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 200804
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
1907 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 d 0.00
1908 1.60 b 0.00 1.07 b 209.50 427.80 a 668.57 b 884.02 a 554.00 f 716.40 e 251.74 b 16.80 e 0.00 d 3177.50
1909 0.00 0.00 a 0.00 20.50 389.00 745.18 b 903.50 931.55 a 529.50 188.00 50.00 0.50 3757.73
1910 0.00 0.00 166.88 a 277.00 339.50 971.00 927.00 734.00 529.50 325.50 0.00 0.00 b 4270.38
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 0.00 98.50 216.00 323.50 666.00 848.50 724.00 405.50 149.50 3.00 0.00 3434.50
1947 0.00 0.00 0.50 p 63.00 294.50 586.50 914.50 983.50 496.50 454.00 26.38 a 0.00 3818.88
1948 0.00 0.00 2.50 176.00 432.00 633.00 861.50 808.00 611.50 216.50 18.50 0.00 a 3759.50
1949 0.00 0.00 0.00 166.55 a 485.50 756.00 882.00 884.50 420.00 252.50 28.50 0.00 3875.55
1950 0.00 0.00 0.00 19.50 318.00 686.00 793.00 682.00 a 567.50 259.00 9.50 0.00 a 3334.50
1951 0.00 0.00 0.00 66.50 531.00 583.50 826.50 707.50 385.50 199.50 4.00 5.00 3309.00
1952 0.00 0.00 0.00 270.00 432.00 740.50 825.00 700.00 536.00 147.00 26.50 0.00 3677.00
1953 0.00 0.00 a 0.50 59.50 449.50 733.00 822.00 857.50 475.00 422.00 66.00 0.00 3885.00
1954 0.00 0.00 0.00 102.00 302.00 710.00 875.00 781.00 436.50 157.50 27.00 0.00 3391.00
1955 0.00 0.00 6.20 a 268.50 580.50 718.00 979.50 933.50 494.00 254.00 0.00 0.00 4234.20
1956 0.00 0.00 0.00 13.50 365.00 818.00 753.50 756.50 363.00 366.00 48.00 0.00 3483.50
1957 0.00 0.00 0.00 177.32 b 425.50 626.00 974.50 787.40 a 417.00 196.00 9.00 0.00 3612.72
1958 0.00 a 6.50 1.50 136.55 a 457.00 477.00 759.50 844.00 528.00 257.50 33.50 0.00 a 3501.05
1959 0.00 0.00 6.50 113.50 503.00 768.00 894.50 912.00 516.00 99.20 a 0.50 0.00 3813.20
1960 0.00 0.00 0.00 a 116.50 437.50 648.50 910.50 897.00 579.31 a 283.50 0.50 0.00 3873.31
1961 0.00 a 6.50 24.50 43.00 396.50 800.50 859.50 925.00 487.50 238.50 8.50 0.00 3790.00
1962 0.00 0.00 0.00 121.50 482.00 693.50 779.50 831.50 455.00 329.50 13.00 13.50 3719.00
1963 0.00 0.00 66.00 160.50 381.00 807.00 946.00 822.50 586.50 525.00 40.00 0.00 4334.50
1964 0.00 0.00 3.50 157.00 564.50 689.00 950.00 700.00 422.50 213.00 63.50 0.00 3763.00
1965 0.00 0.00 0.00 61.00 439.50 676.50 807.00 789.00 266.50 255.50 33.00 0.00 3328.00
1966 0.00 0.00 11.50 58.45 a 332.50 723.50 983.00 739.00 505.00 205.00 0.00 0.00 3557.95
1967 0.00 0.00 29.50 90.00 296.50 652.50 833.50 774.50 564.50 188.50 12.50 0.00 3442.00
1968 0.00 0.00 87.00 157.50 359.50 661.00 825.00 775.00 511.50 262.50 4.00 0.00 3643.00
1969 0.00 0.00 0.00 174.50 451.50 499.50 837.00 948.50 544.00 124.00 44.00 0.00 3623.00
1970 0.00 0.00 0.00 102.00 357.50 782.00 952.00 865.50 559.00 215.00 1.00 0.00 3834.00
1971 0.00 0.00 2.00 151.50 383.00 785.50 745.00 793.50 531.00 297.00 3.50 0.00 3692.00
1972 0.00 0.00 1.00 83.00 557.50 686.50 766.00 782.50 382.00 148.50 3.00 0.00 3410.00
1973 0.00 0.00 23.50 94.50 383.50 677.00 808.00 866.00 457.00 330.50 3.00 0.00 3643.00
1974 0.00 0.00 0.00 132.50 308.00 691.50 982.00 712.00 378.50 223.00 20.00 0.00 3447.50
1975 0.00 0.00 0.00 28.50 508.50 691.50 976.50 828.50 413.50 261.50 75.50 0.00 3784.00
1976 0.00 4.00 7.00 197.50 461.38 a 798.00 932.50 939.00 579.50 170.00 7.50 0.00 4096.38
