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
1914 0.00 z 0.00 z 0.00 z 0.00 z 446.50 l 794.50 1048.50 847.50 628.00 436.00 63.00 0.00 3817.50
1915 0.00 0.00 0.00 428.00 392.50 627.50 798.50 779.00 595.50 308.00 34.00 0.00 3963.00
1916 0.00 a 0.00 8.00 155.50 444.50 630.50 1139.00 891.00 533.50 176.00 45.50 h 0.00 3978.00
1917 0.00 0.00 6.00 52.50 433.00 692.07 a 1036.43 a 847.50 578.00 106.50 69.50 0.00 3821.50
1918 0.00 0.50 89.00 139.00 574.00 799.50 916.00 956.50 444.00 346.00 60.00 2.00 4326.50
1919 0.00 0.00 16.00 177.00 519.50 863.50 1053.00 924.00 687.50 170.50 0.00 0.00 4411.00
1920 0.00 0.00 39.50 46.00 525.00 756.50 914.00 881.50 698.50 434.50 5.50 0.00 4301.00
1921 0.00 9.50 40.82 a 238.50 545.50 989.50 1068.00 937.50 637.00 298.00 0.00 z 0.00 z 4764.32
1922 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 918.50 1017.50 737.00 280.50 37.00 0.00 2990.50
1923 0.00 a 0.00 b 1.00 176.00 470.17 a 869.00 1060.50 846.00 676.50 283.50 45.50 0.00 4428.17
1924 0.00 1.00 0.50 165.50 315.17 a 621.00 800.50 786.00 427.50 321.50 4.50 0.00 3443.17
1925 0.00 0.00 59.00 287.50 379.50 677.50 821.50 964.00 332.00 p 25.50 0.00 z 0.00 z 3214.50
1926 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 649.14 a 1002.50 872.00 486.50 235.00 3.00 0.00 3248.14
1927 0.00 0.00 21.00 194.50 394.00 723.00 846.50 803.50 658.50 316.50 6.50 0.00 3964.00
1928 0.00 0.00 55.50 112.00 631.00 645.00 959.00 896.50 520.00 272.50 30.50 0.00 4122.00
1929 0.00 0.00 37.50 224.50 419.00 773.50 1142.00 1084.00 544.50 303.50 8.00 0.00 4536.50
1930 0.00 17.50 15.50 250.50 554.00 858.50 1058.00 1031.00 622.00 290.00 50.50 0.00 4747.50
1931 2.00 4.00 13.50 265.50 0.00 z 935.50 1104.50 903.00 828.00 374.00 80.00 0.00 4510.00
1932 0.00 17.00 7.50 201.00 594.00 898.50 1048.50 984.50 617.00 176.50 29.00 0.00 4573.50
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 1070.02 a 1001.00 820.50 324.50 39.50 0.00 a 3255.52
1949 0.00 0.00 0.50 247.50 643.50 853.50 1033.00 1087.00 542.00 340.00 56.50 0.00 4803.50
1950 0.00 0.00 3.50 41.00 409.00 843.62 a 883.50 814.00 659.50 321.50 39.00 0.00 4014.62
1951 0.00 0.00 b 0.00 117.50 655.00 670.50 956.50 851.50 506.67 c 268.67 d 15.00 a 0.00 a 4041.33
1952 0.00 j 0.00 a 0.00 301.50 590.03 a 907.24 a 1026.00 977.00 474.50 n 70.00 t 83.28 a 0.00 3885.05
1953 0.00 0.00 28.50 60.50 k 305.00 k 681.50 h 1006.98 a 1032.50 674.00 514.00 98.28 a 0.00 3354.26
1954 0.00 f 0.00 a 2.50 232.50 406.50 830.00 1041.50 950.50 600.00 251.50 69.31 a 0.00 a 4384.31
1955 0.00 0.00 20.84 b 417.50 749.00 836.00 1142.50 1083.00 672.00 386.50 14.44 c 0.00 5321.79
1956 0.00 0.00 6.50 69.83 a 545.08 a 973.50 942.00 972.22 b 615.00 483.00 42.41 a 0.00 a 4649.55
1957 0.00 a 0.00 19.63 a 251.79 b 540.50 804.00 1171.00 958.50 611.50 316.50 26.00 0.00 d 4699.42
