1942 0.00 0.00 5.50 356.50 490.00 805.50 973.00 927.00 609.00 371.50 63.50 0.00 4601.50
1943 0.00 0.00 53.50 145.50 471.00 897.50 1040.00 988.50 516.50 283.50 6.00 0.00 4402.00
1944 13.00 0.00 0.00 111.00 658.50 896.50 981.50 1021.00 687.50 308.50 131.00 0.00 4808.50
1945 0.00 0.00 195.50 223.00 407.00 683.79 a 907.50 947.50 641.00 249.00 48.00 0.00 4302.29
1946 0.00 0.00 108.00 263.50 457.00 762.50 984.00 870.50 644.50 453.50 58.00 18.00 4619.50
1947 1.50 0.00 11.00 111.00 337.00 700.50 940.00 1142.50 720.00 640.00 47.00 0.00 4650.50
1948 0.00 0.00 28.50 298.00 465.00 788.50 1018.50 986.00 769.50 294.00 84.50 4.50 4737.00
1949 0.00 0.00 23.50 228.00 585.00 948.00 1070.00 984.50 545.50 467.50 74.00 6.00 4932.00
1950 0.00 0.00 4.50 52.00 498.00 802.50 896.00 787.00 619.50 453.00 40.50 0.00 4153.00
1951 0.00 0.00 5.50 109.00 619.50 724.00 947.50 826.50 560.50 300.00 19.00 17.00 4128.50
1952 0.00 0.00 13.00 298.50 506.50 865.00 1050.00 902.00 691.50 197.50 80.00 0.50 4604.50
1953 0.00 0.00 21.00 94.50 527.00 880.00 1014.00 960.00 659.50 464.50 146.00 2.00 4768.50
1954 0.00 6.50 10.00 271.50 371.50 856.00 967.00 865.00 646.50 299.00 56.50 0.00 4349.50
1955 0.00 0.00 17.50 322.50 590.00 772.00 1109.00 1062.50 687.00 357.50 13.50 0.00 4931.50
1956 0.00 0.00 0.00 79.00 446.50 857.50 854.50 888.00 541.00 484.00 93.50 0.00 4244.00
1957 0.00 3.00 8.00 271.00 448.00 794.00 988.00 896.50 572.00 262.47 a 32.50 0.00 4275.47
1958 0.00 0.00 0.00 180.50 515.00 658.00 896.00 937.50 648.00 382.00 113.00 0.00 4330.00
1959 0.00 a 0.00 0.00 168.00 656.00 838.00 950.50 1048.50 688.00 201.50 11.00 0.50 4562.00
1960 0.00 0.00 9.00 269.00 469.00 718.50 895.00 947.50 693.00 313.00 51.00 12.00 4377.00
1961 1.00 0.00 32.00 92.50 433.00 798.50 948.50 925.00 691.50 363.50 46.50 6.50 4338.50
1962 0.00 0.00 12.50 193.50 669.00 779.00 856.50 917.00 550.00 402.00 6.50 30.00 4416.00
1963 0.00 0.00 50.00 220.00 453.00 866.00 1015.00 870.00 638.50 628.00 101.50 0.00 4842.00
1964 0.00 1.00 17.50 240.50 678.00 830.50 1013.50 841.00 585.50 283.50 184.50 0.00 4675.50
1965 0.00 0.00 0.00 82.00 659.00 751.50 923.50 845.00 572.50 317.50 63.50 3.50 4218.00
1966 0.00 2.50 30.50 124.50 394.50 848.00 1055.50 868.50 595.00 308.00 47.50 0.00 4274.50
1967 0.00 0.00 49.00 167.50 353.00 808.50 881.00 780.50 598.50 281.50 16.50 0.00 3936.00
1968 0.00 0.00 128.50 245.50 441.50 788.50 929.00 923.00 675.50 373.50 35.50 7.50 4548.00
1969 0.00 0.00 7.00 184.00 545.00 600.50 933.00 999.50 622.00 264.00 28.00 0.00 4183.00
1970 0.00 0.00 0.00 246.50 556.00 853.50 1023.00 959.00 659.50 371.50 26.50 8.00 4703.50
1971 0.00 0.00 0.00 184.00 430.50 913.00 915.50 864.50 755.50 523.50 59.50 0.00 4646.00
1972 0.00 0.00 1.00 92.50 644.00 720.00 933.00 912.50 596.50 226.00 31.50 0.00 4157.00
1973 8.00 0.00 58.50 160.50 403.00 868.50 1020.00 1004.00 661.50 467.00 26.50 5.00 4682.50
1974 0.00 0.00 19.50 239.00 418.00 714.50 1026.00 894.00 523.00 305.50 63.00 0.00 4202.50
1975 0.00 0.00 2.00 93.00 657.50 809.00 1014.00 945.00 508.00 381.50 195.00 8.50 4613.50
1976 0.00 0.50 60.50 237.00 449.50 902.50 1032.50 900.00 607.00 209.00 8.50 0.00 4407.00
1977 0.00 1.00 84.50 365.50 788.00 755.00 1064.00 845.50 662.00 273.50 113.00 0.00 4952.00
1978 0.00 0.00 22.50 94.00 590.00 809.50 927.00 967.00 735.00 263.00 86.50 0.00 4494.50
1979 0.00 0.00 8.00 158.50 488.50 803.50 976.50 870.50 690.00 249.50 47.50 2.50 4295.00
1980 0.00 0.00 11.00 231.00 625.00 779.00 1028.50 942.50 630.00 181.50 31.00 0.00 4459.50
