date! ,

Monthly Total Growing Degree Days

(a vali)

Base Temperature = 40 F

File last updated on Apr 4, 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
1903 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 118.00 z 857.00 795.50 501.50 285.50 61.50 0.00 2501.00
1904 0.00 0.00 a 0.52 a 77.50 501.68 a 685.50 803.00 817.88 a 552.50 299.00 106.00 0.50 3844.08
1905 0.00 2.00 64.50 175.00 326.50 711.00 844.00 951.00 676.00 272.36 c 0.00 z 0.00 z 4022.36
1906 0.00 0.00 0.00 257.50 496.50 693.00 863.50 907.50 663.00 258.50 18.00 0.00 m 4157.50
1907 0.00 0.00 59.00 51.00 205.00 673.50 887.50 809.50 0.00 z 0.00 z 24.00 0.00 c 2709.50
1908 0.00 0.00 z 0.00 z 267.50 412.50 664.50 876.00 782.50 764.50 237.00 44.00 0.00 4048.50
1909 0.00 0.00 0.00 18.00 0.00 z 753.00 874.50 1024.15 d 0.00 z 0.00 z 0.00 z 0.00 2669.65
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 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1949 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1950 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1951 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1952 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1953 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1954 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1955 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 747.00 1103.00 1057.00 612.50 348.50 9.50 0.00 b 3877.50
1956 0.00 0.00 a 4.13 a 64.66 a 548.00 936.50 861.00 868.00 a 520.86 a 437.00 36.50 0.00 4276.65
1957 0.00 a 0.00 b 11.50 237.41 a 461.90 a 733.00 1092.50 888.50 533.50 266.50 22.50 0.00 4247.31
1958 0.00 23.00 11.00 179.50 643.50 642.50 867.50 970.30 a 685.00 387.50 68.00 0.00 4477.80
1959 0.00 c 0.00 a 41.50 217.00 588.47 b 900.00 996.00 1036.50 606.50 134.85 a 0.50 0.00 j 4521.32
1960 0.00 b 0.00 b 0.00 176.50 540.00 714.50 987.50 948.50 624.00 307.00 36.50 0.00 4334.50
1961 0.00 0.50 33.07 a 93.00 436.00 840.50 918.00 983.50 475.96 d 305.50 14.00 0.00 g 4100.03
1962 0.00 z 0.00 z 0.00 z 69.50 z 612.25 e 759.50 855.50 916.16 c 542.50 379.50 37.20 e 27.42 e 4130.03
1963 0.00 a 0.00 127.00 251.00 507.50 906.00 971.00 929.50 645.00 550.50 36.00 0.00 a 4923.50
1964 0.00 0.00 2.50 213.00 656.68 a 836.00 1068.50 840.50 534.50 290.50 98.00 0.00 4540.18
1965 0.00 c 0.00 a 0.00 b 136.50 543.50 774.50 960.00 897.50 282.50 341.00 55.00 0.00 3990.50
1966 0.00 c 0.00 61.00 86.50 446.50 837.60 e 1131.50 832.00 574.50 163.00 n 6.00 0.00 3975.60
1967 0.00 0.00 86.28 a 178.00 417.50 737.00 936.00 865.33 b 641.50 269.00 21.50 0.00 4152.11
1968 0.00 0.00 168.00 231.00 401.50 823.00 940.00 912.50 601.00 270.50 19.50 0.00 4367.00
1969 0.00 b 0.00 0.00 j 223.50 588.00 597.00 945.50 1010.50 489.00 g 155.00 49.00 3.00 3571.50
1970 0.00 0.00 0.00 172.50 578.50 869.50 1026.50 973.00 659.50 283.50 3.00 0.00 4566.00
1971 0.00 0.00 40.00 263.00 468.50 890.50 877.00 949.00 634.82 b 337.00 29.00 0.00 4488.82
1972 0.00 a 0.00 8.00 103.50 601.00 802.50 890.50 912.50 576.50 213.50 10.00 0.00 4118.00
1973 0.00 0.00 33.00 136.00 498.50 827.00 998.00 1047.00 572.59 a 447.43 a 25.50 0.00 a 4585.02
1974 0.00 0.00 15.50 219.00 437.50 782.07 a 1127.50 859.50 546.00 357.00 24.50 0.00 a 4368.57
1975 0.00 d 0.00 9.00 67.50 593.50 793.50 1106.00 951.00 519.00 357.50 125.50 0.00 4522.50
1976 0.00 a 12.00 72.50 326.00 524.50 896.50 1081.50 0.00 z 104.50 w 232.50 16.50 0.00 3162.00
1977 0.00 0.00 48.50 393.50 787.00 835.50 1032.50 792.00 607.00 237.50 49.50 0.00 4783.00
1978 0.00 0.00 27.00 138.00 560.00 772.50 943.00 955.50 768.50 297.50 96.00 0.00 4558.00