1958 0.00 e 33.19 a 21.00 250.50 677.98 d 709.29 b 961.55 c 1053.00 731.38 a 414.00 58.89 c 0.00 4910.77
1959 0.00 b 0.00 40.50 237.50 619.00 970.00 1053.00 1110.50 722.00 159.65 a 5.77 d 3.62 a 4921.54
1960 0.00 0.00 b 0.50 211.50 603.50 788.00 1074.50 1060.50 748.00 385.00 40.18 b 0.00 4911.68
1961 0.00 c 8.81 a 50.78 b 109.29 b 493.50 915.50 972.50 1076.50 552.78 c 350.62 b 17.50 0.00 h 4547.77
1962 0.00 0.00 0.00 b 181.00 587.50 788.00 883.50 929.00 577.50 434.00 44.50 29.81 e 4454.81
1963 0.50 1.00 113.67 a 245.00 545.60 a 907.50 1044.00 959.50 729.00 602.00 60.00 0.00 5207.77
1964 0.00 0.00 7.50 257.14 b 706.50 892.00 1114.50 938.50 625.50 330.15 a 124.00 0.00 4995.79
1965 0.00 0.00 a 0.00 163.00 575.00 818.50 981.00 922.00 363.00 400.50 55.00 1.00 4279.00
1966 0.00 0.00 42.00 88.50 462.93 a 829.50 1167.00 873.68 a 644.50 295.50 0.00 0.00 4403.62
1967 0.00 0.00 73.50 187.50 411.00 776.00 926.50 873.50 665.00 286.50 39.50 0.00 4239.00
1968 0.00 0.00 187.50 256.50 415.00 816.00 981.00 977.00 630.50 312.00 23.00 0.00 4598.50
1969 0.00 0.00 0.00 231.00 624.50 629.50 978.50 1056.00 697.50 188.00 48.50 1.50 4455.00
1970 0.00 0.00 0.00 168.00 556.00 911.50 1072.50 1035.50 691.50 318.00 4.50 0.00 4757.50
1971 0.00 0.00 15.50 314.50 517.50 913.00 873.50 977.00 653.50 370.00 12.50 0.00 4647.00
1972 0.00 0.00 12.00 141.00 619.50 828.50 934.00 981.00 604.00 230.50 9.00 0.00 4359.50
1973 0.00 0.00 44.50 195.50 527.00 856.00 953.50 1042.00 571.50 460.00 14.50 0.00 4664.50
1974 0.00 0.00 6.00 205.00 448.50 821.00 1132.00 872.00 561.50 362.50 25.50 0.00 4434.00
1975 0.00 0.00 7.50 63.00 609.00 814.00 1114.50 951.00 539.50 372.50 108.50 0.00 4579.50
1976 0.00 7.77 a 55.00 305.00 544.50 932.50 1097.00 1114.00 709.50 260.29 b 21.50 0.00 b 5047.06
1977 0.00 2.00 50.00 417.00 839.00 851.00 1057.62 a 802.00 628.00 285.50 65.69 a 0.00 4997.81
1978 0.00 0.00 24.00 125.50 638.50 829.50 989.00 1010.50 817.00 316.00 76.50 0.00 4826.50
1979 0.00 0.00 0.00 a 109.50 410.00 808.00 977.50 870.00 724.00 227.00 14.50 0.00 4140.50
1980 0.00 0.00 0.00 302.00 695.50 812.50 1024.50 905.00 608.00 242.00 55.50 0.00 4645.00
1981 1.50 21.50 72.50 304.00 552.00 760.50 988.50 937.00 638.00 269.00 109.50 0.00 4654.00
1982 0.00 0.00 5.50 179.50 621.50 670.50 1033.00 970.50 578.50 262.50 7.50 9.00 4338.00
1983 0.00 3.50 8.00 118.50 468.50 821.00 1137.00 1122.00 656.50 238.50 49.00 0.00 4622.50
1984 0.00 0.50 0.00 190.00 531.00 836.50 839.00 f 1077.50 519.00 346.00 45.50 0.50 3546.50
1985 0.00 6.00 51.50 368.50 717.00 724.50 999.00 823.50 531.50 249.00 15.50 0.00 4486.00
1986 0.00 0.00 75.50 216.50 622.00 917.00 1044.00 846.50 572.50 316.50 18.00 0.00 4628.50
1987 4.50 4.50 48.00 451.50 0.00 z 947.50 1099.00 932.50 679.50 206.00 69.50 0.00 4442.50