1981 0.00 18.00 67.50 238.50 539.00 866.67 c 1016.00 943.00 584.00 220.10 a 85.34 a 0.00 4578.11
1982 0.00 0.00 16.50 153.00 723.50 674.50 1030.50 858.50 593.00 367.50 41.00 28.50 4486.50
1983 0.00 0.00 18.50 102.00 344.00 808.50 1063.00 983.50 594.00 288.00 54.00 0.00 4255.50
1984 0.00 11.50 0.00 189.50 418.50 162.00 x 613.00 k 951.00 550.00 350.00 40.50 3.00 2514.00
1985 0.00 0.00 20.50 314.50 609.00 685.50 894.00 777.50 580.50 290.50 28.00 0.00 4200.00
1986 0.00 0.00 73.50 298.00 608.00 791.50 1009.00 799.00 643.50 291.50 25.50 0.00 4539.50
1987 0.00 0.00 61.50 301.00 618.50 918.00 1071.00 896.50 667.00 150.00 90.00 2.00 4775.50
1988 1.50 0.00 b 21.38 b 175.00 675.00 925.50 1076.00 1047.00 675.50 181.50 46.50 0.00 4824.88
1989 0.00 0.00 a 42.00 143.50 494.00 742.00 1003.50 893.00 596.00 354.00 16.50 0.00 4284.50
1990 0.00 0.00 64.00 282.50 399.50 800.50 931.50 890.00 705.00 235.50 117.00 0.00 4425.50
1991 0.00 0.00 46.50 264.00 685.50 930.50 931.50 888.00 584.50 286.00 23.00 0.50 4640.00
1992 0.00 0.00 14.50 109.50 544.50 721.50 813.50 798.00 0.00 z 275.50 12.50 0.00 3289.50
1993 0.00 0.00 16.00 99.00 541.00 725.00 956.50 962.00 471.00 224.50 18.00 0.00 4013.00
1994 0.00 0.50 16.00 202.50 537.50 874.00 895.50 815.00 725.00 364.00 84.50 6.00 4520.50
1995 0.00 0.00 68.50 80.00 487.50 958.50 1023.50 1052.50 569.50 315.50 5.00 0.00 4560.50
1996 0.00 0.00 10.00 120.00 392.50 786.00 879.00 929.50 656.00 308.00 21.50 0.00 4102.50
1997 0.00 0.50 27.00 175.00 327.00 855.00 925.00 794.50 655.50 345.00 25.50 0.00 4130.00
1998 0.00 3.50 101.00 246.00 727.50 798.00 996.00 981.50 764.00 362.50 85.00 54.50 5119.50
1999 0.00 4.00 54.00 259.50 626.50 872.50 1092.50 895.50 641.50 287.00 147.00 16.00 4896.00
2000 0.00 29.50 122.50 183.00 599.00 765.00 a 935.50 938.50 615.52 a 422.00 83.00 0.00 4693.52
2001 0.00 0.00 0.00 282.00 597.50 786.72 a 1020.50 1008.50 584.48 a 272.28 a 193.50 31.00 4776.49
2002 10.00 8.00 18.50 256.50 440.00 889.00 1141.00 999.00 792.50 225.00 48.00 5.50 4833.00
2003 4.50 0.00 67.50 214.50 515.50 783.50 982.00 1033.50 681.50 308.00 37.50 5.50 4633.50
2004 0.00 0.00 70.50 228.50 455.50 729.50 926.50 789.00 800.50 343.00 85.00 1.50 4429.50
2005 0.00 2.00 46.50 284.50 482.00 1017.50 1069.50 1017.50 810.50 407.50 102.50 0.00 5240.00
2006 1.50 0.00 28.50 346.50 566.50 842.50 1092.50 996.50 599.50 214.00 93.50 4.50 4786.00
2007 4.50 0.00 120.50 244.00 682.50 902.00 990.50 966.00 703.50 486.50 36.50 0.00 5136.50
2008 0.00 0.00 a 3.50 203.00 468.50 816.00 977.50 924.00 706.50 297.50 101.00 0.00 4497.50
2009 0.00 1.50 26.50 169.50 568.00 810.00 863.50 892.50 729.50 170.50 121.00 0.00 4352.50
2010 0.00 0.00 57.00 367.00 650.00 858.50 1081.50 1056.00 621.50 390.00 89.00 0.00 5170.50
2011 0.00 0.00 8.50 134.50 489.50 805.00 1103.50 991.50 571.50 385.50 70.50 3.00 4563.00
2012 1.00 1.00 328.00 202.00 682.50 937.00 1201.00 969.50 646.50 210.50 h 0.00 z 0.00 z 4968.50
Period of Record Statistics
MEAN 0.52 1.39 36.40 201.89 530.92 807.68 990.89 920.95 653.48 325.13 61.02 3.71 4522.28
S.D. 2.01 4.69 48.04 84.14 108.78 87.98 78.79 79.94 83.27 94.14 43.37 7.89 321.60
SKEW 4.62 5.24 2.95 0.34 0.16 0.06 0.37 -0.04 0.38 0.64 1.10 3.52 0.17
MAX 13.00 34.00 328.00 431.50 788.00 1026.00 1212.50 1142.50 869.50 640.00 195.00 54.50 5430.50
MIN 0.00 0.00 0.00 42.41 300.00 600.50 808.00 699.00 471.00 118.50 1.50 0.00 3740.89
NO YRS 117 118 115 119 118 113 113 114 117 116 113 116 100