1979 0.00 0.00 0.00 125.00 377.00 780.00 956.50 860.00 709.50 232.50 27.00 2.50 4070.00
1980 0.00 0.00 8.50 282.50 617.50 822.50 1000.50 911.50 650.00 240.50 57.00 0.00 4590.50
1981 15.50 29.00 69.50 345.50 511.00 787.50 986.50 920.50 653.00 261.50 102.00 0.00 4681.50
1982 0.00 0.00 3.50 214.00 580.00 660.00 1014.00 931.00 584.00 260.00 9.00 9.50 4265.00
1983 0.00 3.50 19.50 98.50 441.00 769.00 1105.50 1128.00 651.00 243.50 42.50 0.00 4502.00
1984 0.00 0.00 0.00 129.50 471.00 785.00 962.00 1011.50 502.50 319.50 49.50 0.00 4230.50
1985 0.00 z 3.00 35.50 344.00 675.00 682.50 946.00 776.50 516.00 238.50 16.00 0.00 4233.00
1986 0.00 0.00 69.50 194.00 554.50 846.00 1003.00 801.50 539.00 279.00 7.50 0.00 4294.00
1987 1.00 6.00 68.00 427.00 722.50 914.50 1065.50 859.00 620.50 158.00 67.50 0.00 4909.50
1988 0.00 0.00 36.00 233.50 742.00 1038.00 1092.50 984.50 636.50 198.00 19.00 0.00 4980.00
1989 0.00 0.00 29.00 214.00 536.00 775.00 1075.50 939.00 590.00 323.50 6.50 0.00 4488.50
1990 0.00 1.50 45.50 246.00 483.50 822.50 906.50 901.00 716.00 224.50 73.00 6.00 4426.00
1991 0.00 13.00 34.50 267.50 627.00 908.00 936.00 930.50 578.00 262.00 8.50 0.00 4565.00
1992 0.00 3.50 35.50 138.50 614.50 691.50 723.50 751.50 558.00 272.00 0.00 0.00 3788.50
1993 0.00 0.00 13.00 116.50 475.00 666.50 854.50 881.50 436.00 240.50 1.50 0.00 3685.00
1994 0.00 0.00 29.00 190.00 642.50 809.50 862.50 804.00 653.50 312.50 40.00 0.00 4343.50
1995 0.00 0.00 75.50 53.00 436.00 829.50 948.00 990.50 545.50 214.00 0.00 0.00 4092.00
1996 0.00 0.00 11.00 111.50 396.50 826.50 859.00 898.00 539.50 300.50 5.50 0.00 3948.00
1997 0.00 0.00 16.00 147.50 383.00 855.00 923.00 857.50 650.00 326.50 4.00 0.00 4162.50
1998 0.00 4.50 22.00 244.50 681.50 695.00 971.50 935.50 755.00 278.50 28.50 23.00 4639.50
1999 0.00 6.00 j 3.00 y 201.00 e 499.32 c 373.00 n 1034.88 a 658.50 h 545.69 a 236.12 a 131.50 1.07 b 2649.58
2000 0.00 k 29.50 115.00 165.54 b 581.00 728.50 931.03 a 918.00 542.07 a 330.00 40.00 0.00 4380.64
2001 0.00 0.00 0.00 191.50 520.00 758.00 1030.50 973.00 571.00 219.00 189.50 0.00 4452.50
2002 0.50 2.50 0.00 162.50 340.50 853.00 1085.50 880.00 668.00 97.00 14.00 0.00 4103.50
2003 0.50 0.00 50.50 248.00 431.50 717.00 968.00 984.50 546.50 339.00 15.00 0.00 4300.50
2004 0.00 0.00 56.50 196.50 394.50 635.50 880.50 707.50 665.00 251.00 41.50 0.00 3828.50
2005 0.00 a 7.50 35.00 267.00 438.00 849.50 982.50 874.50 698.50 269.00 56.50 0.00 4478.00
2006 0.00 0.00 17.50 278.50 526.00 794.00 1065.50 904.00 455.50 209.00 66.00 0.00 4316.00
2007 0.00 0.00 69.50 208.00 613.00 831.00 1006.50 843.50 633.50 321.50 48.00 0.00 4574.50
2008 0.00 0.00 0.00 99.50 399.00 709.50 959.00 906.50 615.50 212.00 64.00 0.00 3965.00
2009 0.00 0.00 27.50 138.00 465.00 693.50 789.00 788.50 683.50 74.00 77.50 0.00 a 3736.50
2010 0.00 0.00 37.50 337.00 489.50 761.00 960.00 1016.00 488.00 321.50 60.00 0.00 4470.50
2011 0.00 0.00 1.50 93.00 394.50 695.50 1066.50 863.00 532.50 355.50 30.00 0.00 4032.00
2012 1.50 0.00 232.50 229.50 563.50 819.50 1093.00 847.85 a 572.00 178.50 30.50 4.50 4572.85
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 0.31 2.31 36.52 191.79 516.21 781.65 965.63 905.77 593.80 276.73 40.81 1.27 4339.50
S.D. 1.99 6.31 43.07 86.56 108.34 85.19 92.23 81.96 85.03 79.31 36.73 4.74 307.40
SKEW 7.45 3.33 2.26 0.36 0.02 0.25 -0.13 0.08 -0.56 0.38 1.60 4.55 -0.18
MAX 15.50 29.50 232.50 427.00 787.00 1038.00 1131.50 1128.00 768.50 550.50 189.50 27.42 4980.00
MIN 0.00 0.00 0.00 18.00 205.00 597.00 723.50 707.50 282.50 74.00 0.00 0.00 3685.00
NO YRS 61 61 60 62 62 63 65 63 61 62 63 61 49