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 m 0.00 2.50 59.50 470.50 911.50 991.50 858.50 645.00 c 273.50 90.50 0.00 b 4303.00
1894 0.00 0.00 a 65.00 252.41 a 574.00 950.50 1060.50 924.00 748.93 b 283.65 a 5.00 c 6.50 4870.49
1895 0.00 9.00 26.00 393.50 560.58 a 780.00 d 940.50 918.50 718.33 c 257.00 53.00 0.00 4656.42
1896 0.00 12.00 4.00 261.21 a 676.50 782.50 898.00 920.50 544.50 159.50 0.00 0.00 4258.71
1897 0.00 0.00 2.50 162.50 540.50 689.00 989.00 782.00 834.00 362.50 40.00 0.00 4402.00
1898 0.00 0.00 39.50 253.50 522.50 0.00 z 948.50 880.00 686.00 167.00 27.50 0.00 3524.50
1899 0.00 2.00 0.00 283.00 530.50 827.50 1009.50 933.50 486.50 286.00 54.50 0.00 4413.00
1900 2.07 a 0.00 8.50 328.00 609.50 806.50 639.00 i 0.00 z 284.50 q 0.00 z 0.00 z 0.00 1754.57
1901 0.00 r 0.00 1.50 294.50 605.50 826.50 1179.00 992.00 557.00 308.00 11.50 0.00 4775.50
1902 5.50 2.50 67.68 a 160.00 541.47 a 676.50 932.50 807.07 b 490.00 238.00 21.11 c 0.00 b 3942.33
1903 0.00 0.00 g 3.00 166.50 547.15 a 690.50 868.00 b 751.75 a 513.50 294.50 49.20 e 0.00 c 3884.10
1904 0.00 m 0.00 t 9.54 e 85.86 a 571.84 c 741.21 a 864.00 859.45 b 592.50 298.78 b 105.50 0.00 h 4128.67
1905 0.00 g 4.50 v 65.50 181.00 418.50 743.00 903.81 b 956.50 729.00 245.50 46.00 0.00 4288.81
1906 0.00 4.00 2.00 320.17 a 540.00 765.50 909.50 955.50 730.50 279.00 44.50 0.00 h 4550.67
1907 0.00 e 3.00 59.42 a 49.00 258.50 756.50 946.00 917.00 585.00 253.50 37.00 0.00 3864.92
1908 4.50 0.00 11.00 293.50 494.00 715.00 980.93 c 884.00 772.76 a 298.00 71.50 0.00 4525.19
1909 0.00 0.00 5.50 75.00 509.50 797.00 938.00 1059.00 639.50 294.50 b 98.50 12.50 4429.00
1910 0.00 a 0.00 228.00 397.50 467.50 854.50 1006.00 874.50 607.50 b 480.50 0.00 0.00 4916.00
1911 0.00 b 0.00 119.50 225.52 a 687.00 975.00 982.00 814.61 d 614.00 227.50 0.00 0.00 4645.13
1912 0.00 0.00 a 6.00 258.50 579.00 734.00 959.00 839.58 a 563.00 353.83 b 86.50 3.00 4382.41
1913 0.00 b 0.00 11.50 269.50 453.50 902.00 912.50 1013.18 a 647.50 242.83 a 93.00 8.78 a 4554.30
1914 0.00 0.00 18.00 234.50 632.00 855.50 1088.50 874.50 663.50 489.28 a 108.00 1.03 a 4964.82
1915 0.00 0.00 0.50 481.50 429.00 688.50 853.00 819.50 633.50 388.00 74.50 0.00 4368.00
1916 0.00 a 0.00 12.50 165.00 505.50 688.00 1192.00 945.50 582.00 253.50 66.00 6.20 a 4416.20
1917 0.00 0.00 6.00 72.50 458.50 719.00 1043.00 860.50 580.00 128.00 82.50 4.00 3954.00
1918 0.00 0.00 91.50 157.50 623.50 826.00 969.00 954.50 456.00 379.00 79.00 0.00 4536.00
1919 0.00 0.00 32.50 198.50 552.50 870.00 1050.00 931.50 717.50 197.00 9.50 0.00 a 4559.00
1920 0.00 0.00 170.50 a 78.50 583.50 823.00 951.50 905.50 729.50 479.50 6.00 0.00 4727.50
1921 0.00 11.00 62.50 319.50 596.50 1015.50 1100.00 952.00 669.50 344.50 7.00 5.00 5083.00
1922 0.00 0.00 4.50 189.44 c 678.50 912.50 931.50 1056.00 732.00 350.00 56.00 0.00 d 4910.44
1923 0.00 0.00 0.00 160.00 583.83 a 929.00 1126.00 886.00 685.00 284.00 60.00 8.55 b 4722.39