1988 0.00 0.00 15.50 261.00 805.50 1061.00 1150.50 1044.00 665.00 225.50 12.50 0.00 5240.50
1989 0.00 0.00 8.50 204.50 612.50 791.00 1102.00 948.00 636.00 324.00 10.50 0.00 4637.00
1990 0.00 1.00 57.50 262.00 512.00 865.00 949.50 943.00 735.00 255.50 80.50 8.50 4669.50
1991 0.00 13.50 26.00 283.00 671.50 919.00 988.50 1031.00 630.00 276.00 10.50 0.00 4849.00
1992 0.00 5.50 43.00 171.50 665.50 735.00 779.50 828.00 622.50 305.00 0.00 0.00 z 4155.50
1993 0.00 0.00 17.50 159.00 564.50 706.50 899.00 946.00 504.50 273.00 1.00 0.00 4071.00
1994 0.00 0.00 5.00 227.50 683.00 905.00 923.50 868.50 743.00 358.50 55.50 1.00 4770.50
1995 0.00 0.00 52.00 75.50 520.50 946.50 993.50 1043.50 631.00 234.50 1.50 0.00 4498.50
1996 0.00 0.00 2.50 109.50 471.50 896.00 963.00 971.00 630.50 325.50 0.00 z 0.00 4369.50
1997 0.00 0.00 0.00 174.50 480.50 935.50 984.50 917.00 744.00 399.50 5.00 0.00 4640.50
1998 0.00 9.00 23.00 308.00 723.00 770.50 1039.00 1035.00 812.50 341.50 23.00 16.50 5101.00
1999 0.00 3.50 59.50 249.50 623.00 854.50 1087.50 985.50 580.50 271.00 120.50 5.00 4840.00
2000 0.00 15.00 116.50 220.00 633.50 783.00 992.00 1003.00 651.00 0.00 z 43.00 0.00 4457.00
2001 0.00 0.00 0.00 222.50 655.00 873.50 1096.50 1041.00 657.00 275.50 204.50 0.00 a 5025.50
2002 0.00 0.50 0.00 211.50 475.00 973.00 1122.50 943.00 767.50 116.50 11.00 0.00 4620.50
2003 0.00 z 0.00 105.00 316.50 549.00 822.50 1024.50 1074.50 653.00 412.50 16.00 0.00 4973.50
2004 0.00 0.00 75.50 282.00 475.50 750.00 928.50 676.00 665.00 266.50 23.50 0.00 4142.50
2005 0.00 0.00 33.50 259.50 423.00 865.50 974.00 854.00 689.50 294.00 50.00 0.00 4443.00
2006 0.00 0.00 15.00 279.00 531.00 827.50 1058.50 908.00 497.00 194.00 48.00 0.00 4358.00
2007 0.00 0.00 44.50 208.50 600.00 852.50 1011.50 837.00 615.00 317.50 26.50 0.00 4513.00
2008 0.00 0.00 0.00 97.50 426.00 741.50 961.00 908.00 610.50 213.00 66.50 0.00 4024.00
2009 0.00 0.00 14.50 133.00 463.50 729.50 816.50 808.00 711.50 84.00 57.00 0.00 3817.50
2010 0.00 0.00 33.50 334.50 528.50 801.50 992.50 979.00 509.50 345.00 53.00 0.00 a 4577.00
2011 0.00 e 0.00 0.00 124.50 447.00 756.50 1087.00 925.50 585.00 364.50 29.00 0.00 4319.00
2012 4.00 0.00 211.00 235.00 613.50 865.50 1109.00 859.00 590.00 185.50 19.00 0.00 4691.50
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 0.16 2.30 30.42 212.60 552.23 820.31 1008.51 945.90 630.81 298.88 40.22 0.98 4533.67
S.D. 0.73 5.68 39.43 89.30 105.47 94.82 90.95 91.47 89.28 94.17 35.30 4.03 367.15
SKEW 4.98 3.24 2.31 0.35 0.24 -0.19 -0.46 -0.19 -0.20 0.07 1.68 5.57 -0.33
MAX 4.50 33.19 211.00 451.50 839.00 1061.00 1171.00 1122.00 828.00 602.00 204.50 29.81 5321.79
MIN 0.00 0.00 0.00 41.00 315.17 621.00 779.50 676.00 363.00 25.50 0.00 0.00 3443.17
NO YRS 78 81 81 79 77 81 83 84 82 82 80 80 66