1977 0.00 0.00 46.50 287.50 769.50 732.00 942.50 644.50 482.00 183.00 34.50 0.00 4122.00
1978 0.00 0.00 16.00 0.00 z 536.00 656.50 811.00 805.00 0.00 z 189.50 65.00 0.00 3079.00
1979 0.00 0.00 0.00 82.00 0.00 z 685.50 0.00 z 695.43 a 529.50 114.00 0.00 z 0.00 2106.43
1980 0.00 0.00 0.00 241.50 610.00 687.50 926.00 748.00 390.00 107.50 4.00 0.00 3714.50
1981 0.00 6.00 29.00 149.50 452.00 661.50 872.00 807.00 516.00 197.37 a 86.00 0.00 3776.37
1982 0.00 a 0.00 0.50 165.50 561.50 563.50 936.50 850.00 513.50 241.00 6.50 4.00 3842.50
1983 0.00 0.00 0.00 114.50 363.50 736.50 1002.50 1009.00 560.00 180.50 20.50 0.00 3987.00
1984 0.00 0.00 0.00 127.50 401.50 718.50 901.00 927.50 364.50 280.50 13.50 0.00 3734.50
1985 0.00 0.00 5.50 236.00 592.00 576.50 851.00 685.00 413.79 a 174.50 5.50 0.00 3539.79
1986 0.00 0.00 a 57.00 172.00 534.50 758.50 912.00 711.50 433.00 195.00 3.00 0.00 3776.50
1987 0.00 0.00 33.50 343.00 567.50 791.00 928.00 732.00 542.50 126.50 40.50 0.00 4104.50
1988 0.00 0.00 0.00 a 172.50 698.00 910.00 1029.50 887.00 513.00 161.50 1.00 0.00 4372.50
1989 0.00 0.00 11.50 110.50 501.00 706.00 1017.50 859.00 524.00 266.00 0.00 0.00 3995.50
1990 0.00 0.00 20.00 198.50 427.50 771.00 894.50 886.50 0.00 z 139.50 45.50 1.50 3384.50
1991 0.00 1.00 9.50 212.00 627.50 844.50 863.50 926.50 472.76 a 138.00 0.00 a 0.00 4095.26
1992 0.00 0.00 4.50 102.50 539.00 618.00 660.00 702.00 452.50 213.38 a 0.00 0.00 3291.88
1993 0.00 0.00 16.00 75.50 401.50 612.50 789.00 803.42 a 315.50 121.00 0.00 0.00 a 3134.42
1994 0.00 a 0.00 10.00 124.00 518.50 757.00 820.00 733.00 582.00 268.00 23.00 0.00 a 3835.50
1995 0.00 0.00 18.50 22.50 420.00 864.50 851.50 901.50 483.50 128.50 0.00 0.00 3690.50
1996 0.00 0.00 0.50 30.00 368.50 753.00 808.50 879.00 519.00 184.00 1.00 0.00 z 3543.50
1997 0.00 0.00 4.00 98.50 299.50 795.00 844.00 761.50 585.50 246.00 0.00 0.00 3634.00
1998 0.00 4.00 17.00 214.00 628.50 627.50 872.00 894.50 636.50 207.50 3.00 1.50 4106.00
1999 0.00 0.00 22.50 150.50 488.00 713.00 936.00 811.00 449.50 138.50 45.50 0.00 3754.50
2000 0.00 2.50 63.00 153.50 482.00 612.50 877.00 831.00 478.50 252.00 37.24 a 0.00 3789.24
2001 0.00 0.00 0.00 146.00 499.50 725.50 940.00 919.50 515.00 144.31 b 127.50 b 0.00 4017.31
2002 0.00 0.00 0.00 125.00 0.00 z 811.50 960.00 818.00 0.00 z 53.50 0.00 0.00 2768.00
2003 0.00 0.00 43.50 189.50 465.00 710.00 896.00 948.00 530.50 269.00 2.50 0.00 4054.00
2004 0.00 0.00 5.50 112.00 307.50 581.00 810.00 637.50 628.00 192.00 13.50 0.00 3287.00
2005 0.00 0.00 15.00 227.00 377.50 779.00 928.50 793.00 605.50 224.50 18.50 0.00 3968.50
2006 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 136.50 32.50 0.00 169.00
2007 0.00 0.00 61.50 178.50 535.00 829.00 936.50 797.00 512.50 241.50 22.00 0.00 4113.50
2008 0.00 0.00 0.00 62.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 62.00
Period of Record Statistics
MEAN 0.02 0.46 16.40 139.19 453.67 709.96 879.90 816.19 495.06 218.16 21.12 0.40 3755.38
S.D. 0.20 1.50 29.35 73.28 104.11 90.70 74.73 88.77 82.57 84.05 25.30 1.84 286.10
SKEW 7.94 3.24 2.92 0.38 0.57 0.06 -0.30 0.03 -0.22 1.15 1.77 6.01 0.07
MAX 1.60 6.50 166.88 343.00 769.50 971.00 1029.50 1009.00 716.40 525.00 127.50 13.50 4372.50
MIN 0.00 0.00 0.00 13.50 294.50 477.00 660.00 637.50 266.50 53.50 0.00 0.00 3134.42
NO YRS 66 66 64 64 62 64 63 63 61 65 64 65 57