1924 1.00 1.50 7.50 212.00 322.50 718.00 918.00 879.50 581.50 512.50 54.00 0.00 4208.00
1925 0.00 0.00 62.50 347.00 468.00 823.00 957.00 1015.00 782.00 77.50 10.00 0.00 4542.00
1926 0.00 0.00 27.00 235.00 714.50 756.00 1044.50 884.00 532.00 308.50 26.00 0.00 4527.50
1927 0.00 0.00 33.50 207.00 429.00 774.50 882.50 880.00 743.00 421.50 10.50 0.00 4381.50
1928 0.00 a 0.00 a 0.00 z 147.00 663.40 a 681.00 1036.50 0.00 z 0.00 z 316.50 39.50 0.00 2883.90
1929 0.00 0.00 41.50 217.00 455.00 803.50 1031.50 985.05 b 500.00 279.50 4.50 0.00 4317.55
1930 0.00 26.50 19.00 254.50 517.00 779.00 1035.50 1005.50 547.00 301.50 71.50 0.00 4557.00
1931 4.00 6.50 1.00 293.79 a 490.83 a 1012.00 1105.67 a 929.50 839.00 392.00 114.00 0.00 a 5188.29
1932 0.00 13.00 1.50 182.00 595.50 898.00 1010.00 943.43 a 597.00 215.50 33.00 1.00 4489.93
1933 0.00 3.50 20.50 188.00 534.00 1085.00 1121.50 895.00 797.00 264.50 21.50 0.00 4930.50
1934 2.00 0.00 29.00 226.00 891.00 964.00 1098.50 922.50 496.00 432.00 65.00 0.00 5126.00
1935 0.00 1.00 56.00 165.50 426.50 711.00 1186.00 1002.50 667.24 a 258.00 0.00 0.00 4473.74
1936 0.00 0.00 1.00 130.50 721.50 779.50 1229.67 a 999.50 722.50 260.00 12.50 0.00 4856.67
1937 0.00 0.00 6.00 171.00 620.00 762.00 1076.50 1144.50 663.50 244.00 51.50 0.00 4739.00
1938 0.00 0.00 85.50 277.50 448.00 813.50 991.50 1053.50 705.50 513.50 43.00 0.00 4931.50
1939 0.00 0.00 104.50 219.50 751.75 a 859.50 1051.50 958.00 742.50 281.50 58.00 45.50 5072.25
1940 0.00 0.00 0.00 110.50 518.73 a 805.50 1053.50 853.00 732.50 430.50 30.50 0.00 4534.73
1941 0.00 0.00 3.50 301.50 691.50 795.00 1005.50 943.00 641.00 328.00 41.50 12.50 4763.00
1942 0.00 0.00 25.00 347.50 458.00 736.50 934.00 901.00 501.00 357.00 35.00 0.00 4295.00
1943 0.00 0.00 56.50 228.00 441.00 859.50 1049.50 987.50 558.00 373.00 0.00 z 0.00 4553.00
1944 11.50 0.00 2.00 104.50 654.50 860.00 959.50 927.00 615.00 341.00 81.50 0.00 4556.50
1945 0.00 a 0.00 149.00 154.00 369.50 643.00 922.50 909.50 567.50 285.50 21.00 0.00 4021.50
1946 0.00 0.00 121.50 342.50 471.50 800.50 997.50 867.00 564.50 277.50 19.00 0.50 4462.00
1947 1.00 0.00 15.50 105.00 410.00 693.50 978.50 1100.00 654.00 504.00 39.50 0.00 b 4501.00
1948 0.00 0.00 20.50 297.00 555.50 763.00 1042.50 959.45 a 773.79 a 311.00 50.50 0.00 4773.24
1949 0.00 0.00 4.00 229.00 656.50 875.50 1036.00 1057.00 519.50 336.50 62.00 0.00 4776.00
1950 0.00 0.00 11.50 48.62 a 441.50 840.50 886.00 807.00 644.50 350.00 31.50 0.00 4061.12
1951 0.00 0.00 0.00 119.50 639.63 a 669.50 925.00 842.50 461.00 273.00 17.07 a 6.50 3953.70
1952 0.00 0.00 b 0.00 315.00 563.50 846.00 1002.00 891.00 668.00 219.50 66.50 0.00 4571.50
1953 0.00 0.00 26.50 106.00 519.00 832.00 961.00 969.00 621.50 486.00 87.00 0.00 4608.00
1954 0.00 8.00 3.00 216.00 419.02 a 833.00 1003.50 886.50 582.50 228.50 67.50 0.00 4247.52
1955 0.00 0.00 23.00 396.00 722.50 779.00 1102.00 1041.00 610.50 334.00 8.50 0.00 5016.50
1956 0.00 0.00 5.00 64.00 544.50 947.50 871.50 891.00 519.00 457.00 49.00 0.00 4348.50
1957 0.00 0.00 6.50 246.00 457.00 747.00 1094.50 868.50 526.50 288.50 38.00 0.00 4272.50
1958 0.00 16.00 11.00 203.00 606.00 618.50 865.00 939.50 653.50 358.50 75.00 0.00 4346.00
1959 0.00 0.00 33.00 187.00 572.50 912.00 987.50 1026.50 621.50 121.50 0.00 4.50 4466.00
1960 0.00 0.00 1.50 200.50 535.00 737.00 981.50 761.00 f 647.00 331.00 33.50 0.00 3467.00
1961 0.00 a 4.50 37.00 81.50 440.00 857.50 916.00 999.00 585.52 a 327.00 14.00 0.00 a 4262.02
1962 0.00 a 0.00 0.00 192.50 621.00 790.50 887.00 929.00 523.00 304.00 k 35.00 25.50 4003.50
1963 0.00 0.00 99.00 274.50 531.00 885.00 a 983.00 933.50 681.50 560.00 35.00 0.00 4982.50
1964 0.00 1.50 3.50 214.00 629.00 856.00 1064.00 815.00 531.50 281.00 124.50 0.00 4520.00
1965 0.00 0.00 0.00 161.00 618.50 844.50 999.00 0.00 z 352.00 365.80 a 45.00 0.00 3385.80
1966 0.00 0.00 66.65 a 102.50 454.00 822.50 1133.00 838.00 590.50 270.00 4.00 0.00 4281.15
1967 0.00 0.00 71.50 220.00 441.00 790.50 918.12 a 831.00 594.50 286.50 39.00 0.00 4192.12
1968 0.00 0.00 178.50 286.50 428.00 861.50 0.00 z 953.50 630.00 299.50 24.50 0.00 3662.00
1969 0.00 0.00 a 0.00 240.00 615.00 599.00 956.00 1022.50 640.50 199.50 53.00 0.00 4325.50
1970 0.00 0.00 0.00 191.00 615.00 914.00 1009.00 918.50 642.50 291.50 2.00 0.00 4583.50
1971 0.00 0.00 22.50 273.50 500.50 910.50 795.00 862.50 602.50 368.50 15.50 0.00 4351.00
1972 0.00 0.00 14.50 133.45 a 626.50 800.00 922.50 919.50 544.00 191.00 0.50 0.00 z 4151.95
1973 0.00 0.00 58.00 169.00 523.50 861.00 957.00 1002.00 595.50 464.50 26.00 0.00 4656.50
1974 0.00 0.00 8.50 227.00 475.00 815.00 1103.50 800.00 535.00 385.50 44.00 0.00 4393.50
1975 0.00 0.00 9.00 99.50 664.50 830.00 1118.00 994.50 546.50 400.00 113.50 0.00 4775.50
1976 0.00 11.00 95.00 363.50 561.00 970.50 1114.50 1078.00 647.00 214.00 20.50 0.00 5075.00
1977 0.00 3.00 71.09 b 427.00 826.00 861.50 1059.00 796.00 641.50 272.50 80.56 c 0.00 c 5038.14
1978 0.00 0.00 c 31.50 167.00 689.50 850.00 996.50 1039.00 809.50 371.50 78.00 0.00 5032.50
1979 0.00 0.00 0.50 i 136.50 403.50 f 875.50 1078.00 895.56 d 574.00 g 239.96 d 31.50 3.21 b 3260.23
1980 0.00 0.00 2.87 d 375.00 735.50 911.50 1118.00 1009.00 682.00 272.00 62.50 0.00 5168.37
1981 3.50 44.00 106.50 367.00 578.50 838.50 1055.50 966.00 662.00 282.00 109.00 0.00 5012.50
1982 0.00 0.00 12.00 241.50 676.50 722.50 1086.50 993.00 619.00 298.50 12.00 11.88 a 4673.38
1983 0.00 6.50 21.50 110.50 418.50 776.50 1119.00 1089.50 615.50 219.00 50.17 a 0.00 4426.67
1984 0.00 0.00 0.00 167.50 454.50 842.00 978.50 1007.50 462.50 331.50 36.00 0.00 4280.00
1985 0.00 0.00 b 50.50 410.00 772.50 789.00 1023.50 837.00 560.69 a 248.50 18.50 0.00 4710.19
1986 0.00 0.00 87.00 266.50 646.00 954.50 1075.00 886.00 635.50 322.50 14.50 0.00 4887.50
1987 0.00 4.50 72.50 458.00 774.00 978.50 1122.50 915.50 683.00 181.50 76.50 0.00 5266.50
1988 0.00 0.00 29.00 233.00 794.00 1039.00 1151.00 1082.42 a 712.00 219.50 22.24 a 0.00 5282.16
1989 0.00 0.00 22.50 234.50 611.00 837.50 1100.00 957.00 630.00 339.50 4.50 0.00 4736.50
1990 0.00 3.50 48.00 287.50 524.50 859.00 938.50 923.50 0.00 z 262.50 89.50 2.50 3939.00
1991 0.00 6.50 23.00 283.00 667.00 966.00 979.50 966.00 614.00 292.50 7.50 0.00 4805.00
1992 0.00 1.50 41.50 156.50 655.00 743.50 764.00 781.50 606.00 296.00 0.00 0.00 4045.50
1993 0.00 0.00 20.50 135.50 542.00 727.50 897.50 913.00 485.50 267.50 1.00 0.00 3990.00
1994 0.00 0.00 11.50 179.50 646.50 848.50 864.50 804.50 662.00 330.50 45.50 0.00 4393.00
1995 0.00 0.00 68.00 80.50 453.50 887.00 970.50 1001.00 550.00 212.00 0.00 0.00 4222.50
1996 0.00 0.00 10.50 96.50 430.00 850.50 887.00 897.00 585.00 264.00 7.50 0.00 4028.00
1997 0.00 0.00 8.00 155.00 400.00 910.00 941.50 873.50 700.00 357.50 0.00 0.00 4345.50
1998 0.00 13.00 33.50 244.50 728.50 716.00 972.50 969.00 756.00 327.00 35.50 18.50 4814.00
1999 0.00 0.00 30.50 220.86 a 591.00 821.00 1044.50 903.50 571.00 259.50 64.50 6.00 4512.36
2000 0.00 a 15.00 127.62 a 179.50 568.50 741.00 963.00 926.50 609.00 327.50 61.00 0.00 4518.62
2001 0.00 0.00 0.00 177.00 561.00 817.50 1014.00 956.50 557.00 258.00 193.50 0.00 4534.50
2002 1.00 0.00 a 0.00 153.00 400.50 905.00 1085.00 a 878.50 637.50 111.00 2.00 0.00 4173.50
2003 1.00 0.00 42.50 213.50 451.00 751.50 940.00 966.50 583.00 307.50 9.00 0.00 4265.50
2004 0.00 b 0.00 45.50 203.00 399.50 675.00 885.50 702.00 738.00 273.00 30.00 0.00 3951.50
2005 0.00 2.00 21.50 279.00 398.50 865.00 969.50 865.00 682.50 280.50 48.50 0.00 z 4412.00
2006 0.00 z 0.00 10.00 0.00 z 579.50 816.00 0.00 z 892.50 482.00 203.00 50.00 0.00 3033.00
2007 0.00 0.00 89.26 b 247.00 681.00 879.00 969.50 850.50 654.50 353.50 29.00 0.00 4753.26
2008 0.00 0.00 a 0.00 112.00 435.00 745.00 959.00 895.50 612.00 230.50 69.00 0.00 4058.00
2009 0.00 a 0.00 a 32.00 151.50 505.50 729.50 799.50 811.50 712.50 96.00 77.00 0.00 3915.00
2010 0.00 0.00 35.50 358.50 533.00 773.50 964.50 1011.50 543.50 345.00 59.00 0.00 4624.00
2011 0.00 0.00 0.00 125.50 476.00 794.00 1117.50 926.00 585.00 377.50 31.50 0.00 4433.00
2012 3.00 0.00 255.00 264.50 671.50 890.00 1146.50 871.00 567.50 167.50 27.50 0.00 4864.00
2013 0.00 0.00 0.50 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 0.50
Period of Record Statistics
MEAN 0.35 2.00 35.93 216.37 555.59 819.00 998.89 924.54 622.42 302.28 43.07 1.67 4546.30
S.D. 1.38 5.67 46.77 92.91 111.60 90.58 90.12 80.09 88.42 89.86 34.03 5.59 337.47
SKEW 5.68 4.66 2.21 0.47 0.29 0.22 0.08 0.12 0.05 0.34 1.06 5.35 0.09
MAX 11.50 44.00 255.00 481.50 891.00 1085.00 1229.67 1144.50 839.00 560.00 193.50 45.50 5282.16
MIN 0.00 0.00 0.00 48.62 258.50 599.00 764.00 702.00 352.00 77.50 0.00 0.00 3864.92
NO YRS 116 118 119 119 119 119 117 116 116 118 118 116 101